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PMP-11 [Računalniški muzej]
This commit is contained in:
Miodrag Milanovic 2025-02-16 18:51:04 +01:00
parent 8d043f0f09
commit 344298890c
2 changed files with 108 additions and 0 deletions
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3
src/mame/mame.lst
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@ -42043,6 +42043,9 @@ orao103
pecom32
pecom64
@source:sfrj/pmp11.cpp
pmp11
@source:sfrj/tim011.cpp
tim011

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src/mame/sfrj/pmp11.cpp Normal file
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// license:BSD-3-Clause
// copyright-holders:Miodrag Milanovic
#include "emu.h"
#include "bus/rs232/rs232.h"
#include "cpu/t11/t11.h"
#include "imagedev/floppy.h"
#include "machine/clock.h"
#include "machine/i8251.h"
#include "machine/wd_fdc.h"
namespace {
class pmp11_state : public driver_device
{
public:
pmp11_state(const machine_config &mconfig, device_type type, const char *tag)
: driver_device(mconfig, type, tag)
, m_maincpu(*this, "maincpu")
, m_uart1(*this, "uart1")
, m_uart2(*this, "uart2")
, m_fdc(*this, "fdc")
{ }
void pmp11(machine_config &config);
private:
void pdp11_mem(address_map &map) ATTR_COLD;
required_device<t11_device> m_maincpu;
required_device<i8251_device> m_uart1;
required_device<i8251_device> m_uart2;
required_device<wd2797_device> m_fdc;
};
void pmp11_state::pdp11_mem(address_map &map)
{
map.unmap_value_high();
map(0x0000, 0xefff).ram();
map(0xf000, 0xf7ff).rom();
map(0xf800, 0xfbff).ram();
// TODO: Not sure if these are mirrored, but no control_w on alternate address
map(0xff70, 0xff71).mirror(0x4).rw(m_uart1, FUNC(i8251_device::status_r), FUNC(i8251_device::control_w)).umask16(0x00ff);
map(0xff72, 0xff73).mirror(0x4).rw(m_uart1, FUNC(i8251_device::data_r), FUNC(i8251_device::data_w)).umask16(0x00ff);
}
/* Input ports */
static INPUT_PORTS_START( pmp11 )
INPUT_PORTS_END
static DEVICE_INPUT_DEFAULTS_START( terminal )
DEVICE_INPUT_DEFAULTS( "RS232_RXBAUD", 0xff, RS232_BAUD_9600 )
DEVICE_INPUT_DEFAULTS( "RS232_TXBAUD", 0xff, RS232_BAUD_9600 )
DEVICE_INPUT_DEFAULTS( "RS232_DATABITS", 0xff, RS232_DATABITS_8 )
DEVICE_INPUT_DEFAULTS( "RS232_PARITY", 0xff, RS232_PARITY_NONE )
DEVICE_INPUT_DEFAULTS( "RS232_STOPBITS", 0xff, RS232_STOPBITS_1 )
DEVICE_INPUT_DEFAULTS_END
void pmp11_state::pmp11(machine_config &config)
{
T11(config, m_maincpu, 8_MHz_XTAL);
m_maincpu->set_initial_mode(7 << 13);
m_maincpu->set_addrmap(AS_PROGRAM, &pmp11_state::pdp11_mem);
clock_device &uart_clock(CLOCK(config, "uart_clock", 8_MHz_XTAL / 4 / 13));
uart_clock.signal_handler().set(m_uart1, FUNC(i8251_device::write_txc));
uart_clock.signal_handler().append(m_uart1, FUNC(i8251_device::write_rxc));
uart_clock.signal_handler().append(m_uart2, FUNC(i8251_device::write_txc));
uart_clock.signal_handler().append(m_uart2, FUNC(i8251_device::write_rxc));
I8251(config, m_uart1, 0);
m_uart1->txd_handler().set("rs232a", FUNC(rs232_port_device::write_txd));
m_uart1->dtr_handler().set("rs232a", FUNC(rs232_port_device::write_dtr));
m_uart1->rts_handler().set("rs232a", FUNC(rs232_port_device::write_rts));
rs232_port_device &rs232a(RS232_PORT(config, "rs232a", default_rs232_devices, "terminal"));
rs232a.rxd_handler().set("uart1", FUNC(i8251_device::write_rxd));
rs232a.dsr_handler().set("uart1", FUNC(i8251_device::write_dsr));
rs232a.cts_handler().set("uart1", FUNC(i8251_device::write_cts));
rs232a.set_option_device_input_defaults("terminal", DEVICE_INPUT_DEFAULTS_NAME(terminal));
I8251(config, m_uart2, 0);
m_uart2->txd_handler().set("rs232b", FUNC(rs232_port_device::write_txd));
m_uart2->dtr_handler().set("rs232b", FUNC(rs232_port_device::write_dtr));
m_uart2->rts_handler().set("rs232b", FUNC(rs232_port_device::write_rts));
rs232_port_device &rs232b(RS232_PORT(config, "rs232b", default_rs232_devices, nullptr));
rs232b.rxd_handler().set("uart2", FUNC(i8251_device::write_rxd));
rs232b.dsr_handler().set("uart2", FUNC(i8251_device::write_dsr));
rs232b.cts_handler().set("uart2", FUNC(i8251_device::write_cts));
WD2797(config, m_fdc, 8_MHz_XTAL / 4);
}
ROM_START( pmp11 )
ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF )
ROM_LOAD( "rom.bin", 0xf000, 0x0800, CRC(2cfdc3a3) SHA1(50ffa2a3bd0b75c1ecb4ab6c691796ab0d85dd4e))
ROM_END
} // Anonymous namespace
/* Driver */
/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */
COMP( 1985, pmp11, 0, 0, pmp11, pmp11, pmp11_state, empty_init, "Institut Jožef Stefan", "PMP-11", MACHINE_NOT_WORKING | MACHINE_NO_SOUND)