git.mutantstargoat.com Git - gbajam21/blob - src/debug.c

   1 #include <stdio.h>
   2 #include <stdarg.h>
   3 #include "gbaregs.h"
   4 #include "intr.h"
   5 #include "debug.h"
   6
   7 uint16_t vblperf_color[] = {0x3e0, 0xffc0, 0x3ff, 0x1ff, 0x001f, 0xf81f};
   8
   9 static void vblperf_intr(void)
  10 {
  11         vblperf_count++;
  12 }
  13
  14 void vblperf_start(int palidx)
  15 {
  16         vblperf_palptr = (uint16_t*)CRAM_BG_ADDR + palidx;
  17         intr_disable();
  18         REG_DISPSTAT |= DISPSTAT_IEN_VBLANK;
  19         interrupt(INTR_VBLANK, vblperf_intr);
  20         unmask(INTR_VBLANK);
  21         intr_enable();
  22 }
  23
  24 void vblperf_stop(void)
  25 {
  26         intr_disable();
  27         REG_DISPSTAT &= ~DISPSTAT_IEN_VBLANK;
  28         interrupt(INTR_VBLANK, 0);
  29         mask(INTR_VBLANK);
  30         intr_enable();
  31 }
  32
  33 #ifdef EMUBUILD
  34 __attribute__((target("arm")))
  35 void emuprint(const char *fmt, ...)
  36 {
  37         char buf[128];
  38         va_list arg_list;
  39
  40         va_start(arg_list, fmt);
  41         vsnprintf(buf, 128, fmt, arg_list);
  42         va_end(arg_list);
  43
  44         __asm__ __volatile__(
  45                 "mov r0, %0\n\t"
  46                 "swi 0xff0000\n\t" :
  47                 : "r" (buf)
  48                 : "r0"
  49         );
  50 }
  51 #else
  52 void emuprint(const char *fmt, ...)
  53 {
  54 }
  55 #endif