diff options
Diffstat (limited to 'src/mame/drivers/laser3k.c')
-rw-r--r-- | src/mame/drivers/laser3k.c | 1037 |
1 files changed, 1037 insertions, 0 deletions
diff --git a/src/mame/drivers/laser3k.c b/src/mame/drivers/laser3k.c new file mode 100644 index 00000000000..a7a3fa3bfa3 --- /dev/null +++ b/src/mame/drivers/laser3k.c @@ -0,0 +1,1037 @@ +// license:BSD-3-Clause +// copyright-holders:R. Belmont +/*************************************************************************** + + laser3k.c + Driver for VTech Laser 3000 / Dick Smith Electronics "The Cat" + + This machine is somewhat similar to a 48K Apple II if you blur your eyes + a lot, but it generally fits in poorly with 100% compatible machines + (no chance of a compatible language card or auxmem) so it gets its own driver. + + An "emulation cartridge" is required to run Apple II software; it's unclear + what that consists of. + + Banking theory: + - 6502 has 4 banking windows, 0000-3FFF, 4000-7FFF, 8000-BFFF, C000-FFFF + - Physical address space is 0x00000-0x3FFFF. ROM and I/O at the top, RAM + up to 0x2FFFF (192k max). + - Each window has a bank number register at physical 3C07C/D/E/F + + Technical manual at: + http://mirrors.apple2.org.za/Apple%20II%20Documentation%20Project/Computers/LASER/LASER%203000/Manuals/The%20Cat%20Technical%20Reference%20Manual.pdf + + TODO: + - Finish keyboard + - RGB graphics mode + - FDC C800 page appears to be inside the FDC cartridge, need a dump :( (can hack to use IWM in the meantime) + - Centronics printer port (data at 3c090, read ack at 3c1c0, read busy at 3c1c2) + - cassette + +***************************************************************************/ + +#include "emu.h" +#include "cpu/m6502/m6502.h" +#include "machine/bankdev.h" +#include "machine/ram.h" +#include "machine/kb3600.h" +#include "sound/speaker.h" +#include "sound/sn76496.h" + +enum +{ + TEXT = 0, + HIRES, + RGB, + DHIRES +}; + +#define BLACK 0 +#define DKRED 1 +#define DKBLUE 2 +#define PURPLE 3 +#define DKGREEN 4 +#define DKGRAY 5 +#define BLUE 6 +#define LTBLUE 7 +#define BROWN 8 +#define ORANGE 9 +#define GRAY 10 +#define PINK 11 +#define GREEN 12 +#define YELLOW 13 +#define AQUA 14 +#define WHITE 15 + +class laser3k_state : public driver_device +{ +public: + laser3k_state(const machine_config &mconfig, device_type type, const char *tag) + : driver_device(mconfig, type, tag) + , m_maincpu(*this, "maincpu") + , m_ram(*this, "mainram") + , m_bank0(*this, "bank0") + , m_bank1(*this, "bank1") + , m_bank2(*this, "bank2") + , m_bank3(*this, "bank3") + , m_ay3600(*this, "ay3600") + , m_speaker(*this, "speaker") + , m_sn(*this, "sn76489") + , m_kbspecial(*this, "keyb_special") + { } + + required_device<m6502_device> m_maincpu; + required_device<ram_device> m_ram; + required_device<address_map_bank_device> m_bank0; + required_device<address_map_bank_device> m_bank1; + required_device<address_map_bank_device> m_bank2; + required_device<address_map_bank_device> m_bank3; + required_device<ay3600_device> m_ay3600; + required_device<speaker_sound_device> m_speaker; + required_device<sn76489_device> m_sn; + required_ioport m_kbspecial; + + READ8_MEMBER( ram_r ); + WRITE8_MEMBER( ram_w ); + READ8_MEMBER( io_r ); + WRITE8_MEMBER( io_w ); + READ8_MEMBER( io2_r ); + + virtual void machine_start(); + virtual void machine_reset(); + DECLARE_PALETTE_INIT(laser3k); + UINT32 screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect); + void text_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, int beginrow, int endrow); + void hgr_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, int beginrow, int endrow); + void dhgr_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, int beginrow, int endrow); + + DECLARE_READ_LINE_MEMBER(ay3600_shift_r); + DECLARE_READ_LINE_MEMBER(ay3600_control_r); + DECLARE_WRITE_LINE_MEMBER(ay3600_data_ready_w); + +private: + UINT8 m_bank0val, m_bank1val, m_bank2val, m_bank3val; + int m_flash; + int m_speaker_state; + int m_disp_page; + int m_bg_color, m_fg_color, m_border_color; + UINT16 