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(MESS) altos5: Fixed serial terminal, except for the CTC clocking. (nw)

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This commit is contained in:
Curt Coder 2013-06-06 21:28:48 +00:00
parent 04d5073c17
commit 229475674c
1 changed files with 52 additions and 90 deletions
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142
src/mess/drivers/altos5.c
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@ -12,7 +12,6 @@
#include "machine/z80dart.h"
#include "machine/z80dma.h"
#include "machine/serial.h"
#include "machine/terminal.h"
class altos5_state : public driver_device
@ -25,8 +24,7 @@ public:
m_pio1(*this, "z80pio_1"),
m_dart(*this, "z80dart"),
m_sio (*this, "z80sio"),
m_ctc (*this, "z80ctc"),
m_terminal(*this, TERMINAL_TAG)
m_ctc (*this, "z80ctc")
{ }
DECLARE_READ8_MEMBER(memory_read_byte);
@ -42,7 +40,7 @@ public:
DECLARE_WRITE8_MEMBER(kbd_put);
DECLARE_READ8_MEMBER(port2e_r);
DECLARE_READ8_MEMBER(port2f_r);
UINT8 m_term_data;
DECLARE_WRITE_LINE_MEMBER(ctc_z1_w);
UINT8 m_port08;
UINT8 m_port09;
bool m_ipl;
@ -53,9 +51,8 @@ public:
required_device<z80pio_device> m_pio0;
required_device<z80pio_device> m_pio1;
required_device<z80dart_device> m_dart;
optional_device<z80dart_device> m_sio;
required_device<z80sio0_device> m_sio;
required_device<z80ctc_device> m_ctc;
required_device<generic_terminal_device> m_terminal;
};
static ADDRESS_MAP_START(altos5_mem, AS_PROGRAM, 8, altos5_state)
@ -88,9 +85,7 @@ static ADDRESS_MAP_START(altos5_io, AS_IO, 8, altos5_state)
AM_RANGE(0x14, 0x17) AM_WRITE(port14_w)
AM_RANGE(0x1c, 0x1f) AM_DEVREADWRITE("z80dart", z80dart_device, ba_cd_r, ba_cd_w)
//AM_RANGE(0x20, 0x23) // Hard drive
AM_RANGE(0x2c, 0x2d) AM_NOP
AM_RANGE(0x2e, 0x2e) AM_READ(port2e_r) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write)
AM_RANGE(0x2f, 0x2f) AM_READ(port2f_r) AM_WRITENOP
AM_RANGE(0x2c, 0x2f) AM_DEVREADWRITE("z80sio", z80sio0_device, ba_cd_r, ba_cd_w)
ADDRESS_MAP_END
/* Input ports */
@ -213,12 +208,20 @@ static Z80DMA_INTERFACE( dma_intf )
};
// baud rate generator and RTC. All inputs are 2MHz.
WRITE_LINE_MEMBER( altos5_state::ctc_z1_w )
{
m_dart->rxca_w(state);
m_dart->txca_w(state);
m_sio->rxca_w(state);
m_sio->txca_w(state);
}
static Z80CTC_INTERFACE( ctc_intf )
{
DEVCB_CPU_INPUT_LINE("maincpu", INPUT_LINE_IRQ0), // interrupt callback
DEVCB_NULL, /* ZC/TO0 callback - SIO Ch B */
DEVCB_NULL, /* ZC/TO1 callback - Z80DART Ch A, SIO Ch A */
DEVCB_NULL, /* ZC/TO2 callback - Z80DART Ch B */
DEVCB_DEVICE_LINE_MEMBER("z80sio", z80dart_device, rxtxcb_w), /* ZC/TO0 callback - SIO Ch B */
DEVCB_DRIVER_LINE_MEMBER(altos5_state, ctc_z1_w), /* ZC/TO1 callback - Z80DART Ch A, SIO Ch A */
DEVCB_DEVICE_LINE_MEMBER("z80dart", z80dart_device, rxtxcb_w), /* ZC/TO2 callback - Z80DART Ch B */
};
// system functions
@ -273,6 +276,41 @@ static Z80DART_INTERFACE( dart_intf )
DEVCB_NULL
};
static Z80SIO_INTERFACE( sio_intf )
{
9600, 9600, 153600, 153600, // rxa, txa, rxb, txb clocks (from CTC)
// console#2
DEVCB_NULL, // ChA in data
DEVCB_NULL, // out data
DEVCB_NULL, // DTR
DEVCB_NULL, // RTS
DEVCB_NULL, // WRDY
DEVCB_NULL, // SYNC
// console#1
DEVCB_DEVICE_LINE_MEMBER("rs232", serial_port_device, rx),
