mirror of
https://github.com/holub/mame
synced 2025-04-26 18:23:08 +03:00
Still not right, but a bit less glitchy than it was before, with more
stuff in the code to help figure it out. From Haze (nw)
This commit is contained in:
Scott Stone
parent
3fbddddd20
commit
f58735c99d
@ -43,7 +43,29 @@ Notes:
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Added Dip Locations based on Service Mode
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Is this based on some Seta / Taito HW design, the sprite-tilemaps look familiar
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The video system is a little weird, and looks like it was overdesigned for
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what the hardware is capable of.
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The video RAM can be viewed as 8 'banks', the first bank is the sprite 'list'
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The other video banks contain 1x32 tile strips which are the sprites.
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For every tile strip the first bank contains an x/y position, entries
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which would coincide with strips in the first bank are left blank, presumably
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due to this bank being the actual list.
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This would suggest the hardware is capable of drawing 31x32 (992) sprites,
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each made of 1x32 tile strips, however the game only ever appears to use 3
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banks of tile strips (96 sprites)
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Priority isn't understood (other attributes, sort by y pos?)
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Furthermore there are two sets of graphics, background tiles and 'sprite'
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tiles which are of different bitdepths, but are addressed in the same way.
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Tilemap hookup is just to make viewing easier, it's not used for rendering
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There is also an additional 8x8 text layer..
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*/
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@ -59,10 +81,26 @@ public:
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blackt96_state(const machine_config &mconfig, device_type type, const char *tag)
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: driver_device(mconfig, type, tag) ,
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m_tilemapram(*this, "tilemapram"),
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m_tilemapram2(*this, "tilemapram2"){ }
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m_spriteram0(*this, "spriteram0"),
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m_spriteram1(*this, "spriteram1"),
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m_spriteram2(*this, "spriteram2"),
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m_spriteram3(*this, "spriteram3"),
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m_spriteram4(*this, "spriteram4"),
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m_spriteram5(*this, "spriteram5"),
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m_spriteram6(*this, "spriteram6"),
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m_spriteram7(*this, "spriteram7")
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{
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}
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required_shared_ptr<UINT16> m_tilemapram;
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required_shared_ptr<UINT16> m_tilemapram2;
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required_shared_ptr<UINT16> m_spriteram0;
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required_shared_ptr<UINT16> m_spriteram1;
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required_shared_ptr<UINT16> m_spriteram2;
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required_shared_ptr<UINT16> m_spriteram3;
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required_shared_ptr<UINT16> m_spriteram4;
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required_shared_ptr<UINT16> m_spriteram5;
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required_shared_ptr<UINT16> m_spriteram6;
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required_shared_ptr<UINT16> m_spriteram7;
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DECLARE_WRITE16_MEMBER(blackt96_c0000_w);
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DECLARE_WRITE16_MEMBER(blackt96_80000_w);
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DECLARE_READ8_MEMBER(PIC16C5X_T0_clk_r);
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@ -71,72 +109,116 @@ public:
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DECLARE_WRITE8_MEMBER(blackt96_soundio_port01_w);
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DECLARE_READ8_MEMBER(blackt96_soundio_port02_r);
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DECLARE_WRITE8_MEMBER(blackt96_soundio_port02_w);
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DECLARE_WRITE16_MEMBER(bg_videoram0_w);
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DECLARE_WRITE16_MEMBER(bg_videoram1_w);
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DECLARE_WRITE16_MEMBER(bg_videoram2_w);
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DECLARE_WRITE16_MEMBER(bg_videoram3_w);
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DECLARE_WRITE16_MEMBER(bg_videoram4_w);
