{\r
u32 d=0;\r
\r
+ // 32x test\r
+/*\r
+ if (a == 0xa130ec) { d = 0x4d41; goto end; } // MA\r
+ else if (a == 0xa130ee) { d = 0x5253; goto end; } // RS\r
+ else if (a == 0xa15100) { d = 0x0080; goto end; }\r
+ else\r
+*/\r
+\r
// for games with simple protection devices, discovered by Haze\r
// some dumb detection is used, but that should be enough to make things work\r
if ((a>>22) == 1 && Pico.romsize >= 512*1024) {\r
\r
// -----------------------------------------------------------------\r
\r
-// TODO: asm code\r
static void OtherWrite16End(u32 a,u32 d,int realsize)\r
{\r
PicoWrite8Hook(a, d>>8, realsize);\r
PicoWrite16Hook = OtherWrite16End;\r
}\r
\r
+#ifdef EMU_M68K\r
+static void m68k_mem_setup(void);\r
+#endif\r
+\r
PICO_INTERNAL void PicoMemSetup(void)\r
{\r
// Setup memory callbacks:\r
// setup FAME fetchmap\r
{\r
int i;\r
- // by default, point everything to fitst 64k of ROM\r
+ // by default, point everything to first 64k of ROM\r
for (i = 0; i < M68K_FETCHBANK1; i++)\r
PicoCpuFM68k.Fetch[i] = (unsigned int)Pico.rom - (i<<(24-FAMEC_FETCHBITS));\r
// now real ROM\r
PicoCpuFM68k.Fetch[i] = (unsigned int)Pico.ram - (i<<(24-FAMEC_FETCHBITS));\r
}\r
#endif\r
+#ifdef EMU_M68K\r
+ m68k_mem_setup();\r
+#endif\r
}\r
\r
-\r
+/* some nasty things below :( */\r
#ifdef EMU_M68K\r
-unsigned int m68k_read_pcrelative_CD8 (unsigned int a);\r
-unsigned int m68k_read_pcrelative_CD16(unsigned int a);\r
-unsigned int m68k_read_pcrelative_CD32(unsigned int a);\r
-\r
-// these are allowed to access RAM\r
+unsigned int (*pm68k_read_memory_8) (unsigned int address) = NULL;\r
+unsigned int (*pm68k_read_memory_16)(unsigned int address) = NULL;\r
+unsigned int (*pm68k_read_memory_32)(unsigned int address) = NULL;\r
+void (*pm68k_write_memory_8) (unsigned int address, unsigned char value) = NULL;\r
+void (*pm68k_write_memory_16)(unsigned int address, unsigned short value) = NULL;\r
+void (*pm68k_write_memory_32)(unsigned int address, unsigned int value) = NULL;\r
+unsigned int (*pm68k_read_memory_pcr_8) (unsigned int address) = NULL;\r
+unsigned int (*pm68k_read_memory_pcr_16)(unsigned int address) = NULL;\r
+unsigned int (*pm68k_read_memory_pcr_32)(unsigned int address) = NULL;\r
+\r
+// these are here for core debugging mode\r
static unsigned int m68k_read_8 (unsigned int a, int do_fake)\r
{\r
a&=0xffffff;\r
#ifdef EMU_CORE_DEBUG\r
if(do_fake&&((ppop&0x3f)==0x3a||(ppop&0x3f)==0x3b)) return lastread_d[lrp_mus++&15];\r
#endif\r
- if(PicoAHW&1) return m68k_read_pcrelative_CD8(a);\r
- if((a&0xe00000)==0xe00000) return *(u8 *)(Pico.ram+((a^1)&0xffff)); // Ram\r
- return 0;\r
+ return pm68k_read_memory_pcr_8(a);\r
}\r
static unsigned int m68k_read_16(unsigned int a, int do_fake)\r
{\r
#ifdef EMU_CORE_DEBUG\r
if(do_fake&&((ppop&0x3f)==0x3a||(ppop&0x3f)==0x3b)) return lastread_d[lrp_mus++&15];\r
#endif\r
- if(PicoAHW&1) return m68k_read_pcrelative_CD16(a);\r
- if((a&0xe00000)==0xe00000) return *(u16 *)(Pico.ram+(a&0xfffe)); // Ram\r
- return 0;\r
+ return pm68k_read_memory_pcr_16(a);\r
}\r
static unsigned int m68k_read_32(unsigned int a, int do_fake)\r
{\r
#ifdef EMU_CORE_DEBUG\r
if(do_fake&&((ppop&0x3f)==0x3a||(ppop&0x3f)==0x3b)) return lastread_d[lrp_mus++&15];\r
#endif\r
- if(PicoAHW&1) return m68k_read_pcrelative_CD32(a);\r
- if((a&0xe00000)==0xe00000) { u16 *pm=(u16 *)(Pico.ram+(a&0xfffe)); return (pm[0]<<16)|pm[1]; } // Ram\r
- return 0;\r
+ return pm68k_read_memory_pcr_32(a);\r
}\r
\r
unsigned int m68k_read_pcrelative_8 (unsigned int a) { return m68k_read_8 (a, 1); }\r
unsigned int m68k_read_disassembler_16(unsigned int a) { return m68k_read_16(a, 0); }\r
unsigned int m68k_read_disassembler_32(unsigned int a) { return m68k_read_32(a, 0); }\r
