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50 lines
899 B
ArmAsm
50 lines
899 B
ArmAsm
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// Copyright (c) 2016 Andreas Auernhammer. All rights reserved.
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// Use of this source code is governed by a license that can be
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// found in the LICENSE file.
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// +build amd64, !gccgo, !appengine
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#define ROUND(v0, v1, v2, v3) \
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ADDQ v1, v0; \
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ADDQ v3, v2; \
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ROLQ $13, v1; \
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ROLQ $16, v3; \
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XORQ v0, v1; \
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XORQ v2, v3; \
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ROLQ $32, v0; \
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ADDQ v1, v2; \
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ADDQ v3, v0; \
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ROLQ $17, v1; \
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ROLQ $21, v3; \
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XORQ v2, v1; \
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XORQ v0, v3; \
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ROLQ $32, v2
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// core(hVal *[4]uint64, msg []byte)
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TEXT ·core(SB), 4, $0-32
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MOVQ hVal+0(FP), AX
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MOVQ msg_base+8(FP), SI
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MOVQ msg_len+16(FP), BX
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MOVQ 0(AX), R9
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MOVQ 8(AX), R10
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MOVQ 16(AX), R11
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MOVQ 24(AX), R12
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ANDQ $-8, BX
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loop:
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MOVQ 0(SI), DX
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XORQ DX, R12
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ROUND(R9, R10, R11, R12)
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ROUND(R9, R10, R11, R12)
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XORQ DX, R9
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LEAQ 8(SI), SI
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SUBQ $8, BX
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JNZ loop
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MOVQ R9, 0(AX)
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MOVQ R10, 8(AX)
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MOVQ R11, 16(AX)
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MOVQ R12, 24(AX)
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RET
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