m_lastchar, m_strobe; + UINT8 m_transchar; + bool m_80col; + bool m_mix; + int m_gfxmode; + UINT16 *m_hires_artifact_map; + UINT16 *m_dhires_artifact_map; + + void plot_text_character(bitmap_ind16 &bitmap, int xpos, int ypos, int xscale, UINT32 code, const UINT8 *textgfx_data, UINT32 textgfx_datalen); + void do_io(int offset); +}; + +/*************************************************************************** + ADDRESS MAP +***************************************************************************/ + +static ADDRESS_MAP_START( laser3k_map, AS_PROGRAM, 8, laser3k_state ) + AM_RANGE(0x0000, 0x3fff) AM_DEVICE("bank0", address_map_bank_device, amap8) + AM_RANGE(0x4000, 0x7fff) AM_DEVICE("bank1", address_map_bank_device, amap8) + AM_RANGE(0x8000, 0xbfff) AM_DEVICE("bank2", address_map_bank_device, amap8) + AM_RANGE(0xc000, 0xffff) AM_DEVICE("bank3", address_map_bank_device, amap8) +ADDRESS_MAP_END + +static ADDRESS_MAP_START( banks_map, AS_PROGRAM, 8, laser3k_state ) + AM_RANGE(0x00000, 0x2ffff) AM_READWRITE(ram_r, ram_w) + AM_RANGE(0x38000, 0x3bfff) AM_ROM AM_REGION("maincpu", 0) + AM_RANGE(0x3c000, 0x3c0ff) AM_READWRITE(io_r, io_w) + AM_RANGE(0x3c100, 0x3c1ff) AM_READ(io2_r) + AM_RANGE(0x3c200, 0x3ffff) AM_ROM AM_REGION("maincpu", 0x4200) +ADDRESS_MAP_END + +void laser3k_state::machine_start() +{ + static const UINT8 hires_artifact_color_table[] = + { + BLACK, PURPLE, GREEN, WHITE, + BLACK, BLUE, ORANGE, WHITE + }; + + static const UINT8 dhires_artifact_color_table[] = + { + BLACK, DKGREEN, BROWN, GREEN, + DKRED, DKGRAY, ORANGE, YELLOW, + DKBLUE, BLUE, GRAY, AQUA, + PURPLE, LTBLUE, PINK, WHITE + }; + int i, j; + UINT16 c; + + /* 2^3 dependent pixels * 2 color sets * 2 offsets */ + m_hires_artifact_map = auto_alloc_array(machine(), UINT16, 8 * 2 * 2); + + /* 2^4 dependent pixels */ + m_dhires_artifact_map = auto_alloc_array(machine(), UINT16, 16); + + /* build hires artifact map */ + for (i = 0; i < 8; i++) + { + for (j = 0; j < 2; j++) + { + if (i & 0x02) + { + if ((i & 0x05) != 0) + c = 3; + else + c = j ? 2 : 1; + } + else + { + if ((i & 0x05) == 0x05) + c = j ? 1 : 2; + else + c = 0; + } + m_hires_artifact_map[ 0 + j*8 + i] = hires_artifact_color_table[(c + 0) % 8]; + m_hires_artifact_map[16 + j*8 + i] = hires_artifact_color_table[(c + 4) % 8]; + } + } + + /* build double hires artifact map */ + for (i = 0; i < 16; i++) + { + m_dhires_artifact_map[i] = dhires_artifact_color_table[i]; + } +} + +void laser3k_state::machine_reset() +{ + m_bank0val = 0; + m_bank1val = 1; + m_bank2val = 2; + m_bank3val = 0xf; + m_bank0->set_bank(m_bank0val); + m_bank1->set_bank(m_bank1val); + m_bank2->set_bank(m_bank2val); + m_bank3->set_bank(m_bank3val); + + // reset the 6502 here with the banking set up so we get the right vector + m_maincpu->set_input_line(INPUT_LINE_RESET, ASSERT_LINE); + m_maincpu->set_input_line(INPUT_LINE_RESET, CLEAR_LINE); + + m_flash = 0; + m_speaker_state = 0; + m_disp_page = 0; + m_bg_color = 0; + m_fg_color = 15; + m_border_color = 0; + m_strobe = 0; + m_transchar = 0; + m_lastchar = 0; + m_80col = 0; + m_mix = false; + m_gfxmode = TEXT; + + UINT8 *rom = (UINT8 *)memregion("maincpu")->base(); + + // patch out disk controller ID for now so it drops right into BASIC + rom[0x4607] = 0; +} + +READ8_MEMBER( laser3k_state::ram_r ) +{ + return m_ram->read(offset); +} + +WRITE8_MEMBER( laser3k_state::ram_w ) +{ + m_ram->write(offset, data); +} + +// most softswitches don't care about read vs write, so handle them here +void laser3k_state::do_io(int offset) +{ + switch (offset) + { + case 0x08: // set border color to black + m_border_color = 0; + break; + case 0x09: // set border color to red + m_border_color = 1; + break; + case 0x0a: // set border color to green + m_border_color = 12; + break; + case 0x0b: // set border color to yellow + m_border_color = 13; + break; + case 0x0c: // set border color to blue + m_border_color = 6; + break; + case 0x0d: // set border color to magenta + m_border_color = 3; + break; + case 0x0e: // set border color to cyan + m_border_color = 