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guab: Add RS232 port, update notes

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This commit is contained in:
Dirk Best 2018-03-24 18:54:20 +01:00
parent 2e40673d6d
commit e02583d79b
1 changed files with 36 additions and 6 deletions
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42
src/mame/drivers/guab.cpp
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@ -19,13 +19,13 @@
Known issues:
* Neither game registers coins and I can't find where the credit
count gets updated in the code. Each game requires a unique
security PAL - maybe this is related? I'm poking the coin values
directly into RAM for now.
* Game hangs when you try to 'collect' cash
count gets updated in the code. Each game requires a unique
security PAL - maybe this is related? I'm poking the coin values
directly into RAM for now.
* Game hangs when nothing is connected to the first ACIA when
you try to 'collect' cash
* Verify WD FDC type
* Are IRQs 1 or 2 connected to something?
* Hook up ACIA properly (IRQ 4)
* Hook up ACIA properly
* Hook up watchdog NMI
* Verify clocks
* Use real video timings
@ -34,15 +34,23 @@
Notes:
* Toggle both 'Back door' and 'Key switch' to enter test mode
* Video hardware seems to match JPM System 5
* IRQ 1 inits the PPIs, IRQ 2 does nothing
* Values send to the first ACIA serial port:
- Game ID: "JPMNA305v.." (guab) or "..JPMNN101}" (tenup)
- Coin 1-4: 1-4
- Game start: /
- Collect: D
***************************************************************************/
#include "emu.h"
#include "cpu/m68000/m68000.h"
#include "bus/rs232/rs232.h"
#include "formats/guab_dsk.h"
#include "machine/6840ptm.h"
#include "machine/6850acia.h"
#include "machine/clock.h"
#include "machine/i8255.h"
#include "machine/wd_fdc.h"
#include "sound/sn76496.h"
@ -416,6 +424,15 @@ WRITE8_MEMBER( guab_state::output6_w )
output().set_value("led_47", BIT(data, 7));
}
static DEVICE_INPUT_DEFAULTS_START( acia_1_rs232_defaults )
DEVICE_INPUT_DEFAULTS("RS232_TXBAUD", 0xff, RS232_BAUD_9600)
DEVICE_INPUT_DEFAULTS("RS232_RXBAUD", 0xff, RS232_BAUD_9600)
DEVICE_INPUT_DEFAULTS("RS232_STARTBITS", 0xff, RS232_STARTBITS_1)
DEVICE_INPUT_DEFAULTS("RS232_DATABITS", 0xff, RS232_DATABITS_8)
DEVICE_INPUT_DEFAULTS("RS232_PARITY", 0xff, RS232_PARITY_ODD)
DEVICE_INPUT_DEFAULTS("RS232_STOPBITS", 0xff, RS232_STOPBITS_1)
DEVICE_INPUT_DEFAULTS_END
//**************************************************************************
// AUDIO
@ -473,6 +490,7 @@ MACHINE_CONFIG_START(guab_state::guab)
MCFG_TMS34061_ROWSHIFT(8) /* VRAM address is (row << rowshift) | col */
MCFG_TMS34061_VRAM_SIZE(0x40000)
MCFG_TMS34061_INTERRUPT_CB(INPUTLINE("maincpu", 5))
MCFG_VIDEO_SET_SCREEN("screen")
MCFG_SPEAKER_STANDARD_MONO("mono")
@ -507,6 +525,18 @@ MACHINE_CONFIG_START(guab_state::guab)
MCFG_I8255_OUT_PORTC_CB(WRITE8(guab_state, watchdog_w))
MCFG_DEVICE_ADD("acia6850_1", ACIA6850, 0)
MCFG_ACIA6850_TXD_HANDLER(DEVWRITELINE("rs232_1", rs232_port_device, write_txd))
MCFG_ACIA6850_RTS_HANDLER(DEVWRITELINE("rs232_1", rs232_port_device, write_rts))
MCFG_ACIA6850_IRQ_HANDLER(INPUTLINE("maincpu", 4))
MCFG_RS232_PORT_ADD("rs232_1", default_rs232_devices, nullptr)
MCFG_RS232_RXD_HANDLER(DEVWRITELINE("acia6850_1", acia6850_device, write_rxd))
MCFG_RS232_CTS_HANDLER(DEVWRITELINE("acia6850_1", acia6850_device, write_cts))
MCFG_DEVICE_CARD_DEVICE_INPUT_DEFAULTS("keyboard", acia_1_rs232_defaults)
MCFG_DEVICE_ADD("acia_clock", CLOCK, 153600) // source? the ptm doesn't seem to output any common baud values
MCFG_CLOCK_SIGNAL_HANDLER(DEVWRITELINE("acia6850_1", acia6850_device, write_txc))
MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("acia6850_1", acia6850_device, write_rxc))
MCFG_DEVICE_ADD("acia6850_2", ACIA6850, 0)