X-Git-Url: https://notaz.gp2x.de/cgi-bin/gitweb.cgi?a=blobdiff_plain;f=pico%2Fpico_int.h;h=4a4418e4f80c68fd5d349d2bb58d64d71fea6f17;hb=87b0845f3733166b491ae236feb8bc2eb0fca2ec;hp=d3b64a820aa804b4f9a813b0e122edb80d7ee642;hpb=d8f51995c466282c7c93f3666b1bc54b827ec19e;p=picodrive.git

diff --git a/pico/pico_int.h b/pico/pico_int.h
index d3b64a8..4a4418e 100644
--- a/pico/pico_int.h
+++ b/pico/pico_int.h
@@ -272,10 +272,14 @@ struct PicoMisc
 struct Pico
 {
   unsigned char ram[0x10000];  // 0x00000 scratch ram
-  unsigned short vram[0x8000]; // 0x10000
+  union {                      // vram is byteswapped for easier reads when drawing
+    unsigned short vram[0x8000];  // 0x10000
+    unsigned char  vramb[0x4000]; // VRAM in SMS mode
+  };
   unsigned char zram[0x2000];  // 0x20000 Z80 ram
   unsigned char ioports[0x10];
-  unsigned int pad[0x3c];      // unused
+  unsigned char sms_io_ctl;
+  unsigned char pad[0xef];     // unused
   unsigned short cram[0x40];   // 0x22100
   unsigned short vsram[0x40];  // 0x22180
 
@@ -411,6 +415,7 @@ int CM_compareRun(int cyc, int is_sub);
 // draw.c
 PICO_INTERNAL void PicoFrameStart(void);
 void PicoDrawSync(int to, int blank_last_line);
+void BackFill(int reg7, int sh);
 extern int DrawScanline;
 #define MAX_LINE_SPRITES 29
 extern unsigned char HighLnSpr[240][3 + MAX_LINE_SPRITES];
@@ -418,6 +423,12 @@ extern unsigned char HighLnSpr[240][3 + MAX_LINE_SPRITES];
 // draw2.c
 PICO_INTERNAL void PicoFrameFull();
 
+// mode4.c
+void PicoFrameStartMode4(void);
+void PicoLineMode4(int line);
+void PicoDoHighPal555M4(void);
+void PicoDrawSetColorFormatMode4(int which);
+
 // memory.c
 PICO_INTERNAL void PicoInitPc(unsigned int pc);
 PICO_INTERNAL unsigned int PicoCheckPc(unsigned int pc);
@@ -549,8 +560,16 @@ PICO_INTERNAL void PsndReset(void);
 PICO_INTERNAL void PsndDoDAC(int line_to);
 PICO_INTERNAL void PsndClear(void);
 PICO_INTERNAL void PsndGetSamples(int y);
+PICO_INTERNAL void PsndGetSamplesMS(void);
 extern int PsndDacLine;
 
+// sms.c
+void PicoPowerMS(void);
+void PicoResetMS(void);
+void PicoMemSetupMS(void);
+void PicoFrameMS(void);
+void PicoFrameDrawOnlyMS(void);
+
 // emulation event logging
 #ifndef EL_LOGMASK
 #define EL_LOGMASK 0
@@ -596,7 +615,7 @@ extern void lprintf(const char *fmt, ...);
 #define cdprintf(x...)
 #endif
 
-#if defined(__GNUC__) && !defined(ARM)
+#if defined(__GNUC__) && __GNUC__ >= 4 && __GNUC_MINOR__ >= 3
 #define MEMH_FUNC __attribute__((aligned(4)))
 #else
 #define MEMH_FUNC