diff options
| author | Michael Pavone <pavone@retrodev.com> | 2016-07-29 22:06:45 -0700 |
|---|---|---|
| committer | Michael Pavone <pavone@retrodev.com> | 2016-07-29 22:06:45 -0700 |
| commit | 1b7a3b5c6f2c65aa9618af2d5c4c4e197ef85a09 (patch) | |
| tree | 9690fdbeaf2050bc05732d7aa99088234376915c /z80_to_x86.c | |
| parent | d115f42303163286a94e7ddba9d3e4706ce400c2 (diff) | |
Implement undocumented flag bits for shift instructions
Diffstat (limited to 'z80_to_x86.c')
| -rw-r--r-- | z80_to_x86.c | 9 |
1 files changed, 9 insertions, 0 deletions
diff --git a/z80_to_x86.c b/z80_to_x86.c index 69b7eff..997ca2c 100644 --- a/z80_to_x86.c +++ b/z80_to_x86.c @@ -1673,8 +1673,11 @@ void translate_z80inst(z80inst * inst, z80_context * context, uint16_t address, mov_irdisp(code, 0, opts->gen.context_reg, zf_off(ZF_N), SZ_B); mov_irdisp(code, 0, opts->gen.context_reg, zf_off(ZF_H), SZ_B); if (dst_op.mode == MODE_REG_DIRECT) { + mov_rrdisp(code, dst_op.base, opts->gen.context_reg, zf_off(ZF_XY), SZ_B); cmp_ir(code, 0, dst_op.base, SZ_B); } else { + mov_rdispr(code, dst_op.base, dst_op.disp, opts->gen.scratch1, SZ_B); + mov_rrdisp(code, opts->gen.scratch1, opts->gen.context_reg, zf_off(ZF_XY), SZ_B); cmp_irdisp(code, 0, dst_op.base, dst_op.disp, SZ_B); } setcc_rdisp(code, CC_P, opts->gen.context_reg, zf_off(ZF_PV)); @@ -1716,8 +1719,11 @@ void translate_z80inst(z80inst * inst, z80_context * context, uint16_t address, mov_irdisp(code, 0, opts->gen.context_reg, zf_off(ZF_N), SZ_B); mov_irdisp(code, 0, opts->gen.context_reg, zf_off(ZF_H), SZ_B); if (dst_op.mode == MODE_REG_DIRECT) { + mov_rrdisp(code, dst_op.base, opts->gen.context_reg, zf_off(ZF_XY), SZ_B); cmp_ir(code, 0, dst_op.base, SZ_B); } else { + mov_rdispr(code, dst_op.base, dst_op.disp, opts->gen.scratch1, SZ_B); + mov_rrdisp(code, opts->gen.scratch1, opts->gen.context_reg, zf_off(ZF_XY), SZ_B); cmp_irdisp(code, 0, dst_op.base, dst_op.disp, SZ_B); } setcc_rdisp(code, CC_P, opts->gen.context_reg, zf_off(ZF_PV)); @@ -1759,8 +1765,11 @@ void translate_z80inst(z80inst * inst, z80_context * context, uint16_t address, mov_irdisp(code, 0, opts->gen.context_reg, zf_off(ZF_N), SZ_B); mov_irdisp(code, 0, opts->gen.context_reg, zf_off(ZF_H), SZ_B); if (dst_op.mode == MODE_REG_DIRECT) { + mov_rrdisp(code, dst_op.base, opts->gen.context_reg, zf_off(ZF_XY), SZ_B); cmp_ir(code, 0, dst_op.base, SZ_B); } else { + mov_rdispr(code, dst_op.base, dst_op.disp, opts->gen.scratch1, SZ_B); + mov_rrdisp(code, opts->gen.scratch1, opts->gen.context_reg, zf_off(ZF_XY), SZ_B); cmp_irdisp(code, 0, dst_op.base, dst_op.disp, SZ_B); } setcc_rdisp(code, CC_P, opts->gen.context_reg, zf_off(ZF_PV)); |