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#include <asm/unistd.h>

#ifndef __NR_vfork
#define __NR_vfork __NR_fork /* uClinux-2.0 only has fork which is vfork */
#endif

#ifdef __H8300S__
        .h8300s
#else
        .h8300h
#endif
        .text
        .align 2
        .globl _errno
        .globl _vfork
#if defined __HAVE_ELF__
        .type    vfork,@function
#endif
_vfork:
        mov.l   @sp+, er1
        sub.l   er0,er0
        mov.b   #__NR_vfork,r0l
        trapa   #0
        mov.l   #-4096, er2
        cmp.l   er0,er2
        bcs     fix_errno
        jmp     @er1                     /* don't return,  just jmp directly */
fix_errno:
        neg.l   er0
        mov.l   er0,@_errno
        sub.l   er0,er0
        dec.l   #1,er0
        jmp     @er1                     /* don't return,  just jmp directly */