mirror of
https://github.com/holub/mame
synced 2025-05-25 15:25:33 +03:00
Cleanups to the King Derby driver.
This commit is contained in:
Angelo Salese
parent
a102af8d5d
commit
6bfd4e2bdd
@ -1,11 +1,19 @@
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/*
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/*******************************************************************************************
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King Derby (c) 1981 Tatsumi
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driver by Andrew Gardner, Angelo Salese & Roberto Fresca
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TODO:
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- remaining video issues, priorities, sprites etc.;
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- inputs;
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- colors (probably needs a color prom);
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- add backup ram emulation;
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- unknown memories;
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- clean-ups!
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- the name "King Derby" is a raw guess, there's a chance that it uses a different name
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(but there isn't any title screen on the game?)
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============================================================================================
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file : readme.txt
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author : Stefan Lindberg
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@ -48,10 +56,7 @@ s8.g2 4096 0xad667c05 D2732D
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s9_a.ka 4096 0xca82cd81 D2732D
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sg1_b.e1 4096 0x92ef3c13 D2732D
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*/
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#define CLK_1 XTAL_20MHz
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#define CLK_2 XTAL_3_579545MHz
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*******************************************************************************************/
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#include "driver.h"
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#include "cpu/z80/z80.h"
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@ -59,6 +64,15 @@ sg1_b.e1 4096 0x92ef3c13 D2732D
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#include "machine/8255ppi.h"
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#include "sound/ay8910.h"
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#define CLK_1 XTAL_20MHz
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#define CLK_2 XTAL_3_579545MHz
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/*************************************
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*
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* Video Hardware
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*
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*************************************/
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static UINT8 *kingdrby_vram,*kingdrby_attr;
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static tilemap *sc0_tilemap,*sc0w_tilemap;
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@ -83,26 +97,12 @@ static VIDEO_START(kingdrby)
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sc0w_tilemap = tilemap_create(machine, get_sc0_tile_info,tilemap_scan_rows,8,8,32,32);
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}
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static VIDEO_UPDATE(kingdrby)
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static void draw_sprites(running_machine *machine, bitmap_t *bitmap, const rectangle *cliprect)
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{
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int count = 0;
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const rectangle *visarea = video_screen_get_visible_area(screen);
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rectangle clip;
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tilemap_set_scrollx( sc0_tilemap,0, kingdrby_vram[0x342]);
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tilemap_set_scrolly( sc0_tilemap,0, kingdrby_vram[0x341]);
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tilemap_set_scrolly( sc0w_tilemap,0, 32);
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/* maybe it needs two window tilemaps? (one at the top, the other at the bottom)*/
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clip.min_x = visarea->min_x;
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clip.max_x = 256;
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clip.min_y = 192;
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clip.max_y = visarea->max_y;
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tilemap_draw(bitmap,cliprect,sc0_tilemap,0,0);
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tilemap_draw(bitmap,&clip,sc0w_tilemap,0,0);
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/*sprites not fully understood.*/
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for(count=0;count<0x100;count+=4)
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for(count=0;count<0x48;count+=4)
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{
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int x,y,spr_offs,colour,fx,mode,dx,dy,h,w;
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@ -132,19 +132,58 @@ static VIDEO_UPDATE(kingdrby)
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{
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for(dy=0;dy<h;dy++)
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for(dx=0;dx<w;dx++)
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drawgfx(bitmap,screen->machine->gfx[0],spr_offs++,colour,1,0,(x+16*w)-dx*16,y+dy*16,cliprect,TRANSPARENCY_PEN,0);
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drawgfx(bitmap,machine->gfx[0],spr_offs++,colour,1,0,(x+16*w)-dx*16,y+dy*16,cliprect,TRANSPARENCY_PEN,0);
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}
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else
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{
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for(dy=0;dy<h;dy++)
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for(dx=0;dx<w;dx++)
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drawgfx(bitmap,screen->machine->gfx[0],spr_offs++,colour,0,0,x+dx*16,y+dy*16,cliprect,TRANSPARENCY_PEN,0);
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drawgfx(bitmap,machine->gfx[0],spr_offs++,colour,0,0,x+dx*16,y+dy*16,cliprect,TRANSPARENCY_PEN,0);
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}
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}
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}
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static VIDEO_UPDATE(kingdrby)
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{
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const rectangle *visarea = video_screen_get_visible_area(screen);
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rectangle clip;
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tilemap_set_scrollx( sc0_tilemap,0, kingdrby_vram[0x342]);
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tilemap_set_scrolly( sc0_tilemap,0, kingdrby_vram[0x341]);
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tilemap_set_scrolly( sc0w_tilemap,0, 32);
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/* maybe it needs two window tilemaps? (one at the top, the other at the bottom)*/
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clip.min_x = visarea->min_x;
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clip.max_x = 256;
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clip.min_y = 192;
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clip.max_y = visarea->max_y;
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tilemap_draw(bitmap,cliprect,sc0_tilemap,0,0);
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tilemap_draw(bitmap,&clip,sc0w_tilemap,0,0);
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draw_sprites(screen->machine,bitmap,cliprect);
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return 0;
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}
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static WRITE8_HANDLER( sc0_vram_w )
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{
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kingdrby_vram[offset] = data;
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tilemap_mark_tile_dirty(sc0_tilemap,offset);
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tilemap_mark_tile_dirty(sc0w_tilemap,offset);