14; + break; + case 0x0f: // set border color to white + m_border_color = 15; + break; + + case 0x18: // set bg color to black + m_bg_color = 0; + break; + case 0x19: // set bg color to red + m_bg_color = 1; + break; + case 0x1a: // set bg color to green + m_bg_color = 12; + break; + case 0x1b: // set bg color to yellow + m_bg_color = 13; + break; + case 0x1c: // set bg color to blue + m_bg_color = 6; + break; + case 0x1d: // set bg color to magenta + m_bg_color = 3; + break; + case 0x1e: // set bg color to cyan + m_bg_color = 14; + break; + case 0x1f: // set bg color to white + m_bg_color = 15; + break; + + case 0x28: // set fg color to normal + m_fg_color = 15; + break; + case 0x29: // set fg color to red + m_fg_color = 1; + break; + case 0x2a: // set fg color to green + m_fg_color = 12; + break; + case 0x2b: // set fg color to yellow + m_fg_color = 13; + break; + case 0x2c: // set fg color to blue + m_fg_color = 6; + break; + case 0x2d: // set fg color to magenta + m_fg_color = 3; + break; + case 0x2e: // set fg color to cyan + m_fg_color = 14; + break; + case 0x2f: // set fg color to white + m_fg_color = 15; + break; + + case 0x30: + m_speaker_state ^= 1; + m_speaker->level_w(m_speaker_state); + break; + + case 0x4c: // low resolution (40 column) + m_80col = false; + m_maincpu->set_unscaled_clock(1021800); + break; + + case 0x4d: // RGB mode + m_gfxmode = RGB; + break; + + case 0x4e: // double hi-res + m_80col = true; + m_gfxmode = DHIRES; + m_maincpu->set_unscaled_clock(1021800*2); + break; + + case 0x4f: // high resolution (80 column). Yes, the CPU clock also doubles when the pixel clock does (!) + m_80col = true; + m_maincpu->set_unscaled_clock(1021800*2); + break; + + case 0x50: // graphics mode + m_gfxmode = HIRES; + break; + + case 0x51: // text mode + m_gfxmode = TEXT; + break; + + case 0x52: // no mix + m_mix = false; + break; + + case 0x53: // mixed mode + m_mix = true; + break; + + case 0x54: // set page 1 + m_disp_page = 0; + break; + + case 0x55: // set page 2 + m_disp_page = 1; + break; + + case 0x56: // disable emulation (?) + break; + + default: + printf("do_io: unknown softswitch @ %x\n", offset); + break; + } +} + +READ8_MEMBER( laser3k_state::io_r ) +{ + switch (offset) + { + case 0x00: // keyboard latch + return m_transchar | m_strobe; + + case 0x10: // keyboard strobe + { + UINT8 rv = m_transchar | m_strobe; + m_strobe = 0; + return rv; + } + + case 0x7c: + return m_bank0val; + + case 0x7d: + return m_bank1val; + + case 0x7e: + return m_bank2val; + + case 0x7f: + return m_bank3val; + + default: + do_io(offset); + break; + } + + return 0xff; +} + +WRITE8_MEMBER( laser3k_state::io_w ) +{ + switch (offset) + { + case 0x10: // clear keyboard latch + m_strobe = 0; + break; + + case 0x68: // SN76489 sound + m_sn->write(space, 0, data); + break; + + case 0x78: // called "SYSTEM" in the boot ROM listing, but unsure what it does + break; + + case 0x7c: // bank 0 + m_bank0val = data & 0xf; + m_bank0->set_bank(m_bank0val); + break; + + case 0x7d: // bank 1 + m_bank1val = data & 0xf; + m_bank1->set_bank(m_bank1val); + break; + + case 0x7e: // bank 2 + m_bank2val = data & 0xf; + m_bank2->set_bank(m_bank2val); + break; + + case 0x7f: // bank 3 + m_bank3val = data & 0xf; + m_bank3->set_bank(m_bank3val); + break; + + default: + do_io(offset); + break; + } +} + +READ8_MEMBER( laser3k_state::io2_r ) +{ + switch (offset) + { + case 0xc2: // h-blank status + return space.machine().first_screen()->hblank() ? 0x80 : 0x00; + + case 0xc3: // v-blank status + return space.machine().first_screen()->vblank() ? 