diff options
Diffstat (limited to 'src/mess/drivers/apricotf.c')
-rw-r--r-- | src/mess/drivers/apricotf.c | 403 |
1 files changed, 403 insertions, 0 deletions
diff --git a/src/mess/drivers/apricotf.c b/src/mess/drivers/apricotf.c new file mode 100644 index 00000000000..43689fda052 --- /dev/null +++ b/src/mess/drivers/apricotf.c @@ -0,0 +1,403 @@ +/*************************************************************************** + + ACT Apricot F1 series + + preliminary driver by Angelo Salese + + +11/09/2011 - modernised. The portable doesn't seem to have + scroll registers, and it sets the palette to black. + I've added a temporary video output so that you can get + an idea of what the screen should look like. [Robbbert] + +****************************************************************************/ + +/* + + TODO: + + - CTC/SIO interrupt acknowledge + - CTC clocks + - sound + +*/ + +#include "includes/apricotf.h" + + + +//************************************************************************** +// VIDEO +//************************************************************************** + +UINT32 f1_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) +{ + address_space *program = m_maincpu->memory().space(AS_PROGRAM); + int lines = m_200_256 ? 200 : 256; + + for (int y = 0; y < lines; y++) + { + offs_t addr = m_p_scrollram[y] << 1; + + for (int sx = 0; sx < 80; sx++) + { + UINT16 data = program->read_word(addr); + + if (m_40_80) + { + for (int x = 0; x < 8; x++) + { + int color = (BIT(data, 15) << 1) | BIT(data, 7); + + bitmap.pix16(y, (sx * 8) + x) = color; + + data <<= 1; + } + } + else + { + for (int x = 0; x < 4; x++) + { + int color = (BIT(data, 15) << 3) | (BIT(data, 14) << 2) | (BIT(data, 7) << 1) | BIT(data, 6); + + bitmap.pix16(y, (sx * 8) + (x * 2)) = color; + bitmap.pix16(y, (sx * 8) + (x * 2) + 1) = color; + + data <<= 2; + } + } + + addr += 2; + } + } + + return 0; +} + +READ16_MEMBER( f1_state::palette_r ) +{ + return m_p_paletteram[offset]; +} + +WRITE16_MEMBER( f1_state::palette_w ) +{ + UINT8 i,r,g,b; + COMBINE_DATA(&m_p_paletteram[offset]); + + if(ACCESSING_BITS_0_7 && offset) //TODO: offset 0 looks bogus + { + i = m_p_paletteram[offset] & 1; + r = ((m_p_paletteram[offset] & 2)>>0) | i; + g = ((m_p_paletteram[offset] & 4)>>1) | i; + b = ((m_p_paletteram[offset] & 8)>>2) | i; + + palette_set_color_rgb(machine(), offset, pal2bit(r), pal2bit(g), pal2bit(b)); + } +} + + +static const gfx_layout charset_8x8 = +{ + 8,8, + 256, + 1, + { 0 }, + { 0, 1, 2, 3, 4, 5, 6, 7 }, + { 0*8, 1*8, 2*8, 3*8, 4*8, 5*8, 6*8, 7*8 }, + 8*8 +}; + + +static GFXDECODE_START( act_f1 ) + GFXDECODE_ENTRY( I8086_TAG, 0x0800, charset_8x8, 0, 1 ) +GFXDECODE_END + + +WRITE8_MEMBER( f1_state::system_w ) +{ + switch(offset) + { + case 0: // centronics data port + m_centronics->write(space, 0, data); + break; + + case 1: // drive select + wd17xx_set_drive(m_fdc, !BIT(data, 0)); + break; + + case 3: // drive head load + break; + + case 5: // drive motor on + floppy_mon_w(m_floppy0, !BIT(data, 0)); + break; + + case 7: // video lines (1=200, 0=256) + m_200_256 = BIT(data, 0); + break; + + case 9: // video columns (1=80, 0=40) + m_40_80 = BIT(data, 0); + break; + + case 0x0b: // LED 0 enable + break; + + case 0x0d: // LED 1 enable + break; + + case 0x0f: // centronics strobe output + m_centronics->strobe_w(!BIT(data, 0)); + break; + } +} + + + +//************************************************************************** +// ADDRESS MAPS +//************************************************************************** + +//------------------------------------------------- +// ADDRESS_MAP( act_f1_mem ) +//------------------------------------------------- + +static