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;; Core of the spinlock implementation
;;
;; Copyright (C) 2004 Axis Communications AB.
;;
;; Author: Mikael Starvik
.global cris_spin_lock
.type cris_spin_lock,@function
.global cris_spin_trylock
.type cris_spin_trylock,@function
.text
cris_spin_lock:
clearf p
1: test.b [$r10]
beq 1b
clearf p
ax
clear.b [$r10]
bcs 1b
clearf p
ret
nop
.size cris_spin_lock, . - cris_spin_lock
cris_spin_trylock:
clearf p
1: move.b [$r10], $r11
ax
clear.b [$r10]
bcs 1b
clearf p
ret
movu.b $r11,$r10
.size cris_spin_trylock, . - cris_spin_trylock
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