mirror of
https://github.com/holub/mame
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New not-working machine: TRS-80 DT-1, first commit, still working on it.
This commit is contained in:
Robbbert
parent
594d8798fd
commit
507ea65d52
@ -3566,6 +3566,7 @@ files {
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MAME_DIR .. "src/mame/drivers/tecnbras.cpp",
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MAME_DIR .. "src/mame/drivers/terak.cpp",
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MAME_DIR .. "src/mame/drivers/ti630.cpp",
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MAME_DIR .. "src/mame/drivers/trs80dt1.cpp",
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MAME_DIR .. "src/mame/drivers/tsispch.cpp",
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MAME_DIR .. "src/mame/includes/tsispch.h",
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MAME_DIR .. "src/mame/drivers/tvgame.cpp",
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296
src/mame/drivers/trs80dt1.cpp
Normal file
296
src/mame/drivers/trs80dt1.cpp
Normal file
@ -0,0 +1,296 @@
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// license:BSD-3-Clause
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// copyright-holders: Robbbert
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/**********************************************************************************
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TRS-80 DT-1
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Tandy's Data Terminal.
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Skeleton driver commenced on 2017-10-25.
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Core bugs noted:
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- If AM_REGION used to locate the main rom in another region, validation
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complains that region ':maincpu' not found.
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- If region 'maincpu' changed to 0x1000 (same size as the rom), a fatal error
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of duplicate save state occurs at start.
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ToDo:
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- Serial i/o
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- Centronics printer
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- Fix video (it is hooked up as per schematic, but when text is present it
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scrolls crazily and flickers, also in debug the input-line queue can overflow).
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- Check that attributes are correctly applied
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- Keyboard is coded but not tested.
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- Add the nvram
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**********************************************************************************/
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#include "emu.h"
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#include "cpu/mcs51/mcs51.h"
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#include "video/i8275.h"
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#include "screen.h"
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//#include "logmacro.h"
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class trs80dt1_state : public driver_device
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{
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public:
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trs80dt1_state(const machine_config &mconfig, device_type type, const char *tag)
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: driver_device(mconfig, type, tag)
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, m_p_videoram(*this, "videoram")
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, m_p_chargen(*this, "chargen")
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, m_maincpu(*this, "maincpu")
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, m_palette(*this, "palette")
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, m_crtc(*this, "crtc")
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, m_keyboard(*this, "X%u", 0)
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{ }
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DECLARE_READ8_MEMBER(dma_r);
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DECLARE_READ8_MEMBER(key_r);
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DECLARE_WRITE_LINE_MEMBER(irq_w);
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DECLARE_WRITE_LINE_MEMBER(hrtc_w);
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I8275_DRAW_CHARACTER_MEMBER(crtc_update_row);
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private:
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bool m_irq_state;
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virtual void machine_reset() override;
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virtual void machine_start() override;
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required_shared_ptr<u8> m_p_videoram;
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required_region_ptr<u8> m_p_chargen;
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required_device<cpu_device> m_maincpu;
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required_device<palette_device> m_palette;
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required_device<i8275_device> m_crtc;
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required_ioport_array<9> m_keyboard;
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};
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void trs80dt1_state::machine_reset()
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{
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m_irq_state = 0;
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}
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READ8_MEMBER( trs80dt1_state::dma_r )
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{
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m_crtc->dack_w(space, 0, m_p_videoram[offset]); // write to /BS pin
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return 0x7f;
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}
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READ8_MEMBER( trs80dt1_state::key_r )
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{
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offset &= 15;
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if (offset < 9)
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return m_keyboard[offset]->read();
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else
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return 0xff;
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}
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WRITE_LINE_MEMBER( trs80dt1_state::irq_w )
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{
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m_irq_state = state;
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if (!state)
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m_maincpu->set_input_line(MCS51_INT1_LINE, CLEAR_LINE);
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}
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WRITE_LINE_MEMBER( trs80dt1_state::hrtc_w )
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{
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m_maincpu->set_input_line(MCS51_INT1_LINE, m_irq_state ? HOLD_LINE : CLEAR_LINE);
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}
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static ADDRESS_MAP_START( prg_map, AS_PROGRAM, 8, trs80dt1_state )
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AM_RANGE(0x0000, 0x0fff) AM_ROM // AM_REGION("roms", 0) AM_REGION ignored for this cpu
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AM_RANGE(0x2000, 0x27ff) AM_READ(dma_r)
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ADDRESS_MAP_END
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static ADDRESS_MAP_START( data_map, AS_DATA, 8, trs80dt1_state )
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ADDRESS_MAP_END
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static ADDRESS_MAP_START( io_map, AS_IO, 8, trs80dt1_state )
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ADDRESS_MAP_GLOBAL_MASK(0xbfff) // A14 not used
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AM_RANGE(0xa000, 0xa7ff) AM_RAM AM_SHARE("videoram")
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//AM_RANGE(0xa800, 0xabff) AM_RAM //NVRAM array select
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AM_RANGE(0xac00, 0xafff) AM_READ(key_r)
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AM_RANGE(0xb000, 0xb3ff) AM_READ_PORT("X9") //keyboard/RS232 input read
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//AM_RANGE(0xb400, 0xb7ff) AM_RAM //NVRAM write select
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AM_RANGE(0xbc00, 0xbc01) AM_MIRROR(0x3fe) AM_DEVREADWRITE("crtc", i8275_device, read, write) // i8276
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//AM_RANGE(MCS51_PORT_P0, MCS51_PORT_P3) AM_READWRITE(port_r, port_w)
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ADDRESS_MAP_END
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/* Input ports */
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static INPUT_PORTS_START( trs80dt1 )
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PORT_START("X0")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!')
