mirror of
https://github.com/holub/mame
synced 2025-10-08 09:30:17 +03:00
Rewritten the Super Crowns Golf video routines, game gfxs are now heavily improved [Angelo Salese]
This commit is contained in:
Angelo Salese
parent
f697c51161
commit
df67f6eb2b
@ -5,8 +5,8 @@
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by Tomasz Slanina & Angelo Salese
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TODO:
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- fix input port $06 and remove the patch, it doesn't seem directly connected;
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- fix the background blitter/framebuffer, needs rewriting;
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- remove the patch and understand what needs to be modified for the gfxs, game
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doesn't crash anymore;
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- inputs (some kind of ad-stick / pedal);
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************************************************************************************/
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@ -18,11 +18,12 @@
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static tilemap *suprgolf_tilemap;
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static UINT8 *suprgolf_bg_vram;
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static UINT8 *suprgolf_bg_pen;
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static UINT16 *suprgolf_bg_fb,*suprgolf_fg_fb;
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static int suprgolf_rom_bank;
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static UINT8 suprgolf_bg_bank;
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static UINT8 suprgolf_vreg;
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static UINT8 suprgolf_vreg_bank;
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static UINT8 msm5205next,msm_nmi_mask;
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static UINT8 suprgolf_vreg_pen;
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static TILE_GET_INFO( get_tile_info )
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{
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@ -36,127 +37,57 @@ static TILE_GET_INFO( get_tile_info )
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0);
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}
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static READ8_HANDLER( rom_bank_select_r )
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{
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return suprgolf_rom_bank;
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}
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static WRITE8_HANDLER( rom_bank_select_w )
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{
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UINT8 *region_base = memory_region(space->machine, "user1");
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suprgolf_rom_bank = data;
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//popmessage("%08x %02x",((data & 0x3f) * 0x4000),data);
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mame_printf_debug("ROM_BANK 0x8000 - %X @%X\n",data,cpu_get_previouspc(space->cpu));
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memory_set_bankptr(space->machine, 2, region_base + (data&0x3f ) * 0x4000);
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msm_nmi_mask = data & 0x40;
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flip_screen_set(space->machine, data & 0x80);
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}
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static WRITE8_HANDLER( rom2_bank_select_w )
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{
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UINT8 *region_base = memory_region(space->machine, "user2");
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mame_printf_debug("ROM_BANK 0x4000 - %X @%X\n",data,cpu_get_previouspc(space->cpu));
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// if(data == 0) data = 1; //test hack
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memory_set_bankptr(space->machine, 1, region_base + (data&0x0f ) * 0x4000);
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if(data & 0xf0)
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printf("Rom bank select 2 with data %02x activated\n",data);
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}
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static MACHINE_RESET( suprgolf )
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{
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msm_nmi_mask = 0;
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}
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static VIDEO_START( suprgolf )
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{
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suprgolf_tilemap = tilemap_create( machine, get_tile_info,tilemap_scan_rows,8,8,32,32 );
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paletteram = auto_alloc_array(machine, UINT8, 0x1000);
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suprgolf_bg_vram = auto_alloc_array(machine, UINT8, 0x2000*0x20);
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suprgolf_bg_pen = auto_alloc_array(machine, UINT8, 0x2000*0x20);
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suprgolf_bg_fb = auto_alloc_array(machine, UINT16, 0x4000*0x20);
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suprgolf_fg_fb = auto_alloc_array(machine, UINT16, 0x4000*0x20);
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tilemap_set_transparent_pen(suprgolf_tilemap,15);
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}
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/* TODO: fix this.*/
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static void bg_draw(running_machine *machine, bitmap_t *bitmap, const rectangle *cliprect,UINT8 starting_offs)
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{
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int x,y,trans;
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UINT32 count;
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UINT16 alpha_val;
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count = starting_offs<<16;
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trans = starting_offs;
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for(y=0;y<256;y++)
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{
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for(x=0;x<512;x+=2)
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{
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UINT16 color;
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color = ((suprgolf_bg_vram[count] & 0xf0)>>4);
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if(suprgolf_bg_pen[count] & 0x80)
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color |= ((suprgolf_bg_pen[count] & 0x7f)<<4);
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else
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{
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/* TODO */
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color |= ((suprgolf_bg_pen[count] & 0x7f)<<4);
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//color |= 0x73<<4;//((suprgolf_bg_vram[count+0x10000] & 0x0f)<<4);
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}
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alpha_val = 0;//(paletteram[color*2]+256*paletteram[color*2+1]) & 0x8000;
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if((x+1) >= 0 && (x+1) < 256 && (!(alpha_val)))
