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/*

 * crt0.S -- startup file for D30V systems.

 *

 * Copyright (c) 1997 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.

 */

        .file   "crt0.S"

        .text

        .globl  _start

        .extern main

        .extern exit

        .extern __stack

        .extern __sbss_start

        .extern __sbss_end

        .extern __ebss_start

        .extern __ebss_end

        .extern __bss_start

        .extern __bss_end

        .extern memset

        .type   _start,@function

_start: or.l    sp,r0,__stack

        /* Zero the .sbss area */

        or.l    r2,r0,__sbss_start

        or.l    r4,r0,__sbss_end

        sub     r4,r4,r2        || or.s r3,r0,0

        bsrtnz.l r4,(memset)

        /* Zero the .ebss area */

        or.l    r2,r0,__ebss_start

        or.l    r4,r0,__ebss_end

        sub     r4,r4,r2        || or.s r3,r0,0

        bsrtnz.l r4,(memset)

        /* Zero the .bss area */

        or.l    r2,r0,__bss_start

        or.l    r4,r0,__bss_end

        sub     r4,r4,r2        || or.s r3,r0,0

        bsrtnz.l r4,(memset)

        or.s    r2,r0,0         || or.s r3,r0,0

        or      r4,r0,0         || nop

        jsr.l   (main)

        jsr.l   (exit)

        .size   _start,.-_start