X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=fceu.git;a=blobdiff_plain;f=mappers%2F57.c;fp=mappers%2F249.c;h=b64d270629174aeca7d3c8d8400c92b7f1e23755;hp=6225d497553172a6c583455dd5c385c6f55ee677;hb=d97315ac0bca825d2d50a44453bc5652946e2c67;hpb=890e37ba2b8ea1c7593dc05926d7431e3bd00bfb

diff --git a/mappers/249.c b/mappers/57.c
similarity index 64%
rename from mappers/249.c
rename to mappers/57.c
index 6225d49..b64d270 100644
--- a/mappers/249.c
+++ b/mappers/57.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
@@ -20,27 +20,30 @@
 
 #include "mapinc.h"
 
-uint8 doh;
 
-static DECLFW(Mapper249_write)
+
+static DECLFW(Mapper57_write)
 {
- switch(A&0xe001)
+ A&=0x8800;
+ if(A==0x8800)
  {
-  case 0x8000:doh=V;break;
-  case 0x8001:switch(doh&7)
-		{
-		 case 0:VROM_BANK2(0x0000,V>>1);break;
-		 case 1:VROM_BANK2(0x0800,V>>1);break;
-		 case 2:VROM_BANK1(0x1000,V);break;
-//		 case 6:ROM_BANK8(0xa000,V);break;
-//		 case 2:ROM_BANK8(0x8000,V);break;
-		}
+  mapbyte1[0]=V;
+  if(V&0x80)
+   ROM_BANK32(2|(V>>6));
+  else
+  {
+   ROM_BANK16(0x8000,(V>>5)&3);
+   ROM_BANK16(0xc000,(V>>5)&3);
+  }
+  MIRROR_SET((V&0x8)>>3);
  }
-// printf("$%04x:$%02x\n",A,V);
+ else
+  mapbyte1[1]=V;
+ VROM_BANK8((mapbyte1[1]&3)|(mapbyte1[0]&7)|((mapbyte1[0]&0x10)>>1));
+ //printf("$%04x:$%02x\n",A,V);
 }
 
-void Mapper249_init(void)
+void Mapper57_init(void)
 {
-  SetWriteHandler(0x8000,0xffff,Mapper249_write);
+ SetWriteHandler(0x8000,0xffff,Mapper57_write);
 }
-