0x80 : 0x00; + + case 0xc5: // CPU 1/2 MHz status? + return 0x00; + + default: + printf("io2_r @ unknown %x\n", offset); + break; + } + + return 0xff; +} + +void laser3k_state::plot_text_character(bitmap_ind16 &bitmap, int xpos, int ypos, int xscale, UINT32 code, + const UINT8 *textgfx_data, UINT32 textgfx_datalen) +{ + int x, y, i; + int fg = m_fg_color; + int bg = m_bg_color; + const UINT8 *chardata; + UINT16 color; + + /* look up the character data */ + chardata = &textgfx_data[(code * 8) % textgfx_datalen]; + + if (m_flash && (code >= 0x40) && (code <= 0x7f)) + { + /* we're flashing; swap */ + i = fg; + fg = bg; + bg = i; + } + + for (y = 0; y < 8; y++) + { + for (x = 0; x < 7; x++) + { + color = (chardata[y] & (1 << (6-x))) ? fg : bg; + + for (i = 0; i < xscale; i++) + { + bitmap.pix16(ypos + y, xpos + (x * xscale) + i) = color; + } + } + } +} + +void laser3k_state::text_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, int beginrow, int endrow) +{ + int row, col; + UINT32 start_address; + UINT32 address; + UINT8 *m_a2_videoram = m_ram->pointer(); + + if (m_80col) + { + start_address = (m_disp_page == 0) ? 0x1000 : 0x1800; + } + else + { + start_address = (m_disp_page == 0) ? 0x400 : 0x800; + } + + m_flash = ((machine().time() * 4).seconds() & 1) ? 1 : 0; + + beginrow = MAX(beginrow, cliprect.min_y - (cliprect.min_y % 8)); + endrow = MIN(endrow, cliprect.max_y - (cliprect.max_y % 8) + 7); + + for (row = beginrow; row <= endrow; row += 8) + { + if (m_80col) + { + for (col = 0; col < 40; col++) + { + /* calculate address */ + address = start_address + ((((row/8) & 0x07) << 7) | (((row/8) & 0x18) * 5 + col)); + + plot_text_character(bitmap, col * 7, row, 1, m_a2_videoram[address], + memregion("gfx1")->base(), memregion("gfx1")->bytes()); + plot_text_character(bitmap, (col + 40) * 7, row, 1, m_a2_videoram[address+0x400], + memregion("gfx1")->base(), memregion("gfx1")->bytes()); + } + } + else + { + for (col = 0; col < 40; col++) + { + /* calculate address */ + address = start_address + ((((row/8) & 0x07) << 7) | (((row/8) & 0x18) * 5 + col)); + plot_text_character(bitmap, col * 14, row, 2, m_a2_videoram[address], + memregion("gfx1")->base(), memregion("gfx1")->bytes()); + } + } + } +} + +void laser3k_state::hgr_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, int beginrow, int endrow) +{ + const UINT8 *vram; + int row, col, b; + int offset; + UINT8 vram_row[42] ; + UINT16 v; + UINT16 *p; + UINT32 w; + UINT16 *artifact_map_ptr; + + /* sanity checks */ + if (beginrow < cliprect.min_y) + beginrow = cliprect.min_y; + if (endrow > cliprect.max_y) + endrow = cliprect.max_y; + if (endrow < beginrow) + return; + + vram = m_ram->pointer() + (m_disp_page ? 0x4000 : 0x2000); + + vram_row[0] = 0; + vram_row[41] = 0; + + for (row = beginrow; row <= endrow; row++) + { + for (col = 0; col < 40; col++) + { + offset = ((((row/8) & 0x07) << 7) | (((row/8) & 0x18) * 5 + col)) | ((row & 7) << 10); + vram_row[1+col] = vram[offset]; + } + + p = &bitmap.pix16(row); + + for (col = 0; col < 40; col++) + { + w = (((UINT32) vram_row[col+0] & 0x7f) << 0) + | (((UINT32) vram_row[col+1] & 0x7f) << 7) + | (((UINT32) vram_row[col+2] & 0x7f) << 14); + + artifact_map_ptr = &m_hires_artifact_map[((vram_row[col+1] & 0x80) >> 7) * 16]; + for (b = 0; b < 7; b++) + { + v = artifact_map_ptr[((w >> (b + 7-1)) & 0x07) | (((b ^ col) & 0x01) << 3)]; + *(p++) = v; + *(p++) = v; + } + } + } +} + +void laser3k_state::dhgr_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect, int beginrow, int endrow) +{ + const UINT8 *vram; + int row, col, b; + int offset; + UINT8 vram_row[82]; + UINT16 v; + UINT16 *p; + UINT32 w; + + /* sanity checks */ + if (beginrow < cliprect.min_y) + beginrow = cliprect.min_y; + if (endrow > cliprect.max_y) + endrow = cliprect.max_y; + if (endrow < beginrow) + return; + + vram = m_ram->pointer() + (m_disp_page ? 0x8000 : 0x4000); + + vram_row[0] = 0; + vram_row[81] = 0; + + for (row = beginrow; row <= endrow; row++) + { + for (col = 0; col < 40; col++) + { + offset = ((((row/8) & 0x07) << 7) | (((row/8) & 0x18) * 5 + col)) | ((row & 7) << 10); + if (col < 40) + { + vram_row[1+(col*2)+0] = vram[offset]; + vram_row[1+(col*2)+1] = vram[offset+1]; + } + else + { + vram_row[1+(col*2)+0] = vram[offset+0x2000]; + vram_row[1+(col*2)+1] = vram[offset+0x2001]; + } + } + + p = &bitmap.pix16(row); + + for (col = 0; col < 80; col++) + { + w = (((UINT32) vram_row[col+0] & 0x7f) << 0) + | (((UINT32) vram_row[col+1] & 0x7f) << 7) + | (((UINT32) vram_row[col+2] & 0x7f) << 