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}
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static WRITE8_HANDLER( sc0_attr_w )
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{
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kingdrby_attr[offset] = data;
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tilemap_mark_tile_dirty(sc0_tilemap,offset);
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tilemap_mark_tile_dirty(sc0w_tilemap,offset);
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}
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/*************************************
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*
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* I/O (TODO)
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*
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*************************************/
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static WRITE8_DEVICE_HANDLER( outport0_w )
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{
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// printf("PPI0 port C out: %02X\n", data);
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@ -163,26 +202,11 @@ static WRITE8_DEVICE_HANDLER( outport2_w )
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// printf("PPI1 port C(upper) out: %02X\n", data);
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}
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#if 0
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static READ8_HANDLER( ff_r )
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{
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return 0xff;
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}
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#endif
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static WRITE8_HANDLER( sc0_vram_w )
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{
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kingdrby_vram[offset] = data;
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tilemap_mark_tile_dirty(sc0_tilemap,offset);
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tilemap_mark_tile_dirty(sc0w_tilemap,offset);
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}
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static WRITE8_HANDLER( sc0_attr_w )
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{
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kingdrby_attr[offset] = data;
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tilemap_mark_tile_dirty(sc0_tilemap,offset);
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tilemap_mark_tile_dirty(sc0w_tilemap,offset);
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}
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/*************************************
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*
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* Memory Map
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*
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*************************************/
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static ADDRESS_MAP_START( master_map, ADDRESS_SPACE_PROGRAM, 8 )
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AM_RANGE(0x0000, 0x2fff) AM_ROM
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@ -226,26 +250,14 @@ static ADDRESS_MAP_START( sound_io_map, ADDRESS_SPACE_IO, 8 )
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AM_RANGE(0x40, 0x41) AM_DEVWRITE(SOUND, "ay", ay8910_address_data_w)
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ADDRESS_MAP_END
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/*
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slave
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5000-5003 PPI group modes 0/0 - A & B as input, C (all) as output.
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6000-6003 PPI group modes 0/0 - B & C (lower) as input, A & C (upper) as output.
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7c00 unknown read.
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crtc: 6845 type.
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screen size: 384x272 registers 00 & 04. (value-1)
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visible area: 256x224 registers 01 & 06.
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the clocks are a guess, but is the only logical combination I found to get a reasonable vertical of ~53Hz.
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the code is stuck with last checksum calculation. both z80 are halted.
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feeding the slave 7c00 read with value !=0, the code requests something from master 3885.
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feeding both, we have unmapped slave writes to 7400-744b and 0's to 7801-780f.
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*/
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/*************************************
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*
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* PPI configuration
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*
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* 5000-5003 PPI group modes 0/0 - A & B as input, C (all) as output.
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* 6000-6003 PPI group modes 0/0 - B & C (lower) as input, A & C (upper) as output.
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*
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*************************************/
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static const ppi8255_interface ppi8255_intf[2] =
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{
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@ -270,8 +282,13 @@ static const ppi8255_interface ppi8255_intf[2] =
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}
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};
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static INPUT_PORTS_START( kingdrby )
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/*************************************
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*
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* Input Port Definitions
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*
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*************************************/
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static INPUT_PORTS_START( kingdrby )
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PORT_START("IN0") // ppi0 (5000)
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PORT_DIPNAME( 0x01, 0x01, "SYSTEM" )
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PORT_DIPSETTING( 0x01, DEF_STR( Off ) )
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@ -414,6 +431,12 @@ static INPUT_PORTS_START( kingdrby )
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PORT_DIPSETTING( 0x00, DEF_STR( On ) )
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INPUT_PORTS_END
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/*************************************
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*
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* GFX decoding
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*
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*************************************/
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static const gfx_layout layout8x8x2 =
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{
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8,8,
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@ -443,10 +466,21 @@ static const gfx_layout layout16x16x2 =
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};
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static GFXDECODE_START( kingdrby )
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GFXDECODE_ENTRY( "gfx1", 0x000000, layout16x16x2, 0, 0x40 )
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GFXDECODE_ENTRY( "gfx2", 0x000000, layout8x8x2, 0, 0x40 )
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GFXDECODE_ENTRY( "gfx1", 0x0000, layout16x16x2, 0, 0x40 )
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GFXDECODE_ENTRY( "gfx2", 0x0000, layout8x8x2, 0, 0x40 )
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GFXDECODE_END
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/**********************************************************************************************************
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*
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* MC6845 interface
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*
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* screen size: 384x272 registers 00 & 04. (value-1)
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* visible area: 256x224 registers 01 & 06.
