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from http://sourceforge.net/p/gens/patches/25/
--- gens.orig/src/gens/gens_core/cpu/68k/cpu_68k.c 2004-05-22 09:02:12.000000000 -0700
+++ gens/src/gens/gens_core/cpu/68k/cpu_68k.c 2005-03-21 10:52:24.000000000 -0800
@@ -24,9 +24,9 @@
struct STARSCREAM_PROGRAMREGION M68K_Fetch[] = {
{0x000000, 0x3FFFFF, (unsigned) 0x000000},
- {0xFF0000, 0xFFFFFF, (unsigned) &Ram_68k[0] - 0xFF0000},
- {0xF00000, 0xF0FFFF, (unsigned) &Ram_68k[0] - 0xF00000},
- {0xEF0000, 0xEFFFFF, (unsigned) &Ram_68k[0] - 0xEF0000},
+ {0xFF0000, 0xFFFFFF, (unsigned) NULL},
+ {0xF00000, 0xF0FFFF, (unsigned) NULL},
+ {0xEF0000, 0xEFFFFF, (unsigned) NULL},
{-1, -1, (unsigned) NULL},
{-1, -1, (unsigned) NULL},
{-1, -1, (unsigned) NULL}
@@ -60,7 +60,7 @@
struct STARSCREAM_PROGRAMREGION S68K_Fetch[] = {
- {0x000000, 0x07FFFF, (unsigned) &Ram_Prg[0]},
+ {0x000000, 0x07FFFF, (unsigned) NULL},
{-1, -1, (unsigned) NULL},
{-1, -1, (unsigned) NULL}
};
@@ -109,6 +109,10 @@
int
M68K_Init (void)
{
+ M68K_Fetch[1].offset=(unsigned) &Ram_68k[0] - 0xFF0000;
+ M68K_Fetch[2].offset=(unsigned) &Ram_68k[0] - 0xF00000;
+ M68K_Fetch[3].offset=(unsigned) &Ram_68k[0] - 0xEF0000;
+
memset (&Context_68K, 0, sizeof (Context_68K));
Context_68K.s_fetch = Context_68K.u_fetch = Context_68K.fetch = M68K_Fetch;
@@ -134,6 +138,8 @@
int
S68K_Init (void)
{
+ S68K_Fetch[0].offset=(unsigned) &Ram_Prg[0];
+
memset (&Context_68K, 0, sizeof (Context_68K));
Context_68K.s_fetch = Context_68K.u_fetch = Context_68K.fetch = S68K_Fetch;
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