diff options
Diffstat (limited to 'src/mess/drivers/zrt80.c')
-rw-r--r-- | src/mess/drivers/zrt80.c | 323 |
1 files changed, 0 insertions, 323 deletions
diff --git a/src/mess/drivers/zrt80.c b/src/mess/drivers/zrt80.c deleted file mode 100644 index fa192a2050a..00000000000 --- a/src/mess/drivers/zrt80.c +++ /dev/null @@ -1,323 +0,0 @@ -// license:BSD-3-Clause -// copyright-holders:Robbbert -/*************************************************************************** - - DEC ZRT-80 - - 12/05/2009 Skeleton driver. - - 16/02/2011 Working. - - The beeper is external, frequency not known. I've made a reasonable - assumption of frequency and lengths. - - Make sure 'mode' dipswitch is set to 'local' so you can see your - typing. - -****************************************************************************/ - -#include "emu.h" -#include "cpu/z80/z80.h" -#include "video/mc6845.h" -#include "machine/ins8250.h" -#include "machine/keyboard.h" -#include "sound/beep.h" - -#define KEYBOARD_TAG "keyboard" - -class zrt80_state : public driver_device -{ -public: - enum - { - TIMER_BEEP_OFF - }; - - zrt80_state(const machine_config &mconfig, device_type type, const char *tag) - : driver_device(mconfig, type, tag), - m_p_videoram(*this, "videoram"), - m_maincpu(*this, "maincpu"), - m_crtc(*this, "crtc"), - m_8250(*this, "ins8250"), - m_beep(*this, "beeper"), - m_palette(*this, "palette") - { - } - - DECLARE_READ8_MEMBER(zrt80_10_r); - DECLARE_WRITE8_MEMBER(zrt80_30_w); - DECLARE_WRITE8_MEMBER(zrt80_38_w); - DECLARE_WRITE8_MEMBER(kbd_put); - MC6845_UPDATE_ROW(crtc_update_row); - const UINT8 *m_p_chargen; - required_shared_ptr<UINT8> m_p_videoram; -protected: - virtual void device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr); -private: - UINT8 m_term_data; - virtual void machine_reset(); - virtual void video_start(); - required_device<cpu_device> m_maincpu; - required_device<mc6845_device> m_crtc; - required_device<ins8250_device> m_8250; - required_device<beep_device> m_beep; -public: - required_device<palette_device> m_palette; -}; - - -READ8_MEMBER( zrt80_state::zrt80_10_r ) -{ - UINT8 ret = m_term_data; - m_maincpu->set_input_line(INPUT_LINE_NMI, CLEAR_LINE); - return ret; -} - -void zrt80_state::device_timer(emu_timer &timer, device_timer_id id, int param, void *ptr) -{ - switch (id) - { - case TIMER_BEEP_OFF: - m_beep->set_state(0); - break; - default: - assert_always(FALSE, "Unknown id in zrt80_state::device_timer"); - } -} - - -WRITE8_MEMBER(zrt80_state::zrt80_30_w) -{ - timer_set(attotime::from_msec(100), TIMER_BEEP_OFF); - m_beep->set_state(1); -} - -WRITE8_MEMBER(zrt80_state::zrt80_38_w) -{ - timer_set(attotime::from_msec(400), TIMER_BEEP_OFF); - m_beep->set_state(1); -} - -static ADDRESS_MAP_START(zrt80_mem, AS_PROGRAM, 8, zrt80_state) - ADDRESS_MAP_UNMAP_HIGH - AM_RANGE(0x0000, 0x0fff) AM_ROM // Z25 - Main firmware - AM_RANGE(0x1000, 0x1fff) AM_ROM // Z24 - Expansion - AM_RANGE(0x4000, 0x43ff) AM_RAM // Board RAM - // Normally video RAM is 0x800 but could be expanded up to 8K - AM_RANGE(0xc000, 0xdfff) AM_RAM AM_SHARE("videoram") // Video RAM - -ADDRESS_MAP_END - -static ADDRESS_MAP_START( zrt80_io, AS_IO, 8, zrt80_state) - ADDRESS_MAP_UNMAP_HIGH - ADDRESS_MAP_GLOBAL_MASK(0xff) - AM_RANGE(0x00, 0x07) AM_DEVREADWRITE("ins8250", ins8250_device, ins8250_r, ins8250_w ) - AM_RANGE(0x08, 0x08) AM_DEVWRITE("crtc", mc6845_device, address_w) - AM_RANGE(0x09, 0x09) AM_DEVREADWRITE("crtc", mc6845_device, register_r, register_w) - AM_RANGE(0x10, 0x17) AM_READ(zrt80_10_r) - AM_RANGE(0x18, 0x1F) AM_READ_PORT("DIPSW2") - AM_RANGE(0x20, 0x27) AM_READ_PORT("DIPSW3") - AM_RANGE(0x30, 0x37) AM_WRITE(zrt80_30_w) - AM_RANGE(0x38, 0x3F) AM_WRITE(zrt80_38_w) -ADDRESS_MAP_END - -/* Input ports */ -static INPUT_PORTS_START( zrt80 ) - PORT_START("DIPSW1") - PORT_DIPNAME( 0x01, 0x01, "Composite Sync" ) - PORT_DIPSETTING( 0x01, "Negative" ) - PORT_DIPSETTING( 0x00, "Positive" ) - PORT_DIPNAME( 0x02, 0x02, "Vertical Sync" ) - PORT_DIPSETTING( 0x02, "Negative" ) - PORT_DIPSETTING( 0x00, "Positive" ) - PORT_DIPNAME( 0x04, 0x00, "Video" ) - PORT_DIPSETTING( 0x04, "Negative" ) - PORT_DIPSETTING( 0x00, "Positive" ) - PORT_DIPNAME( 0x08, 0x08, "Keypad" ) - PORT_DIPSETTING( 0x08, "Numeric" ) - PORT_DIPSETTING( 0x00, "Alternate Keyboard" ) - PORT_DIPNAME( 0x10, 0x10, "Horizontal Sync" ) - PORT_DIPSETTING( 0x10, "Negative" ) - PORT_DIPSETTING( 0x00, "Positive" ) - PORT_DIPNAME( 0x20, 0x20, "CPU" ) - PORT_DIPSETTING( 0x20, "Operating" ) - PORT_DIPSETTING( 0x00, "Reset" ) - PORT_DIPNAME( 0x40, 0x40, "Keyboard strobe" ) - PORT_DIPSETTING( 0x40, "Negative" ) - PORT_DIPSETTING( 0x00, "Positive" ) - PORT_DIPNAME( 0x80, 0x00, "Beeper" ) - PORT_DIPSETTING( 0x80, "Silent" ) - PORT_DIPSETTING( 0x00, "Enable" ) - PORT_START("DIPSW2") - PORT_DIPNAME( 0x0f, 0x05, "Baud rate" ) - PORT_DIPSETTING( 0x00, "50" ) - PORT_DIPSETTING( 0x01, "75" ) - PORT_DIPSETTING( 0x02, "110" ) - PORT_DIPSETTING( 0x03, "134.5" ) - PORT_DIPSETTING( 0x04, "150" ) - PORT_DIPSETTING( 0x05, "300" ) - PORT_DIPSETTING( 0x06, "600" ) - PORT_DIPSETTING( 0x07, "1200" ) - PORT_DIPSETTING( 