/*************************************************************************** Atari Jaguar hardware **************************************************************************** ------------------------------------------------------------ TOM REGISTERS ------------------------------------------------------------ F00000-F0FFFF R/W xxxxxxxx xxxxxxxx Internal Registers F00000 R/W -x-xx--- xxxxxxxx MEMCON1 - memory config reg 1 -x------ -------- (CPU32 - is the CPU 32bits?) ---xx--- -------- (IOSPEED - external I/O clock cycles) -------- x------- (FASTROM - reduces ROM clock cycles) -------- -xx----- (DRAMSPEED - sets RAM clock cycles) -------- ---xx--- (ROMSPEED - sets ROM clock cycles) -------- -----xx- (ROMWIDTH - sets width of ROM: 8,16,32,64 bits) -------- -------x (ROMHI - controls ROM mapping) F00002 R/W --xxxxxx xxxxxxxx MEMCON2 - memory config reg 2 --x----- -------- (HILO - image display bit order) ---x---- -------- (BIGEND - big endian addressing?) ----xxxx -------- (REFRATE - DRAM refresh rate) -------- xx------ (DWIDTH1 - DRAM1 width: 8,16,32,64 bits) -------- --xx---- (COLS1 - DRAM1 columns: 256,512,1024,2048) -------- ----xx-- (DWIDTH0 - DRAM0 width: 8,16,32,64 bits) -------- ------xx (COLS0 - DRAM0 columns: 256,512,1024,2048) F00004 R/W -----xxx xxxxxxxx HC - horizontal count -----x-- -------- (which half of the display) ------xx xxxxxxxx (10-bit counter) F00006 R/W ----xxxx xxxxxxxx VC - vertical count ----x--- -------- (which field is being generated) -----xxx xxxxxxxx (11-bit counter) F00008 R -----xxx xxxxxxxx LPH - light pen horizontal position F0000A R -----xxx xxxxxxxx LPV - light pen vertical position F00010-F00017 R xxxxxxxx xxxxxxxx OB - current object code from the graphics processor F00020-F00023 W xxxxxxxx xxxxxxxx OLP - start of the object list F00026 W -------- -------x OBF - object processor flag F00028 W ----xxxx xxxxxxxx VMODE - video mode W ----xxx- -------- (PWIDTH1-8 - width of pixel in video clock cycles) W -------x -------- (VARMOD - enable variable color resolution) W -------- x------- (BGEN - clear line buffere to BG color) W -------- -x------ (CSYNC - enable composite sync on VSYNC) W -------- --x----- (BINC - local border color if INCEN) W -------- ---x---- (INCEN - encrustation enable) W -------- ----x--- (GENLOCK - enable genlock) W -------- -----xx- (MODE - CRY16,RGB24,DIRECT16,RGB16) W -------- -------x (VIDEN - enables video) F0002A W xxxxxxxx xxxxxxxx BORD1 - border color (red/green) F0002C W -------- xxxxxxxx BORD2 - border color (blue) F0002E W ------xx xxxxxxxx HP - horizontal period F00030 W -----xxx xxxxxxxx HBB - horizontal blanking begin F00032 W -----xxx xxxxxxxx HBE - horizontal blanking end F00034 W -----xxx xxxxxxxx HSYNC - horizontal sync F00036 W ------xx xxxxxxxx HVS - horizontal vertical sync F00038 W -----xxx xxxxxxxx HDB1 - horizontal display begin 1 F0003A W -----xxx xxxxxxxx HDB2 - horizontal display begin 2 F0003C W -----xxx xxxxxxxx HDE - horizontal display end F0003E W -----xxx xxxxxxxx VP - vertical period F00040 W -----xxx xxxxxxxx VBB - vertical blanking begin F00042 W -----xxx