diff options
Diffstat (limited to 'src/mame/drivers/v102.cpp')
-rw-r--r-- | src/mame/drivers/v102.cpp | 82 |
1 files changed, 67 insertions, 15 deletions
diff --git a/src/mame/drivers/v102.cpp b/src/mame/drivers/v102.cpp index 30680ae44ca..0a8071c354a 100644 --- a/src/mame/drivers/v102.cpp +++ b/src/mame/drivers/v102.cpp @@ -1,5 +1,5 @@ // license:BSD-3-Clause -// copyright-holders: +// copyright-holders:AJR /*********************************************************************************************************************************** Skeleton driver for Visual 102 display terminal. @@ -7,8 +7,8 @@ Skeleton driver for Visual 102 display terminal. ************************************************************************************************************************************/ #include "emu.h" +#include "bus/rs232/rs232.h" #include "cpu/z80/z80.h" -#include "cpu/mcs48/mcs48.h" #include "machine/eeprompar.h" #include "machine/input_merger.h" #include "machine/i8251.h" @@ -20,26 +20,37 @@ Skeleton driver for Visual 102 display terminal. //#include "video/crt9021.h" #include "screen.h" +#include "machine/v102_kbd.h" + class v102_state : public driver_device { public: v102_state(const machine_config &mconfig, device_type type, const char *tag) : driver_device(mconfig, type, tag) , m_maincpu(*this, "maincpu") - , m_p_chargen(*this, "chargen") + , m_mpsc(*this, "mpsc") + , m_chargen(*this, "chargen") { } void v102(machine_config &config); +protected: + virtual void machine_start() override; + private: u32 screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); + DECLARE_WRITE_LINE_MEMBER(hs_w); + void io_map(address_map &map); - void kbd_map(address_map &map); void mem_map(address_map &map); required_device<cpu_device> m_maincpu; - required_region_ptr<u8> m_p_chargen; + required_device<upd7201_new_device> m_mpsc; + required_region_ptr<u8> m_chargen; + + bool m_hs_state; + bool m_kb_clock; }; @@ -48,6 +59,18 @@ u32 v102_state::screen_update(screen_device &screen, bitmap_rgb32 &bitmap, const return 0; } +WRITE_LINE_MEMBER(v102_state::hs_w) +{ + if (state && !m_hs_state) + { + m_kb_clock = !m_kb_clock; + m_mpsc->txca_w(m_kb_clock); + m_mpsc->rxca_w(m_kb_clock); + } + + m_hs_state = bool(state); +} + void v102_state::mem_map(address_map &map) { @@ -68,9 +91,16 @@ void v102_state::io_map(address_map &map) map(0xa0, 0xa3).rw("ppi", FUNC(i8255_device::read), FUNC(i8255_device::write)); } -void v102_state::kbd_map(address_map &map) +void v102_state::machine_start() { - map(0x000, 0x7ff).rom().region("keyboard", 0); + m_hs_state = false; + m_kb_clock = false; + + m_mpsc->ctsa_w(0); + m_mpsc->ctsb_w(0); + + save_item(NAME(m_hs_state)); + save_item(NAME(m_kb_clock)); } static INPUT_PORTS_START(v102) @@ -90,23 +120,48 @@ void v102_state::v102(machine_config &config) crt9007_device &vpac(CRT9007(config, "vpac", 18.575_MHz_XTAL / 10)); vpac.set_character_width(10); // 6 in 132-column mode