0x08, "1800" ) - PORT_DIPSETTING( 0x09, "2000" ) - PORT_DIPSETTING( 0x0a, "2400" ) - PORT_DIPSETTING( 0x0b, "3600" ) - PORT_DIPSETTING( 0x0c, "4800" ) - PORT_DIPSETTING( 0x0d, "7200" ) - PORT_DIPSETTING( 0x0e, "9600" ) - PORT_DIPSETTING( 0x0f, "19200" ) - PORT_DIPNAME( 0x30, 0x20, "Parity" ) - PORT_DIPSETTING( 0x00, "Odd" ) - PORT_DIPSETTING( 0x10, "Even" ) - PORT_DIPSETTING( 0x20, "Marking" ) - PORT_DIPSETTING( 0x30, "Spacing" ) - PORT_DIPNAME( 0x40, 0x40, "Handshake" ) - PORT_DIPSETTING( 0x40, "CTS" ) - PORT_DIPSETTING( 0x00, "XON/XOFF" ) - PORT_DIPNAME( 0x80, 0x80, "Line Feed" ) - PORT_DIPSETTING( 0x80, "No LF on CR" ) - PORT_DIPSETTING( 0x00, "Auto" ) - PORT_START("DIPSW3") - PORT_DIPNAME( 0x07, 0x07, "Display" ) - PORT_DIPSETTING( 0x00, "96 x 24 15750Hz, 50Hz" ) - PORT_DIPSETTING( 0x01, "80 x 48 15750Hz, 50Hz" ) - PORT_DIPSETTING( 0x02, "80 x 24 15750Hz, 50Hz" ) - PORT_DIPSETTING( 0x03, "96 x 24 15750Hz, 60Hz" ) - PORT_DIPSETTING( 0x04, "80 x 48 18700Hz, 50Hz" ) - PORT_DIPSETTING( 0x05, "80 x 24 17540Hz, 60Hz" ) - PORT_DIPSETTING( 0x06, "80 x 48 15750Hz, 60Hz" ) - PORT_DIPSETTING( 0x07, "80 x 24 15750Hz, 60Hz" ) - PORT_DIPNAME( 0x18, 0x18, "Emulation" ) - PORT_DIPSETTING( 0x00, "Adds" ) - PORT_DIPSETTING( 0x08, "Beehive" ) - PORT_DIPSETTING( 0x10, "LSI ADM-3" ) - PORT_DIPSETTING( 0x18, "Heath H-19" ) - PORT_DIPNAME( 0x20, 0x00, "Mode" ) - PORT_DIPSETTING( 0x20, "Line" ) - PORT_DIPSETTING( 0x00, "Local" ) - PORT_DIPNAME( 0x40, 0x40, "Duplex" ) - PORT_DIPSETTING( 0x40, "Full" ) - PORT_DIPSETTING( 0x00, "Half" ) - PORT_DIPNAME( 0x80, 0x80, "Wraparound" ) - PORT_DIPSETTING( 0x80, "Disabled" ) - PORT_DIPSETTING( 0x00, "Enabled" ) -INPUT_PORTS_END - - -void zrt80_state::machine_reset() -{ - m_beep->set_frequency(800); - m_term_data = 0; -} - -void zrt80_state::video_start() -{ - m_p_chargen = memregion("chargen")->base(); -} - -MC6845_UPDATE_ROW( zrt80_state::crtc_update_row ) -{ - const rgb_t *palette = m_palette->palette()->entry_list_raw(); - UINT8 chr,gfx,inv; - UINT16 mem,x; - UINT32 *p = &bitmap.pix32(y); - UINT8 polarity = ioport("DIPSW1")->read() & 4 ? 0xff : 0; - - for (x = 0; x < x_count; x++) - { - inv = polarity; - if (x == cursor_x) inv ^= 0xff; - mem = (ma + x) & 0x1fff; - chr = m_p_videoram[mem]; - - if BIT(chr, 7) - { - inv ^= 0xff; - chr &= 0x7f; - } - - gfx = m_p_chargen[(chr<<4) | ra] ^ inv; - - /* Display a scanline of a character */ - *p++ = palette[BIT(gfx, 7)]; - *p++ = palette[BIT(gfx, 6)]; - *p++ = palette[BIT(gfx, 5)]; - *p++ = palette[BIT(gfx, 4)]; - *p++ = palette[BIT(gfx, 