xxxxxxxx VBE - vertical blanking end F00044 W -----xxx xxxxxxxx VS - vertical sync F00046 W -----xxx xxxxxxxx VDB - vertical display begin F00048 W -----xxx xxxxxxxx VDE - vertical display end F0004A W -----xxx xxxxxxxx VEB - vertical equalization begin F0004C W -----xxx xxxxxxxx VEE - vertical equalization end F0004E W -----xxx xxxxxxxx VI - vertical interrupt F00050 W xxxxxxxx xxxxxxxx PIT0 - programmable interrupt timer 0 F00052 W xxxxxxxx xxxxxxxx PIT1 - programmable interrupt timer 1 F00054 W ------xx xxxxxxxx HEQ - horizontal equalization end F00058 W xxxxxxxx xxxxxxxx BG - background color F000E0 R/W ---xxxxx ---xxxxx INT1 - CPU interrupt control register ---x---- -------- (C_JERCLR - clear pending Jerry ints) ----x--- -------- (C_PITCLR - clear pending PIT ints) -----x-- -------- (C_OPCLR - clear pending object processor ints) ------x- -------- (C_GPUCLR - clear pending graphics processor ints) -------x -------- (C_VIDCLR - clear pending video timebase ints) -------- ---x---- (C_JERENA - enable Jerry ints) -------- ----x--- (C_PITENA - enable PIT ints) -------- -----x-- (C_OPENA - enable object processor ints) -------- ------x- (C_GPUENA - enable graphics processor ints) -------- -------x (C_VIDENA - enable video timebase ints) F000E2 W -------- -------- INT2 - CPU interrupt resume register F00400-F005FF R/W xxxxxxxx xxxxxxxx CLUT - color lookup table A F00600-F007FF R/W xxxxxxxx xxxxxxxx CLUT - color lookup table B F00800-F00D9F R/W xxxxxxxx xxxxxxxx LBUF - line buffer A F01000-F0159F R/W xxxxxxxx xxxxxxxx LBUF - line buffer B F01800-F01D9F R/W xxxxxxxx xxxxxxxx LBUF - line buffer currently selected ------------------------------------------------------------ F02000-F021FF R/W xxxxxxxx xxxxxxxx GPU control registers F02100 R/W xxxxxxxx xxxxxxxx G_FLAGS - GPU flags register R/W x------- -------- (DMAEN - DMA enable) R/W -x------ -------- (REGPAGE - register page) W --x----- -------- (G_BLITCLR - clear blitter interrupt) W ---x---- -------- (G_OPCLR - clear object processor int) W ----x--- -------- (G_PITCLR - clear PIT interrupt) W -----x-- -------- (G_JERCLR - clear Jerry interrupt) W ------x- -------- (G_CPUCLR - clear CPU interrupt) R/W -------x -------- (G_BLITENA - enable blitter interrupt) R/W -------- x------- (G_OPENA - enable object processor int) R/W -------- -x------ (G_PITENA - enable PIT interrupt) R/W -------- --x----- (G_JERENA - enable Jerry interrupt) R/W -------- ---x---- (G_CPUENA - enable CPU interrupt) R/W -------- ----x--- (IMASK - interrupt mask) R/W -------- -----x-- (NEGA_FLAG - ALU negative) R/W -------- ------x- (CARRY_FLAG - ALU carry) R/W -------- -------x (ZERO_FLAG - ALU zero) F02104 W -------- ----xxxx G_MTXC - matrix control register W -------- ----x--- (MATCOL - column/row major) W -------- -----xxx (MATRIX3-15 - matrix width) F02108 W ----xxxx xxxxxx-- G_MTXA - matrix address register F0210C W -------- -----xxx G_END - data organization register W -------- -----x-- (BIG_INST - big endian instruction fetch) W -------- ------x- (BIG_PIX - big endian pixels) W -------- -------x (BIG_IO - big endian I/O) F02110 