1 /// @file 2 /// IPF specific SwitchStack() function 3 /// 4 /// Copyright (c) 2006 - 2012, Intel Corporation. All rights reserved.<BR> 5 /// This program and the accompanying materials 6 /// are licensed and made available under the terms and conditions of the BSD License 7 /// which accompanies this distribution. The full text of the license may be found at 8 /// http://opensource.org/licenses/bsd-license.php. 9 /// 10 /// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, 11 /// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. 12 /// 13 /// Module Name: SwitchStack.s 14 /// 15 /// 16 17 .auto 18 .text 19 20 .proc AsmSwitchStackAndBackingStore 21 .type AsmSwitchStackAndBackingStore, @function 22 .regstk 5, 0, 0, 0 23 AsmSwitchStackAndBackingStore:: 24 mov r14 = ar.rsc 25 movl r2 = ~((((1 << 14) - 1) << 16) | 3) 26 27 mov r17 = in1 28 mov r18 = in2 29 and r2 = r14, r2 30 31 flushrs 32 33 mov ar.rsc = r2 34 mov sp = in3 35 mov r19 = in4 36 37 ld8.nt1 r16 = [in0], 8 38 ld8.nta gp = [in0] 39 mov r3 = -1 40 41 loadrs 42 mov ar.bspstore = r19 43 mov b7 = r16 44 45 alloc r2 = ar.pfs, 0, 0, 2, 0 46 mov out0 = r17 47 mov out1 = r18 48 49 mov ar.rnat = r3 50 mov ar.rsc = r14 51 br.call.sptk.many b0 = b7 52 .endp AsmSwitchStackAndBackingStore 53
