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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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