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Diffstat (limited to 'm68k_to_x86.c')
-rw-r--r--m68k_to_x86.c157
1 files changed, 151 insertions, 6 deletions
diff --git a/m68k_to_x86.c b/m68k_to_x86.c
index bd112e4..3699fb9 100644
--- a/m68k_to_x86.c
+++ b/m68k_to_x86.c
@@ -2172,8 +2172,31 @@ uint8_t * translate_m68k(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
dst = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
dst = m68k_save_result(inst, dst, opts);
break;
- //case M68K_ADDX:
- // break;
+ case M68K_ADDX:
+ dst = cycles(dst, BUS);
+ dst = bt_irdisp8(dst, 0, CONTEXT, 0, SZ_B);
+ if (src_op.mode == MODE_REG_DIRECT) {
+ if (dst_op.mode == MODE_REG_DIRECT) {
+ dst = adc_rr(dst, src_op.base, dst_op.base, inst->extra.size);
+ } else {
+ dst = adc_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
+ }
+ } else if (src_op.mode == MODE_REG_DISPLACE8) {
+ dst = adc_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, inst->extra.size);
+ } else {
+ if (dst_op.mode == MODE_REG_DIRECT) {
+ dst = adc_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
+ } else {
+ dst = adc_irdisp8(dst, src_op.disp, dst_op.base, dst_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 = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
+ dst = m68k_save_result(inst, dst, opts);
+ break;
case M68K_AND:
dst = cycles(dst, BUS);
if (src_op.mode == MODE_REG_DIRECT) {
@@ -2636,8 +2659,107 @@ uint8_t * translate_m68k(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
dst = setcc_r(dst, CC_S, FLAG_N);
}
break;
- /*case M68K_ROXL:
- case M68K_ROXR:*/
+ case M68K_ROXL:
+ case M68K_ROXR:
+ dst = mov_ir(dst, 0, FLAG_V, SZ_B);
+ if (inst->src.addr_mode == MODE_UNUSED) {
+ dst = cycles(dst, BUS);
+ //Memory rotate
+ dst = bt_irdisp8(dst, 0, CONTEXT, 0, SZ_B);
+ if (inst->op == M68K_ROXL) {
+ dst = rol_ir(dst, 1, dst_op.base, inst->extra.size);
+ } else {
+ dst = ror_ir(dst, 1, dst_op.base, inst->extra.size);
+ }
+ dst = setcc_r(dst, CC_C, FLAG_C);
+ dst = cmp_ir(dst, 0, dst_op.base, inst->extra.size);
+ dst = setcc_r(dst, CC_Z, FLAG_Z);
+ dst = setcc_r(dst, CC_S, FLAG_N);
+ dst = m68k_save_result(inst, dst, opts);
+ } else {
+ if (src_op.mode == MODE_IMMED) {
+ dst = cycles(dst, (inst->extra.size == OPSIZE_LONG ? 8 : 6) + src_op.disp*2);
+ dst = bt_irdisp8(dst, 0, CONTEXT, 0, SZ_B);
+ if (dst_op.mode == MODE_REG_DIRECT) {
+ if (inst->op == M68K_ROXL) {
+ dst = rol_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
+ } else {
+ dst = ror_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
+ }
+ } else {
+ if (inst->op == M68K_ROXL) {
+ dst = rol_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
+ } else {
+ dst = ror_irdisp8(dst, src_op.disp, dst_op.base, dst_op.disp, inst->extra.size);
+ }
+ }
+ dst = setcc_r(dst, CC_C, FLAG_C);
+ } else {
+ if (src_op.mode == MODE_REG_DIRECT) {
+ if (src_op.base != SCRATCH1) {
+ dst = mov_rr(dst, src_op.base, SCRATCH1, SZ_B);
+ }
+ } else {
+ dst = mov_rdisp8r(dst, src_op.base, src_op.disp, SCRATCH1, SZ_B);
+ }
+ dst = and_ir(dst, 63, SCRATCH1, SZ_D);
+ zero_off = dst+1;
+ dst = jcc(dst, CC_NZ, dst+2);
+ dst = add_rr(dst, SCRATCH1, CYCLES, SZ_D);
