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Cool Riders: added an hack for the SH-2,fixed some irqs and some memory maps/ram sharing.

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Got to the point that area 0x03e00000 on the SH-2 loads some DMA-style tables.

(and this is going to be REALLY nasty to do without docs...)
This commit is contained in:
Angelo Salese 2008-12-02 22:43:21 +00:00
parent 085f64656a
commit 509bb082fb
1 changed files with 118 additions and 21 deletions
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139
src/mame/drivers/coolridr.c
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@ -4,6 +4,8 @@ Sega System H1
preliminary preliminary
22 Aug 2004 - Basic skeleton driver, loads some roms doesn't run the right code yet 22 Aug 2004 - Basic skeleton driver, loads some roms doesn't run the right code yet
2 Dec 2008 - Added an hack for the SH-2,fixed some irqs and some memory maps/ram sharing.
Got to the point that area 0x03e00000 on the SH-2 loads some DMA-style tables.
Known Games on this Platform Known Games on this Platform
Cool Riders Cool Riders
@ -51,6 +53,8 @@ SEGA CUSTOM IC :
#include "deprecat.h" #include "deprecat.h"
#include "sound/scsp.h" #include "sound/scsp.h"
static UINT32* sysh1_workram_h,*h1_ioga,*framebuffer_data,*framebuffer_vram;
/* video */ /* video */
static VIDEO_START(coolridr) static VIDEO_START(coolridr)
@ -64,7 +68,68 @@ static VIDEO_UPDATE(coolridr)
/* end video */ /* end video */
static UINT32* sysh1_workram_h; static READ32_HANDLER(sysh1_ioga_r)
{
switch(offset)
{
case 0x08/4:
{
static UINT8 vblank = 0;
vblank^=1;
return (h1_ioga[offset] & 0xfdffffff) | (vblank<<25);
}
}
return h1_ioga[offset];
}
static WRITE32_HANDLER(sysh1_ioga_w)
{
COMBINE_DATA(&h1_ioga[offset]);
}
#ifdef UNUSED_FUNCTION
static WRITE32_HANDLER( paletteram32_sysh1_w )
{
int r,g,b;
COMBINE_DATA(&paletteram32[offset]);
b = ((paletteram32[offset] & 0x00007c00) >> 10);
g = ((paletteram32[offset] & 0x000003e0) >> 5);
r = ((paletteram32[offset] & 0x0000001f) >> 0);
palette_set_color_rgb(space->machine,(offset*2)+1,pal5bit(r),pal5bit(g),pal5bit(b));
b = ((paletteram32[offset] & 0x7c000000) >> 26);
g = ((paletteram32[offset] & 0x03e00000) >> 21);
r = ((paletteram32[offset] & 0x001f0000) >> 16);
palette_set_color_rgb(space->machine,offset*2,pal5bit(r),pal5bit(g),pal5bit(b));
}
static WRITE32_HANDLER( sysh1_dmac_w )
{
static UINT32 src,dst,size;
COMBINE_DATA(&dma_data[offset]);
if(offset == 0x10/4)
src = dma_data[offset] & 0x7fffff0;
if(offset == 0x14/4)
{
dst = dma_data[offset] & 0x7fffff0;
if(dma_data[offset] & 0x40000000)
{
for(size=0;size<0x800;size+=4)
{
program_write_dword(dst,program_read_dword(src));
dst+=4;
src+=4;
}
popmessage("!");
}
}
}
#endif
//UINT16* sysh1_soundram; //UINT16* sysh1_soundram;
// what's wrong: // what's wrong:
@ -74,19 +139,43 @@ static UINT32* sysh1_workram_h;
