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hatari 2.2.0
/*
DSP M56001 emulation
Disassembler
(C) 2003-2008 ARAnyM developer team
This program is free software; you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation; either version 2 of the License, or
(at your option) any later version.
This program is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this program; if not, write to the Free Software Foundation,
51 Franklin Street, Fifth Floor, Boston, MA 02110-1335 USA
*/
#ifdef HAVE_CONFIG_H
#include "config.h"
#endif
#include <string.h>
#include <inttypes.h>
#include <stdbool.h>
#include <stdio.h>
#include "dsp_core.h"
#include "dsp_cpu.h"
#include "dsp_disasm.h"
#include "profile.h"
/* More disasm infos, if wanted */
#define DSP_DISASM_REG_PC 0
/**********************************
* Defines
**********************************/
/**********************************
* Variables
**********************************/
/* Current instruction */
static Uint32 cur_inst;
static Uint16 disasm_cur_inst_len;
static char str_instr[80];
static char str_instr2[120];
static char parallelmove_name[64];
/* Previous instruction */
static Uint32 prev_inst_pc;
static bool isLooping;
/* Used to display dc instead of unknown instruction for illegal opcodes */
static bool isInDisasmMode;
void dsp56k_disasm_init(void)
{
prev_inst_pc = 0x10000; /* Init to an invalid value */
isLooping = false;
isInDisasmMode = false;
}
/**********************************
* Register change
**********************************/
static Uint32 registers_save[64];
#if DSP_DISASM_REG_PC
static Uint32 pc_save;
#endif
static const char *registers_name[64]={
"","","","",
"x0","x1","y0","y1",
"a0","b0","a2","b2",
"a1","b1","a","b",
"r0","r1","r2","r3",
"r4","r5","r6","r7",
"n0","n1","n2","n3",
"n4","n5","n6","n7",
"m0","m1","m2","m3",
"m4","m5","m6","m7",
"","","","",
"","","","",
"","","","",
"","","","",
"","sr","omr","sp",
"ssh","ssl","la","lc"
};
/**********************************
* Opcode disassembler
**********************************/
static Uint32 read_memory(Uint32 currPc);
typedef void (*dsp_emul_t)(void);
static void opcode8h_0(void);
static int dsp_calc_ea(Uint32 ea_mode, char *dest);
static void dsp_calc_cc(Uint32 cc_mode, char *dest);
static void dsp_undefined(void);
/* Instructions without parallel moves */
static void dsp_andi(void);
static void dsp_bchg_aa(void);
static void dsp_bchg_ea(void);
static void dsp_bchg_pp(void);
static void dsp_bchg_reg(void);
static void dsp_bclr_aa(void);
static void dsp_bclr_ea(void);
static void dsp_bclr_pp(void);
static void dsp_bclr_reg(void);
static void dsp_bset_aa(void);
static void dsp_bset_ea(void);
static void dsp_bset_pp(void);
static void dsp_bset_reg(void);
static void dsp_btst_aa(void);
static void dsp_btst_ea(void);
static void dsp_btst_pp(void);
static void dsp_btst_reg(void);
static void dsp_div(void);
static void dsp_enddo(void);
static void dsp_illegal(void);
static void dsp_jcc_imm(void);
static void dsp_jcc_ea(void);
static void dsp_jclr_aa(void);
static void dsp_jclr_ea(void);
static void dsp_jclr_pp(void);
static void dsp_jclr_reg(void);
static void dsp_jmp_ea(void);
static void dsp_jmp_imm(void);
static void dsp_jscc_ea(void);
static void dsp_jscc_imm(void);
static void dsp_jsclr_aa(void);
static void dsp_jsclr_ea(void);
static void dsp_jsclr_pp(void);
static void dsp_jsclr_reg(void);
static void dsp_jset_aa(void);
static void dsp_jset_ea(void);
static void dsp_jset_pp(void);
static void dsp_jset_reg(void);
static void dsp_jsr_ea(void);
static void dsp_jsr_imm(void);
static void dsp_jsset_aa(void);
static void dsp_jsset_ea(void);
static void dsp_jsset_pp(void);
static void dsp_jsset_reg(void);
static void dsp_lua(void);
static void dsp_movem_ea(void);
static void dsp_movem_aa(void);
static void dsp_nop(void);
static void dsp_norm(void);
static void dsp_ori(void);
static void dsp_reset(void);
static void dsp_rti(void);
static void dsp_rts(void);
static void dsp_stop(void);
static void dsp_swi(void);
static void dsp_tcc(void);
static void dsp_wait(void);
static void dsp_do_ea(void);
static void dsp_do_aa(void);
static void dsp_do_imm(void);
static void dsp_do_reg(void);
static void dsp_rep_aa(void);
static void dsp_rep_ea(void);
static void dsp_rep_imm(void);
static void dsp_rep_reg(void);
static void dsp_movec_aa(void);
static void dsp_movec_ea(void);
static void dsp_movec_imm(void);
static void dsp_movec_reg(void);
static void dsp_movep_0(void);
static void dsp_movep_1(void);
static void dsp_movep_23(void);
/* Parallel moves */
static void dsp_pm_class2(void);
static void dsp_pm(void);
static void dsp_pm_0(void);
static void dsp_pm_1(void);
static void dsp_pm_2(void);
static void dsp_pm_4(void);
static void dsp_pm_8(void);
static const dsp_emul_t opcodes8h[512] = {
/* 0x00 - 0x3f */
opcode8h_0, dsp_undefined, dsp_undefined, dsp_undefined, opcode8h_0, dsp_andi, dsp_undefined, dsp_ori,
dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_andi, dsp_undefined, dsp_ori,
dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_andi, dsp_undefined, dsp_ori,
dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_andi, dsp_undefined, dsp_ori,
dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
dsp_undefined, dsp_undefined, dsp_div, dsp_div, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
dsp_norm, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
/* 0x40 - 0x7f */
dsp_tcc, dsp_tcc, dsp_tcc, dsp_tcc, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
dsp_tcc, dsp_tcc, dsp_tcc, dsp_tcc, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
dsp_tcc, dsp_tcc, dsp_tcc, dsp_tcc, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
dsp_tcc, dsp_tcc, dsp_tcc, dsp_tcc, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
dsp_tcc, dsp_tcc, dsp_tcc, dsp_tcc, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
dsp_tcc, dsp_tcc, dsp_tcc, dsp_tcc, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
dsp_tcc, dsp_tcc, dsp_tcc, dsp_tcc, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
dsp_tcc, dsp_tcc, dsp_tcc, dsp_tcc, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
/* 0x80 - 0xbf */
dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
