--- uae/src/gencpu.c 2018/04/24 16:38:54 1.1.1.2 +++ uae/src/gencpu.c 2018/04/24 17:01:41 1.1.1.15 @@ -1,396 +1,461 @@ -/* +/* * UAE - The Un*x Amiga Emulator * * MC68000 emulation generator * - * This is a fairly stupid program that generates a lot of case labels that + * This is a fairly stupid program that generates a lot of case labels that * can be #included in a switch statement. * As an alternative, it can generate functions that handle specific * MC68000 instructions, plus a prototype header file and a function pointer * array to look up the function for an opcode. * Error checking is bad, an illegal table68k file will cause the program to * call abort(). - * The generated code is sometimes sub-optimal, an optimizing compiler should + * The generated code is sometimes sub-optimal, an optimizing compiler should * take care of this. - * - * Copyright 1995, 1996 Bernd Schmidt + * + * The source for the insn timings is Markt & Technik's Amiga Magazin 8/1992. + * + * Copyright 1995, 1996, 1997, 1998, 1999, 2000 Bernd Schmidt */ #include "sysconfig.h" #include "sysdeps.h" #include -#include "config.h" -#include "options.h" #include "readcpu.h" #define BOOL_TYPE "int" -static long int counts[65536]; +static FILE *headerfile; +static FILE *stblfile; -static int isspecific(int opcode) -{ - return counts[opcode]>5; -} +static int using_prefetch; +static int using_exception_3; +static int cpu_level; + +/* For the current opcode, the next lower level that will have different code. + * Initialized to -1 for each opcode. If it remains unchanged, indicates we + * are done with that opcode. */ +static int next_cpu_level; + +static int *opcode_map; +static int *opcode_next_clev; +static int *opcode_last_postfix; +static unsigned long *counts; -static void read_counts(void) +static void read_counts (void) { FILE *file; - unsigned long opcode,count, total; - int trapcount=0; - int trap=0; + unsigned long opcode, count, total; char name[20]; - memset(counts, 0, sizeof counts); + int nr = 0; + memset (counts, 0, 65536 * sizeof *counts); - file=fopen("insncount","r"); - if(file) - { - fscanf(file,"Total: %lu\n",&total); - while(fscanf(file,"%lx: %lu %s\n",&opcode,&count,name)==3) + file = fopen ("frequent.68k", "r"); + if (file) { + fscanf (file, "Total: %lu\n", &total); + while (fscanf (file, "%lx: %lu %s\n", &opcode, &count, name) == 3) { + opcode_next_clev[nr] = 4; + opcode_last_postfix[nr] = -1; + opcode_map[nr++] = opcode; + counts[opcode] = count; + } + fclose (file); + } + if (nr == nr_cpuop_funcs) + return; + for (opcode = 0; opcode < 0x10000; opcode++) { + if (table68k[opcode].handler == -1 && table68k[opcode].mnemo != i_ILLG + && counts[opcode] == 0) { - counts[opcode]=10000.0*count/total; - if(isspecific(opcode)) - { - trapcount+=count; - trap++; - } + opcode_next_clev[nr] = 4; + opcode_last_postfix[nr] = -1; + opcode_map[nr++] = opcode; + counts[opcode] = count; } - fclose(file); -#if 0 - fprintf(stderr,"trap %d function: %f%\n",trap,100.0*trapcount/total); -#endif } + if (nr != nr_cpuop_funcs) + abort (); } +static char endlabelstr[80]; +static int endlabelno = 0; +static int need_endlabel; static int n_braces = 0; +static int m68k_pc_offset = 0; +static int insn_n_cycles; -static void start_brace(void) +static void start_brace (void) { n_braces++; - printf("{"); + printf ("{"); } -static void close_brace(void) +static void close_brace (void) { assert (n_braces > 0); n_braces--; - printf("}"); + printf ("}"); } -static void finish_braces(void) +static void finish_braces (void) { while (n_braces > 0) - close_brace(); + close_brace (); } -static void pop_braces(int to) +static void pop_braces (int to) { while (n_braces > to) - close_brace(); + close_brace (); } -static int bit_size(int size) +static int bit_size (int size) { - switch(size) { - case sz_byte: return 8; - case sz_word: return 16; - case sz_long: return 32; - default: - abort(); + switch (size) { + case sz_byte: return 8; + case sz_word: return 16; + case sz_long: return 32; + default: abort (); } return 0; } -static const char *bit_mask(int size) +static const char *bit_mask (int size) { - switch(size) { - case sz_byte: return "0xff"; - case sz_word: return "0xffff"; - case sz_long: return "0xffffffff"; - default: - abort(); + switch (size) { + case sz_byte: return "0xff"; + case sz_word: return "0xffff"; + case sz_long: return "0xffffffff"; + default: abort (); } return 0; } -static void genamode(amodes mode, char *reg, wordsizes size, char *name, int getv, int movem) +static const char *gen_nextilong (void) +{ + static char buffer[80]; + int r = m68k_pc_offset; + m68k_pc_offset += 4; + + insn_n_cycles += 8; + + if (using_prefetch) + sprintf (buffer, "get_ilong_prefetch(%d)", r); + else + sprintf (buffer, "get_ilong(%d)", r); + return buffer; +} + +static const char *gen_nextiword (void) +{ + static char buffer[80]; + int r = m68k_pc_offset; + m68k_pc_offset += 2; + + insn_n_cycles += 4; + + if (using_prefetch) + sprintf (buffer, "get_iword_prefetch(%d)", r); + else + sprintf (buffer, "get_iword(%d)", r); + return buffer; +} + +static const char *gen_nextibyte (void) +{ + static char buffer[80]; + int r = m68k_pc_offset; + m68k_pc_offset += 2; + + insn_n_cycles += 4; + + if (using_prefetch) + sprintf (buffer, "get_ibyte_prefetch(%d)", r); + else + sprintf (buffer, "get_ibyte(%d)", r); + return buffer; +} + +static void fill_prefetch_0 (void) +{ + if (using_prefetch) + printf ("fill_prefetch_0 ();\n"); +} + +static void fill_prefetch_2 (void) +{ + if (using_prefetch) + printf ("fill_prefetch_2 ();\n"); +} + +static void sync_m68k_pc (void) +{ + if (m68k_pc_offset == 0) + return; + printf ("m68k_incpc(%d);\n", m68k_pc_offset); + switch (m68k_pc_offset) { + case 0: + /*fprintf (stderr, "refilling prefetch at 0\n"); */ + break; + case 2: + fill_prefetch_2 (); + break; + default: + fill_prefetch_0 (); + break; + } + m68k_pc_offset = 0; +} + +/* getv == 1: fetch data; getv != 0: check for odd address. If movem != 0, + * the calling routine handles Apdi and Aipi modes. + * gb-- movem == 2 means the same thing but for a MOVE16 instruction */ +static void genamode (amodes mode, char *reg, wordsizes size, char *name, int getv, int movem) { start_brace (); - switch(mode) { - case Dreg: + switch (mode) { + case Dreg: if (movem) - abort(); - if (getv) - switch(size) { - case sz_byte: -#ifdef AMIGA + abort (); + if (getv == 1) + switch (size) { + case sz_byte: +#if defined(AMIGA) && !defined(WARPUP) /* sam: I don't know why gcc.2.7.2.1 produces a code worse */ /* if it is not done like that: */ - printf("\tBYTE %s = ((UBYTE*)&m68k_dreg(regs, %s))[3];\n", name, reg); + printf ("\tuae_s8 %s = ((uae_u8*)&m68k_dreg(regs, %s))[3];\n", name, reg); #else - printf("\tBYTE %s = m68k_dreg(regs, %s);\n", name, reg); + printf ("\tuae_s8 %s = m68k_dreg(regs, %s);\n", name, reg); #endif break; - case sz_word: -#ifdef AMIGA - printf("\tWORD %s = ((WORD*)&m68k_dreg(regs, %s))[1];\n", name, reg); + case sz_word: +#if defined(AMIGA) && !defined(WARPUP) + printf ("\tuae_s16 %s = ((uae_s16*)&m68k_dreg(regs, %s))[1];\n", name, reg); #else - printf("\tWORD %s = m68k_dreg(regs, %s);\n", name, reg); + printf ("\tuae_s16 %s = m68k_dreg(regs, %s);\n", name, reg); #endif break; - case sz_long: - printf("\tLONG %s = m68k_dreg(regs, %s);\n", name, reg); + case sz_long: + printf ("\tuae_s32 %s = m68k_dreg(regs, %s);\n", name, reg); break; - default: abort(); + default: + abort (); } - break; - case Areg: + return; + case Areg: if (movem) - abort(); - if (getv) - switch(size) { - case sz_word: - printf("\tWORD %s = m68k_areg(regs, %s);\n", name, reg); + abort (); + if (getv == 1) + switch (size) { + case sz_word: + printf ("\tuae_s16 %s = m68k_areg(regs, %s);\n", name, reg); break; - case sz_long: - printf("\tLONG %s = m68k_areg(regs, %s);\n", name, reg); + case sz_long: + printf ("\tuae_s32 %s = m68k_areg(regs, %s);\n", name, reg); break; - default: abort(); + default: + abort (); } + return; + case Aind: + printf ("\tuaecptr %sa = m68k_areg(regs, %s);\n", name, reg); break; - case Aind: - printf("\tCPTR %sa = m68k_areg(regs, %s);\n", name, reg); - if (getv) - switch(size) { - case sz_byte: - printf("\tBYTE %s = get_byte(%sa);\n", name, name); - break; - case sz_word: - printf("\tWORD %s = get_word(%sa);\n", name, name); - break; - case sz_long: - printf("\tLONG %s = get_long(%sa);\n", name, name); - break; - default: abort(); - } + case Aipi: + printf ("\tuaecptr %sa = m68k_areg(regs, %s);\n", name, reg); break; - case Aipi: - printf("\tCPTR %sa = m68k_areg(regs, %s);\n", name, reg); - switch(size) { - case sz_byte: - if (getv) printf("\tBYTE %s = get_byte(%sa);\n", name, name); - if (!movem) { - start_brace(); - printf("\tm68k_areg(regs, %s) += areg_byteinc[%s];\n", reg, reg); - } + case Apdi: + insn_n_cycles += 2; + switch (size) { + case sz_byte: + if (movem) + printf ("\tuaecptr %sa = m68k_areg(regs, %s);\n", name, reg); + else + printf ("\tuaecptr %sa = m68k_areg(regs, %s) - areg_byteinc[%s];\n", name, reg, reg); break; - case sz_word: - if (getv) printf("\tWORD %s = get_word(%sa);\n", name, name); - if (!movem) { - start_brace(); - printf("\tm68k_areg(regs, %s) += 2;\n", reg); - } + case sz_word: + printf ("\tuaecptr %sa = m68k_areg(regs, %s) - %d;\n", name, reg, movem ? 0 : 2); break; - case sz_long: - if (getv) printf("\tLONG %s = get_long(%sa);\n", name, name); - if (!movem) { - start_brace(); - printf("\tm68k_areg(regs, %s) += 4;\n", reg); - } + case sz_long: + printf ("\tuaecptr %sa = m68k_areg(regs, %s) - %d;\n", name, reg, movem ? 0 : 4); break; - default: abort(); + default: + abort (); } break; - case Apdi: - switch(size) { - case sz_byte: - if (!movem) printf("\tm68k_areg(regs, %s) -= areg_byteinc[%s];\n", reg, reg); - start_brace(); - printf("\tCPTR %sa = m68k_areg(regs, %s);\n", name, reg); - if (getv) printf("\tBYTE %s = get_byte(%sa);\n", name, name); + case Ad16: + printf ("\tuaecptr %sa = m68k_areg(regs, %s) + (uae_s32)(uae_s16)%s;\n", name, reg, gen_nextiword ()); + break; + case Ad8r: + insn_n_cycles += 2; + if (cpu_level > 1) { + if (next_cpu_level < 1) + next_cpu_level = 1; + sync_m68k_pc (); + start_brace (); + /* This would ordinarily be done in gen_nextiword, which we bypass. */ + insn_n_cycles += 4; + printf ("\tuaecptr %sa = get_disp_ea_020(m68k_areg(regs, %s), next_iword());\n", name, reg); + } else + printf ("\tuaecptr %sa = get_disp_ea_000(m68k_areg(regs, %s), %s);\n", name, reg, gen_nextiword ()); + + break; + case PC16: + printf ("\tuaecptr %sa = m68k_getpc () + %d;\n", name, m68k_pc_offset); + printf ("\t%sa += (uae_s32)(uae_s16)%s;\n", name, gen_nextiword ()); + break; + case PC8r: + insn_n_cycles += 2; + if (cpu_level > 1) { + if (next_cpu_level < 1) + next_cpu_level = 1; + sync_m68k_pc (); + start_brace (); + /* This would ordinarily be done in gen_nextiword, which we bypass. */ + insn_n_cycles += 4; + printf ("\tuaecptr tmppc = m68k_getpc();\n"); + printf ("\tuaecptr %sa = get_disp_ea_020(tmppc, next_iword());\n", name); + } else { + printf ("\tuaecptr tmppc = m68k_getpc() + %d;\n", m68k_pc_offset); + printf ("\tuaecptr %sa = get_disp_ea_000(tmppc, %s);\n", name, gen_nextiword ()); + } + + break; + case absw: + printf ("\tuaecptr %sa = (uae_s32)(uae_s16)%s;\n", name, gen_nextiword ()); + break; + case absl: + printf ("\tuaecptr %sa = %s;\n", name, gen_nextilong ()); + break; + case imm: + if (getv != 1) + abort (); + switch (size) { + case sz_byte: + printf ("\tuae_s8 %s = %s;\n", name, gen_nextibyte ()); break; - case sz_word: - if (!movem) printf("\tm68k_areg(regs, %s) -= 2;\n", reg); - start_brace(); - printf("\tCPTR %sa = m68k_areg(regs, %s);\n", name, reg); - if (getv) printf("\tWORD %s = get_word(%sa);\n", name, name); + case sz_word: + printf ("\tuae_s16 %s = %s;\n", name, gen_nextiword ()); break; - case sz_long: - if (!movem) printf("\tm68k_areg(regs, %s) -= 4;\n", reg); - start_brace(); - printf("\tCPTR %sa = m68k_areg(regs, %s);\n", name, reg); - if (getv) printf("\tLONG %s = get_long(%sa);\n", name, name); + case sz_long: + printf ("\tuae_s32 %s = %s;\n", name, gen_nextilong ()); break; - default: abort(); + default: + abort (); } - break; - case Ad16: - printf("\tCPTR %sa = m68k_areg(regs, %s) + (LONG)(WORD)nextiword();\n", name, reg); - if (getv) - switch(size) { - case sz_byte: - printf("\tBYTE %s = get_byte(%sa);\n", name, name); - break; - case sz_word: - printf("\tWORD %s = get_word(%sa);\n", name, name); - break; - case sz_long: - printf("\tLONG %s = get_long(%sa);\n", name, name); - break; - default: abort(); - } - break; - case Ad8r: - printf("\tCPTR %sa = get_disp_ea(m68k_areg(regs, %s));\n", name, reg); - if (getv) { - start_brace(); - switch(size) { - case sz_byte: - printf("\tBYTE %s = get_byte(%sa);\n", name, name); - break; - case sz_word: - printf("\tWORD %s = get_word(%sa);\n", name, name); - break; - case sz_long: - printf("\tLONG %s = get_long(%sa);\n", name, name); - break; - default: abort(); - } + return; + case imm0: + if (getv != 1) + abort (); + printf ("\tuae_s8 %s = %s;\n", name, gen_nextibyte ()); + return; + case imm1: + if (getv != 1) + abort (); + printf ("\tuae_s16 %s = %s;\n", name, gen_nextiword ()); + return; + case imm2: + if (getv != 1) + abort (); + printf ("\tuae_s32 %s = %s;\n", name, gen_nextilong ()); + return; + case immi: + if (getv != 1) + abort (); + printf ("\tuae_u32 %s = %s;\n", name, reg); + return; + default: + abort (); + } + + /* We get here for all non-reg non-immediate addressing modes to + * actually fetch the value. */ + + if (using_exception_3 && getv != 0 && size != sz_byte) { + printf ("\tif ((%sa & 1) != 0) {\n", name); + printf ("\t\tlast_fault_for_exception_3 = %sa;\n", name); + printf ("\t\tlast_op_for_exception_3 = opcode;\n"); + printf ("\t\tlast_addr_for_exception_3 = m68k_getpc() + %d;\n", m68k_pc_offset); + printf ("\t\tException(3, 0);\n"); + printf ("\t\tgoto %s;\n", endlabelstr); + printf ("\t}\n"); + need_endlabel = 1; + start_brace (); + } + + if (getv == 1) { + switch (size) { + case sz_byte: insn_n_cycles += 4; break; + case sz_word: insn_n_cycles += 4; break; + case sz_long: insn_n_cycles += 8; break; + default: abort (); } - break; - case PC16: - printf("\tCPTR %sa = m68k_getpc();\n", name); - printf("\t%sa += (LONG)(WORD)nextiword();\n", name); - if (getv) { - start_brace(); - switch(size) { - case sz_byte: - printf("\tBYTE %s = get_byte(%sa);\n", name, name); - break; - case sz_word: - printf("\tWORD %s = get_word(%sa);\n", name, name); - break; - case sz_long: - printf("\tLONG %s = get_long(%sa);\n", name, name); - break; - default: abort(); - } + start_brace (); + switch (size) { + case sz_byte: printf ("\tuae_s8 %s = get_byte(%sa);\n", name, name); break; + case sz_word: printf ("\tuae_s16 %s = get_word(%sa);\n", name, name); break; + case sz_long: printf ("\tuae_s32 %s = get_long(%sa);\n", name, name); break; + default: abort (); } - break; - case PC8r: - printf("\tCPTR %sa = get_disp_ea(m68k_getpc());\n",name); - if (getv) { - start_brace(); - switch(size) { - case sz_byte: - printf("\tBYTE %s = get_byte(%sa);\n", name, name); + } + + /* We now might have to fix up the register for pre-dec or post-inc + * addressing modes. */ + if (!movem) + switch (mode) { + case Aipi: + switch (size) { + case sz_byte: + printf ("\tm68k_areg(regs, %s) += areg_byteinc[%s];\n", reg, reg); break; - case sz_word: - printf("\tWORD %s = get_word(%sa);\n", name, name); + case sz_word: + printf ("\tm68k_areg(regs, %s) += 2;\n", reg); break; - case sz_long: - printf("\tLONG %s = get_long(%sa);\n", name, name); + case sz_long: + printf ("\tm68k_areg(regs, %s) += 4;\n", reg); break; - default: abort(); + default: + abort (); } + break; + case Apdi: + printf ("\tm68k_areg (regs, %s) = %sa;\n", reg, name); + break; + default: + break; } - break; - case absw: - printf("\tCPTR %sa = (LONG)(WORD)nextiword();\n", name); - if (getv) - switch(size) { - case sz_byte: - printf("\tBYTE %s = get_byte(%sa);\n", name, name); - break; - case sz_word: - printf("\tWORD %s = get_word(%sa);\n", name, name); - break; - case sz_long: - printf("\tLONG %s = get_long(%sa);\n", name, name); - break; - default: abort(); - } - break; - case absl: - printf("\tCPTR %sa = nextilong();\n", name); - if (getv) - switch(size) { - case sz_byte: - printf("\tBYTE %s = get_byte(%sa);\n", name, name); - break; - case sz_word: - printf("\tWORD %s = get_word(%sa);\n", name, name); - break; - case sz_long: - printf("\tLONG %s = get_long(%sa);\n", name, name); - break; - default: abort(); - } - break; - case imm: - if (getv) - switch(size) { - case sz_byte: - printf("\tBYTE %s = nextibyte();\n", name); - break; - case sz_word: - printf("\tWORD %s = nextiword();\n", name); - break; - case sz_long: - printf("\tLONG %s = nextilong();\n", name); - break; - default: abort(); - } - break; - case imm0: - if (!getv) abort(); - printf("\tBYTE %s = nextibyte();\n", name); - break; - case imm1: - if (!getv) abort(); - printf("\tWORD %s = nextiword();\n", name); - break; - case imm2: - if (!getv) abort(); - printf("\tLONG %s = nextilong();\n", name); - break; - case immi: - if (!getv) abort(); - printf("\tULONG %s = %s;\n", name, reg); - break; - default: - abort(); - } } -static void genastore(char *from, amodes mode, char *reg, wordsizes size, char *to) +static void genastore (char *from, amodes mode, char *reg, wordsizes size, char *to) { - switch(mode) { + switch (mode) { case Dreg: - switch(size) { + switch (size) { case sz_byte: - printf("\tm68k_dreg(regs, %s) = (m68k_dreg(regs, %s) & ~0xff) | ((%s) & 0xff);\n", reg, reg, from); + printf ("\tm68k_dreg(regs, %s) = (m68k_dreg(regs, %s) & ~0xff) | ((%s) & 0xff);\n", reg, reg, from); break; case sz_word: - printf("\tm68k_dreg(regs, %s) = (m68k_dreg(regs, %s) & ~0xffff) | ((%s) & 0xffff);\n", reg, reg, from); + printf ("\tm68k_dreg(regs, %s) = (m68k_dreg(regs, %s) & ~0xffff) | ((%s) & 0xffff);\n", reg, reg, from); break; case sz_long: - printf("\tm68k_dreg(regs, %s) = (%s);\n", reg, from); + printf ("\tm68k_dreg(regs, %s) = (%s);\n", reg, from); break; - default: abort(); + default: + abort (); } break; case Areg: - switch(size) { + switch (size) { case sz_word: - fprintf(stderr, "Foo\n"); - printf("\tm68k_areg(regs, %s) = (LONG)(WORD)(%s);\n", reg, from); + fprintf (stderr, "Foo\n"); + printf ("\tm68k_areg(regs, %s) = (uae_s32)(uae_s16)(%s);\n", reg, from); break; case sz_long: - printf("\tm68k_areg(regs, %s) = (%s);\n", reg, from); + printf ("\tm68k_areg(regs, %s) = (%s);\n", reg, from); break; - default: abort(); + default: + abort (); } break; case Aind: @@ -400,36 +465,29 @@ static void genastore(char *from, amodes case Ad8r: case absw: case absl: - switch(size) { - case sz_byte: - printf("\tput_byte(%sa,%s);\n", to, from); - break; - case sz_word: - printf("\tput_word(%sa,%s);\n", to, from); - break; - case sz_long: - printf("\tput_long(%sa,%s);\n", to, from); - break; - default: abort(); - } - break; case PC16: case PC8r: - switch(size) { + if (using_prefetch) + sync_m68k_pc (); + switch (size) { case sz_byte: - printf("\tput_byte(%sa,%s);\n", to, from); + insn_n_cycles += 4; + printf ("\tput_byte(%sa,%s);\n", to, from); break; case sz_word: - if (CPU_LEVEL < 2) - abort(); - printf("\tput_word(%sa,%s);\n", to, from); + insn_n_cycles += 4; + if (cpu_level < 2 && (mode == PC16 || mode == PC8r)) + abort (); + printf ("\tput_word(%sa,%s);\n", to, from); break; case sz_long: - if (CPU_LEVEL < 2) - abort(); - printf("\tput_long(%sa,%s);\n", to, from); + insn_n_cycles += 8; + if (cpu_level < 2 && (mode == PC16 || mode == PC8r)) + abort (); + printf ("\tput_long(%sa,%s);\n", to, from); break; - default: abort(); + default: + abort (); } break; case imm: @@ -437,111 +495,130 @@ static void genastore(char *from, amodes case imm1: case imm2: case immi: - abort(); + abort (); break; - default: - abort(); + default: + abort (); } } -static void genmovemel(UWORD opcode) +static void genmovemel (uae_u16 opcode) { char getcode[100]; int size = table68k[opcode].size == sz_long ? 