wram analysis

snes/wram/main.c

@@ -0,0 +1,128 @@
+
+#include <stdlib.h>
+#include <string.h>
+#include <time.h>
+
+#include "data.h";
+#include "pad.h";
+#include "event.h";
+#include "myEvents.h";
+#include "ressource.h";
+#include "PPU.h"
+#include "debug.h"
+#include "integer.h"
+
+
+
+typedef void (*FUNC) (void);
+
+padStatus pad1;
+
+void initInternalRegisters(void)
+{
+    characterLocation[0] = 0x0000;
+    characterLocation[1] = 0x0000;
+    characterLocation[2] = 0x0000;
+    characterLocation[3] = 0x0000;
+    debug_init();
+}
+
+void preInit(void)
+{
+
+    // For testing purpose ... 
+    // Insert code here to be executed before register init
+} 
+
+void halt(void)
+{
+    while (1);
+}
+
+void wait(void)
+{
+    printfc("SNES::wait: press A to continue\n");
+    enablePad();
+    pad1 = readPad((byte) 0);
+    while (!pad1.A) {
+        waitForVBlank();
+        pad1 = readPad((byte) 0);
+    }
+    printfc("SNES::wait: done\n");
+}
+
+void boot(DWORD addr)
+{
+    FUNC fn;
+    //printfc("SNES::boot addr=%lx\n", addr);
+    fn = (FUNC) addr;
+    fn();
+
+} 
+void main(void)
+{
+    unsigned char i,j;
+    unsigned long addr;
+    initInternalRegisters();
+    *(byte *) 0x2105 = 0x01;    // MODE 1 value
+    *(byte *) 0x212c = 0x01;    // Plane 0 (bit one) enable register
+    *(byte *) 0x212d = 0x00;    // All subPlane disable
+    *(byte *) 0x2100 = 0x0f;    // enable background
+
+    debug_enable();
+#if 0    
+    addr = 0x008000;
+    for (i=0;i<28;i++){
+        printfs(i,"ROW %02i %02X %08li %06lX",i,i,addr,addr);
+        printfc("ROW %02i %02X %08li %06lX\n",i,i,addr,addr);
+        addr += 0x10000;
+    }
+#endif
+
+#define START_ADDR 0x020000
+#define END_ADDR   0x7f2000
+    addr = 0x000000;
+    i=0;
+    j=0;
+    for (addr=START_ADDR; addr < END_ADDR; addr+=0x1000){
+        if (addr > START_ADDR && addr%0x2000==0){
+            //printfc("hit %06lx\n",addr);
+            addr += 0x10000 - 0x2000;
+            j++;
+            if (j>26)
+                j=0;
+        }
+        i++;
+        printfc("fill mem=%06lx tag=%02x tag=%i \n", addr, i, i);
+        *(byte *) (addr) = i;
+    }
+    i=0;
+    j=0;
+    for (addr=START_ADDR; addr < END_ADDR; addr+=0x1000){
+        if (addr > START_ADDR && addr%0x2000==0){
+            addr += 0x10000 - 0x2000;
+            i++;
+            j++;
+            if (j>26)
+                j=0;
+        }
+        printfs(j,"DUMP %06lX ",addr);
+        printc_packet(addr,16,(byte *) (addr));
+    }
+    
+    
+    while (1) {
+        wait();
+    }
+}
+
+void IRQHandler(void)
+{
+
+}
+
+void NMIHandler(void)
+{
+
+    // processEvents();
+}