diff options
Diffstat (limited to 'src/mame/drivers/ipds.c')
-rw-r--r-- | src/mame/drivers/ipds.c | 168 |
1 files changed, 168 insertions, 0 deletions
diff --git a/src/mame/drivers/ipds.c b/src/mame/drivers/ipds.c new file mode 100644 index 00000000000..4b25d00bebc --- /dev/null +++ b/src/mame/drivers/ipds.c @@ -0,0 +1,168 @@ +// license:BSD-3-Clause +// copyright-holders:Robbbert +/*************************************************************************** + + Intel iPDS + + 17/12/2009 Skeleton driver. + +****************************************************************************/ + +#include "emu.h" +#include "cpu/i8085/i8085.h" +#include "video/i8275.h" +#include "machine/keyboard.h" + +#define KEYBOARD_TAG "keyboard" + +class ipds_state : public driver_device +{ +public: + ipds_state(const machine_config &mconfig, device_type type, const char *tag) + : driver_device(mconfig, type, tag), + m_maincpu(*this, "maincpu"), + m_crtc(*this, "i8275"), + m_palette(*this, "palette") + { + } + + required_device<cpu_device> m_maincpu; + required_device<i8275_device> m_crtc; + required_device<palette_device> m_palette; + DECLARE_READ8_MEMBER(ipds_b0_r); + DECLARE_READ8_MEMBER(ipds_b1_r); + DECLARE_READ8_MEMBER(ipds_c0_r); + DECLARE_WRITE8_MEMBER(ipds_b1_w); + DECLARE_WRITE8_MEMBER(kbd_put); + I8275_DRAW_CHARACTER_MEMBER( crtc_display_pixels ); + UINT8 m_term_data; + virtual void machine_reset(); +}; + +READ8_MEMBER( ipds_state::ipds_b0_r ) +{ + if (m_term_data) + return 0xc0; + else + return 0x80; +} + +READ8_MEMBER( ipds_state::ipds_b1_r ) +{ + UINT8 ret = m_term_data; + m_term_data = 0; + return ret; +} + +READ8_MEMBER( ipds_state::ipds_c0_r ) { return 0x55; } + +WRITE8_MEMBER( ipds_state::ipds_b1_w ) +{ +} + +static ADDRESS_MAP_START(ipds_mem, AS_PROGRAM, 8, ipds_state) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x0000, 0x07ff) AM_ROM + AM_RANGE(0x0800, 0xffff) AM_RAM +ADDRESS_MAP_END + +static ADDRESS_MAP_START( ipds_io, AS_IO, 8, ipds_state) + ADDRESS_MAP_GLOBAL_MASK(0xff) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0xb0, 0xb0) AM_READ(ipds_b0_r) + AM_RANGE(0xb1, 0xb1) AM_READWRITE(ipds_b1_r,ipds_b1_w) + AM_RANGE(0xc0, 0xc0) AM_READ(ipds_c0_r) +ADDRESS_MAP_END + +/* Input ports */ +static INPUT_PORTS_START( ipds ) +INPUT_PORTS_END + +void ipds_state::machine_reset() +{ +} + +I8275_DRAW_CHARACTER_MEMBER( ipds_state::crtc_display_pixels ) +{ + int i; + const rgb_t *palette = m_palette->palette()->entry_list_raw(); + UINT8 *charmap = memregion("chargen")->base(); + UINT8 pixels = charmap[(linecount & 7) + (charcode << 3)] ^ 0xff; + + if (vsp) + pixels = 0; + + if (lten) + pixels = 0xff; + + if (rvv) + pixels ^= 0xff; + + for(i=0;i<6;i++) + bitmap.pix32(y, x + i) = palette[(pixels >> (5-i)) & 1 ? (hlgt ? 2 : 1) : 0]; +} + +/* F4 Character Displayer */ +static const gfx_layout ipds_charlayout = +{ + 8, 11, /* 8 x 11 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 }, + 8*16 /* every char takes 16 bytes */ +}; + +static GFXDECODE_START( ipds ) + GFXDECODE_ENTRY( "chargen", 0x0000, ipds_charlayout, 0, 1 ) +GFXDECODE_END + + +WRITE8_MEMBER( ipds_state::kbd_put ) +{ + m_term_data = data; +} + +static MACHINE_CONFIG_START( ipds, ipds_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu",I8085A, XTAL_19_6608MHz / 4) + MCFG_CPU_PROGRAM_MAP(ipds_mem) + MCFG_CPU_IO_MAP(ipds_io) + + /* video hardware */ + MCFG_SCREEN_ADD("screen", RASTER) + MCFG_SCREEN_UPDATE_DEVICE("i8275", i8275_device, screen_update) + MCFG_SCREEN_REFRESH_RATE(50) + MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ + MCFG_SCREEN_SIZE(640, 480) + MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 480-1) + MCFG_GFXDECODE_ADD("gfxdecode", "palette", ipds) + MCFG_PALETTE_ADD_MONOCHROME_GREEN("palette") + + MCFG_DEVICE_ADD("i8275", I8275, XTAL_19_6608MHz / 4) + MCFG_I8275_CHARACTER_WIDTH(6) + MCFG_I8275_DRAW_CHARACTER_CALLBACK_OWNER(ipds_state, crtc_display_pixels) + + MCFG_DEVICE_ADD(KEYBOARD_TAG, GENERIC_KEYBOARD, 0) + MCFG_GENERIC_KEYBOARD_CB(WRITE8(ipds_state, kbd_put)) +MACHINE_CONFIG_END + +/* ROM definition */ +ROM_START( ipds ) + ROM_REGION( 0x10000, "maincpu", 0 ) + ROM_LOAD( "164180.bin", 0x0000, 0x0800, CRC(10ba23ce) SHA1(67a9d03a08cdd7c70a867fb7e069703c7a0b9094) ) + + ROM_REGION( 0x10000, "slavecpu", ROMREGION_ERASEFF ) + ROM_LOAD( "164196.bin", 0x0000, 0x1000, CRC(d3e18bc6) SHA1(01bc233be154bdfea9e8015839c5885cdaa08f11) ) + + ROM_REGION(0x0800, "chargen",0) + ROM_LOAD( "163642.bin", 0x0000, 0x0800, CRC(3d81b2d1) SHA1(262a42920f15f1156ad0717c876cc0b2ed947ec5) ) +ROM_END + +/* Driver */ + +/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS */ +COMP( 1982, ipds, 0, 0, ipds, ipds, driver_device, 0, "Intel", "iPDS", MACHINE_NOT_WORKING | MACHINE_NO_SOUND) |