Sprinter/mame
2
0
Fork 0
mirror of https://github.com/holub/mame synced 2025-04-22 16:31:49 +03:00
Code Issues Actions Packages Projects Releases Wiki Activity

pm68k: Serial communications (nw)

Browse Source
This commit is contained in:
AJR 2017-09-20 21:03:04 -04:00
parent b39a098e23
commit fbf0224085
1 changed files with 27 additions and 30 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

57
src/mame/drivers/pm68k.cpp
View File

@ -12,7 +12,9 @@ Status: Boots into monitor, some commands work, some freeze.
#include "emu.h"
#include "cpu/m68000/m68000.h"
#include "machine/terminal.h"
#include "bus/rs232/rs232.h"
#include "machine/clock.h"
#include "machine/z80sio.h"
class pm68k_state : public driver_device
@ -22,41 +24,21 @@ public:
: driver_device(mconfig, type, tag)
, m_p_base(*this, "rambase")
, m_maincpu(*this, "maincpu")
, m_terminal(*this, "terminal")
{ }
void kbd_put(u8 data);
DECLARE_READ16_MEMBER(keyin_r);
DECLARE_READ16_MEMBER(status_r);
private:
uint8_t m_term_data;
virtual void machine_reset() override;
required_shared_ptr<uint16_t> m_p_base;
required_device<cpu_device> m_maincpu;
required_device<generic_terminal_device> m_terminal;
};
READ16_MEMBER( pm68k_state::keyin_r )
{
uint16_t ret = m_term_data;
m_term_data = 0;
return ret << 8;
}
READ16_MEMBER( pm68k_state::status_r )
{
return (m_term_data) ? 0x500 : 0x400;
}
static ADDRESS_MAP_START(pm68k_mem, AS_PROGRAM, 16, pm68k_state)
ADDRESS_MAP_UNMAP_HIGH
ADDRESS_MAP_GLOBAL_MASK(0xffffff)
AM_RANGE(0x000000, 0x1fffff) AM_RAM AM_SHARE("rambase")
AM_RANGE(0x200000, 0x205fff) AM_ROM AM_REGION("roms", 0)
AM_RANGE(0x600000, 0x600001) AM_READ(keyin_r) AM_DEVWRITE8("terminal", generic_terminal_device, write, 0xff00)
AM_RANGE(0x600002, 0x600003) AM_READ(status_r)
AM_RANGE(0x600000, 0x600007) AM_DEVREADWRITE8("mpsc", i8274_new_device, ba_cd_r, ba_cd_w, 0xff00)
ADDRESS_MAP_END
@ -72,19 +54,34 @@ void pm68k_state::machine_reset()
m_maincpu->reset();
}
void pm68k_state::kbd_put(u8 data)
{
m_term_data = data;
}
static MACHINE_CONFIG_START( pm68k )
/* basic machine hardware */
MCFG_CPU_ADD("maincpu", M68000, 8000000)
MCFG_CPU_PROGRAM_MAP(pm68k_mem)
/* video hardware */
MCFG_DEVICE_ADD("terminal", GENERIC_TERMINAL, 0)
MCFG_GENERIC_TERMINAL_KEYBOARD_CB(PUT(pm68k_state, kbd_put))
MCFG_DEVICE_ADD("mpsc", I8274_NEW, 0)
MCFG_Z80SIO_OUT_TXDA_CB(DEVWRITELINE("rs232a", rs232_port_device, write_txd))
MCFG_Z80SIO_OUT_DTRA_CB(DEVWRITELINE("rs232a", rs232_port_device, write_dtr))
MCFG_Z80SIO_OUT_RTSA_CB(DEVWRITELINE("rs232a", rs232_port_device, write_rts))
MCFG_Z80SIO_OUT_TXDB_CB(DEVWRITELINE("rs232b", rs232_port_device, write_txd))
MCFG_Z80SIO_OUT_DTRB_CB(DEVWRITELINE("rs232b", rs232_port_device, write_dtr))
MCFG_Z80SIO_OUT_RTSB_CB(DEVWRITELINE("rs232b", rs232_port_device, write_rts))
MCFG_DEVICE_ADD("baudclock", CLOCK, 153600)
MCFG_CLOCK_SIGNAL_HANDLER(DEVWRITELINE("mpsc", i8274_new_device, rxca_w))
MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("mpsc", i8274_new_device, rxcb_w))
MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("mpsc", i8274_new_device, txca_w))
MCFG_DEVCB_CHAIN_OUTPUT(DEVWRITELINE("mpsc", i8274_new_device, txcb_w))
MCFG_RS232_PORT_ADD("rs232a", default_rs232_devices, "terminal")
MCFG_RS232_RXD_HANDLER(DEVWRITELINE("mpsc", i8274_new_device, rxa_w))
MCFG_RS232_DSR_HANDLER(DEVWRITELINE("mpsc", i8274_new_device, dcda_w))
MCFG_RS232_CTS_HANDLER(DEVWRITELINE("mpsc", i8274_new_device, ctsa_w))
MCFG_RS232_PORT_ADD("rs232b", default_rs232_devices, nullptr)
MCFG_RS232_RXD_HANDLER(DEVWRITELINE("mpsc", i8274_new_device, rxb_w))
MCFG_RS232_DSR_HANDLER(DEVWRITELINE("mpsc", i8274_new_device, dcdb_w))
MCFG_RS232_CTS_HANDLER(DEVWRITELINE("mpsc", i8274_new_device, ctsb_w))
MACHINE_CONFIG_END
/* ROM definition */