4 : 2; - - if (table68k[opcode].size == sz_long) { - strcpy(getcode, "get_long(srca)"); - } else { - strcpy(getcode, "(LONG)(WORD)get_word(srca)"); + + if (table68k[opcode].size == sz_long) { + strcpy (getcode, "get_long(srca)"); + } else { + strcpy (getcode, "(uae_s32)(uae_s16)get_word(srca)"); } - - printf("\tUWORD mask = nextiword(), dmask = mask & 0xff, amask = (mask >> 8) & 0xff;\n"); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "src", 0, 1); - start_brace(); - printf("\twhile (dmask) { m68k_dreg(regs, movem_index1[dmask]) = %s; srca += %d; dmask = movem_next[dmask]; }\n", - getcode, size); - printf("\twhile (amask) { m68k_areg(regs, movem_index1[amask]) = %s; srca += %d; amask = movem_next[amask]; }\n", - getcode, size); + + printf ("\tuae_u16 mask = %s;\n", gen_nextiword ()); + printf ("\tunsigned int dmask = mask & 0xff, amask = (mask >> 8) & 0xff;\n"); + genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "src", 2, 1); + start_brace (); + printf ("\twhile (dmask) { m68k_dreg(regs, movem_index1[dmask]) = %s; srca += %d; dmask = movem_next[dmask]; }\n", + getcode, size); + printf ("\twhile (amask) { m68k_areg(regs, movem_index1[amask]) = %s; srca += %d; amask = movem_next[amask]; }\n", + getcode, size); if (table68k[opcode].dmode == Aipi) - printf("\tm68k_areg(regs, dstreg) = srca;\n"); + printf ("\tm68k_areg(regs, dstreg) = srca;\n"); } -static void genmovemle(UWORD opcode) +static void genmovemle (uae_u16 opcode) { char putcode[100]; int size = table68k[opcode].size == sz_long ? 4 : 2; if (table68k[opcode].size == sz_long) { - strcpy(putcode, "put_long(srca,"); - } else { - strcpy(putcode, "put_word(srca,"); + strcpy (putcode, "put_long(srca,"); + } else { + strcpy (putcode, "put_word(srca,"); } - - printf("\tUWORD mask = nextiword();\n"); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "src", 0, 1); - start_brace(); + + printf ("\tuae_u16 mask = %s;\n", gen_nextiword ()); + genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "src", 2, 1); + if (using_prefetch) + sync_m68k_pc (); + + start_brace (); if (table68k[opcode].dmode == Apdi) { - printf("\tUWORD amask = mask & 0xff, dmask = (mask >> 8) & 0xff;\n"); - printf("\twhile (amask) { srca -= %d; %s m68k_areg(regs, movem_index2[amask])); amask = movem_next[amask]; }\n", - size, putcode); - printf("\twhile (dmask) { srca -= %d; %s m68k_dreg(regs, movem_index2[dmask])); dmask = movem_next[dmask]; }\n", - size, putcode); - printf("\tm68k_areg(regs, dstreg) = srca;\n"); + printf ("\tuae_u16 amask = mask & 0xff, dmask = (mask >> 8) & 0xff;\n"); + printf ("\twhile (amask) { srca -= %d; %s m68k_areg(regs, movem_index2[amask])); amask = movem_next[amask]; }\n", + size, putcode); + printf ("\twhile (dmask) { srca -= %d; %s m68k_dreg(regs, movem_index2[dmask])); dmask = movem_next[dmask]; }\n", + size, putcode); + printf ("\tm68k_areg(regs, dstreg) = srca;\n"); } else { - printf("\tUWORD dmask = mask & 0xff, amask = (mask >> 8) & 0xff;\n"); - printf("\twhile (dmask) { %s m68k_dreg(regs, movem_index1[dmask])); srca += %d; dmask = movem_next[dmask]; }\n", - putcode, size); - printf("\twhile (amask) { %s m68k_areg(regs, movem_index1[amask])); srca += %d; amask = movem_next[amask]; }\n", - putcode, size); + printf ("\tuae_u16 dmask = mask & 0xff, amask = (mask >> 8) & 0xff;\n"); + printf ("\twhile (dmask) { %s m68k_dreg(regs, movem_index1[dmask])); srca += %d; dmask = movem_next[dmask]; }\n", + putcode, size); + printf ("\twhile (amask) { %s m68k_areg(regs, movem_index1[amask])); srca += %d; amask = movem_next[amask]; }\n", + putcode, size); } } -typedef enum { - flag_logical, flag_add, flag_sub, flag_cmp, flag_addx, flag_subx, flag_zn, - flag_av, flag_sv -} flagtypes; +static void duplicate_carry (void) +{ + printf ("\tCOPY_CARRY;\n"); +} + +typedef enum +{ + flag_logical_noclobber, flag_logical, flag_add, flag_sub, flag_cmp, flag_addx, flag_subx, flag_zn, + flag_av, flag_sv +} +flagtypes; -static void genflags_normal(flagtypes type, wordsizes size, char *value, char *src, char *dst) +static void genflags_normal (flagtypes type, wordsizes size, char *value, char *src, char *dst) { - char vstr[100],sstr[100],dstr[100]; - char usstr[100],udstr[100]; - char unsstr[100],undstr[100]; + char vstr[100], sstr[100], dstr[100]; + char usstr[100], udstr[100]; + char unsstr[100], undstr[100]; - switch(size) { + switch (size) { case sz_byte: - strcpy(vstr, "((BYTE)("); - strcpy(usstr, "((UBYTE)("); + strcpy (vstr, "((uae_s8)("); + strcpy (usstr, "((uae_u8)("); break; case sz_word: - strcpy(vstr, "((WORD)("); - strcpy(usstr, "((UWORD)("); + strcpy (vstr, "((uae_s16)("); + strcpy (usstr, "((uae_u16)("); break; case sz_long: - strcpy(vstr, "((LONG)("); - strcpy(usstr, "((ULONG)("); + strcpy (vstr, "((uae_s32)("); + strcpy (usstr, "((uae_u32)("); break; default: - abort(); + abort (); } - strcpy(unsstr, usstr); + strcpy (unsstr, usstr); - strcpy(sstr, vstr); - strcpy(dstr, vstr); - strcat(vstr, value); strcat(vstr,"))"); - strcat(dstr, dst); strcat(dstr,"))"); - strcat(sstr, src); strcat(sstr,"))"); - - strcpy(udstr, usstr); - strcat(udstr, dst); strcat(udstr,"))"); - strcat(usstr, src); strcat(usstr,"))"); - - strcpy(undstr, unsstr); - strcat(unsstr, "-"); - strcat(undstr, "~"); - strcat(undstr, dst); strcat(undstr,"))"); - strcat(unsstr, src); strcat(unsstr,"))"); + strcpy (sstr, vstr); + strcpy (dstr, vstr); + strcat (vstr, value); + strcat (vstr, "))"); + strcat (dstr, dst); + strcat (dstr, "))"); + strcat (sstr, src); + strcat (sstr, "))"); + + strcpy (udstr, usstr); + strcat (udstr, dst); + strcat (udstr, "))"); + strcat (usstr, src); + strcat (usstr, "))"); + + strcpy (undstr, unsstr); + strcat (unsstr, "-"); + strcat (undstr, "~"); + strcat (undstr, dst); + strcat (undstr, "))"); + strcat (unsstr, src); + strcat (unsstr, "))"); switch (type) { + case flag_logical_noclobber: case flag_logical: case flag_zn: case flag_av: @@ -549,24 +626,24 @@ static void genflags_normal(flagtypes ty case flag_addx: case flag_subx: break; - + case flag_add: - start_brace(); - printf("ULONG %s = %s + %s;\n", value, dstr, sstr); + start_brace (); + printf ("uae_u32 %s = %s + %s;\n", value, dstr, sstr); break; case flag_sub: case flag_cmp: - start_brace(); - printf("ULONG %s = %s - %s;\n", value, dstr, sstr); + start_brace (); + printf ("uae_u32 %s = %s - %s;\n", value, dstr, sstr); break; } - switch (type) { + case flag_logical_noclobber: case flag_logical: case flag_zn: break; - + case flag_add: case flag_sub: case flag_addx: @@ -574,1870 +651,1733 @@ static void genflags_normal(flagtypes ty case flag_cmp: case flag_av: case flag_sv: - start_brace(); - printf("\t"BOOL_TYPE" flgs = %s < 0;\n", sstr); - printf("\t"BOOL_TYPE" flgo = %s < 0;\n", dstr); - printf("\t"BOOL_TYPE" flgn = %s < 0;\n", vstr); + start_brace (); + printf ("\t" BOOL_TYPE " flgs = %s < 0;\n", sstr); + printf ("\t" BOOL_TYPE " flgo = %s < 0;\n", dstr); + printf ("\t" BOOL_TYPE " flgn = %s < 0;\n", vstr); break; } - - switch(type) { + + switch (type) { case flag_logical: - printf("\tVFLG = CFLG = 0;\n"); - printf("\tZFLG = %s == 0;\n", vstr); - printf("\tNFLG = %s < 0;\n", vstr); + printf ("\tCLEAR_CZNV;\n"); + printf ("\tSET_ZFLG (%s == 0);\n", vstr); + printf ("\tSET_NFLG (%s < 0);\n", vstr); + break; + case flag_logical_noclobber: + printf ("\tSET_ZFLG (%s == 0);\n", vstr); + printf ("\tSET_NFLG (%s < 0);\n", vstr); break; case flag_av: - printf("\tVFLG = (flgs == flgo) && (flgn != flgo);\n"); + printf ("\tSET_VFLG ((flgs ^ flgn) & (flgo ^ flgn));\n"); break; case flag_sv: - printf("\tVFLG = (flgs != flgo) && (flgn != flgo);\n"); + printf ("\tSET_VFLG ((flgs ^ flgo) & (flgn ^ flgo));\n"); break; case flag_zn: - printf("\tif (%s != 0) ZFLG = 0;\n", vstr); - printf("\tNFLG = %s < 0;\n", vstr); + printf ("\tSET_ZFLG (GET_ZFLG & (%s == 0));\n", vstr); + printf ("\tSET_NFLG (%s < 0);\n", vstr); break; case flag_add: - printf("\tZFLG = %s == 0;\n", vstr); - printf("\tVFLG = (flgs == flgo) && (flgn != flgo);\n"); - printf("\tCFLG = XFLG = %s < %s;\n", undstr, usstr); - printf("\tNFLG = flgn != 0;\n"); + printf ("\tSET_ZFLG (%s == 0);\n", vstr); + printf ("\tSET_VFLG ((flgs ^ flgn) & (flgo ^ flgn));\n"); + printf ("\tSET_CFLG (%s < %s);\n", undstr, usstr); + duplicate_carry (); + printf ("\tSET_NFLG (flgn != 0);\n"); break; case flag_sub: - printf("\tZFLG = %s == 0;\n", vstr); - printf("\tVFLG = (flgs != flgo) && (flgn != flgo);\n"); - printf("\tCFLG = XFLG = %s > %s;\n", usstr, udstr); - printf("\tNFLG = flgn != 0;\n"); + printf ("\tSET_ZFLG (%s == 0);\n", vstr); + printf ("\tSET_VFLG ((flgs ^ flgo) & (flgn ^ flgo));\n"); + printf ("\tSET_CFLG (%s > %s);\n", usstr, udstr); + duplicate_carry (); + printf ("\tSET_NFLG (flgn != 0);\n"); break; case flag_addx: - printf("\tVFLG = (flgs && flgo && !flgn) || (!flgs && !flgo && flgn);\n"); - printf("\tXFLG = CFLG = (flgs && flgo) || (!flgn && (flgo || flgs));\n"); + printf ("\tSET_VFLG ((flgs ^ flgn) & (flgo ^ flgn));\n"); /* minterm SON: 0x42 */ + printf ("\tSET_CFLG (flgs ^ ((flgs ^ flgo) & (flgo ^ flgn)));\n"); /* minterm SON: 0xD4 */ + duplicate_carry (); break; case flag_subx: - printf("\tVFLG = (!flgs && flgo && !flgn) || (flgs && !flgo && flgn);\n"); - printf("\tXFLG = CFLG = (flgs && !flgo) || (flgn && (!flgo || flgs));\n"); + printf ("\tSET_VFLG ((flgs ^ flgo) & (flgo ^ flgn));\n"); /* minterm SON: 0x24 */ + printf ("\tSET_CFLG (flgs ^ ((flgs ^ flgn) & (flgo ^ flgn)));\n"); /* minterm SON: 0xB2 */ + duplicate_carry (); break; case flag_cmp: - printf("\tZFLG = %s == 0;\n", vstr); - printf("\tVFLG = (flgs != flgo) && (flgn != flgo);\n"); - printf("\tCFLG = %s > %s;\n", usstr, udstr); - printf("\tNFLG = flgn != 0;\n"); + printf ("\tSET_ZFLG (%s == 0);\n", vstr); + printf ("\tSET_VFLG ((flgs != flgo) && (flgn != flgo));\n"); + printf ("\tSET_CFLG (%s > %s);\n", usstr, udstr); + printf ("\tSET_NFLG (flgn != 0);\n"); break; } } -static void genflags(flagtypes type, wordsizes size, char *value, char *src, char *dst) +static void genflags (flagtypes type, wordsizes size, char *value, char *src, char *dst) { -#ifdef INTEL_FLAG_OPT - start_brace(); - printf("\tULONG scratch = 0;\n"); + /* Temporarily deleted 68k/ARM flag optimizations. I'd prefer to have + them in the appropriate m68k.h files and use just one copy of this + code here. The API can be changed if necessary. */ +#ifdef OPTIMIZED_FLAGS switch (type) { - case flag_logical: - case flag_av: - case flag_sv: - case flag_zn: - case flag_addx: - case flag_subx: - case flag_cmp: - break; - case flag_add: case flag_sub: - start_brace(); - printf("\tULONG %s;\n", value); + start_brace (); + printf ("\tuae_u32 %s;\n", value); break; - } - switch(type) { - case flag_av: - case flag_sv: - case flag_zn: - case flag_addx: - case flag_subx: + default: break; + } - case flag_logical: - if (strcmp(value, "0") == 0) { - printf("\t*(ULONG *)®flags = 64;\n"); + /* At least some of those casts are fairly important! */ + switch (type) { + case flag_logical_noclobber: + printf ("\t{uae_u32 oldcznv = GET_CZNV & ~(FLAGVAL_Z | FLAGVAL_N);\n"); + if (strcmp (value, "0") == 0) { + printf ("\tSET_CZNV (olcznv | FLAGVAL_Z);\n"); } else { - switch(size) { - case sz_byte: - printf("\t__asm__ __volatile__(\"testb %%b1,%%b1\\n\\tpushfl\\n\\tpopl %%0\\n\\tmovl %%0,regflags\\n\"" - ": \"=r\" (scratch) : \"q\" (%s) :\"cc\");", value); - break; - case sz_word: - printf("\t__asm__ __volatile__(\"testw %%w1,%%w1\\n\\tpushfl\\n\\tpopl %%0\\n\\tmovl %%0,regflags\\n\"" - ": \"=r\" (scratch) : \"r\" (%s) : \"cc\");", value); - break; - case sz_long: - printf("\t__asm__ __volatile__(\"testl %%1,%%1\\n\\tpushfl\\n\\tpopl %%0\\n\\tmovl %%0,regflags\\n\"" - ": \"=r\" (scratch) : \"r\" (%s) : \"cc\");", value); - - break; + switch (size) { + case sz_byte: printf ("\toptflag_testb ((uae_s8)(%s));\n", value); break; + case sz_word: printf ("\toptflag_testw ((uae_s16)(%s));\n", value); break; + case sz_long: printf ("\toptflag_testl ((uae_s32)(%s));\n", value); break; } + printf ("\tIOR_CZNV (oldcznv);\n"); } + printf ("\t}\n"); return; - - case flag_add: - switch (size) { - case sz_byte: - printf("\t__asm__ __volatile__(\"addb %%b3,%%b0\\n\\tpushfl\\n\\tpopl %%1\\n\\tmovl %%1,regflags\\n\\tmovl %%1,regflags+4\\n\"" - ": \"=&q\" (%s) : \"r\" (scratch), " - " \"0\" ((BYTE)(%s)), \"qm\" ((BYTE)(%s)) : \"cc\");", - value, src, dst); - break; - case sz_word: - printf("\t__asm__ __volatile__(\"addw %%w3,%%w0\\n\\tpushfl\\n\\tpopl %%1\\n\\tmovl %%1,regflags\\n\\tmovl %%1,regflags+4\\n\"" - ": \"=&r\" (%s) : \"r\" (scratch), " - " \"0\" ((WORD)(%s)), \"rmi\" ((WORD)(%s)) : \"cc\");", - value, src, dst); - break; - case sz_long: - printf("\t__asm__ __volatile__(\"addl %%3,%%0\\n\\tpushfl\\n\\tpopl %%1\\n\\tmovl %%1,regflags\\n\\tmovl %%1,regflags+4\\n\"" - ": \"=&r\" (%s) : \"r\" (scratch), " - " \"0\" ((LONG)(%s)), \"rmi\" ((LONG)(%s)) : \"cc\");", - value, src, dst); - break; - } - return; - - case flag_sub: - switch (size) { - case sz_byte: - printf("\t__asm__ __volatile__(\"subb %%b2,%%b0\\n\\tpushfl\\n\\tpopl %%1\\n\\tmovl %%1,regflags\\n\\tmovl %%1,regflags+4\\n\"" - ": \"=&q\" (%s) : \"r\" (scratch), " - " \"qmi\" ((BYTE)(%s)), \"0\" ((BYTE)(%s)) : \"cc\");", - value, src, dst); - break; - case sz_word: - printf("\t__asm__ __volatile__(\"subw %%w2,%%w0\\n\\tpushfl\\n\\tpopl %%1\\n\\tmovl %%1,regflags\\n\\tmovl %%1,regflags+4\\n\"" - ": \"=&r\" (%s) : \"r\" (scratch), " - " \"rmi\" ((WORD)(%s)), \"0\" ((WORD)(%s)) : \"cc\");", - value, src, dst); - break; - case sz_long: - printf("\t__asm__ __volatile__(\"subl %%2,%%0\\n\\tpushfl\\n\\tpopl %%1\\n\\tmovl %%1,regflags\\n\\tmovl %%1,regflags+4\\n\"" - ": \"=&r\" (%s) : \"r\" (scratch), " - " \"rmi\" ((LONG)(%s)), \"0\" ((LONG)(%s)) : \"cc\");", - value, src, dst); - break; - } - return; - - case flag_cmp: - switch (size) { - case sz_byte: - printf("\t__asm__ __volatile__(\"cmpb %%b1,%%b2\\n\\tpushfl\\n\\tpopl %%0\\n\\tmovl %%0,regflags\\n\"" - ": : \"r\" (scratch), " - " \"qmi\" ((BYTE)(%s)), \"q\" ((BYTE)(%s)) : \"cc\");", - src, dst); - break; - case sz_word: - printf("\t__asm__ __volatile__(\"cmpw %%w1,%%w2\\n\\tpushfl\\n\\tpopl %%0\\n\\tmovl %%0,regflags\\n\"" - ": : \"r\" (scratch), " - " \"rmi\" ((WORD)(%s)), \"r\" ((WORD)(%s)) : \"cc\");", - src, dst); - break; - case sz_long: - printf("\t__asm__ __volatile__(\"cmpl %%1,%%2\\n\\tpushfl\\n\\tpopl %%0\\n\\tmovl %%0,regflags\\n\"" - ": : \"r\" (scratch), " - " \"rmi\" ((LONG)(%s)), \"r\" ((LONG)(%s)) : \"cc\");", - src, dst); - break; - } - return; - } -#elif defined(M68K_FLAG_OPT) -/* - * sam: This is different from 0.6.3. Might be buggy! - */ - switch (type) { case flag_logical: - case flag_av: - case flag_sv: - case flag_zn: - case flag_addx: - case flag_subx: - break; - - case flag_add: - case flag_sub: - case flag_cmp: - start_brace(); - printf("\tULONG %s;\n", value); - break; - } - - switch(type) { - case flag_av: - case flag_sv: - case flag_zn: - case flag_addx: - case flag_subx: - /* normal code: genflags_normal() */ - break; - - case flag_logical: - if (strcmp(value, "0") == 0) { - /* v=c=n=0 z=1 */ - printf("\t*(UWORD*)®flags = 4;\n"); + if (strcmp (value, "0") == 0) { + printf ("\tSET_CZNV (FLAGVAL_Z);\n"); } else { - printf("\t{\n"); - switch(size) { - case sz_byte: - printf("\t__asm__(\"tstb %%0\\n\\tmovw ccr,_regflags\"" - ": " - ": \"dmi\" ((BYTE)(%s)) : \"cc\");\n",value); - break; - case sz_word: - printf("\t__asm__(\"tstw %%0\\n\\tmovw ccr,_regflags\"" - ": " - ": \"dmi\" ((WORD)(%s)) : \"cc\");\n",value); - break; - case sz_long: - printf("\t__asm__(\"tstl %%0\\n\\tmovw ccr,_regflags\"" - ": " - ": \"dmi\" ((LONG)(%s)) : \"cc\");\n",value); - break; + switch (size) { + case sz_byte: printf ("\toptflag_testb ((uae_s8)(%s));\n", value); break; + case sz_word: printf ("\toptflag_testw ((uae_s16)(%s));\n", value); break; + case sz_long: printf ("\toptflag_testl ((uae_s32)(%s));\n", value); break; } - printf("\t}\n"); } return; case flag_add: - printf("\t{UWORD ccr;\n"); switch (size) { - case sz_byte: - printf("\t__asm__(\"addb %%3,%%1\\n\\tmovw ccr,%%0\"" - ": \"=d\" (ccr), \"=&d\" ((BYTE)(%s))" - ": \"1\" ((BYTE)(%s)), \"dmi\" ((BYTE)(%s)) : \"cc\");\n", - value, src, dst); - break; - case sz_word: - printf("\t__asm__(\"addw %%3,%%1\\n\\tmovw ccr,%%0\"" - ": \"=d\" (ccr), \"=&d\" ((WORD)(%s))" - ": \"1\" ((WORD)(%s)), \"dmi\" ((WORD)(%s)) : \"cc\");\n", - value, src, dst); - break; - case sz_long: - printf("\t__asm__(\"addl %%3,%%1\\n\\tmovw ccr,%%0\"" - ": \"=d\" (ccr), \"=&d\" ((LONG)(%s))" - ": \"1\" ((LONG)(%s)), \"dmi\" ((LONG)(%s)) : \"cc\");\n", - value, src, dst); - break; + case sz_byte: printf ("\toptflag_addb (%s, (uae_s8)(%s), (uae_s8)(%s));\n", value, src, dst); break; + case sz_word: printf ("\toptflag_addw (%s, (uae_s16)(%s), (uae_s16)(%s));\n", value, src, dst); break; + case sz_long: printf ("\toptflag_addl (%s, (uae_s32)(%s), (uae_s32)(%s));\n", value, src, dst); break; } - printf("\t((UWORD*)®flags)[1] = ((UWORD*)®flags)[0] = ccr;}\n"); return; case flag_sub: - printf("\t{UWORD ccr;\n"); switch (size) { - case sz_byte: - if(strcmp(dst,"0")!=0) - printf("\t__asm__(\"subb %%2,%%1\\n\\tmovw ccr,%%0\"" - ": \"=d\" (ccr), \"=&d\" ((BYTE)(%s)) " - ": \"dmi\" ((BYTE)(%s)), \"1\" ((BYTE)(%s)) : \"cc\");\n", - value, src, dst); - else - printf("\t__asm__(\"negb %%1\\n\\tmovw ccr,%%0\"" - ": \"=d\" (ccr), \"=&d\" ((BYTE)(%s)) " - ": \"1\" ((BYTE)(%s)) : \"cc\");\n", - value, src); - break; - case sz_word: - if(strcmp(dst,"0")!=0) - printf("\t__asm__(\"subw %%2,%%1\\n\\tmovw ccr,%%0\"" - ": \"=d\" (ccr), \"=&d\" ((WORD)(%s)) " - ": \"dmi\" ((WORD)(%s)), \"1\" ((WORD)(%s)) : \"cc\");\n", - value, src, dst); - else - printf("\t__asm__(\"negw %%1\\n\\tmovw ccr,%%0\"" - ": \"=d\" (ccr), \"=&d\" ((WORD)(%s)) " - ": \"1\" ((WORD)(%s)) : \"cc\");\n", - value, src); - break; - case sz_long: - if(strcmp(dst,"0")!