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f1baef62 | 1 | /// @file\r |
2 | /// IPF specific SwitchStack() function\r | |
3 | ///\r | |
4 | /// Copyright (c) 2006, Intel Corporation\r | |
5 | /// All rights reserved. This program and the accompanying materials\r | |
6 | /// are licensed and made available under the terms and conditions of the BSD License\r | |
7 | /// which accompanies this distribution. The full text of the license may be found at\r | |
8 | /// http://opensource.org/licenses/bsd-license.php\r | |
9 | ///\r | |
10 | /// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS,\r | |
11 | /// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED.\r | |
12 | ///\r | |
13 | /// Module Name: SwitchStack.s\r | |
14 | ///\r | |
15 | ///\r | |
16 | \r | |
17 | .auto\r | |
18 | .text\r | |
19 | \r | |
20 | .proc AsmSwitchStackAndBackingStore\r | |
21 | .type AsmSwitchStackAndBackingStore, @function\r | |
22 | .regstk 5, 0, 0, 0\r | |
23 | AsmSwitchStackAndBackingStore::\r | |
24 | mov r14 = ar.rsc\r | |
25 | movl r2 = ~((((1 << 14) - 1) << 16) | 3)\r | |
26 | \r | |
27 | mov r17 = in1\r | |
28 | mov r18 = in2\r | |
29 | and r2 = r14, r2\r | |
30 | \r | |
31 | mov ar.rsc = r2\r | |
32 | mov sp = in3\r | |
33 | mov r19 = in4\r | |
34 | \r | |
35 | ld8.nt1 r16 = [in0], 8\r | |
36 | ld8.nta gp = [in0]\r | |
37 | mov r3 = -1\r | |
38 | \r | |
39 | loadrs\r | |
40 | mov ar.bspstore = r19\r | |
41 | mov b7 = r16\r | |
42 | \r | |
43 | alloc r2 = ar.pfs, 0, 0, 2, 0\r | |
44 | mov out0 = r17\r | |
45 | mov out1 = r18\r | |
46 | \r | |
47 | mov ar.rnat = r3\r | |
48 | mov ar.rsc = r14\r | |
49 | br.call.sptk.many b0 = b7\r | |
50 | .endp AsmSwitchStackAndBackingStore\r |