R/W xxxxxxxx xxxxxxxx G_PC - GPU program counter F02114 R/W xxxxxxxx xx-xxxxx G_CTRL - GPU control/status register R xxxx---- -------- (VERSION - GPU version code) R/W ----x--- -------- (BUS_HOG - hog the bus!) R/W -----x-- -------- (G_BLITLAT - blitter interrupt latch) R/W ------x- -------- (G_OPLAT - object processor int latch) R/W -------x -------- (G_PITLAT - PIT interrupt latch) R/W -------- x------- (G_JERLAT - Jerry interrupt latch) R/W -------- -x------ (G_CPULAT - CPU interrupt latch) R/W -------- ---x---- (SINGLE_GO - single step one instruction) R/W -------- ----x--- (SINGLE_STEP - single step mode) R/W -------- -----x-- (FORCEINT0 - cause interrupt 0 on GPU) R/W -------- ------x- (CPUINT - send GPU interrupt to CPU) R/W -------- -------x (GPUGO - enable GPU execution) F02118-F0211B R/W xxxxxxxx xxxxxxxx G_HIDATA - high data register F0211C-F0211F R xxxxxxxx xxxxxxxx G_REMAIN - divide unit remainder F0211C W -------- -------x G_DIVCTRL - divide unit control W -------- -------x (DIV_OFFSET - 1=16.16 divide, 0=32-bit divide) ------------------------------------------------------------ ****************************************************************************/ #include "driver.h" #include "profiler.h" #include "machine/atarigen.h" #include "cpu/mips/r3000.h" #include "cpu/m68000/m68000.h" #include "includes/jaguar.h" #include "jagblit.h" #define LOG_BLITS 0 #define LOG_BAD_BLITS 0 #define LOG_BLITTER_STATS 0 #define LOG_BLITTER_WRITE 0 #define LOG_UNHANDLED_BLITS 0 // interrupts to main CPU: // 0 = video (on the VI scanline) // 1 = GPU (write from GPU coprocessor) // 2 = object (stop object interrupt in display list) // 3 = timer (from the PIT) // 4 = jerry /* GPU registers */ enum { MEMCON1, MEMCON2, HC, VC, LPH, LPV, GPU0, GPU1, OB_HH, OB_HL, OB_LH, OB_LL, GPU2, GPU3, GPU4, GPU5, OLP_L, OLP_H, GPU6, OBF, VMODE, BORD1, BORD2, HP, HBB, HBE, HSYNC, HVS, HDB1, HDB2, HDE, VP, VBB, VBE, VS, VDB, VDE, VEB, VEE, VI, PIT0, PIT1, HEQ, GPU7, BG, INT1 = 0xe0/2, INT2, GPU_REGS }; /************************************* * * Local variables * *************************************/ /* blitter variables */ static UINT32 blitter_regs[BLITTER_REGS]; static UINT16 gpu_regs[GPU_REGS]; static emu_timer *vi_timer; static UINT8 cpu_irq_state; static pen_t *pen_table; /************************************* * * Prototypes * *************************************/ /* from jagobj.c */ static void jagobj_init(void); static void process_object_list(mame_bitmap *bitmap, const rectangle *cliprect); /* from jagblit.c */ static void generic_blitter(UINT32 command, UINT32 a1flags, UINT32 a2flags); static void blitter_09800001_010020_010020(UINT32 command, UINT32 a1flags, UINT32 a2flags); static void blitter_09800009_000020_000020(UINT32 command, UINT32 a1flags, UINT32 a2flags); static void blitter_01800009_000028_000028(UINT32 command, UINT32 a1flags, UINT32 a2flags); static void blitter_01800001_000018_000018(UINT32 command, UINT32 a1flags, UINT32 a2flags); static void blitter_01c00001_000018_000018(UINT32 command, UINT32 a1flags, UINT32 a2flags); #ifdef MESS static void