=0) - printf("\t__asm__(\"subl %%2,%%1\\n\\tmovw ccr,%%0\"" - ": \"=d\" (ccr), \"=&d\" ((LONG)(%s)) " - ": \"dmi\" ((LONG)(%s)), \"1\" ((LONG)(%s)) : \"cc\");\n", - value, src, dst); - else - printf("\t__asm__(\"negl %%1\\n\\tmovw ccr,%%0\"" - ": \"=d\" (ccr), \"=&d\" ((LONG)(%s)) " - ": \"1\" ((LONG)(%s)) : \"cc\");\n", - value, src); - break; + case sz_byte: printf ("\toptflag_subb (%s, (uae_s8)(%s), (uae_s8)(%s));\n", value, src, dst); break; + case sz_word: printf ("\toptflag_subw (%s, (uae_s16)(%s), (uae_s16)(%s));\n", value, src, dst); break; + case sz_long: printf ("\toptflag_subl (%s, (uae_s32)(%s), (uae_s32)(%s));\n", value, src, dst); break; } - printf("\t((UWORD*)®flags)[1] = ((UWORD*)®flags)[0] = ccr;}\n"); return; case flag_cmp: - printf("\t{\n"); switch (size) { - case sz_byte: - printf("\t__asm__(\"cmpb %%0,%%1\\n\\tmovw ccr,_regflags\"" - ": " - ": \"dmi\" ((BYTE)(%s)), \"d\" ((BYTE)(%s)) : \"cc\");\n", - src, dst); - break; - case sz_word: - printf("\t__asm__(\"cmpw %%0,%%1\\n\\tmovw ccr,_regflags\"" - ": " - ": \"dmi\" ((WORD)(%s)), \"d\" ((WORD)(%s)) : \"cc\");\n", - src, dst); - break; - case sz_long: - printf("\t__asm__(\"cmpl %%0,%%1\\n\\tmovw ccr,_regflags\"" - ": " - ": \"dmi\" ((LONG)(%s)), \"d\" ((LONG)(%s)) : \"cc\");\n", - src, dst); - break; + case sz_byte: printf ("\toptflag_cmpb ((uae_s8)(%s), (uae_s8)(%s));\n", src, dst); break; + case sz_word: printf ("\toptflag_cmpw ((uae_s16)(%s), (uae_s16)(%s));\n", src, dst); break; + case sz_long: printf ("\toptflag_cmpl ((uae_s32)(%s), (uae_s32)(%s));\n", src, dst); break; } - printf("\t}\n"); return; + + default: + break; } #endif - genflags_normal(type, size, value, src, dst); + + genflags_normal (type, size, value, src, dst); } -static void gen_opcode(unsigned long int opcode) + +static void force_range_for_rox (const char *var, wordsizes size) { - start_brace (); - switch (table68k[opcode].plev) { - case 0: /* not priviledged */ + /* Could do a modulo operation here... which one is faster? */ + switch (size) { + case sz_long: + printf ("\tif (%s >= 33) %s -= 33;\n", var, var); break; - case 1: /* unpriviledged only on 68000 */ - if (CPU_LEVEL == 0) - break; - /* FALLTHROUGH */ - case 2: /* priviledged */ -#ifdef USE_POINTER - printf("if (!regs.s) { regs.pc_p -= 2; Exception(8,0); } else\n"); -#else - printf("if (!regs.s) { regs.pc -= 2; Exception(8,0); } else\n"); -#endif - start_brace(); + case sz_word: + printf ("\tif (%s >= 34) %s -= 34;\n", var, var); + printf ("\tif (%s >= 17) %s -= 17;\n", var, var); break; - case 3: /* priviledged if size == word */ - if (table68k[opcode].size == sz_byte) - break; -#ifdef USE_POINTER - printf("if (!regs.s) { regs.pc_p -= 2; Exception(8,0); } else\n"); -#else - printf("if (!regs.s) { regs.pc -= 2; Exception(8,0); } else\n"); -#endif - start_brace(); + case sz_byte: + printf ("\tif (%s >= 36) %s -= 36;\n", var, var); + printf ("\tif (%s >= 18) %s -= 18;\n", var, var); + printf ("\tif (%s >= 9) %s -= 9;\n", var, var); break; } - switch(table68k[opcode].mnemo) { - case i_OR: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0); - printf("\tsrc |= dst;\n"); - genflags(flag_logical, table68k[opcode].size, "src", "", ""); - genastore("src", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst"); - break; - case i_AND: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0); - printf("\tsrc &= dst;\n"); - genflags(flag_logical, table68k[opcode].size, "src", "", ""); - genastore("src", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst"); - break; - case i_EOR: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0); - printf("\tsrc ^= dst;\n"); - genflags(flag_logical, table68k[opcode].size, "src", "", ""); - genastore("src", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst"); - break; - case i_ORSR: - printf("\tMakeSR();\n"); - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - if (table68k[opcode].size == sz_byte) { - printf("\tsrc &= 0xFF;\n"); - } - printf("\tregs.sr |= src;\n"); - printf("\tMakeFromSR();\n"); - break; - case i_ANDSR: - printf("\tMakeSR();\n"); - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - if (table68k[opcode].size == sz_byte) { - printf("\tsrc |= 0xFF00;\n"); - } - printf("\tregs.sr &= src;\n"); - printf("\tMakeFromSR();\n"); - break; - case i_EORSR: - printf("\tMakeSR();\n"); - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - if (table68k[opcode].size == sz_byte) { - printf("\tsrc &= 0xFF;\n"); - } - printf("\tregs.sr ^= src;\n"); - printf("\tMakeFromSR();\n"); - break; - case i_SUB: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0); - start_brace (); - genflags(flag_sub, table68k[opcode].size, "newv", "src", "dst"); - genastore("newv", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst"); - break; - case i_SUBA: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", sz_long, "dst", 1, 0); - start_brace (); - printf("\tULONG newv = dst - src;\n"); - genastore("newv", table68k[opcode].dmode, "dstreg", sz_long, "dst"); - break; - case i_SUBX: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0); - start_brace (); - printf("\tULONG newv = dst - src - (XFLG ? 1 : 0);\n"); - genflags(flag_subx, table68k[opcode].size, "newv", "src", "dst"); - genflags(flag_zn, table68k[opcode].size, "newv", "", ""); - genastore("newv", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst"); - break; - case i_SBCD: - /* Let's hope this works... */ - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0); - start_brace (); - printf("\tUWORD newv_lo = (dst & 0xF) - (src & 0xF) - (XFLG ? 1 : 0);\n"); - printf("\tUWORD newv_hi = (dst & 0xF0) - (src & 0xF0);\n"); - printf("\tUWORD newv;\n"); - printf("\tif (newv_lo > 9) { newv_lo-=6; newv_hi-=0x10; }\n"); - printf("\tnewv = newv_hi + (newv_lo & 0xF);"); - printf("\tCFLG = XFLG = (newv_hi & 0x1F0) > 0x90;\n"); - printf("\tif (CFLG) newv -= 0x60;\n"); - genflags(flag_zn, table68k[opcode].size, "newv", "", ""); - genflags(flag_sv, table68k[opcode].size, "newv", "src", "dst"); - genastore("newv", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst"); - break; - case i_ADD: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0); - start_brace (); - genflags(flag_add, table68k[opcode].size, "newv", "src", "dst"); - genastore("newv", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst"); - break; - case i_ADDA: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", sz_long, "dst", 1, 0); - start_brace (); - printf("\tULONG newv = dst + src;\n"); - genastore("newv", table68k[opcode].dmode, "dstreg", sz_long, "dst"); - break; - case i_ADDX: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0); - start_brace (); - printf("\tULONG newv = dst + src + (XFLG ? 1 : 0);\n"); - genflags(flag_addx, table68k[opcode].size, "newv", "src", "dst"); - genflags(flag_zn, table68k[opcode].size, "newv", "", ""); - genastore("newv", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst"); - break; - case i_ABCD: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0); - start_brace (); - printf("\tUWORD newv_lo = (src & 0xF) + (dst & 0xF) + (XFLG ? 1 : 0);\n"); - printf("\tUWORD newv_hi = (src & 0xF0) + (dst & 0xF0);\n"); - printf("\tUWORD newv;\n"); - printf("\tif (newv_lo > 9) { newv_lo +=6; }\n"); - printf("\tnewv = newv_hi + newv_lo;"); - printf("\tCFLG = XFLG = (newv & 0x1F0) > 0x90;\n"); - printf("\tif (CFLG) newv += 0x60;\n"); - genflags(flag_zn, table68k[opcode].size, "newv", "", ""); - genflags(flag_sv, table68k[opcode].size, "newv", "src", "dst"); - genastore("newv", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst"); - break; - case i_NEG: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - start_brace (); - genflags(flag_sub, table68k[opcode].size, "dst", "src", "0"); - genastore("dst",table68k[opcode].smode, "srcreg", table68k[opcode].size, "src"); - break; - case i_NEGX: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - start_brace (); - printf("\tULONG newv = 0 - src - (XFLG ? 1 : 0);\n"); - genflags(flag_subx, table68k[opcode].size, "newv", "src", "0"); - genflags(flag_zn, table68k[opcode].size, "newv", "", ""); - genastore("newv", table68k[opcode].smode, "srcreg", table68k[opcode].size, "src"); - break; - case i_NBCD: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - start_brace (); - printf("\tUWORD newv_lo = - (src & 0xF) - (XFLG ? 1 : 0);\n"); - printf("\tUWORD newv_hi = - (src & 0xF0);\n"); - printf("\tUWORD newv;\n"); - printf("\tif (newv_lo > 9) { newv_lo-=6; newv_hi-=0x10; }\n"); - printf("\tnewv = newv_hi + (newv_lo & 0xF);"); - printf("\tCFLG = XFLG = (newv_hi & 0x1F0) > 0x90;\n"); - printf("\tif (CFLG) newv -= 0x60;\n"); - genflags(flag_zn, table68k[opcode].size, "newv", "", ""); - genastore("newv", table68k[opcode].smode, "srcreg", table68k[opcode].size, "src"); - break; - case i_CLR: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 0, 0); - genflags(flag_logical, table68k[opcode].size, "0", "", ""); - genastore("0",table68k[opcode].smode, "srcreg", table68k[opcode].size, "src"); - break; - case i_NOT: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - start_brace (); - printf("\tULONG dst = ~src;\n"); - genflags(flag_logical, table68k[opcode].size, "dst", "", ""); - genastore("dst",table68k[opcode].smode, "srcreg", table68k[opcode].size, "src"); - break; - case i_TST: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genflags(flag_logical, table68k[opcode].size, "src", "", ""); - break; - case i_BTST: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0); - if (table68k[opcode].size == sz_byte) - printf("\tsrc &= 7;\n"); +} + +static const char *cmask (wordsizes size) +{ + switch (size) { + case sz_byte: return "0x80"; + case sz_word: return "0x8000"; + case sz_long: return "0x80000000"; + default: abort (); + } +} + +static int source_is_imm1_8 (struct instr *i) +{ + return i->stype == 3; +} + +static void gen_opcode (unsigned long int opcode) +{ + struct instr *curi = table68k + opcode; + insn_n_cycles = 4; + + start_brace (); +#if 0 + printf ("uae_u8 *m68k_pc = regs.pc_p;\n"); +#endif + m68k_pc_offset = 2; + switch (curi->plev) { + case 0: /* not privileged */ + break; + case 1: /* unprivileged only on 68000 */ + if (cpu_level == 0) + break; + if (next_cpu_level < 0) + next_cpu_level = 0; + + /* fall through */ + case 2: /* priviledged */ + printf ("if (!regs.s) { Exception(8,0); goto %s; }\n", endlabelstr); + need_endlabel = 1; + start_brace (); + break; + case 3: /* privileged if size == word */ + if (curi->size == sz_byte) + break; + printf ("if (!regs.s) { Exception(8,0); goto %s; }\n", endlabelstr); + need_endlabel = 1; + start_brace (); + break; + } + switch (curi->mnemo) { + case i_OR: + case i_AND: + case i_EOR: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0); + printf ("\tsrc %c= dst;\n", curi->mnemo == i_OR ? '|' : curi->mnemo == i_AND ? '&' : '^'); + genflags (flag_logical, curi->size, "src", "", ""); + genastore ("src", curi->dmode, "dstreg", curi->size, "dst"); + break; + case i_ORSR: + case i_EORSR: + printf ("\tMakeSR();\n"); + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + if (curi->size == sz_byte) { + printf ("\tsrc &= 0xFF;\n"); + } + printf ("\tregs.sr %c= src;\n", curi->mnemo == i_EORSR ? '^' : '|'); + printf ("\tMakeFromSR();\n"); + break; + case i_ANDSR: + printf ("\tMakeSR();\n"); + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + if (curi->size == sz_byte) { + printf ("\tsrc |= 0xFF00;\n"); + } + printf ("\tregs.sr &= src;\n"); + printf ("\tMakeFromSR();\n"); + break; + case i_SUB: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0); + start_brace (); + genflags (flag_sub, curi->size, "newv", "src", "dst"); + genastore ("newv", curi->dmode, "dstreg", curi->size, "dst"); + break; + case i_SUBA: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0); + start_brace (); + printf ("\tuae_u32 newv = dst - src;\n"); + genastore ("newv", curi->dmode, "dstreg", sz_long, "dst"); + break; + case i_SUBX: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0); + start_brace (); + printf ("\tuae_u32 newv = dst - src - (GET_XFLG ? 1 : 0);\n"); + genflags (flag_subx, curi->size, "newv", "src", "dst"); + genflags (flag_zn, curi->size, "newv", "", ""); + genastore ("newv", curi->dmode, "dstreg", curi->size, "dst"); + break; + case i_SBCD: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0); + start_brace (); + printf ("\tuae_u16 newv_lo = (dst & 0xF) - (src & 0xF) - (GET_XFLG ? 1 : 0);\n"); + printf ("\tuae_u16 newv_hi = (dst & 0xF0) - (src & 0xF0);\n"); + printf ("\tuae_u16 newv, tmp_newv;\n"); + printf ("\tint bcd = 0;\n"); + printf ("\tnewv = tmp_newv = newv_hi + newv_lo;\n"); + printf ("\tif (newv_lo & 0xF0) { newv -= 6; bcd = 6; };\n"); + printf ("\tif ((((dst & 0xFF) - (src & 0xFF) - (GET_XFLG ? 1 : 0)) & 0x100) > 0xFF) { newv -= 0x60; }\n"); + printf ("\tSET_CFLG ((((dst & 0xFF) - (src & 0xFF) - bcd - (GET_XFLG ? 1 : 0)) & 0x300) > 0xFF);\n"); + duplicate_carry (); + genflags (flag_zn, curi->size, "newv", "", ""); + printf ("\tSET_VFLG ((tmp_newv & 0x80) != 0 && (newv & 0x80) == 0);\n"); + genastore ("newv", curi->dmode, "dstreg", curi->size, "dst"); + break; + case i_ADD: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0); + start_brace (); + genflags (flag_add, curi->size, "newv", "src", "dst"); + genastore ("newv", curi->dmode, "dstreg", curi->size, "dst"); + break; + case i_ADDA: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0); + start_brace (); + printf ("\tuae_u32 newv = dst + src;\n"); + genastore ("newv", curi->dmode, "dstreg", sz_long, "dst"); + break; + case i_ADDX: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0); + start_brace (); + printf ("\tuae_u32 newv = dst + src + (GET_XFLG ? 1 : 0);\n"); + genflags (flag_addx, curi->size, "newv", "src", "dst"); + genflags (flag_zn, curi->size, "newv", "", ""); + genastore ("newv", curi->dmode, "dstreg", curi->size, "dst"); + break; + case i_ABCD: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0); + start_brace (); + printf ("\tuae_u16 newv_lo = (src & 0xF) + (dst & 0xF) + (GET_XFLG ? 1 : 0);\n"); + printf ("\tuae_u16 newv_hi = (src & 0xF0) + (dst & 0xF0);\n"); + printf ("\tuae_u16 newv, tmp_newv;\n"); + printf ("\tint cflg;\n"); + printf ("\tnewv = tmp_newv = newv_hi + newv_lo;"); + printf ("\tif (newv_lo > 9) { newv += 6; }\n"); + printf ("\tcflg = (newv & 0x3F0) > 0x90;\n"); + printf ("\tif (cflg) newv += 0x60;\n"); + printf ("\tSET_CFLG (cflg);\n"); + duplicate_carry (); + genflags (flag_zn, curi->size, "newv", "", ""); + printf ("\tSET_VFLG ((tmp_newv & 0x80) == 0 && (newv & 0x80) != 0);\n"); + genastore ("newv", curi->dmode, "dstreg", curi->size, "dst"); + break; + case i_NEG: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + start_brace (); + genflags (flag_sub, curi->size, "dst", "src", "0"); + genastore ("dst", curi->smode, "srcreg", curi->size, "src"); + break; + case i_NEGX: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + start_brace (); + printf ("\tuae_u32 newv = 0 - src - (GET_XFLG ? 1 : 0);\n"); + genflags (flag_subx, curi->size, "newv", "src", "0"); + genflags (flag_zn, curi->size, "newv", "", ""); + genastore ("newv", curi->smode, "srcreg", curi->size, "src"); + break; + case i_NBCD: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + start_brace (); + printf ("\tuae_u16 newv_lo = - (src & 0xF) - (GET_XFLG ? 1 : 0);\n"); + printf ("\tuae_u16 newv_hi = - (src & 0xF0);\n"); + printf ("\tuae_u16 newv;\n"); + printf ("\tint cflg;\n"); + printf ("\tif (newv_lo > 9) { newv_lo -= 6; }\n"); + printf ("\tnewv = newv_hi + newv_lo;"); + printf ("\tcflg = (newv & 0x1F0) > 0x90;\n"); + printf ("\tif (cflg) newv -= 0x60;\n"); + printf ("\tSET_CFLG (cflg);\n"); + duplicate_carry(); + genflags (flag_zn, curi->size, "newv", "", ""); + genastore ("newv", curi->smode, "srcreg", curi->size, "src"); + break; + case i_CLR: + genamode (curi->smode, "srcreg", curi->size, "src", 2, 0); + genflags (flag_logical, curi->size, "0", "", ""); + genastore ("0", curi->smode, "srcreg", curi->size, "src"); + break; + case i_NOT: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + start_brace (); + printf ("\tuae_u32 dst = ~src;\n"); + genflags (flag_logical, curi->size, "dst", "", ""); + genastore ("dst", curi->smode, "srcreg", curi->size, "src"); + break; + case i_TST: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genflags (flag_logical, curi->size, "src", "", ""); + break; + case i_BTST: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0); + if (curi->size == sz_byte) + printf ("\tsrc &= 7;\n"); else - printf("\tsrc &= 31;\n"); - printf("\tZFLG = !(dst & (1 << src));\n"); + printf ("\tsrc &= 31;\n"); + printf ("\tSET_ZFLG (1 ^ ((dst >> src) & 1));\n"); break; - case i_BCHG: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0); - if (table68k[opcode].size == sz_byte) - printf("\tsrc &= 7;\n"); + case i_BCHG: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0); + if (curi->size == sz_byte) + printf ("\tsrc &= 7;\n"); else - printf("\tsrc &= 31;\n"); - printf("\tZFLG = !(dst & (1 << src));\n"); - printf("\tdst ^= (1 << src);\n"); - genastore("dst", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst"); - break; - case i_BCLR: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0); - if (table68k[opcode].size == sz_byte) - printf("\tsrc &= 7;\n"); + printf ("\tsrc &= 31;\n"); + printf ("\tdst ^= (1 << src);\n"); + printf ("\tSET_ZFLG (((uae_u32)dst & (1 << src)) >> src);\n"); + genastore ("dst", curi->dmode, "dstreg", curi->size, "dst"); + break; + case i_BCLR: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0); + if (curi->size == sz_byte) + printf ("\tsrc &= 7;\n"); else - printf("\tsrc &= 31;\n"); - printf("\tZFLG = !(dst & (1 << src));\n"); - printf("\tdst &= ~(1 << src);\n"); - genastore("dst", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst"); - break; - case i_BSET: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0); - if (table68k[opcode].size == sz_byte) - printf("\tsrc &= 7;\n"); + printf ("\tsrc &= 31;\n"); + printf ("\tSET_ZFLG (1 ^ ((dst >> src) & 1));\n"); + printf ("\tdst &= ~(1 << src);\n"); + genastore ("dst", curi->dmode, "dstreg", curi->size, "dst"); + break; + case i_BSET: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0); + if (curi->size == sz_byte) + printf ("\tsrc &= 7;\n"); else - printf("\tsrc &= 31;\n"); - printf("\tZFLG = !