mirror of
https://github.com/holub/mame
synced 2025-05-19 20:29:09 +03:00
Cool Riders: 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. (and this is going to be REALLY nasty to do without docs...)
This commit is contained in:
Angelo Salese
parent
085f64656a
commit
509bb082fb
@ -4,6 +4,8 @@ Sega System H1
|
||||
preliminary
|
||||
|
||||
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
|
||||
Cool Riders
|
||||
@ -51,6 +53,8 @@ SEGA CUSTOM IC :
|
||||
#include "deprecat.h"
|
||||
#include "sound/scsp.h"
|
||||
|
||||
static UINT32* sysh1_workram_h,*h1_ioga,*framebuffer_data,*framebuffer_vram;
|
||||
|
||||
/* video */
|
||||
|
||||
static VIDEO_START(coolridr)
|
||||
@ -64,7 +68,68 @@ static VIDEO_UPDATE(coolridr)
|
||||
|
||||
/* 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;
|
||||
|
||||
// what's wrong:
|
||||
@ -74,19 +139,43 @@ static UINT32* sysh1_workram_h;
|
||||
|
||||
static ADDRESS_MAP_START( system_h1_map, ADDRESS_SPACE_PROGRAM, 32 )
|
||||
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(0x20000000, 0x200fffff) AM_ROM AM_SHARE(1)
|
||||
|
||||
AM_RANGE(0x60000000, 0x600003ff) AM_WRITENOP
|
||||
ADDRESS_MAP_END
|
||||
|
||||
static ADDRESS_MAP_START( coolridr_submap, ADDRESS_SPACE_PROGRAM, 32 )
|
||||
AM_RANGE(0x00000000, 0x0001ffff) AM_ROM AM_SHARE(2)
|
||||
|
||||
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(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(0x06100000, 0x06100fff) AM_RAM
|
||||
AM_RANGE(0x06200000, 0x06200fff) AM_RAM
|
||||
AM_RANGE(0x07fff000, 0x07ffffff) AM_RAM
|
||||
AM_RANGE(0x20000000, 0x2001ffff) AM_ROM AM_SHARE(2)
|
||||
|
||||
AM_RANGE(0x60000000, 0x600003ff) AM_WRITENOP
|
||||
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
|
||||
@ -125,32 +214,30 @@ static GFXDECODE_START( coolridr )
|
||||
GFXDECODE_END
|
||||
|
||||
|
||||
// IRQs 2 & 3 are valid on SH-2
|
||||
// IRQs 4 & 6 are valid on SH-2
|
||||
static INTERRUPT_GEN( system_h1 )
|
||||
{
|
||||
if (cpu_getiloops(device))
|
||||
cpu_set_input_line(device, 4, HOLD_LINE);
|
||||
else
|
||||
cpu_set_input_line(device, 3, HOLD_LINE);
|
||||
// if (cpu_getiloops(device))
|
||||
// cpu_set_input_line(device, 4, HOLD_LINE);
|
||||
// else
|
||||
// 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 )
|
||||
{
|
||||
if (cpu_getiloops(device))
|
||||
switch(cpu_getiloops(device))
|
||||
{
|
||||
// cpu_set_input_line(device, 4, HOLD_LINE);
|
||||
}
|
||||
else
|
||||
{
|
||||
// cpu_set_input_line(device, 3, HOLD_LINE);
|
||||
case 0:cpu_set_input_line(device, 0xa, HOLD_LINE); break;
|
||||
case 1:cpu_set_input_line(device, 0xc, HOLD_LINE); break;
|
||||
case 2:cpu_set_input_line(device, 0xe, HOLD_LINE); break;
|
||||
}
|
||||
}
|
||||
|
||||
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);
|
||||
|
||||
}
|
||||
@ -165,19 +252,18 @@ static MACHINE_DRIVER_START( coolridr )
|
||||
|
||||
MDRV_CPU_ADD("sub", SH1, 8000000) // SH7032 HD6417032F20!! ?? mhz
|
||||
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_SCREEN_ADD("main", RASTER)
|
||||
MDRV_SCREEN_REFRESH_RATE(60)
|
||||
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_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_VIDEO_START(coolridr)
|
||||
@ -226,4 +312,15 @@ ROM_START( coolridr )
|
||||
ROMX_LOAD( "mp17649.10",0x0000009, 0x0200000, CRC(567fbc0a) SHA1(3999c99b26f13d97ac1c58de00a44049ee7775fd), ROM_SKIP(9) )
|
||||
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 )
|
||||
|
||||
Loading…
Reference in New Issue
Block a user