kolibrios-fun/contrib/C_Layer/INCLUDE/kolibri_debug.h

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#ifndef KOLIBRI_DEBUG_H
#define KOLIBRI_DEBUG_H
#include <_ansi.h>
#include <reent.h>
#include <stdio.h>
#include <stdarg.h>
/* Write a printf() like function (variable argument list) for
writing to debug board */
static inline void debug_board_write_byte(const char ch){
__asm__ __volatile__(
"int $0x40"
:
:"a"(63), "b"(1), "c"(ch));
}
//added noninline because incofortabre stepping in in debugger
void __attribute__ ((noinline)) debug_board_write_str(const char* str){
while(*str)
debug_board_write_byte(*str++);
}
static inline void debug_board_printf(const char *format,...)
{
va_list ap;
char log_board[300];
va_start (ap, format);
vsprintf(log_board, format, ap);
va_end(ap);
debug_board_write_str(log_board);
}
__attribute__ ((noinline)) void trap(int n)
{
// nothing todo, just see n in debugger. use "bp trap" command
__asm__ __volatile__(
"nop"
:
:"a"(n));
}
#endif /* KOLIBRI_DEBUG_H */