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mapper 121 update

This commit is contained in:
CaH4e3 2012-10-21 12:48:09 +00:00
parent af36f1f0ad
commit 3bab128770
1 changed files with 89 additions and 37 deletions
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126
src/boards/121.cpp
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@ -16,68 +16,118 @@
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
*
* Panda prince pirate.
* MK4, MK6, A9711 board, MAPPER 187 the same!
* UNL6035052_Init seems to be the same too, but with prot array in reverse
* MK4, MK6, A9711/A9713 board
* 6035052 seems to be the same too, but with prot array in reverse
* A9746 seems to be the same too, check
* 187 seems to be the same too, check (A98402 board)
*
*/
#include "mapinc.h"
#include "mmc3.h"
static uint8 readbyte = 0;
static void Sync()
{
switch(EXPREGS[5]&0x3F)
{
case 0x20: EXPREGS[7] = 1; EXPREGS[0]=EXPREGS[6]; break;
case 0x29: EXPREGS[7] = 1; EXPREGS[0]=EXPREGS[6]; break;
case 0x26: EXPREGS[7] = 0; EXPREGS[0]=EXPREGS[6]; break;
case 0x2B: EXPREGS[7] = 1; EXPREGS[0]=EXPREGS[6]; break;
case 0x2C: EXPREGS[7] = 1; if(EXPREGS[6]) EXPREGS[0]=EXPREGS[6]; break;
case 0x3C:
case 0x3F: EXPREGS[7] = 1; EXPREGS[0]=EXPREGS[6]; break;
case 0x28: EXPREGS[7] = 0; EXPREGS[1]=EXPREGS[6]; break;
case 0x2A: EXPREGS[7] = 0; EXPREGS[2]=EXPREGS[6]; break;
case 0x2F: break;
default: EXPREGS[5] = 0; break;
}
}
static void M121CW(uint32 A, uint8 V)
{
if(PRGsize[0] == CHRsize[0]) // A9713 multigame extension hack!
{
setchr1(A,V|((EXPREGS[3]&0x80)<<1));
}
else
{
if((A&0x1000)==((MMC3_cmd&0x80)<<5))
setchr1(A,V|0x100);
else
setchr1(A,V);
}
}
static void M121PW(uint32 A, uint8 V)
{
if(EXPREGS[5]&0x3F)
{
// FCEU_printf("prot banks: %02x %02x %02x %02x\n",V,EXPREGS[2],EXPREGS[1],EXPREGS[0]);
setprg8(A,(V&0x1F)|((EXPREGS[3]&0x80)>>2));
setprg8(0xE000,(EXPREGS[0])|((EXPREGS[3]&0x80)>>2));
setprg8(0xC000,(EXPREGS[1])|((EXPREGS[3]&0x80)>>2));
setprg8(0xA000,(EXPREGS[2])|((EXPREGS[3]&0x80)>>2));
}
else
{
// FCEU_printf("gen banks: %04x %02x\n",A,V);
setprg8(A,(V&0x1F)|((EXPREGS[3]&0x80)>>2));
}
}
static DECLFW(M121Write)
{
// FCEU_printf("write: %04x:%04x\n",A&0xE003,V);
if((A&0xF003)==0x8003)
switch(A&0xE003)
{
// FCEU_printf(" prot write");
// FCEU_printf("write: %04x:%04x\n",A,V);
if (V==0xAB) setprg8(0xE000,7);
else if(V==0x26) setprg8(0xE000,8);
// else if(V==0x26) setprg8(0xE000,1); // MK3
// else if(V==0x26) setprg8(0xE000,0x15); // sonic 3D blast, 8003 - command (0x26), 8001 - data 0x2A (<<1 = 0x15)
else if(V==0xFF) setprg8(0xE000,9);
else if(V==0x28) setprg8(0xC000,0xC);
else if(V==0xEC) setprg8(0xE000,0xD);
// else if(V==0xEC) setprg8(0xE000,0xC);//MK3
else if(V==0xEF) setprg8(0xE000,0xD); // damn mess, need real hardware to figure out bankswitching
else if(V==0x2A) setprg8(0xA000,0x0E);
// else if(V==0x2A) setprg8(0xE000,0x0C); // MK3
else if(V==0x20) setprg8(0xE000,0x13);
else if(V==0x29) setprg8(0xE000,0x1B);
else
{
// FCEU_printf(" unknown");
FixMMC3PRG(MMC3_cmd);
MMC3_CMDWrite(A,V);
}
// FCEU_printf("\n");
}
else
{
// FixMMC3PRG(MMC3_cmd);
MMC3_CMDWrite(A,V);
case 0x8000: //EXPREGS[5] = 0;
// FCEU_printf("gen: %02x\n",V);
MMC3_CMDWrite(A,V);
FixMMC3PRG(MMC3_cmd);
break;
case 0x8001: EXPREGS[6] = ((V&1)<<5)|((V&2)<<3)|((V&4)<<1)|((V&8)>>1)|((V&0x10)>>3)|((V&0x20)>>5);
// FCEU_printf("bank: %02x (%02x)\n",V,EXPREGS[6]);
if(!EXPREGS[7]) Sync();
MMC3_CMDWrite(A,V);
FixMMC3PRG(MMC3_cmd);
break;
case 0x8003: EXPREGS[5] = V;
// EXPREGS[7] = 0;
// FCEU_printf("prot: %02x\n",EXPREGS[5]);
Sync();
MMC3_CMDWrite(0x8000,V);
FixMMC3PRG(MMC3_cmd);
break;
}
}
static uint8 prot_array[16] = { 0x83, 0x83, 0x42, 0x00 };
static DECLFW(M121LoWrite)
{
EXPREGS[0] = prot_array[V&3]; // 0x100 bit in address seems to be switch arrays 0, 2, 2, 3 (Contra Fighter)
EXPREGS[4] = prot_array[V&3]; // 0x100 bit in address seems to be switch arrays 0, 2, 2, 3 (Contra Fighter)
if((A & 0x5180) == 0x5180) // A9713 multigame extension
{
EXPREGS[3] = V;
FixMMC3PRG(MMC3_cmd);
FixMMC3CHR(MMC3_cmd);
}
// FCEU_printf("write: %04x:%04x\n",A,V);
}
static DECLFR(M121Read)
{
// FCEU_printf("read: %04x\n",A);
return EXPREGS[0];
{
// FCEU_printf("read: %04x->\n",A,EXPREGS[0]);
return EXPREGS[4];
}
static void M121Power(void)
{
EXPREGS[3] = 0x80;
EXPREGS[5] = 0;
GenMMC3Power();
// Write_IRQFM(0x4017,0x40);
SetReadHandler(0x5000,0x5FFF,M121Read);
SetWriteHandler(0x5000,0x5FFF,M121LoWrite);
SetWriteHandler(0x8000,0x9FFF,M121Write);
@ -86,6 +136,8 @@ static void M121Power(void)
void Mapper121_Init(CartInfo *info)
{
GenMMC3_Init(info, 128, 256, 8, 0);
pwrap=M121PW;
cwrap=M121CW;
info->Power=M121Power;
AddExState(EXPREGS, 2, 0, "EXPR");
AddExState(EXPREGS, 8, 0, "EXPR");
}