-/* FCE Ultra - NES/Famicom Emulator
- *
- * Copyright notice for this file:
- * Copyright (C) 2005 CaH4e3
- *
- * This program is free software; you can redistribute it and/or modify
- * it under the terms of the GNU General Public License as published by
- * the Free Software Foundation; either version 2 of the License, or
- * (at your option) any later version.
- *
- * This program is distributed in the hope that it will be useful,
- * but WITHOUT ANY WARRANTY; without even the implied warranty of
- * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- * GNU General Public License for more details.
- *
- * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
- */
-
-#include "mapinc.h"
-#include "mmc3.h"
-
-static uint8 unromchr;
-
-static void BMCFK23CCW(uint32 A, uint8 V)
-{
- if(EXPREGS[0]&0x40)
- setchr8((EXPREGS[2]&0xFC)|unromchr);
- else
- {
- uint16 base=(EXPREGS[2]&0x7F)<<3;
- setchr1(A,V|base);
- if(EXPREGS[3]&2)
- {
- setchr1(0x0400,EXPREGS[6]|base);
- setchr1(0x0C00,EXPREGS[7]|base);
- }
- }
-}
-
-static void BMCFK23CPW(uint32 A, uint8 V)
-{
- if(EXPREGS[0]&4)
- setprg32(0x8000,EXPREGS[1]>>1);
- else
- {
- if(EXPREGS[0]&2)
- setprg8(A,(V&(0x3F>>(EXPREGS[0]&3)))|(EXPREGS[1]<<1));
- else
- setprg8(A,V);
- if(EXPREGS[3]&2)
- {
- setprg8(0xC000,EXPREGS[4]);
- setprg8(0xE000,EXPREGS[5]);
- }
- }
-}
-
-static DECLFW(BMCFK23C8003Write)
-{
- if(EXPREGS[0]&0x40)
- {
- unromchr=V&3;
- FixMMC3CHR(MMC3_cmd);
- }
- else
- {
- if((A==0x8001)&&(EXPREGS[3]&2&&MMC3_cmd&8))
- {
- EXPREGS[4|(MMC3_cmd&3)]=V;
- FixMMC3PRG(MMC3_cmd);
- FixMMC3CHR(MMC3_cmd);
- }
- else
- MMC3_CMDWrite(A,V);
- }
-}
-
-static DECLFW(BMCFK23CWrite)
-{
- EXPREGS[A&3]=V;
- FixMMC3PRG(MMC3_cmd);
- FixMMC3CHR(MMC3_cmd);
-}
-
-static void BMCFK23CReset(void)
-{
- EXPREGS[0]=EXPREGS[1]=EXPREGS[2]=EXPREGS[3]=0;
- EXPREGS[4]=EXPREGS[5]=EXPREGS[6]=EXPREGS[7]=0xFF;
- MMC3RegReset();
-}
-
-static void BMCFK23CPower(void)
-{
- EXPREGS[0]=EXPREGS[1]=EXPREGS[2]=EXPREGS[3]=0;
- EXPREGS[4]=EXPREGS[5]=EXPREGS[6]=EXPREGS[7]=0xFF;
- GenMMC3Power();
- SetWriteHandler(0x5ff0,0x5fff,BMCFK23CWrite);
- SetWriteHandler(0x8000,0x8003,BMCFK23C8003Write);
-}
-
-void BMCFK23C_Init(CartInfo *info)
-{
- GenMMC3_Init(info, 512, 256, 8, 0);
- cwrap=BMCFK23CCW;
- pwrap=BMCFK23CPW;
- info->Power=BMCFK23CPower;
- info->Reset=BMCFK23CReset;
- AddExState(EXPREGS, 8, 0, "EXPR");
- AddExState(&unromchr, 1, 0, "UNCHR");
-}
+/* FCE Ultra - NES/Famicom Emulator\r
+ *\r
+ * Copyright notice for this file:\r
+ * Copyright (C) 2006 CaH4e3\r
+ *\r
+ * This program is free software; you can redistribute it and/or modify\r
