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! Copyright (C) 2013 Imagination Technologies Ltd.
! Licensed under LGPL v2.1 or later, see the file COPYING.LIB in this tarball.
#include <pthread-errnos.h>
.text
.global _pthread_spin_trylock
.type _pthread_spin_trylock,function
_pthread_spin_trylock:
1: MOVT D0Re0, #HI(#EBUSY)
ADD D0Re0, D0Re0, #LO(#EBUSY)
LNKGETD D0Ar2, [D1Ar1]
CMP D0Ar2, #0
ADD D0Ar2, D0Ar2, #1
LNKSETDEQ [D1Ar1], D0Ar2
BNE 2f
DEFR D0Ar2, TXSTAT
ANDT D0Ar2, D0Ar2, #HI(0x3f000000)
CMPT D0Ar2, #HI(0x02000000)
BNZ 1b
MOV D0Re0, #0
2: MOV PC, D1RtP
.size _pthread_spin_trylock,.-_pthread_spin_trylock
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