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DECLARE_WRITE16_MEMBER(bg_videoram5_w);
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DECLARE_WRITE16_MEMBER(bg_videoram6_w);
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DECLARE_WRITE16_MEMBER(bg_videoram7_w);
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UINT16* m_spriteram[8];
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tilemap_t *m_bg_tilemap[8];
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};
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#define GET_INFO( ram ) \
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blackt96_state *state = machine.driver_data<blackt96_state>(); \
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int tileno = (ram[tile_index*2+1] & 0x1fff); \
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int rgn = (ram[tile_index*2+1] & 0x2000) >> 13; \
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int flipyx = (ram[tile_index*2+1] & 0xc000)>>14; \
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int col = (ram[tile_index*2] & 0x00ff); \
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if (rgn==1) col >>=4; \
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SET_TILE_INFO(1-rgn, tileno, col, TILE_FLIPYX(flipyx)); \
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static TILE_GET_INFO( get_bg0_tile_info ) { GET_INFO(state->m_spriteram0); }
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static TILE_GET_INFO( get_bg1_tile_info ) { GET_INFO(state->m_spriteram1); }
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static TILE_GET_INFO( get_bg2_tile_info ) { GET_INFO(state->m_spriteram2); }
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static TILE_GET_INFO( get_bg3_tile_info ) { GET_INFO(state->m_spriteram3); }
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static TILE_GET_INFO( get_bg4_tile_info ) { GET_INFO(state->m_spriteram4); }
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static TILE_GET_INFO( get_bg5_tile_info ) { GET_INFO(state->m_spriteram5); }
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static TILE_GET_INFO( get_bg6_tile_info ) { GET_INFO(state->m_spriteram6); }
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static TILE_GET_INFO( get_bg7_tile_info ) { GET_INFO(state->m_spriteram7); }
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WRITE16_MEMBER(blackt96_state::bg_videoram0_w) { COMBINE_DATA(&m_spriteram0[offset]); m_bg_tilemap[0]->mark_tile_dirty(offset/2); }
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WRITE16_MEMBER(blackt96_state::bg_videoram1_w) { COMBINE_DATA(&m_spriteram1[offset]); m_bg_tilemap[1]->mark_tile_dirty(offset/2); }
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WRITE16_MEMBER(blackt96_state::bg_videoram2_w) { COMBINE_DATA(&m_spriteram2[offset]); m_bg_tilemap[2]->mark_tile_dirty(offset/2); }
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WRITE16_MEMBER(blackt96_state::bg_videoram3_w) { COMBINE_DATA(&m_spriteram3[offset]); m_bg_tilemap[3]->mark_tile_dirty(offset/2); }
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WRITE16_MEMBER(blackt96_state::bg_videoram4_w) { COMBINE_DATA(&m_spriteram4[offset]); m_bg_tilemap[4]->mark_tile_dirty(offset/2); }
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WRITE16_MEMBER(blackt96_state::bg_videoram5_w) { COMBINE_DATA(&m_spriteram5[offset]); m_bg_tilemap[5]->mark_tile_dirty(offset/2); }
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WRITE16_MEMBER(blackt96_state::bg_videoram6_w) { COMBINE_DATA(&m_spriteram6[offset]); m_bg_tilemap[6]->mark_tile_dirty(offset/2); }
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WRITE16_MEMBER(blackt96_state::bg_videoram7_w) { COMBINE_DATA(&m_spriteram7[offset]); m_bg_tilemap[7]->mark_tile_dirty(offset/2); }
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static VIDEO_START( blackt96 )
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{
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blackt96_state *state = machine.driver_data<blackt96_state>();
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state->m_bg_tilemap[0] = tilemap_create(machine, get_bg0_tile_info, tilemap_scan_cols, 16, 16, 32, 32);
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state->m_bg_tilemap[1] = tilemap_create(machine, get_bg1_tile_info, tilemap_scan_cols, 16, 16, 32, 32);
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state->m_bg_tilemap[2] = tilemap_create(machine, get_bg2_tile_info, tilemap_scan_cols, 16, 16, 32, 32);
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state->m_bg_tilemap[3] = tilemap_create(machine, get_bg3_tile_info, tilemap_scan_cols, 16, 16, 32, 32);
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state->m_bg_tilemap[4] = tilemap_create(machine, get_bg4_tile_info, tilemap_scan_cols, 16, 16, 32, 32);
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state->m_bg_tilemap[5] = tilemap_create(machine, get_bg5_tile_info, tilemap_scan_cols, 16, 16, 32, 32);
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state->m_bg_tilemap[6] = tilemap_create(machine, get_bg6_tile_info, tilemap_scan_cols, 16, 16, 32, 32);
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state->m_bg_tilemap[7] = tilemap_create(machine, get_bg7_tile_info, tilemap_scan_cols, 16, 16, 32, 32);
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state->m_spriteram[0] = state->m_spriteram0;
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state->m_spriteram[1] = state->m_spriteram1;
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state->m_spriteram[2] = state->m_spriteram2;
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state->m_spriteram[3] = state->m_spriteram3;