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*
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* the clocks are a guess, but is the only logical combination I found to get a reasonable vertical of ~53Hz.
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*
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***********************************************************************************************************/
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static const mc6845_interface mc6845_intf =
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{
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"main", /* screen we are acting on */
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@ -459,6 +493,12 @@ static const mc6845_interface mc6845_intf =
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NULL /* VSYNC callback */
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};
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/*************************************
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*
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* Sound HW Config (TODO)
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*
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*************************************/
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static const ay8910_interface ay8910_config =
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{
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AY8910_LEGACY_OUTPUT,
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@ -480,15 +520,13 @@ static MACHINE_DRIVER_START( kingdrby )
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MDRV_CPU_IO_MAP(slave_io_map,0)
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MDRV_CPU_VBLANK_INT("main", irq0_line_hold)
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MDRV_CPU_ADD("sound", Z80, CLK_2) /* Or maybe it's the 20 mhz one? */
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MDRV_CPU_ADD("sound", Z80, CLK_2)
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MDRV_CPU_PROGRAM_MAP(sound_map,0)
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MDRV_CPU_IO_MAP(sound_io_map,0)
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MDRV_CPU_VBLANK_INT("main", irq0_line_hold)
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MDRV_QUANTUM_PERFECT_CPU("master")
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//MDRV_MACHINE_RESET(kingdrby)
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MDRV_PPI8255_ADD( "ppi8255_0", ppi8255_intf[0] )
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MDRV_PPI8255_ADD( "ppi8255_1", ppi8255_intf[1] )
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@ -517,34 +555,38 @@ MACHINE_DRIVER_END
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ROM_START( kingdrby )
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ROM_REGION( 0x3000, "master", 0 )
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ROM_LOAD( "im4_d.d6", 0x0000, 0x1000, CRC(20F2D999) SHA1(91DB46059F32B4791460DF3330260F4E60F016A5) )
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ROM_LOAD( "im5_d.c6", 0x1000, 0x1000, CRC(C192CECC) SHA1(63436BF3D9C1E34F6549830C8164295B7758D666) )
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ROM_LOAD( "im6_d.b6", 0x2000, 0x1000, CRC(257F4E0D) SHA1(CD61F3CF70C536AA207EBFDD28BE54AC586B5249) )
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ROM_LOAD( "im4_d.d6", 0x0000, 0x1000, CRC(20f2d999) SHA1(91db46059f32b4791460df3330260f4e60f016a5) )
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ROM_LOAD( "im5_d.c6", 0x1000, 0x1000, CRC(c192cecc) SHA1(63436bf3d9c1e34f6549830c8164295b7758d666) )
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ROM_LOAD( "im6_d.b6", 0x2000, 0x1000, CRC(257f4e0d) SHA1(cd61f3cf70c536aa207ebfdd28be54ac586b5249) )
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ROM_REGION( 0x1000, "sound", 0 )
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ROM_LOAD( "sg1_b.e1", 0x0000, 0x1000, CRC(92EF3C13) SHA1(1BF1E4106B37AADFC02822184510740E18A54D5C) )
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ROM_LOAD( "sg1_b.e1", 0x0000, 0x1000, CRC(92ef3c13) SHA1(1bf1e4106b37aadfc02822184510740e18a54d5c) )
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ROM_REGION( 0x4000, "slave", 0 )
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ROM_LOAD( "im1_yk.g1", 0x0000, 0x1000, CRC(1921605D) SHA1(0AA6F7195EA59D0080620AB02A737E5C319DD3E7) )
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ROM_LOAD( "im2_yk.f1", 0x1000, 0x1000, CRC(8504314E) SHA1(309645E17FB3149DCE57AE6844CC58652A1EEB35) )
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ROM_LOAD( "im3_yk.e1", 0x2000, 0x1000, CRC(B0E473EC) SHA1(234598548B2A2A8F53D40BC07C3B1759074B7D93) )