ADDRESS_MAP_START( act_f1_mem, AS_PROGRAM, 16, f1_state ) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x00000, 0x01dff) AM_RAM + AM_RANGE(0x01e00, 0x01fff) AM_RAM AM_SHARE("p_scrollram") + AM_RANGE(0x02000, 0x3ffff) AM_RAM + AM_RANGE(0xe0000, 0xe001f) AM_READWRITE(palette_r, palette_w) AM_SHARE("p_paletteram") + AM_RANGE(0xf8000, 0xfffff) AM_ROM AM_REGION(I8086_TAG, 0) +ADDRESS_MAP_END + + +//------------------------------------------------- +// ADDRESS_MAP( act_f1_io ) +//------------------------------------------------- + +static ADDRESS_MAP_START( act_f1_io, AS_IO, 16, f1_state ) + ADDRESS_MAP_UNMAP_HIGH + AM_RANGE(0x0000, 0x000f) AM_WRITE8(system_w, 0xffff) + AM_RANGE(0x0010, 0x0017) AM_DEVREADWRITE8(Z80CTC_TAG, z80ctc_device, read, write, 0x00ff) + AM_RANGE(0x0020, 0x0027) AM_DEVREADWRITE8_LEGACY(Z80SIO2_TAG, z80dart_ba_cd_r, z80dart_ba_cd_w, 0x00ff) +// AM_RANGE(0x0030, 0x0031) AM_WRITE8_LEGACY(ctc_ack_w, 0x00ff) + AM_RANGE(0x0040, 0x0047) AM_DEVREADWRITE8_LEGACY(WD2797_TAG, wd17xx_r, wd17xx_w, 0x00ff) +// AM_RANGE(0x01e0, 0x01ff) winchester +ADDRESS_MAP_END + + +//************************************************************************** +// INPUT PORTS +//************************************************************************** + +//------------------------------------------------- +// INPUT_PORTS( act ) +//------------------------------------------------- + +static INPUT_PORTS_START( act ) + // defined in machine/apricotkb.c +INPUT_PORTS_END + + + +//************************************************************************** +// DEVICE CONFIGURATION +//************************************************************************** + +//------------------------------------------------- +// APRICOT_KEYBOARD_INTERFACE( kb_intf ) +//------------------------------------------------- + +static APRICOT_KEYBOARD_INTERFACE( kb_intf ) +{ + DEVCB_NULL +}; + + +//------------------------------------------------- +// Z80DART_INTERFACE( sio_intf ) +//------------------------------------------------- + +WRITE_LINE_MEMBER( f1_state::sio_int_w ) +{ + m_sio_int = state; + + m_maincpu->set_input_line(INPUT_LINE_IRQ0, m_ctc_int | m_sio_int); +} + +static Z80DART_INTERFACE( sio_intf ) +{ + 0, 0, 0, 0, + + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + + DEVCB_DRIVER_LINE_MEMBER(f1_state, sio_int_w) +}; + + +//------------------------------------------------- +// Z80CTC_INTERFACE( ctc_intf ) +//------------------------------------------------- + +WRITE_LINE_MEMBER( f1_state::ctc_int_w ) +{ + m_ctc_int = state; + + m_maincpu->set_input_line(INPUT_LINE_IRQ0, m_ctc_int | m_sio_int); +} + +WRITE_LINE_MEMBER( f1_state::ctc_z1_w ) +{ + z80dart_rxcb_w(m_sio, state); + z80dart_txcb_w(m_sio, state); +} + +WRITE_LINE_MEMBER( f1_state::ctc_z2_w ) +{ + z80dart_txca_w(m_sio, state); +} + +static Z80CTC_INTERFACE( ctc_intf ) +{ + DEVCB_DRIVER_LINE_MEMBER(f1_state, ctc_int_w), // interrupt handler + DEVCB_NULL, // ZC/TO0 callback + DEVCB_DRIVER_LINE_MEMBER(f1_state, ctc_z1_w), // ZC/TO1 callback + DEVCB_DRIVER_LINE_MEMBER(f1_state, ctc_z2_w), // ZC/TO2 callback +}; + + +//------------------------------------------------- +// wd17xx_interface fdc_intf +//------------------------------------------------- + +static LEGACY_FLOPPY_OPTIONS_START( act ) + LEGACY_FLOPPY_OPTION( img2hd, "dsk", "2HD disk image", basicdsk_identify_default, basicdsk_construct_default, NULL, + HEADS([2]) + TRACKS([80]) + SECTORS([16]) + SECTOR_LENGTH([256]) + FIRST_SECTOR_ID([1])) +LEGACY_FLOPPY_OPTIONS_END + +static const floppy_interface act_floppy_interface = +{ + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + