X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=fceu.git;a=blobdiff_plain;f=mappers%2F43.c;h=ef7d40d78448eaf8c6d8964c932f98fd4c4fb381;hp=0ca0cee237e4f8782a353f7613a5064fe4716ab3;hb=d97315ac0bca825d2d50a44453bc5652946e2c67;hpb=890e37ba2b8ea1c7593dc05926d7431e3bd00bfb diff --git a/mappers/43.c b/mappers/43.c index 0ca0cee..ef7d40d 100644 --- a/mappers/43.c +++ b/mappers/43.c @@ -1,7 +1,7 @@ /* FCE Ultra - NES/Famicom Emulator * * Copyright notice for this file: - * Copyright (C) 2002 Ben Parnell + * Copyright (C) 2002 Xodnizel * * 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 @@ -22,43 +22,55 @@ -DECLFW(Mapper43_write) +static DECLFW(Mapper43_write) { - uint32 m; - int z; - - if(A&0x400) - onemir(0); + //printf("$%04x:$%02x\n",A,V); + if((A&0x8122)==0x8122) + { + X6502_IRQEnd(FCEU_IQEXT); + if(V&2) IRQa=1; else - MIRROR_SET((A>>13)&1); - m=A&0x1f; + IRQCount=IRQa=0; + } +} - z=(A>>8)&3; +static DECLFW(M43Low) +{ +// int transo[8]={4,3,4,4,4,7,5,6}; + int transo[8]={4,3,2,3,4,7,5,6}; + A&=0xF0FF; + if(A==0x4022) + setprg8(0x6000,transo[V&7]); + //printf("$%04x:$%02x\n",A,V); +} - switch(CHRmask8[0]) +static void FP_FASTAPASS(1) M43Ho(int a) +{ + IRQCount+=a; + if(IRQa) + if(IRQCount>=4096) { - default: - case 0xFF: - if(z&2) - m|=0x20; - break; - case 0x1FF: - m|=z<<5; - break; + X6502_IRQBegin(FCEU_IQEXT); } - - if(A&0x800) - { - ROM_BANK16(0x8000,(m<<1)|((A&0x1000)>>12)); - ROM_BANK16(0xC000,(m<<1)|((A&0x1000)>>12)); - } - else - ROM_BANK32(m); - X6502_Rebase(); } +//static DECLFR(boo) +//{ +// printf("$%04x\n",A); +// return( ROM[0x2000*8 +0x1000 +(A-0x5000)]); +//} + void Mapper43_init(void) { - ROM_BANK32(0); + setprg4(0x5000,16); + setprg8(0x6000,2); + setprg8(0x8000,1); + setprg8(0xa000,0); + setprg8(0xc000,4); + setprg8(0xe000,9); SetWriteHandler(0x8000,0xffff,Mapper43_write); + SetWriteHandler(0x4020,0x7fff,M43Low); + //SetReadHandler(0x5000,0x5fff,boo); + SetReadHandler(0x6000,0xffff,CartBR); + MapIRQHook=M43Ho; }