DEVCB_DEVICE_LINE_MEMBER("rs232", serial_port_device, tx),
DEVCB_DEVICE_LINE_MEMBER("rs232", rs232_port_device, dtr_w),
DEVCB_DEVICE_LINE_MEMBER("rs232", rs232_port_device, rts_w),
DEVCB_NULL,
DEVCB_NULL,
DEVCB_CPU_INPUT_LINE("maincpu", INPUT_LINE_IRQ0),
DEVCB_NULL, // unused DRQ pins
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL
};
static const rs232_port_interface rs232_intf =
{
DEVCB_NULL,
DEVCB_DEVICE_LINE_MEMBER("z80sio", z80dart_device, dcda_w),
DEVCB_NULL,
DEVCB_NULL,
DEVCB_DEVICE_LINE_MEMBER("z80sio", z80dart_device, ctsa_w)
};
DRIVER_INIT_MEMBER( altos5_state, altos5 )
{
@ -311,28 +349,6 @@ DRIVER_INIT_MEMBER( altos5_state, altos5 )
membank("bankwf")->configure_entries(0, 50, &RAM[0], 0x1000);
}
READ8_MEMBER( altos5_state::port2e_r )
{
UINT8 ret = m_term_data;
m_term_data = 0;
return ret;
}
READ8_MEMBER( altos5_state::port2f_r )
{
return (m_term_data) ? 13 : 12;
}
WRITE8_MEMBER( altos5_state::kbd_put )
{
m_term_data = data;
}
static GENERIC_TERMINAL_INTERFACE( terminal_intf )
{
DEVCB_DRIVER_MEMBER(altos5_state, kbd_put)
};
static MACHINE_CONFIG_START( altos5, altos5_state )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", Z80, XTAL_8MHz / 2)
@ -340,15 +356,14 @@ static MACHINE_CONFIG_START( altos5, altos5_state )
MCFG_CPU_IO_MAP(altos5_io)
MCFG_CPU_CONFIG(daisy_chain_intf)
/* video hardware */
MCFG_GENERIC_TERMINAL_ADD(TERMINAL_TAG, terminal_intf)
/* Devices */
MCFG_Z80DMA_ADD( "z80dma", XTAL_8MHz / 2, dma_intf)
MCFG_Z80PIO_ADD( "z80pio_0", XTAL_8MHz / 2, pio0_intf )
MCFG_Z80PIO_ADD( "z80pio_1", XTAL_8MHz / 2, pio1_intf )
MCFG_Z80CTC_ADD( "z80ctc", XTAL_8MHz / 2, ctc_intf )
MCFG_Z80DART_ADD("z80dart", XTAL_8MHz / 2, dart_intf )
MCFG_Z80SIO0_ADD("z80sio", XTAL_8MHz / 2, sio_intf )
MCFG_RS232_PORT_ADD("rs232", rs232_intf, default_rs232_devices, "serial_terminal")
MACHINE_CONFIG_END
@ -367,56 +382,3 @@ ROM_END
/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
COMP(1982, altos5, 0, 0, altos5, altos5, altos5_state, altos5, "Altos", "Altos 5-15", GAME_NOT_WORKING | GAME_NO_SOUND)
#if 0
/****************** UNUSED SERIAL CODE ************************/
//AM_RANGE(0x2c, 0x2f) AM_DEVREADWRITE("z80sio", z80dart_device, ba_cd_r, ba_cd_w)
static Z80SIO_INTERFACE( sio_intf )
{
9600, 9600, 153600, 153600, // rxa, txa, rxb, txb clocks (from CTC)
// console#2
DEVCB_NULL, // ChA in data
DEVCB_NULL, // out data
DEVCB_NULL, // DTR
DEVCB_NULL, // RTS
DEVCB_NULL, // WRDY
DEVCB_NULL, // SYNC
// console#1
DEVCB_DEVICE_LINE_MEMBER("rs232", serial_port_device, rx),
DEVCB_DEVICE_LINE_MEMBER("rs232", serial_port_device, tx),
DEVCB_DEVICE_LINE_MEMBER("rs232", rs232_port_device, dtr_w),
DEVCB_DEVICE_LINE_MEMBER("rs232", rs232_port_device, rts_w),
DEVCB_NULL,
DEVCB_NULL,
DEVCB_CPU_INPUT_LINE("maincpu", INPUT_LINE_IRQ0),
DEVCB_NULL, // unused DRQ pins
DEVCB_NULL,
DEVCB_NULL,
DEVCB_NULL
};
static const rs232_port_interface rs232_intf =
{
// all outputs
DEVCB_NULL,//DEVCB_DEVICE_LINE_MEMBER("z80sio", z80dart_device, rxcb_w), // data
DEVCB_NULL, // DCD
DEVCB_NULL, // DSR
DEVCB_NULL, // RI
DEVCB_NULL //DEVCB_DEVICE_LINE_MEMBER("z80sio", z80dart_device, ctsb_w) // CTS
};
//MCFG_Z80SIO0_ADD("z80sio", XTAL_8MHz / 2, sio_intf )
//MCFG_RS232_PORT_ADD("rs232", rs232_intf, default_rs232_devices, "serial_terminal")
#endif