vpac.int_callback().set("mainirq", FUNC(input_merger_device::in_w<2>)); + vpac.hs_callback().set(FUNC(v102_state::hs_w)); + vpac.set_screen("screen"); EEPROM_2804(config, "eeprom"); - upd7201_new_device &mpsc(UPD7201_NEW(config, "mpsc", 18.575_MHz_XTAL / 5)); // divider not verified - mpsc.out_int_callback().set("mainirq", FUNC(input_merger_device::in_w<0>)); + UPD7201_NEW(config, m_mpsc, 18.575_MHz_XTAL / 5); // divider not verified + m_mpsc->out_int_callback().set("mainirq", FUNC(input_merger_device::in_w<0>)); + m_mpsc->out_txda_callback().set("keyboard", FUNC(v102_keyboard_device::write_rxd)); + m_mpsc->out_txdb_callback().set("aux", FUNC(rs232_port_device::write_txd)); + m_mpsc->out_dtrb_callback().set("aux", FUNC(rs232_port_device::write_dtr)); + m_mpsc->out_rtsb_callback().set("aux", FUNC(rs232_port_device::write_rts)); i8251_device &usart(I8251(config, "usart", 18.575_MHz_XTAL / 5)); // divider not verified usart.rxrdy_handler().set("mainirq", FUNC(input_merger_device::in_w<1>)); + usart.txd_handler().set("modem", FUNC(rs232_port_device::write_txd)); + usart.dtr_handler().set("modem", FUNC(rs232_port_device::write_dtr)); + usart.rts_handler().set("modem", FUNC(rs232_port_device::write_rts)); INPUT_MERGER_ANY_HIGH(config, "mainirq").output_handler().set_inputline(m_maincpu, INPUT_LINE_IRQ0); - PIT8253(config, "pit", 0); + pit8253_device &pit(PIT8253(config, "pit", 0)); + pit.set_clk<0>(18.575_MHz_XTAL / 6); + pit.set_clk<1>(18.575_MHz_XTAL / 6); + pit.set_clk<2>(18.575_MHz_XTAL / 6); + pit.out_handler<0>().set("usart", FUNC(i8251_device::write_txc)); + pit.out_handler<1>().set("usart", FUNC(i8251_device::write_rxc)); + pit.out_handler<2>().set(m_mpsc, FUNC(upd7201_new_device::txcb_w)); + pit.out_handler<2>().append(m_mpsc, FUNC(upd7201_new_device::rxcb_w)); I8255(config, "ppi"); - mcs48_cpu_device &kbdcpu(I8039(config, "kbdcpu", 4.608_MHz_XTAL)); // oscillator marked "4608 - 300 107 - KSS4D" - kbdcpu.set_addrmap(AS_PROGRAM, &v102_state::kbd_map); + v102_keyboard_device &keyboard(V102_KEYBOARD(config, "keyboard")); + keyboard.txd_callback().set(m_mpsc, FUNC(upd7201_new_device::rxa_w)); + + rs232_port_device &modem(RS232_PORT(config, "modem", default_rs232_devices, nullptr)); + modem.rxd_handler().set("usart", FUNC(i8251_device::write_rxd)); + modem.cts_handler().set("usart", FUNC(i8251_device::write_cts)); + modem.dcd_handler().set("usart", FUNC(i8251_device::write_dsr)); + + rs232_port_device &aux(RS232_PORT(config, "aux", default_rs232_devices, nullptr)); + aux.rxd_handler().set(m_mpsc, FUNC(upd7201_new_device::rxb_w)); + aux.dcd_handler().set(m_mpsc, FUNC(upd7201_new_device::dcdb_w)); // DTR (printer busy) } @@ -125,9 +180,6 @@ ROM_START( v102 ) ROM_REGION(0x1000, "chargen", 0) ROM_LOAD( "260-001.u50", 0x0000, 0x1000, CRC(732f5b99) SHA1(d105bf9f3ed41109d7181bcf0223bb280afe3f0a) ) - - ROM_REGION(0x0800, "keyboard", 0) - ROM_LOAD( "150.kbd", 0x0000, 0x0800, CRC(afe55cff) SHA1(b26ebdde63ec0e94c08780285def39a282e128b3) ) ROM_END COMP( 1984, v102, 0, 0, v102, v102, v102_state, empty_init, "Visual Technology", "Visual 102", MACHINE_IS_SKELETON ) |