dsp_lua, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_movec_reg, dsp_undefined, dsp_undefined,
dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_movec_reg, dsp_undefined, dsp_undefined,
dsp_undefined, dsp_movec_aa, dsp_undefined, dsp_movec_aa, dsp_undefined, dsp_movec_imm, dsp_undefined, dsp_undefined,
dsp_undefined, dsp_movec_ea, dsp_undefined, dsp_movec_ea, dsp_undefined, dsp_movec_imm, dsp_undefined, dsp_undefined,
dsp_undefined, dsp_movec_aa, dsp_undefined, dsp_movec_aa, dsp_undefined, dsp_movec_imm, dsp_undefined, dsp_undefined,
dsp_undefined, dsp_movec_ea, dsp_undefined, dsp_movec_ea, dsp_undefined, dsp_movec_imm, dsp_undefined, dsp_undefined,
/* 0xc0 - 0xff */
dsp_do_aa, dsp_rep_aa, dsp_do_aa, dsp_rep_aa, dsp_do_imm, dsp_rep_imm, dsp_undefined, dsp_undefined,
dsp_do_ea, dsp_rep_ea, dsp_do_ea, dsp_rep_ea, dsp_do_imm, dsp_rep_imm, dsp_undefined, dsp_undefined,
dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_do_imm, dsp_rep_imm, dsp_undefined, dsp_undefined,
dsp_do_reg, dsp_rep_reg, dsp_undefined, dsp_undefined, dsp_do_imm, dsp_rep_imm, dsp_undefined, dsp_undefined,
dsp_movem_aa, dsp_movem_aa, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_movem_ea, dsp_movem_ea, dsp_undefined, dsp_undefined,
dsp_movem_aa, dsp_movem_aa, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_movem_ea, dsp_movem_ea, dsp_undefined, dsp_undefined,
/* 0x100 - 0x13f */
dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2,
dsp_movep_0, dsp_movep_0, dsp_movep_1, dsp_movep_1, dsp_movep_23, dsp_movep_23, dsp_movep_23, dsp_movep_23,
dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2,
dsp_movep_0, dsp_movep_0, dsp_movep_1, dsp_movep_1, dsp_movep_23, dsp_movep_23, dsp_movep_23, dsp_movep_23,
dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2,
dsp_movep_0, dsp_movep_0, dsp_movep_1, dsp_movep_1, dsp_movep_23, dsp_movep_23, dsp_movep_23, dsp_movep_23,
dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2, dsp_pm_class2,
dsp_movep_0, dsp_movep_0, dsp_movep_1, dsp_movep_1, dsp_movep_23, dsp_movep_23, dsp_movep_23, dsp_movep_23,
/* 0x140 - 0x17f */
dsp_bclr_aa, dsp_bset_aa, dsp_bclr_aa, dsp_bset_aa, dsp_jclr_aa, dsp_jset_aa, dsp_jclr_aa, dsp_jset_aa,
dsp_bclr_ea, dsp_bset_ea, dsp_bclr_ea, dsp_bset_ea, dsp_jclr_ea, dsp_jset_ea, dsp_jclr_ea, dsp_jset_ea,
dsp_bclr_pp, dsp_bset_pp, dsp_bclr_pp, dsp_bset_pp, dsp_jclr_pp, dsp_jset_pp, dsp_jclr_pp, dsp_jset_pp,
dsp_jclr_reg, dsp_jset_reg, dsp_bclr_reg, dsp_bset_reg, dsp_jmp_ea, dsp_jcc_ea, dsp_undefined, dsp_undefined,
dsp_bchg_aa, dsp_btst_aa, dsp_bchg_aa, dsp_btst_aa, dsp_jsclr_aa, dsp_jsset_aa, dsp_jsclr_aa, dsp_jsset_aa,
dsp_bchg_ea, dsp_btst_ea, dsp_bchg_ea, dsp_btst_ea, dsp_jsclr_ea, dsp_jsset_ea, dsp_jsclr_ea, dsp_jsset_ea,
dsp_bchg_pp, dsp_btst_pp, dsp_bchg_pp, dsp_btst_pp, dsp_jsclr_pp, dsp_jsset_pp, dsp_jsclr_pp, dsp_jsset_pp,
dsp_jsclr_reg, dsp_jsset_reg, dsp_bchg_reg, dsp_btst_reg, dsp_jsr_ea, dsp_jscc_ea, dsp_undefined, dsp_undefined,
/* 0x180 - 0x1bf */
dsp_jmp_imm, dsp_jmp_imm, dsp_jmp_imm, dsp_jmp_imm, dsp_jmp_imm, dsp_jmp_imm, dsp_jmp_imm, dsp_jmp_imm,
dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
dsp_jsr_imm, dsp_jsr_imm, dsp_jsr_imm, dsp_jsr_imm, dsp_jsr_imm, dsp_jsr_imm, dsp_jsr_imm, dsp_jsr_imm,
dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined, dsp_undefined,
/* 0x1c0 - 0x1ff */
dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm,
dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm,
dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm,
dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm, dsp_jcc_imm,
dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm,
dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm,
dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm,
dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm, dsp_jscc_imm,
};
static const char* opcodes_alu[256] = {
/* 0x00 - 0x3f */
"move" , "tfr b,a", "addr b,a", "tst a", "undefined", "cmp b,a" , "subr b,a", "cmpm b,a",
"undefined", "tfr a,b", "addr a,b", "tst b", "undefined", "cmp a,b" , "subr a,b", "cmpm a,b",
"add b,a" , "rnd a" , "addl b,a", "clr a", "sub b,a" , "undefined", "subl b,a", "not a",
"add a,b" , "rnd b" , "addl a,b", "clr b", "sub a,b" , "undefined", "subl a,b", "not b",
"add x,a" , "adc x,a", "asr a" , "lsr a", "sub x,a" , "sbc x,a" , "abs a" , "ror a",
"add x,b" , "adc x,b", "asr b" , "lsr b", "sub x,b" , "sbc x,b" , "abs b" , "ror b",
"add y,a" , "adc y,a", "asl a" , "lsl a", "sub y,a" , "sbc y,a" , "neg a" , "rol a",
"add y,b" , "adc y,b", "asl b" , "lsl b", "sub y,b" , "sbc y,b" , "neg b" , "rol b",
/* 0x40 - 0x7f */
"add x0,a", "tfr x0,a", "or x0,a", "eor x0,a", "sub x0,a", "cmp x0,a", "and x0,a", "cmpm x0,a",
"add x0,b", "tfr x0,b", "or x0,b", "eor x0,b", "sub x0,b", "cmp x0,b", "and x0,b", "cmpm x0,b",
"add y0,a", "tfr y0,a", "or y0,a", "eor y0,a", "sub y0,a", "cmp y0,a", "and y0,a", "cmpm y0,a",
"add y0,b", "tfr y0,b", "or y0,b", "eor y0,b", "sub y0,b", "cmp y0,b", "and y0,b", "cmpm y0,b",
"add x1,a", "tfr x1,a", "or x1,a", "eor x1,a", "sub x1,a", "cmp x1,a", "and x1,a", "cmpm x1,a",
"add x1,b", "tfr x1,b", "or x1,b", "eor x1,b", "sub x1,b", "cmp x1,b", "and x1,b", "cmpm x1,b",
"add y1,a", "tfr y1,a", "or y1,a", "eor y1,a", "sub y1,a", "cmp y1,a", "and y1,a", "cmpm y1,a",
"add y1,b", "tfr y1,b", "or y1,b", "eor y1,b", "sub y1,b", "cmp y1,b", "and y1,b", "cmpm y1,b",
/* 0x80 - 0xbf */
"mpy +x0,x0,a", "mpyr +x0,x0,a", "mac +x0,x0,a", "macr +x0,x0,a", "mpy -x0,x0,a", "mpyr -x0,x0,a", "mac -x0,x0,a", "macr -x0,x0,a",
"mpy +x0,x0,b", "mpyr +x0,x0,b", "mac +x0,x0,b", "macr +x0,x0,b", "mpy -x0,x0,b", "mpyr -x0,x0,b", "mac -x0,x0,b", "macr -x0,x0,b",
"mpy +y0,y0,a", "mpyr +y0,y0,a", "mac +y0,y0,a", "macr +y0,y0,a", "mpy -y0,y0,a", "mpyr -y0,y0,a", "mac -y0,y0,a", "macr -y0,y0,a",
"mpy +y0,y0,b", "mpyr +y0,y0,b", "mac +y0,y0,b", "macr +y0,y0,b", "mpy -y0,y0,b", "mpyr -y0,y0,b", "mac -y0,y0,b", "macr -y0,y0,b",
"mpy +x1,x0,a", "mpyr +x1,x0,a", "mac +x1,x0,a", "macr +x1,x0,a", "mpy -x1,x0,a", "mpyr -x1,x0,a", "mac -x1,x0,a", "macr -x1,x0,a",
"mpy +x1,x0,b", "mpyr +x1,x0,b", "mac +x1,x0,b", "macr +x1,x0,b", "mpy -x1,x0,b", "mpyr -x1,x0,b", "mac -x1,x0,b", "macr -x1,x0,b",
"mpy +y1,y0,a", "mpyr +y1,y0,a", "mac +y1,y0,a", "macr +y1,y0,a", "mpy -y1,y0,a", "mpyr -y1,y0,a", "mac -y1,y0,a", "macr -y1,y0,a",
