updated bords/mappers/stuff to 0.98.15, lots of them got broken, asmcore support...

[fceu.git] / mappers / 189.c

diff --git a/mappers/189.c b/mappers/189.c
index bdcf4b7..68df5b5 100644 (file)
--- a/mappers/189.c
+++ b/mappers/189.c
@@ -8,31 +8,45 @@
 #define cmd mapbyte1[0]
 static DECLFW(Mapper189_write)
 {
- if(A==0x4120)
- {
-  ROM_BANK32(V>>4);
-  X6502_Rebase();
- }
+ //if(A>=0xc000) printf("$%04x:$%02x\n",A,V);
+ if((A&0xF100)==0x4100) ROM_BANK32(V>>4);
+ else if((A&0xF100)==0x6100) ROM_BANK32(V&3);
  else switch(A&0xE001)
  {
   case 0xa000:MIRROR_SET(V&1);break;
   case 0x8000:cmd=V;break;
   case 0x8001:switch(cmd&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 0:VROM_BANK2(0x0000,V>>1);break;
+               case 1:VROM_BANK2(0x0800,V>>1);break;
+               case 2:VROM_BANK1(0x1000,V);break;
                case 3:VROM_BANK1(0x1400,V);break;
                case 4:VROM_BANK1(0x1800,V);break;
                case 5:VROM_BANK1(0x1C00,V);break;
-             }
-             break;
+              }
+   case 0xc000:IRQLatch=V;break;
+   case 0xc001:IRQCount=IRQLatch;break;
+   case 0xe000:IRQa=0;X6502_IRQEnd(FCEU_IQEXT);break;
+   case 0xe001:IRQa=1;break;
+              break;
 
  }
 }
+void m189irq(void)
+{
+ if(IRQa)
+ {
+  if(IRQCount)
+  {
+   IRQCount--;
+   if(!IRQCount) X6502_IRQBegin(FCEU_IQEXT);
+  }
+ }
 
+}
 void Mapper189_init(void)
 {
+  GameHBIRQHook=m189irq;
   SetWriteHandler(0x4120,0xFFFF,Mapper189_write);
   SetReadHandler(0x6000,0x7FFF,0);
   ROM_BANK32(0);