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL) PORT_CHAR(0x7f)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('w') PORT_CHAR('W')
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_TAB) PORT_CHAR(9)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('k') PORT_CHAR('K')
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(32)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8_PAD)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9_PAD)
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PORT_START("X1")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('@')
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("BS") PORT_CODE(KEYCODE_BACKSPACE) PORT_CHAR(8)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('e') PORT_CHAR('E')
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('q') PORT_CHAR('Q')
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('l') PORT_CHAR('L')
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('z') PORT_CHAR('Z')
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7_PAD)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4_PAD)
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PORT_START("X2")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#')
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_')
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('r') PORT_CHAR('R')
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('a') PORT_CHAR('A')
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':')
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('x') PORT_CHAR('X')
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5_PAD)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6_PAD)
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PORT_START("X3")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$')
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+')
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('t') PORT_CHAR('T')
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('s') PORT_CHAR('S')
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('\"')
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('c') PORT_CHAR('C')
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_1_PAD) PORT_CHAR('1') PORT_CHAR('\\')
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_2_PAD)
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PORT_START("X4")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%')
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')')
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('y') PORT_CHAR('Y')
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('d') PORT_CHAR('D')
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Enter") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('v') PORT_CHAR('V')
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_3_PAD) PORT_CHAR('3') PORT_CHAR('~')
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_0_PAD)
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PORT_START("X5")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('^')
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_END) PORT_CHAR(3)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('u') PORT_CHAR('U')
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('f') PORT_CHAR('F')
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ESC) PORT_CHAR(27)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('b') PORT_CHAR('B')
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_DEL_PAD)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_ENTER_PAD)
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PORT_START("X6")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('&')
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Clear") PORT_CODE(KEYCODE_HOME)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('i') PORT_CHAR('I')
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('g') PORT_CHAR('G')
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_NAME("Linefeed") PORT_CODE(KEYCODE_INSERT)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('n') PORT_CHAR('N')
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_START("X7")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('*')
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CLOSEBRACE) PORT_CHAR('}') PORT_CHAR(']')
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('o') PORT_CHAR('O')
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('h') PORT_CHAR('H')
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?')
