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#include <_ansi.h>
#include <sys/types.h>
#include <sys/stat.h>
#include <unistd.h>
int
_read (file, ptr, len)
int file;
char *ptr;
size_t len;
{
return 0;
}
int
_lseek (file, ptr, dir)
int file;
int ptr;
int dir;
{
return 0;
}
static
writechar (c)
char c;
{
register int n asm ("r3");
n = c;
asm ("clr.w r1;mov.w %0,r0; mov.w #6,r3; trapa #15": :"g" (n) : "r3","r1","r0");
}
int
_write (file, ptr, len)
int file;
char *ptr;
size_t len;
{
int todo;
for (todo = 0; todo < len; todo++)
{
writechar (*ptr++);
}
return len;
}
int
_close (file)
int file;
{
return -1;
}
caddr_t
_sbrk (incr)
size_t incr;
{
extern char end; /* Defined by the linker */
static char *heap_end;
char *prev_heap_end;
if (heap_end == 0)
{
heap_end = &end;
}
prev_heap_end = heap_end;
if (heap_end + incr > stack_ptr)
{
_write (1, "Heap and stack collision\n", 25);
abort ();
}
heap_end += incr;
return (caddr_t) prev_heap_end;
}
int
_isatty (file)
int file;
{
return 1;
}
int
_fstat (file, stat)
int file;
struct stat *stat;
{
stat->st_mode = S_IFCHR;
return 0;
}
int
_open (path, flags)
const char *path;
int flags;
{
return 0;
}
void
_exit (status)
int status;
{
asm (" mov.w #33,r3; trapa #15");
}
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