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ROM_LOAD( "im1_yk.g1", 0x0000, 0x1000, CRC(1921605d) SHA1(0aa6f7195ea59d0080620ab02a737e5c319dd3e7) )
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ROM_LOAD( "im2_yk.f1", 0x1000, 0x1000, CRC(8504314e) SHA1(309645e17fb3149dce57ae6844cc58652a1eeb35) )
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ROM_LOAD( "im3_yk.e1", 0x2000, 0x1000, CRC(b0e473ec) SHA1(234598548b2a2a8f53d40bc07c3b1759074b7d93) )
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ROM_COPY( "sound", 0x0000, 0x3000, 0x1000 )
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/* sprites gfxs */
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ROM_REGION( 0x8000, "gfx1", 0 )
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ROM_LOAD( "s1.d1", 0x0000, 0x1000, CRC(26974007) SHA1(5079DAF9AD7D84F935C256458060DB9497DAEF91) )
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ROM_LOAD( "s2.e1", 0x1000, 0x1000, CRC(BEDEBFA7) SHA1(5A2116ED4AF6BC4B72199017515980E4A937236C) )
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ROM_LOAD( "s3.f1", 0x2000, 0x1000, CRC(0AA59571) SHA1(5005FFDD0030E4D4C1D8033FD3C78177C0FBD1B0) )
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ROM_LOAD( "s4.g1", 0x3000, 0x1000, CRC(CCD5FB0E) SHA1(3EE4377D15E7731586B7A3457DBAE52EDAED72D3) )
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ROM_LOAD( "s5.d2", 0x4000, 0x1000, CRC(32613DF3) SHA1(21CE057C416E6F1D0A3E112D640B1CF52BA69206) )
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ROM_LOAD( "s6.e2", 0x5000, 0x1000, CRC(A151C422) SHA1(354EFAEE64C8CC457F96CBA4722F6A0DF66E14D3) )
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ROM_LOAD( "s7.f2", 0x6000, 0x1000, CRC(7CFCEE55) SHA1(590AC02941E82371D56113D052EB4D4BCDBF83B0) )
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ROM_LOAD( "s8.g2", 0x7000, 0x1000, CRC(AD667C05) SHA1(D9BDF3A125EBA2D40191B0659C2007CCBC6FD12B) )
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ROM_LOAD( "s1.d1", 0x0000, 0x1000, CRC(26974007) SHA1(5079daf9ad7d84f935c256458060db9497daef91) )
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ROM_LOAD( "s2.e1", 0x1000, 0x1000, CRC(bedebfa7) SHA1(5a2116ed4af6bc4b72199017515980e4a937236c) )
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ROM_LOAD( "s3.f1", 0x2000, 0x1000, CRC(0aa59571) SHA1(5005ffdd0030e4d4c1d8033fd3c78177c0fbd1b0) )
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ROM_LOAD( "s4.g1", 0x3000, 0x1000, CRC(ccd5fb0e) SHA1(3ee4377d15e7731586b7a3457dbae52edaed72d3) )
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ROM_LOAD( "s5.d2", 0x4000, 0x1000, CRC(32613df3) SHA1(21ce057c416e6f1d0a3e112d640b1cf52ba69206) )
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ROM_LOAD( "s6.e2", 0x5000, 0x1000, CRC(a151c422) SHA1(354efaee64c8cc457f96cba4722f6a0df66e14d3) )
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ROM_LOAD( "s7.f2", 0x6000, 0x1000, CRC(7cfcee55) SHA1(590ac02941e82371d56113d052eb4d4bcdbf83b0) )
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ROM_LOAD( "s8.g2", 0x7000, 0x1000, CRC(ad667c05) SHA1(d9bdf3a125eba2d40191b0659c2007ccbc6fd12b) )
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/* These last 2 ROMs are a good distance away on the PCB */
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/* tile gfxs */
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ROM_REGION( 0x2000, "gfx2", 0 )
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ROM_LOAD( "s9_a.k8", 0x0000, 0x1000, CRC(CA82CD81) SHA1(FDF47DF7705C8D0AE70B5A0E29B35819F3D0749A) )
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ROM_LOAD( "s10_a.l8", 0x1000, 0x1000, CRC(37B2736F) SHA1(15EF3F563AEBD1F5506135C7C01E9A1DB30A9CCC) )
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ROM_LOAD( "s9_a.k8", 0x0000, 0x1000, CRC(ca82cd81) SHA1(fdf47df7705c8d0ae70b5a0e29b35819f3d0749a) )
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ROM_LOAD( "s10_a.l8", 0x1000, 0x1000, CRC(37b2736f) SHA1(15ef3f563aebd1f5506135c7c01e9a1db30a9ccc) )
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/* color proms */
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ROM_REGION( 0x200, "proms", 0 )
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ROM_LOAD( "prom.x", 0x0000, 0x0200, NO_DUMP )
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ROM_END
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/* YEAR NAME PARENT MACHINE INPUT INIT MONITOR COMPANY FULLNAME FLAGS */
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GAME( 1981, kingdrby, 0, kingdrby, kingdrby, 0, ROT0, "Tazmi", "King Derby?", GAME_NOT_WORKING | GAME_NO_SOUND )
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GAME( 1981, kingdrby, 0, kingdrby, kingdrby, 0, ROT0, "Tazmi", "King Derby", GAME_NOT_WORKING | GAME_NO_SOUND )
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