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{
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if(trans)
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{
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if((suprgolf_bg_vram[count] & 0xf0) != 0xf0)
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*BITMAP_ADDR16(bitmap, y, (x+1)) = machine->pens[(color & 0x7ff)];
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}
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else
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*BITMAP_ADDR16(bitmap, y, (x+1)) = machine->pens[(color & 0x7ff)];
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}
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color = (suprgolf_bg_vram[count] & 0x0f);
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if(suprgolf_bg_pen[count] & 0x80)
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color |= ((suprgolf_bg_pen[count] & 0x7f)<<4);
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else
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{
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/* TODO */
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color |= ((suprgolf_bg_pen[count] & 0x7f)<<4);
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//color |= 0x73<<4;//((suprgolf_bg_vram[count+0x10000] & 0x0f)<<4);
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}
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alpha_val = 0;//(paletteram[color*2]+256*paletteram[color*2+1]) & 0x8000;
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if(x >= 0 && x < 256 && (!(alpha_val)))
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{
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if(trans)
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{
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if((suprgolf_bg_vram[count] & 0x0f) != 0x0f)
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*BITMAP_ADDR16(bitmap, y, x) = machine->pens[(color & 0x7ff)];
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}
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else
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*BITMAP_ADDR16(bitmap, y, x) = machine->pens[(color & 0x7ff)];
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}
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count++;
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}
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}
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}
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static VIDEO_UPDATE( suprgolf )
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{
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int x,y,count,color;
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bitmap_fill(bitmap, cliprect, get_black_pen(screen->machine));
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bg_draw(screen->machine,bitmap,cliprect,0);
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{
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count = 0;
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for(y=0;y<256;y++)
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{
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for(x=0;x<512;x++)
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{
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color = suprgolf_bg_fb[count];
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if(x <= cliprect->max_x && y <= cliprect->max_y)
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*BITMAP_ADDR16(bitmap, y, x) = screen->machine->pens[(color & 0x7ff)];
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count++;
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}
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}
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}
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{
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count = 0;
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for(y=0;y<256;y++)
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{
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for(x=0;x<512;x++)
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{
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color = suprgolf_fg_fb[count];
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if(((suprgolf_fg_fb[count] & 0x0f) != 0x0f) && (x <= cliprect->max_x && y <= cliprect->max_y))
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*BITMAP_ADDR16(bitmap, y, x) = screen->machine->pens[(color & 0x7ff)];
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count++;
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}
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}
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}
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tilemap_draw(bitmap,cliprect,suprgolf_tilemap,0,0);
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bg_draw(screen->machine,bitmap,cliprect,2);
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return 0;
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}
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@ -195,13 +126,13 @@ static WRITE8_HANDLER( suprgolf_videoram_w )
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static READ8_HANDLER( suprgolf_vregs_r )
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{
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return suprgolf_vreg;
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return suprgolf_vreg_bank;
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}
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static WRITE8_HANDLER( suprgolf_vregs_w )
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{
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//bits 0,1,2 and probably 3 controls the background vram banking
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suprgolf_vreg = data;
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suprgolf_vreg_bank = data;
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palette_switch = (data & 0x80);
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suprgolf_bg_bank = (data & 0x1f);
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@ -209,8 +140,6 @@ static WRITE8_HANDLER( suprgolf_vregs_w )
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// printf("Video regs with data %02x activated\n",data);
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}
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static UINT8 pen;
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static READ8_HANDLER( suprgolf_bg_vram_r )
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{
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return suprgolf_bg_vram[offset+suprgolf_bg_bank*0x2000];
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@ -219,27 +148,50 @@ static READ8_HANDLER( suprgolf_bg_vram_r )
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static WRITE8_HANDLER( suprgolf_bg_vram_w )
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{
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static UINT8 hi_nibble,lo_nibble;
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static UINT8 hi_dirty_dot,lo_dirty_dot; // helpers
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hi_nibble = data & 0xf0;
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lo_nibble = data & 0x0f;
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hi_dirty_dot = 1;
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lo_dirty_dot = 1;
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if(hi_nibble == 0xf0)
