trunk/src/mess/drivers/hp16500.c
| r242374 | r242375 | |
|---|
| 1 | | /* |
| 2 | | Hewlett-Packard HP16500b Logic Analyzer |
| 1 | /*************************************************************************** |
| 2 | |
| 3 | Hewlett-Packard HP16500b Logic Analyzer |
| 3 | 4 | |
| 4 | 5 | MC68EC030 @ 25 MHz |
| 5 | 6 | |
| r242374 | r242375 | |
|---|
| 15 | 16 | IRQ 5 = 814a |
| 16 | 17 | IRQ 6 = 35c8 (jump 840120) |
| 17 | 18 | IRQ 7 = 35d4 (jump 840120) |
| 18 | | */ |
| 19 | 19 | |
| 20 | ****************************************************************************/ |
| 20 | 21 | |
| 21 | 22 | #include "emu.h" |
| 22 | 23 | #include "cpu/m68000/m68000.h" |
| 23 | 24 | |
| 24 | | |
| 25 | 25 | class hp16500_state : public driver_device |
| 26 | 26 | { |
| 27 | 27 | public: |
| 28 | 28 | hp16500_state(const machine_config &mconfig, device_type type, const char *tag) |
| 29 | | : driver_device(mconfig, type, tag) , |
| 30 | | m_maincpu(*this, "maincpu") { } |
| 29 | : driver_device(mconfig, type, tag), |
| 30 | m_maincpu(*this, "maincpu"), |
| 31 | m_vram(*this, "vram") |
| 32 | { } |
| 31 | 33 | |
| 32 | 34 | virtual void video_start(); |
| 33 | 35 | UINT32 screen_update_hp16500(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect); |
| 36 | |
| 34 | 37 | required_device<cpu_device> m_maincpu; |
| 38 | required_shared_ptr<UINT32> m_vram; |
| 39 | |
| 40 | |
| 41 | DECLARE_WRITE32_MEMBER(palette_w); |
| 42 | |
| 43 | private: |
| 44 | UINT32 m_palette[256], m_colors[3], m_count, m_clutoffs; |
| 35 | 45 | }; |
| 36 | 46 | |
| 37 | | |
| 38 | 47 | static ADDRESS_MAP_START(hp16500_map, AS_PROGRAM, 32, hp16500_state) |
| 39 | 48 | AM_RANGE(0x00000000, 0x0001ffff) AM_ROM AM_REGION("bios", 0) |
| 40 | | AM_RANGE(0x00600000, 0x0063ffff) AM_RAM |
| 49 | AM_RANGE(0x0020f000, 0x0020f003) AM_WRITE(palette_w) |
| 50 | AM_RANGE(0x00600000, 0x0063ffff) AM_RAM AM_SHARE("vram") |
| 41 | 51 | AM_RANGE(0x00800000, 0x009fffff) AM_RAM // 284e end of test - d0 = 0 for pass |
| 42 | 52 | ADDRESS_MAP_END |
| 43 | 53 | |
| 44 | 54 | void hp16500_state::video_start() |
| 45 | 55 | { |
| 56 | m_count = 0; |
| 57 | m_clutoffs = 0; |
| 58 | memset(m_palette, 0, sizeof(m_palette)); |
| 46 | 59 | } |
| 47 | 60 | |
| 61 | WRITE32_MEMBER(hp16500_state::palette_w) |
| 62 | { |
| 63 | if (mem_mask == 0xff000000) |
| 64 | { |
| 65 | m_clutoffs = (data>>24) & 0xff; |
| 66 | } |
| 67 | else if (mem_mask == 0x00ff0000) |
| 68 | { |
| 69 | UINT8 tmpcolor = (data>>16) & 0xff; |
| 70 | |
| 71 | if ((tmpcolor & 0xf0) == 0x00) |
| 72 | { |
| 73 | tmpcolor |= (tmpcolor << 4); |
| 74 | } |
| 75 | |
| 76 | m_colors[m_count++] = tmpcolor; |
| 77 | |
| 78 | if (m_count == 3) |
| 79 | { |
| 80 | m_palette[m_clutoffs] = rgb_t(m_colors[0], m_colors[1], m_colors[2]); |
| 81 | m_clutoffs++; |
| 82 | if (m_clutoffs > 255) |
| 83 | { |
| 84 | m_clutoffs = 0; |
| 85 | } |
| 86 | m_count = 0; |
| 87 | } |
| 88 | } |
| 89 | } |
| 90 | |
| 91 | // 4 bpp |
| 92 | // addr = ((Y * 0xfc0) + 0x360) + (X * 4) |
| 48 | 93 | UINT32 hp16500_state::screen_update_hp16500(screen_device &screen, bitmap_rgb32 &bitmap, const rectangle &cliprect) |
| 49 | 94 | { |
| 95 | UINT32 *scanline; |
| 96 | int x, y; |
| 97 | UINT8 pixels; |
| 98 | |
| 99 | for (y = 0; y < 400; y++) |
| 100 | { |
| 101 | scanline = &bitmap.pix32(y); |
| 102 | |
| 103 | for (x = 0; x < 576/8; x++) |
| 104 | { |
| 105 | pixels = m_vram[(y * (288/4)) + x]; |
| 106 | |
| 107 | *scanline++ = m_palette[((pixels&0xf0000000)>>28)]; |
| 108 | *scanline++ = m_palette[((pixels&0xf000000)>>24)]; |
| 109 | *scanline++ = m_palette[((pixels&0xf00000)>>20)]; |
| 110 | *scanline++ = m_palette[((pixels&0xf0000)>>16)]; |
| 111 | *scanline++ = m_palette[((pixels&0xf000)>>12)]; |
| 112 | *scanline++ = m_palette[((pixels&0xf00)>>8)]; |
| 113 | *scanline++ = m_palette[((pixels&0xf0)>>4)]; |
| 114 | *scanline++ = m_palette[(pixels&0xf)]; |
| 115 | } |
| 116 | } |
| 117 | |
| 50 | 118 | return 0; |
| 51 | 119 | } |
| 52 | 120 | |
| r242374 | r242375 | |
|---|
| 56 | 124 | MCFG_CPU_PROGRAM_MAP(hp16500_map) |
| 57 | 125 | |
| 58 | 126 | MCFG_SCREEN_ADD("screen", RASTER) |
| 59 | | MCFG_SCREEN_RAW_PARAMS(25175000, 800, 0, 640, 525, 0, 480) |
| 60 | | MCFG_SCREEN_VIDEO_ATTRIBUTES(VIDEO_UPDATE_BEFORE_VBLANK) |
| 61 | | MCFG_SCREEN_SIZE(1024, 768) |
| 62 | | MCFG_SCREEN_VISIBLE_AREA(0, 640-1, 0, 480-1) |
| 63 | 127 | MCFG_SCREEN_UPDATE_DRIVER(hp16500_state, screen_update_hp16500) |
| 128 | MCFG_SCREEN_SIZE(576,400) |
| 129 | MCFG_SCREEN_VISIBLE_AREA(0, 576-1, 0, 400-1) |
| 130 | MCFG_SCREEN_REFRESH_RATE(60) |
| 64 | 131 | |
| 65 | | MCFG_PALETTE_ADD("palette", 256) |
| 66 | | |
| 67 | | |
| 68 | 132 | MCFG_SPEAKER_STANDARD_STEREO("lspeaker", "rspeaker") |
| 69 | 133 | MACHINE_CONFIG_END |
| 70 | 134 | |