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('m') PORT_CHAR('M')
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_START("X8")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR('(')
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_OPENBRACE) PORT_CHAR('{') PORT_CHAR('[')
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('p') PORT_CHAR('P')
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('j') PORT_CHAR('J')
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>')
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<')
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_START("X9")
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PORT_BIT(0x01, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RSHIFT) PORT_CODE(KEYCODE_LSHIFT)
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PORT_BIT(0x02, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_RCONTROL) PORT_CODE(KEYCODE_LCONTROL)
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PORT_BIT(0x04, IP_ACTIVE_LOW, IPT_KEYBOARD) PORT_CODE(KEYCODE_CAPSLOCK) PORT_TOGGLE
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PORT_BIT(0x08, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x10, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x20, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x40, IP_ACTIVE_LOW, IPT_UNUSED)
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PORT_BIT(0x80, IP_ACTIVE_LOW, IPT_UNUSED)
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INPUT_PORTS_END
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void trs80dt1_state::machine_start()
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{
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m_palette->set_pen_color(0, rgb_t(0x00,0x00,0x00)); // black
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m_palette->set_pen_color(1, rgb_t(0x00,0xa0,0x00)); // normal
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m_palette->set_pen_color(2, rgb_t(0x00,0xff,0x00)); // highlight
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}
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const gfx_layout trs80dt1_charlayout =
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{
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8, 8, /* 8x16 characters - the last 8 lines are always blank */
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128, /* 128 characters */
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1, /* 1 bits per pixel */
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{0}, /* no bitplanes; 1 bit per pixel */
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{0,1,2,3,4,5,6,7},
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{0, 8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 },
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8*16 /* space between characters */
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};
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static GFXDECODE_START( trs80dt1 )
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GFXDECODE_ENTRY( "chargen", 0x0000, trs80dt1_charlayout, 0, 1 )
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GFXDECODE_END
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I8275_DRAW_CHARACTER_MEMBER( trs80dt1_state::crtc_update_row )
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{
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charcode &= 0x7f;
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linecount &= 15;
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const rgb_t *palette = m_palette->palette()->entry_list_raw();
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u8 gfx = (lten) ? 0xff : 0;
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if (!vsp)
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gfx = m_p_chargen[linecount | (charcode << 4)];
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if (rvv)
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gfx ^= 0xff;
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for(u8 i=0; i<8; i++)
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bitmap.pix32(y, x + i) = palette[BIT(gfx, 7-i) ? (hlgt ? 2 : 1) : 0];
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}
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static MACHINE_CONFIG_START( trs80dt1 )
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/* basic machine hardware */
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MCFG_CPU_ADD("maincpu", I8051, 7372800)
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MCFG_CPU_PROGRAM_MAP(prg_map)
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MCFG_CPU_DATA_MAP(data_map)
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MCFG_CPU_IO_MAP(io_map)
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/* video hardware */
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MCFG_SCREEN_ADD("screen", RASTER)
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MCFG_SCREEN_UPDATE_DEVICE("crtc", i8275_device, screen_update)
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MCFG_SCREEN_REFRESH_RATE(50)
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MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */
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MCFG_SCREEN_SIZE(40*12, 16*16)
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MCFG_SCREEN_VISIBLE_AREA(0, 40*12-1, 0, 16*16-1)
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MCFG_GFXDECODE_ADD("gfxdecode", "palette", trs80dt1 )
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MCFG_DEVICE_ADD("crtc", I8275, 12480000 / 8)
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MCFG_I8275_CHARACTER_WIDTH(8)
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MCFG_I8275_DRAW_CHARACTER_CALLBACK_OWNER(trs80dt1_state, crtc_update_row)
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MCFG_I8275_DRQ_CALLBACK(INPUTLINE("maincpu", MCS51_INT0_LINE)) // BRDY pin
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MCFG_I8275_IRQ_CALLBACK(WRITELINE(trs80dt1_state, irq_w)) // INT pin
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MCFG_I8275_HRTC_CALLBACK(WRITELINE(trs80dt1_state, hrtc_w))
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MCFG_VIDEO_SET_SCREEN("screen")
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MCFG_PALETTE_ADD("palette", 3)
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MACHINE_CONFIG_END
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ROM_START( trs80dt1 )
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ROM_REGION( 0x10000, "maincpu", 0 )
|
||||
ROM_LOAD( "trs80dt1.u12", 0x0000, 0x1000, CRC(04e8a53f) SHA1(7b5d5047319ef8f230b82684d97a918b564d466e) )
|
||||
|
||||
ROM_REGION( 0x0800, "chargen", 0 )
|
||||
ROM_LOAD( "8045716.u8", 0x0000, 0x0800, CRC(e2c5e59b) SHA1(0d571888d5f9fea4e565486ea8d3af8998ca46b1) )
|
||||
ROM_END
|
||||
|
||||
COMP( 1989, trs80dt1, 0, 0, trs80dt1, trs80dt1, trs80dt1_state, 0, "Radio Shack", "TRS-80 DT-1", MACHINE_NOT_WORKING | MACHINE_NO_SOUND )
|
||||
@ -36894,6 +36894,9 @@ trs80m3 // TRS-80 Model III - Radio Shack/Tandy
|
||||
trs80m4 //
|
||||
trs80m4p //
|
||||
|
||||
@source:trs80dt1.cpp
|
||||
trs80dt1 // TRS-80 Data Terminal 1
|
||||
|
||||
@source:trs80m2.cpp
|
||||
trs80m16 //
|
||||
trs80m2 //
|
||||
|
||||
Loading…
Reference in New Issue
Block a user