nsprpub/pr/src/md/unix/os_Irix.s@4ab42b5ab56c (annotated)
nsprpub/pr/src/md/unix/os_Irix.s
Wed, 31 Dec 2014 07:53:36 +0100
- author
- Michael Schloh von Bennewitz <michael@schloh.com>
- date
- Wed, 31 Dec 2014 07:53:36 +0100
- branch
- TOR_BUG_3246
- changeset 5
- 4ab42b5ab56c
- permissions
- -rw-r--r--
Correct small whitespace inconsistency, lost while renaming variables.
| michael@0 | 1 | /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 2 -*- */ |
| michael@0 | 2 | /* This Source Code Form is subject to the terms of the Mozilla Public |
| michael@0 | 3 | * License, v. 2.0. If a copy of the MPL was not distributed with this |
| michael@0 | 4 | * file, You can obtain one at http://mozilla.org/MPL/2.0/. */ |
| michael@0 | 5 | |
| michael@0 | 6 | /* |
| michael@0 | 7 | * Atomically add a new element to the top of the stack |
| michael@0 | 8 | * |
| michael@0 | 9 | * usage : PR_StackPush(listp, elementp); |
| michael@0 | 10 | * ----------------------- |
| michael@0 | 11 | */ |
| michael@0 | 12 | |
| michael@0 | 13 | #include "md/_irix.h" |
| michael@0 | 14 | #ifdef _PR_HAVE_ATOMIC_CAS |
| michael@0 | 15 | |
| michael@0 | 16 | #include <sys/asm.h> |
| michael@0 | 17 | #include <sys/regdef.h> |
| michael@0 | 18 | |
| michael@0 | 19 | LEAF(PR_StackPush) |
| michael@0 | 20 | |
| michael@0 | 21 | retry_push: |
| michael@0 | 22 | .set noreorder |
| michael@0 | 23 | lw v0,0(a0) |
| michael@0 | 24 | li t1,1 |
| michael@0 | 25 | beq v0,t1,retry_push |
| michael@0 | 26 | move t0,a1 |
| michael@0 | 27 | |
| michael@0 | 28 | ll v0,0(a0) |
| michael@0 | 29 | beq v0,t1,retry_push |
| michael@0 | 30 | nop |
| michael@0 | 31 | sc t1,0(a0) |
| michael@0 | 32 | beq t1,0,retry_push |
| michael@0 | 33 | nop |
| michael@0 | 34 | sw v0,0(a1) |
| michael@0 | 35 | sync |
| michael@0 | 36 | sw t0,0(a0) |
| michael@0 | 37 | nop |
| michael@0 | 38 | nop |
| michael@0 | 39 | nop |
| michael@0 | 40 | nop |
| michael@0 | 41 | nop |
| michael@0 | 42 | nop |
| michael@0 | 43 | nop |
| michael@0 | 44 | nop |
| michael@0 | 45 | nop |
| michael@0 | 46 | nop |
| michael@0 | 47 | nop |
| michael@0 | 48 | nop |
| michael@0 | 49 | nop |
| michael@0 | 50 | nop |
| michael@0 | 51 | nop |
| michael@0 | 52 | nop |
| michael@0 | 53 | nop |
| michael@0 | 54 | nop |
| michael@0 | 55 | nop |
| michael@0 | 56 | nop |
| michael@0 | 57 | nop |
| michael@0 | 58 | nop |
| michael@0 | 59 | nop |
| michael@0 | 60 | nop |
| michael@0 | 61 | nop |
| michael@0 | 62 | nop |
| michael@0 | 63 | nop |
| michael@0 | 64 | nop |
| michael@0 | 65 | jr ra |
| michael@0 | 66 | nop |
| michael@0 | 67 | |
| michael@0 | 68 | END(PR_StackPush) |
| michael@0 | 69 | |
| michael@0 | 70 | /* |
| michael@0 | 71 | * |
| michael@0 | 72 | * Atomically remove the element at the top of the stack |
| michael@0 | 73 | * |
| michael@0 | 74 | * usage : elemep = PR_StackPop(listp); |
| michael@0 | 75 | * |
| michael@0 | 76 | */ |
| michael@0 | 77 | |
| michael@0 | 78 | LEAF(PR_StackPop) |
| michael@0 | 79 | retry_pop: |
| michael@0 | 80 | .set noreorder |
| michael@0 | 81 | |
| michael@0 | 82 | |
| michael@0 | 83 | lw v0,0(a0) |
| michael@0 | 84 | li t1,1 |
| michael@0 | 85 | beq v0,0,done |
| michael@0 | 86 | nop |
| michael@0 | 87 | beq v0,t1,retry_pop |
| michael@0 | 88 | nop |
| michael@0 | 89 | |
| michael@0 | 90 | ll v0,0(a0) |
| michael@0 | 91 | beq v0,0,done |
| michael@0 | 92 | nop |
| michael@0 | 93 | beq v0,t1,retry_pop |
| michael@0 | 94 | nop |
| michael@0 | 95 | sc t1,0(a0) |
| michael@0 | 96 | beq t1,0,retry_pop |
| michael@0 | 97 | nop |
| michael@0 | 98 | lw t0,0(v0) |
| michael@0 | 99 | sw t0,0(a0) |
| michael@0 | 100 | done: |
| michael@0 | 101 | nop |
| michael@0 | 102 | nop |
| michael@0 | 103 | nop |
| michael@0 | 104 | nop |
| michael@0 | 105 | nop |
| michael@0 | 106 | nop |
| michael@0 | 107 | nop |
| michael@0 | 108 | nop |
| michael@0 | 109 | nop |
| michael@0 | 110 | nop |
| michael@0 | 111 | nop |
| michael@0 | 112 | nop |
| michael@0 | 113 | nop |
| michael@0 | 114 | nop |
| michael@0 | 115 | nop |
| michael@0 | 116 | nop |
| michael@0 | 117 | nop |
| michael@0 | 118 | nop |
| michael@0 | 119 | nop |
| michael@0 | 120 | nop |
| michael@0 | 121 | nop |
| michael@0 | 122 | nop |
| michael@0 | 123 | nop |
| michael@0 | 124 | nop |
| michael@0 | 125 | nop |
| michael@0 | 126 | nop |
| michael@0 | 127 | nop |
| michael@0 | 128 | nop |
| michael@0 | 129 | jr ra |
| michael@0 | 130 | nop |
| michael@0 | 131 | |
| michael@0 | 132 | END(PR_StackPop) |
| michael@0 | 133 | |
| michael@0 | 134 | #endif /* _PR_HAVE_ATOMIC_CAS */ |
