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josvolly: "AA 007" chip is really NEC D8255A for reading input ports [CAPS0ff, Vas Crabb]

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This commit is contained in:
Vas Crabb 2016-12-30 23:46:58 +11:00
parent 02a7e0007e
commit 11a44f2c75
1 changed files with 12 additions and 6 deletions
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18
src/mame/drivers/gsword.cpp
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@ -144,10 +144,13 @@ reg: 0->1 (main->2nd) / : (1->0) 2nd->main :
******************************************/
#include "emu.h"
#include "cpu/z80/z80.h"
#include "machine/tait8741.h"
#include "includes/gsword.h"
#include "cpu/z80/z80.h"
#include "machine/i8255.h"
#include "machine/tait8741.h"
#if 0
int gsword_state::coins_in(void)
@ -371,10 +374,8 @@ static ADDRESS_MAP_START( josvolly_cpu2_map, AS_PROGRAM, 8, gsword_state )
AM_RANGE(0x0000, 0x3fff) AM_ROM
AM_RANGE(0x4000, 0x43ff) AM_RAM AM_SHARE("cpu2_ram")
/* 8000 to 8003 looks MCU */
AM_RANGE(0x8000, 0x8000) AM_READ_PORT("IN1") // 1PL
AM_RANGE(0x8001, 0x8001) AM_READ_PORT("IN2") // 2PL / ACK
AM_RANGE(0x8002, 0x8002) AM_READ_PORT("IN0") // START
/* NEC D8255A with silkscreen removed and replaced with "AA 007" */
AM_RANGE(0x8000, 0x8003) AM_DEVREADWRITE("josvolly_aa_007", i8255_device, read, write)
// AM_RANGE(0x6000, 0x6000) AM_WRITE(adpcm_soundcommand_w)
AM_RANGE(0xA000, 0xA001) AM_DEVREADWRITE("josvolly_8741", josvolly8741_4pack_device, read_1, write_1)
@ -695,6 +696,11 @@ static MACHINE_CONFIG_START( josvolly, gsword_state )
MCFG_CPU_IO_MAP(josvolly_cpu2_io_map)
MCFG_CPU_VBLANK_INT_DRIVER("screen", gsword_state, irq0_line_hold)
MCFG_DEVICE_ADD("josvolly_aa_007", I8255, 0)
MCFG_I8255_IN_PORTA_CB(IOPORT("IN1")) // 1PL
MCFG_I8255_IN_PORTB_CB(IOPORT("IN2")) // 2PL / ACK
MCFG_I8255_IN_PORTC_CB(IOPORT("IN0")) // START
MCFG_JOSVOLLY8741_ADD("josvolly_8741")
MCFG_JOSVOLLY8741_CONNECT(1,0,0,0)
MCFG_JOSVOLLY8741_PORT_HANDLERS(IOPORT("DSW1"),IOPORT("DSW2"),IOPORT("DSW1"),IOPORT("DSW2"))