14); + + for (b = 0; b < 7; b++) + { + v = m_dhires_artifact_map[((((w >> (b + 7-1)) & 0x0F) * 0x11) >> (((2-(col*7+b))) & 0x03)) & 0x0F]; + *(p++) = v; + } + } + } +} + +UINT32 laser3k_state::screen_update(screen_device &screen, bitmap_ind16 &bitmap, const rectangle &cliprect) +{ + switch (m_gfxmode) + { + case TEXT: + text_update(screen, bitmap, cliprect, 0, 191); + break; + + case HIRES: + if (m_mix) + { + hgr_update(screen, bitmap, cliprect, 0, 159); + text_update(screen, bitmap, cliprect, 160, 191); + } + else + { + hgr_update(screen, bitmap, cliprect, 0, 191); + } + break; + + case RGB: + break; + + case DHIRES: + if (m_mix) + { + dhgr_update(screen, bitmap, cliprect, 0, 159); + text_update(screen, bitmap, cliprect, 160, 191); + } + else + { + dhgr_update(screen, bitmap, cliprect, 0, 191); + } + break; + } + + return 0; +} + +READ_LINE_MEMBER(laser3k_state::ay3600_shift_r) +{ + // either shift key + if (m_kbspecial->read() & 0x06) + { + return ASSERT_LINE; + } + + return CLEAR_LINE; +} + +READ_LINE_MEMBER(laser3k_state::ay3600_control_r) +{ + if (m_kbspecial->read() & 0x08) + { + return ASSERT_LINE; + } + + return CLEAR_LINE; +} + +static const UINT8 key_remap[0x32][4] = +{ +/* norm shft ctrl both */ + { 0x33,0x23,0x33,0x23 }, /* 3 # 00 */ + { 0x34,0x24,0x34,0x24 }, /* 4 $ 01 */ + { 0x35,0x25,0x35,0x25 }, /* 5 % 02 */ + { 0x36,0x5e,0x35,0x53 }, /* 6 ^ 03 */ + { 0x37,0x26,0x37,0x26 }, /* 7 & 04 */ + { 0x38,0x2a,0x38,0x2a }, /* 8 * 05 */ + { 0x39,0x28,0x39,0x28 }, /* 9 ( 06 */ + { 0x30,0x29,0x30,0x29 }, /* 0 ) 07 */ + { 0x3b,0x3a,0x3b,0x3a }, /* ; : 08 */ + { 0x2d,0x5f,0x2d,0x1f }, /* - _ 09 */ + { 0x51,0x51,0x11,0x11 }, /* q Q 0a */ + { 0x57,0x57,0x17,0x17 }, /* w W 0b */ + { 0x45,0x45,0x05,0x05 }, /* e E 0c */ + { 0x52,0x52,0x12,0x12 }, /* r R 0d */ + { 0x54,0x54,0x14,0x14 }, /* t T 0e */ + { 0x59,0x59,0x19,0x19 }, /* y Y 0f */ + { 0x55,0x55,0x15,0x15 }, /* u U 10 */ + { 0x49,0x49,0x09,0x09 }, /* i I 11 */ + { 0x4f,0x4f,0x0f,0x0f }, /* o O 12 */ + { 0x50,0x50,0x10,0x10 }, /* p P 13 */ + { 0x44,0x44,0x04,0x04 }, /* d D 14 */ + { 0x46,0x46,0x06,0x06 }, /* f F 15 */ + { 0x47,0x47,0x07,0x07 }, /* g G 16 */ + { 0x48,0x48,0x08,0x08 }, /* h H 17 */ + { 0x4a,0x4a,0x0a,0x0a }, /* j J 18 */ + { 0x4b,0x4b,0x0b,0x0b }, /* k K 19 */ + { 0x4c,0x4c,0x0c,0x0c }, /* l L 1a */ + { 0x3d,0x2b,0x3d,0x2b }, /* = + 1b */ + { 0x08,0x08,0x08,0x08 }, /* Left 1c */ + { 0x15,0x15,0x15,0x15 }, /* Right 1d */ + { 0x5a,0x5a,0x1a,0x1a }, /* z Z 1e */ + { 0x58,0x58,0x18,0x18 }, /* x X 1f */ + { 0x43,0x43,0x03,0x03 }, /* c C 20 */ + { 0x56,0x56,0x16,0x16 }, /* v V 21 */ + { 0x42,0x42,0x02,0x02 }, /* b B 22 */ + { 0x4e,0x4e,0x0e,0x0e }, /* n N 23 */ + { 0x4d,0x4d,0x0d,0x0d }, /* m M 24 */ + { 0x2c,0x3c,0x2c,0x3c }, /* , < 25 */ + { 0x2e,0x3e,0x2e,0x3e }, /* . > 26 */ + { 0x2f,0x3f,0x2f,0x3f }, /* / ? 27 */ + { 0x53,0x53,0x13,0x13 }, /* s S 28 */ + { 0x32,0x40,0x32,0x00 }, /* 2 @ 29 */ + { 0x31,0x21,0x31,0x31 }, /* 1 ! 2a */ + { 0x9b,0x9b,0x9b,0x9b }, /* Escape 2b */ + { 0x41,0x41,0x01,0x01 }, /* a A 2c */ + { 0x20,0x20,0x20,0x20 }, /* Space 2d */ + { 0x27,0x22,0x27,0x22 }, /* ' " 2e */ + { 0x00,0x00,0x00,0x00 }, /* 0x2f unused */ + { 0x00,0x00,0x00,0x00 }, /* 0x30 unused */ + { 0x0d,0x0d,0x0d,0x0d }, /* Enter 31 */ +}; + +WRITE_LINE_MEMBER(laser3k_state::ay3600_data_ready_w) +{ + if (state == ASSERT_LINE) + { + int mod = 0; + m_lastchar = m_ay3600->b_r(); + + mod = (m_kbspecial->read() & 0x06) ? 0x01 : 0x00; + mod |= (m_kbspecial->read() & 0x08) ? 