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version 1.2, 2004/08/08 14:00:56
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version 1.3, 2004/08/11 12:08:17
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Line 9
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Line 9
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| |
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| #define Z80_COUNT(clock) \ |
#define Z80_COUNT(clock) \ |
| do { \ |
do { \ |
| Z80_ICOUNT += (clock); \ |
CPU_REMCLOCK -= (clock); \ |
| } while (/*CONSTCOND*/ 0) |
} while (/*CONSTCOND*/ 0) |
| |
|
| #define Z80IRQCHECKTERM \ |
#define Z80IRQCHECKTERM \ |
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Line 566
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Line 566
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| } |
} |
| |
|
| #define MCR_EI { \ |
#define MCR_EI { \ |
| UINT op; \ |
REG8 iff; \ |
| Z80_IFF &= ~(1 << IFF_IFLAG); \ |
SINT32 rem; \ |
| op = mem_read8(R_Z80PC); \ |
iff = Z80_IFF; \ |
| if (op != 0xfb) { \ |
if (iff & (1 << IFF_IFLAG)) { \ |
| R_Z80PC++; \ |
Z80_IFF = (UINT8)(iff & (~(1 << IFF_IFLAG))); \ |
| R_Z80R++; \ |
rem = CPU_REMCLOCK - 1; \ |
| Z80_COUNT(cycles_main[op]); \ |
if ((rem < 0) || \ |
| z80c_mainop[op](); \ |
((!(iff & ((1 << IFF_IRQ) | (1 << IFF_NMI)))) && \ |
| |
(CPU_REQIRQ != 0))) { \ |
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CPU_BASECLOCK -= rem; \ |
| |
CPU_REMCLOCK = 1; \ |
| |
} \ |
| } \ |
} \ |
| } |
} |
| |
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