add package

[bytom/vapor.git] / vendor / github.com / minio / sha256-simd / cpuid_amd64.s

diff --git a/vendor/github.com/minio/sha256-simd/cpuid_amd64.s b/vendor/github.com/minio/sha256-simd/cpuid_amd64.s
new file mode 100644 (file)
index 0000000..b0f4147
--- /dev/null
+++ b/vendor/github.com/minio/sha256-simd/cpuid_amd64.s
@@ -0,0 +1,53 @@
+// The MIT License (MIT)
+//
+// Copyright (c) 2015 Klaus Post
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in all
+// copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+// SOFTWARE.
+
+// +build amd64,!gccgo
+
+// func cpuid(op uint32) (eax, ebx, ecx, edx uint32)
+TEXT ·cpuid(SB), 7, $0
+       XORQ CX, CX
+       MOVL op+0(FP), AX
+       CPUID
+       MOVL AX, eax+8(FP)
+       MOVL BX, ebx+12(FP)
+       MOVL CX, ecx+16(FP)
+       MOVL DX, edx+20(FP)
+       RET
+
+// func cpuidex(op, op2 uint32) (eax, ebx, ecx, edx uint32)
+TEXT ·cpuidex(SB), 7, $0
+       MOVL op+0(FP), AX
+       MOVL op2+4(FP), CX
+       CPUID
+       MOVL AX, eax+8(FP)
+       MOVL BX, ebx+12(FP)
+       MOVL CX, ecx+16(FP)
+       MOVL DX, edx+20(FP)
+       RET
+
+// func xgetbv(index uint32) (eax, edx uint32)
+TEXT ·xgetbv(SB), 7, $0
+       MOVL index+0(FP), CX
+       BYTE $0x0f; BYTE $0x01; BYTE $0xd0 // XGETBV
+       MOVL AX, eax+8(FP)
+       MOVL DX, edx+12(FP)
+       RET