static ADDRESS_MAP_START( system_h1_map, ADDRESS_SPACE_PROGRAM, 32 ) static ADDRESS_MAP_START( system_h1_map, ADDRESS_SPACE_PROGRAM, 32 )
AM_RANGE(0x00000000, 0x000fffff) AM_ROM AM_SHARE(1) AM_RANGE(0x00000000, 0x000fffff) AM_ROM AM_SHARE(1)
AM_RANGE(0x03f00000, 0x03f0ffff) AM_RAM // either RAM or registers, not sure /*WARNING: boundaries of these two are WRONG!*/
AM_RANGE(0x03e00000, 0x03e0ffff) AM_RAM AM_BASE(&framebuffer_vram)/*Buffer VRAM Chains*/
AM_RANGE(0x03e10000, 0x03e11fff) AM_RAM AM_BASE(&framebuffer_data)/*Buffer data should go here*/
AM_RANGE(0x03f00000, 0x03f0ffff) AM_RAM AM_SHARE(3) /*Communication area RAM*/
// AM_RANGE(0x04000000, 0x0400001f) AM_RAM /*???*/
AM_RANGE(0x04000000, 0x0400ffff) AM_RAM /*dunno what it is,might be palette RAM*/
AM_RANGE(0x06000000, 0x060fffff) AM_RAM AM_BASE(&sysh1_workram_h) AM_RANGE(0x06000000, 0x060fffff) AM_RAM AM_BASE(&sysh1_workram_h)
AM_RANGE(0x20000000, 0x200fffff) AM_ROM AM_SHARE(1) AM_RANGE(0x20000000, 0x200fffff) AM_ROM AM_SHARE(1)
AM_RANGE(0x60000000, 0x600003ff) AM_WRITENOP
ADDRESS_MAP_END ADDRESS_MAP_END
static ADDRESS_MAP_START( coolridr_submap, ADDRESS_SPACE_PROGRAM, 32 ) static ADDRESS_MAP_START( coolridr_submap, ADDRESS_SPACE_PROGRAM, 32 )
AM_RANGE(0x00000000, 0x0001ffff) AM_ROM AM_SHARE(2) AM_RANGE(0x00000000, 0x0001ffff) AM_ROM AM_SHARE(2)
AM_RANGE(0x01000000, 0x0100ffff) AM_RAM AM_RANGE(0x01000000, 0x0100ffff) AM_RAM
AM_RANGE(0x03008900, 0x03008903) AM_RAM /*???*/
AM_RANGE(0x03100400, 0x03100403) AM_RAM /*irq enable?*/
AM_RANGE(0x03208900, 0x03208903) AM_RAM /*???*/
AM_RANGE(0x03300400, 0x03300403) AM_RAM /*irq enable?*/
AM_RANGE(0x04000000, 0x0400003f) AM_READWRITE(sysh1_ioga_r,sysh1_ioga_w) AM_BASE(&h1_ioga) /*input area?*/
AM_RANGE(0x04200000, 0x0420003f) AM_RAM /*???*/
AM_RANGE(0x05000000, 0x05000fff) AM_RAM
AM_RANGE(0x05200000, 0x052001ff) AM_RAM AM_RANGE(0x05200000, 0x052001ff) AM_RAM
AM_RANGE(0x05300000, 0x0530ffff) AM_RAM AM_RANGE(0x05300000, 0x0530ffff) AM_RAM AM_SHARE(3) /*Communication area RAM*/
AM_RANGE(0x05ff0000, 0x05ffffff) AM_RAM /*???*/
AM_RANGE(0x06000000, 0x06000fff) AM_RAM AM_RANGE(0x06000000, 0x06000fff) AM_RAM
AM_RANGE(0x06100000, 0x06100fff) AM_RAM
AM_RANGE(0x06200000, 0x06200fff) AM_RAM
AM_RANGE(0x07fff000, 0x07ffffff) AM_RAM AM_RANGE(0x07fff000, 0x07ffffff) AM_RAM
AM_RANGE(0x20000000, 0x2001ffff) AM_ROM AM_SHARE(2) AM_RANGE(0x20000000, 0x2001ffff) AM_ROM AM_SHARE(2)
AM_RANGE(0x60000000, 0x600003ff) AM_WRITENOP
ADDRESS_MAP_END ADDRESS_MAP_END
// SH-1 or SH-2 almost certainly copies the program down to here: the ROM containing the program is 32-bit wide and the 68000 is 16-bit // SH-1 or SH-2 almost certainly copies the program down to here: the ROM containing the program is 32-bit wide and the 68000 is 16-bit
@ -125,32 +214,30 @@ static GFXDECODE_START( coolridr )
GFXDECODE_END GFXDECODE_END
// IRQs 2 & 3 are valid on SH-2 // IRQs 4 & 6 are valid on SH-2
static INTERRUPT_GEN( system_h1 ) static INTERRUPT_GEN( system_h1 )
{ {
if (cpu_getiloops(device)) // if (cpu_getiloops(device))
