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/*
 * simulator.S -- PowerPC simulator system calls.
 *
 * Copyright (c) 1995 Cygnus Support
 *
 * The authors hereby grant permission to use, copy, modify, distribute,
 * and license this software and its documentation for any purpose, provided
 * that existing copyright notices are retained in all copies and that this
 * notice is included verbatim in any distributions. No written agreement,
 * license, or royalty fee is required for any of the authorized uses.
 * Modifications to this software may be copyrighted by their authors
 * and need not follow the licensing terms described here, provided that
 * the new terms are clearly indicated on the first page of each file where
 * they apply.
 */

#include "ppc-asm.h"

FUNC_START(_exit)
        li      r0, 1
        sc

/*
 * Insure that the debugger tells the client that the PC is in _exit,
 * not whatever function happens to follow this function.
 */

0:      trap
        b       0b                      /* we never should return, but... */

FUNC_END(_exit)

FUNC_START(read)
        li      r0,3
        sc
        bns+    0f
        b       FUNC_NAME(_cerror)
0:      blr
FUNC_END(read)

FUNC_START(write)
        li      r0,4
        sc
        bns+    0f
        b       FUNC_NAME(_cerror)
0:      blr
FUNC_END(write)

FUNC_START(open)
        li      r0,5
        sc
        bns+    0f
        b       FUNC_NAME(_cerror)
0:      blr
FUNC_END(open)

FUNC_START(close)
        li      r0,6
        sc
        bns+    0f
        b       FUNC_NAME(_cerror)
0:      blr
FUNC_END(close)

FUNC_START(brk)
        li      r0,17
        sc
        bns+    0f
        b       FUNC_NAME(_cerror)
0:      blr
FUNC_END(brk)

FUNC_START(lseek)
        li      r0,199
        sc
        bns+    0f
        b       FUNC_NAME(_cerror)
0:      blr
FUNC_END(lseek)