diff options
| author | Warner Losh <imp@FreeBSD.org> | 2017-03-07 20:53:26 +0000 |
|---|---|---|
| committer | Warner Losh <imp@FreeBSD.org> | 2017-03-07 20:53:26 +0000 |
| commit | 0499b37cea9ca98acfe36368e521ad36b7783f2d (patch) | |
| tree | 7968fdc8d6edf3e051bbd434a466eca88aacf938 /MdePkg/Library/BaseLib/Ipf/LongJmp.s | |
Notes
Diffstat (limited to 'MdePkg/Library/BaseLib/Ipf/LongJmp.s')
| -rw-r--r-- | MdePkg/Library/BaseLib/Ipf/LongJmp.s | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/MdePkg/Library/BaseLib/Ipf/LongJmp.s b/MdePkg/Library/BaseLib/Ipf/LongJmp.s new file mode 100644 index 000000000000..23a1cc12387a --- /dev/null +++ b/MdePkg/Library/BaseLib/Ipf/LongJmp.s @@ -0,0 +1,121 @@ +/// @file +/// Contains an implementation of longjmp for the Itanium-based architecture. +/// +/// Copyright (c) 2006 - 2008, Intel Corporation. All rights reserved.<BR> +/// This program and the accompanying materials +/// are licensed and made available under the terms and conditions of the BSD License +/// which accompanies this distribution. The full text of the license may be found at +/// http://opensource.org/licenses/bsd-license.php. +/// +/// THE PROGRAM IS DISTRIBUTED UNDER THE BSD LICENSE ON AN "AS IS" BASIS, +/// WITHOUT WARRANTIES OR REPRESENTATIONS OF ANY KIND, EITHER EXPRESS OR IMPLIED. +/// +/// Module Name: longjmp.s +/// +/// + +.auto +.text + +.proc InternalLongJump +.type InternalLongJump, @function +.regstk 2, 0, 0, 0 +InternalLongJump:: + add r10 = 0x10*20 + 8*14, in0 + movl r2 = ~((((1 << 14) - 1) << 16) | 3) + + ld8.nt1 r14 = [r10], -8*2 // BSP, skip PFS + mov r15 = ar.bspstore // BSPSTORE + + ld8.nt1 r17 = [r10], -8 // UNAT after spill + mov r16 = ar.rsc // RSC + cmp.leu p6 = r14, r15 + + ld8.nt1 r18 = [r10], -8 // UNAT + ld8.nt1 r25 = [r10], -8 // b5 + and r2 = r16, r2 + + ldf.fill.nt1 f2 = [in0], 0x10 + ld8.nt1 r24 = [r10], -8 // b4 + mov b5 = r25 + + mov ar.rsc = r2 + ld8.nt1 r23 = [r10], -8 // b3 + mov b4 = r24 + + ldf.fill.nt1 f3 = [in0], 0x10 + mov ar.unat = r17 +(p6) br.spnt.many _skip_flushrs + + flushrs + mov r15 = ar.bsp // New BSPSTORE + +_skip_flushrs: + mov r31 = ar.rnat // RNAT + loadrs + + ldf.fill.nt1 f4 = [in0], 0x10 + ld8.nt1 r22 = [r10], -8 + dep r2 = -1, r14, 3, 6 + + ldf.fill.nt1 f5 = [in0], 0x10 + ld8.nt1 r21 = [r10], -8 + cmp.ltu p6 = r2, r15 + + ld8.nt1 r20 = [r10], -0x10 // skip sp +(p6) ld8.nta r31 = [r2] + mov b3 = r23 + + ldf.fill.nt1 f16 = [in0], 0x10 + ld8.fill.nt1 r7 = [r10], -8 + mov b2 = r22 + + ldf.fill.nt1 f17 = [in0], 0x10 + ld8.fill.nt1 r6 = [r10], -8 + mov b1 = r21 + + ldf.fill.nt1 f18 = [in0], 0x10 + ld8.fill.nt1 r5 = [r10], -8 + mov b0 = r20 + + ldf.fill.nt1 f19 = [in0], 0x10 + ld8.fill.nt1 r4 = [r10], 8*13 + + ldf.fill.nt1 f20 = [in0], 0x10 + ld8.nt1 r19 = [r10], 0x10 // PFS + + ldf.fill.nt1 f21 = [in0], 0x10 + ld8.nt1 r26 = [r10], 8 // Predicate + mov ar.pfs = r19 + + ldf.fill.nt1 f22 = [in0], 0x10 + ld8.nt1 r27 = [r10], 8 // LC + mov pr = r26, -1 + + ldf.fill.nt1 f23 = [in0], 0x10 + ld8.nt1 r28 = [r10], -17*8 - 0x10 + mov ar.lc = r27 + + ldf.fill.nt1 f24 = [in0], 0x10 + ldf.fill.nt1 f25 = [in0], 0x10 + mov r8 = in1 + + ldf.fill.nt1 f26 = [in0], 0x10 + ldf.fill.nt1 f31 = [r10], -0x10 + + ldf.fill.nt1 f27 = [in0], 0x10 + ldf.fill.nt1 f30 = [r10], -0x10 + + ldf.fill.nt1 f28 = [in0] + ldf.fill.nt1 f29 = [r10], 0x10*3 + 8*4 + + ld8.fill.nt1 sp = [r10] + mov ar.unat = r18 + + mov ar.bspstore = r14 + mov ar.rnat = r31 + + invala + mov ar.rsc = r16 + br.ret.sptk b0 +.endp |