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fix H flag on DCR and DAD

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This commit is contained in:
Michaël Banaan Ananas 2012-10-15 12:32:28 +00:00
parent a02ae653e0
commit 22596c93f4
1 changed files with 4 additions and 6 deletions
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10
src/emu/cpu/i8085/i8085cpu.h
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@ -68,7 +68,7 @@
/* increase / decrease */
#define M_INR(R) {UINT8 hc = ((R & 0x0f) == 0x0f) ? HF : 0; ++R; cpustate->AF.b.l= (cpustate->AF.b.l & CF ) | ZSP[R] | hc; }
#define M_DCR(R) {UINT8 hc = ((R & 0x0f) == 0x00) ? HF : 0; --R; cpustate->AF.b.l= (cpustate->AF.b.l & CF ) | ZSP[R] | hc | VF; }
#define M_DCR(R) {UINT8 hc = ((R & 0x0f) != 0x00) ? HF : 0; --R; cpustate->AF.b.l= (cpustate->AF.b.l & CF ) | ZSP[R] | hc | VF; }
/* arithmetic */
#define M_ADD(R) { \
@ -100,11 +100,9 @@
cpustate->AF.b.l=ZSP[q&255]|((q>>8)&CF)|((cpustate->AF.b.h^q^R)&HF)|VF; \
}
#define M_DAD(R) { \
int q = cpustate->HL.d + cpustate->R.d; \
cpustate->AF.b.l = ( cpustate->AF.b.l & ~(HF+CF) ) | \
( ((cpustate->HL.d^q^cpustate->R.d) >> 8) & HF ) | \
( (q>>16) & CF ); \
#define M_DAD(R) { \
int q = cpustate->HL.d + cpustate->R.d; \
cpustate->AF.b.l = (cpustate->AF.b.l & ~CF) | (q>>16 & CF ); \
cpustate->HL.w.l = q; \
}