cpu_set_input_line(device, 4, HOLD_LINE); // cpu_set_input_line(device, 4, HOLD_LINE);
else // else
cpu_set_input_line(device, 3, HOLD_LINE); // cpu_set_input_line(device, 6, HOLD_LINE);
} }
// not sure on SH-1 //IRQs 10,12 and 14 are valid on SH-1 instead
static INTERRUPT_GEN( system_h1_sub ) static INTERRUPT_GEN( system_h1_sub )
{ {
if (cpu_getiloops(device)) switch(cpu_getiloops(device))
{ {
// cpu_set_input_line(device, 4, HOLD_LINE); case 0:cpu_set_input_line(device, 0xa, HOLD_LINE); break;
} case 1:cpu_set_input_line(device, 0xc, HOLD_LINE); break;
else case 2:cpu_set_input_line(device, 0xe, HOLD_LINE); break;
{
// cpu_set_input_line(device, 3, HOLD_LINE);
} }
} }
static MACHINE_RESET ( coolridr ) static MACHINE_RESET ( coolridr )
{ {
// cpu_set_input_line(machine->cpu[0], INPUT_LINE_HALT, ASSERT_LINE); cpu_set_input_line(machine->cpu[0], INPUT_LINE_HALT, ASSERT_LINE);
cpu_set_input_line(machine->cpu[1], INPUT_LINE_HALT, ASSERT_LINE); cpu_set_input_line(machine->cpu[1], INPUT_LINE_HALT, ASSERT_LINE);
} }
@ -165,19 +252,18 @@ static MACHINE_DRIVER_START( coolridr )
MDRV_CPU_ADD("sub", SH1, 8000000) // SH7032 HD6417032F20!! ?? mhz MDRV_CPU_ADD("sub", SH1, 8000000) // SH7032 HD6417032F20!! ?? mhz
MDRV_CPU_PROGRAM_MAP(coolridr_submap,0) MDRV_CPU_PROGRAM_MAP(coolridr_submap,0)
MDRV_CPU_VBLANK_INT_HACK(system_h1_sub, 2) MDRV_CPU_VBLANK_INT_HACK(system_h1_sub, 3)
MDRV_GFXDECODE(coolridr) MDRV_GFXDECODE(coolridr)
MDRV_SCREEN_ADD("main", RASTER) MDRV_SCREEN_ADD("main", RASTER)
MDRV_SCREEN_REFRESH_RATE(60) MDRV_SCREEN_REFRESH_RATE(60)
MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0)) MDRV_SCREEN_VBLANK_TIME(ATTOSECONDS_IN_USEC(0))
MDRV_SCREEN_FORMAT(BITMAP_FORMAT_INDEXED16) MDRV_SCREEN_FORMAT(BITMAP_FORMAT_RGB32)
MDRV_SCREEN_SIZE(64*8, 64*8) MDRV_SCREEN_SIZE(64*8, 64*8)
MDRV_SCREEN_VISIBLE_AREA(0*8, 64*8-1, 0*8, 64*8-1) MDRV_SCREEN_VISIBLE_AREA(0*8, 64*8-1, 0*8, 64*8-1)
MDRV_PALETTE_LENGTH(0x2000) MDRV_PALETTE_LENGTH(0x10000)
MDRV_MACHINE_RESET(coolridr) MDRV_MACHINE_RESET(coolridr)
MDRV_VIDEO_START(coolridr) MDRV_VIDEO_START(coolridr)
@ -226,4 +312,15 @@ ROM_START( coolridr )
ROMX_LOAD( "mp17649.10",0x0000009, 0x0200000, CRC(567fbc0a) SHA1(3999c99b26f13d97ac1c58de00a44049ee7775fd), ROM_SKIP(9) ) ROMX_LOAD( "mp17649.10",0x0000009, 0x0200000, CRC(567fbc0a) SHA1(3999c99b26f13d97ac1c58de00a44049ee7775fd), ROM_SKIP(9) )
ROM_END ROM_END
GAME( 1995, coolridr, 0, coolridr, 0, 0, ROT0, "Sega", "Cool Riders",GAME_NOT_WORKING|GAME_NO_SOUND ) /*TODO: there must be an irq line with custom vector located somewhere that writes to here...*/
static READ32_HANDLER( coolridr_hack_r )
{
return 0;
}
static DRIVER_INIT( coolridr )
{
memory_install_read32_handler(cpu_get_address_space(machine->cpu[0], ADDRESS_SPACE_PROGRAM), 0x60d88a4, 0x060d88a7, 0, 0, coolridr_hack_r );
}
GAME( 1995, coolridr, 0, coolridr, 0, coolridr, ROT0, "Sega", "Cool Riders",GAME_NOT_WORKING|GAME_NO_SOUND )