"mpy +y1,y0,b", "mpyr +y1,y0,b", "mac +y1,y0,b", "macr +y1,y0,b", "mpy -y1,y0,b", "mpyr -y1,y0,b", "mac -y1,y0,b", "macr -y1,y0,b",
/* 0xc0 - 0xff */
"mpy +x0,y1,a", "mpyr +x0,y1,a", "mac +x0,y1,a", "macr +x0,y1,a", "mpy -x0,y1,a", "mpyr -x0,y1,a", "mac -x0,y1,a", "macr -x0,y1,a",
"mpy +x0,y1,b", "mpyr +x0,y1,b", "mac +x0,y1,b", "macr +x0,y1,b", "mpy -x0,y1,b", "mpyr -x0,y1,b", "mac -x0,y1,b", "macr -x0,y1,b",
"mpy +y0,x0,a", "mpyr +y0,x0,a", "mac +y0,x0,a", "macr +y0,x0,a", "mpy -y0,x0,a", "mpyr -y0,x0,a", "mac -y0,x0,a", "macr -y0,x0,a",
"mpy +y0,x0,b", "mpyr +y0,x0,b", "mac +y0,x0,b", "macr +y0,x0,b", "mpy -y0,x0,b", "mpyr -y0,x0,b", "mac -y0,x0,b", "macr -y0,x0,b",
"mpy +x1,y0,a", "mpyr +x1,y0,a", "mac +x1,y0,a", "macr +x1,y0,a", "mpy -x1,y0,a", "mpyr -x1,y0,a", "mac -x1,y0,a", "macr -x1,y0,a",
"mpy +x1,y0,b", "mpyr +x1,y0,b", "mac +x1,y0,b", "macr +x1,y0,b", "mpy -x1,y0,b", "mpyr -x1,y0,b", "mac -x1,y0,b", "macr -x1,y0,b",
"mpy +y1,x1,a", "mpyr +y1,x1,a", "mac +y1,x1,a", "macr +y1,x1,a", "mpy -y1,x1,a", "mpyr -y1,x1,a", "mac -y1,x1,a", "macr -y1,x1,a",
"mpy +y1,x1,b", "mpyr +y1,x1,b", "mac +y1,x1,b", "macr +y1,x1,b", "mpy -y1,x1,b", "mpyr -y1,x1,b", "mac -y1,x1,b", "macr -y1,x1,b"
};
static const dsp_emul_t opcodes_parmove[16] = {
dsp_pm_0,
dsp_pm_1,
dsp_pm_2,
dsp_pm_2,
dsp_pm_4,
dsp_pm_4,
dsp_pm_4,
dsp_pm_4,
dsp_pm_8,
dsp_pm_8,
dsp_pm_8,
dsp_pm_8,
dsp_pm_8,
dsp_pm_8,
dsp_pm_8,
dsp_pm_8
};
static const int registers_tcc[16][2] = {
{DSP_REG_B,DSP_REG_A},
{DSP_REG_A,DSP_REG_B},
{DSP_REG_NULL,DSP_REG_NULL},
{DSP_REG_NULL,DSP_REG_NULL},
{DSP_REG_NULL,DSP_REG_NULL},
{DSP_REG_NULL,DSP_REG_NULL},
{DSP_REG_NULL,DSP_REG_NULL},
{DSP_REG_NULL,DSP_REG_NULL},
{DSP_REG_X0,DSP_REG_A},
{DSP_REG_X0,DSP_REG_B},
{DSP_REG_Y0,DSP_REG_A},
{DSP_REG_Y0,DSP_REG_B},
{DSP_REG_X1,DSP_REG_A},
{DSP_REG_X1,DSP_REG_B},
{DSP_REG_Y1,DSP_REG_A},
{DSP_REG_Y1,DSP_REG_B}
};
static const char *registers_lmove[8] = {
"a10",
"b10",
"x",
"y",
"a",
"b",
"ab",
"ba"
};
static const char *ea_names[9] = {
"(r%d)-n%d", /* 000xxx */
"(r%d)+n%d", /* 001xxx */
"(r%d)-", /* 010xxx */
"(r%d)+", /* 011xxx */
"(r%d)", /* 100xxx */
"(r%d+n%d)", /* 101xxx */
"$%04x", /* 110000 */
"-(r%d)", /* 111xxx */
"$%06x" /* 110100 */
};
static const char *cc_name[16] = {
"cc",
"ge",
"ne",
"pl",
"nn",
"ec",
"lc",
"gt",
"cs",
"lt",
"eq",
"mi",
"nr",
"es",
"ls",
"le"
};
void dsp56k_disasm_reg_save(void)
{
memcpy(registers_save, dsp_core.registers , sizeof(registers_save));
#if DSP_DISASM_REG_PC
pc_save = dsp_core.pc;
#endif
}
void dsp56k_disasm_reg_compare(FILE *fp)
{
int i;
bool bRegA = false;
bool bRegB = false;
for (i=4; i<64; i++) {
if (registers_save[i] == dsp_core.registers[i]) {
continue;
}
switch(i) {
case DSP_REG_X0:
case DSP_REG_X1:
case DSP_REG_Y0:
case DSP_REG_Y1:
fprintf(fp, "\tReg: %s $%06x -> $%06x\n", registers_name[i], registers_save[i], dsp_core.registers[i]);
break;
case DSP_REG_R0:
case DSP_REG_R1:
case DSP_REG_R2:
case DSP_REG_R3:
case DSP_REG_R4:
case DSP_REG_R5:
case DSP_REG_R6:
case DSP_REG_R7:
case DSP_REG_M0:
case DSP_REG_M1:
case DSP_REG_M2:
case DSP_REG_M3:
case DSP_REG_M4:
case DSP_REG_M5:
case DSP_REG_M6:
case DSP_REG_M7:
case DSP_REG_N0:
case DSP_REG_N1:
case DSP_REG_N2:
case DSP_REG_N3:
case DSP_REG_N4:
case DSP_REG_N5:
case DSP_REG_N6:
case DSP_REG_N7:
case DSP_REG_SR:
case DSP_REG_LA:
case DSP_REG_LC:
fprintf(fp, "\tReg: %s $%04x -> $%04x\n", registers_name[i], registers_save[i], dsp_core.registers[i]);
break;
case DSP_REG_OMR:
case DSP_REG_SP:
case DSP_REG_SSH:
case DSP_REG_SSL:
fprintf(fp, "\tReg: %s $%02x -> $%02x\n", registers_name[i], registers_save[i], dsp_core.registers[i]);
break;
case DSP_REG_A0:
case DSP_REG_A1:
case DSP_REG_A2:
if (bRegA == false) {
fprintf(fp, "\tReg: a $%02x:%06x:%06x -> $%02x:%06x:%06x\n",
registers_save[DSP_REG_A2], registers_save[DSP_REG_A1], registers_save[DSP_REG_A0],
dsp_core.registers[DSP_REG_A2], dsp_core.registers[DSP_REG_A1], dsp_core.registers[DSP_REG_A0]
);
bRegA = true;
}
break;
case DSP_REG_B0:
case DSP_REG_B1:
case DSP_REG_B2:
if (bRegB == false) {
fprintf(fp, "\tReg: b $%02x:%06x:%06x -> $%02x:%06x:%06x\n",
registers_save[DSP_REG_B2], registers_save[DSP_REG_B1], registers_save[DSP_REG_B0],
dsp_core.registers[DSP_REG_B2], dsp_core.registers[DSP_REG_B1], dsp_core.registers[DSP_REG_B0]
);
bRegB = true;
}
break;
}
}
#if DSP_DISASM_REG_PC
if (pc_save != dsp_core.pc) {
fprintf(fp, "\tReg: pc $%04x -> $%04x\n", pc_save, dsp_core.pc);
}
#endif
}
Uint16 dsp56k_disasm(dsp_trace_disasm_t mode, FILE *fp)
{
Uint32 value;
if (mode == DSP_TRACE_MODE) {
isInDisasmMode = false;
if (prev_inst_pc == dsp_core.pc) {
if (!isLooping) {
fprintf(fp, "Looping on DSP instruction at PC = $%04x\n", prev_inst_pc);
isLooping = true;
}
return 0;
}
}
else {
isInDisasmMode = true;
}
prev_inst_pc = dsp_core.pc;
isLooping = false;
cur_inst = read_memory(dsp_core.pc);
disasm_cur_inst_len = 1;
strcpy(parallelmove_name, "");
if (cur_inst < 0x100000) {
value = (cur_inst >> 11) & (BITMASK(6) << 3);
value += (cur_inst >> 5) & BITMASK(3);
opcodes8h[value]();
} else {
dsp_pm();
sprintf(str_instr, "%s %s", opcodes_alu[cur_inst & BITMASK(8)], parallelmove_name);
}
return disasm_cur_inst_len;
}
/**
* dsp56k_getInstrText : return the disasembled instructions
*/
const char* dsp56k_getInstructionText(void)
{
const int len = 50;
Uint64 count, cycles;
Uint16 cycle_diff;
float percentage;
int offset;
if (isLooping) {
*str_instr2 = 0;
}
if (disasm_cur_inst_len == 1) {
offset = sprintf(str_instr2, "p:%04x %06x (%02d cyc) %-*s\n", prev_inst_pc, cur_inst, dsp_core.instr_cycle, len, str_instr);
} else {
offset = sprintf(str_instr2, "p:%04x %06x %06x (%02d cyc) %-*s\n", prev_inst_pc, cur_inst, read_memory(prev_inst_pc + 1), dsp_core.instr_cycle, len, str_instr);
}
if (offset > 2 && Profile_DspAddressData(prev_inst_pc, &percentage, &count, &cycles, &cycle_diff)) {
offset -= 2;
sprintf(str_instr2+offset, "%5.2f%% (%"PRId64", %"PRId64", %d)\n",
percentage, count, cycles, cycle_diff);
}
return str_instr2;
}
static void dsp_pm_class2(void) {
dsp_pm();
sprintf(str_instr, "%s %s", opcodes_alu[cur_inst & BITMASK(8)], parallelmove_name);
}
static Uint32 read_memory(Uint32 currPc)
{
Uint32 value;
if (currPc<0x200) {
