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vectorgraphic/vector4.cpp: Add Centronics printer support. (#10945)

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Eric Anderson 2023-03-02 08:39:20 -08:00 committed by GitHub
parent 0184503b86
commit 413aa761bf
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1 changed files with 24 additions and 6 deletions
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30
src/mame/vectorgraphic/vector4.cpp
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@ -37,7 +37,7 @@ https://www.bitsavers.org/pdf/vectorGraphic/vector_4/7100-0001_Vector_4_Users_Ma
TODO:
- S-100 interrupts and ready
- parallel port
- Qume (50 pin) parallel port
- WAIT CPU states
- CPM-86 and MS-DOS 2.0 don't boot
@ -48,6 +48,7 @@ TODO:
#include "sbcvideo.h"
#include "v4_kbd.h"
#include "bus/centronics/ctronics.h"
#include "bus/rs232/rs232.h"
#include "bus/s100/s100.h"
#include "bus/s100/vectordualmode.h"
@ -79,6 +80,8 @@ public:
, m_sbc_video(*this, "video")
, m_s100(*this, "s100")
, m_uart0(*this, "uart0")
, m_centronics(*this, "centprtr")
, m_ppi_pc(0)
{ }
void vector4(machine_config &config);
@ -91,6 +94,9 @@ private:
uint8_t msc_r();
void msc_w(uint8_t data) { machine_reset(); }
void addrmap_w(offs_t offset, uint8_t data);
void ppi_pb_w(uint8_t data) { m_centronics->write_strobe(BIT(data, 0) ? ASSERT_LINE : CLEAR_LINE); }
DECLARE_WRITE_LINE_MEMBER(centronics_busy_w) { if (state) m_ppi_pc |= 1; else m_ppi_pc &= ~1; }
int ppi_pc_r() { return m_ppi_pc; }
uint8_t s100_r(offs_t offset) { return m_s100->sinp_r(offset+0x20); }
void s100_w(offs_t offset, uint8_t data) { m_s100->sout_w(offset+0x20, data); }
void machine_start() override;
@ -105,6 +111,8 @@ private:
required_device<vector_sbc_video_device> m_sbc_video;
required_device<s100_bus_device> m_s100;
required_device<i8251_device> m_uart0;
required_device<centronics_device> m_centronics;
uint8_t m_ppi_pc;
};
@ -193,13 +201,13 @@ void vector4_state::vector4(machine_config &config)
pit.out_handler<0>().append_inputline(m_8088cpu, INPUT_LINE_IRQ0);
// 7200-0001 page 210 D13, D1
clock_device &keyboard_clock(CLOCK(config, "keyboard_clock", _2mclk/26/16));
I8251(config, m_uart0, 0);
vector4_keyboard_device &v4kbd(VECTOR4_KEYBOARD(config, "rs232keyboard", 0));
v4kbd.txd_handler().set(m_uart0, FUNC(i8251_device::write_rxd));
clock_device &keyboard_clock(CLOCK(config, "keyboard_clock", _2mclk/26/16));
keyboard_clock.signal_handler().set(m_uart0, FUNC(i8251_device::write_txc));
keyboard_clock.signal_handler().append(m_uart0, FUNC(i8251_device::write_rxc));
I8251(config, m_uart0, 0);
m_uart0->txd_handler().set(v4kbd, FUNC(vector4_keyboard_device::write_rxd));
v4kbd.txd_handler().set(m_uart0, FUNC(i8251_device::write_rxd));
// D3
i8251_device &uart1(I8251(config, "uart1", 0));
@ -226,8 +234,15 @@ void vector4_state::vector4(machine_config &config)
rs232prtr.cts_handler().set(uart2, FUNC(i8251_device::write_cts));
// 7200-0001 page 110 (II 5-19), 210 D8
// TODO: Qume (50 pin) and Centronics (36 pin)
I8255A(config, "ppi");
output_latch_device &cent_data_out(OUTPUT_LATCH(config, "cent_data_out"));
CENTRONICS(config, m_centronics, centronics_devices, nullptr);
m_centronics->set_output_latch(cent_data_out);
m_centronics->busy_handler().set(FUNC(vector4_state::centronics_busy_w));
i8255_device &ppi(I8255A(config, "ppi"));
ppi.out_pa_callback().set(cent_data_out, FUNC(output_latch_device::write));
ppi.out_pb_callback().set(FUNC(vector4_state::ppi_pb_w));
ppi.in_pc_callback().set(FUNC(vector4_state::ppi_pc_r));
SPEAKER(config, "mono").front_center();
sn76489_device &sn(SN76489(config, "sn", _2m));
@ -240,6 +255,9 @@ void vector4_state::machine_start()
m_8088cpu->space(AS_PROGRAM).install_ram(0, m_ram->mask(), m_ram->size() & 0x20000, m_ram->pointer());
for (int bank = 0; bank < (1<<5); bank++)
m_rambanks[bank]->configure_entries(0, 1<<7, m_ram->pointer(), 1<<11);
save_item(NAME(m_ppi_pc));
// Missing from schematic, but jumper wire present on the board.
m_uart0->write_cts(0);
}