--- hatari/src/uae-cpu/newcpu.h 2019/04/09 08:48:49 1.1.1.13 +++ hatari/src/uae-cpu/newcpu.h 2019/04/09 08:59:34 1.1.1.18 @@ -7,8 +7,8 @@ * * Adaptation to Hatari by Thomas Huth * - * This file is distributed under the GNU Public License, version 2 or at - * your option any later version. Read the file gpl.txt for details. + * This file is distributed under the GNU General Public License, version 2 + * or at your option any later version. Read the file gpl.txt for details. */ #ifndef UAE_NEWCPU_H @@ -39,6 +39,7 @@ #define SPCFLAG_MFP 0x200 #define SPCFLAG_EXEC 0x400 #define SPCFLAG_MODE_CHANGE 0x800 +#define SPCFLAG_DSP 0x1000 #ifndef SET_CFLG @@ -116,8 +117,11 @@ extern struct regstruct uae_u32 pc; uae_u8 *pc_p; uae_u8 *pc_oldp; + uae_u16 opcode; + uae_u32 instruction_pc; uae_u32 vbr,sfc,dfc; + uae_u32 caar, cacr; fptype fp[8]; fptype fp_result; @@ -161,6 +165,8 @@ STATIC_INLINE uaecptr m68k_getpc_p (uae_ return regs.pc + ((char *)p - (char *)regs.pc_oldp); } +#define M68K_GETPC m68k_getpc() + #define get_ibyte(o) do_get_mem_byte(regs.pc_p + (o) + 1) #define get_iword(o) do_get_mem_word(regs.pc_p + (o)) #define get_ilong(o) do_get_mem_long(regs.pc_p + (o)) @@ -168,17 +174,49 @@ STATIC_INLINE uaecptr m68k_getpc_p (uae_ STATIC_INLINE void refill_prefetch (uae_u32 currpc, uae_u32 offs) { uae_u32 t = (currpc + offs) & ~1; - uae_s32 pc_p_offs = t - currpc; - uae_u8 *ptr = regs.pc_p + pc_p_offs; uae_u32 r; + +//fprintf ( stderr , "refill pc %x o %d old %x\n" , currpc,offs,regs.prefetch_pc ); #ifdef UNALIGNED_PROFITABLE - r = *(uae_u32 *)ptr; + if ( t - regs.prefetch_pc == 2 ) /* keep 1 word and read 1 new word */ + { + r = regs.prefetch; + r <<= 16; + r |= get_word (t+2); + } + else + { + /* [NP] FIXME : when we refill with 4 bytes, we should not read one long */ + /* but 2 words, else some bus errors are not detected if the address overlaps */ + /* on a bus error region (eg : get_long(t=213ffffe) doesn't give a bus error, */ + /* but it should. This should be better handled in memory.c */ +// r = get_long (t); /* read 2 new words */ + r = get_word (t); + r <<= 16; + r |= get_word (t+2); + } regs.prefetch = r; #else - r = do_get_mem_long (ptr); + if ( t - regs.prefetch_pc == 2 ) /* keep 1 word and read 1 new word */ + { + r = do_get_mem_word (((uae_u8 *)®s.prefetch) + 2); + r <<= 16; + r |= get_word (t+2); + } + else + { + /* [NP] FIXME : when we refill with 4 bytes, we should not read one long */ + /* but 2 words, else some bus errors are not detected if the address overlaps */ + /* on a bus error region (eg : get_long(t=213ffffe) doesn't give a bus error, */ + /* but it should. This should be better handled in memory.c */ +// r = get_long (t); /* read 2 new words */ + r = get_word (t); + r <<= 16; + r |= get_word (t+2); + } do_put_mem_long (®s.prefetch, r); #endif - /* printf ("PC %lx T %lx PCPOFFS %d R %lx\n", currpc, t, pc_p_offs, r); */ +//fprintf (stderr,"PC %x PREFPC %x T %x R %x\n", currpc, regs.prefetch_pc, t, r); regs.prefetch_pc = t; } @@ -204,6 +242,7 @@ STATIC_INLINE uae_u32 get_iword_prefetch uae_u32 addr = currpc + o; uae_u32 offs = addr - regs.prefetch_pc; uae_u32 v; +//fprintf (stderr,"get_iword PC %lx ADDR %lx OFFS %lx V %lx\n", currpc, addr, offs, v); if (offs > 3) { refill_prefetch (currpc, o); offs = addr - regs.prefetch_pc; @@ -211,6 +250,7 @@ STATIC_INLINE uae_u32 get_iword_prefetch v = do_get_mem_word (((uae_u8 *)®s.prefetch) + offs); if (offs >= 2) refill_prefetch (currpc, 2); +//fprintf (stderr,"get_iword PC %lx ADDR %lx OFFS %lx V %lx\n", currpc, addr, offs, v); /* printf ("get_iword PC %lx ADDR %lx OFFS %lx V %lx\n", currpc, addr, offs, v); */ return v; } @@ -328,6 +368,10 @@ extern uae_u16 last_op_for_exception_3; extern uaecptr last_addr_for_exception_3; /* Address that generated the exception */ extern uaecptr last_fault_for_exception_3; +/* read (0) or write (1) access */ +extern int last_writeaccess_for_exception_3; +/* instruction (1) or data (0) access */ +extern int last_instructionaccess_for_exception_3; #define CPU_OP_NAME(a) op ## a @@ -346,12 +390,11 @@ extern const struct cputbl op_smalltbl_5 extern cpuop_func *cpufunctbl[65536]; -extern uae_u32 caar, cacr; /* Family of the latest instruction executed (to check for pairing) */ extern int OpcodeFamily; /* see instrmnem in readcpu.h */ -/* How many cycles to add to the current instruction in case a "misaligned" bus acces is made */ +/* How many cycles to add to the current instruction in case a "misaligned" bus access is made */ /* (used when addressing mode is d8(an,ix)) */ extern int BusCyclePenalty;