dualcore integration in famc, bram cart C code, psp bugfixes

git-svn-id: file:///home/notaz/opt/svn/PicoDrive@294 be3aeb3a-fb24-0410-a615-afba39da0efa

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);
 }
 

Pico/cd/Memory.s

@@ -381,7 +381,7 @@ PicoWriteS68k32: @ u32 a, u32 d
     add     r2, r2, #0x110000
     add     r2, r2, #0x002200
 .if \is_read
-    ldrb    r0, [r2, #0x18]
+    ldrb    r0, [r2, #0x18]      @ Pico_mcd->m.bcram_reg
 .else
     strb    r1, [r2, #0x18]
 .endif

Pico/cd/Pico.c

@@ -99,7 +99,7 @@ static __inline void SekRunM68k(int cyc)
   SekCycleCnt+=m68k_execute(cyc_do);
 #elif defined(EMU_F68K)
   g_m68kcontext=&PicoCpuFM68k;
-  SekCycleCnt+=fm68k_emulate(cyc_do);
+  SekCycleCnt+=fm68k_emulate(cyc_do, 0);
 #endif
 }
 
@@ -119,15 +119,22 @@ static __inline void SekRunS68k(int cyc)
   SekCycleCntS68k+=m68k_execute(cyc_do);
 #elif defined(EMU_F68K)
   g_m68kcontext=&PicoCpuFS68k;
-  SekCycleCntS68k+=fm68k_emulate(cyc_do);
+  SekCycleCntS68k+=fm68k_emulate(cyc_do, 0);
 #endif
 }
 
 #define PS_STEP_M68K ((488<<16)/20) // ~24
 //#define PS_STEP_S68K 13
 
-#ifdef _ASM_CD_PICO_C
-void SekRunPS(int cyc_m68k, int cyc_s68k);
+#if defined(_ASM_CD_PICO_C)
+extern void SekRunPS(int cyc_m68k, int cyc_s68k);
+#elif defined(EMU_F68K)
+static __inline void SekRunPS(int cyc_m68k, int cyc_s68k)
+{
+  SekCycleAim+=cyc_m68k;
+  SekCycleAimS68k+=cyc_s68k;
+  fm68k_emulate(0, 1);
+}
 #else
 static __inline void SekRunPS(int cyc_m68k, int cyc_s68k)
 {
@@ -152,7 +159,7 @@ static __inline void SekRunPS(int cyc_m68k, int cyc_s68k)
       SekCycleCnt += m68k_execute(cyc_do);
 #elif defined(EMU_F68K)
       g_m68kcontext = &PicoCpuFM68k;
-      SekCycleCnt += fm68k_emulate(cyc_do);
+      SekCycleCnt += fm68k_emulate(cyc_do, 0);
 #endif
     }
     if ((cyc_do = SekCycleAimS68k-SekCycleCntS68k-cycn_s68k) > 0) {
@@ -165,7 +172,7 @@ static __inline void SekRunPS(int cyc_m68k, int cyc_s68k)
       SekCycleCntS68k += m68k_execute(cyc_do);
 #elif defined(EMU_F68K)
       g_m68kcontext = &PicoCpuFS68k;
-      SekCycleCntS68k += fm68k_emulate(cyc_do);
+      SekCycleCntS68k += fm68k_emulate(cyc_do, 0);
 #endif
     }
   }

Pico/cd/buffering.c

@@ -3,8 +3,6 @@
 
 #include "../PicoInt.h"
 
-//#include <stdlib.h>
-
 int PicoCDBuffers = 0;
 static unsigned char *cd_buffer = NULL;
 static int prev_lba = 0x80000000;
@@ -27,7 +25,7 @@ void PicoCDBufferInit(void)
 	/* try alloc'ing until we succeed */
 	while (PicoCDBuffers > 0)
 	{
-		tmp = realloc(cd_buffer, PicoCDBuffers * 2048);
+		tmp = realloc(cd_buffer, PicoCDBuffers * 2048 + 304);
 		if (tmp != NULL) break;
 		PicoCDBuffers >>= 1;
 	}
@@ -104,11 +102,18 @@ PICO_INTERNAL void PicoCDBufferRead(void *dest, int lba)
 
 	if (is_bin)
 	{
-		int i;
-		for (i = 0; i < read_len; i++)
+		int i = 0;
+#if REDUCE_IO_CALLS
+		int bufs = (read_len*2048+304) / (2048+304);
+		pm_read(cd_buffer, bufs*(2048+304), Pico_mcd->TOC.Tracks[0].F);
+		for (i = 1; i < bufs; i++)
+			// should really use memmove here, but my memcpy32 implementation is also suitable here
+			memcpy32((int *)(cd_buffer + i*2048), (int *)(cd_buffer + i*(2048+304)), 2048/4);
+#endif
+		for (; i < read_len; i++)
 		{
-			pm_read(cd_buffer + i*2048, 2048, Pico_mcd->TOC.Tracks[0].F);
-			pm_seek(Pico_mcd->TOC.Tracks[0].F, 304, SEEK_CUR);
+			pm_read(cd_buffer + i*2048, 2048 + 304, Pico_mcd->TOC.Tracks[0].F);
+			// pm_seek(Pico_mcd->TOC.Tracks[0].F, 304, SEEK_CUR); // seeking is slower, in PSP case even more
 		}
 	}
 	else