+ * it under the terms of the GNU General Public License as published by\r
+ * the Free Software Foundation; either version 2 of the License, or\r
+ * (at your option) any later version.\r
+ *\r
+ * This program is distributed in the hope that it will be useful,\r
+ * but WITHOUT ANY WARRANTY; without even the implied warranty of\r
+ * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the\r
+ * GNU General Public License for more details.\r
+ *\r
+ * You should have received a copy of the GNU General Public License\r
+ * along with this program; if not, write to the Free Software\r
+ * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA\r
+ */\r
+\r
+#include "mapinc.h"\r
+#include "mmc3.h"\r
+#include "../ines.h"\r
+\r
+static bool is_BMCFK23CA;\r
+static uint8 unromchr;\r
+static uint32 dipswitch;\r
+static uint8 *CHRRAM=NULL;\r
+static uint32 CHRRAMSize;\r
+\r
+static void BMCFK23CCW(uint32 A, uint8 V)\r
+{\r
+ if(EXPREGS[0]&0x40)\r
+ setchr8(EXPREGS[2]|unromchr);\r
+ else if(EXPREGS[0]&0x20) {\r
+ setchr1r(0x10, A, V);\r
+ }\r
+ else\r
+ {\r
+ uint16 base=(EXPREGS[2]&0x7F)<<3;\r
+ if(EXPREGS[3]&2)\r
+ {\r
+ int cbase=(MMC3_cmd&0x80)<<5;\r
+ setchr1(A,V|base);\r
+ setchr1(0x0000^cbase,DRegBuf[0]|base);\r
+ setchr1(0x0400^cbase,EXPREGS[6]|base);\r
+ setchr1(0x0800^cbase,DRegBuf[1]|base);\r
+ setchr1(0x0c00^cbase,EXPREGS[7]|base);\r
+ }\r
+ else\r
+ setchr1(A,V|base);\r
+ }\r
+}\r
+\r
+//some games are wired differently, and this will need to be changed.\r
+//all the WXN games require prg_bonus = 1, and cah4e3's multicarts require prg_bonus = 0\r
+//we'll populate this from a game database\r
+static int prg_bonus;\r
+static int prg_mask;\r
+\r
+//prg_bonus = 0\r
+//4-in-1 (FK23C8021)[p1][!].nes\r
+//4-in-1 (FK23C8033)[p1][!].nes\r
+//4-in-1 (FK23C8043)[p1][!].nes\r
+//4-in-1 (FK23Cxxxx, S-0210A PCB)[p1][!].nes\r
+\r
+//prg_bonus = 1\r
+//[m176]大富翁2-上海大亨.wxn.nes\r
+//[m176]宠物翡翠.fix.nes\r
+//[m176]格兰帝亚.wxn.nes\r
+//[m176]梦幻之星.wxn.nes\r
+//[m176]水浒神兽.fix.nes\r
+//[m176]西楚霸王.fix.nes\r
+//[m176]超级大富翁.wxn.nes\r
+//[m176]雄霸天下.wxn.nes\r
+\r
+//works as-is under virtuanes m176\r
+//[m176]三侠五义.wxn.nes\r
+//[m176]口袋金.fix.nes\r
+//[m176]爆笑三国.fix.nes\r
+\r
+//needs other tweaks\r
+//[m176]三国忠烈传.wxn.nes\r
+//[m176]破釜沉舟.fix.nes\r
+\r
+//PRG wrapper\r
+static void BMCFK23CPW(uint32 A, uint8 V)\r
+{\r
+ uint32 bank = (EXPREGS[1] & 0x1F);\r
+ uint32 hiblock = ((EXPREGS[0] & 8) << 4)|((EXPREGS[0] & 0x80) << 1)|(UNIFchrrama?((EXPREGS[2] & 0x40)<<3):0);\r
+ uint32 block = (EXPREGS[1] & 0x60) | hiblock;\r