blitter_00010000_xxxxxx_xxxxxx(UINT32 command, UINT32 a1flags, UINT32 a2flags); static void blitter_01800001_xxxxxx_xxxxxx(UINT32 command, UINT32 a1flags, UINT32 a2flags); static void blitter_x1800x01_xxxxxx_xxxxxx(UINT32 command, UINT32 a1flags, UINT32 a2flags); #endif /************************************* * * Compute X/Y coordinates * *************************************/ INLINE void get_crosshair_xy(int player, int *x, int *y) { *x = ((readinputport(3 + player * 2) & 0xff) * Machine->screen[0].width) >> 8; *y = ((readinputport(4 + player * 2) & 0xff) * Machine->screen[0].height) >> 8; } /************************************* * * GPU optimization control * *************************************/ void jaguar_gpu_suspend(void) { cpunum_suspend(1, SUSPEND_REASON_SPIN, 1); } void jaguar_gpu_resume(void) { cpunum_resume(1, SUSPEND_REASON_SPIN); } /************************************* * * Main CPU interrupts * *************************************/ static void update_cpu_irq(void) { if (cpu_irq_state & gpu_regs[INT1] & 0x1f) cpunum_set_input_line(0, cojag_is_r3000 ? R3000_IRQ4 : MC68000_IRQ_6, ASSERT_LINE); else cpunum_set_input_line(0, cojag_is_r3000 ? R3000_IRQ4 : MC68000_IRQ_6, CLEAR_LINE); } static TIMER_CALLBACK( vi_callback ) { int scanline = param; cpu_irq_state |= 1; update_cpu_irq(); timer_adjust(vi_timer, video_screen_get_time_until_pos(0, scanline, 0), scanline, attotime_zero); } void jaguar_gpu_cpu_int(void) { cpu_irq_state |= 2; update_cpu_irq(); } void jaguar_dsp_cpu_int(void) { cpu_irq_state |= 16; update_cpu_irq(); } /************************************* * * Palette init * *************************************/ static void jaguar_set_palette(UINT16 vmode) { static const UINT8 red_lookup[256] = { 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 19, 0, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 64, 43, 21, 0, 102,102,102,102,102,102,102,102,102,102,102, 95, 71, 47, 23, 0, 135,135,135,135,135,135,135,135,135,135,130,104, 78, 52, 26, 0, 169,169,169,169,169,169,169,169,169,170,141,113, 85, 56, 28, 0, 203,203,203,203,203,203,203,203,203,183,153,122, 91, 61, 30, 0, 237,237,237,237,237,237,237,237,230,197,164,131, 98, 65, 32, 0, 255,255,255,255,255,255,255,255,247,214,181,148,115, 82, 49, 17, 255,255,255,255,255,255,255,255,255,235,204,173,143,112, 81, 51, 255,255,255,255,255,255,255,255,255,255,227,198,170,141,113, 85, 255,255,255,255,255,255,255,255,255,255,249,223,197,171,145,119, 255,255,255,255,255,255,255,255,255,255,255,248,224,200,177,153, 255,255,255,255,255,255,255,255,255,255,255,255,252,230,208,187, 255,255,255,255,255,255,255,255,255,255,255,255,255,255,240,221, 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255 }; static const UINT8 grn_lookup[256] = { 0, 17, 34, 51, 68, 85,102,119,136,153,170,187,204,221,238,255, 0, 19, 38, 57, 77, 96,115,134,154,173,182,211,231,250,255,255, 0, 21, 43, 64, 86,107,129,150,172,193,215,236,255,255,255,255, 0, 23, 47, 71, 96,119,142,166,190,214,238,255,255,255,255,255, 0, 26, 52, 78,104,130,156,182,208,234,255,255,255,255,255,255, 0, 28, 56, 85,113,141,170,198,226,255,255,255,255,255,255,255, 