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state->m_spriteram[4] = state->m_spriteram4;
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state->m_spriteram[5] = state->m_spriteram5;
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state->m_spriteram[6] = state->m_spriteram6;
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state->m_spriteram[7] = state->m_spriteram7;
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}
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static void draw_strip(running_machine &machine, bitmap_ind16 &bitmap, const rectangle &cliprect, int stripnum, int xbase, int ybase, int bg)
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static void draw_strip(running_machine &machine, bitmap_ind16 &bitmap, const rectangle &cliprect, int page, int column, int bg)
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{
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blackt96_state *state = machine.driver_data<blackt96_state>();
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const gfx_element *gfxspr = machine.gfx[1];
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/* the very first 'page' in the spriteram contains the x/y positions for each tile strip */
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const gfx_element *gfxbg = machine.gfx[0];
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const gfx_element *gfxspr = machine.gfx[1];
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int base = stripnum;
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int count = 0;
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int y;
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int base = column * (0x80/2);
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base += page * 2;
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for (y=0;y<32;y++)
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/* ---- ---- ---x xxxx
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xxxx ---y yyyy yyyy */
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int xx= ((state->m_spriteram[0][base+0]&0x001f)<<4) | (state->m_spriteram[0][base+1]&0xf000)>>12;
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int yy = ((state->m_spriteram[0][base+1]&0x1ff));
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if (xx&0x100) xx-=0x200;
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yy = 0x1ff-yy;
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if (yy&0x100) yy-=0x200;
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yy -= 32;
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UINT16* base2 = state->m_spriteram[page]+column * (0x80/2);
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for (int y=0;y<32;y++)
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{
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UINT16 tile = (state->m_tilemapram2[count*2 + (base/2)+1]&0x3fff);
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UINT16 flipx = (state->m_tilemapram2[count*2 + (base/2)+1]&0x4000);
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UINT16 colour = (state->m_tilemapram2[count*2 + (base/2)]&0x00ff);
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/* -Xtt tttt tttt tttt
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---- ---- cccc cccc */
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UINT16 tile = (base2[y*2+1]&0x3fff);
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UINT16 flipx = (base2[y*2+1]&0x4000);
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UINT16 colour = (base2[y*2]&0x00ff);
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if (tile&0x2000)
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{
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if (bg) drawgfx_transpen(bitmap,cliprect,gfxbg,tile&0x1fff,colour>>4,flipx,0,xbase,ybase+y*16,0);
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if (bg) drawgfx_transpen(bitmap,cliprect,gfxbg,tile&0x1fff,colour>>4,flipx,0,xx,yy+y*16,0);
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}
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else
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{
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if (!bg) drawgfx_transpen(bitmap,cliprect,gfxspr,tile&0x1fff,colour,flipx,0,xbase,ybase+y*16,0);
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if (!bg) drawgfx_transpen(bitmap,cliprect,gfxspr,tile&0x1fff,colour,flipx,0,xx,yy+y*16,0);
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}
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count++;
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}
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}
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static void draw_main(running_machine &machine, bitmap_ind16 &bitmap, const rectangle &cliprect, int bg)
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{
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blackt96_state *state = machine.driver_data<blackt96_state>();
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int x;
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for (x=(0x1000/2)-2;x>=0;x-=2)
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{
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int xx;
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int yy;
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int s = 0;
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xx= ((state->m_tilemapram2[x+0]&0x001f)<<4) | (state->m_tilemapram2[x+1]&0xf000)>>12;
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yy = ((state->m_tilemapram2[x+1]&0x1ff));
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if (xx&0x100) xx-=0x200;
