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;
; Port of uClibc for TMS320C6000 DSP architecture
; Copyright (C) 2004 Texas Instruments Incorporated
; Author of TMS320C6000 port: Aurelien Jacquiot
;
; This program is free software; you can redistribute it and/or modify it
; under the terms of the GNU Library General Public License as published by
; the Free Software Foundation; either version 2 of the License, or (at your
; option) any later version.
;
; This program is distributed in the hope that it will be useful, but WITHOUT
; ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
; FITNESS FOR A PARTICULAR PURPOSE. See the GNU Library General Public License
; for more details.
;
; You should have received a copy of the GNU Library General Public License
; along with this program; if not, write to the Free Software Foundation,
; Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
;
; .import __errno_location
.global __vfork
__vfork:
MVK .S2 190,B0 ; __NR_vfork
#ifndef _TMS320C6400_PLUS
MVC .S2 CSR,B2
CLR .S2 B2,0,0,B1
MVC .S2 B1,CSR
MVC .S2 IFR,B1
SET .S2 B1,6,6,B1
MVC .S2 B1,ISR
MVC .S2 B2,CSR
NOP
#else
SWE
#endif
MVK .S2 -4096,B4
CMPGTU .L2X B4,A4,B2 ; check error
[B2] BNOP .S2 B3,5
NEG .S1 A4,A4
STW .D2T1 A4,*B15--[2]
STW .D2T2 B3,*+B15[1]
CALLP .S2 __errno_location,B3
LDW .D2T2 *+B15[1],B3
LDW .D2T1 *++B15[2],A5
NOP 3
BNOP .S2 B3,3
STW .D1T1 A5,*A4
MVK .L1 -1,A4
weak_alias(__vfork,vfork)
libc_hidden_weak(vfork)
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