fixed clipping, emuprint for mgba, foo

[gbajam22] / src / debug.c

diff --git a/src/debug.c b/src/debug.c
index e983ff6..9bdf5d1 100644 (file)
--- a/src/debug.c
+++ b/src/debug.c
@@ -1,4 +1,5 @@
 #include <stdio.h>
+#include <string.h>
 #include <ctype.h>
 #include <stdarg.h>
 #include "gbaregs.h"
@@ -130,22 +131,40 @@ int dbg_drawstr(int x, int y, const char *fmt, ...)
 }
 
 #ifdef EMUBUILD
-__attribute__((target("arm")))
+#define REG_DBG_ENABLE REG16(0xfff780)
+#define REG_DBG_FLAGS  REG16(0xfff700)
+#define REG_DBG_STR            REG8(0xfff600)
+
+/*__attribute__((target("arm")))*/
 void emuprint(const char *fmt, ...)
 {
+       static int opened;
        char buf[128];
        va_list ap;
 
+       if(!opened) {
+               REG_DBG_ENABLE = 0xc0de;
+               if(REG_DBG_ENABLE != 0x1dea) {
+                       return;
+               }
+               opened = 1;
+       }
+
        va_start(ap, fmt);
        vsnprintf(buf, sizeof buf, fmt, ap);
        va_end(ap);
 
+       strcpy((char*)0x4fff600, buf);
+       REG_DBG_FLAGS = 0x104;  /* debug message */
+
+       /*
        asm volatile(
                "mov r0, %0\n\t"
                "swi 0xff0000\n\t" :
                : "r" (buf)
                : "r0"
        );
+       */
 }
 #else
 void emuprint(const char *fmt, ...)