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yy = 0x1ff-yy;
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if (yy&0x100) yy-=0x200;
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s = x*2;
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s &=0xfff;
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s += (x&7)*0x800;
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draw_strip(machine,bitmap,cliprect,s,xx,yy,bg);
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}
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}
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static SCREEN_UPDATE_IND16( blackt96 )
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{
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@ -147,11 +229,29 @@ static SCREEN_UPDATE_IND16( blackt96 )
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bitmap.fill(get_black_pen(screen.machine()), cliprect);
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draw_main(screen.machine(),bitmap,cliprect,1);
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draw_main(screen.machine(),bitmap,cliprect,0);
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int strip;
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int page;
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for (strip=0;strip<32;strip++)
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{
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for (page = 7;page>0;page--)
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{
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draw_strip(screen.machine(), bitmap, cliprect, page, strip, 1);
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}
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}
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for (strip=0;strip<32;strip++)
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{
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for (page = 7;page>0;page--)
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{
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draw_strip(screen.machine(), bitmap, cliprect, page, strip, 0);
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}
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}
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/* Text Layer */
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count = 0;
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for (x=0;x<64;x++)
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{
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for (y=0;y<32;y++)
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@ -188,7 +288,16 @@ static ADDRESS_MAP_START( blackt96_map, AS_PROGRAM, 16, blackt96_state )
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AM_RANGE(0x0f0008, 0x0f0009) AM_READ_PORT("DSW2")
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AM_RANGE(0x100000, 0x100fff) AM_RAM AM_SHARE("tilemapram") // text tilemap
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AM_RANGE(0x200000, 0x207fff) AM_RAM AM_SHARE("tilemapram2")// sprite list + sprite tilemaps
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AM_RANGE(0x200000, 0x200fff) AM_RAM_WRITE(bg_videoram0_w) AM_SHARE("spriteram0")
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AM_RANGE(0x201000, 0x201fff) AM_RAM_WRITE(bg_videoram1_w) AM_SHARE("spriteram1")
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AM_RANGE(0x202000, 0x202fff) AM_RAM_WRITE(bg_videoram2_w) AM_SHARE("spriteram2")
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AM_RANGE(0x203000, 0x203fff) AM_RAM_WRITE(bg_videoram3_w) AM_SHARE("spriteram3")
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AM_RANGE(0x204000, 0x204fff) AM_RAM_WRITE(bg_videoram4_w) AM_SHARE("spriteram4")
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AM_RANGE(0x205000, 0x205fff) AM_RAM_WRITE(bg_videoram5_w) AM_SHARE("spriteram5")
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AM_RANGE(0x206000, 0x206fff) AM_RAM_WRITE(bg_videoram6_w) AM_SHARE("spriteram6")
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AM_RANGE(0x207000, 0x207fff) AM_RAM_WRITE(bg_videoram7_w) AM_SHARE("spriteram7")
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AM_RANGE(0x400000, 0x400fff) AM_RAM_WRITE(paletteram_xxxxRRRRGGGGBBBB_word_w) AM_SHARE("paletteram")
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AM_RANGE(0xc00000, 0xc03fff) AM_RAM // main ram
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@ -435,7 +544,7 @@ static const gfx_layout blackt962_layout =
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};
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static const gfx_layout blackt963_layout =
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static const gfx_layout blackt96_text_layout =
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{
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8,8,
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RGN_FRAC(1,1),
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@ -449,7 +558,7 @@ static const gfx_layout blackt963_layout =
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static GFXDECODE_START( blackt96 )
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GFXDECODE_ENTRY( "gfx1", 0, blackt96_layout, 0x0, 0x10 )
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GFXDECODE_ENTRY( "gfx2", 0, blackt962_layout, 0x0, 0x80 )
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GFXDECODE_ENTRY( "gfx3", 0, blackt963_layout, 0x0, 0x80 )
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GFXDECODE_ENTRY( "gfx3", 0, blackt96_text_layout, 0x0, 0x80 )
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GFXDECODE_END
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