(dst & (1 << src));\n"); - printf("\tdst |= (1 << src);\n"); - genastore("dst", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst"); - break; - case i_CMPM: - case i_CMP: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0); - start_brace (); - genflags(flag_cmp, table68k[opcode].size, "newv", "src", "dst"); - break; - case i_CMPA: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", sz_long, "dst", 1, 0); + printf ("\tsrc &= 31;\n"); + printf ("\tSET_ZFLG (1 ^ ((dst >> src) & 1));\n"); + printf ("\tdst |= (1 << src);\n"); + genastore ("dst", curi->dmode, "dstreg", curi->size, "dst"); + break; + case i_CMPM: + case i_CMP: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0); + start_brace (); + genflags (flag_cmp, curi->size, "newv", "src", "dst"); + break; + case i_CMPA: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0); start_brace (); - genflags(flag_cmp, sz_long, "newv", "src", "dst"); + genflags (flag_cmp, sz_long, "newv", "src", "dst"); break; /* The next two are coded a little unconventional, but they are doing * weird things... */ - case i_MVPRM: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - printf("\tCPTR memp = m68k_areg(regs, dstreg) + nextiword();\n"); - if (table68k[opcode].size == sz_word) { - printf("\tput_byte(memp, src >> 8); put_byte(memp + 2, src);\n"); + case i_MVPRM: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + + printf ("\tuaecptr memp = m68k_areg(regs, dstreg) + (uae_s32)(uae_s16)%s;\n", gen_nextiword ()); + if (curi->size == sz_word) { + printf ("\tput_byte(memp, src >> 8); put_byte(memp + 2, src);\n"); } else { - printf("\tput_byte(memp, src >> 24); put_byte(memp + 2, src >> 16);\n"); - printf("\tput_byte(memp + 4, src >> 8); put_byte(memp + 6, src);\n"); + printf ("\tput_byte(memp, src >> 24); put_byte(memp + 2, src >> 16);\n"); + printf ("\tput_byte(memp + 4, src >> 8); put_byte(memp + 6, src);\n"); } break; - case i_MVPMR: - printf("\tCPTR memp = m68k_areg(regs, srcreg) + nextiword();\n"); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 0, 0); - if (table68k[opcode].size == sz_word) { - printf("\tUWORD val = (get_byte(memp) << 8) + get_byte(memp + 2);\n"); + case i_MVPMR: + printf ("\tuaecptr memp = m68k_areg(regs, srcreg) + (uae_s32)(uae_s16)%s;\n", gen_nextiword ()); + genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0); + if (curi->size == sz_word) { + printf ("\tuae_u16 val = (get_byte(memp) << 8) + get_byte(memp + 2);\n"); } else { - printf("\tULONG val = (get_byte(memp) << 24) + (get_byte(memp + 2) << 16)\n"); - printf(" + (get_byte(memp + 4) << 8) + get_byte(memp + 6);\n"); + printf ("\tuae_u32 val = (get_byte(memp) << 24) + (get_byte(memp + 2) << 16)\n"); + printf (" + (get_byte(memp + 4) << 8) + get_byte(memp + 6);\n"); } - genastore("val", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst"); + genastore ("val", curi->dmode, "dstreg", curi->size, "dst"); break; - case i_MOVE: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 0, 0); - genflags(flag_logical, table68k[opcode].size, "src", "", ""); - genastore("src", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst"); - break; - case i_MOVEA: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 0, 0); - if (table68k[opcode].size == sz_word) { - printf("\tULONG val = (LONG)(WORD)src;\n"); + case i_MOVE: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0); + genflags (flag_logical, curi->size, "src", "", ""); + genastore ("src", curi->dmode, "dstreg", curi->size, "dst"); + break; + case i_MOVEA: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0); + if (curi->size == sz_word) { + printf ("\tuae_u32 val = (uae_s32)(uae_s16)src;\n"); } else { - printf("\tULONG val = src;\n"); + printf ("\tuae_u32 val = src;\n"); } - genastore("val", table68k[opcode].dmode, "dstreg", sz_long, "dst"); + genastore ("val", curi->dmode, "dstreg", sz_long, "dst"); break; - case i_MVSR2: - genamode(table68k[opcode].smode, "srcreg", sz_word, "src", 0, 0); - printf("\tMakeSR();\n"); - if (table68k[opcode].size == sz_byte) - genastore("regs.sr & 0xff", table68k[opcode].smode, "srcreg", sz_word, "src"); + case i_MVSR2: + genamode (curi->smode, "srcreg", sz_word, "src", 2, 0); + printf ("\tMakeSR();\n"); + if (curi->size == sz_byte) + genastore ("regs.sr & 0xff", curi->smode, "srcreg", sz_word, "src"); else - genastore("regs.sr", table68k[opcode].smode, "srcreg", sz_word, "src"); + genastore ("regs.sr", curi->smode, "srcreg", sz_word, "src"); break; - case i_MV2SR: - genamode(table68k[opcode].smode, "srcreg", sz_word, "src", 1, 0); - if (table68k[opcode].size == sz_byte) - printf("\tMakeSR();\n\tregs.sr &= 0xFF00;\n\tregs.sr |= src & 0xFF;\n"); - else { - printf("\tregs.sr = src;\n"); - } - printf("\tMakeFromSR();\n"); - break; - case i_SWAP: - genamode(table68k[opcode].smode, "srcreg", sz_long, "src", 1, 0); - start_brace (); - printf("\tULONG dst = ((src >> 16)&0xFFFF) | ((src&0xFFFF)<<16);\n"); - genflags(flag_logical, sz_long, "dst", "", ""); - genastore("dst",table68k[opcode].smode, "srcreg", sz_long, "src"); - break; - case i_EXG: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0); - genastore("dst",table68k[opcode].smode, "srcreg", table68k[opcode].size, "src"); - genastore("src",table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst"); - break; - case i_EXT: - genamode(table68k[opcode].smode, "srcreg", sz_long, "src", 1, 0); - start_brace (); - switch(table68k[opcode].size) { - case sz_byte: printf("\tULONG dst = (LONG)(BYTE)src;\n"); break; - case sz_word: printf("\tUWORD dst = (WORD)(BYTE)src;\n"); break; - case sz_long: printf("\tULONG dst = (LONG)(WORD)src;\n"); break; - default: abort(); - } - genflags(flag_logical, - table68k[opcode].size == sz_word ? sz_word : sz_long, "dst", "", ""); - genastore("dst",table68k[opcode].smode, "srcreg", - table68k[opcode].size == sz_word ? sz_word : sz_long, "src"); - break; - case i_MVMEL: - genmovemel(opcode); - break; - case i_MVMLE: - genmovemle(opcode); - break; - case i_TRAP: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - printf("\tException(src+32,0);\n"); - break; - case i_MVR2USP: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - printf("\tregs.usp = src;\n"); - break; - case i_MVUSP2R: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 0, 0); - genastore("regs.usp", table68k[opcode].smode, "srcreg", table68k[opcode].size, "src"); - break; - case i_RESET: - printf("\tcustomreset();\n"); - break; - case i_NOP: - break; - case i_STOP: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - printf("\tregs.sr = src;\n"); - printf("\tMakeFromSR();\n"); - printf("\tm68k_setstopped(1);\n"); - break; - case i_RTE: - if (CPU_LEVEL == 0) { - genamode(Aipi, "7", sz_word, "sr", 1, 0); - genamode(Aipi, "7", sz_long, "pc", 1, 0); - printf("\tregs.sr = sr; m68k_setpc_rte(pc);\n"); - printf("\tMakeFromSR();\n"); - } + case i_MV2SR: + genamode (curi->smode, "srcreg", sz_word, "src", 1, 0); + if (curi->size == sz_byte) + printf ("\tMakeSR();\n\tregs.sr &= 0xFF00;\n\tregs.sr |= src & 0xFF;\n"); else { + printf ("\tregs.sr = src;\n"); + } + printf ("\tMakeFromSR();\n"); + break; + case i_SWAP: + genamode (curi->smode, "srcreg", sz_long, "src", 1, 0); + start_brace (); + printf ("\tuae_u32 dst = ((src >> 16)&0xFFFF) | ((src&0xFFFF)<<16);\n"); + genflags (flag_logical, sz_long, "dst", "", ""); + genastore ("dst", curi->smode, "srcreg", sz_long, "src"); + break; + case i_EXG: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0); + genastore ("dst", curi->smode, "srcreg", curi->size, "src"); + genastore ("src", curi->dmode, "dstreg", curi->size, "dst"); + break; + case i_EXT: + genamode (curi->smode, "srcreg", sz_long, "src", 1, 0); + start_brace (); + switch (curi->size) { + case sz_byte: printf ("\tuae_u32 dst = (uae_s32)(uae_s8)src;\n"); break; + case sz_word: printf ("\tuae_u16 dst = (uae_s16)(uae_s8)src;\n"); break; + case sz_long: printf ("\tuae_u32 dst = (uae_s32)(uae_s16)src;\n"); break; + default: abort (); + } + genflags (flag_logical, + curi->size == sz_word ? sz_word : sz_long, "dst", "", ""); + genastore ("dst", curi->smode, "srcreg", + curi->size == sz_word ? sz_word : sz_long, "src"); + break; + case i_MVMEL: + genmovemel (opcode); + break; + case i_MVMLE: + genmovemle (opcode); + break; + case i_TRAP: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + sync_m68k_pc (); + printf ("\tException(src+32,0);\n"); + m68k_pc_offset = 0; + break; + case i_MVR2USP: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + printf ("\tregs.usp = src;\n"); + break; + case i_MVUSP2R: + genamode (curi->smode, "srcreg", curi->size, "src", 2, 0); + genastore ("regs.usp", curi->smode, "srcreg", curi->size, "src"); + break; + case i_RESET: + printf ("\tcustomreset();\n"); + break; + case i_NOP: + break; + case i_STOP: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + printf ("\tregs.sr = src;\n"); + printf ("\tMakeFromSR();\n"); + printf ("\tm68k_setstopped(1);\n"); + break; + case i_RTE: + if (cpu_level == 0) { + genamode (Aipi, "7", sz_word, "sr", 1, 0); + genamode (Aipi, "7", sz_long, "pc", 1, 0); + printf ("\tregs.sr = sr; m68k_setpc_rte(pc);\n"); + fill_prefetch_0 (); + printf ("\tMakeFromSR();\n"); + } else { int old_brace_level = n_braces; - printf("\tUWORD newsr; ULONG newpc; for (;;) {\n"); - genamode(Aipi, "7", sz_word, "sr", 1, 0); - genamode(Aipi, "7", sz_long, "pc", 1, 0); - genamode(Aipi, "7", sz_word, "format", 1, 0); - printf("\tnewsr = sr; newpc = pc;\n"); - printf("\tif ((format & 0xF000) == 0x0000) { break; }\n"); - printf("\telse if ((format & 0xF000) == 0x1000) { ; }\n"); - printf("\telse if ((format & 0xF000) == 0x2000) { m68k_areg(regs, 7) += 4; break; }\n"); - printf("\telse if ((format & 0xF000) == 0x8000) { m68k_areg(regs, 7) += 50; break; }\n"); - printf("\telse if ((format & 0xF000) == 0x9000) { m68k_areg(regs, 7) += 12; break; }\n"); - printf("\telse if ((format & 0xF000) == 0xa000) { m68k_areg(regs, 7) += 24; break; }\n"); - printf("\telse if ((format & 0xF000) == 0xb000) { m68k_areg(regs, 7) += 84; break; }\n"); - printf("\telse { Exception(14,0); return; }\n"); - printf("\tregs.sr = newsr; MakeFromSR();\n}\n"); + if (next_cpu_level < 0) + next_cpu_level = 0; + printf ("\tuae_u16 newsr; uae_u32 newpc; for (;;) {\n"); + genamode (Aipi, "7", sz_word, "sr", 1, 0); + genamode (Aipi, "7", sz_long, "pc", 1, 0); + genamode (Aipi, "7", sz_word, "format", 1, 0); + printf ("\tnewsr = sr; newpc = pc;\n"); + printf ("\tif ((format & 0xF000) == 0x0000) { break; }\n"); + printf ("\telse if ((format & 0xF000) == 0x1000) { ; }\n"); + printf ("\telse if ((format & 0xF000) == 0x2000) { m68k_areg(regs, 7) += 4; break; }\n"); + printf ("\telse if ((format & 0xF000) == 0x8000) { m68k_areg(regs, 7) += 50; break; }\n"); + printf ("\telse if ((format & 0xF000) == 0x9000) { m68k_areg(regs, 7) += 12; break; }\n"); + printf ("\telse if ((format & 0xF000) == 0xa000) { m68k_areg(regs, 7) += 24; break; }\n"); + printf ("\telse if ((format & 0xF000) == 0xb000) { m68k_areg(regs, 7) += 84; break; }\n"); + printf ("\telse { Exception(14,0); goto %s; }\n", endlabelstr); + printf ("\tregs.sr = newsr; MakeFromSR();\n}\n"); pop_braces (old_brace_level); - printf("\tregs.sr = newsr; MakeFromSR();\n"); - printf("\tm68k_setpc_rte(newpc);\n"); + printf ("\tregs.sr = newsr; MakeFromSR();\n"); + printf ("\tm68k_setpc_rte(newpc);\n"); + fill_prefetch_0 (); + need_endlabel = 1; + } + /* PC is set and prefetch filled. */ + m68k_pc_offset = 0; + break; + case i_RTD: + printf ("\tcompiler_flush_jsr_stack();\n"); + genamode (Aipi, "7", sz_long, "pc", 1, 0); + genamode (curi->smode, "srcreg", curi->size, "offs", 1, 0); + printf ("\tm68k_areg(regs, 7) += offs;\n"); + printf ("\tm68k_setpc_rte(pc);\n"); + fill_prefetch_0 (); + /* PC is set and prefetch filled. */ + m68k_pc_offset = 0; + break; + case i_LINK: + genamode (Apdi, "7", sz_long, "old", 2, 0); + genamode (curi->smode, "srcreg", sz_long, "src", 1, 0); + genastore ("src", Apdi, "7", sz_long, "old"); + genastore ("m68k_areg(regs, 7)", curi->smode, "srcreg", sz_long, "src"); + genamode (curi->dmode, "dstreg", curi->size, "offs", 1, 0); + printf ("\tm68k_areg(regs, 7) += offs;\n"); + break; + case i_UNLK: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + printf ("\tm68k_areg(regs, 7) = src;\n"); + genamode (Aipi, "7", sz_long, "old", 1, 0); + genastore ("old", curi->smode, "srcreg", curi->size, "src"); + break; + case i_RTS: + printf ("\tm68k_do_rts();\n"); + fill_prefetch_0 (); + m68k_pc_offset = 0; + break; + case i_TRAPV: + sync_m68k_pc (); + printf ("\tif (GET_VFLG) { Exception(7,m68k_getpc()); goto %s; }\n", endlabelstr); + need_endlabel = 1; + break; + case i_RTR: + printf ("\tcompiler_flush_jsr_stack();\n"); + printf ("\tMakeSR();\n"); + genamode (Aipi, "7", sz_word, "sr", 1, 0); + genamode (Aipi, "7", sz_long, "pc", 1, 0); + printf ("\tregs.sr &= 0xFF00; sr &= 0xFF;\n"); + printf ("\tregs.sr |= sr; m68k_setpc(pc);\n"); + fill_prefetch_0 (); + printf ("\tMakeFromSR();\n"); + m68k_pc_offset = 0; + break; + case i_JSR: + genamode (curi->smode, "srcreg", curi->size, "src", 0, 0); + printf ("\tm68k_do_jsr(m68k_getpc() + %d, srca);\n", m68k_pc_offset); + fill_prefetch_0 (); + m68k_pc_offset = 0; + break; + case i_JMP: + genamode (curi->smode, "srcreg", curi->size, "src", 0, 0); + printf ("\tm68k_setpc(srca);\n"); + fill_prefetch_0 (); + m68k_pc_offset = 0; + break; + case i_BSR: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + printf ("\tuae_s32 s = (uae_s32)src + 2;\n"); + if (using_exception_3) { + printf ("\tif (src & 1) {\n"); + printf ("\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n"); + printf ("\t\tlast_fault_for_exception_3 = m68k_getpc() + s;\n"); + printf ("\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr); + printf ("\t}\n"); + need_endlabel = 1; + } + printf ("\tm68k_do_bsr(m68k_getpc() + %d, s);\n", m68k_pc_offset); + fill_prefetch_0 (); + m68k_pc_offset = 0; + break; + case i_Bcc: + if (curi->size == sz_long) { + if (cpu_level < 2) { + printf ("\tm68k_incpc(2);\n"); + printf ("\tif (!cctrue(%d)) goto %s;\n", curi->cc, endlabelstr); + printf ("\t\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n"); + printf ("\t\tlast_fault_for_exception_3 = m68k_getpc() + 1;\n"); + printf ("\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr); + need_endlabel = 1; + } else { + if (next_cpu_level < 1) + next_cpu_level = 1; + } + } + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + printf ("\tif (!cctrue(%d)) goto didnt_jump;\n", curi->cc); + if (using_exception_3) { + printf ("\tif (src & 1) {\n"); + printf ("\t\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n"); + printf ("\t\tlast_fault_for_exception_3 = m68k_getpc() + 2 + (uae_s32)src;\n"); + printf ("\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr); + printf ("\t}\n"); + need_endlabel = 1; } - break; - case i_RTD: - printf("\tcompiler_flush_jsr_stack();\n"); - genamode(Aipi, "7", sz_long, "pc", 1, 0); - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "offs", 1, 0); - printf("\tm68k_areg(regs, 7) += offs;\n"); - printf("\tm68k_setpc_rte(pc);\n"); - break; - case i_LINK: - genamode(Apdi, "7", sz_long, "old", 0, 0); - genamode(table68k[opcode].smode, "srcreg", sz_long, "src", 1, 0); - genastore("src", Apdi, "7", sz_long, "old"); - genastore("m68k_areg(regs, 7)", table68k[opcode].smode, "srcreg", sz_long, "src"); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "offs", 1, 0); - printf("\tm68k_areg(regs, 7) += offs;\n"); - break; - case i_UNLK: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - printf("\tm68k_areg(regs, 7) = src;\n"); - genamode(Aipi, "7", sz_long, "old", 1, 0); - genastore("old", table68k[opcode].smode, "srcreg", table68k[opcode].size, "src"); - break; - case i_RTS: - printf("\tm68k_do_rts();\n"); - break; - case i_TRAPV: - printf("\tif(VFLG) Exception(7,m68k_getpc()-2);\n"); - break; - case i_RTR: - printf("\tcompiler_flush_jsr_stack();\n"); - printf("\tMakeSR();\n"); - genamode(Aipi, "7", sz_word, "sr", 1, 0); - genamode(Aipi, "7", sz_long, "pc", 1, 0); - printf("\tregs.sr &= 0xFF00; sr &= 0xFF;\n"); - printf("\tregs.sr |= sr; m68k_setpc(pc);\n"); - printf("\tMakeFromSR();\n"); - break; - case i_JSR: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 0, 0); - printf("\tm68k_do_jsr(srca);\n"); - break; - case i_JMP: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 0, 0); - printf("\tm68k_setpc(srca);\n"); - break; - /* Put on your cool #ifdef shades... */ - case i_BSR: -#if defined(USE_POINTER) - printf("\tchar *oldpcp = (char *)regs.pc_p;\n"); - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - printf("\tLONG s = (LONG)src - (((char *)regs.pc_p) - oldpcp);\n"); -#else - printf("\tULONG oldpc = m68k_getpc();\n"); - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - printf("\tLONG s = (LONG)src - (m68k_getpc() - oldpc);\n"); -#endif - printf("\tm68k_do_bsr(s);\n"); - break; - case i_Bcc: -#if defined(USE_POINTER) && !defined(USE_COMPILER) - printf("\tchar *oldpcp = (char *)regs.pc_p;\n"); -#else - printf("\tULONG oldpc = m68k_getpc();\n"); -#endif - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - printf("\tif (cctrue(%d)) {\n", table68k[opcode].cc); #ifdef USE_COMPILER - printf("\tm68k_setpc_bcc(oldpc + (LONG)src);\n"); -#elif defined(USE_POINTER) - printf("\tregs.pc_p = (UBYTE *)(oldpcp + (LONG)src);\n"); + printf ("\tm68k_setpc_bcc(m68k_getpc() + 2 + (uae_s32)src);\n"); #else - printf("\tregs.pc = oldpc + (LONG)src;\n"); + printf ("\tm68k_incpc ((uae_s32)src + 2);\n"); #endif -#ifndef NO_EXCEPTION_3 - printf("\tif (src & 1) Exception(3,0);\n"); -#endif - printf("\t}\n"); - break; - case i_LEA: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 0, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 0, 0); - genastore("srca", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst"); - break; - case i_PEA: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 0, 0); - genamode(Apdi, "7", sz_long, "dst", 0, 0); - genastore("srca", Apdi, "7", sz_long, "dst"); - break; - case i_DBcc: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "offs", 1, 0); - printf("\tif (!cctrue(%d)) {\n", table68k[opcode].cc); - printf("\t\tif (src-- & 0xFFFF)"); /* The & 0xFFFF is for making the broken BeBox compiler happy */ + fill_prefetch_0 (); + printf ("\treturn 5 * CYCLE_UNIT;\n"); + printf ("didnt_jump:;\n"); + need_endlabel = 1; + insn_n_cycles = curi->size == sz_byte ? 8 : 12; + break; + case i_LEA: + genamode (curi->smode, "srcreg", curi->size, "src", 0, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0); + genastore ("srca", curi->dmode, "dstreg", curi->size, "dst"); + break; + case i_PEA: + genamode (curi->smode, "srcreg", curi->size, "src", 0, 0); + genamode (Apdi, "7", sz_long, "dst", 2, 0); + genastore ("srca", Apdi, "7", sz_long, "dst"); + break; + case i_DBcc: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "offs", 1, 0); + + printf ("\tif (!cctrue(%d)) {\n", curi->cc); + genastore ("(src-1)", curi->smode, "srcreg", curi->size, "src"); + + printf ("\t\tif (src) {\n"); + if (using_exception_3) { + printf ("\t\t\tif (offs & 1) {\n"); + printf ("\t\t\tlast_addr_for_exception_3 = m68k_getpc() + 2;\n"); + printf ("\t\t\tlast_fault_for_exception_3 = m68k_getpc() + 2 + (uae_s32)offs + 2;\n"); + printf ("\t\t\tlast_op_for_exception_3 = opcode; Exception(3,0); goto %s;\n", endlabelstr); + printf ("\t\t}\n"); + need_endlabel = 1; + } #ifdef USE_COMPILER - printf("m68k_setpc_bcc(m68k_getpc() + (LONG)offs - 2);\n"); -#elif defined(USE_POINTER) - printf("regs.pc_p = (UBYTE *)((char *)regs.pc_p + (LONG)offs - 2);\n"); + printf ("\t\t\tm68k_setpc_bcc(m68k_getpc() + (uae_s32)offs + 2);\n"); #else - printf("regs.pc += (LONG)offs - 2;\n"); + printf ("\t\t\tm68k_incpc((uae_s32)offs + 2);\n"); #endif - genastore("src", table68k[opcode].smode, "srcreg", table68k[opcode].size, "src"); - printf("\t}\n"); - break; - case i_Scc: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 0, 0); - start_brace (); - printf("\tint val = cctrue(%d) ? 