value = dsp_core.ramint[DSP_SPACE_P][currPc];
} else {
value = dsp_core.ramext[currPc & (DSP_RAMSIZE-1)];
}
return value & BITMASK(24);
}
/**********************************
* Conditions code calculation
**********************************/
static void dsp_calc_cc(Uint32 cc_mode, char *dest)
{
strcpy(dest, cc_name[cc_mode & BITMASK(4)]);
}
/**********************************
* Effective address calculation
**********************************/
static int dsp_calc_ea(Uint32 ea_mode, char *dest)
{
int value, retour, numreg;
value = (ea_mode >> 3) & BITMASK(3);
numreg = ea_mode & BITMASK(3);
retour = 0;
switch (value) {
case 0:
/* (Rx)-Nx */
sprintf(dest, ea_names[value], numreg, numreg);
break;
case 1:
/* (Rx)+Nx */
sprintf(dest, ea_names[value], numreg, numreg);
break;
case 5:
/* (Rx+Nx) */
sprintf(dest, ea_names[value], numreg, numreg);
break;
case 2:
/* (Rx)- */
sprintf(dest, ea_names[value], numreg);
break;
case 3:
/* (Rx)+ */
sprintf(dest, ea_names[value], numreg);
break;
case 4:
/* (Rx) */
sprintf(dest, ea_names[value], numreg);
break;
case 7:
/* -(Rx) */
sprintf(dest, ea_names[value], numreg);
break;
case 6:
disasm_cur_inst_len++;
switch ((ea_mode >> 2) & 1) {
case 0:
/* Absolute address */
sprintf(dest, ea_names[value], read_memory(dsp_core.pc+1));
break;
case 1:
/* Immediate value */
sprintf(dest, ea_names[8], read_memory(dsp_core.pc+1));
retour = 1;
break;
}
break;
}
return retour;
}
static void opcode8h_0(void)
{
switch(cur_inst) {
case 0x000000:
dsp_nop();
break;
case 0x000004:
dsp_rti();
break;
case 0x000005:
dsp_illegal();
break;
case 0x000006:
dsp_swi();
break;
case 0x00000c:
dsp_rts();
break;
case 0x000084:
dsp_reset();
break;
case 0x000086:
dsp_wait();
break;
case 0x000087:
dsp_stop();
break;
case 0x00008c:
dsp_enddo();
break;
default:
dsp_undefined();
break;
}
}
/**********************************
* Non-parallel moves instructions
**********************************/
static void dsp_undefined(void)
{
/* In Disasm mode, display dc instruction_opcode */
if (isInDisasmMode)
sprintf(str_instr, "dc $%06x", cur_inst);
/* In trace mode, display unknown instruction */
else
sprintf(str_instr, "$%06x unknown instruction", cur_inst);
}
static void dsp_andi(void)
{
switch(cur_inst & BITMASK(2)) {
case 0:
sprintf(str_instr, "andi #$%02x,mr", (cur_inst>>8) & BITMASK(8));
break;
case 1:
sprintf(str_instr, "andi #$%02x,ccr", (cur_inst>>8) & BITMASK(8));
break;
case 2:
sprintf(str_instr, "andi #$%02x,omr", (cur_inst>>8) & BITMASK(8));
break;
default:
break;
}
}
static void dsp_bchg_aa(void)
{
/* bchg #n,x:aa */
/* bchg #n,y:aa */
char name[16];
Uint32 memspace, value, numbit;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
if (memspace) {
sprintf(name,"y:$%04x",value);
} else {
sprintf(name,"x:$%04x",value);
}
sprintf(str_instr,"bchg #%d,%s", numbit, name);
}
static void dsp_bchg_ea(void)
{
/* bchg #n,x:ea */
/* bchg #n,y:ea */
char name[18], addr_name[16];
Uint32 memspace, value, numbit;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
dsp_calc_ea(value, addr_name);
if (memspace) {
sprintf(name,"y:%s",addr_name);
} else {
sprintf(name,"x:%s",addr_name);
}
sprintf(str_instr,"bchg #%d,%s", numbit, name);
}
static void dsp_bchg_pp(void)
{
/* bchg #n,x:pp */
/* bchg #n,y:pp */
char name[16];
Uint32 memspace, value, numbit;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
if (memspace) {
sprintf(name,"y:$%04x",value+0xffc0);
} else {
sprintf(name,"x:$%04x",value+0xffc0);
}
sprintf(str_instr,"bchg #%d,%s", numbit, name);
}
static void dsp_bchg_reg(void)
{
/* bchg #n,R */
Uint32 value, numbit;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
sprintf(str_instr,"bchg #%d,%s", numbit, registers_name[value]);
}
static void dsp_bclr_aa(void)
{
/* bclr #n,x:aa */
/* bclr #n,y:aa */
char name[16];
Uint32 memspace, value, numbit;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
if (memspace) {
sprintf(name,"y:$%04x",value);
} else {
sprintf(name,"x:$%04x",value);
}
sprintf(str_instr,"bclr #%d,%s", numbit, name);
}
static void dsp_bclr_ea(void)
{
/* bclr #n,x:ea */
/* bclr #n,y:ea */
char name[18], addr_name[16];
Uint32 memspace, value, numbit;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
dsp_calc_ea(value, addr_name);
if (memspace) {
sprintf(name,"y:%s",addr_name);
} else {
sprintf(name,"x:%s",addr_name);
}
sprintf(str_instr,"bclr #%d,%s", numbit, name);
}
static void dsp_bclr_pp(void)
{
/* bclr #n,x:pp */
/* bclr #n,y:pp */
char name[16];
Uint32 memspace, value, numbit;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
if (memspace) {
sprintf(name,"y:$%04x",value+0xffc0);
} else {
sprintf(name,"x:$%04x",value+0xffc0);
}
sprintf(str_instr,"bclr #%d,%s", numbit, name);
}
static void dsp_bclr_reg(void)
{
/* bclr #n,R */
Uint32 value, numbit;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
sprintf(str_instr,"bclr #%d,%s", numbit, registers_name[value]);
}
static void dsp_bset_aa(void)
{
/* bset #n,x:aa */
/* bset #n,y:aa */
char name[16];
Uint32 memspace, value, numbit;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
if (memspace) {
sprintf(name,"y:$%04x",value);
} else {
sprintf(name,"x:$%04x",value);
}
sprintf(str_instr,"bset #%d,%s", numbit, name);
}
static void dsp_bset_ea(void)
{
/* bset #n,x:ea */
/* bset #n,y:ea */
char name[18], addr_name[16];
Uint32 memspace, value, numbit;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
dsp_calc_ea(value, addr_name);
if (memspace) {
sprintf(name,"y:%s",addr_name);
} else {
sprintf(name,"x:%s",addr_name);
}
sprintf(str_instr,"bset #%d,%s", numbit, name);
}
static void dsp_bset_pp(void)
{
/* bset #n,x:pp */
/* bset #n,y:pp */
char name[16];
Uint32 memspace, value, numbit;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
if (memspace) {
sprintf(name,"y:$%04x",value+0xffc0);
} else {
sprintf(name,"x:$%04x",value+0xffc0);
}
sprintf(str_instr,"bset #%d,%s", numbit, name);
}
static void dsp_bset_reg(void)
{
/* bset #n,R */
Uint32 value, numbit;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
sprintf(str_instr,"bset #%d,%s", numbit, registers_name[value]);
}
static void dsp_btst_aa(void)
{
/* btst #n,x:aa */
/* btst #n,y:aa */
char name[16];
Uint32 memspace, value, numbit;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
if (memspace) {
sprintf(name,"y:$%04x",value);
