X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=Pico%2Fcd%2FMemory.c;h=8053185f1c2cd0569d7df6108023b9078bb14fd1;hb=8022f53da61b8e70420a3bac97250119bbe26457;hp=360c0cf596c0e2c09fddedf6da85aef855debb82;hpb=4b167c12c7ebb23223c347793a2b4d5e9712e384;p=picodrive.git

diff --git a/Pico/cd/Memory.c b/Pico/cd/Memory.c
index 360c0cf..8053185 100644
--- a/Pico/cd/Memory.c
+++ b/Pico/cd/Memory.c
@@ -392,6 +392,24 @@ static u32 OtherRead16End(u32 a, int realsize)
     goto end;
   }
 
+  if (a==0x400000) {
+    if (SRam.data != NULL) d=3; // 64k cart
+    goto end;
+  }
+
+  if ((a&0xfe0000)==0x600000) {
+    if (SRam.data != NULL) {
+      d=SRam.data[((a>>1)&0xffff)+0x2000];
+      if (realsize == 8) d|=d<<8;
+    }
+    goto end;
+  }
+
+  if (a==0x7ffffe) {
+    d=Pico_mcd->m.bcram_reg;
+    goto end;
+  }
+
   dprintf("m68k FIXME: unusual r%i: %06x @%06x", realsize&~1, (a&0xfffffe)+(realsize&1), SekPc);
 
 end:
@@ -403,6 +421,19 @@ static void OtherWrite8End(u32 a, u32 d, int realsize)
 {
   if ((a&0xffffc0)==0xa12000) { m68k_reg_write8(a, d); return; }
 
+  if ((a&0xfe0000)==0x600000) {
+    if (SRam.data != NULL && (Pico_mcd->m.bcram_reg&1)) {
+      SRam.data[((a>>1)&0xffff)+0x2000]=d;
+      SRam.changed = 1;
+    }
+    return;
+  }
+
+  if (a==0x7fffff) {
+    Pico_mcd->m.bcram_reg=d;
+    return;
+  }
+
   dprintf("m68k FIXME: strange w%i: [%06x], %08x @%06x", realsize, a&0xffffff, d, SekPc);
 }