0xff : 0;\n", table68k[opcode].cc); - genastore("val",table68k[opcode].smode, "srcreg", table68k[opcode].size, "src"); - break; - case i_DIVU: - printf("\tCPTR oldpc = m68k_getpc();\n"); - genamode(table68k[opcode].smode, "srcreg", sz_word, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", sz_long, "dst", 1, 0); - printf("\tif(src == 0) Exception(5,oldpc-2); else {\n"); - printf("\tULONG newv = (ULONG)dst / (ULONG)(UWORD)src;\n"); - printf("\tULONG rem = (ULONG)dst %% (ULONG)(UWORD)src;\n"); + fill_prefetch_0 (); + /* ??? Cycle count is a guess. */ + printf ("\t\treturn 6 * CYCLE_UNIT;\n"); + printf ("\t\t}\n"); + printf ("\t}\n"); + insn_n_cycles = 12; + need_endlabel = 1; + break; + case i_Scc: + genamode (curi->smode, "srcreg", curi->size, "src", 2, 0); + start_brace (); + printf ("\tint val = cctrue(%d) ? 0xff : 0;\n", curi->cc); + genastore ("val", curi->smode, "srcreg", curi->size, "src"); + break; + case i_DIVU: + printf ("\tuaecptr oldpc = m68k_getpc();\n"); + genamode (curi->smode, "srcreg", sz_word, "src", 1, 0); + genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0); + sync_m68k_pc (); + /* Clear V flag when dividing by zero - Alcatraz Odyssey demo depends + * on this (actually, it's doing a DIVS). */ + printf ("\tif (src == 0) { SET_VFLG (0); Exception (5, oldpc); goto %s; } else {\n", endlabelstr); + printf ("\tuae_u32 newv = (uae_u32)dst / (uae_u32)(uae_u16)src;\n"); + printf ("\tuae_u32 rem = (uae_u32)dst %% (uae_u32)(uae_u16)src;\n"); /* The N flag appears to be set each time there is an overflow. * Weird. */ - printf("\tif (newv > 0xffff) { VFLG = NFLG = 1; CFLG = 0; } else\n\t{\n"); - genflags(flag_logical, sz_word, "newv", "", ""); - printf("\tnewv = (newv & 0xffff) | ((ULONG)rem << 16);\n"); - genastore("newv",table68k[opcode].dmode, "dstreg", sz_long, "dst"); - printf("\t}\n"); - printf("\t}\n"); - break; - case i_DIVS: - printf("\tCPTR oldpc = m68k_getpc();\n"); - genamode(table68k[opcode].smode, "srcreg", sz_word, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", sz_long, "dst", 1, 0); - printf("\tif(src == 0) Exception(5,oldpc-2); else {\n"); - printf("\tLONG newv = (LONG)dst / (LONG)(WORD)src;\n"); - printf("\tUWORD rem = (LONG)dst %% (LONG)(WORD)src;\n"); - printf("\tif ((newv & 0xffff8000) != 0 && (newv & 0xffff8000) != 0xffff8000) { VFLG = NFLG = 1; CFLG = 0; } else\n\t{\n"); - printf("\tif (((WORD)rem < 0) != ((LONG)dst < 0)) rem = -rem;\n"); - genflags(flag_logical, sz_word, "newv", "", ""); - printf("\tnewv = (newv & 0xffff) | ((ULONG)rem << 16);\n"); - genastore("newv",table68k[opcode].dmode, "dstreg", sz_long, "dst"); - printf("\t}\n"); - printf("\t}\n"); - break; - case i_MULU: - genamode(table68k[opcode].smode, "srcreg", sz_word, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", sz_word, "dst", 1, 0); - start_brace (); - printf("\tULONG newv = (ULONG)(UWORD)dst * (ULONG)(UWORD)src;\n"); - genflags(flag_logical, sz_long, "newv", "", ""); - genastore("newv",table68k[opcode].dmode, "dstreg", sz_long, "dst"); -#ifdef WANT_SLOW_MULTIPLY - printf("\tregs.spcflags |= SPCFLAG_EXTRA_CYCLES;\n"); -#endif - break; - case i_MULS: - genamode(table68k[opcode].smode, "srcreg", sz_word, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", sz_word, "dst", 1, 0); - start_brace (); - printf("\tULONG newv = (LONG)(WORD)dst * (LONG)(WORD)src;\n"); - genflags(flag_logical, sz_long, "newv", "", ""); - genastore("newv",table68k[opcode].dmode, "dstreg", sz_long, "dst"); -#ifdef WANT_SLOW_MULTIPLY - printf("\tregs.spcflags |= SPCFLAG_EXTRA_CYCLES;\n"); -#endif - break; - case i_CHK: - printf("\tCPTR oldpc = m68k_getpc();\n"); - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0); - printf("\tif ((LONG)dst < 0) { NFLG=1; Exception(6,oldpc-2); }\n"); - printf("\telse if (dst > src) { NFLG=0; Exception(6,oldpc-2); }\n"); - break; - - case i_CHK2: - printf("\tCPTR oldpc = m68k_getpc();\n"); - genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0); - genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 0, 0); - printf("\t{LONG upper,lower,reg = regs.regs[(extra >> 12) & 15];\n"); - switch (table68k[opcode].size) { - case sz_byte: printf("\tlower=(LONG)(BYTE)get_byte(dsta); upper = (LONG)(BYTE)get_byte(dsta+1);\n"); - printf("\tif ((extra & 0x8000) == 0) reg = (LONG)(BYTE)reg;\n"); - break; - case sz_word: printf("\tlower=(LONG)(WORD)get_word(dsta); upper = (LONG)(WORD)get_word(dsta+2);\n"); - printf("\tif ((extra & 0x8000) == 0) reg = (LONG)(WORD)reg;\n"); - break; - case sz_long: printf("\tlower=get_long(dsta); upper = get_long(dsta+4);\n"); - break; + printf ("\tif (newv > 0xffff) { SET_VFLG (1); SET_NFLG (1); SET_CFLG (0); } else\n\t{\n"); + genflags (flag_logical, sz_word, "newv", "", ""); + printf ("\tnewv = (newv & 0xffff) | ((uae_u32)rem << 16);\n"); + genastore ("newv", curi->dmode, "dstreg", sz_long, "dst"); + printf ("\t}\n"); + printf ("\t}\n"); + insn_n_cycles += 136; + need_endlabel = 1; + break; + case i_DIVS: + printf ("\tuaecptr oldpc = m68k_getpc();\n"); + genamode (curi->smode, "srcreg", sz_word, "src", 1, 0); + genamode (curi->dmode, "dstreg", sz_long, "dst", 1, 0); + sync_m68k_pc (); + printf ("\tif (src == 0) { SET_VFLG (0); Exception(5,oldpc); goto %s; } else {\n", endlabelstr); + printf ("\tuae_s32 newv = (uae_s32)dst / (uae_s32)(uae_s16)src;\n"); + printf ("\tuae_u16 rem = (uae_s32)dst %% (uae_s32)(uae_s16)src;\n"); + printf ("\tif ((newv & 0xffff8000) != 0 && (newv & 0xffff8000) != 0xffff8000) { SET_VFLG (1); SET_NFLG (1); SET_CFLG (0); } else\n\t{\n"); + printf ("\tif (((uae_s16)rem < 0) != ((uae_s32)dst < 0)) rem = -rem;\n"); + genflags (flag_logical, sz_word, "newv", "", ""); + printf ("\tnewv = (newv & 0xffff) | ((uae_u32)rem << 16);\n"); + genastore ("newv", curi->dmode, "dstreg", sz_long, "dst"); + printf ("\t}\n"); + printf ("\t}\n"); + insn_n_cycles += 154; + need_endlabel = 1; + break; + case i_MULU: + genamode (curi->smode, "srcreg", sz_word, "src", 1, 0); + genamode (curi->dmode, "dstreg", sz_word, "dst", 1, 0); + start_brace (); + printf ("\tuae_u32 newv = (uae_u32)(uae_u16)dst * (uae_u32)(uae_u16)src;\n"); + genflags (flag_logical, sz_long, "newv", "", ""); + genastore ("newv", curi->dmode, "dstreg", sz_long, "dst"); + insn_n_cycles += 66; + break; + case i_MULS: + genamode (curi->smode, "srcreg", sz_word, "src", 1, 0); + genamode (curi->dmode, "dstreg", sz_word, "dst", 1, 0); + start_brace (); + printf ("\tuae_u32 newv = (uae_s32)(uae_s16)dst * (uae_s32)(uae_s16)src;\n"); + genflags (flag_logical, sz_long, "newv", "", ""); + genastore ("newv", curi->dmode, "dstreg", sz_long, "dst"); + insn_n_cycles += 66; + break; + case i_CHK: + printf ("\tuaecptr oldpc = m68k_getpc();\n"); + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0); + printf ("\tif ((uae_s32)dst < 0) { SET_NFLG (1); Exception(6,oldpc); goto %s; }\n", endlabelstr); + printf ("\telse if (dst > src) { SET_NFLG (0); Exception(6,oldpc); goto %s; }\n", endlabelstr); + need_endlabel = 1; + break; + + case i_CHK2: + printf ("\tuaecptr oldpc = m68k_getpc();\n"); + genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0); + printf ("\t{uae_s32 upper,lower,reg = regs.regs[(extra >> 12) & 15];\n"); + switch (curi->size) { + case sz_byte: + printf ("\tlower=(uae_s32)(uae_s8)get_byte(dsta); upper = (uae_s32)(uae_s8)get_byte(dsta+1);\n"); + printf ("\tif ((extra & 0x8000) == 0) reg = (uae_s32)(uae_s8)reg;\n"); + break; + case sz_word: + printf ("\tlower=(uae_s32)(uae_s16)get_word(dsta); upper = (uae_s32)(uae_s16)get_word(dsta+2);\n"); + printf ("\tif ((extra & 0x8000) == 0) reg = (uae_s32)(uae_s16)reg;\n"); + break; + case sz_long: + printf ("\tlower=get_long(dsta); upper = get_long(dsta+4);\n"); + break; default: - abort(); + abort (); } - printf("\tZFLG=upper == reg || lower == reg;\n"); - printf("\tCFLG=lower <= upper ? reg < lower || reg > upper : reg > upper || reg < lower;\n"); - printf("\tif ((extra & 0x800) && CFLG) Exception(6,oldpc-2);\n}\n"); - break; - - case i_ASR: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "cnt", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data", 1, 0); - start_brace (); - switch(table68k[opcode].size) { - case sz_byte: printf("\tUBYTE val = data;\n"); break; - case sz_word: printf("\tUWORD val = data;\n"); break; - case sz_long: printf("\tULONG val = data;\n"); break; - default: abort(); - } - switch(table68k[opcode].size) { - case sz_byte: printf("\tULONG cmask = 0x80;\n"); break; - case sz_word: printf("\tULONG cmask = 0x8000;\n"); break; - case sz_long: printf("\tULONG cmask = 0x80000000;\n"); break; - default: abort(); - } - printf("\tULONG sign = cmask & val;\n"); - printf("\tcnt &= 63;\n"); - printf("\tVFLG = 0;\n"); - printf("\tif (!cnt) { CFLG = 0; } else {\n"); - printf("\tif (cnt >= %d) {\n",bit_size(table68k[opcode].size)); - printf("\t\tval = sign ? %s : 0;\n",bit_mask(table68k[opcode].size)); - printf("\t\tCFLG=XFLG= sign ? 1 : 0;\n"); - printf("\t} else {\n"); - printf("\t\tCFLG=XFLG=(val >> (cnt-1)) & 1;\n"); - printf("\t\tval >>= cnt;\n"); - printf("\t\tif (sign) val |= %s << (%d - cnt);\n", - bit_mask(table68k[opcode].size), - bit_size(table68k[opcode].size)); - printf("\t}}\n"); - printf("\tNFLG = sign != 0;\n"); - printf("\tZFLG = val == 0;\n"); - genastore("val", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data"); - break; - case i_ASL: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "cnt", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data", 1, 0); - start_brace (); - switch(table68k[opcode].size) { - case sz_byte: printf("\tUBYTE val = data;\n"); break; - case sz_word: printf("\tUWORD val = data;\n"); break; - case sz_long: printf("\tULONG val = data;\n"); break; - default: abort(); - } - switch(table68k[opcode].size) { - case sz_byte: printf("\tULONG cmask = 0x80;\n"); break; - case sz_word: printf("\tULONG cmask = 0x8000;\n"); break; - case sz_long: printf("\tULONG cmask = 0x80000000;\n"); break; - default: abort(); - } - printf("\tcnt &= 63;\n"); - printf("\tVFLG = 0;\n"); - printf("\tif (!cnt) { CFLG = 0; } else {\n"); - printf("\tif (cnt >= %d) {\n",bit_size(table68k[opcode].size)); - printf("\t\tVFLG = val != 0;\n"); - printf("\t\tCFLG=XFLG = cnt == %d ? val & 1 : 0;\n", - bit_size(table68k[opcode].size)); - printf("\t\tval = 0;\n"); - printf("\t} else {\n"); - printf("\t\tULONG mask = (%s << (%d - cnt)) & %s;\n", - bit_mask(table68k[opcode].size), - bit_size(table68k[opcode].size)-1, - bit_mask(table68k[opcode].size)); - printf("\t\tCFLG=XFLG=(val << (cnt-1)) & cmask ? 1 : 0;\n"); - printf("\t\tVFLG = (val & mask) != mask && (val & mask) != 0;\n"); - printf("\t\tval <<= cnt;\n"); - printf("\t}}\n"); - printf("\tNFLG = (val&cmask) != 0;\n"); - printf("\tZFLG = val == 0;\n"); - genastore("val", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data"); - break; - case i_LSR: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "cnt", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data", 1, 0); - start_brace (); - switch(table68k[opcode].size) { - case sz_byte: printf("\tUBYTE val = data;\n"); break; - case sz_word: printf("\tUWORD val = data;\n"); break; - case sz_long: printf("\tULONG val = data;\n"); break; - default: abort(); - } - switch(table68k[opcode].size) { - case sz_byte: printf("\tULONG cmask = 0x80;\n"); break; - case sz_word: printf("\tULONG cmask = 0x8000;\n"); break; - case sz_long: printf("\tULONG cmask = 0x80000000;\n"); break; - default: abort(); - } - printf("\tcnt &= 63;\n"); - printf("\tif (!cnt) { CFLG = 0; } else {\n"); - printf("\tif (cnt >= %d) {\n",bit_size(table68k[opcode].size)); - printf("\t\tCFLG=XFLG = cnt == %d ? (val & cmask ? 1 : 0) : 0;\n", - bit_size(table68k[opcode].size)); - printf("\t\tval = 0;\n"); - printf("\t} else {\n"); - printf("\t\tCFLG=XFLG=(val >> (cnt-1)) & 1;\n"); - printf("\t\tval >>= cnt;\n"); - printf("\t}}\n"); - printf("\tNFLG = (val & cmask) != 0; ZFLG = val == 0; VFLG = 0;\n"); - genastore("val", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data"); - break; - case i_LSL: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "cnt", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data", 1, 0); - start_brace (); - switch(table68k[opcode].size) { - case sz_byte: printf("\tUBYTE val = data;\n"); break; - case sz_word: printf("\tUWORD val = data;\n"); break; - case sz_long: printf("\tULONG val = data;\n"); break; - default: abort(); - } - switch(table68k[opcode].size) { - case sz_byte: printf("\tULONG cmask = 0x80;\n"); break; - case sz_word: printf("\tULONG cmask = 0x8000;\n"); break; - case sz_long: printf("\tULONG cmask = 0x80000000;\n"); break; - default: abort(); - } - printf("\tcnt &= 63;\n"); - printf("\tif (!cnt) { CFLG = 0; } else {\n"); - printf("\tif (cnt >= %d) {\n",bit_size(table68k[opcode].size)); - printf("\t\tCFLG=XFLG = cnt == %d ? val & 1 : 0;\n", - bit_size(table68k[opcode].size)); - printf("\t\tval = 0;\n"); - printf("\t} else {\n"); - printf("\t\tCFLG=XFLG=(val << (cnt-1)) & cmask ? 1 : 0;\n"); - printf("\t\tval <<= cnt;\n"); - printf("\t}}\n"); - printf("\tNFLG = (val & cmask) != 0; ZFLG = val == 0; VFLG = 0;\n"); - genastore("val", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data"); - break; - case i_ROL: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "cnt", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data", 1, 0); - start_brace (); - switch(table68k[opcode].size) { - case sz_byte: printf("\tUBYTE val = data;\n"); break; - case sz_word: printf("\tUWORD val = data;\n"); break; - case sz_long: printf("\tULONG val = data;\n"); break; - default: abort(); - } - switch(table68k[opcode].size) { - case sz_byte: printf("\tULONG cmask = 0x80;\n"); break; - case sz_word: printf("\tULONG cmask = 0x8000;\n"); break; - case sz_long: printf("\tULONG cmask = 0x80000000;\n"); break; - default: abort(); - } - printf("\tcnt &= 63;\n"); - printf("\tif (!cnt) { CFLG = 0; } else {\n"); - printf("\tULONG carry;\n"); - printf("\tfor(;cnt;--cnt){\n"); - printf("\tcarry=val&cmask; val <<= 1;\n"); - printf("\tif(carry) val |= 1;\n"); - printf("\t}\n"); - printf("\tCFLG = carry!=0;\n}\n"); - printf("\tNFLG = (val & cmask) != 0; ZFLG = val == 0; VFLG = 0;\n"); - genastore("val", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data"); - break; - case i_ROR: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "cnt", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data", 1, 0); - start_brace (); - switch(table68k[opcode].size) { - case sz_byte: printf("\tUBYTE val = data;\n"); break; - case sz_word: printf("\tUWORD val = data;\n"); break; - case sz_long: printf("\tULONG val = data;\n"); break; - default: abort(); - } - switch(table68k[opcode].size) { - case sz_byte: printf("\tULONG cmask = 0x80;\n"); break; - case sz_word: printf("\tULONG cmask = 0x8000;\n"); break; - case sz_long: printf("\tULONG cmask = 0x80000000;\n"); break; - default: abort(); - } - printf("\tcnt &= 63;\n"); - printf("\tif (!cnt) { CFLG = 0; } else {"); - printf("\tULONG carry;\n"); - printf("\tfor(;cnt;--cnt){\n"); - printf("\tcarry=val&1; val = val >> 1;\n"); - printf("\tif(carry) val |= cmask;\n"); - printf("\t}\n"); - printf("\tCFLG = carry;\n}\n"); - printf("\tNFLG = (val & cmask) != 0; ZFLG = val == 0; VFLG = 0;\n"); - genastore("val", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data"); - break; - case i_ROXL: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "cnt", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data", 1, 0); - start_brace (); - switch(table68k[opcode].size) { - case sz_byte: printf("\tUBYTE val = data;\n"); break; - case sz_word: printf("\tUWORD val = data;\n"); break; - case sz_long: printf("\tULONG val = data;\n"); break; - default: abort(); - } - switch(table68k[opcode].size) { - case sz_byte: printf("\tULONG cmask = 0x80;\n"); break; - case sz_word: printf("\tULONG cmask = 0x8000;\n"); break; - case sz_long: printf("\tULONG cmask = 0x80000000;\n"); break; - default: abort(); - } - printf("\tULONG carry;\n"); - printf("\tcnt &= 63;\n"); - printf("\tfor(;cnt;--cnt){\n"); - printf("\tcarry=val&cmask; val <<= 1;\n"); - printf("\tif(XFLG) val |= 1;\n"); - printf("\tXFLG = carry != 0;\n"); - printf("\t}\n"); - printf("\tCFLG = XFLG;\n"); - printf("\tNFLG = (val & cmask) != 0; ZFLG = val == 0; VFLG = 0;\n"); - genastore("val", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data"); - break; - case i_ROXR: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "cnt", 1, 0); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data", 1, 0); - start_brace (); - switch(table68k[opcode].size) { - case sz_byte: printf("\tUBYTE val = data;\n"); break; - case sz_word: printf("\tUWORD val = data;\n"); break; - case sz_long: printf("\tULONG val = data;\n"); break; - default: abort(); - } - switch(table68k[opcode].size) { - case sz_byte: printf("\tULONG cmask = 0x80;\n"); break; - case sz_word: printf("\tULONG cmask = 0x8000;\n"); break; - case sz_long: printf("\tULONG cmask = 0x80000000;\n"); break; - default: abort(); - } - printf("\tULONG carry;\n"); - printf("\tcnt &= 63;\n"); - printf("\tfor(;cnt;--cnt){\n"); - printf("\tcarry=val&1; val >>= 1;\n"); - printf("\tif(XFLG) val |= cmask;\n"); - printf("\tXFLG = carry;\n"); - printf("\t}\n"); - printf("\tCFLG = XFLG;\n"); - printf("\tNFLG = (val & cmask) != 0; ZFLG = val == 0; VFLG = 0;\n"); - genastore("val", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "data"); - break; - case i_ASRW: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "data", 1, 0); - printf("\tVFLG = 0;\n"); - start_brace (); - switch(table68k[opcode].size) { - case sz_byte: printf("\tUBYTE val = data;\n"); break; - case sz_word: printf("\tUWORD val = data;\n"); break; - case sz_long: printf("\tULONG val = data;\n"); break; - default: abort(); - } - switch(table68k[opcode].size) { - case sz_byte: printf("\tULONG cmask = 0x80;\n"); break; - case sz_word: printf("\tULONG cmask = 0x8000;\n"); break; - case sz_long: printf("\tULONG cmask = 0x80000000;\n"); break; - default: abort(); - } - printf("\tULONG sign = cmask & val;\n"); - printf("\tCFLG=XFLG=val&1; val = (val >> 1) | sign;\n"); - printf("\tNFLG = sign != 0;\n"); - printf("\tZFLG = val == 0;\n"); - genastore("val", table68k[opcode].smode, "srcreg", table68k[opcode].size, "data"); - break; - case i_ASLW: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "data", 1, 0); - printf("\tVFLG = 0;\n"); - start_brace (); - switch(table68k[opcode].size) { - case sz_byte: printf("\tUBYTE val = data;\n"); break; - case sz_word: printf("\tUWORD val = data;\n"); break; - case sz_long: printf("\tULONG val = data;\n"); break; - default: abort(); - } - switch(table68k[opcode].size) { - case sz_byte: printf("\tULONG cmask = 0x80;\n"); break; - case sz_word: printf("\tULONG cmask = 0x8000;\n"); break; - case sz_long: printf("\tULONG cmask = 0x80000000;\n"); break; - default: abort(); - } - printf("\tULONG sign = cmask & val;\n"); - printf("\tCFLG=XFLG=(val&cmask)!