diff options
Diffstat (limited to '')
-rw-r--r-- | nsprpub/pr/src/md/unix/os_Linux_ia64.s | 71 |
1 files changed, 71 insertions, 0 deletions
diff --git a/nsprpub/pr/src/md/unix/os_Linux_ia64.s b/nsprpub/pr/src/md/unix/os_Linux_ia64.s new file mode 100644 index 0000000000..39b724ae47 --- /dev/null +++ b/nsprpub/pr/src/md/unix/os_Linux_ia64.s @@ -0,0 +1,71 @@ +// -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- +// +// This Source Code Form is subject to the terms of the Mozilla Public +// License, v. 2.0. If a copy of the MPL was not distributed with this +// file, You can obtain one at http://mozilla.org/MPL/2.0/. + +.text + +// PRInt32 _PR_ia64_AtomicIncrement(PRInt32 *val) +// +// Atomically increment the integer pointed to by 'val' and return +// the result of the increment. +// + .align 16 + .global _PR_ia64_AtomicIncrement# + .proc _PR_ia64_AtomicIncrement# +_PR_ia64_AtomicIncrement: + fetchadd4.acq r8 = [r32], 1 ;; + adds r8 = 1, r8 + br.ret.sptk.many b0 + .endp _PR_ia64_AtomicIncrement# + +// PRInt32 _PR_ia64_AtomicDecrement(PRInt32 *val) +// +// Atomically decrement the integer pointed to by 'val' and return +// the result of the decrement. +// + .align 16 + .global _PR_ia64_AtomicDecrement# + .proc _PR_ia64_AtomicDecrement# +_PR_ia64_AtomicDecrement: + fetchadd4.rel r8 = [r32], -1 ;; + adds r8 = -1, r8 + br.ret.sptk.many b0 + .endp _PR_ia64_AtomicDecrement# + +// PRInt32 _PR_ia64_AtomicAdd(PRInt32 *ptr, PRInt32 val) +// +// Atomically add 'val' to the integer pointed to by 'ptr' +// and return the result of the addition. +// + .align 16 + .global _PR_ia64_AtomicAdd# + .proc _PR_ia64_AtomicAdd# +_PR_ia64_AtomicAdd: + ld4 r15 = [r32] ;; +.L3: + mov r14 = r15 + mov ar.ccv = r15 + add r8 = r15, r33 ;; + cmpxchg4.acq r15 = [r32], r8, ar.ccv ;; + cmp4.ne p6, p7 = r15, r14 + (p6) br.cond.dptk .L3 + br.ret.sptk.many b0 + .endp _PR_ia64_AtomicAdd# + +// PRInt32 _PR_ia64_AtomicSet(PRInt32 *val, PRInt32 newval) +// +// Atomically set the integer pointed to by 'val' to the new +// value 'newval' and return the old value. +// + .align 16 + .global _PR_ia64_AtomicSet# + .proc _PR_ia64_AtomicSet# +_PR_ia64_AtomicSet: + xchg4 r8 = [r32], r33 + br.ret.sptk.many b0 + .endp _PR_ia64_AtomicSet# + +// Magic indicating no need for an executable stack +.section .note.GNU-stack, "", @progbits |