From dc02f2fc33554abdb90e1ffecccc57a421bd173c Mon Sep 17 00:00:00 2001 From: Charles MacDonald Date: Mon, 14 Jan 2008 18:27:50 +0000 Subject: [PATCH] Fixed HuC6280 low-speed mode so it uses 4 cycles instead of 3. --- src/emu/cpu/h6280/h6280.c | 4 ++-- src/emu/cpu/h6280/h6280ops.h | 2 +- 2 files changed, 3 insertions(+), 3 deletions(-) diff --git a/src/emu/cpu/h6280/h6280.c b/src/emu/cpu/h6280/h6280.c index fcd9f754f96..9c5ced68236 100644 --- a/src/emu/cpu/h6280/h6280.c +++ b/src/emu/cpu/h6280/h6280.c @@ -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; diff --git a/src/emu/cpu/h6280/h6280ops.h b/src/emu/cpu/h6280/h6280ops.h index 602ae584737..b76989376f3 100644 --- a/src/emu/cpu/h6280/h6280ops.h +++ b/src/emu/cpu/h6280/h6280ops.h @@ -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;