=0; val <<= 1;\n"); - printf("\tif ((val&cmask)!=sign) VFLG=1;\n"); - printf("\tNFLG = (val&cmask) != 0;\n"); - printf("\tZFLG = val == 0;\n"); - genastore("val", table68k[opcode].smode, "srcreg", table68k[opcode].size, "data"); - break; - case i_LSRW: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "data", 1, 0); - start_brace (); - switch(table68k[opcode].size) { - case sz_byte: printf("\tUBYTE val = data;\n"); break; - case sz_word: printf("\tUWORD val = data;\n"); break; - case sz_long: printf("\tULONG val = data;\n"); break; - default: abort(); - } - printf("\tULONG carry = val&1;\n"); - printf("\tval >>= 1;\n"); - genflags(flag_logical, table68k[opcode].size, "val", "", ""); - printf("CFLG = XFLG = carry!=0;\n"); - genastore("val", table68k[opcode].smode, "srcreg", table68k[opcode].size, "data"); - break; - case i_LSLW: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "data", 1, 0); - start_brace (); - switch(table68k[opcode].size) { - case sz_byte: printf("\tUBYTE val = data;\n"); break; - case sz_word: printf("\tUWORD val = data;\n"); break; - case sz_long: printf("\tULONG val = data;\n"); break; - default: abort(); - } - switch(table68k[opcode].size) { - case sz_byte: printf("\tULONG cmask = 0x80;\n"); break; - case sz_word: printf("\tULONG cmask = 0x8000;\n"); break; - case sz_long: printf("\tULONG cmask = 0x80000000;\n"); break; - default: abort(); - } - printf("\tULONG carry = val&cmask;\n"); - printf("\tval <<= 1;\n"); - genflags(flag_logical, table68k[opcode].size, "val", "", ""); - printf("CFLG = XFLG = carry!=0;\n"); - genastore("val", table68k[opcode].smode, "srcreg", table68k[opcode].size, "data"); - break; - case i_ROLW: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "data", 1, 0); - start_brace (); - switch(table68k[opcode].size) { - case sz_byte: printf("\tUBYTE val = data;\n"); break; - case sz_word: printf("\tUWORD val = data;\n"); break; - case sz_long: printf("\tULONG val = data;\n"); break; - default: abort(); - } - switch(table68k[opcode].size) { - case sz_byte: printf("\tULONG cmask = 0x80;\n"); break; - case sz_word: printf("\tULONG cmask = 0x8000;\n"); break; - case sz_long: printf("\tULONG cmask = 0x80000000;\n"); break; - default: abort(); - } - printf("\tULONG carry = val&cmask;\n"); - printf("\tval <<= 1;\n"); - printf("\tif(carry) val |= 1;\n"); - genflags(flag_logical, table68k[opcode].size, "val", "", ""); - printf("CFLG = carry!=0;\n"); - genastore("val", table68k[opcode].smode, "srcreg", table68k[opcode].size, "data"); - break; - case i_RORW: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "data", 1, 0); - start_brace (); - switch(table68k[opcode].size) { - case sz_byte: printf("\tUBYTE val = data;\n"); break; - case sz_word: printf("\tUWORD val = data;\n"); break; - case sz_long: printf("\tULONG val = data;\n"); break; - default: abort(); - } - printf("\tULONG carry = val&1;\n"); - switch(table68k[opcode].size) { - case sz_byte: printf("\tULONG cmask = 0x80;\n"); break; - case sz_word: printf("\tULONG cmask = 0x8000;\n"); break; - case sz_long: printf("\tULONG cmask = 0x80000000;\n"); break; - default: abort(); - } - printf("\tval >>= 1;\n"); - printf("\tif(carry) val |= cmask;\n"); - genflags(flag_logical, table68k[opcode].size, "val", "", ""); - printf("CFLG = carry!=0;\n"); - genastore("val", table68k[opcode].smode, "srcreg", table68k[opcode].size, "data"); - break; - case i_ROXLW: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "data", 1, 0); - start_brace (); - switch(table68k[opcode].size) { - case sz_byte: printf("\tUBYTE val = data;\n"); break; - case sz_word: printf("\tUWORD val = data;\n"); break; - case sz_long: printf("\tULONG val = data;\n"); break; - default: abort(); - } - switch(table68k[opcode].size) { - case sz_byte: printf("\tULONG cmask = 0x80;\n"); break; - case sz_word: printf("\tULONG cmask = 0x8000;\n"); break; - case sz_long: printf("\tULONG cmask = 0x80000000;\n"); break; - default: abort(); - } - printf("\tULONG carry = val&cmask;\n"); - printf("\tval <<= 1;\n"); - printf("\tif(XFLG) val |= 1;\n"); - printf("\tXFLG = carry != 0;\n"); - genflags(flag_logical, table68k[opcode].size, "val", "", ""); - printf("XFLG = CFLG = carry!=0;\n"); - genastore("val", table68k[opcode].smode, "srcreg", table68k[opcode].size, "data"); - break; - case i_ROXRW: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "data", 1, 0); - start_brace (); - switch(table68k[opcode].size) { - case sz_byte: printf("\tUBYTE val = data;\n"); break; - case sz_word: printf("\tUWORD val = data;\n"); break; - case sz_long: printf("\tULONG val = data;\n"); break; - default: abort(); - } - printf("\tULONG carry = val&1;\n"); - switch(table68k[opcode].size) { - case sz_byte: printf("\tULONG cmask = 0x80;\n"); break; - case sz_word: printf("\tULONG cmask = 0x8000;\n"); break; - case sz_long: printf("\tULONG cmask = 0x80000000;\n"); break; - default: abort(); - } - printf("\tval >>= 1;\n"); - printf("\tif(XFLG) val |= cmask;\n"); - printf("\tXFLG = carry != 0;\n"); - genflags(flag_logical, table68k[opcode].size, "val", "", ""); - printf("XFLG = CFLG = carry!=0;\n"); - genastore("val", table68k[opcode].smode, "srcreg", table68k[opcode].size, "data"); - break; - case i_MOVEC2: - genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - start_brace(); - printf("\tint regno = (src >> 12) & 15;\n"); - printf("\tULONG *regp = regs.regs + regno;\n"); - printf("\tm68k_movec2(src & 0xFFF, regp);\n"); - break; - case i_MOVE2C: - genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - start_brace(); - printf("\tint regno = (src >> 12) & 15;\n"); - printf("\tULONG *regp = regs.regs + regno;\n"); - printf("\tm68k_move2c(src & 0xFFF, regp);\n"); - break; - case i_CAS: - { - int old_brace_level; - genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0); - start_brace(); - printf("\tint ru = (src >> 6) & 7;\n"); - printf("\tint rc = src & 7;\n"); - genflags(flag_cmp, table68k[opcode].size, "newv", "m68k_dreg(regs, rc)", "dst"); - printf("\tif (ZFLG)"); - old_brace_level = n_braces; - start_brace (); - genastore("(m68k_dreg(regs, ru))",table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst"); - pop_braces (old_brace_level); - printf("else"); - start_brace (); - printf("m68k_dreg(regs, rc) = dst;\n"); - pop_braces (old_brace_level); + printf ("\tSET_ZFLG (upper == reg || lower == reg);\n"); + printf ("\tSET_CFLG (lower <= upper ? reg < lower || reg > upper : reg > upper || reg < lower);\n"); + printf ("\tif ((extra & 0x800) && GET_CFLG) { Exception(6,oldpc); goto %s; }\n}\n", endlabelstr); + need_endlabel = 1; + break; + + case i_ASR: + genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0); + start_brace (); + switch (curi->size) { + case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break; + case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break; + case sz_long: printf ("\tuae_u32 val = data;\n"); break; + default: abort (); + } + printf ("\tuae_u32 sign = (%s & val) >> %d;\n", cmask (curi->size), bit_size (curi->size) - 1); + printf ("\tcnt &= 63;\n"); + printf ("\tCLEAR_CZNV;\n"); + printf ("\tif (cnt >= %d) {\n", bit_size (curi->size)); + printf ("\t\tval = %s & (uae_u32)-sign;\n", bit_mask (curi->size)); + printf ("\t\tSET_CFLG (sign);\n"); + duplicate_carry (); + if (source_is_imm1_8 (curi)) + printf ("\t} else {\n"); + else + printf ("\t} else if (cnt > 0) {\n"); + printf ("\t\tval >>= cnt - 1;\n"); + printf ("\t\tSET_CFLG (val & 1);\n"); + duplicate_carry (); + printf ("\t\tval >>= 1;\n"); + printf ("\t\tval |= (%s << (%d - cnt)) & (uae_u32)-sign;\n", + bit_mask (curi->size), + bit_size (curi->size)); + printf ("\t\tval &= %s;\n", bit_mask (curi->size)); + printf ("\t}\n"); + genflags (flag_logical_noclobber, curi->size, "val", "", ""); + genastore ("val", curi->dmode, "dstreg", curi->size, "data"); + break; + case i_ASL: + genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0); + start_brace (); + switch (curi->size) { + case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break; + case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break; + case sz_long: printf ("\tuae_u32 val = data;\n"); break; + default: abort (); + } + printf ("\tcnt &= 63;\n"); + printf ("\tCLEAR_CZNV;\n"); + printf ("\tif (cnt >= %d) {\n", bit_size (curi->size)); + printf ("\t\tSET_VFLG (val != 0);\n"); + printf ("\t\tSET_CFLG (cnt == %d ? val & 1 : 0);\n", + bit_size (curi->size)); + duplicate_carry (); + printf ("\t\tval = 0;\n"); + if (source_is_imm1_8 (curi)) + printf ("\t} else {\n"); + else + printf ("\t} else if (cnt > 0) {\n"); + printf ("\t\tuae_u32 mask = (%s << (%d - cnt)) & %s;\n", + bit_mask (curi->size), + bit_size (curi->size) - 1, + bit_mask (curi->size)); + printf ("\t\tSET_VFLG ((val & mask) != mask && (val & mask) != 0);\n"); + printf ("\t\tval <<= cnt - 1;\n"); + printf ("\t\tSET_CFLG ((val & %s) >> %d);\n", cmask (curi->size), bit_size (curi->size) - 1); + duplicate_carry (); + printf ("\t\tval <<= 1;\n"); + printf ("\t\tval &= %s;\n", bit_mask (curi->size)); + printf ("\t}\n"); + genflags (flag_logical_noclobber, curi->size, "val", "", ""); + genastore ("val", curi->dmode, "dstreg", curi->size, "data"); + break; + case i_LSR: + genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0); + start_brace (); + switch (curi->size) { + case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break; + case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break; + case sz_long: printf ("\tuae_u32 val = data;\n"); break; + default: abort (); + } + printf ("\tcnt &= 63;\n"); + printf ("\tCLEAR_CZNV;\n"); + printf ("\tif (cnt >= %d) {\n", bit_size (curi->size)); + printf ("\t\tSET_CFLG ((cnt == %d) & (val >> %d));\n", + bit_size (curi->size), bit_size (curi->size) - 1); + duplicate_carry (); + printf ("\t\tval = 0;\n"); + if (source_is_imm1_8 (curi)) + printf ("\t} else {\n"); + else + printf ("\t} else if (cnt > 0) {\n"); + printf ("\t\tval >>= cnt - 1;\n"); + printf ("\t\tSET_CFLG (val & 1);\n"); + duplicate_carry (); + printf ("\t\tval >>= 1;\n"); + printf ("\t}\n"); + genflags (flag_logical_noclobber, curi->size, "val", "", ""); + genastore ("val", curi->dmode, "dstreg", curi->size, "data"); + break; + case i_LSL: + genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0); + start_brace (); + switch (curi->size) { + case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break; + case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break; + case sz_long: printf ("\tuae_u32 val = data;\n"); break; + default: abort (); + } + printf ("\tcnt &= 63;\n"); + printf ("\tCLEAR_CZNV;\n"); + printf ("\tif (cnt >= %d) {\n", bit_size (curi->size)); + printf ("\t\tSET_CFLG (cnt == %d ? val & 1 : 0);\n", + bit_size (curi->size)); + duplicate_carry (); + printf ("\t\tval = 0;\n"); + if (source_is_imm1_8 (curi)) + printf ("\t} else {\n"); + else + printf ("\t} else if (cnt > 0) {\n"); + printf ("\t\tval <<= (cnt - 1);\n"); + printf ("\t\tSET_CFLG ((val & %s) >> %d);\n", cmask (curi->size), bit_size (curi->size) - 1); + duplicate_carry (); + printf ("\t\tval <<= 1;\n"); + printf ("\tval &= %s;\n", bit_mask (curi->size)); + printf ("\t}\n"); + genflags (flag_logical_noclobber, curi->size, "val", "", ""); + genastore ("val", curi->dmode, "dstreg", curi->size, "data"); + break; + case i_ROL: + genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0); + start_brace (); + switch (curi->size) { + case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break; + case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break; + case sz_long: printf ("\tuae_u32 val = data;\n"); break; + default: abort (); + } + printf ("\tcnt &= 63;\n"); + printf ("\tCLEAR_CZNV;\n"); + if (source_is_imm1_8 (curi)) + printf ("{"); + else + printf ("\tif (cnt > 0) {\n"); + printf ("\tuae_u32 loval;\n"); + printf ("\tcnt &= %d;\n", bit_size (curi->size) - 1); + printf ("\tloval = val >> (%d - cnt);\n", bit_size (curi->size)); + printf ("\tval <<= cnt;\n"); + printf ("\tval |= loval;\n"); + printf ("\tval &= %s;\n", bit_mask (curi->size)); + printf ("\tSET_CFLG (val & 1);\n"); + printf ("}\n"); + genflags (flag_logical_noclobber, curi->size, "val", "", ""); + genastore ("val", curi->dmode, "dstreg", curi->size, "data"); + break; + case i_ROR: + genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0); + start_brace (); + switch (curi->size) { + case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break; + case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break; + case sz_long: printf ("\tuae_u32 val = data;\n"); break; + default: abort (); + } + printf ("\tcnt &= 63;\n"); + printf ("\tCLEAR_CZNV;\n"); + if (source_is_imm1_8 (curi)) + printf ("{"); + else + printf ("\tif (cnt > 0) {"); + printf ("\tuae_u32 hival;\n"); + printf ("\tcnt &= %d;\n", bit_size (curi->size) - 1); + printf ("\thival = val << (%d - cnt);\n", bit_size (curi->size)); + printf ("\tval >>= cnt;\n"); + printf ("\tval |= hival;\n"); + printf ("\tval &= %s;\n", bit_mask (curi->size)); + printf ("\tSET_CFLG ((val & %s) >> %d);\n", cmask (curi->size), bit_size (curi->size) - 1); + printf ("\t}\n"); + genflags (flag_logical_noclobber, curi->size, "val", "", ""); + genastore ("val", curi->dmode, "dstreg", curi->size, "data"); + break; + case i_ROXL: + genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0); + start_brace (); + switch (curi->size) { + case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break; + case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break; + case sz_long: printf ("\tuae_u32 val = data;\n"); break; + default: abort (); + } + printf ("\tcnt &= 63;\n"); + printf ("\tCLEAR_CZNV;\n"); + if (source_is_imm1_8 (curi)) + printf ("{"); + else { + force_range_for_rox ("cnt", curi->size); + printf ("\tif (cnt > 0) {\n"); } - break; - case i_CAS2: - genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0); - printf("\tULONG rn1 = regs.regs[(extra >> 28) & 7];\n"); - printf("\tULONG rn2 = regs.regs[(extra >> 12) & 7];\n"); - if (table68k[opcode].size == sz_word) { - int old_brace_level = n_braces; - printf("\tUWORD dst1 = get_word(rn1), dst2 = get_word(rn2);\n"); - genflags(flag_cmp, table68k[opcode].size, "newv", "m68k_dreg(regs, (extra >> 16) & 7)", "dst1"); - printf("\tif (ZFLG) {\n"); - genflags(flag_cmp, table68k[opcode].size, "newv", "m68k_dreg(regs, extra & 7)", "dst2"); - printf("\tif (ZFLG) {\n"); - printf("\tput_word(rn1, m68k_dreg(regs, (extra >> 22) & 7));\n"); - printf("\tput_word(rn1, m68k_dreg(regs, (extra >> 6) & 7));\n"); - printf("\t}}\n"); - pop_braces (old_brace_level); - printf("\tif (!ZFLG) {\n"); - printf("\tm68k_dreg(regs, (extra >> 22) & 7) = (m68k_dreg(regs, (extra >> 22) & 7) & ~0xffff) | (dst1 & 0xffff);\n"); - printf("\tm68k_dreg(regs, (extra >> 6) & 7) = (m68k_dreg(regs, (extra >> 6) & 7) & ~0xffff) | (dst2 & 0xffff);\n"); - printf("\t}\n"); - } else { - int old_brace_level = n_braces; - printf("\tULONG dst1 = get_long(rn1), dst2 = get_long(rn2);\n"); - genflags(flag_cmp, table68k[opcode].size, "newv", "m68k_dreg(regs, (extra >> 16) & 7)", "dst1"); - printf("\tif (ZFLG) {\n"); - genflags(flag_cmp, table68k[opcode].size, "newv", "m68k_dreg(regs, extra & 7)", "dst2"); - printf("\tif (ZFLG) {\n"); - printf("\tput_long(rn1, m68k_dreg(regs, (extra >> 22) & 7));\n"); - printf("\tput_long(rn1, m68k_dreg(regs, (extra >> 6) & 7));\n"); - printf("\t}}\n"); - pop_braces (old_brace_level); - printf("\tif (!ZFLG) {\n"); - printf("\tm68k_dreg(regs, (extra >> 22) & 7) = dst1;\n"); - printf("\tm68k_dreg(regs, (extra >> 6) & 7) = dst2;\n"); - printf("\t}\n"); + printf ("\tcnt--;\n"); + printf ("\t{\n\tuae_u32 carry;\n"); + printf ("\tuae_u32 loval = val >> (%d - cnt);\n", bit_size (curi->size) - 1); + printf ("\tcarry = loval & 1;\n"); + printf ("\tval = (((val << 1) | GET_XFLG) << cnt) | (loval >> 1);\n"); + printf ("\tSET_XFLG (carry);\n"); + printf ("\tval &= %s;\n", bit_mask (curi->size)); + printf ("\t} }\n"); + printf ("\tSET_CFLG (GET_XFLG);\n"); + genflags (flag_logical_noclobber, curi->size, "val", "", ""); + genastore ("val", curi->dmode, "dstreg", curi->size, "data"); + break; + case i_ROXR: + genamode (curi->smode, "srcreg", curi->size, "cnt", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "data", 1, 0); + start_brace (); + switch (curi->size) { + case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break; + case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break; + case sz_long: printf ("\tuae_u32 val = data;\n"); break; + default: abort (); + } + printf ("\tcnt &= 63;\n"); + printf ("\tCLEAR_CZNV;\n"); + if (source_is_imm1_8 (curi)) + printf ("{"); + else { + force_range_for_rox ("cnt", curi->size); + printf ("\tif (cnt > 0) {\n"); } + printf ("\tcnt--;\n"); + printf ("\t{\n\tuae_u32 carry;\n"); + printf ("\tuae_u32 hival = (val << 1) | GET_XFLG;\n"); + printf ("\thival <<= (%d - cnt);\n", bit_size (curi->size) - 1); + printf ("\tval >>= cnt;\n"); + printf ("\tcarry = val & 1;\n"); + printf ("\tval >>= 1;\n"); + printf ("\tval |= hival;\n"); + printf ("\tSET_XFLG (carry);\n"); + printf ("\tval &= %s;\n", bit_mask (curi->size)); + printf ("\t} }\n"); + printf ("\tSET_CFLG (GET_XFLG);\n"); + genflags (flag_logical_noclobber, curi->size, "val", "", ""); + genastore ("val", curi->dmode, "dstreg", curi->size, "data"); + break; + case i_ASRW: + genamode (curi->smode, "srcreg", curi->size, "data", 1, 0); + start_brace (); + switch (curi->size) { + case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break; + case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break; + case sz_long: printf ("\tuae_u32 val = data;\n"); break; + default: abort (); + } + printf ("\tuae_u32 sign = %s & val;\n", cmask (curi->size)); + printf ("\tuae_u32 cflg = val & 1;\n"); + printf ("\tval = (val >> 1) | sign;\n"); + genflags (flag_logical, curi->size, "val", "", ""); + printf ("\tSET_CFLG (cflg);\n"); + duplicate_carry (); + genastore ("val", curi->smode, "srcreg", curi->size, "data"); + break; + case i_ASLW: + genamode (curi->smode, "srcreg", curi->size, "data", 1, 0); + start_brace (); + switch (curi->size) { + case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break; + case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break; + case sz_long: printf ("\tuae_u32 val = data;\n"); break; + default: abort (); + } + printf ("\tuae_u32 sign = %s & val;\n", cmask (curi->size)); + printf ("\tuae_u32 sign2;\n"); + printf ("\tval <<= 1;\n"); + genflags (flag_logical, curi->size, "val", "", ""); + printf ("\tsign2 = %s & val;\n", cmask (curi->size)); + printf ("\tSET_CFLG (sign != 0);\n"); + duplicate_carry (); + + printf ("\tSET_VFLG (GET_VFLG | (sign2 != sign));\n"); + genastore ("val", curi->smode, "srcreg", curi->size, "data"); + break; + case