diff options
Diffstat (limited to 'z80.cpu')
| -rw-r--r-- | z80.cpu | 19 |
1 files changed, 18 insertions, 1 deletions
@@ -2127,11 +2127,18 @@ ed 10111000 lddr z80_cpd_cpi local tmp 16 local tmp8 8 + local hf 8 arg change 16 z80_fetch_mod_hl change sub scratch1 a tmp8 - update_flags SZHXN1 + update_flags SZHN1 + + lsr chflags 3 hf + and 1 hf hf + + sub hf tmp8 tmp8 + update_flags X and 0x2 tmp8 tmp8 lsl tmp8 4 tmp8 @@ -2159,21 +2166,31 @@ ed 10110001 cpir z80_cpd_cpi 1 if pvflag + if zflag + + else + add 1 pc wz sub 2 pc pc cycles 5 end + end ed 10111001 cpdr z80_cpd_cpi -1 if pvflag + if zflag + + else + add 1 pc wz sub 2 pc pc cycles 5 end + end 00100111 daa local diff 8 |