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| author | Mike Pavone <pavone@retrodev.com> | 2013-05-08 23:44:49 -0700 |
|---|---|---|
| committer | Mike Pavone <pavone@retrodev.com> | 2013-05-08 23:44:49 -0700 |
| commit | 0330b2ddf9eb35c1f3e5080177e7a3ab1678462e (patch) | |
| tree | 98f1b48ef9a6a1442cf2ad963a693e03944b6b07 | |
| parent | 425d13d843f702871465815b33f3bc35dc338e1c (diff) | |
Complete flag behavior for Z80 BIT instruction
| -rw-r--r-- | z80_to_x86.c | 8 |
1 files changed, 8 insertions, 0 deletions
diff --git a/z80_to_x86.c b/z80_to_x86.c index bbd0288..bd17cb0 100644 --- a/z80_to_x86.c +++ b/z80_to_x86.c @@ -1160,6 +1160,14 @@ uint8_t * translate_z80inst(z80inst * inst, uint8_t * dst, z80_context * context } dst = bt_ir(dst, inst->immed, src_op.base, SZ_B); dst = setcc_rdisp8(dst, CC_NC, CONTEXT, zf_off(ZF_Z)); + dst = setcc_rdisp8(dst, CC_NC, CONTEXT, zf_off(ZF_PV)); + dst = mov_irdisp8(dst, 0, CONTEXT, zf_off(ZF_N), SZ_B); + if (inst->immed == 7) { + dst = cmp_ir(dst, 0, src_op.base, SZ_B); + dst = setcc_rdisp8(dst, CC_S, CONTEXT, zf_off(ZF_S)); + } else { + dst = mov_irdisp8(dst, 0, CONTEXT, zf_off(ZF_S), SZ_B); + } break; case Z80_SET: cycles = (inst->addr_mode == Z80_IX_DISPLACE || inst->addr_mode == Z80_IY_DISPLACE) ? 8 : 16; |