X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=pico%2Fpico.c;h=302cc699215a78278e67a3902e3d3e097e34c515;hb=3cf9570bacd8952713106a2a2e3176852d811d18;hp=c919507ea296d24f19c7450b36aff1f108743bfe;hpb=87b0845f3733166b491ae236feb8bc2eb0fca2ec;p=picodrive.git

diff --git a/pico/pico.c b/pico/pico.c
index c919507..302cc69 100644
--- a/pico/pico.c
+++ b/pico/pico.c
@@ -40,8 +40,7 @@ void PicoInit(void)
 
   PicoInitMCD();
   PicoSVPInit();
-
-  SRam.data=0;
+  Pico32xInit();
 }
 
 // to be called once on emu exit
@@ -52,13 +51,12 @@ void PicoExit(void)
   PicoCartUnload();
   z80_exit();
 
-  if (SRam.data) free(SRam.data); SRam.data=0;
+  if (SRam.data)
+    free(SRam.data);
 }
 
 void PicoPower(void)
 {
-  unsigned char sram_reg=Pico.m.sram_reg; // must be preserved
-
   Pico.m.frame_count = 0;
 
   // clear all memory of the emulated machine
@@ -78,7 +76,9 @@ void PicoPower(void)
   if (PicoAHW & PAHW_MCD)
     PicoPowerMCD();
 
-  Pico.m.sram_reg=sram_reg;
+  if (!(PicoOpt & POPT_DIS_32X))
+    PicoPower32x();
+
   PicoReset();
 }
 
@@ -94,14 +94,16 @@ PICO_INTERNAL void PicoDetectRegion(void)
   else
   {
     // Read cartridge region data:
-    int region=PicoRead32(0x1f0);
+    unsigned short *rd = (unsigned short *)(Pico.rom + 0x1f0);
+    int region = (rd[0] << 16) | rd[1];
 
-    for (i=0;i<4;i++)
+    for (i = 0; i < 4; i++)
     {
-      int c=0;
+      int c;
 
-      c=region>>(i<<3); c&=0xff;
-      if (c<=' ') continue;
+      c = region >> (i<<3);
+      c &= 0xff;
+      if (c <= ' ') continue;
 
            if (c=='J')  support|=1;
       else if (c=='U')  support|=4;
@@ -139,8 +141,6 @@ PICO_INTERNAL void PicoDetectRegion(void)
 
 int PicoReset(void)
 {
-  unsigned char sram_reg=Pico.m.sram_reg; // must be preserved
-
   if (Pico.romsize <= 0)
     return 1;
 
@@ -148,7 +148,6 @@ int PicoReset(void)
   if (PicoResetHook)
     PicoResetHook();
 
-  PicoMemReset();
   memset(&PicoPadInt,0,sizeof(PicoPadInt));
   emustatus = 0;
 
@@ -169,6 +168,7 @@ int PicoReset(void)
   Pico.m.dirtyPal = 1;
 
   Pico.m.z80_bank68k = 0;
+  Pico.m.z80_reset = 1;
   memset(Pico.zram, 0, sizeof(Pico.zram)); // ??
 
   PicoDetectRegion();
@@ -191,12 +191,19 @@ int PicoReset(void)
   if (!(PicoOpt & POPT_DIS_IDLE_DET))
     SekInitIdleDet();
 
+  if (!(PicoOpt & POPT_DIS_32X)) {
+    PicoReset32x();
+    return 0;
+  }
+
   // reset sram state; enable sram access by default if it doesn't overlap with ROM
-  Pico.m.sram_reg=sram_reg&0x14;
-  if (!(Pico.m.sram_reg&4) && Pico.romsize <= SRam.start) Pico.m.sram_reg |= 1;
+  Pico.m.sram_reg = 0;
+  if ((SRam.flags & SRF_EEPROM) || Pico.romsize <= SRam.start)
+    Pico.m.sram_reg |= SRR_MAPPED;
 
-  elprintf(EL_STATUS, "sram: det: %i; eeprom: %i; start: %06x; end: %06x",
-    (Pico.m.sram_reg>>4)&1, (Pico.m.sram_reg>>2)&1, SRam.start, SRam.end);
+  if (SRam.flags & SRF_ENABLED)
+    elprintf(EL_STATUS, "sram: %06x - %06x; eeprom: %i", SRam.start, SRam.end,
+      !!(SRam.flags & SRF_EEPROM));
 
   return 0;
 }
@@ -293,20 +300,25 @@ void PicoFrame(void)
 {
   Pico.m.frame_count++;
 
+  if (PicoAHW & PAHW_SMS) {
+    PicoFrameMS();
+    return;
+  }
+
+  // TODO: MCD+32X
   if (PicoAHW & PAHW_MCD) {
     PicoFrameMCD();
     return;
   }
-  else if (PicoAHW & PAHW_SMS) {
-    PicoFrameMS();
+
+  if (PicoAHW & PAHW_32X) {
+    PicoFrame32x();
     return;
   }
 
   //if(Pico.video.reg[12]&0x2) Pico.video.status ^= 0x10; // change odd bit in interlace mode
 
-  if (!(PicoOpt&POPT_ALT_RENDERER))
-    PicoFrameStart();
-
+  PicoFrameStart();
   PicoFrameHints();
 }