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{
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hi_nibble = suprgolf_bg_vram[offset+suprgolf_bg_bank*0x2000] & 0xf0;
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if(!(suprgolf_vreg_pen & 0x80) && (!(suprgolf_bg_bank & 0x10)))
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hi_dirty_dot = 0;
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}
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if(lo_nibble == 0x0f)
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{
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lo_nibble = suprgolf_bg_vram[offset+suprgolf_bg_bank*0x2000] & 0x0f;
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if(!(suprgolf_vreg_pen & 0x80) && (!(suprgolf_bg_bank & 0x10)))
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lo_dirty_dot = 0;
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}
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if(pen & 0x80)
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if(suprgolf_vreg_pen & 0x80 || suprgolf_bg_bank & 0x10)
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suprgolf_bg_vram[offset+suprgolf_bg_bank*0x2000] = data;
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else
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suprgolf_bg_vram[offset+suprgolf_bg_bank*0x2000] = hi_nibble|lo_nibble;
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suprgolf_bg_pen[offset+suprgolf_bg_bank*0x2000] = pen;
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if(suprgolf_bg_bank & 0x10)
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{
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if(hi_dirty_dot)
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suprgolf_fg_fb[(offset+(suprgolf_bg_bank & 0x0f)*0x2000)*2+1] = (suprgolf_vreg_pen & 0x7f)<<4 | ((suprgolf_bg_vram[offset+suprgolf_bg_bank*0x2000] & 0xf0)>>4);
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if(lo_dirty_dot)
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suprgolf_fg_fb[(offset+(suprgolf_bg_bank & 0x0f)*0x2000)*2+0] = (suprgolf_vreg_pen & 0x7f)<<4 | ((suprgolf_bg_vram[offset+suprgolf_bg_bank*0x2000] & 0x0f)>>0);
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}
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else
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{
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if(hi_dirty_dot)
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suprgolf_bg_fb[(offset+(suprgolf_bg_bank & 0x0f)*0x2000)*2+1] = (suprgolf_vreg_pen & 0x7f)<<4 | ((suprgolf_bg_vram[offset+suprgolf_bg_bank*0x2000] & 0xf0)>>4);
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if(lo_dirty_dot)
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suprgolf_bg_fb[(offset+(suprgolf_bg_bank & 0x0f)*0x2000)*2+0] = (suprgolf_vreg_pen & 0x7f)<<4 | ((suprgolf_bg_vram[offset+suprgolf_bg_bank*0x2000] & 0x0f)>>0);
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}
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}
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/* maybe bit 7 isn't actually for the pen? */
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static WRITE8_HANDLER( suprgolf_pen_w )
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{
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pen = data;
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suprgolf_vreg_pen = data;
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}
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static WRITE8_HANDLER( adpcm_data_w )
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@ -247,6 +199,37 @@ static WRITE8_HANDLER( adpcm_data_w )
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msm5205next = data;
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}
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static READ8_HANDLER( rom_bank_select_r )
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{
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return suprgolf_rom_bank;
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}
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static WRITE8_HANDLER( rom_bank_select_w )
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{
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UINT8 *region_base = memory_region(space->machine, "user1");
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suprgolf_rom_bank = data;
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//popmessage("%08x %02x",((data & 0x3f) * 0x4000),data);
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mame_printf_debug("ROM_BANK 0x8000 - %X @%X\n",data,cpu_get_previouspc(space->cpu));
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memory_set_bankptr(space->machine, 2, region_base + (data&0x3f ) * 0x4000);
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msm_nmi_mask = data & 0x40;
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flip_screen_set(space->machine, data & 0x80);
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}
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static WRITE8_HANDLER( rom2_bank_select_w )
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{
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UINT8 *region_base = memory_region(space->machine, "user2");
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mame_printf_debug("ROM_BANK 0x4000 - %X @%X\n",data,cpu_get_previouspc(space->cpu));
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// if(data == 0) data = 1; //test hack
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memory_set_bankptr(space->machine, 1, region_base + (data&0x0f ) * 0x4000);
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if(data & 0xf0)
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printf("Rom bank select 2 with data %02x activated\n",data);
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}
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static ADDRESS_MAP_START( main_map, ADDRESS_SPACE_PROGRAM, 8 )
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AM_RANGE(0x0000, 0x3fff) AM_ROM
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AM_RANGE(0x4000, 0x7fff) AM_ROMBANK(1)
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@ -484,6 +467,11 @@ static GFXDECODE_START( suprgolf )
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GFXDECODE_ENTRY( "gfx1", 0, gfxlayout, 0, 0x80 )
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GFXDECODE_END
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static MACHINE_RESET( suprgolf )
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{
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msm_nmi_mask = 0;
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}
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static MACHINE_DRIVER_START( suprgolf )
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/* basic machine hardware */
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MDRV_CPU_ADD("maincpu", Z80,4000000) /* guess */
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@ -505,7 +493,7 @@ static MACHINE_DRIVER_START( suprgolf )
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MDRV_SCREEN_VISIBLE_AREA(0, 255, 0, 191)
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MDRV_GFXDECODE(suprgolf)
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MDRV_PALETTE_LENGTH(0x1000)
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MDRV_PALETTE_LENGTH(0x800)
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/* sound hardware */
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MDRV_SPEAKER_STANDARD_MONO("mono")
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