+ uint32 extra = (EXPREGS[3] & 2);\r
+\r
+ if((EXPREGS[0]&7)==4)\r
+ setprg32(0x8000,EXPREGS[1]>>1);\r
+ else if ((EXPREGS[0]&7)==3)\r
+ {\r
+ setprg16(0x8000,EXPREGS[1]);\r
+ setprg16(0xC000,EXPREGS[1]);\r
+ } \r
+ else\r
+ { \r
+ if(EXPREGS[0]&3)\r
+ {\r
+ uint32 blocksize = (6)-(EXPREGS[0]&3);\r
+ uint32 mask = (1<<blocksize)-1;\r
+ V &= mask;\r
+ //V &= 63; //? is this a good idea?\r
+ V |= (EXPREGS[1]<<1);\r
+ setprg8(A,V);\r
+ }\r
+ else\r
+ setprg8(A,V & prg_mask);\r
+\r
+ if(EXPREGS[3]&2)\r
+ {\r
+ setprg8(0xC000,EXPREGS[4]);\r
+ setprg8(0xE000,EXPREGS[5]);\r
+ }\r
+ }\r
+ setprg8r(0x10,0x6000,A001B&3);\r
+}\r
+\r
+//PRG handler ($8000-$FFFF)\r
+static DECLFW(BMCFK23CHiWrite)\r
+{\r
+ if(EXPREGS[0]&0x40)\r
+ {\r
+ if(EXPREGS[0]&0x30)\r
+ unromchr=0;\r
+ else\r
+ {\r
+ unromchr=V&3;\r
+ FixMMC3CHR(MMC3_cmd);\r
+ }\r
+ }\r
+ else\r
+ {\r
+ if((A==0x8001)&&(EXPREGS[3]&2&&MMC3_cmd&8))\r
+ {\r
+ EXPREGS[4|(MMC3_cmd&3)]=V;\r
+ FixMMC3PRG(MMC3_cmd);\r
+ FixMMC3CHR(MMC3_cmd);\r
+ }\r
+ else\r
+ if(A<0xC000) {\r
+ if(UNIFchrrama) { // hacky... strange behaviour, must be bit scramble due to pcb layot restrictions\r
+ // check if it not interfer with other dumps\r
+ if((A==0x8000)&&(V==0x46))\r
+ V=0x47;\r
+ else if((A==0x8000)&&(V==0x47))\r
+ V=0x46;\r
+ }\r
+ MMC3_CMDWrite(A,V);\r
+ FixMMC3PRG(MMC3_cmd);\r
+ }\r
+ else\r
+ MMC3_IRQWrite(A,V);\r
+ }\r
+}\r
+\r
+//EXP handler ($5000-$5FFF)\r
+static DECLFW(BMCFK23CWrite)\r
+{\r
+ if(A&(1<<(dipswitch+4)))\r
+ {\r
+ //printf("+ ");\r
+ EXPREGS[A&3]=V;\r
+\r
+ bool remap = false;\r
+\r
+ //sometimes writing to reg0 causes remappings to occur. we think the 2 signifies this. \r
+ //if not, 0x24 is a value that is known to work\r
+ //however, the low 4 bits are known to control the mapping mode, so 0x20 is more likely to be the immediate remap flag\r
+ remap |= ((EXPREGS[0]&0xF0)==0x20); \r
+\r
+ //this is an actual mapping reg. i think reg0 controls what happens when reg1 is written. anyway, we have to immediately remap these\r
+ remap |= (A&3)==1; \r
+ //this too.\r
+ remap |= (A&3)==2; \r
+\r
+ if(remap)\r
+ {\r
+ FixMMC3PRG(MMC3_cmd);\r
+ FixMMC3CHR(MMC3_cmd);\r
+ }\r
+ }\r
+\r
+ if(is_BMCFK23CA)\r
+ {\r
+ if(EXPREGS[3]&2)\r
+ EXPREGS[0] &= ~7; // hacky hacky! if someone wants extra banking, then for sure doesn't want mode 4 for it! (allow to run A version boards on normal mapper)\r
+ }\r
+\r
+ //printf("%04X = $%02X\n",A,V);\r
+ //printf("%02X %02X %02X %02X\n",EXPREGS[0],EXPREGS[1],EXPREGS[2],EXPREGS[3]);\r
+}\r
+\r
+static void BMCFK23CReset(void)\r
+{\r
