diff options
Diffstat (limited to 'src/mame/drivers/mccpm.cpp')
-rw-r--r-- | src/mame/drivers/mccpm.cpp | 103 |
1 files changed, 37 insertions, 66 deletions
diff --git a/src/mame/drivers/mccpm.cpp b/src/mame/drivers/mccpm.cpp index 03003623456..a56ba8a2002 100644 --- a/src/mame/drivers/mccpm.cpp +++ b/src/mame/drivers/mccpm.cpp @@ -19,93 +19,51 @@ Z - print 'EFFF' URL for v3.4: http://www.hanshehl.de/mc-prog.htm (German language) -I/O ports (my guess) +unknown I/O ports (my guess) 30 - fdc (1st drive) 40 - fdc (2nd drive) -F0 - terminal in/out -F1 - terminal status - -SIO? - F0 to F3 -PIO A-Data 0F4h, A-Command 0F5h, B-Data 0F6h, B-Command 0F7h - -'maincpu' (F59C): unmapped i/o memory write to 00F1 = 01 & FF -'maincpu' (F59C): unmapped i/o memory write to 00F1 = 00 & FF -'maincpu' (F59C): unmapped i/o memory write to 00F1 = 03 & FF -'maincpu' (F59C): unmapped i/o memory write to 00F1 = E1 & FF -'maincpu' (F59C): unmapped i/o memory write to 00F1 = 04 & FF -'maincpu' (F59C): unmapped i/o memory write to 00F1 = 4C & FF -'maincpu' (F59C): unmapped i/o memory write to 00F1 = 05 & FF -'maincpu' (F59C): unmapped i/o memory write to 00F1 = EA & FF -'maincpu' (F5A5): unmapped i/o memory write to 00F3 = 01 & FF -'maincpu' (F5A5): unmapped i/o memory write to 00F3 = 00 & FF -'maincpu' (F5A5): unmapped i/o memory write to 00F3 = 03 & FF -'maincpu' (F5A5): unmapped i/o memory write to 00F3 = E1 & FF -'maincpu' (F5A5): unmapped i/o memory write to 00F3 = 04 & FF -'maincpu' (F5A5): unmapped i/o memory write to 00F3 = 4C & FF -'maincpu' (F5A5): unmapped i/o memory write to 00F3 = 05 & FF -'maincpu' (F5A5): unmapped i/o memory write to 00F3 = EA & FF -'maincpu' (F5A9): unmapped i/o memory write to 00F5 = CF & FF -'maincpu' (F5AD): unmapped i/o memory write to 00F5 = 7F & FF -'maincpu' (F5B1): unmapped i/o memory write to 00F7 = CF & FF -'maincpu' (F5B4): unmapped i/o memory write to 00F7 = 00 & FF -'maincpu' (F149): unmapped i/o memory write to 0040 = D0 & FF -'maincpu' (F14B): unmapped i/o memory write to 0030 = D0 & FF + ****************************************************************************/ #include "emu.h" #include "cpu/z80/z80.h" -#include "machine/terminal.h" +#include "machine/z80pio.h" +#include "machine/z80sio.h" +#include "machine/clock.h" +#include "bus/rs232/rs232.h" -#define TERMINAL_TAG "terminal" class mccpm_state : public driver_device { public: mccpm_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), - m_p_ram(*this, "p_ram") - { - } + : driver_device(mconfig, type, tag) + , m_maincpu(*this, "maincpu") + , m_p_ram(*this, "ram") + , m_sio(*this, "sio") + { } + + DECLARE_WRITE_LINE_MEMBER(clock_tick); +private: + virtual void machine_reset() override; required_device<cpu_device> m_maincpu; - required_device<generic_terminal_device> m_terminal; - DECLARE_READ8_MEMBER(mccpm_f0_r); - DECLARE_READ8_MEMBER(mccpm_f1_r); - void kbd_put(u8 data); required_shared_ptr<uint8_t> m_p_ram; - uint8_t m_term_data; - virtual void machine_reset() override; + required_device<z80sio_device> m_sio; }; - -READ8_MEMBER( mccpm_state::mccpm_f0_r ) -{ - uint8_t ret = m_term_data; - m_term_data = 0; - return ret; -} - -// bit 0 - key pressed -// bit 2 - ready to send to terminal -READ8_MEMBER( mccpm_state::mccpm_f1_r ) -{ - return (m_term_data) ? 5 : 4; -} - static ADDRESS_MAP_START(mccpm_mem, AS_PROGRAM, 8, mccpm_state) ADDRESS_MAP_UNMAP_HIGH - AM_RANGE(0x0000, 0xffff) AM_RAM AM_SHARE("p_ram") + AM_RANGE(0x0000, 0xffff) AM_RAM AM_SHARE("ram") ADDRESS_MAP_END static ADDRESS_MAP_START( mccpm_io, AS_IO, 8, mccpm_state) ADDRESS_MAP_UNMAP_HIGH ADDRESS_MAP_GLOBAL_MASK(0xff) - AM_RANGE(0xf0, 0xf0) AM_READ(mccpm_f0_r) AM_DEVWRITE(TERMINAL_TAG, generic_terminal_device, write) - AM_RANGE(0xf1, 0xf1) AM_READ(mccpm_f1_r) + AM_RANGE(0xf0, 0xf3) AM_DEVREADWRITE("sio", z80sio_device, ba_cd_r, ba_cd_w) + AM_RANGE(0xf4, 0xf7) AM_DEVREADWRITE("pio", z80pio_device, read_alt, write_alt) // init bytes look like those for a Z80PIO ADDRESS_MAP_END /* Input ports */ @@ -119,9 +77,10 @@ void mccpm_state::machine_reset() memcpy(m_p_ram, bios, 0x1000); } -void mccpm_state::kbd_put(u8 data) +WRITE_LINE_MEMBER( mccpm_state::clock_tick ) { - m_term_data = data; + m_sio->txca_w(state); + m_sio->rxca_w(state); } static MACHINE_CONFIG_START( mccpm ) @@ -130,9 +89,21 @@ static MACHINE_CONFIG_START( mccpm ) MCFG_CPU_PROGRAM_MAP(mccpm_mem) MCFG_CPU_IO_MAP(mccpm_io) - /* video hardware */ - MCFG_DEVICE_ADD(TERMINAL_TAG, GENERIC_TERMINAL, 0) - MCFG_GENERIC_TERMINAL_KEYBOARD_CB(PUT(mccpm_state, kbd_put)) + /* Devices */ + MCFG_DEVICE_ADD("uart_clock", CLOCK, 153600) + MCFG_CLOCK_SIGNAL_HANDLER(WRITELINE(mccpm_state, clock_tick)) + + MCFG_Z80SIO_ADD("sio", XTAL_4MHz, 0, 0, 0, 0) + MCFG_Z80SIO_OUT_INT_CB(INPUTLINE("maincpu", INPUT_LINE_IRQ0)) + MCFG_Z80SIO_OUT_TXDA_CB(DEVWRITELINE("rs232", rs232_port_device, write_txd)) + MCFG_Z80SIO_OUT_DTRA_CB(DEVWRITELINE("rs232", rs232_port_device, write_dtr)) + MCFG_Z80SIO_OUT_RTSA_CB(DEVWRITELINE("rs232", rs232_port_device, write_rts)) + + MCFG_RS232_PORT_ADD("rs232", default_rs232_devices, "terminal") + MCFG_RS232_RXD_HANDLER(DEVWRITELINE("sio", z80sio_device, rxa_w)) + MCFG_RS232_CTS_HANDLER(DEVWRITELINE("sio", z80sio_device, ctsa_w)) + + MCFG_DEVICE_ADD("pio", Z80PIO, XTAL_4MHz) MACHINE_CONFIG_END /* ROM definition */ |