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Witch: Changed both CPU clocks to 3 MHz, Both YM2203 clocks

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to 3 MHz, and confirmed the ES8712 clock (coming from pin 14
of M5205) in 8 MHz. All measured and traced from the PCB.
Implemented all clocks through #define. [Roberto Fresca, ANY]
This commit is contained in:
Roberto Fresca 2014-02-26 22:47:24 +00:00
parent 83b996f577
commit 66206bf112
1 changed files with 12 additions and 6 deletions
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18
src/mame/drivers/witch.c
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@ -218,6 +218,12 @@ TODO :
- Hook up the OKI M5202
*/
#define MAIN_CLOCK XTAL_12MHz
#define CPU_CLOCK MAIN_CLOCK / 4
#define YM2203_CLOCK MAIN_CLOCK / 4
#define ES8712_CLOCK 8000 // 8Khz, it's the only clock for sure (pin13) it come from pin14 of M5205.
#include "emu.h"
#include "cpu/z80/z80.h"
#include "sound/es8712.h"
@ -297,7 +303,7 @@ TILE_GET_INFO_MEMBER(witch_state::get_gfx0b_tile_info)
SET_TILE_INFO_MEMBER(m_gfxdecode,
1,
code,//tiles beyond 0x7ff only for sprites?
code, //tiles beyond 0x7ff only for sprites?
color & 0x0f,
0);
}
@ -829,12 +835,12 @@ INTERRUPT_GEN_MEMBER(witch_state::witch_sub_interrupt)
static MACHINE_CONFIG_START( witch, witch_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", Z80, XTAL_12MHz / 3) /* 4MHz?? */
MCFG_CPU_ADD("maincpu", Z80, CPU_CLOCK) /* 3 MHz */
MCFG_CPU_PROGRAM_MAP(map_main)
MCFG_CPU_VBLANK_INT_DRIVER("screen", witch_state, witch_main_interrupt)
/* 2nd z80 */
MCFG_CPU_ADD("sub", Z80, XTAL_12MHz / 3) /* 4MHz?? */
MCFG_CPU_ADD("sub", Z80, CPU_CLOCK) /* 3 MHz */
MCFG_CPU_PROGRAM_MAP(map_sub)
MCFG_CPU_VBLANK_INT_DRIVER("screen", witch_state, witch_sub_interrupt)
@ -855,14 +861,14 @@ static MACHINE_CONFIG_START( witch, witch_state )
/* sound hardware */
MCFG_SPEAKER_STANDARD_MONO("mono")
MCFG_ES8712_ADD("essnd", 8000) /* ?? */
MCFG_ES8712_ADD("essnd", ES8712_CLOCK) /* 8Khz, it's the only clock for sure (pin13) it comes from pin14 of M5205 */
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.0)
MCFG_SOUND_ADD("ym1", YM2203, XTAL_12MHz / 8) /* 1.5MHz?? */
MCFG_SOUND_ADD("ym1", YM2203, YM2203_CLOCK) /* 3 MHz */
MCFG_YM2203_AY8910_INTF(&ay8910_config_1)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.5)
MCFG_SOUND_ADD("ym2", YM2203, XTAL_12MHz / 8) /* 1.5MHz?? */
MCFG_SOUND_ADD("ym2", YM2203, YM2203_CLOCK) /* 3 MHz */
MCFG_YM2203_AY8910_INTF(&ay8910_config_2)
MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.5)