3)]; - *p++ = palette[BIT(gfx, 2)]; - *p++ = palette[BIT(gfx, 1)]; - *p++ = palette[BIT(gfx, 0)]; - } -} - -WRITE8_MEMBER( zrt80_state::kbd_put ) -{ - m_term_data = data; - m_maincpu->set_input_line(INPUT_LINE_NMI, ASSERT_LINE); -} - -/* F4 Character Displayer */ -static const gfx_layout zrt80_charlayout = -{ - 8, 16, /* 8 x 16 characters */ - 128, /* 128 characters */ - 1, /* 1 bits per pixel */ - { 0 }, /* no bitplanes */ - /* x offsets */ - { 0, 1, 2, 3, 4, 5, 6, 7 }, - /* y offsets */ - { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8, 8*8, 9*8, 10*8, 11*8, 12*8, 13*8, 14*8, 15*8 }, - 8*16 /* every char takes 16 bytes */ -}; - -static GFXDECODE_START( zrt80 ) - GFXDECODE_ENTRY( "chargen", 0x0000, zrt80_charlayout, 0, 1 ) -GFXDECODE_END - -static MACHINE_CONFIG_START( zrt80, zrt80_state ) - /* basic machine hardware */ - MCFG_CPU_ADD("maincpu",Z80, XTAL_2_4576MHz) - MCFG_CPU_PROGRAM_MAP(zrt80_mem) - MCFG_CPU_IO_MAP(zrt80_io) - - /* video hardware */ - MCFG_SCREEN_ADD("screen", RASTER) - MCFG_SCREEN_REFRESH_RATE(60) - MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ - MCFG_SCREEN_UPDATE_DEVICE("crtc", mc6845_device, screen_update) - MCFG_SCREEN_SIZE(640, 200) - MCFG_SCREEN_VISIBLE_AREA(0, 640 - 1, 0, 200 - 1) - MCFG_GFXDECODE_ADD("gfxdecode", "palette", zrt80) - MCFG_PALETTE_ADD_MONOCHROME_GREEN("palette") - - /* sound hardware */ - MCFG_SPEAKER_STANDARD_MONO("mono") - MCFG_SOUND_ADD("beeper", BEEP, 0) - MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50) - - /* Devices */ - MCFG_MC6845_ADD("crtc", MC6845, "screen", XTAL_20MHz / 8) - MCFG_MC6845_SHOW_BORDER_AREA(false) - MCFG_MC6845_CHAR_WIDTH(8) /*?*/ - MCFG_MC6845_UPDATE_ROW_CB(zrt80_state, crtc_update_row) - - MCFG_DEVICE_ADD( "ins8250", INS8250, 2457600 ) - MCFG_INS8250_OUT_INT_CB(INPUTLINE("maincpu", INPUT_LINE_IRQ0)) - MCFG_DEVICE_ADD(KEYBOARD_TAG, GENERIC_KEYBOARD, 0) - MCFG_GENERIC_KEYBOARD_CB(WRITE8(zrt80_state, kbd_put)) -MACHINE_CONFIG_END - -/* ROM definition */ -ROM_START( zrt80 ) - ROM_REGION( 0x10000, "maincpu", ROMREGION_ERASEFF ) - ROM_LOAD("zrt80mon.z25", 0x0000, 0x1000, CRC(e6ea96dc) SHA1(e3075e30bb2b85f9288d0b8b8cdf1d2b4f7586fd) ) - //z24 is 2nd chip, used as expansion - - ROM_REGION( 0x0800, "chargen", 0 ) - ROM_LOAD("zrt80chr.z30", 0x0000, 0x0800, CRC(4dbdc60f) SHA1(20e393f7207a8440029c8290cdf2f121d317a37e) ) -ROM_END - -/* Driver */ - -/* YEAR NAME PARENT COMPAT MACHINE INPUT CLASS INIT COMPANY FULLNAME FLAGS */ -COMP( 1982, zrt80, 0, 0, zrt80, zrt80, driver_device, 0, "Digital Research Computers", "ZRT-80", 0) |