port to updated Cyclone, debug menu

[picodrive.git] / Pico / Memory.c

diff --git a/Pico/Memory.c b/Pico/Memory.c
index daec623..2b253d8 100644 (file)
--- a/Pico/Memory.c
+++ b/Pico/Memory.c
@@ -22,8 +22,8 @@ typedef unsigned int   u32;
 extern unsigned int lastSSRamWrite; // used by serial SRAM code\r
 \r
 #ifdef _ASM_MEMORY_C\r
-u8   PicoRead8(u32 a);\r
-u16  PicoRead16(u32 a);\r
+u32  PicoRead8(u32 a);\r
+u32  PicoRead16(u32 a);\r
 void PicoWriteRomHW_SSF2(u32 a,u32 d);\r
 void PicoWriteRomHW_in1 (u32 a,u32 d);\r
 #endif\r
@@ -69,11 +69,13 @@ static u32 CPU_CALL PicoCheckPc(u32 pc)
   u32 ret=0;\r
 #if defined(EMU_C68K)\r
   pc-=PicoCpu.membase; // Get real pc\r
-  pc&=0xfffffe;\r
-  if (pc == 0)\r
+//  pc&=0xfffffe;\r
+  pc&=~1;\r
+  if ((pc<<8) == 0)\r
     return (int)Pico.rom + Pico.romsize; // common crash condition, can happen if acc timing is off\r
 \r
-  PicoCpu.membase=PicoMemBase(pc);\r
+  PicoCpu.membase=PicoMemBase(pc&0x00ffffff);\r
+  PicoCpu.membase-=pc&0xff000000;\r
 \r
   ret = PicoCpu.membase+pc;\r
 #elif defined(EMU_A68K)\r
@@ -264,7 +266,7 @@ static void OtherWrite8End(u32 a,u32 d,int realsize)
 //                     Read Rom and read Ram\r
 \r
 #ifndef _ASM_MEMORY_C\r
-u8 CPU_CALL PicoRead8(u32 a)\r
+u32 CPU_CALL PicoRead8(u32 a)\r
 {\r
   u32 d=0;\r
 \r
@@ -312,12 +314,12 @@ u8 CPU_CALL PicoRead8(u32 a)
     lastread_d[lrp_cyc++&15] = (u8)d;\r
   }\r
 #endif\r
-  return (u8)d;\r
+  return d;\r
 }\r
 \r
-u16 CPU_CALL PicoRead16(u32 a)\r
+u32 CPU_CALL PicoRead16(u32 a)\r
 {\r
-  u16 d=0;\r
+  u32 d=0;\r
 \r
   if ((a&0xe00000)==0xe00000) { d=*(u16 *)(Pico.ram+(a&0xfffe)); goto end; } // Ram\r
 \r
@@ -326,14 +328,14 @@ u16 CPU_CALL PicoRead16(u32 a)
 #if !(defined(EMU_C68K) && defined(EMU_M68K))\r
   // sram\r
   if(a >= SRam.start && a <= SRam.end && (Pico.m.sram_reg & 1)) {\r
-    d = (u16) SRAMRead(a);\r
+    d = SRAMRead(a);\r
     goto end;\r
   }\r
 #endif\r
 \r
   if (a<Pico.romsize) { d = *(u16 *)(Pico.rom+a); goto end; } // Rom\r
 \r
-  d = (u16)OtherRead16(a, 16);\r
+  d = OtherRead16(a, 16);\r
 \r
   end:\r
   //if ((a&0xe0ffff)==0xe0AF0E+0x69c||(a&0xe0ffff)==0xe0A9A8+0x69c||(a&0xe0ffff)==0xe0A9AA+0x69c||(a&0xe0ffff)==0xe0A9AC+0x69c)\r