i_LSRW: + genamode (curi->smode, "srcreg", curi->size, "data", 1, 0); + start_brace (); + switch (curi->size) { + case sz_byte: printf ("\tuae_u32 val = (uae_u8)data;\n"); break; + case sz_word: printf ("\tuae_u32 val = (uae_u16)data;\n"); break; + case sz_long: printf ("\tuae_u32 val = data;\n"); break; + default: abort (); + } + printf ("\tuae_u32 carry = val & 1;\n"); + printf ("\tval >>= 1;\n"); + genflags (flag_logical, curi->size, "val", "", ""); + printf ("SET_CFLG (carry);\n"); + duplicate_carry (); + genastore ("val", curi->smode, "srcreg", curi->size, "data"); + break; + case i_LSLW: + genamode (curi->smode, "srcreg", curi->size, "data", 1, 0); + start_brace (); + switch (curi->size) { + case sz_byte: printf ("\tuae_u8 val = data;\n"); break; + case sz_word: printf ("\tuae_u16 val = data;\n"); break; + case sz_long: printf ("\tuae_u32 val = data;\n"); break; + default: abort (); + } + printf ("\tuae_u32 carry = val & %s;\n", cmask (curi->size)); + printf ("\tval <<= 1;\n"); + genflags (flag_logical, curi->size, "val", "", ""); + printf ("SET_CFLG (carry >> %d);\n", bit_size (curi->size) - 1); + duplicate_carry (); + genastore ("val", curi->smode, "srcreg", curi->size, "data"); + break; + case i_ROLW: + genamode (curi->smode, "srcreg", curi->size, "data", 1, 0); + start_brace (); + switch (curi->size) { + case sz_byte: printf ("\tuae_u8 val = data;\n"); break; + case sz_word: printf ("\tuae_u16 val = data;\n"); break; + case sz_long: printf ("\tuae_u32 val = data;\n"); break; + default: abort (); + } + printf ("\tuae_u32 carry = val & %s;\n", cmask (curi->size)); + printf ("\tval <<= 1;\n"); + printf ("\tif (carry) val |= 1;\n"); + genflags (flag_logical, curi->size, "val", "", ""); + printf ("SET_CFLG (carry >> %d);\n", bit_size (curi->size) - 1); + genastore ("val", curi->smode, "srcreg", curi->size, "data"); + break; + case i_RORW: + genamode (curi->smode, "srcreg", curi->size, "data", 1, 0); + start_brace (); + switch (curi->size) { + case sz_byte: printf ("\tuae_u8 val = data;\n"); break; + case sz_word: printf ("\tuae_u16 val = data;\n"); break; + case sz_long: printf ("\tuae_u32 val = data;\n"); break; + default: abort (); + } + printf ("\tuae_u32 carry = val & 1;\n"); + printf ("\tval >>= 1;\n"); + printf ("\tif (carry) val |= %s;\n", cmask (curi->size)); + genflags (flag_logical, curi->size, "val", "", ""); + printf ("SET_CFLG (carry);\n"); + genastore ("val", curi->smode, "srcreg", curi->size, "data"); + break; + case i_ROXLW: + genamode (curi->smode, "srcreg", curi->size, "data", 1, 0); + start_brace (); + switch (curi->size) { + case sz_byte: printf ("\tuae_u8 val = data;\n"); break; + case sz_word: printf ("\tuae_u16 val = data;\n"); break; + case sz_long: printf ("\tuae_u32 val = data;\n"); break; + default: abort (); + } + printf ("\tuae_u32 carry = val & %s;\n", cmask (curi->size)); + printf ("\tval <<= 1;\n"); + printf ("\tif (GET_XFLG) val |= 1;\n"); + genflags (flag_logical, curi->size, "val", "", ""); + printf ("SET_CFLG (carry >> %d);\n", bit_size (curi->size) - 1); + duplicate_carry (); + genastore ("val", curi->smode, "srcreg", curi->size, "data"); + break; + case i_ROXRW: + genamode (curi->smode, "srcreg", curi->size, "data", 1, 0); + start_brace (); + switch (curi->size) { + case sz_byte: printf ("\tuae_u8 val = data;\n"); break; + case sz_word: printf ("\tuae_u16 val = data;\n"); break; + case sz_long: printf ("\tuae_u32 val = data;\n"); break; + default: abort (); + } + printf ("\tuae_u32 carry = val & 1;\n"); + printf ("\tval >>= 1;\n"); + printf ("\tif (GET_XFLG) val |= %s;\n", cmask (curi->size)); + genflags (flag_logical, curi->size, "val", "", ""); + printf ("SET_CFLG (carry);\n"); + duplicate_carry (); + genastore ("val", curi->smode, "srcreg", curi->size, "data"); + break; + case i_MOVEC2: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + start_brace (); + printf ("\tint regno = (src >> 12) & 15;\n"); + printf ("\tuae_u32 *regp = regs.regs + regno;\n"); + printf ("\tif (! m68k_movec2(src & 0xFFF, regp)) goto %s;\n", endlabelstr); + break; + case i_MOVE2C: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + start_brace (); + printf ("\tint regno = (src >> 12) & 15;\n"); + printf ("\tuae_u32 *regp = regs.regs + regno;\n"); + printf ("\tif (! m68k_move2c(src & 0xFFF, regp)) goto %s;\n", endlabelstr); break; - case i_MOVES: /* ignore DFC and SFC because we have no MMU */ - { - int old_brace_level; - genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0); - printf("\tif (extra & 0x800)\n"); - old_brace_level = n_braces; - start_brace (); - printf("\tULONG src = regs.regs[(extra >> 12) & 15];\n"); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 0, 0); - genastore("src", table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst"); + case i_CAS: + { + int old_brace_level; + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0); + start_brace (); + printf ("\tint ru = (src >> 6) & 7;\n"); + printf ("\tint rc = src & 7;\n"); + genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, rc)", "dst"); + printf ("\tif (GET_ZFLG)"); + old_brace_level = n_braces; + start_brace (); + genastore ("(m68k_dreg(regs, ru))", curi->dmode, "dstreg", curi->size, "dst"); + pop_braces (old_brace_level); + printf ("else"); + start_brace (); + printf ("m68k_dreg(regs, rc) = dst;\n"); + pop_braces (old_brace_level); + } + break; + case i_CAS2: + genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0); + printf ("\tuae_u32 rn1 = regs.regs[(extra >> 28) & 15];\n"); + printf ("\tuae_u32 rn2 = regs.regs[(extra >> 12) & 15];\n"); + if (curi->size == sz_word) { + int old_brace_level = n_braces; + printf ("\tuae_u16 dst1 = get_word(rn1), dst2 = get_word(rn2);\n"); + genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, (extra >> 16) & 7)", "dst1"); + printf ("\tif (GET_ZFLG) {\n"); + genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, extra & 7)", "dst2"); + printf ("\tif (GET_ZFLG) {\n"); + printf ("\tput_word(rn1, m68k_dreg(regs, (extra >> 22) & 7));\n"); + printf ("\tput_word(rn1, m68k_dreg(regs, (extra >> 6) & 7));\n"); + printf ("\t}}\n"); pop_braces (old_brace_level); - printf("else"); - start_brace (); - genamode(table68k[opcode].dmode, "dstreg", table68k[opcode].size, "src", 1, 0); - printf("\tif (extra & 0x8000) {\n"); - switch(table68k[opcode].size) { - case sz_byte: printf("\tm68k_areg(regs, (extra >> 12) & 7) = (LONG)(BYTE)src;\n"); break; - case sz_word: printf("\tm68k_areg(regs, (extra >> 12) & 7) = (LONG)(WORD)src;\n"); break; - case sz_long: printf("\tm68k_areg(regs, (extra >> 12) & 7) = src;\n"); break; - default: abort(); - } - printf("\t} else {\n"); - genastore("src", Dreg, "(extra >> 12) & 7", table68k[opcode].size, ""); - printf("\t}\n"); + printf ("\tif (! GET_ZFLG) {\n"); + printf ("\tm68k_dreg(regs, (extra >> 22) & 7) = (m68k_dreg(regs, (extra >> 22) & 7) & ~0xffff) | (dst1 & 0xffff);\n"); + printf ("\tm68k_dreg(regs, (extra >> 6) & 7) = (m68k_dreg(regs, (extra >> 6) & 7) & ~0xffff) | (dst2 & 0xffff);\n"); + printf ("\t}\n"); + } else { + int old_brace_level = n_braces; + printf ("\tuae_u32 dst1 = get_long(rn1), dst2 = get_long(rn2);\n"); + genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, (extra >> 16) & 7)", "dst1"); + printf ("\tif (GET_ZFLG) {\n"); + genflags (flag_cmp, curi->size, "newv", "m68k_dreg(regs, extra & 7)", "dst2"); + printf ("\tif (GET_ZFLG) {\n"); + printf ("\tput_long(rn1, m68k_dreg(regs, (extra >> 22) & 7));\n"); + printf ("\tput_long(rn1, m68k_dreg(regs, (extra >> 6) & 7));\n"); + printf ("\t}}\n"); pop_braces (old_brace_level); + printf ("\tif (! GET_ZFLG) {\n"); + printf ("\tm68k_dreg(regs, (extra >> 22) & 7) = dst1;\n"); + printf ("\tm68k_dreg(regs, (extra >> 6) & 7) = dst2;\n"); + printf ("\t}\n"); } break; - case i_BKPT: /* only needed for hardware emulators */ - printf("\top_illg(opcode);\n"); - break; - case i_CALLM: /* not present in 68030 */ - printf("\top_illg(opcode);\n"); - break; - case i_RTM: /* not present in 68030 */ - printf("\top_illg(opcode);\n"); - break; - case i_TRAPcc: - printf("\tCPTR oldpc = m68k_getpc();\n"); - if (table68k[opcode].smode != am_unknown && table68k[opcode].smode != am_illg) - genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "dummy", 1, 0); - printf("\tif (cctrue(%d)) Exception(7,oldpc-2);\n", table68k[opcode].cc); - break; - case i_DIVL: - printf("\tCPTR oldpc = m68k_getpc();\n"); - genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0); - genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0); - printf("\tm68k_divl(opcode, dst, extra, oldpc);\n"); - break; - case i_MULL: - genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0); - genamode (table68k[opcode].dmode, "dstreg", table68k[opcode].size, "dst", 1, 0); - printf("\tm68k_mull(opcode, dst, extra);\n"); - break; - case i_BFTST: - case i_BFEXTU: - case i_BFCHG: - case i_BFEXTS: - case i_BFCLR: - case i_BFFFO: - case i_BFSET: - case i_BFINS: - genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0); - genamode (table68k[opcode].dmode, "dstreg", sz_long, "dst", 0, 0); - start_brace(); - printf("\tLONG offset = extra & 0x800 ? m68k_dreg(regs, (extra >> 6) & 7) : (extra >> 6) & 0x1f;\n"); - printf("\tint width = (((extra & 0x20 ? m68k_dreg(regs, extra & 7) : extra) -1) & 0x1f) +1;\n"); - if (table68k[opcode].dmode == Dreg) { - printf("\tULONG tmp = m68k_dreg(regs, dstreg) << (offset & 0x1f);\n"); - } - else { - printf("\tULONG tmp,bf0,bf1;\n"); - printf("\tdsta += (offset >> 3) | (offset & 0x80000000 ? ~0x1fffffff : 0);\n"); - printf("\tbf0 = get_long(dsta);bf1 = get_byte(dsta+4) & 0xff;\n"); - printf("\ttmp = (bf0 << (offset & 7)) | (bf1 >> (8 - (offset & 7)));\n"); - } - printf("\ttmp >>= (32 - width);\n"); - printf("\tNFLG = tmp & (1 << (width-1)) ? 1 : 0;ZFLG = tmp == 0;VFLG = 0;CFLG = 0;\n"); - switch(table68k[opcode].mnemo) { + case i_MOVES: /* ignore DFC and SFC because we have no MMU */ + { + int old_brace_level; + genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0); + printf ("\tif (extra & 0x800)\n"); + old_brace_level = n_braces; + start_brace (); + printf ("\tuae_u32 src = regs.regs[(extra >> 12) & 15];\n"); + genamode (curi->dmode, "dstreg", curi->size, "dst", 2, 0); + genastore ("src", curi->dmode, "dstreg", curi->size, "dst"); + pop_braces (old_brace_level); + printf ("else"); + start_brace (); + genamode (curi->dmode, "dstreg", curi->size, "src", 1, 0); + printf ("\tif (extra & 0x8000) {\n"); + switch (curi->size) { + case sz_byte: printf ("\tm68k_areg(regs, (extra >> 12) & 7) = (uae_s32)(uae_s8)src;\n"); break; + case sz_word: printf ("\tm68k_areg(regs, (extra >> 12) & 7) = (uae_s32)(uae_s16)src;\n"); break; + case sz_long: printf ("\tm68k_areg(regs, (extra >> 12) & 7) = src;\n"); break; + default: abort (); + } + printf ("\t} else {\n"); + genastore ("src", Dreg, "(extra >> 12) & 7", curi->size, ""); + printf ("\t}\n"); + pop_braces (old_brace_level); + } + break; + case i_BKPT: /* only needed for hardware emulators */ + sync_m68k_pc (); + printf ("\top_illg(opcode);\n"); + break; + case i_CALLM: /* not present in 68030 */ + sync_m68k_pc (); + printf ("\top_illg(opcode);\n"); + break; + case i_RTM: /* not present in 68030 */ + sync_m68k_pc (); + printf ("\top_illg(opcode);\n"); + break; + case i_TRAPcc: + if (curi->smode != am_unknown && curi->smode != am_illg) + genamode (curi->smode, "srcreg", curi->size, "dummy", 1, 0); + printf ("\tif (cctrue(%d)) { Exception(7,m68k_getpc()); goto %s; }\n", curi->cc, endlabelstr); + need_endlabel = 1; + break; + case i_DIVL: + sync_m68k_pc (); + start_brace (); + printf ("\tuaecptr oldpc = m68k_getpc();\n"); + genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0); + sync_m68k_pc (); + printf ("\tm68k_divl(opcode, dst, extra, oldpc);\n"); + break; + case i_MULL: + genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0); + genamode (curi->dmode, "dstreg", curi->size, "dst", 1, 0); + sync_m68k_pc (); + printf ("\tm68k_mull(opcode, dst, extra);\n"); + break; + case i_BFTST: + case i_BFEXTU: + case i_BFCHG: + case i_BFEXTS: + case i_BFCLR: + case i_BFFFO: + case i_BFSET: + case i_BFINS: + genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0); + genamode (curi->dmode, "dstreg", sz_long, "dst", 2, 0); + start_brace (); + printf ("\tuae_s32 offset = extra & 0x800 ? m68k_dreg(regs, (extra >> 6) & 7) : (extra >> 6) & 0x1f;\n"); + printf ("\tint width = (((extra & 0x20 ? m68k_dreg(regs, extra & 7) : extra) -1) & 0x1f) +1;\n"); + if (curi->dmode == Dreg) { + printf ("\tuae_u32 tmp = m68k_dreg(regs, dstreg) << (offset & 0x1f);\n"); + } else { + printf ("\tuae_u32 tmp,bf0,bf1;\n"); + printf ("\tdsta += (offset >> 3) | (offset & 0x80000000 ? ~0x1fffffff : 0);\n"); + printf ("\tbf0 = get_long(dsta);bf1 = get_byte(dsta+4) & 0xff;\n"); + printf ("\ttmp = (bf0 << (offset & 7)) | (bf1 >> (8 - (offset & 7)));\n"); + } + printf ("\ttmp >>= (32 - width);\n"); + printf ("\tSET_NFLG (tmp & (1 << (width-1)) ? 1 : 0);\n"); + printf ("\tSET_ZFLG (tmp == 0); SET_VFLG (0); SET_CFLG (0);\n"); + switch (curi->mnemo) { case i_BFTST: - break; + break; case i_BFEXTU: - printf("\tm68k_dreg(regs, (extra >> 12) & 7) = tmp;\n"); - break; + printf ("\tm68k_dreg(regs, (extra >> 12) & 7) = tmp;\n"); + break; case i_BFCHG: - printf("\ttmp = ~tmp;\n"); - break; + printf ("\ttmp = ~tmp;\n"); + break; case i_BFEXTS: - printf("\tif (NFLG) tmp |= width == 32 ? 0 : (-1 << width);\n"); - printf("\tm68k_dreg(regs, (extra >> 12) & 7) = tmp;\n"); - break; + printf ("\tif (GET_NFLG) tmp |= width == 32 ? 0 : (-1 << width);\n"); + printf ("\tm68k_dreg(regs, (extra >> 12) & 7) = tmp;\n"); + break; case i_BFCLR: - printf("\ttmp = 0;\n"); - break; + printf ("\ttmp = 0;\n"); + break; case i_BFFFO: - printf("\t{ ULONG mask = 1 << (width-1);\n"); - printf("\twhile (mask) { if (tmp & mask) break; mask >>= 1; offset++; }}\n"); - printf("\tm68k_dreg(regs, (extra >> 12) & 7) = offset;\n"); - break; + printf ("\t{ uae_u32 mask = 1 << (width-1);\n"); + printf ("\twhile (mask) { if (tmp & mask) break; mask >>= 1; offset++; }}\n"); + printf ("\tm68k_dreg(regs, (extra >> 12) & 7) = offset;\n"); + break; case i_BFSET: - printf("\ttmp = 0xffffffff;\n"); - break; + printf ("\ttmp = 0xffffffff;\n"); + break; case i_BFINS: - printf("\ttmp = m68k_dreg(regs, (extra >> 12) & 7);\n"); - break; + printf ("\ttmp = m68k_dreg(regs, (extra >> 12) & 7);\n"); + printf ("\tSET_NFLG (tmp & (1 << (width - 1)) ? 1 : 0);\n"); + printf ("\tSET_ZFLG (tmp == 0);\n"); + break; default: - break; + break; } - if (table68k[opcode].mnemo == i_BFCHG || - table68k[opcode].mnemo == i_BFCLR || - table68k[opcode].mnemo == i_BFSET || - table68k[opcode].mnemo == i_BFINS) { - printf("\ttmp <<= (32 - width);\n"); - if (table68k[opcode].dmode == Dreg) { - printf("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & ((offset & 0x1f) == 0 ? 0 :\n"); - printf("\t\t(0xffffffff << (32 - (offset & 0x1f))))) |\n"); - printf("\t\t(tmp >> (offset & 0x1f)) |\n"); - printf("\t\t(((offset & 0x1f) + width) >= 32 ? 0 :\n"); - printf(" (m68k_dreg(regs, dstreg) & ((ULONG)0xffffffff >> ((offset & 0x1f) + width))));\n"); - } - else { - printf("\tbf0 = (bf0 & (0xff000000 << (8 - (offset & 7)))) |\n"); - printf("\t\t(tmp >> (offset & 7)) |\n"); - printf("\t\t(((offset & 7) + width) >= 32 ? 0 :\n"); - printf("\t\t (bf0 & ((ULONG)0xffffffff >> ((offset & 7) + width))));\n"); - printf("\tput_long(dsta,bf0 );\n"); - printf("\tif (((offset & 7) + width) > 32) {\n"); - printf("\t\tbf1 = (bf1 & (0xff >> (width - 32 + (offset & 7)))) |\n"); - printf("\t\t\t(tmp << (8 - (offset & 7)));\n"); - printf("\t\tput_byte(dsta+4,bf1);\n"); - printf("\t}\n"); + if (curi->mnemo == i_BFCHG + || curi->mnemo == i_BFCLR + || curi->mnemo == i_BFSET + || curi->mnemo == i_BFINS) + { + printf ("\ttmp <<= (32 - width);\n"); + if (curi->dmode == Dreg) { + printf ("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & ((offset & 0x1f) == 0 ? 0 :\n"); + printf ("\t\t(0xffffffff << (32 - (offset & 0x1f))))) |\n"); + printf ("\t\t(tmp >> (offset & 0x1f)) |\n"); + printf ("\t\t(((offset & 0x1f) + width) >= 32 ? 0 :\n"); + printf (" (m68k_dreg(regs, dstreg) & ((uae_u32)0xffffffff >> ((offset & 0x1f) + width))));\n"); + } else { + printf ("\tbf0 = (bf0 & (0xff000000 << (8 - (offset & 7)))) |\n"); + printf ("\t\t(tmp >> (offset & 7)) |\n"); + printf ("\t\t(((offset & 7) + width) >= 32 ? 