diff options
author | Robbbert <Robbbert@users.noreply.github.com> | 2017-09-17 16:25:49 +1000 |
---|---|---|
committer | Robbbert <Robbbert@users.noreply.github.com> | 2017-09-17 16:25:49 +1000 |
commit | d579842db328b1d0d5e1e65f1c06baa879153de6 (patch) | |
tree | d0f8dea936e72d1e25ea8e4caf3defd131e7d587 /src/mame/drivers/ipc.cpp | |
parent | d54e33ec23916bc5b867d13721373473ad881061 (diff) |
(nw) uarts for vector4, ccs300, ipc & cleanups
Diffstat (limited to 'src/mame/drivers/ipc.cpp')
-rw-r--r-- | src/mame/drivers/ipc.cpp | 97 |
1 files changed, 55 insertions, 42 deletions
diff --git a/src/mame/drivers/ipc.cpp b/src/mame/drivers/ipc.cpp index 0df64b30376..bcc57a8f479 100644 --- a/src/mame/drivers/ipc.cpp +++ b/src/mame/drivers/ipc.cpp @@ -41,55 +41,44 @@ #include "emu.h" #include "cpu/i8085/i8085.h" -#include "machine/terminal.h" +#include "machine/clock.h" +#include "machine/i8251.h" +#include "bus/rs232/rs232.h" -#define TERMINAL_TAG "terminal" class ipc_state : public driver_device { public: ipc_state(const machine_config &mconfig, device_type type, const char *tag) - : driver_device(mconfig, type, tag), - m_maincpu(*this, "maincpu"), - m_terminal(*this, TERMINAL_TAG) - { - } + : driver_device(mconfig, type, tag) + , m_maincpu(*this, "maincpu") + , m_uart1(*this, "uart1") + , m_uart2(*this, "uart2") + { } - required_device<cpu_device> m_maincpu; - required_device<generic_terminal_device> m_terminal; - DECLARE_READ8_MEMBER( ipc_f4_r ); - DECLARE_READ8_MEMBER( ipc_f5_r ); - void kbd_put(u8 data); - uint8_t *m_ram; - uint8_t m_term_data; + DECLARE_WRITE_LINE_MEMBER(clock_tick); + +private: virtual void machine_reset() override; + required_device<cpu_device> m_maincpu; + required_device<i8251_device> m_uart1; + required_device<i8251_device> m_uart2; }; -READ8_MEMBER( ipc_state::ipc_f4_r ) -{ - uint8_t ret = m_term_data; - m_term_data = 0; - return ret; -} - -// bit 0 high = ok to send to terminal; bit 1 high = key is pressed -READ8_MEMBER( ipc_state::ipc_f5_r ) -{ - return (m_term_data) ? 3 : 1; -} - static ADDRESS_MAP_START(ipc_mem, AS_PROGRAM, 8, ipc_state) ADDRESS_MAP_UNMAP_HIGH AM_RANGE(0x0000, 0xdfff) AM_RAM - AM_RANGE(0xe800, 0xffff) AM_ROM + AM_RANGE(0xe800, 0xffff) AM_ROM AM_REGION("roms", 0) ADDRESS_MAP_END static ADDRESS_MAP_START( ipc_io, AS_IO, 8, ipc_state) ADDRESS_MAP_UNMAP_HIGH ADDRESS_MAP_GLOBAL_MASK(0xff) - AM_RANGE(0xf4, 0xf4) AM_READ(ipc_f4_r) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write) - AM_RANGE(0xf5, 0xf5) AM_READ(ipc_f5_r) + AM_RANGE(0xf4, 0xf4) AM_DEVREADWRITE("uart1", i8251_device, data_r, data_w) + AM_RANGE(0xf5, 0xf5) AM_DEVREADWRITE("uart1", i8251_device, status_r, control_w) + AM_RANGE(0xf6, 0xf6) AM_DEVREADWRITE("uart2", i8251_device, data_r, data_w) + AM_RANGE(0xf7, 0xf7) AM_DEVREADWRITE("uart2", i8251_device, status_r, control_w) ADDRESS_MAP_END /* Input ports */ @@ -102,9 +91,13 @@ void ipc_state::machine_reset() m_maincpu->set_state_int(i8085a_cpu_device::I8085_PC, 0xE800); } -void ipc_state::kbd_put(u8 data) +// source of baud frequency is not documented, so we invent a clock +WRITE_LINE_MEMBER( ipc_state::clock_tick ) { - m_term_data = data; + m_uart1->write_txc(state); + m_uart1->write_rxc(state); + m_uart2->write_txc(state); + m_uart2->write_rxc(state); } static MACHINE_CONFIG_START( ipc ) @@ -114,27 +107,47 @@ static MACHINE_CONFIG_START( ipc ) MCFG_CPU_IO_MAP(ipc_io) /* video hardware */ - MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0) - MCFG_GENERIC_TERMINAL_KEYBOARD_CB(PUT(ipc_state, kbd_put)) + MCFG_DEVICE_ADD("uart_clock", CLOCK, 153600) + MCFG_CLOCK_SIGNAL_HANDLER(WRITELINE(ipc_state, clock_tick)) + + MCFG_DEVICE_ADD("uart1", I8251, 0) // 8 data bits, no parity, 1 stop bit + MCFG_I8251_TXD_HANDLER(DEVWRITELINE("rs232a", rs232_port_device, write_txd)) + MCFG_I8251_DTR_HANDLER(DEVWRITELINE("rs232a", rs232_port_device, write_dtr)) + MCFG_I8251_RTS_HANDLER(DEVWRITELINE("rs232a", rs232_port_device, write_rts)) + + MCFG_RS232_PORT_ADD("rs232a", default_rs232_devices, "terminal") + MCFG_RS232_RXD_HANDLER(DEVWRITELINE("uart1", i8251_device, write_rxd)) + MCFG_RS232_DSR_HANDLER(DEVWRITELINE("uart1", i8251_device, write_dsr)) + MCFG_RS232_CTS_HANDLER(DEVWRITELINE("uart1", i8251_device, write_cts)) + + MCFG_DEVICE_ADD("uart2", I8251, 0) // 8 data bits, no parity, 2 stop bits + MCFG_I8251_TXD_HANDLER(DEVWRITELINE("rs232b", rs232_port_device, write_txd)) + MCFG_I8251_DTR_HANDLER(DEVWRITELINE("rs232b", rs232_port_device, write_dtr)) + MCFG_I8251_RTS_HANDLER(DEVWRITELINE("rs232b", rs232_port_device, write_rts)) + + MCFG_RS232_PORT_ADD("rs232b", default_rs232_devices, nullptr) + MCFG_RS232_RXD_HANDLER(DEVWRITELINE("uart2", i8251_device, write_rxd)) + MCFG_RS232_DSR_HANDLER(DEVWRITELINE("uart2", i8251_device, write_dsr)) + MCFG_RS232_CTS_HANDLER(DEVWRITELINE("uart2", i8251_device, write_cts)) MACHINE_CONFIG_END /* ROM definition */ ROM_START( ipb ) - ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) - ROM_LOAD( "ipb_e8_v1.3.bin", 0xe800, 0x0800, CRC(fc9d4703) SHA1(2ce078e1bcd8b24217830c54bcf04c5d146d1b76) ) - ROM_LOAD( "ipb_f8_v1.3.bin", 0xf800, 0x0800, CRC(966ba421) SHA1(d6a904c7d992a05ed0f451d7d34c1fc8de9547ee) ) + ROM_REGION( 0x1800, "roms", ROMREGION_ERASEFF ) + ROM_LOAD( "ipb_e8_v1.3.bin", 0x0000, 0x0800, CRC(fc9d4703) SHA1(2ce078e1bcd8b24217830c54bcf04c5d146d1b76) ) + ROM_LOAD( "ipb_f8_v1.3.bin", 0x1000, 0x0800, CRC(966ba421) SHA1(d6a904c7d992a05ed0f451d7d34c1fc8de9547ee) ) ROM_END ROM_START( ipc ) - ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) - ROM_LOAD( "ipc_u82_v1.3_104584-001.bin", 0xe800, 0x1000, CRC(0889394f) SHA1(b7525baf1884a7d67402dea4b5566016a9861ef2) ) + ROM_REGION( 0x1800, "roms", ROMREGION_ERASEFF ) + ROM_LOAD( "ipc_u82_v1.3_104584-001.bin", 0x0000, 0x1000, CRC(0889394f) SHA1(b7525baf1884a7d67402dea4b5566016a9861ef2) ) // required rom is missing. Using this one from 'ipb' for now. - ROM_LOAD( "ipb_f8_v1.3.bin", 0xf800, 0x0800, BAD_DUMP CRC(966ba421) SHA1(d6a904c7d992a05ed0f451d7d34c1fc8de9547ee) ) + ROM_LOAD( "ipb_f8_v1.3.bin", 0x1000, 0x0800, BAD_DUMP CRC(966ba421) SHA1(d6a904c7d992a05ed0f451d7d34c1fc8de9547ee) ) ROM_END /* Driver */ /* YEAR NAME PARENT COMPAT MACHINE INPUT STATE INIT COMPANY FULLNAME FLAGS */ -COMP( 19??, ipb, 0, 0, ipc, ipc, ipc_state, 0, "Intel", "iPB", MACHINE_NO_SOUND) -COMP( 19??, ipc, ipb, 0, ipc, ipc, ipc_state, 0, "Intel", "iPC", MACHINE_NOT_WORKING | MACHINE_NO_SOUND) +COMP( 19??, ipb, 0, 0, ipc, ipc, ipc_state, 0, "Intel", "iPB", MACHINE_NO_SOUND_HW ) +COMP( 19??, ipc, ipb, 0, ipc, ipc, ipc_state, 0, "Intel", "iPC", MACHINE_NOT_WORKING | MACHINE_NO_SOUND_HW ) |