DEVCB_NULL, + FLOPPY_STANDARD_3_5_DSDD, // Sony OA-D32W + LEGACY_FLOPPY_OPTIONS_NAME(act), + "floppy_3_5", + NULL +}; + +static const wd17xx_interface fdc_intf = +{ + DEVCB_NULL, + DEVCB_CPU_INPUT_LINE(I8086_TAG, INPUT_LINE_NMI), + DEVCB_CPU_INPUT_LINE(I8086_TAG, INPUT_LINE_TEST), // TODO inverted? + { FLOPPY_0, NULL, NULL, NULL } +}; + + +//------------------------------------------------- +// centronics_interface centronics_intf +//------------------------------------------------- + +static const centronics_interface centronics_intf = +{ + DEVCB_NULL, + DEVCB_DEVICE_LINE(Z80SIO2_TAG, z80dart_ctsa_w), + DEVCB_NULL +}; + + + +//************************************************************************** +// MACHINE DRIVERS +//************************************************************************** + +//------------------------------------------------- +// MACHINE_CONFIG( act_f1 ) +//------------------------------------------------- + +static MACHINE_CONFIG_START( act_f1, f1_state ) + /* basic machine hardware */ + MCFG_CPU_ADD(I8086_TAG, I8086, XTAL_14MHz/4) + MCFG_CPU_PROGRAM_MAP(act_f1_mem) + MCFG_CPU_IO_MAP(act_f1_io) + + /* video hardware */ + MCFG_SCREEN_ADD(SCREEN_TAG, RASTER) + MCFG_SCREEN_REFRESH_RATE(50) + MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ + MCFG_SCREEN_UPDATE_DRIVER(f1_state, screen_update) + MCFG_SCREEN_SIZE(640, 256) + MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 256-1) + MCFG_PALETTE_LENGTH(16) + MCFG_GFXDECODE(act_f1) + + /* Devices */ + MCFG_APRICOT_KEYBOARD_ADD(kb_intf) + MCFG_Z80DART_ADD(Z80SIO2_TAG, 2500000, sio_intf) + MCFG_Z80CTC_ADD(Z80CTC_TAG, 2500000, ctc_intf) + MCFG_WD2797_ADD(WD2797_TAG, fdc_intf) + MCFG_LEGACY_FLOPPY_2_DRIVES_ADD(act_floppy_interface) + MCFG_CENTRONICS_PRINTER_ADD(CENTRONICS_TAG, centronics_intf) +MACHINE_CONFIG_END + + + +//************************************************************************** +// ROMS +//************************************************************************** + +//------------------------------------------------- +// ROM( f1 ) +//------------------------------------------------- + +ROM_START( f1 ) + ROM_REGION( 0x8000, I8086_TAG, 0 ) + ROM_LOAD16_BYTE( "lo_f1_1.6.8f", 0x0000, 0x4000, CRC(be018be2) SHA1(80b97f5b2111daf112c69b3f58d1541a4ba69da0) ) // Labelled F1 - LO Vr. 1.6 + ROM_LOAD16_BYTE( "hi_f1_1.6.10f", 0x0001, 0x4000, CRC(bbba77e2) SHA1(e62bed409eb3198f4848f85fccd171cd0745c7c0) ) // Labelled F1 - HI Vr. 1.6 +ROM_END + +#define rom_f1e rom_f1 +#define rom_f2 rom_f1 + + +//------------------------------------------------- +// ROM( f10 ) +//------------------------------------------------- + +ROM_START( f10 ) + ROM_REGION( 0x8000, I8086_TAG, 0 ) + ROM_LOAD16_BYTE( "lo_f10_3.1.1.8f", 0x0000, 0x4000, CRC(bfd46ada) SHA1(0a36ef379fa9af7af9744b40c167ce6e12093485) ) // Labelled LO-FRange Vr3.1.1 + ROM_LOAD16_BYTE( "hi_f10_3.1.1.10f", 0x0001, 0x4000, CRC(67ad5b3a) SHA1(a5ececb87476a30167cf2a4eb35c03aeb6766601) ) // Labelled HI-FRange Vr3.1.1 +ROM_END + + + +//************************************************************************** +// SYSTEM DRIVERS +//************************************************************************** + +// YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME FLAGS +COMP( 1984, f1, 0, 0, act_f1, act, driver_device, 0, "ACT", "Apricot F1", GAME_NOT_WORKING | GAME_NO_SOUND ) +COMP( 1984, f1e, f1, 0, act_f1, act, driver_device, 0, "ACT", "Apricot F1e", GAME_NOT_WORKING | GAME_NO_SOUND ) +COMP( 1984, f2, f1, 0, act_f1, act, driver_device, 0, "ACT", "Apricot F2", GAME_NOT_WORKING | GAME_NO_SOUND ) +COMP( 1985, f10, f1, 0, act_f1, act, driver_device, 0, "ACT", "Apricot F10", GAME_NOT_WORKING | GAME_NO_SOUND ) |