} else {
sprintf(name,"x:$%04x",value);
}
sprintf(str_instr,"btst #%d,%s", numbit, name);
}
static void dsp_btst_ea(void)
{
/* btst #n,x:ea */
/* btst #n,y:ea */
char name[18], addr_name[16];
Uint32 memspace, value, numbit;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
dsp_calc_ea(value, addr_name);
if (memspace) {
sprintf(name,"y:%s",addr_name);
} else {
sprintf(name,"x:%s",addr_name);
}
sprintf(str_instr,"btst #%d,%s", numbit, name);
}
static void dsp_btst_pp(void)
{
/* btst #n,x:pp */
/* btst #n,y:pp */
char name[16];
Uint32 memspace, value, numbit;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
if (memspace) {
sprintf(name,"y:$%04x",value+0xffc0);
} else {
sprintf(name,"x:$%04x",value+0xffc0);
}
sprintf(str_instr,"btst #%d,%s", numbit, name);
}
static void dsp_btst_reg(void)
{
/* btst #n,R */
Uint32 value, numbit;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
sprintf(str_instr,"btst #%d,%s", numbit, registers_name[value]);
}
static void dsp_div(void)
{
Uint32 srcreg=DSP_REG_NULL, destreg;
switch((cur_inst>>4) & BITMASK(2)) {
case 0:
srcreg = DSP_REG_X0;
break;
case 1:
srcreg = DSP_REG_Y0;
break;
case 2:
srcreg = DSP_REG_X1;
break;
case 3:
srcreg = DSP_REG_Y1;
break;
}
destreg = DSP_REG_A+((cur_inst>>3) & 1);
sprintf(str_instr,"div %s,%s", registers_name[srcreg],registers_name[destreg]);
}
static void dsp_do_aa(void)
{
char name[16];
disasm_cur_inst_len++;
if (cur_inst & (1<<6)) {
sprintf(name, "y:$%04x", (cur_inst>>8) & BITMASK(6));
} else {
sprintf(name, "x:$%04x", (cur_inst>>8) & BITMASK(6));
}
sprintf(str_instr,"do %s,p:$%04x",
name,
read_memory(dsp_core.pc+1)
);
}
static void dsp_do_imm(void)
{
disasm_cur_inst_len++;
sprintf(str_instr,"do #$%04x,p:$%04x",
((cur_inst>>8) & BITMASK(8))|((cur_inst & BITMASK(4))<<8),
read_memory(dsp_core.pc+1)
);
}
static void dsp_do_ea(void)
{
char addr_name[16], name[18];
Uint32 ea_mode;
disasm_cur_inst_len++;
ea_mode = (cur_inst>>8) & BITMASK(6);
dsp_calc_ea(ea_mode, addr_name);
if (cur_inst & (1<<6)) {
sprintf(name, "y:%s", addr_name);
} else {
sprintf(name, "x:%s", addr_name);
}
sprintf(str_instr,"do %s,p:$%04x",
name,
read_memory(dsp_core.pc+1)
);
}
static void dsp_do_reg(void)
{
disasm_cur_inst_len++;
sprintf(str_instr,"do %s,p:$%04x",
registers_name[(cur_inst>>8) & BITMASK(6)],
read_memory(dsp_core.pc+1)
);
}
static void dsp_enddo(void)
{
sprintf(str_instr,"enddo");
}
static void dsp_illegal(void)
{
sprintf(str_instr,"illegal");
}
static void dsp_jcc_ea(void)
{
char cond_name[16], addr_name[16];
Uint32 cc_code=0;
dsp_calc_ea((cur_inst >>8) & BITMASK(6), addr_name);
cc_code=cur_inst & BITMASK(4);
dsp_calc_cc(cc_code, cond_name);
sprintf(str_instr,"j%s p:%s", cond_name, addr_name);
}
static void dsp_jcc_imm(void)
{
char cond_name[16], addr_name[16];
Uint32 cc_code=0;
sprintf(addr_name, "$%04x", cur_inst & BITMASK(12));
cc_code=(cur_inst>>12) & BITMASK(4);
dsp_calc_cc(cc_code, cond_name);
sprintf(str_instr,"j%s p:%s", cond_name, addr_name);
}
static void dsp_jclr_aa(void)
{
/* jclr #n,x:aa,p:xx */
/* jclr #n,y:aa,p:xx */
char srcname[16];
Uint32 memspace, value, numbit;
disasm_cur_inst_len++;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
if (memspace) {
sprintf(srcname, "y:$%04x", value);
} else {
sprintf(srcname, "x:$%04x", value);
}
sprintf(str_instr,"jclr #%d,%s,p:$%04x",
numbit,
srcname,
read_memory(dsp_core.pc+1)
);
}
static void dsp_jclr_ea(void)
{
/* jclr #n,x:ea,p:xx */
/* jclr #n,y:ea,p:xx */
char srcname[18], addr_name[16];
Uint32 memspace, value, numbit;
disasm_cur_inst_len++;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
dsp_calc_ea(value, addr_name);
if (memspace) {
sprintf(srcname, "y:%s", addr_name);
} else {
sprintf(srcname, "x:%s", addr_name);
}
sprintf(str_instr,"jclr #%d,%s,p:$%04x",
numbit,
srcname,
read_memory(dsp_core.pc+1)
);
}
static void dsp_jclr_pp(void)
{
/* jclr #n,x:pp,p:xx */
/* jclr #n,y:pp,p:xx */
char srcname[16];
Uint32 memspace, value, numbit;
disasm_cur_inst_len++;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
value += 0xffc0;
if (memspace) {
sprintf(srcname, "y:$%04x", value);
} else {
sprintf(srcname, "x:$%04x", value);
}
sprintf(str_instr,"jclr #%d,%s,p:$%04x",
numbit,
srcname,
read_memory(dsp_core.pc+1)
);
}
static void dsp_jclr_reg(void)
{
/* jclr #n,R,p:xx */
Uint32 value, numbit;
disasm_cur_inst_len++;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
sprintf(str_instr,"jclr #%d,%s,p:$%04x",
numbit,
registers_name[value],
read_memory(dsp_core.pc+1)
);
}
static void dsp_jmp_imm(void)
{
sprintf(str_instr,"jmp p:$%04x", cur_inst & BITMASK(12));
}
static void dsp_jmp_ea(void)
{
char dstname[16];
dsp_calc_ea((cur_inst >>8) & BITMASK(6), dstname);
sprintf(str_instr,"jmp p:%s", dstname);
}
static void dsp_jscc_ea(void)
{
char cond_name[16], addr_name[16];
Uint32 cc_code=0;
dsp_calc_ea((cur_inst>>8) & BITMASK(6), addr_name);
cc_code=cur_inst & BITMASK(4);
dsp_calc_cc(cc_code, cond_name);
sprintf(str_instr,"js%s p:%s", cond_name, addr_name);
}
static void dsp_jscc_imm(void)
{
char cond_name[16], addr_name[16];
Uint32 cc_code=0;
sprintf(addr_name, "$%04x", cur_inst & BITMASK(12));
cc_code=(cur_inst>>12) & BITMASK(4);
dsp_calc_cc(cc_code, cond_name);
sprintf(str_instr,"js%s p:%s", cond_name, addr_name);
}
static void dsp_jsclr_aa(void)
{
/* jsclr #n,x:aa,p:xx */
/* jsclr #n,y:aa,p:xx */
char srcname[16];
Uint32 memspace, value, numbit;
disasm_cur_inst_len++;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
if (memspace) {
sprintf(srcname, "y:$%04x", value);
} else {
sprintf(srcname, "x:$%04x", value);
}
sprintf(str_instr,"jsclr #%d,%s,p:$%04x",
numbit,
srcname,
read_memory(dsp_core.pc+1)
);
}
static void dsp_jsclr_ea(void)
{
/* jsclr #n,x:ea,p:xx */
/* jsclr #n,y:ea,p:xx */
char srcname[18], addr_name[16];
Uint32 memspace, value, numbit;
disasm_cur_inst_len++;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
dsp_calc_ea(value, addr_name);
if (memspace) {
sprintf(srcname, "y:%s", addr_name);
} else {
sprintf(srcname, "x:%s", addr_name);
}
sprintf(str_instr,"jsclr #%d,%s,p:$%04x",
numbit,
srcname,
read_memory(dsp_core.pc+1)
);
}
static void dsp_jsclr_pp(void)
{
/* jsclr #n,x:pp,p:xx */
/* jsclr #n,y:pp,p:xx */
char srcname[16];
Uint32 memspace, value, numbit;
