1/// @file 2/// Contains an implementation of longjmp for the Itanium-based architecture. 3/// 4/// Copyright (c) 2006 - 2008, 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: longjmp.s 14/// 15/// 16 17.auto 18.text 19 20.proc InternalLongJump 21.type InternalLongJump, @function 22.regstk 2, 0, 0, 0 23InternalLongJump:: 24 add r10 = 0x10*20 + 8*14, in0 25 movl r2 = ~((((1 << 14) - 1) << 16) | 3) 26 27 ld8.nt1 r14 = [r10], -8*2 // BSP, skip PFS 28 mov r15 = ar.bspstore // BSPSTORE 29 30 ld8.nt1 r17 = [r10], -8 // UNAT after spill 31 mov r16 = ar.rsc // RSC 32 cmp.leu p6 = r14, r15 33 34 ld8.nt1 r18 = [r10], -8 // UNAT 35 ld8.nt1 r25 = [r10], -8 // b5 36 and r2 = r16, r2 37 38 ldf.fill.nt1 f2 = [in0], 0x10 39 ld8.nt1 r24 = [r10], -8 // b4 40 mov b5 = r25 41 42 mov ar.rsc = r2 43 ld8.nt1 r23 = [r10], -8 // b3 44 mov b4 = r24 45 46 ldf.fill.nt1 f3 = [in0], 0x10 47 mov ar.unat = r17 48(p6) br.spnt.many _skip_flushrs 49 50 flushrs 51 mov r15 = ar.bsp // New BSPSTORE 52 53_skip_flushrs: 54 mov r31 = ar.rnat // RNAT 55 loadrs 56 57 ldf.fill.nt1 f4 = [in0], 0x10 58 ld8.nt1 r22 = [r10], -8 59 dep r2 = -1, r14, 3, 6 60 61 ldf.fill.nt1 f5 = [in0], 0x10 62 ld8.nt1 r21 = [r10], -8 63 cmp.ltu p6 = r2, r15 64 65 ld8.nt1 r20 = [r10], -0x10 // skip sp 66(p6) ld8.nta r31 = [r2] 67 mov b3 = r23 68 69 ldf.fill.nt1 f16 = [in0], 0x10 70 ld8.fill.nt1 r7 = [r10], -8 71 mov b2 = r22 72 73 ldf.fill.nt1 f17 = [in0], 0x10 74 ld8.fill.nt1 r6 = [r10], -8 75 mov b1 = r21 76 77 ldf.fill.nt1 f18 = [in0], 0x10 78 ld8.fill.nt1 r5 = [r10], -8 79 mov b0 = r20 80 81 ldf.fill.nt1 f19 = [in0], 0x10 82 ld8.fill.nt1 r4 = [r10], 8*13 83 84 ldf.fill.nt1 f20 = [in0], 0x10 85 ld8.nt1 r19 = [r10], 0x10 // PFS 86 87 ldf.fill.nt1 f21 = [in0], 0x10 88 ld8.nt1 r26 = [r10], 8 // Predicate 89 mov ar.pfs = r19 90 91 ldf.fill.nt1 f22 = [in0], 0x10 92 ld8.nt1 r27 = [r10], 8 // LC 93 mov pr = r26, -1 94 95 ldf.fill.nt1 f23 = [in0], 0x10 96 ld8.nt1 r28 = [r10], -17*8 - 0x10 97 mov ar.lc = r27 98 99 ldf.fill.nt1 f24 = [in0], 0x10 100 ldf.fill.nt1 f25 = [in0], 0x10 101 mov r8 = in1 102 103 ldf.fill.nt1 f26 = [in0], 0x10 104 ldf.fill.nt1 f31 = [r10], -0x10 105 106 ldf.fill.nt1 f27 = [in0], 0x10 107 ldf.fill.nt1 f30 = [r10], -0x10 108 109 ldf.fill.nt1 f28 = [in0] 110 ldf.fill.nt1 f29 = [r10], 0x10*3 + 8*4 111 112 ld8.fill.nt1 sp = [r10] 113 mov ar.unat = r18 114 115 mov ar.bspstore = r14 116 mov ar.rnat = r31 117 118 invala 119 mov ar.rsc = r16 120 br.ret.sptk b0 121.endp 122