+ //NOT NECESSARY ANYMORE\r
+ //this little hack makes sure that we try all the dip switch settings eventually, if we reset enough\r
+ // dipswitch++;\r
+ // dipswitch&=7;\r
+ //printf("BMCFK23C dipswitch set to %d\n",dipswitch);\r
+\r
+ EXPREGS[0]=EXPREGS[1]=EXPREGS[2]=EXPREGS[3]=0;\r
+ EXPREGS[4]=EXPREGS[5]=EXPREGS[6]=EXPREGS[7]=0xFF;\r
+ MMC3RegReset();\r
+ FixMMC3PRG(MMC3_cmd);\r
+ FixMMC3CHR(MMC3_cmd);\r
+}\r
+\r
+static void BMCFK23CPower(void)\r
+{\r
+ dipswitch = 0;\r
+ GenMMC3Power();\r
+ EXPREGS[0]=EXPREGS[1]=EXPREGS[2]=EXPREGS[3]=0;\r
+ EXPREGS[4]=EXPREGS[5]=EXPREGS[6]=EXPREGS[7]=0xFF;\r
+ GenMMC3Power();\r
+ SetWriteHandler(0x5000,0x5fff,BMCFK23CWrite);\r
+ SetWriteHandler(0x8000,0xFFFF,BMCFK23CHiWrite);\r
+ FixMMC3PRG(MMC3_cmd);\r
+ FixMMC3CHR(MMC3_cmd);\r
+}\r
+\r
+static void BMCFK23CAPower(void)\r
+{\r
+ GenMMC3Power();\r
+ dipswitch = 0;\r
+ EXPREGS[0]=EXPREGS[1]=EXPREGS[2]=EXPREGS[3]=0;\r
+ EXPREGS[4]=EXPREGS[5]=EXPREGS[6]=EXPREGS[7]=0xFF;\r
+ SetWriteHandler(0x5000,0x5fff,BMCFK23CWrite);\r
+ SetWriteHandler(0x8000,0xFFFF,BMCFK23CHiWrite);\r
+ FixMMC3PRG(MMC3_cmd);\r
+ FixMMC3CHR(MMC3_cmd);\r
+}\r
+\r
+static void BMCFK23CAClose(void)\r
+{\r
+ if(CHRRAM)\r
+ FCEU_gfree(CHRRAM);\r
+ CHRRAM=NULL;\r
+}\r
+\r
+void BMCFK23C_Init(CartInfo *info)\r
+{\r
+ is_BMCFK23CA = false;\r
+\r
+ GenMMC3_Init(info, 512, 256, 8, 0);\r
+ cwrap=BMCFK23CCW;\r
+ pwrap=BMCFK23CPW;\r
+ info->Power=BMCFK23CPower;\r
+ info->Reset=BMCFK23CReset;\r
+ AddExState(EXPREGS, 8, 0, "EXPR");\r
+ AddExState(&unromchr, 1, 0, "UNCHR");\r
+ AddExState(&dipswitch, 1, 0, "DIPSW");\r
+\r
+ prg_bonus = 1;\r
+ if(MasterRomInfoParams.find("bonus") != MasterRomInfoParams.end())\r
+ prg_bonus = atoi(MasterRomInfoParams["bonus"].c_str());\r
+\r
+ prg_mask = 0x7F>>(prg_bonus);\r
+}\r
+\r
+void BMCFK23CA_Init(CartInfo *info)\r
+{\r
+ is_BMCFK23CA = true;\r
+\r
+ GenMMC3_Init(info, 512, 256, 8, 0);\r
+ cwrap=BMCFK23CCW;\r
+ pwrap=BMCFK23CPW;\r
+ info->Power=BMCFK23CAPower;\r
+ info->Reset=BMCFK23CReset;\r
+ info->Close=BMCFK23CAClose;\r
+\r
+ CHRRAMSize=8192;\r
+ CHRRAM=(uint8*)FCEU_gmalloc(CHRRAMSize);\r
+ SetupCartCHRMapping(0x10, CHRRAM, CHRRAMSize, 1);\r
+ AddExState(CHRRAM, CHRRAMSize, 0, "CRAM");\r
+\r
+ AddExState(EXPREGS, 8, 0, "EXPR");\r
+ AddExState(&unromchr, 1, 0, "UNCHR");\r
+ AddExState(&dipswitch, 1, 0, "DIPSW");\r
+\r
+ prg_bonus = 1;\r
+ if(MasterRomInfoParams.find("bonus") != MasterRomInfoParams.end())\r
+ prg_bonus = atoi(MasterRomInfoParams["bonus"].c_str());\r
+ prg_mask = 0x7F>>(prg_bonus);\r
+}\r
notaz.gp2x.de / fceu.git / blobdiff