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/*

 * simulator.S -- m68k simulator system calls.

 *

 * Copyright (c) 1995, 2001 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 "asm.h"

#define SYSCALL(x) .word 0x4afc, x

#define FUNC_START(x) .globl x; x:

#define FUNC_END(x)

#define FUNC_NAME(x) SYM(x)

FUNC_START(_exit)

        SYSCALL(1)

/*

 * Insure that the debugger tells the client that the PC is in _exit,

 * not whatever function happens to follow this function.

 */

0:      nop

        jmp     0b                      /* we never should return, but... */

FUNC_END(_exit)

FUNC_START(read)

        SYSCALL(3)

        bcs     FUNC_NAME(_cerror)

        rts

FUNC_END(read)

FUNC_START(write)

        SYSCALL(4)

        bcs     FUNC_NAME(_cerror)

        rts

FUNC_END(write)

FUNC_START(open)

        SYSCALL(5)

        bcs     FUNC_NAME(_cerror)

        rts

FUNC_END(open)

FUNC_START(close)

        SYSCALL(6)

        bcs     FUNC_NAME(_cerror)

        rts

FUNC_END(close)

FUNC_START(brk)

        SYSCALL(17)

        bcs     FUNC_NAME(_cerror)

        rts

FUNC_END(brk)

FUNC_START(lseek)

        SYSCALL(199)

        bcs     FUNC_NAME(_cerror)

        rts

FUNC_END(lseek)

FUNC_START(fstat)

        SYSCALL(28)

        bcs     FUNC_NAME(_cerror)

        rts

FUNC_END(lseek)

FUNC_START(isatty)

        SYSCALL(29)

        bcs     FUNC_NAME(_cerror)

        rts

FUNC_END(isatty)