0x02 : 0x00; + +// printf("lastchar = %02x\n", m_lastchar & 0x3f); + + m_transchar = key_remap[m_lastchar&0x3f][mod]; + + if (m_transchar != 0) + { + m_strobe = 0x80; +// printf("new char = %04x (%02x)\n", m_lastchar&0x3f, m_transchar); + } + } +} + +/*************************************************************************** + INPUT PORTS +***************************************************************************/ + +static INPUT_PORTS_START( laser3k ) + PORT_START("X0") + PORT_BIT(0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_3) PORT_CHAR('3') PORT_CHAR('#') + PORT_BIT(0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_4) PORT_CHAR('4') PORT_CHAR('$') + PORT_BIT(0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_5) PORT_CHAR('5') PORT_CHAR('%') + PORT_BIT(0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_6) PORT_CHAR('6') PORT_CHAR('&') + PORT_BIT(0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_7) PORT_CHAR('7') PORT_CHAR('\'') + PORT_BIT(0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_8) PORT_CHAR('8') PORT_CHAR('(') + PORT_BIT(0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_9) PORT_CHAR('9') PORT_CHAR(')') + PORT_BIT(0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_0) PORT_CHAR('0') PORT_CHAR(')') + PORT_BIT(0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COLON) PORT_CHAR(';') PORT_CHAR(':') + PORT_BIT(0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_MINUS) PORT_CHAR('-') PORT_CHAR('_') + + PORT_START("X1") + PORT_BIT(0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Q) PORT_CHAR('Q') PORT_CHAR('q') + PORT_BIT(0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_W) PORT_CHAR('W') PORT_CHAR('w') + PORT_BIT(0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_E) PORT_CHAR('E') PORT_CHAR('e') + PORT_BIT(0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_R) PORT_CHAR('R') PORT_CHAR('r') + PORT_BIT(0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_T) PORT_CHAR('T') PORT_CHAR('t') + PORT_BIT(0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Y) PORT_CHAR('Y') PORT_CHAR('y') + PORT_BIT(0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_U) PORT_CHAR('U') PORT_CHAR('u') + PORT_BIT(0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_I) PORT_CHAR('I') PORT_CHAR('i') + PORT_BIT(0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_O) PORT_CHAR('O') PORT_CHAR('o') + PORT_BIT(0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_P) PORT_CHAR('P') PORT_CHAR('p') + + PORT_START("X2") + PORT_BIT(0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_D) PORT_CHAR('D') PORT_CHAR('d') + PORT_BIT(0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_F) PORT_CHAR('F') PORT_CHAR('f') + PORT_BIT(0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_G) PORT_CHAR('G') PORT_CHAR('g') + PORT_BIT(0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_H) PORT_CHAR('H') PORT_CHAR('h') + PORT_BIT(0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_J) PORT_CHAR('J') PORT_CHAR('j') + PORT_BIT(0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_K) PORT_CHAR('K') PORT_CHAR('k') + PORT_BIT(0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_L) PORT_CHAR('L') PORT_CHAR('l') + PORT_BIT(0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_EQUALS) PORT_CHAR('=') PORT_CHAR('+') + PORT_BIT(0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(UTF8_LEFT) PORT_CODE(KEYCODE_LEFT) + PORT_BIT(0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME(UTF8_RIGHT) PORT_CODE(KEYCODE_RIGHT) + + PORT_START("X3") + PORT_BIT(0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_Z) PORT_CHAR('Z') PORT_CHAR('z') + PORT_BIT(0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_X) PORT_CHAR('X') PORT_CHAR('x') + PORT_BIT(0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_C) PORT_CHAR('C') PORT_CHAR('c') + PORT_BIT(0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_V) PORT_CHAR('V') PORT_CHAR('v') + PORT_BIT(0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_B) PORT_CHAR('B') PORT_CHAR('b') + PORT_BIT(0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_N) PORT_CHAR('N') PORT_CHAR('n') + PORT_BIT(0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_M) PORT_CHAR('M') PORT_CHAR('m') + PORT_BIT(0x080, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_COMMA) PORT_CHAR(',') PORT_CHAR('<') + PORT_BIT(0x100, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_STOP) PORT_CHAR('.') PORT_CHAR('>') + PORT_BIT(0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SLASH) PORT_CHAR('/') PORT_CHAR('?') + + PORT_START("X4") + PORT_BIT(0x001, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