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Diffstat (limited to 'm68k_to_x86.c')
-rw-r--r--m68k_to_x86.c114
1 files changed, 108 insertions, 6 deletions
diff --git a/m68k_to_x86.c b/m68k_to_x86.c
index 02ecd81..7c91e66 100644
--- a/m68k_to_x86.c
+++ b/m68k_to_x86.c
@@ -689,21 +689,47 @@ uint8_t * translate_m68k(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
dst = setcc_r(dst, CC_O, FLAG_V);
dst = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
dst = check_cycles(dst);
+ dst = m68k_save_result(inst, dst, opts);
break;
case M68K_ADDX:
+ break;
case M68K_AND:
+ dst = cycles(dst, BUS);
+ if (src_op.mode == MODE_REG_DIRECT) {
+ if (dst_op.mode == MODE_REG_DIRECT) {
+ dst = and_rr(dst, src_op.base, dst_op.base, inst->extra.size);
+ } else {
+ dst = and_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
+ }
+ } else if (src_op.mode == MODE_REG_DISPLACE8) {
+ dst = and_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, inst->extra.size);
+ } else {
+ if (dst_op.mode == MODE_REG_DIRECT) {
+ dst = and_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
+ } else {
+ dst = and_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
+ }
+ }
+ dst = mov_ir(dst, 0, FLAG_C, SZ_B);
+ dst = setcc_r(dst, CC_Z, FLAG_Z);
+ dst = setcc_r(dst, CC_S, FLAG_N);
+ dst = mov_ir(dst, 0, FLAG_V, SZ_B);
+ dst = check_cycles(dst);
+ dst = m68k_save_result(inst, dst, opts);
+ break;
case M68K_ANDI_CCR:
case M68K_ANDI_SR:
case M68K_ASL:
+ case M68K_LSL:
case M68K_ASR:
- case M68K_BCC:
+ case M68K_LSR:
case M68K_BCHG:
case M68K_BCLR:
case M68K_BSET:
- case M68K_BSR:
case M68K_BTST:
case M68K_CHK:
case M68K_CLR:
+ break;
case M68K_CMP:
dst = cycles(dst, BUS);
if (src_op.mode == MODE_REG_DIRECT) {
@@ -727,10 +753,33 @@ uint8_t * translate_m68k(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
dst = setcc_r(dst, CC_O, FLAG_V);
dst = check_cycles(dst);
break;
- case M68K_DBCC:
case M68K_DIVS:
case M68K_DIVU:
+ break;
case M68K_EOR:
+ dst = cycles(dst, BUS);
+ if (src_op.mode == MODE_REG_DIRECT) {
+ if (dst_op.mode == MODE_REG_DIRECT) {
+ dst = xor_rr(dst, src_op.base, dst_op.base, inst->extra.size);
+ } else {
+ dst = xor_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
+ }
+ } else if (src_op.mode == MODE_REG_DISPLACE8) {
+ dst = xor_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, inst->extra.size);
+ } else {
+ if (dst_op.mode == MODE_REG_DIRECT) {
+ dst = xor_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
+ } else {
+ dst = xor_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
+ }
+ }
+ dst = mov_ir(dst, 0, FLAG_C, SZ_B);
+ dst = setcc_r(dst, CC_Z, FLAG_Z);
+ dst = setcc_r(dst, CC_S, FLAG_N);
+ dst = mov_ir(dst, 0, FLAG_V, SZ_B);
+ dst = check_cycles(dst);
+ dst = m68k_save_result(inst, dst, opts);
+ break;
case M68K_EORI_CCR:
case M68K_EORI_SR:
case M68K_EXG:
@@ -758,6 +807,7 @@ uint8_t * translate_m68k(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
dst = check_cycles(dst);
break;
case M68K_EXT:
+ break;
case M68K_ILLEGAL:
dst = call(dst, (uint8_t *)m68k_save_context);
