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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)