diff options
Diffstat (limited to 'Core/MdePkg/Library/BaseLib/Ipf/LongJmp.s')
| -rw-r--r-- | Core/MdePkg/Library/BaseLib/Ipf/LongJmp.s | 121 |
1 files changed, 121 insertions, 0 deletions
diff --git a/Core/MdePkg/Library/BaseLib/Ipf/LongJmp.s b/Core/MdePkg/Library/BaseLib/Ipf/LongJmp.s new file mode 100644 index 0000000000..8b5eb6408b --- /dev/null +++ b/Core/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
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