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[/] [openrisc/] [trunk/] [gnu-src/] [newlib-1.18.0/] [newlib/] [libc/] [sys/] [h8500hms/] [syscalls.c] - Rev 301
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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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