\r
+static unsigned int m68k_read_memory_pcr_8(unsigned int a)\r
+{\r
+ if((a&0xe00000)==0xe00000) return *(u8 *)(Pico.ram+((a^1)&0xffff)); // Ram\r
+ return 0;\r
+}\r
+\r
+static unsigned int m68k_read_memory_pcr_16(unsigned int a)\r
+{\r
+ if((a&0xe00000)==0xe00000) return *(u16 *)(Pico.ram+(a&0xfffe)); // Ram\r
+ return 0;\r
+}\r
+\r
+static unsigned int m68k_read_memory_pcr_32(unsigned int a)\r
+{\r
+ if((a&0xe00000)==0xe00000) { u16 *pm=(u16 *)(Pico.ram+(a&0xfffe)); return (pm[0]<<16)|pm[1]; } // Ram\r
+ return 0;\r
+}\r
+\r
#ifdef EMU_CORE_DEBUG\r
// ROM only\r
unsigned int m68k_read_memory_8(unsigned int a)\r
void m68k_write_memory_8(unsigned int address, unsigned int value) { lastwrite_mus_d[lwp_mus++&15] = value; }\r
void m68k_write_memory_16(unsigned int address, unsigned int value) { lastwrite_mus_d[lwp_mus++&15] = value; }\r
void m68k_write_memory_32(unsigned int address, unsigned int value) { lastwrite_mus_d[lwp_mus++&15] = value; }\r
-#else\r
-unsigned char PicoReadCD8w (unsigned int a);\r
-unsigned short PicoReadCD16w(unsigned int a);\r
-unsigned int PicoReadCD32w(unsigned int a);\r
-void PicoWriteCD8w (unsigned int a, unsigned char d);\r
-void PicoWriteCD16w(unsigned int a, unsigned short d);\r
-void PicoWriteCD32w(unsigned int a, unsigned int d);\r
-\r
-/* it appears that Musashi doesn't always mask the unused bits */\r
-unsigned int m68k_read_memory_8(unsigned int address)\r
-{\r
- unsigned int d = (PicoAHW&1) ? PicoReadCD8w(address) : PicoRead8(address);\r
- return d&0xff;\r
-}\r
-\r
-unsigned int m68k_read_memory_16(unsigned int address)\r
-{\r
- unsigned int d = (PicoAHW&1) ? PicoReadCD16w(address) : PicoRead16(address);\r
- return d&0xffff;\r
-}\r
-\r
-unsigned int m68k_read_memory_32(unsigned int address)\r
-{\r
- return (PicoAHW&1) ? PicoReadCD32w(address) : PicoRead32(address);\r
-}\r
-\r
-void m68k_write_memory_8(unsigned int address, unsigned int value)\r
-{\r
- if (PicoAHW&1) PicoWriteCD8w(address, (u8)value); else PicoWrite8(address, (u8)value);\r
-}\r
\r
-void m68k_write_memory_16(unsigned int address, unsigned int value)\r
-{\r
- if (PicoAHW&1) PicoWriteCD16w(address,(u16)value); else PicoWrite16(address,(u16)value);\r
-}\r
+#else // if !EMU_CORE_DEBUG\r
\r
-void m68k_write_memory_32(unsigned int address, unsigned int value)\r
-{\r
- if (PicoAHW&1) PicoWriteCD32w(address, value); else PicoWrite32(address, value);\r
+/* it appears that Musashi doesn't always mask the unused bits */\r
+unsigned int m68k_read_memory_8 (unsigned int address) { return pm68k_read_memory_8 (address) & 0xff; }\r
+unsigned int m68k_read_memory_16(unsigned int address) { return pm68k_read_memory_16(address) & 0xffff; }\r
+unsigned int m68k_read_memory_32(unsigned int address) { return pm68k_read_memory_32(address); }\r
+void m68k_write_memory_8 (unsigned int address, unsigned int value) { pm68k_write_memory_8 (address, (u8)value); }\r
+void m68k_write_memory_16(unsigned int address, unsigned int value) { pm68k_write_memory_16(address,(u16)value); }\r
+void m68k_write_memory_32(unsigned int address, unsigned int value) { pm68k_write_memory_32(address, value); }\r
+#endif // !EMU_CORE_DEBUG\r
+\r
+static void m68k_mem_setup(void)\r
+{\r
+ pm68k_read_memory_8 = PicoRead8;\r
+ pm68k_read_memory_16 = PicoRead16;\r
+ pm68k_read_memory_32 = PicoRead32;\r
+ pm68k_write_memory_8 = PicoWrite8;\r
+ pm68k_write_memory_16 = PicoWrite16;\r
+ pm68k_write_memory_32 = PicoWrite32;\r
+ pm68k_read_memory_pcr_8 = m68k_read_memory_pcr_8;\r
+ pm68k_read_memory_pcr_16 = m68k_read_memory_pcr_16;\r
+ pm68k_read_memory_pcr_32 = m68k_read_memory_pcr_32;\r
}\r
-#endif\r
#endif // EMU_M68K\r
\r
\r