diff options
| author | Mike Pavone <pavone@retrodev.com> | 2013-05-02 22:39:39 -0700 |
|---|---|---|
| committer | Mike Pavone <pavone@retrodev.com> | 2013-05-02 22:39:39 -0700 |
| commit | b2d03ba6ed9fcfbb8197924531ad6d8d6942ba58 (patch) | |
| tree | 9a1a4d3ff9e94195399ead13e8369542cec9e49d /z80_to_x86.c | |
| parent | 3cf828483b8d9a166d801d0d4950e651caf632c3 (diff) | |
Implement CPL and NEG (untested)
Diffstat (limited to 'z80_to_x86.c')
| -rw-r--r-- | z80_to_x86.c | 18 |
1 files changed, 16 insertions, 2 deletions
diff --git a/z80_to_x86.c b/z80_to_x86.c index f72124f..40027fe 100644 --- a/z80_to_x86.c +++ b/z80_to_x86.c @@ -851,9 +851,23 @@ uint8_t * translate_z80inst(z80inst * inst, uint8_t * dst, z80_context * context dst = z80_save_reg(dst, inst, opts); dst = z80_save_ea(dst, inst, opts); break; - /*case Z80_DAA: + //case Z80_DAA: case Z80_CPL: - case Z80_NEG:*/ + dst = zcycles(dst, 4); + dst = not_r(dst, opts->regs[Z80_A], SZ_B); + //TODO: Implement half-carry flag + dst = mov_irdisp8(dst, 1, CONTEXT, zf_off(ZF_N), SZ_B); + break; + case Z80_NEG: + dst = zcycles(dst, 8); + dst = neg_r(dst, opts->regs[Z80_A], SZ_B); + //TODO: Implement half-carry flag + dst = setcc_rdisp8(dst, CC_Z, CONTEXT, zf_off(ZF_Z)); + dst = setcc_rdisp8(dst, CC_S, CONTEXT, zf_off(ZF_S)); + dst = setcc_rdisp8(dst, CC_C, CONTEXT, zf_off(ZF_C)); + dst = setcc_rdisp8(dst, CC_O, CONTEXT, zf_off(ZF_PV)); + dst = mov_irdisp8(dst, 1, CONTEXT, zf_off(ZF_N), SZ_B); + break; case Z80_CCF: dst = zcycles(dst, 4); dst = xor_irdisp8(dst, 1, CONTEXT, zf_off(ZF_C), SZ_B); |