_S) PORT_CHAR('S') PORT_CHAR('s') + PORT_BIT(0x002, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_2) PORT_CHAR('2') PORT_CHAR('\"') + PORT_BIT(0x004, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_1) PORT_CHAR('1') PORT_CHAR('!') + PORT_BIT(0x008, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Esc") PORT_CODE(KEYCODE_ESC) PORT_CHAR(27) + PORT_BIT(0x010, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_A) PORT_CHAR('A') PORT_CHAR('a') + PORT_BIT(0x020, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_SPACE) PORT_CHAR(' ') + PORT_BIT(0x040, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_CODE(KEYCODE_QUOTE) PORT_CHAR('\'') PORT_CHAR('\"') + PORT_BIT(0x080, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x100, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x200, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Return") PORT_CODE(KEYCODE_ENTER) PORT_CHAR(13) + + PORT_START("X5") + PORT_BIT(0x001, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x002, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x004, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x008, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x010, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x020, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x040, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x080, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x100, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x200, IP_ACTIVE_HIGH, IPT_UNUSED) + + PORT_START("X6") + PORT_BIT(0x001, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x002, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x004, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x008, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x010, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x020, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x040, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x080, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x100, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x200, IP_ACTIVE_HIGH, IPT_UNUSED) + + PORT_START("X7") + PORT_BIT(0x001, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x002, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x004, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x008, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x010, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x020, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x040, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x080, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x100, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x200, IP_ACTIVE_HIGH, IPT_UNUSED) + + PORT_START("X8") + PORT_BIT(0x001, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x002, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x004, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x008, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x010, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x020, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x040, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x080, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x100, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT(0x200, IP_ACTIVE_HIGH, IPT_UNUSED) + + PORT_START("keyb_special") + PORT_BIT( 0x01, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT( 0x02, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Left Shift") PORT_CODE(KEYCODE_LSHIFT) PORT_CHAR(UCHAR_SHIFT_1) + PORT_BIT( 0x04, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Right Shift") PORT_CODE(KEYCODE_RSHIFT) PORT_CHAR(UCHAR_SHIFT_1) + PORT_BIT( 0x08, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("Control") PORT_CODE(KEYCODE_LCONTROL) PORT_CHAR(UCHAR_SHIFT_2) + PORT_BIT( 0x10, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT( 0x20, IP_ACTIVE_HIGH, IPT_UNUSED) + PORT_BIT( 0x80, IP_ACTIVE_HIGH, IPT_KEYBOARD) PORT_NAME("RESET") PORT_CODE(KEYCODE_F12) +INPUT_PORTS_END + +// this is an apple II palette; it seems more likely the +// actual laser3000 has a digital RGB palette... +static const rgb_t laser3k_palette[] = +{ + rgb_t::black, + rgb_t(0xE3, 0x1E, 0x60), /* Dark Red */ + rgb_t(0x60, 0x4E, 0xBD), /* Dark Blue */ + rgb_t(0xFF, 0x44, 0xFD), /* Purple */ + rgb_t(0x00, 0xA3, 0x60), /* Dark Green */ + rgb_t(0x9C, 0x9C, 0x9C), /* Dark Gray */ + rgb_t(0x14, 0xCF, 0xFD), /* Medium Blue */ + rgb_t(0xD0, 0xC3, 0xFF), /* Light Blue */ + rgb_t(0x60, 0x72, 0x03), /* Brown */ + rgb_t(0xFF, 0x6A, 0x3C), /* Orange */ + rgb_t(0x9C, 0x9C, 0x9C), /* Light Grey */ + rgb_t(0xFF, 0xA0, 0xD0), /* Pink */ + rgb_t(0x14, 0xF5, 0x3C), /* Light Green */ + rgb_t(0xD0, 0xDD, 0x8D), /* Yellow */ + rgb_t(0x72, 0xFF, 0xD0), /* Aquamarine */ + rgb_t(0xFF, 0xFF, 0xFF) /* White */ +}; + +/* Initialize the palette */ +PALETTE_INIT_MEMBER(laser3k_state, laser3k) +{ + palette.set_pen_colors(0, laser3k_palette, ARRAY_LENGTH(laser3k_palette)); +} + +static MACHINE_CONFIG_START( laser3k, laser3k_state ) + /* basic machine hardware */ + MCFG_CPU_ADD("maincpu", M6502, 1021800) + MCFG_CPU_PROGRAM_MAP(laser3k_map) + + MCFG_SCREEN_ADD("screen", RASTER) + MCFG_SCREEN_REFRESH_RATE(50) + MCFG_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(2500)) /* not accurate */ + MCFG_SCREEN_SIZE(300*2, 192) + MCFG_SCREEN_VISIBLE_AREA(0, (280*2)-1,0,192-1) + MCFG_SCREEN_UPDATE_DRIVER(laser3k_state, screen_update) + MCFG_SCREEN_PALETTE("palette") + + MCFG_PALETTE_ADD("palette", ARRAY_LENGTH(laser3k_palette)) + MCFG_PALETTE_INIT_OWNER(laser3k_state, laser3k) + + /* memory banking */ + MCFG_DEVICE_ADD("bank0", ADDRESS_MAP_BANK, 0) + MCFG_DEVICE_PROGRAM_MAP(banks_map) + MCFG_ADDRESS_MAP_BANK_ENDIANNESS(ENDIANNESS_LITTLE) + MCFG_ADDRESS_MAP_BANK_DATABUS_WIDTH(8) + MCFG_ADDRESS_MAP_BANK_STRIDE(0x4000) + MCFG_DEVICE_ADD("bank1", ADDRESS_MAP_BANK, 0) + MCFG_DEVICE_PROGRAM_MAP(banks_map) + MCFG_ADDRESS_MAP_BANK_ENDIANNESS(ENDIANNESS_LITTLE) + MCFG_ADDRESS_MAP_BANK_DATABUS_WIDTH(8) + MCFG_ADDRESS_MAP_BANK_STRIDE(0x4000) + MCFG_DEVICE_ADD("bank2", ADDRESS_MAP_BANK, 0) + MCFG_DEVICE_PROGRAM_MAP(banks_map) + MCFG_ADDRESS_MAP_BANK_ENDIANNESS(ENDIANNESS_LITTLE) + MCFG_ADDRESS_MAP_BANK_DATABUS_WIDTH(8) + MCFG_ADDRESS_MAP_BANK_STRIDE(0x4000) + MCFG_DEVICE_ADD("bank3", ADDRESS_MAP_BANK, 0) + MCFG_DEVICE_PROGRAM_MAP(banks_map) + MCFG_ADDRESS_MAP_BANK_ENDIANNESS(ENDIANNESS_LITTLE) + MCFG_ADDRESS_MAP_BANK_DATABUS_WIDTH(8) + MCFG_ADDRESS_MAP_BANK_STRIDE(0x4000) + + MCFG_RAM_ADD("mainram") + MCFG_RAM_DEFAULT_SIZE("192K") + + /* the 8048 isn't dumped, so substitute modified real Apple II h/w */ + MCFG_DEVICE_ADD("ay3600", AY3600, 0) + MCFG_AY3600_MATRIX_X0(IOPORT("X0")) + MCFG_AY3600_MATRIX_X1(IOPORT("X1")) + MCFG_AY3600_MATRIX_X2(IOPORT("X2")) + MCFG_AY3600_MATRIX_X3(IOPORT("X3")) + MCFG_AY3600_MATRIX_X4(IOPORT("X4")) + MCFG_AY3600_MATRIX_X5(IOPORT("X5")) + MCFG_AY3600_MATRIX_X6(IOPORT("X6")) + MCFG_AY3600_MATRIX_X7(IOPORT("X7")) + MCFG_AY3600_MATRIX_X8(IOPORT("X8")) + MCFG_AY3600_SHIFT_CB(READLINE(laser3k_state, ay3600_shift_r)) + MCFG_AY3600_CONTROL_CB(READLINE(laser3k_state, ay3600_control_r)) + MCFG_AY3600_DATA_READY_CB(WRITELINE(laser3k_state, ay3600_data_ready_w)) + + /* sound hardware */ + MCFG_SPEAKER_STANDARD_MONO("mono") + MCFG_SOUND_ADD("speaker", SPEAKER_SOUND, 0) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 1.00) + MCFG_SOUND_ADD("sn76489", SN76489, 1020484) + MCFG_SOUND_ROUTE(ALL_OUTPUTS, "mono", 0.50) +MACHINE_CONFIG_END + +ROM_START(las3000) + ROM_REGION(0x0800,"gfx1",0) + ROM_LOAD ( "341-0036.chr", 0x0000, 0x0800, CRC(64f415c6) SHA1(f9d312f128c9557d9d6ac03bfad6c3ddf83e5659)) + + ROM_REGION(0x8000, "maincpu", 0) + ROM_LOAD ( "las3000.rom", 0x0000, 0x8000, CRC(9c7aeb09) SHA1(3302adf41e258cf50210c19736948c8fa65e91de)) + + ROM_REGION(0x100, "fdc", 0) + ROM_LOAD ( "l3kdisk.rom", 0x0000, 0x0100, CRC(2d4b1584) SHA1(989780b77e100598124df7b72663e5a31a3339c0)) +ROM_END + +/* YEAR NAME PARENT COMPAT MACHINE INPUT INIT COMPANY FULLNAME */ +COMP( 1983, las3000, 0, 0, laser3k, laser3k, driver_device, 0, "Video Technology", "Laser 3000", MACHINE_NOT_WORKING ) |