0, 30, 61, 91,122,153,183,214,244,255,255,255,255,255,255,255, 0, 32, 65, 98,131,164,197,230,255,255,255,255,255,255,255,255, 0, 32, 65, 98,131,164,197,230,255,255,255,255,255,255,255,255, 0, 30, 61, 91,122,153,183,214,244,255,255,255,255,255,255,255, 0, 28, 56, 85,113,141,170,198,226,255,255,255,255,255,255,255, 0, 26, 52, 78,104,130,156,182,208,234,255,255,255,255,255,255, 0, 23, 47, 71, 96,119,142,166,190,214,238,255,255,255,255,255, 0, 21, 43, 64, 86,107,129,150,172,193,215,236,255,255,255,255, 0, 19, 38, 57, 77, 96,115,134,154,173,182,211,231,250,255,255, 0, 17, 34, 51, 68, 85,102,119,136,153,170,187,204,221,238,255 }; static const UINT8 blu_lookup[256] = { 255,255,255,255,255,255,255,255,255,255,255,255,255,255,255,255, 255,255,255,255,255,255,255,255,255,255,255,255,255,255,240,221, 255,255,255,255,255,255,255,255,255,255,255,255,252,230,208,187, 255,255,255,255,255,255,255,255,255,255,255,248,224,200,177,153, 255,255,255,255,255,255,255,255,255,255,249,223,197,171,145,119, 255,255,255,255,255,255,255,255,255,255,227,198,170,141,113, 85, 255,255,255,255,255,255,255,255,255,235,204,173,143,112, 81, 51, 255,255,255,255,255,255,255,255,247,214,181,148,115, 82, 49, 17, 237,237,237,237,237,237,237,237,230,197,164,131, 98, 65, 32, 0, 203,203,203,203,203,203,203,203,203,183,153,122, 91, 61, 30, 0, 169,169,169,169,169,169,169,169,169,170,141,113, 85, 56, 28, 0, 135,135,135,135,135,135,135,135,135,135,130,104, 78, 52, 26, 0, 102,102,102,102,102,102,102,102,102,102,102, 95, 71, 47, 23, 0, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 68, 64, 43, 21, 0, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 34, 19, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 }; int i, colors = 0; /* switch off the mode */ switch (vmode & 0x106) { /* YCC full */ case 0x000: { /* set color 0 to black */ palette_set_color(Machine, colors++, MAKE_RGB(0, 0, 0)); /* due to the way YCC colorspace maps onto RGB, there are multiple entries for black */ /* take advantage of this so we don't have to use all 64k colors */ for (i = 0; i < 65536; i++) { UINT8 r = (red_lookup[i >> 8] * (i & 0xff)) >> 8; UINT8 g = (grn_lookup[i >> 8] * (i & 0xff)) >> 8; UINT8 b = (blu_lookup[i >> 8] * (i & 0xff)) >> 8; if (r == 0 && g == 0 && b == 0) pen_table[i] = 0; else { pen_table[i] = colors; palette_set_color(Machine, colors++, MAKE_RGB(r, g, b)); } } break; } /* YCC/RGB VARMOD */ case 0x100: case 0x107: { /* set color 0 to black */ palette_set_color(Machine, colors++, MAKE_RGB(0, 0, 0)); /* due to the way YCC colorspace maps onto RGB, there are multiple entries for black */ /* take advantage of this so we don't have to use all 64k colors */ for (i = 0; i < 65536; i++) { UINT8 r = (red_lookup[i >> 8] * (i & 0xff)) >> 8; UINT8 g = (grn_lookup[i >> 8] * (i & 0xff)) >> 8; UINT8 b = (blu_lookup[i >> 8] * (i & 0xff)) >> 8; /* if the low bit is set, treat it as 5-5-5 RGB instead */ if (i & 1) { r = (i >> 11) & 31; g = (i >> 1) & 31; b = (i >> 6) & 31; r = (r << 3) | (r >> 2); g = (g << 3) | (g >> 2); b = (b << 3) | (b >> 2); } if (r == 0 && g == 0 && b == 0) pen_table[i] = 