disasm_cur_inst_len++;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
value += 0xffc0;
if (memspace) {
sprintf(srcname, "y:$%04x", value);
} else {
sprintf(srcname, "x:$%04x", value);
}
sprintf(str_instr,"jsclr #%d,%s,p:$%04x",
numbit,
srcname,
read_memory(dsp_core.pc+1)
);
}
static void dsp_jsclr_reg(void)
{
/* jsclr #n,R,p:xx */
Uint32 value, numbit;
disasm_cur_inst_len++;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
sprintf(str_instr,"jsclr #%d,%s,p:$%04x",
numbit,
registers_name[value],
read_memory(dsp_core.pc+1)
);
}
static void dsp_jset_aa(void)
{
/* jset #n,x:aa,p:xx */
/* jset #n,y:aa,p:xx */
char srcname[16];
Uint32 memspace, value, numbit;
disasm_cur_inst_len++;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
if (memspace) {
sprintf(srcname, "y:$%04x", value);
} else {
sprintf(srcname, "x:$%04x", value);
}
sprintf(str_instr,"jset #%d,%s,p:$%04x",
numbit,
srcname,
read_memory(dsp_core.pc+1)
);
}
static void dsp_jset_ea(void)
{
/* jset #n,x:ea,p:xx */
/* jset #n,y:ea,p:xx */
char srcname[18], addr_name[16];
Uint32 memspace, value, numbit;
disasm_cur_inst_len++;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
dsp_calc_ea(value, addr_name);
if (memspace) {
sprintf(srcname, "y:%s", addr_name);
} else {
sprintf(srcname, "x:%s", addr_name);
}
sprintf(str_instr,"jset #%d,%s,p:$%04x",
numbit,
srcname,
read_memory(dsp_core.pc+1)
);
}
static void dsp_jset_pp(void)
{
/* jset #n,x:pp,p:xx */
/* jset #n,y:pp,p:xx */
char srcname[16];
Uint32 memspace, value, numbit;
disasm_cur_inst_len++;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
value += 0xffc0;
if (memspace) {
sprintf(srcname, "y:$%04x", value);
} else {
sprintf(srcname, "x:$%04x", value);
}
sprintf(str_instr,"jset #%d,%s,p:$%04x",
numbit,
srcname,
read_memory(dsp_core.pc+1)
);
}
static void dsp_jset_reg(void)
{
/* jset #n,R,p:xx */
Uint32 value, numbit;
disasm_cur_inst_len++;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
sprintf(str_instr,"jset #%d,%s,p:$%04x",
numbit,
registers_name[value],
read_memory(dsp_core.pc+1)
);
}
static void dsp_jsr_imm(void)
{
sprintf(str_instr,"jsr p:$%04x", cur_inst & BITMASK(12));
}
static void dsp_jsr_ea(void)
{
char dstname[16];
dsp_calc_ea((cur_inst>>8) & BITMASK(6),dstname);
sprintf(str_instr,"jsr p:%s", dstname);
}
static void dsp_jsset_aa(void)
{
/* jsset #n,x:aa,p:xx */
/* jsset #n,y:aa,p:xx */
char srcname[16];
Uint32 memspace, value, numbit;
disasm_cur_inst_len++;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
if (memspace) {
sprintf(srcname, "y:$%04x", value);
} else {
sprintf(srcname, "x:$%04x", value);
}
sprintf(str_instr,"jsset #%d,%s,p:$%04x",
numbit,
srcname,
read_memory(dsp_core.pc+1)
);
}
static void dsp_jsset_ea(void)
{
/* jsset #n,x:ea,p:xx */
/* jsset #n,y:ea,p:xx */
char srcname[18], addr_name[16];
Uint32 memspace, value, numbit;
disasm_cur_inst_len++;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
dsp_calc_ea(value, addr_name);
if (memspace) {
sprintf(srcname, "y:%s", addr_name);
} else {
sprintf(srcname, "x:%s", addr_name);
}
sprintf(str_instr,"jsset #%d,%s,p:$%04x",
numbit,
srcname,
read_memory(dsp_core.pc+1)
);
}
static void dsp_jsset_pp(void)
{
/* jsset #n,x:pp,p:xx */
/* jsset #n,y:pp,p:xx */
char srcname[16];
Uint32 memspace, value, numbit;
disasm_cur_inst_len++;
memspace = (cur_inst>>6) & 1;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
value += 0xffc0;
if (memspace) {
sprintf(srcname, "y:$%04x", value);
} else {
sprintf(srcname, "x:$%04x", value);
}
sprintf(str_instr,"jsset #%d,%s,p:$%04x",
numbit,
srcname,
read_memory(dsp_core.pc+1)
);
}
static void dsp_jsset_reg(void)
{
/* jsset #n,r,p:xx */
Uint32 value, numbit;
disasm_cur_inst_len++;
value = (cur_inst>>8) & BITMASK(6);
numbit = cur_inst & BITMASK(5);
sprintf(str_instr,"jsset #%d,%s,p:$%04x",
numbit,
registers_name[value],
read_memory(dsp_core.pc+1)
);
}
static void dsp_lua(void)
{
char addr_name[16], numreg;
dsp_calc_ea((cur_inst>>8) & BITMASK(5), addr_name);
numreg = cur_inst & BITMASK(3);
if (cur_inst & (1<<3))
sprintf(str_instr,"lua %s,n%d", addr_name, numreg);
else
sprintf(str_instr,"lua %s,r%d", addr_name, numreg);
}
static void dsp_movec_reg(void)
{
Uint32 numreg1, numreg2;
/* S1,D2 */
/* S2,D1 */
numreg2 = (cur_inst>>8) & BITMASK(6);
numreg1 = cur_inst & BITMASK(6);
if (cur_inst & (1<<15)) {
/* Write D1 */
sprintf(str_instr,"movec %s,%s", registers_name[numreg2], registers_name[numreg1]);
} else {
/* Read S1 */
sprintf(str_instr,"movec %s,%s", registers_name[numreg1], registers_name[numreg2]);
}
}
static void dsp_movec_aa(void)
{
const char *spacename;
char srcname[16],dstname[16];
Uint32 numreg, addr;
/* x:aa,D1 */
/* S1,x:aa */
/* y:aa,D1 */
/* S1,y:aa */
numreg = cur_inst & BITMASK(6);
addr = (cur_inst>>8) & BITMASK(6);
if (cur_inst & (1<<6)) {
spacename="y";
} else {
spacename="x";
}
if (cur_inst & (1<<15)) {
/* Write D1 */
sprintf(srcname, "%s:$%04x", spacename, addr);
strcpy(dstname, registers_name[numreg]);
} else {
/* Read S1 */
strcpy(srcname, registers_name[numreg]);
sprintf(dstname, "%s:$%04x", spacename, addr);
}
sprintf(str_instr,"movec %s,%s", srcname, dstname);
}
static void dsp_movec_imm(void)
{
Uint32 numreg;
/* #xx,D1 */
numreg = cur_inst & BITMASK(6);
sprintf(str_instr,"movec #$%02x,%s", (cur_inst>>8) & BITMASK(8), registers_name[numreg]);
}
static void dsp_movec_ea(void)
{
const char *spacename;
char srcname[18], dstname[18], addr_name[16];
Uint32 numreg, ea_mode;
int retour;
/* x:ea,D1 */
/* S1,x:ea */
/* y:ea,D1 */
/* S1,y:ea */
/* #xxxx,D1 */
numreg = cur_inst & BITMASK(6);
ea_mode = (cur_inst>>8) & BITMASK(6);
retour = dsp_calc_ea(ea_mode, addr_name);
if (cur_inst & (1<<6)) {
spacename="y";
} else {
spacename="x";
}
if (cur_inst & (1<<15)) {
/* Write D1 */
if (retour) {
sprintf(srcname, "#%s", addr_name);
} else {
sprintf(srcname, "%s:%s", spacename, addr_name);
}
strcpy(dstname, registers_name[numreg]);
} else {
/* Read S1 */
strcpy(srcname, registers_name[numreg]);
sprintf(dstname, "%s:%s", spacename, addr_name);
}
sprintf(str_instr,"movec %s,%s", srcname, dstname);
}
static void dsp_movem_aa(void)
{
/* S,p:aa */
/* p:aa,D */
char addr_name[16], srcname[18], dstname[18];
Uint32 numreg;
sprintf(addr_name, "$%04x",(cur_inst>>8) & BITMASK(6));
numreg = cur_inst & BITMASK(6);
