-/* 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA\r
+ */\r
+\r
+#include "mapinc.h"\r
+#include "mmc3.h"\r
+\r
+static uint8 unromchr;\r
+static uint32 dipswitch = 0;\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
+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
+ switch(EXPREGS[0]&7)\r
+ {\r
+ case 0: setprg8(A, (block << 1) | (V & 0x3F));\r
+ if(extra)\r
+ {\r
+ setprg8(0xC000,EXPREGS[4]);\r
+ setprg8(0xE000,EXPREGS[5]);\r
+ }\r
+ break;\r
+ case 1: setprg8(A, ((hiblock | (EXPREGS[1] & 0x70)) << 1) | (V & 0x1F));\r
+ if(extra)\r
+ {\r
+ setprg8(0xC000,EXPREGS[4]);\r
+ setprg8(0xE000,EXPREGS[5]);\r
+ }\r
+ break;\r
+ case 2: setprg8(A, ((hiblock | (EXPREGS[1] & 0x78)) << 1) | (V & 0x0F));\r
+ if(extra)\r
+ {\r
+ setprg8(0xC000,EXPREGS[4]);\r
+ setprg8(0xE000,EXPREGS[5]);\r
+ }\r
+ break;\r
+ case 3: setprg16(0x8000,(bank | block));\r
+ setprg16(0xC000,(bank | block));\r
+ break;\r
+ case 4: setprg32(0x8000,(bank | block) >> 1);\r
+ break;\r
+ }\r
+ setprg8r(0x10,0x6000,A001B&3);\r
+}\r
+\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
+static DECLFW(BMCFK23CWrite)\r
+{\r
+ //FCEU_printf("lo %04x:%02x\n",A,V);\r
+ if(dipswitch) // íóëåâîé äèï áåðåò ëþáûå çàïèñè ïî äåôîëòó, äàëüøå èäåò âûáîð\r
+ {\r
+ if(A&(1<<(dipswitch+3))) {\r
+ EXPREGS[A&3]=V;\r
+// FCEU_printf(" reg %d set!\n",A&3);\r
+ FixMMC3PRG(MMC3_cmd);\r
+ FixMMC3CHR(MMC3_cmd);\r
+ }\r
+ }\r
+ else\r
+ {\r
+ EXPREGS[A&3]=V;\r
+// FCEU_printf(" reg %d set!\n",A&3);\r
+ FixMMC3PRG(MMC3_cmd);\r
+ FixMMC3CHR(MMC3_cmd);\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
+static void BMCFK23CReset(void)\r
+{\r
+ if(dipswitch<=8)\r
+ dipswitch++;\r
+ else\r
+ dipswitch=0;\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
+ GenMMC3Power();\r
+ EXPREGS[0]=4;\r
+ EXPREGS[1]=0xFF;\r
+ EXPREGS[2]=EXPREGS[3]=0;\r
+ dipswitch = 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 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
+ GenMMC3_Init(info, 512, 256, 128, 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, "UCHR");\r
+ AddExState(&dipswitch, 1, 0, "DPSW");\r
+}\r
+\r
+void BMCFK23CA_Init(CartInfo *info)\r
+{\r
+ GenMMC3_Init(info, 512, 256, 128, 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, "UCHR");\r
+ AddExState(&dipswitch, 1, 0, "DPSW");\r
+}\r
notaz.gp2x.de / fceu.git / blobdiff