dst = mov_rr(dst, CONTEXT, RDI, SZ_Q);
@@ -767,8 +817,6 @@ uint8_t * translate_m68k(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
case M68K_JSR:
case M68K_LEA:
case M68K_LINK:
- case M68K_LSL:
- case M68K_LSR:
case M68K_MOVE_CCR:
case M68K_MOVE_FROM_SR:
case M68K_MOVE_SR:
@@ -780,9 +828,37 @@ uint8_t * translate_m68k(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
case M68K_NBCD:
case M68K_NEG:
case M68K_NEGX:
+ break;
case M68K_NOP:
+ dst = cycles(dst, BUS);
+ dst = check_cycles(dst);
+ break;
case M68K_NOT:
+ break;
case M68K_OR:
+ dst = cycles(dst, BUS);
+ if (src_op.mode == MODE_REG_DIRECT) {
+ if (dst_op.mode == MODE_REG_DIRECT) {
+ dst = or_rr(dst, src_op.base, dst_op.base, inst->extra.size);
+ } else {
+ dst = or_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
+ }
+ } else if (src_op.mode == MODE_REG_DISPLACE8) {
+ dst = or_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, inst->extra.size);
+ } else {
+ if (dst_op.mode == MODE_REG_DIRECT) {
+ dst = or_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
+ } else {
+ dst = or_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
+ }
+ }
+ dst = mov_ir(dst, 0, FLAG_C, SZ_B);
+ dst = setcc_r(dst, CC_Z, FLAG_Z);
+ dst = setcc_r(dst, CC_S, FLAG_N);
+ dst = mov_ir(dst, 0, FLAG_V, SZ_B);
+ dst = check_cycles(dst);
+ dst = m68k_save_result(inst, dst, opts);
+ break;
case M68K_ORI_CCR:
case M68K_ORI_SR:
case M68K_PEA:
@@ -793,10 +869,10 @@ uint8_t * translate_m68k(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
case M68K_ROXR:
case M68K_RTE:
case M68K_RTR:
- case M68K_RTS:
case M68K_SBCD:
case M68K_SCC:
case M68K_STOP:
+ break;
case M68K_SUB:
dst = cycles(dst, BUS);
if (src_op.mode == MODE_REG_DIRECT) {
@@ -820,13 +896,39 @@ uint8_t * translate_m68k(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
dst = setcc_r(dst, CC_O, FLAG_V);
dst = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
dst = check_cycles(dst);
+ dst = m68k_save_result(inst, dst, opts);
break;
case M68K_SUBX:
+ break;
case M68K_SWAP:
+ dst = cycles(dst, BUS);
+ if (src_op.mode == MODE_REG_DIRECT) {
+ dst = rol_ir(dst, 16, src_op.base, inst->extra.size);
+ } else{
+ dst = rol_irdisp8(dst, 16, src_op.base, src_op.disp, inst->extra.size);
+ }
+ dst = mov_ir(dst, 0, FLAG_C, SZ_B);
+ dst = setcc_r(dst, CC_Z, FLAG_Z);
+ dst = setcc_r(dst, CC_S, FLAG_N);
+ dst = mov_ir(dst, 0, FLAG_V, SZ_B);
+ dst = check_cycles(dst);
+ break;
case M68K_TAS:
case M68K_TRAP:
case M68K_TRAPV:
case M68K_TST:
+ dst = cycles(dst, BUS);
+ if (src_op.mode == MODE_REG_DIRECT) {
+ dst = cmp_ir(dst, 0, src_op.base, inst->extra.size);
+ } else { //M68000 doesn't support immedate operand for tst, so this must be MODE_REG_DISPLACE8
+ dst = cmp_irdisp8(dst, 0, src_op.base, src_op.disp, inst->extra.size);
+ }
+ dst = setcc_r(dst, CC_C, FLAG_C);
+ dst = setcc_r(dst, CC_Z, FLAG_Z);
+ dst = setcc_r(dst, CC_S, FLAG_N);
+ dst = setcc_r(dst, CC_O, FLAG_V);
+ dst = check_cycles(dst);
+ break;
case M68K_UNLK:
case M68K_INVALID:
break;
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-19 17:50:42 +0000