if (cur_inst & (1<<15)) {
/* Write D */
sprintf(srcname, "p:%s", addr_name);
strcpy(dstname, registers_name[numreg]);
} else {
/* Read S */
strcpy(srcname, registers_name[numreg]);
sprintf(dstname, "p:%s", addr_name);
}
sprintf(str_instr,"movem %s,%s", srcname, dstname);
}
static void dsp_movem_ea(void)
{
/* S,p:ea */
/* p:ea,D */
char addr_name[16], srcname[18], dstname[18];
Uint32 ea_mode, numreg;
ea_mode = (cur_inst>>8) & BITMASK(6);
dsp_calc_ea(ea_mode, addr_name);
numreg = cur_inst & BITMASK(6);
if (cur_inst & (1<<15)) {
/* Write D */
sprintf(srcname, "p:%s", addr_name);
strcpy(dstname, registers_name[numreg]);
} else {
/* Read S */
strcpy(srcname, registers_name[numreg]);
sprintf(dstname, "p:%s", addr_name);
}
sprintf(str_instr,"movem %s,%s", srcname, dstname);
}
static void dsp_movep_0(void)
{
char srcname[16]="",dstname[16]="";
Uint32 addr, memspace, numreg;
/* S,x:pp */
/* x:pp,D */
/* S,y:pp */
/* y:pp,D */
addr = 0xffc0 + (cur_inst & BITMASK(6));
memspace = (cur_inst>>16) & 1;
numreg = (cur_inst>>8) & BITMASK(6);
if (cur_inst & (1<<15)) {
/* Write pp */
strcpy(srcname, registers_name[numreg]);
if (memspace) {
sprintf(dstname, "y:$%04x", addr);
} else {
sprintf(dstname, "x:$%04x", addr);
}
} else {
/* Read pp */
if (memspace) {
sprintf(srcname, "y:$%04x", addr);
} else {
sprintf(srcname, "x:$%04x", addr);
}
strcpy(dstname, registers_name[numreg]);
}
sprintf(str_instr,"movep %s,%s", srcname, dstname);
}
static void dsp_movep_1(void)
{
char srcname[18] = "", dstname[18] = "", name[16] = "";
Uint32 addr, memspace;
/* p:ea,x:pp */
/* x:pp,p:ea */
/* p:ea,y:pp */
/* y:pp,p:ea */
addr = 0xffc0 + (cur_inst & BITMASK(6));
dsp_calc_ea((cur_inst>>8) & BITMASK(6), name);
memspace = (cur_inst>>16) & 1;
if (cur_inst & (1<<15)) {
/* Write pp */
sprintf(srcname, "p:%s", name);
if (memspace) {
sprintf(dstname, "y:$%04x", addr);
} else {
sprintf(dstname, "x:$%04x", addr);
}
} else {
/* Read pp */
if (memspace) {
sprintf(srcname, "y:$%04x", addr);
} else {
sprintf(srcname, "x:$%04x", addr);
}
sprintf(dstname, "p:%s", name);
}
sprintf(str_instr,"movep %s,%s", srcname, dstname);
}
static void dsp_movep_23(void)
{
char srcname[18] = "", dstname[18] = "", name[16] = "";
Uint32 addr, memspace, easpace, retour;
/* x:ea,x:pp */
/* y:ea,x:pp */
/* #xxxxxx,x:pp */
/* x:pp,x:ea */
/* x:pp,y:ea */
/* x:ea,y:pp */
/* y:ea,y:pp */
/* #xxxxxx,y:pp */
/* y:pp,y:ea */
/* y:pp,x:ea */
addr = 0xffc0 + (cur_inst & BITMASK(6));
retour = dsp_calc_ea((cur_inst>>8) & BITMASK(6), name);
memspace = (cur_inst>>16) & 1;
easpace = (cur_inst>>6) & 1;
if (cur_inst & (1<<15)) {
/* Write pp */
if (retour) {
sprintf(srcname, "#%s", name);
} else {
if (easpace) {
sprintf(srcname, "y:%s", name);
} else {
sprintf(srcname, "x:%s", name);
}
}
if (memspace) {
sprintf(dstname, "y:$%04x", addr);
} else {
sprintf(dstname, "x:$%04x", addr);
}
} else {
/* Read pp */
if (memspace) {
sprintf(srcname, "y:$%04x", addr);
} else {
sprintf(srcname, "x:$%04x", addr);
}
if (easpace) {
sprintf(dstname, "y:%s", name);
} else {
sprintf(dstname, "x:%s", name);
}
}
sprintf(str_instr,"movep %s,%s", srcname, dstname);
}
static void dsp_nop(void)
{
sprintf(str_instr,"nop");
}
static void dsp_norm(void)
{
Uint32 srcreg, destreg;
srcreg = DSP_REG_R0+((cur_inst>>8) & BITMASK(3));
destreg = DSP_REG_A+((cur_inst>>3) & 1);
sprintf(str_instr,"norm %s,%s", registers_name[srcreg], registers_name[destreg]);
}
static void dsp_ori(void)
{
switch(cur_inst & BITMASK(2)) {
case 0:
sprintf(str_instr,"ori #$%02x,mr", (cur_inst>>8) & BITMASK(8));
break;
case 1:
sprintf(str_instr,"ori #$%02x,ccr", (cur_inst>>8) & BITMASK(8));
break;
case 2:
sprintf(str_instr,"ori #$%02x,omr", (cur_inst>>8) & BITMASK(8));
break;
default:
break;
}
}
static void dsp_rep_aa(void)
{
char name[16];
/* x:aa */
/* y:aa */
if (cur_inst & (1<<6)) {
sprintf(name, "y:$%04x",(cur_inst>>8) & BITMASK(6));
} else {
sprintf(name, "x:$%04x",(cur_inst>>8) & BITMASK(6));
}
sprintf(str_instr,"rep %s", name);
}
static void dsp_rep_imm(void)
{
/* #xxx */
sprintf(str_instr,"rep #$%02x", ((cur_inst>>8) & BITMASK(8))
+ ((cur_inst & BITMASK(4))<<8));
}
static void dsp_rep_ea(void)
{
char name[18], addr_name[16];
/* x:ea */
/* y:ea */
dsp_calc_ea((cur_inst>>8) & BITMASK(6), addr_name);
if (cur_inst & (1<<6)) {
sprintf(name, "y:%s",addr_name);
} else {
sprintf(name, "x:%s",addr_name);
}
sprintf(str_instr,"rep %s", name);
}
static void dsp_rep_reg(void)
{
/* R */
sprintf(str_instr,"rep %s", registers_name[(cur_inst>>8) & BITMASK(6)]);
}
static void dsp_reset(void)
{
sprintf(str_instr,"reset");
}
static void dsp_rti(void)
{
sprintf(str_instr,"rti");
}
static void dsp_rts(void)
{
sprintf(str_instr,"rts");
}
static void dsp_stop(void)
{
sprintf(str_instr,"stop");
}
static void dsp_swi(void)
{
sprintf(str_instr,"swi");
}
static void dsp_tcc(void)
{
char ccname[16];
Uint32 src1reg, dst1reg, src2reg, dst2reg;
dsp_calc_cc((cur_inst>>12) & BITMASK(4), ccname);
src1reg = registers_tcc[(cur_inst>>3) & BITMASK(4)][0];
dst1reg = registers_tcc[(cur_inst>>3) & BITMASK(4)][1];
if (cur_inst & (1<<16)) {
src2reg = DSP_REG_R0+((cur_inst>>8) & BITMASK(3));
dst2reg = DSP_REG_R0+(cur_inst & BITMASK(3));
sprintf(str_instr,"t%s %s,%s %s,%s",
ccname,
registers_name[src1reg],
registers_name[dst1reg],
registers_name[src2reg],
registers_name[dst2reg]
);
} else {
sprintf(str_instr,"t%s %s,%s",
ccname,
registers_name[src1reg],
registers_name[dst1reg]
);
}
}
static void dsp_wait(void)
{
sprintf(str_instr,"wait");
}
/**********************************
* Parallel moves
**********************************/
static void dsp_pm(void)
{
Uint32 value;
value = (cur_inst >> 20) & BITMASK(4);
opcodes_parmove[value]();
}
static void dsp_pm_0(void)
{
char space_name[16], addr_name[16];
Uint32 memspace, numreg1, numreg2;
/*
0000 100d 00mm mrrr S,x:ea x0,D
0000 100d 10mm mrrr S,y:ea y0,D
*/
memspace = (cur_inst>>15) & 1;
numreg1 = DSP_REG_A+((cur_inst>>16) & 1);
dsp_calc_ea((cur_inst>>8) & BITMASK(6), addr_name);
if (memspace) {
strcpy(space_name,"y");
numreg2 = DSP_REG_Y0;
} else {
strcpy(space_name,"x");
numreg2 = DSP_REG_X0;
}
sprintf(parallelmove_name,
"%s,%s:%s %s,%s",
registers_name[numreg1],
space_name,
addr_name,
registers_name[numreg2],
registers_name[numreg1]
);
}
static void dsp_pm_1(void)
{