+ dst = add_rr(dst, SCRATCH1, CYCLES, SZ_D);
+ dst = cmp_ir(dst, 32, SCRATCH1, SZ_B);
+ norm_off = dst+1;
+ dst = jcc(dst, CC_L, dst+2);
+ dst = bt_irdisp8(dst, 0, CONTEXT, 0, SZ_B);
+ if (dst_op.mode == MODE_REG_DIRECT) {
+ if (inst->op == M68K_ROXL) {
+ dst = rol_ir(dst, 31, dst_op.base, inst->extra.size);
+ dst = rol_ir(dst, 1, dst_op.base, inst->extra.size);
+ } else {
+ dst = ror_ir(dst, 31, dst_op.base, inst->extra.size);
+ dst = ror_ir(dst, 1, dst_op.base, inst->extra.size);
+ }
+ } else {
+ if (inst->op == M68K_ROXL) {
+ dst = rol_irdisp8(dst, 31, dst_op.base, dst_op.disp, inst->extra.size);
+ dst = rol_irdisp8(dst, 1, dst_op.base, dst_op.disp, inst->extra.size);
+ } else {
+ dst = ror_irdisp8(dst, 31, dst_op.base, dst_op.disp, inst->extra.size);
+ dst = ror_irdisp8(dst, 1, dst_op.base, dst_op.disp, inst->extra.size);
+ }
+ }
+ dst = sub_ir(dst, 32, SCRATCH1, SZ_B);
+ *norm_off = dst - (norm_off+1);
+ dst = bt_irdisp8(dst, 0, CONTEXT, 0, SZ_B);
+ if (dst_op.mode == MODE_REG_DIRECT) {
+ if (inst->op == M68K_ROXL) {
+ dst = rol_clr(dst, dst_op.base, inst->extra.size);
+ } else {
+ dst = ror_clr(dst, dst_op.base, inst->extra.size);
+ }
+ } else {
+ if (inst->op == M68K_ROXL) {
+ dst = rol_clrdisp8(dst, dst_op.base, dst_op.disp, inst->extra.size);
+ } else {
+ dst = ror_clrdisp8(dst, dst_op.base, dst_op.disp, inst->extra.size);
+ }
+ }
+ dst = setcc_r(dst, CC_C, FLAG_C);
+ end_off = dst + 1;
+ dst = jmp(dst, dst+2);
+ *zero_off = dst - (zero_off+1);
+ dst = mov_ir(dst, 0, FLAG_C, SZ_B);
+ *end_off = dst - (end_off+1);
+ }
+ if (dst_op.mode == MODE_REG_DIRECT) {
+ dst = cmp_ir(dst, 0, dst_op.base, inst->extra.size);
+ } else {
+ dst = cmp_irdisp8(dst, 0, dst_op.base, dst_op.disp, inst->extra.size);
+ }
+ dst = setcc_r(dst, CC_Z, FLAG_Z);
+ dst = setcc_r(dst, CC_S, FLAG_N);
+ }
+ break;
case M68K_RTE:
dst = mov_rr(dst, opts->aregs[7], SCRATCH1, SZ_D);
dst = call(dst, (uint8_t *)m68k_read_long_scratch1);
@@ -2686,8 +2808,31 @@ uint8_t * translate_m68k(uint8_t * dst, m68kinst * inst, x86_68k_options * opts)
dst = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
dst = m68k_save_result(inst, dst, opts);
break;
- //case M68K_SUBX:
- // break;
+ case M68K_SUBX:
+ dst = cycles(dst, BUS);
+ dst = bt_irdisp8(dst, 0, CONTEXT, 0, SZ_B);
+ if (src_op.mode == MODE_REG_DIRECT) {
+ if (dst_op.mode == MODE_REG_DIRECT) {
+ dst = sbb_rr(dst, src_op.base, dst_op.base, inst->extra.size);
+ } else {
+ dst = sbb_rrdisp8(dst, src_op.base, dst_op.base, dst_op.disp, inst->extra.size);
+ }
+ } else if (src_op.mode == MODE_REG_DISPLACE8) {
+ dst = sbb_rdisp8r(dst, src_op.base, src_op.disp, dst_op.base, inst->extra.size);
+ } else {
+ if (dst_op.mode == MODE_REG_DIRECT) {
+ dst = sbb_ir(dst, src_op.disp, dst_op.base, inst->extra.size);
+ } else {
+ dst = sbb_irdisp8(dst, src_op.disp, dst_op.base, dst_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 = mov_rrind(dst, FLAG_C, CONTEXT, SZ_B);
+ dst = m68k_save_result(inst, dst, opts);
+ break;
case M68K_SWAP:
dst = cycles(dst, BUS);
if (src_op.mode == MODE_REG_DIRECT) {
generated by cgit v1.2.3 (git 2.25.1) at 2025-06-19 22:15:18 +0000