0; else { pen_table[i] = colors; palette_set_color(Machine, colors++, MAKE_RGB(r, g, b)); } } break; } /* RGB full */ case 0x006: { /* we cheat a little here to squeeze into 65534 colors */ palette_set_color(Machine, colors++, MAKE_RGB(0, 0, 0)); palette_set_color(Machine, colors++, MAKE_RGB(0, 8, 0)); palette_set_color(Machine, colors++, MAKE_RGB(0, 16, 0)); pen_table[0] = 0; pen_table[1] = 1; pen_table[2] = 1; pen_table[3] = 2; pen_table[4] = 2; /* map the remaining colors normally */ for (i = 5; i < 65536; i++) { pen_table[i] = colors; palette_set_color_rgb(Machine, colors++, pal5bit(i >> 11), pal6bit(i >> 0), pal5bit(i >> 6)); } break; } /* others */ default: logerror("Can't handle mode %X\n", vmode); break; } } /************************************* * * Fast memory accessors * *************************************/ static UINT8 *get_jaguar_memory(UINT32 offset) { return memory_get_read_ptr(1, ADDRESS_SPACE_PROGRAM, offset); } /************************************* * * 32-bit access to the blitter * *************************************/ static void blitter_run(void) { UINT32 command = blitter_regs[B_CMD] & STATIC_COMMAND_MASK; UINT32 a1flags = blitter_regs[A1_FLAGS] & STATIC_FLAGS_MASK; UINT32 a2flags = blitter_regs[A2_FLAGS] & STATIC_FLAGS_MASK; profiler_mark(PROFILER_USER1); if (a1flags == a2flags) { if (command == 0x09800001 && a1flags == 0x010020) { blitter_09800001_010020_010020(blitter_regs[B_CMD], blitter_regs[A1_FLAGS], blitter_regs[A2_FLAGS]); return; } if (command == 0x09800009 && a1flags == 0x000020) { blitter_09800009_000020_000020(blitter_regs[B_CMD], blitter_regs[A1_FLAGS], blitter_regs[A2_FLAGS]); return; } if (command == 0x01800009 && a1flags == 0x000028) { blitter_01800009_000028_000028(blitter_regs[B_CMD], blitter_regs[A1_FLAGS], blitter_regs[A2_FLAGS]); return; } if (command == 0x01800001 && a1flags == 0x000018) { blitter_01800001_000018_000018(blitter_regs[B_CMD], blitter_regs[A1_FLAGS], blitter_regs[A2_FLAGS]); return; } if (command == 0x01c00001 && a1flags == 0x000018) { blitter_01c00001_000018_000018(blitter_regs[B_CMD], blitter_regs[A1_FLAGS], blitter_regs[A2_FLAGS]); return; } } #ifdef MESS if (command == 0x00010000) { blitter_00010000_xxxxxx_xxxxxx(blitter_regs[B_CMD], blitter_regs[A1_FLAGS], blitter_regs[A2_FLAGS]); return; } if (command == 0x01800001) { blitter_01800001_xxxxxx_xxxxxx(blitter_regs[B_CMD], blitter_regs[A1_FLAGS], blitter_regs[A2_FLAGS]); return; } if ((command & 0x0ffff0ff) == 0x01800001) { blitter_x1800x01_xxxxxx_xxxxxx(blitter_regs[B_CMD], blitter_regs[A1_FLAGS], blitter_regs[A2_FLAGS]); return; } #endif #if LOG_BLITTER_STATS { static UINT32 blitter_stats[1000][4]; static UINT64 blitter_pixels[1000]; static int blitter_count = 0; static int reps = 0; int i; for (i = 0; i < blitter_count; i++) if (blitter_stats[i][0] == (blitter_regs[B_CMD] & STATIC_COMMAND_MASK) && blitter_stats[i][1] == (blitter_regs[A1_FLAGS] & STATIC_FLAGS_MASK) && blitter_stats[i][2] == (blitter_regs[A2_FLAGS] & STATIC_FLAGS_MASK)) break; if (i == blitter_count) { blitter_stats[i][0] = blitter_regs[B_CMD] & STATIC_COMMAND_MASK; blitter_stats[i][1] = blitter_regs[A1_FLAGS] & STATIC_FLAGS_MASK; blitter_stats[i][2] = blitter_regs[A2_FLAGS] & STATIC_FLAGS_MASK; blitter_stats[i][3] = 0; blitter_pixels[i] = 0; blitter_count++; } blitter_stats[i][3]++; blitter_pixels[i] += (blitter_regs[B_COUNT] & 0xffff) * (blitter_regs[B_COUNT] >> 16); if (++reps % 100 == 99) { mame_printf_debug("---\nBlitter stats:\n"); for (i = 0; i < blitter_count; i++) mame_printf_debug(" CMD=%08X A1=%08X A2=%08X %6d times, %08X%08X pixels\n", blitter_stats[i][0], blitter_stats[i][1], blitter_stats[i][2], blitter_stats[i][3], (UINT32)(blitter_pixels[i] >> 32), (UINT32)(blitter_pixels[i])); mame_printf_debug("---\n"); } } #endif generic_blitter(blitter_regs[B_CMD], blitter_regs[A1_FLAGS], blitter_regs[A2_FLAGS]); profiler_mark(PROFILER_END); } READ32_HANDLER( jaguar_blitter_r ) { switch (offset) { case B_CMD: /* B_CMD */ return 0x00000001; default: logerror("%08X:Blitter read register @ F022%02X\n", activecpu_get_previouspc(), offset * 4); return 0; } } WRITE32_HANDLER( jaguar_blitter_w ) { COMBINE_DATA(&blitter_regs[offset]); if (offset == B_CMD) blitter_run(); #if LOG_BLITTER_WRITE logerror("%08X:Blitter write register @ F022%02X = %08X\n", activecpu_get_previouspc(), offset * 4, data); #endif } /************************************* * * 16-bit TOM register access * *************************************/ READ16_HANDLER( jaguar_tom_regs_r ) { if (offset != INT1 && offset != INT2 && offset != HC && offset != VC) logerror("%08X:TOM read register @ F00%03X\n", activecpu_get_previouspc(), offset * 2); switch (offset) { case INT1: return cpu_irq_state; case HC: return video_screen_get_hpos(0) % (Machine->screen[0].width / 2); case VC: return video_screen_get_vpos(0) * 2 + gpu_regs[VBE]; } return gpu_regs[offset]; } WRITE16_HANDLER( jaguar_tom_regs_w ) { int scanline; if (offset < GPU_REGS) { COMBINE_DATA(&gpu_regs[offset]); switch (offset) { case VI: scanline = (gpu_regs[VI] - gpu_regs[VBE]) / 2; timer_adjust(vi_timer, video_screen_get_time_until_pos(0, scanline, 0), scanline, attotime_zero); break; case INT1: cpu_irq_state &= ~(gpu_regs[INT1] >> 8); update_cpu_irq(); break; case VMODE: jaguar_set_palette(gpu_regs[VMODE]); break; } } if (offset != INT2 && offset != VI) logerror("%08X:TOM write register @ F00%03X = %04X\n", activecpu_get_previouspc(), offset * 2, data); } /************************************* * * 32-bit TOM register access * *************************************/ READ32_HANDLER( jaguar_tom_regs32_r ) { return (jaguar_tom_regs_r(offset * 2, 0) << 16) | jaguar_tom_regs_r(offset * 2 + 1, 0); } WRITE32_HANDLER( jaguar_tom_regs32_w ) { if (ACCESSING_MSW32) jaguar_tom_regs_w(offset * 2, data >> 16, mem_mask >> 16); if (ACCESSING_LSW32) jaguar_tom_regs_w(offset * 2 + 1, data, mem_mask); } /************************************* * * Gun input * *************************************/ READ32_HANDLER( cojag_gun_input_r ) { int beamx, beamy; switch (offset) { case 0: get_crosshair_xy(1, &beamx, &beamy); beamx += 52; beamy += 17; return (beamy << 16) | (beamx ^ 0x1ff); case 1: get_crosshair_xy(0, &beamx, &beamy); beamx += 52; beamy += 17; return (beamy << 16) | (beamx ^ 0x1ff); case 2: return readinputport(7) << 16; } return 0; } /************************************* * * Video system start * *************************************/ VIDEO_START( cojag ) { jagobj_init(); pen_table = auto_malloc(65536 * sizeof(pen_t)); vi_timer = timer_alloc(vi_callback); state_save_register_global_pointer(pen_table, 65536); state_save_register_global_array(blitter_regs); state_save_register_global_array(gpu_regs); state_save_register_global(cpu_irq_state); state_save_register_func_postload(update_cpu_irq); } /************************************* * * Main refresh * *************************************/ VIDEO_UPDATE( cojag ) { /* if not enabled, just blank */ if (!(gpu_regs[VMODE] & 1)) { fillbitmap(bitmap, 0, cliprect); return 0; } /* render the object list */ process_object_list(bitmap, cliprect); return 0; } /************************************* * * Object processor * *************************************/ #define INCLUDE_OBJECT_PROCESSOR #include "jagobj.c" /************************************* * * Blitter macros * *************************************/ /* generic blitters */ #define FUNCNAME generic_blitter #define COMMAND command #define A1FIXED a1flags #define A2FIXED a2flags #include "jagblit.c" #undef A2FIXED #undef A1FIXED #undef COMMAND #undef FUNCNAME /* optimized common blitters */ #define FUNCNAME blitter_09800001_010020_010020 #define COMMAND 0x09800001 #define A1FIXED 0x010020 #define A2FIXED 0x010020 #include "jagblit.c" #undef A2FIXED #undef A1FIXED #undef COMMAND #undef FUNCNAME #define FUNCNAME blitter_09800009_000020_000020 #define COMMAND 0x09800009 #define A1FIXED 0x000020 #define A2FIXED 0x000020 #include "jagblit.c" #undef A2FIXED #undef A1FIXED #undef COMMAND #undef FUNCNAME #define FUNCNAME blitter_01800009_000028_000028 #define COMMAND 0x01800009 #define A1FIXED 0x000028 #define A2FIXED 0x000028 #include "jagblit.c" #undef A2FIXED #undef A1FIXED #undef COMMAND #undef FUNCNAME #define FUNCNAME blitter_01800001_000018_000018 #define COMMAND 0x01800001 #define A1FIXED 0x000018 #define A2FIXED 0x000018 #include "jagblit.c" #undef A2FIXED #undef A1FIXED #undef COMMAND #undef FUNCNAME #define FUNCNAME blitter_01c00001_000018_000018 #define COMMAND 0x01c00001 #define A1FIXED 0x000018 #define A2FIXED 0x000018 #include "jagblit.c" #undef A2FIXED #undef A1FIXED #undef COMMAND #undef FUNCNAME #ifdef MESS #define FUNCNAME blitter_00010000_xxxxxx_xxxxxx #define COMMAND 0x00010000 #define A1FIXED a1flags #define A2FIXED a2flags #include "jagblit.c" #undef A2FIXED #undef A1FIXED #undef COMMAND #undef FUNCNAME #define FUNCNAME blitter_01800001_xxxxxx_xxxxxx #define COMMAND 0x01800001 #define A1FIXED a1flags #define A2FIXED a2flags #include "jagblit.c" #undef A2FIXED #undef A1FIXED #undef COMMAND #undef FUNCNAME #define FUNCNAME blitter_x1800x01_xxxxxx_xxxxxx #define COMMAND ((command & 0xf0000f00) | 0x01800001) #define A1FIXED a1flags #define A2FIXED a2flags #include "jagblit.c" #undef A2FIXED #undef A1FIXED #undef COMMAND #undef FUNCNAME #endif /* MESS */