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Fixed HuC6280 low-speed mode so it uses 4 cycles instead of 3.

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This commit is contained in:
Charles MacDonald 2008-01-14 18:27:50 +00:00
parent 6081565013
commit dc02f2fc33
2 changed files with 3 additions and 3 deletions
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4
src/emu/cpu/h6280/h6280.c
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@ -130,7 +130,7 @@ typedef struct
UINT8 irq_mask; /* interrupt enable/disable */
UINT8 timer_status; /* timer status */
UINT8 timer_ack; /* timer acknowledge */
UINT8 clocks_per_cycle; /* 3 = low speed mode, 1 = high speed mode */
UINT8 clocks_per_cycle; /* 4 = low speed mode, 1 = high speed mode */
INT32 timer_value; /* timer interrupt */
INT32 timer_load; /* reload value */
UINT8 nmi_state;
@ -209,7 +209,7 @@ static void h6280_reset(void)
CHANGE_PC;
/* CPU starts in low speed mode */
h6280.clocks_per_cycle = 3;
h6280.clocks_per_cycle = 4;
/* timer off by default */
h6280.timer_status=0;

2
src/emu/cpu/h6280/h6280ops.h
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@ -1375,5 +1375,5 @@ INLINE void WRMEM(offs_t addr, UINT8 data) {
* CSL Set CPU in low speed mode
***************************************************************/
#define CSL \
h6280.clocks_per_cycle = 3;
h6280.clocks_per_cycle = 4;