0 :\n"); + printf ("\t\t (bf0 & ((uae_u32)0xffffffff >> ((offset & 7) + width))));\n"); + printf ("\tput_long(dsta,bf0 );\n"); + printf ("\tif (((offset & 7) + width) > 32) {\n"); + printf ("\t\tbf1 = (bf1 & (0xff >> (width - 32 + (offset & 7)))) |\n"); + printf ("\t\t\t(tmp << (8 - (offset & 7)));\n"); + printf ("\t\tput_byte(dsta+4,bf1);\n"); + printf ("\t}\n"); } - } + } break; - case i_PACK: - if (table68k[opcode].smode == Dreg) { - printf("\tUWORD val = m68k_dreg(regs, srcreg) + nextiword();\n"); - printf("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & 0xffffff00) | ((val >> 4) & 0xf0) | (val & 0xf);\n"); - } - else { - printf("\tUWORD val;\n"); - printf("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n"); - printf("\tval = (UWORD)get_byte(m68k_areg(regs, srcreg));\n"); - printf("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n"); - printf("\tval = (val | ((UWORD)get_byte(m68k_areg(regs, srcreg)) << 8)) + nextiword();\n"); - printf("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n"); - printf("\tput_byte(m68k_areg(regs, dstreg),((val >> 4) & 0xf0) | (val & 0xf));\n"); + case i_PACK: + if (curi->smode == Dreg) { + printf ("\tuae_u16 val = m68k_dreg(regs, srcreg) + %s;\n", gen_nextiword ()); + printf ("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & 0xffffff00) | ((val >> 4) & 0xf0) | (val & 0xf);\n"); + } else { + printf ("\tuae_u16 val;\n"); + printf ("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n"); + printf ("\tval = (uae_u16)get_byte(m68k_areg(regs, srcreg));\n"); + printf ("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n"); + printf ("\tval = (val | ((uae_u16)get_byte(m68k_areg(regs, srcreg)) << 8)) + %s;\n", gen_nextiword ()); + printf ("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n"); + printf ("\tput_byte(m68k_areg(regs, dstreg),((val >> 4) & 0xf0) | (val & 0xf));\n"); } break; - case i_UNPK: - if (table68k[opcode].smode == Dreg) { - printf("\tUWORD val = m68k_dreg(regs, srcreg);\n"); - printf("\tval = (((val << 4) & 0xf00) | (val & 0xf)) + nextiword();\n"); - printf("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & 0xffff0000) | (val & 0xffff);\n"); - } - else { - printf("\tUWORD val;\n"); - printf("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n"); - printf("\tval = (UWORD)get_byte(m68k_areg(regs, srcreg));\n"); - printf("\tval = (((val << 4) & 0xf00) | (val & 0xf)) + nextiword();\n"); - printf("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n"); - printf("\tput_byte(m68k_areg(regs, dstreg),val);\n"); - printf("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n"); - printf("\tput_byte(m68k_areg(regs, dstreg),val >> 8);\n"); - } - break; - case i_TAS: - genamode(table68k[opcode].smode, "srcreg", table68k[opcode].size, "src", 1, 0); - genflags(flag_logical, table68k[opcode].size, "src", "", ""); - printf("\tsrc |= 0x80;\n"); - genastore("src", table68k[opcode].smode, "srcreg", table68k[opcode].size, "src"); - break; - case i_FPP: - genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0); - printf("\tfpp_opp(opcode,extra);\n"); - break; - case i_FDBcc: - genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0); - printf("\tfdbcc_opp(opcode,extra);\n"); - break; - case i_FScc: - genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0); - printf("\tfscc_opp(opcode,extra);\n"); - break; - case i_FTRAPcc: - printf("\tCPTR oldpc = m68k_getpc();\n"); - if (table68k[opcode].smode != am_unknown && table68k[opcode].smode != am_illg) - genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "dummy", 1, 0); - printf("\tftrapcc_opp(opcode,oldpc);\n"); - break; - case i_FBcc: - printf("\tCPTR pc = m68k_getpc();\n"); - genamode (table68k[opcode].dmode, "srcreg", table68k[opcode].size, "extra", 1, 0); - printf("\tfbcc_opp(opcode,pc,extra);\n"); - break; - case i_FSAVE: - printf("\tfsave_opp(opcode);\n"); - break; - case i_FRESTORE: - printf("\tfrestore_opp(opcode);\n"); - break; - case i_MMUOP: - genamode (table68k[opcode].smode, "srcreg", table68k[opcode].size, "extra", 1, 0); - printf("\tmmu_op(opcode,extra);\n"); + case i_UNPK: + if (curi->smode == Dreg) { + printf ("\tuae_u16 val = m68k_dreg(regs, srcreg);\n"); + printf ("\tval = (((val << 4) & 0xf00) | (val & 0xf)) + %s;\n", gen_nextiword ()); + printf ("\tm68k_dreg(regs, dstreg) = (m68k_dreg(regs, dstreg) & 0xffff0000) | (val & 0xffff);\n"); + } else { + printf ("\tuae_u16 val;\n"); + printf ("\tm68k_areg(regs, srcreg) -= areg_byteinc[srcreg];\n"); + printf ("\tval = (uae_u16)get_byte(m68k_areg(regs, srcreg));\n"); + printf ("\tval = (((val << 4) & 0xf00) | (val & 0xf)) + %s;\n", gen_nextiword ()); + printf ("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n"); + printf ("\tput_byte(m68k_areg(regs, dstreg),val);\n"); + printf ("\tm68k_areg(regs, dstreg) -= areg_byteinc[dstreg];\n"); + printf ("\tput_byte(m68k_areg(regs, dstreg),val >> 8);\n"); + } + break; + case i_TAS: + genamode (curi->smode, "srcreg", curi->size, "src", 1, 0); + genflags (flag_logical, curi->size, "src", "", ""); + printf ("\tsrc |= 0x80;\n"); + genastore ("src", curi->smode, "srcreg", curi->size, "src"); + break; + case i_FPP: + genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0); + sync_m68k_pc (); + printf ("\tfpp_opp(opcode,extra);\n"); + break; + case i_FDBcc: + genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0); + sync_m68k_pc (); + printf ("\tfdbcc_opp(opcode,extra);\n"); + break; + case i_FScc: + genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0); + sync_m68k_pc (); + printf ("\tfscc_opp(opcode,extra);\n"); + break; + case i_FTRAPcc: + sync_m68k_pc (); + start_brace (); + printf ("\tuaecptr oldpc = m68k_getpc();\n"); + if (curi->smode != am_unknown && curi->smode != am_illg) + genamode (curi->smode, "srcreg", curi->size, "dummy", 1, 0); + sync_m68k_pc (); + printf ("\tftrapcc_opp(opcode,oldpc);\n"); + break; + case i_FBcc: + sync_m68k_pc (); + start_brace (); + printf ("\tuaecptr pc = m68k_getpc();\n"); + genamode (curi->dmode, "srcreg", curi->size, "extra", 1, 0); + sync_m68k_pc (); + printf ("\tfbcc_opp(opcode,pc,extra);\n"); + break; + case i_FSAVE: + sync_m68k_pc (); + printf ("\tfsave_opp(opcode);\n"); + break; + case i_FRESTORE: + sync_m68k_pc (); + printf ("\tfrestore_opp(opcode);\n"); + break; + + case i_CINVL: + case i_CINVP: + case i_CINVA: + case i_CPUSHL: + case i_CPUSHP: + case i_CPUSHA: + break; + case i_MOVE16: + if ((opcode & 0xfff8) == 0xf620) { + /* MOVE16 (Ax)+,(Ay)+ */ + printf ("\tuaecptr mems = m68k_areg(regs, srcreg) & ~15, memd;\n"); + printf ("\tdstreg = (%s >> 12) & 7;\n", gen_nextiword()); + printf ("\tmemd = m68k_areg(regs, dstreg) & ~15;\n"); + printf ("\tput_long(memd, get_long(mems));\n"); + printf ("\tput_long(memd+4, get_long(mems+4));\n"); + printf ("\tput_long(memd+8, get_long(mems+8));\n"); + printf ("\tput_long(memd+12, get_long(mems+12));\n"); + printf ("\tif (srcreg != dstreg)\n"); + printf ("\tm68k_areg(regs, srcreg) += 16;\n"); + printf ("\tm68k_areg(regs, dstreg) += 16;\n"); + } else { + /* Other variants */ + genamode (curi->smode, "srcreg", curi->size, "mems", 0, 2); + genamode (curi->dmode, "dstreg", curi->size, "memd", 0, 2); + printf ("\tmemsa &= ~15;\n"); + printf ("\tmemda &= ~15;\n"); + printf ("\tput_long(memda, get_long(memsa));\n"); + printf ("\tput_long(memda+4, get_long(memsa+4));\n"); + printf ("\tput_long(memda+8, get_long(memsa+8));\n"); + printf ("\tput_long(memda+12, get_long(memsa+12));\n"); + if ((opcode & 0xfff8) == 0xf600) + printf ("\tm68k_areg(regs, srcreg) += 16;\n"); + else if ((opcode & 0xfff8) == 0xf608) + printf ("\tm68k_areg(regs, dstreg) += 16;\n"); + } + break; + + case i_MMUOP: + genamode (curi->smode, "srcreg", curi->size, "extra", 1, 0); + sync_m68k_pc (); + printf ("\tmmu_op(opcode,extra);\n"); break; - default: - abort(); + default: + abort (); break; - }; + } finish_braces (); + sync_m68k_pc (); +} + +static void generate_includes (FILE * f) +{ + fprintf (f, "#include \"sysconfig.h\"\n"); + fprintf (f, "#include \"sysdeps.h\"\n"); + fprintf (f, "#include \"config.h\"\n"); + fprintf (f, "#include \"options.h\"\n"); + fprintf (f, "#include \"memory.h\"\n"); + fprintf (f, "#include \"custom.h\"\n"); + fprintf (f, "#include \"newcpu.h\"\n"); + fprintf (f, "#include \"compiler.h\"\n"); + fprintf (f, "#include \"cputbl.h\"\n"); + + fprintf (f, "#define CPUFUNC(x) x##_ff\n" + "#ifdef NOFLAGS\n" + "#include \"noflags.h\"\n" + "#endif\n"); } -static void generate_func(long int from, long int to) +static int postfix; + +static void generate_one_opcode (int rp) { - int illg = 0; - long int opcode; int i; - UWORD smsk; - UWORD dmsk; + uae_u16 smsk, dmsk; + long int opcode = opcode_map[rp]; - printf("#include \"sysconfig.h\"\n"); - printf("#include \"sysdeps.h\"\n"); - printf("#include \"config.h\"\n"); - printf("#include \"options.h\"\n"); - printf("#include \"machdep/m68k.h\"\n"); - printf("#include \"memory.h\"\n"); - printf("#include \"custom.h\"\n"); - printf("#include \"readcpu.h\"\n"); - printf("#include \"newcpu.h\"\n"); - printf("#include \"compiler.h\"\n"); - printf("#include \"cputbl.h\"\n"); - printf("#if !defined (MEMFUNCS_DIRECT_REQUESTED) || defined (DIRECT_MEMFUNCS_SUCCESSFUL)\n"); - for(opcode=from; opcode < to; opcode++) { - if (table68k[opcode].mnemo == i_ILLG) { - illg++; - continue; - } - for (i = 0 ; lookuptab[i].name[0] ; i++) { - if (table68k[opcode].mnemo == lookuptab[i].mnemo) - break; - } - if (isspecific(opcode)) { - printf("void REGPARAM2 CPU_OP_NAME(_%lx) ## _s(ULONG opcode) /* %s */\n{\n", opcode, lookuptab[i].name); - if (table68k[opcode].suse - && table68k[opcode].smode != imm && table68k[opcode].smode != imm0 - && table68k[opcode].smode != imm1 && table68k[opcode].smode != imm2 - && table68k[opcode].smode != absw && table68k[opcode].smode != absl - && table68k[opcode].smode != PC8r && table68k[opcode].smode != PC16) - { - if (((int)table68k[opcode].sreg) >= 128) - printf("\tULONG srcreg = (LONG)(BYTE)%d;\n", (int)table68k[opcode].sreg); - else - printf("\tULONG srcreg = %d;\n", (int)table68k[opcode].sreg); - } - if (table68k[opcode].duse - /* Yes, the dmode can be imm, in case of LINK or DBcc */ - && table68k[opcode].dmode != imm && table68k[opcode].dmode != imm0 - && table68k[opcode].dmode != imm1 && table68k[opcode].dmode != imm2 - && table68k[opcode].dmode != absw && table68k[opcode].dmode != absl) - { - if (((int)table68k[opcode].dreg) >= 128) - printf("\tULONG dstreg = (LONG)(BYTE)%d;\n", (int)table68k[opcode].dreg); - else - printf("\tULONG dstreg = %d;\n", (int)table68k[opcode].dreg); - } - gen_opcode(opcode); - printf("}\n"); - } - - if (table68k[opcode].handler != -1) - continue; - - - switch (table68k[opcode].stype) { - case 0: - smsk = 7; break; - case 1: - smsk = 255; break; - case 2: - smsk = 15; break; - case 3: - smsk = 7; break; - case 4: - smsk = 7; break; - case 5: - smsk = 63; break; - default: - abort(); - } - dmsk = 7; - - printf("void REGPARAM2 CPU_OP_NAME(_%lx)(ULONG opcode) /* %s */\n{\n", opcode, lookuptab[i].name); - if (table68k[opcode].suse - && table68k[opcode].smode != imm && table68k[opcode].smode != imm0 - && table68k[opcode].smode != imm1 && table68k[opcode].smode != imm2 - && table68k[opcode].smode != absw && table68k[opcode].smode != absl - && table68k[opcode].smode != PC8r && table68k[opcode].smode != PC16) - { - if (table68k[opcode].spos == -1) { - if (((int)table68k[opcode].sreg) >= 128) - printf("\tULONG srcreg = (LONG)(BYTE)%d;\n", (int)table68k[opcode].sreg); - else - printf("\tULONG srcreg = %d;\n", (int)table68k[opcode].sreg); - } else { - char source[100]; + if (table68k[opcode].mnemo == i_ILLG + || table68k[opcode].clev > cpu_level) + return; - if (table68k[opcode].spos) - sprintf(source,"((opcode >> %d) & %d)",(int)table68k[opcode].spos,smsk); - else - sprintf(source,"(opcode & %d)",smsk); - - if (table68k[opcode].stype == 3) - printf("\tULONG srcreg = imm8_table[%s];\n", source); - else if (table68k[opcode].stype == 1) - printf("\tULONG srcreg = (LONG)(BYTE)%s;\n", source); - else - printf("\tULONG srcreg = %s;\n", source); - } - } - if (table68k[opcode].duse - /* Yes, the dmode can be imm, in case of LINK or DBcc */ - && table68k[opcode].dmode != imm && table68k[opcode].dmode != imm0 - && table68k[opcode].dmode != imm1 && table68k[opcode].dmode != imm2 - && table68k[opcode].dmode != absw && table68k[opcode].dmode != absl) { - if (table68k[opcode].dpos == -1) { - if (((int)table68k[opcode].dreg) >= 128) - printf("\tULONG dstreg = (LONG)(BYTE)%d;\n", (int)table68k[opcode].dreg); - else - printf("\tULONG dstreg = %d;\n", (int)table68k[opcode].dreg); - } else { - if (table68k[opcode].dpos) - printf("\tULONG dstreg = (opcode >> %d) & %d;\n", - (int)table68k[opcode].dpos,dmsk); - else - printf("\tULONG dstreg = opcode & %d;\n", dmsk); - } - } - gen_opcode(opcode); - printf("}\n"); + for (i = 0; lookuptab[i].name[0]; i++) { + if (table68k[opcode].mnemo == lookuptab[i].mnemo) + break; } - printf("#endif\n"); - fprintf (stderr, "%d illegals generated.\n", illg); -} -static void generate_table(void) -{ - int illg = 0; - long int opcode; - - printf("#include \"sysconfig.h\"\n"); - printf("#include \"sysdeps.h\"\n"); - printf("#include \"config.h\"\n"); - printf("#include \"options.h\"\n"); - printf("#include \"machdep/m68k.h\"\n"); - printf("#include \"memory.h\"\n"); - printf("#include \"custom.h\"\n"); - printf("#include \"readcpu.h\"\n"); - printf("#include \"newcpu.h\"\n"); - printf("#include \"compiler.h\"\n"); - printf("#include \"cputbl.h\"\n"); - - printf("#if !defined (MEMFUNCS_DIRECT_REQUESTED) || defined (DIRECT_MEMFUNCS_SUCCESSFUL)\n"); - printf("cpuop_func *CPU_OP_NAME(_functbl)[65536] = {\n"); - for(opcode=0; opcode < 65536; opcode++) { - if (table68k[opcode].mnemo == i_ILLG) { - printf("op_illg"); - illg++; - } else if (isspecific(opcode)) - printf("CPU_OP_NAME(_%lx) ## _s", opcode); - else if (table68k[opcode].handler != -1) - printf("CPU_OP_NAME(_%lx)", table68k[opcode].handler); - else - printf("CPU_OP_NAME(_%lx)", opcode); - - if (opcode < 65535) printf(","); - if ((opcode & 7) == 7) printf("\n"); + if (table68k[opcode].handler != -1) + return; + + if (opcode_next_clev[rp] != cpu_level) { + fprintf (stblfile, "{ CPUFUNC(op_%lx_%d), 0, %ld }, /* %s */\n", opcode, opcode_last_postfix[rp], + opcode, lookuptab[i].name); + return; } - printf("\n};\n#endif\n"); - fprintf (stderr, "%d illegals generated.\n", illg); - if (get_no_mismatches()) - fprintf(stderr, "%d mismatches.\n", get_no_mismatches()); -} + fprintf (stblfile, "{ CPUFUNC(op_%lx_%d), 0, %ld }, /* %s */\n", opcode, postfix, opcode, lookuptab[i].name); + fprintf (headerfile, "extern cpuop_func op_%lx_%d_nf;\n", opcode, postfix); + fprintf (headerfile, "extern cpuop_func op_%lx_%d_ff;\n", opcode, postfix); + printf ("unsigned long REGPARAM2 CPUFUNC(op_%lx_%d)(uae_u32 opcode) /* %s */\n{\n", opcode, postfix, lookuptab[i].name); + + switch (table68k[opcode].stype) { + case 0: smsk = 7; break; + case 1: smsk = 255; break; + case 2: smsk = 15; break; + case 3: smsk = 7; break; + case 4: smsk = 7; break; + case 5: smsk = 63; break; + case 7: smsk = 3; break; + default: abort (); + } + dmsk = 7; + + next_cpu_level = -1; + if (table68k[opcode].suse + && table68k[opcode].smode != imm && table68k[opcode].smode != imm0 + && table68k[opcode].smode != imm1 && table68k[opcode].smode != imm2 + && table68k[opcode].smode != absw && table68k[opcode].smode != absl + && table68k[opcode].smode != PC8r && table68k[opcode].smode != PC16) + { + if (table68k[opcode].spos == -1) { + if (((int) table68k[opcode].sreg) >= 128) + printf ("\tuae_u32 srcreg = (uae_s32)(uae_s8)%d;\n", (int) table68k[opcode].sreg); + else + printf ("\tuae_u32 srcreg = %d;\n", (int) table68k[opcode].sreg); + } else { + char source[100]; + int pos = table68k[opcode].spos; -static void generate_smalltable(void) -{ - long int opcode; - int i; - - printf("#include \"sysconfig.h\"\n"); - printf("#include \"sysdeps.h\"\n"); - printf("#include \"config.h\"\n"); - printf("#include \"options.h\"\n"); - printf("#include \"machdep/m68k.h\"\n"); - printf("#include \"memory.h\"\n"); - printf("#include \"custom.h\"\n"); - printf("#include \"readcpu.h\"\n"); - printf("#include \"newcpu.h\"\n"); - printf("#include \"compiler.h\"\n"); - printf("#include \"cputbl.h\"\n"); - - printf("struct cputbl CPU_OP_NAME(_smalltbl)[] = {\n"); - printf("#if !defined (MEMFUNCS_DIRECT_REQUESTED) || defined (DIRECT_MEMFUNCS_SUCCESSFUL)\n"); - for(opcode=0; opcode < 65536; opcode++) { - if ((isspecific(opcode) || table68k[opcode].handler == -1) - && table68k[opcode].mnemo != i_ILLG) - { - for (i = 0 ; lookuptab[i].name[0] ; i++) { - if (table68k[opcode].mnemo == lookuptab[i].mnemo) - break; - } - if (isspecific(opcode)) - printf("{ CPU_OP_NAME(_%lx) ## _s, 1, %ld }, /* %s */\n", opcode, opcode, lookuptab[i].name); - if (table68k[opcode].handler == -1) - printf("{ CPU_OP_NAME(_%lx), 0, %ld }, /* %s */\n", opcode, opcode, lookuptab[i].name); + if (pos) + sprintf (source, "((opcode >> %d) & %d)", pos, smsk); + else + sprintf (source, "(opcode & %d)", smsk); + + if (table68k[opcode].stype == 3) + printf ("\tuae_u32 srcreg = imm8_table[%s];\n", source); + else if (table68k[opcode].stype == 1) + printf ("\tuae_u32 srcreg = (uae_s32)(uae_s8)%s;\n", source); + else + printf ("\tuae_u32 srcreg = %s;\n", source); } } - printf("#endif\n{ 0, 0, 0 }};\n"); + if (table68k[opcode].duse + /* Yes, the dmode can be imm, in case of LINK or DBcc */ + && table68k[opcode].dmode != imm && table68k[opcode].dmode != imm0 + && table68k[opcode].dmode != imm1 && table68k[opcode].dmode != imm2 + && table68k[opcode].dmode != absw && table68k[opcode].dmode != absl) + { + if (table68k[opcode].dpos == -1) { + if (((int) table68k[opcode].dreg) >= 128) + printf ("\tuae_u32 dstreg = (uae_s32)(uae_s8)%d;\n", (int) table68k[opcode].dreg); + else + printf ("\tuae_u32 dstreg = %d;\n", (int) table68k[opcode].dreg); + } else { + int pos = table68k[opcode].dpos; +#if 0 + /* Check that we can do the little endian optimization safely. */ + if (pos < 8 && (dmsk >> (8 - pos)) != 0) + abort (); +#endif + if (pos) + printf ("\tuae_u32 dstreg = (opcode >> %d) & %d;\n", + pos, dmsk); + else + printf ("\tuae_u32 dstreg = opcode & %d;\n", dmsk); + } + } + need_endlabel = 0; + endlabelno++; + sprintf (endlabelstr, "endlabel%d", endlabelno); + gen_opcode (opcode); + if (need_endlabel) + printf ("%s: ;\n", endlabelstr); + printf ("return %d;\n", insn_n_cycles * CYCLE_UNIT / 2); + printf ("}\n"); + opcode_next_clev[rp] = next_cpu_level; + opcode_last_postfix[rp] = postfix; } -static void generate_header(void) +static void generate_func (void) { - int illg = 0; - long int opcode; - - printf("#if !defined (MEMFUNCS_DIRECT_REQUESTED) || defined (DIRECT_MEMFUNCS_SUCCESSFUL)\n"); - for(opcode=0; opcode < 65536; opcode++) { - if (table68k[opcode].mnemo == i_ILLG) { - illg++; - continue; - } - if (isspecific(opcode)) - printf("extern cpuop_func CPU_OP_NAME(_%lx) ## _s;\n", opcode); - if (table68k[opcode].handler != -1) - continue; + int i, j, rp; + + using_prefetch = 0; + using_exception_3 = 0; + for (i = 0; i < 6; i++) { + cpu_level = 4 - i; + if (i == 5) { + cpu_level = 0; + using_prefetch = 1; + using_exception_3 = 1; + for (rp = 0; rp < nr_cpuop_funcs; rp++) + opcode_next_clev[rp] = 0; + } + + postfix = i; + fprintf (stblfile, "struct cputbl CPUFUNC(op_smalltbl_%d)[] = {\n", postfix); + + /* sam: this is for people with low memory (eg. me :)) */ + printf ("\n" + "#if !defined(PART_1) && !defined(PART_2) && " + "!defined(PART_3) && !defined(PART_4) && " + "!defined(PART_5) && !defined(PART_6) && " + "!defined(PART_7) && !defined(PART_8)" + "\n" + "#define PART_1 1\n" + "#define PART_2 1\n" + "#define PART_3 1\n" + "#define PART_4 1\n" + "#define PART_5 1\n" + "#define PART_6 1\n" + "#define PART_7 1\n" + "#define PART_8 1\n" + "#endif\n\n"); - printf("extern cpuop_func CPU_OP_NAME(_%lx);\n", opcode); + rp = 0; + for(j=1;j<=8;++j) { + int k = (j*nr_cpuop_funcs)/8; + printf ("#ifdef PART_%d\n",j); + for (; rp < k; rp++) + generate_one_opcode (rp); + printf ("#endif\n\n"); + } + + fprintf (stblfile, "{ 0, 0, 0 }};\n"); } - - printf("#endif\n"); - fprintf (stderr, "%d illegals generated.\n", illg); - if (get_no_mismatches()) - fprintf(stderr, "%d mismatches.\n", get_no_mismatches()); + } -int main(int argc, char **argv) +int main (int argc, char **argv) { - long int range = -1; - char mode = 'n'; - - if (argc == 2) - mode = *argv[1]; - - if (argc == 3) { - range = atoi(argv[2]); - mode = *argv[1]; - } - read_table68k (); - read_counts(); do_merges (); - - switch(mode) { - case 'f': - generate_func(range * 0x1000, (range + 1) * 0x1000); - break; - case 'h': - generate_header(); - break; - case 't': - generate_table(); - break; - case 's': - generate_smalltable(); - break; - default: - abort(); - } - free(table68k); + + opcode_map = (int *) xmalloc (sizeof (int) * nr_cpuop_funcs); + opcode_last_postfix = (int *) xmalloc (sizeof (int) * nr_cpuop_funcs); + opcode_next_clev = (int *) xmalloc (sizeof (int) * nr_cpuop_funcs); + counts = (unsigned long *) xmalloc (65536 * sizeof (unsigned long)); + read_counts (); + + /* It would be a lot nicer to put all in one file (we'd also get rid of + * cputbl.h that way), but cpuopti can't cope. That could be fixed, but + * I don't dare to touch the 68k version. */ + + headerfile = fopen ("cputbl.h", "wb"); + stblfile = fopen ("cpustbl.c", "wb"); + freopen ("cpuemu.c", "wb", stdout); + + generate_includes (stdout); + generate_includes (stblfile); + + generate_func (); + + free (table68k); return 0; }