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emulator timing fixes, VDP DMA fixes, improved DAC audio

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This commit is contained in:
kub 2020-01-14 23:00:44 +01:00
parent b9bc876c9c
commit 43e1401008
10 changed files with 118 additions and 98 deletions
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2
cpu/cz80/cz80.c
View file

@ -288,6 +288,8 @@ Cz80_Exec_End:
#if CZ80_ENCRYPTED_ROM
CPU->OPBase = OPBase;
#endif
if (CPU->HaltState)
CPU->ICount = 0;
cycles -= CPU->ICount;
#if !CZ80_EMULATE_R_EXACTLY
zR = (zR + (cycles >> 2)) & 0x7f;

7
cpu/cz80/cz80_op.c
View file

@ -687,13 +687,14 @@ OP_CCF:
OP(0x76): // HALT
OP_HALT:
CPU->HaltState = 1;
CPU->ICount = 0;
// CPU->ICount = 0;
goto Cz80_Check_Interrupt;
OP(0xf3): // DI
OP_DI:
zIFF = 0;
RET(4)
USE_CYCLES(4)
goto Cz80_Exec_nocheck;
OP(0xfb): // EI
OP_EI:
@ -712,8 +713,6 @@ OP_EI:
if (CPU->IRQState)
{
afterEI = 1;
CPU->ExtraCycles += 1 - CPU->ICount;
CPU->ICount = 1;
}
}
else zIFF2 = (1 << 2);