/*
0001 ffdf w0mm mrrr x:ea,D1 S2,D2
S1,x:ea S2,D2
#xxxxxx,D1 S2,D2
0001 deff w1mm mrrr S1,D1 y:ea,D2
S1,D1 S2,y:ea
S1,D1 #xxxxxx,D2
*/
char addr_name[16];
Uint32 memspace, write_flag, retour, s1reg, s2reg, d1reg, d2reg;
memspace = (cur_inst>>14) & 1;
write_flag = (cur_inst>>15) & 1;
retour = dsp_calc_ea((cur_inst>>8) & BITMASK(6), addr_name);
if (memspace==DSP_SPACE_Y) {
s2reg = d2reg = DSP_REG_Y0;
switch((cur_inst>>16) & BITMASK(2)) {
case 0: s2reg = d2reg = DSP_REG_Y0; break;
case 1: s2reg = d2reg = DSP_REG_Y1; break;
case 2: s2reg = d2reg = DSP_REG_A; break;
case 3: s2reg = d2reg = DSP_REG_B; break;
}
s1reg = DSP_REG_A+((cur_inst>>19) & 1);
d1reg = DSP_REG_X0+((cur_inst>>18) & 1);
if (write_flag) {
/* Write D2 */
if (retour) {
sprintf(parallelmove_name,"%s,%s #%s,%s",
registers_name[s1reg],
registers_name[d1reg],
addr_name,
registers_name[d2reg]
);
} else {
sprintf(parallelmove_name,"%s,%s y:%s,%s",
registers_name[s1reg],
registers_name[d1reg],
addr_name,
registers_name[d2reg]
);
}
} else {
/* Read S2 */
sprintf(parallelmove_name,"%s,%s %s,y:%s",
registers_name[s1reg],
registers_name[d1reg],
registers_name[s2reg],
addr_name
);
}
} else {
s1reg = d1reg = DSP_REG_X0;
switch((cur_inst>>18) & BITMASK(2)) {
case 0: s1reg = d1reg = DSP_REG_X0; break;
case 1: s1reg = d1reg = DSP_REG_X1; break;
case 2: s1reg = d1reg = DSP_REG_A; break;
case 3: s1reg = d1reg = DSP_REG_B; break;
}
s2reg = DSP_REG_A+((cur_inst>>17) & 1);
d2reg = DSP_REG_Y0+((cur_inst>>16) & 1);
if (write_flag) {
/* Write D1 */
if (retour) {
sprintf(parallelmove_name,"#%s,%s %s,%s",
addr_name,
registers_name[d1reg],
registers_name[s2reg],
registers_name[d2reg]
);
} else {
sprintf(parallelmove_name,"x:%s,%s %s,%s",
addr_name,
registers_name[d1reg],
registers_name[s2reg],
registers_name[d2reg]
);
}
} else {
/* Read S1 */
sprintf(parallelmove_name,"%s,x:%s %s,%s",
registers_name[s1reg],
addr_name,
registers_name[s2reg],
registers_name[d2reg]
);
}
}
}
static void dsp_pm_2(void)
{
char addr_name[16];
Uint32 numreg1, numreg2;
/*
0010 0000 0000 0000 nop
0010 0000 010m mrrr R update
0010 00ee eeed dddd S,D
001d dddd iiii iiii #xx,D
*/
if (((cur_inst >> 8) & 0xffff) == 0x2000) {
return;
}
if (((cur_inst >> 8) & 0xffe0) == 0x2040) {
dsp_calc_ea((cur_inst>>8) & BITMASK(5), addr_name);
sprintf(parallelmove_name, "%s,r%d",addr_name, (cur_inst>>8) & BITMASK(3));
return;
}
if (((cur_inst >> 8) & 0xfc00) == 0x2000) {
numreg1 = (cur_inst>>13) & BITMASK(5);
numreg2 = (cur_inst>>8) & BITMASK(5);
sprintf(parallelmove_name, "%s,%s", registers_name[numreg1], registers_name[numreg2]);
return;
}
numreg1 = (cur_inst>>16) & BITMASK(5);
sprintf(parallelmove_name, "#$%02x,%s", (cur_inst >> 8) & BITMASK(8), registers_name[numreg1]);
}
static void dsp_pm_4(void)
{
char addr_name[16];
Uint32 value, retour, ea_mode, memspace;
/*
0100 l0ll w0aa aaaa l:aa,D
S,l:aa
0100 l0ll w1mm mrrr l:ea,D
S,l:ea
01dd 0ddd w0aa aaaa x:aa,D
S,x:aa
01dd 0ddd w1mm mrrr x:ea,D
S,x:ea
#xxxxxx,D
01dd 1ddd w0aa aaaa y:aa,D
S,y:aa
01dd 1ddd w1mm mrrr y:ea,D
S,y:ea
#xxxxxx,D
*/
value = (cur_inst>>16) & BITMASK(3);
value |= (cur_inst>>17) & (BITMASK(2)<<3);
ea_mode = (cur_inst>>8) & BITMASK(6);
if ((value>>2)==0) {
/* L: memory move */
if (cur_inst & (1<<14)) {
retour = dsp_calc_ea(ea_mode, addr_name);
} else {
sprintf(addr_name,"$%04x", ea_mode);
retour = 0;
}
value = (cur_inst>>16) & BITMASK(2);
value |= (cur_inst>>17) & (1<<2);
if (cur_inst & (1<<15)) {
/* Write D */
if (retour) {
sprintf(parallelmove_name, "#%s,%s", addr_name, registers_lmove[value]);
} else {
sprintf(parallelmove_name, "l:%s,%s", addr_name, registers_lmove[value]);
}
} else {
/* Read S */
sprintf(parallelmove_name, "%s,l:%s", registers_lmove[value], addr_name);
}
return;
}
memspace = (cur_inst>>19) & 1;
if (cur_inst & (1<<14)) {
retour = dsp_calc_ea(ea_mode, addr_name);
} else {
sprintf(addr_name,"$%04x", ea_mode);
retour = 0;
}
if (memspace) {
/* Y: */
if (cur_inst & (1<<15)) {
/* Write D */
if (retour) {
sprintf(parallelmove_name, "#%s,%s", addr_name, registers_name[value]);
} else {
sprintf(parallelmove_name, "y:%s,%s", addr_name, registers_name[value]);
}
} else {
/* Read S */
sprintf(parallelmove_name, "%s,y:%s", registers_name[value], addr_name);
}
} else {
/* X: */
if (cur_inst & (1<<15)) {
/* Write D */
if (retour) {
sprintf(parallelmove_name, "#%s,%s", addr_name, registers_name[value]);
} else {
sprintf(parallelmove_name, "x:%s,%s", addr_name, registers_name[value]);
}
} else {
/* Read S */
sprintf(parallelmove_name, "%s,x:%s", registers_name[value], addr_name);
}
}
}
static void dsp_pm_8(void)
{
char addr1_name[16], addr2_name[16];
Uint32 ea_mode1, ea_mode2, numreg1, numreg2;
/*
1wmm eeff WrrM MRRR x:ea,D1 y:ea,D2
x:ea,D1 S2,y:ea
S1,x:ea y:ea,D2
S1,x:ea S2,y:ea
*/
numreg1 = DSP_REG_X0;
switch((cur_inst>>18) & BITMASK(2)) {
case 0: numreg1 = DSP_REG_X0; break;
case 1: numreg1 = DSP_REG_X1; break;
case 2: numreg1 = DSP_REG_A; break;
case 3: numreg1 = DSP_REG_B; break;
}
numreg2 = DSP_REG_Y0;
switch((cur_inst>>16) & BITMASK(2)) {
case 0: numreg2 = DSP_REG_Y0; break;
case 1: numreg2 = DSP_REG_Y1; break;
case 2: numreg2 = DSP_REG_A; break;
case 3: numreg2 = DSP_REG_B; break;
}
ea_mode1 = (cur_inst>>8) & BITMASK(5);
if ((ea_mode1>>3) == 0) {
ea_mode1 |= (1<<5);
}
ea_mode2 = (cur_inst>>13) & BITMASK(2);
ea_mode2 |= ((cur_inst>>20) & BITMASK(2))<<3;
if ((ea_mode1 & (1<<2))==0) {
ea_mode2 |= 1<<2;
}
if ((ea_mode2>>3) == 0) {
ea_mode2 |= (1<<5);
}
dsp_calc_ea(ea_mode1, addr1_name);
dsp_calc_ea(ea_mode2, addr2_name);
if (cur_inst & (1<<15)) {
if (cur_inst & (1<<22)) {
sprintf(parallelmove_name, "x:%s,%s y:%s,%s",
addr1_name,
registers_name[numreg1],
addr2_name,
registers_name[numreg2]
);
} else {
sprintf(parallelmove_name, "x:%s,%s %s,y:%s",
addr1_name,
registers_name[numreg1],
registers_name[numreg2],
addr2_name
);
}
} else {
if (cur_inst & (1<<22)) {
sprintf(parallelmove_name, "%s,x:%s y:%s,%s",
registers_name[numreg1],
addr1_name,
addr2_name,
registers_name[numreg2]
);
} else {
sprintf(parallelmove_name, "%s,x:%s %s,y:%s",
registers_name[numreg1],
addr1_name,
registers_name[numreg2],
addr2_name
);
}
}
}
This archive runs on limited infrastructure. Preserving old code on modern bandwidth. Automated agents are requested to crawl responsibly.