X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?p=fceu.git;a=blobdiff_plain;f=mappers%2F187.c;fp=mappers%2F187.c;h=c9925df785062ef2c5e82c82a01b78fc97919af5;hp=0000000000000000000000000000000000000000;hb=d97315ac0bca825d2d50a44453bc5652946e2c67;hpb=890e37ba2b8ea1c7593dc05926d7431e3bd00bfb

diff --git a/mappers/187.c b/mappers/187.c
new file mode 100644
index 0000000..c9925df
--- /dev/null
+++ b/mappers/187.c
@@ -0,0 +1,170 @@
+/* FCE Ultra - NES/Famicom Emulator
+ *
+ * Copyright notice for this file:
+ *  Copyright (C) 2003 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
+ * 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"
+
+static uint8 LastWr;
+static uint8 ExtMode;
+static uint8 cmd;
+static uint8 DRegs[8];
+static uint32 count=0;
+static uint32 last=0;
+static int safe=0;
+static uint8 poofish;
+
+static void Sync(void)
+{
+ int x;
+ uint32 base=0;
+
+ if(cmd&0x80) base=0x1000;
+ setchr2(0x0000^base,(0x100|DRegs[0])>>1);
+ setchr2(0x0800^base,(0x100|DRegs[1])>>1);
+ for(x=0;x<4;x++)
+  setchr1((0x1000^base)+x*0x400,DRegs[2+x]);
+
+ if(ExtMode&0x80)
+ {
+  if(ExtMode&0x20)
+   setprg32(0x8000,(ExtMode&0x1F)>>1);
+  else
+  {
+   setprg16(0x8000,(ExtMode&0x1F));
+   setprg16(0xc000,(ExtMode&0x1F));
+  }
+ }
+ else
+ {
+  setprg8(0x8000,DRegs[6]);
+  setprg8(0xa000,DRegs[7]);
+  setprg8(0xc000,~1);
+  setprg8(0xe000,~0);
+ }
+}
+
+static DECLFW(M187Write)
+{
+// FCEU_printf("Write: %04x:%04x (%04x,%d)\n",A,V,X.PC,scanline);
+ LastWr=V;
+ if(A==0x5000)
+  ExtMode=V;
+ Sync();
+}
+
+static DECLFW(M187HWrite)
+{
+// FCEU_printf("Write: %04x:%04x (%04x,%d)\n",A,V,X.PC,scanline);
+ //if(A==0x8003 && X.PC<0x800) FCEUI_DumpMem("dmp",0x0000,0xFFFF);
+ //printf("$%04x:$%02x, %04x\n",A,V,X.PC);
+ LastWr=V;
+
+ if(A==0x8003)
+ {
+//  if(V==0x28 || V==0x2A)
+   poofish=V;
+ }
+ else if(A==0x8000) poofish=0;
+
+ switch(A)
+ {
+  case 0xc000:IRQLatch=IRQCount=V;break;
+  case 0xc001:IRQCount=IRQLatch;last=count=0;break;
+  case 0xe000:IRQa=0;X6502_IRQEnd(FCEU_IQEXT);break;
+  case 0xe001:IRQa=1;break;
+  case 0xa000:MIRROR_SET(V&1);break;
+
+  case 0x8000:cmd=V;safe=1;break;
+  case 0x8001:
+              if(safe)
+              {
+               //printf("Cmd: %d, %02x, %04x\n",cmd&0x7,V,X.PC);
+               DRegs[cmd&7]=V;
+               Sync();
+               safe=0;
+              }
+                if(poofish==0x28)
+                  setprg8(0xC000,0x17);
+                else if(poofish==0x2A)
+                  setprg8(0xA000,0x0F);
+              break;
+
+ }
+}
+
+static DECLFR(ProtRead)
+{
+ switch(LastWr&0x3)
+ {
+  case 0x1:
+  case 0x0: return(0x83);
+  case 0x2: return(0x42);
+ }
+ return(0);
+}
+
+DECLFW(Write_IRQFM);
+
+static void M187Power(void)
+{
+ Write_IRQFM(0x4017,0x40);
+ SetWriteHandler(0x5000,0x5fff,M187Write);
+ SetWriteHandler(0x8000,0xFFFF,M187HWrite);
+ SetReadHandler(0x5000,0x5FFF,ProtRead);
+ SetWriteHandler(0x6000,0x7FFF,M187Write);
+ SetReadHandler(0x8000,0xffff,CartBR);
+ Sync();
+}
+
+static void sl(void)
+{
+ if(IRQa)
+ {
+  if(IRQCount>=0)
+  {
+   IRQCount--;
+   if(IRQCount<0)
+   {
+    X6502_IRQBegin(FCEU_IQEXT);
+   }
+  }
+ }
+}
+
+static void FP_FASTAPASS(1) foo(uint32 A)
+{
+ if((A&0x2000) && !(last&0x2000))
+ {
+  count++;
+  if(count==42)
+  {
+   sl();
+   count=0;
+  }
+ }
+ last=A;
+}
+
+void Mapper187_Init(CartInfo *info)
+{
+ info->Power=M187Power;
+// GameHBIRQHook=sl;
+ PPU_hook=foo;
+}
+