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hex_decode_amd64.s
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// Copyright 2016 Tom Thorogood. All rights reserved.
// Use of this source code is governed by a
// Modified BSD License license that can be found in
// the LICENSE file.
//
// Copyright 2005-2016, Wojciech Muła. All rights reserved.
// Use of this source code is governed by a
// Simplified BSD License license that can be found in
// the LICENSE file.
//
// This file is auto-generated - do not modify
// +build amd64,!gccgo,!appengine
#include "textflag.h"
DATA decodeBase<>+0x00(SB)/8, $0x3030303030303030
DATA decodeBase<>+0x08(SB)/8, $0x3030303030303030
DATA decodeBase<>+0x10(SB)/8, $0x2727272727272727
DATA decodeBase<>+0x18(SB)/8, $0x2727272727272727
GLOBL decodeBase<>(SB),RODATA,$32
DATA decodeToLower<>+0x00(SB)/8, $0x2020202020202020
DATA decodeToLower<>+0x08(SB)/8, $0x2020202020202020
GLOBL decodeToLower<>(SB),RODATA,$16
DATA decodeHigh<>+0x00(SB)/8, $0x0e0c0a0806040200
DATA decodeHigh<>+0x08(SB)/8, $0xffffffffffffffff
GLOBL decodeHigh<>(SB),RODATA,$16
DATA decodeLow<>+0x00(SB)/8, $0x0f0d0b0907050301
DATA decodeLow<>+0x08(SB)/8, $0xffffffffffffffff
GLOBL decodeLow<>(SB),RODATA,$16
DATA decodeValid<>+0x00(SB)/8, $0xb0b0b0b0b0b0b0b0
DATA decodeValid<>+0x08(SB)/8, $0xb0b0b0b0b0b0b0b0
DATA decodeValid<>+0x10(SB)/8, $0xb9b9b9b9b9b9b9b9
DATA decodeValid<>+0x18(SB)/8, $0xb9b9b9b9b9b9b9b9
DATA decodeValid<>+0x20(SB)/8, $0xe1e1e1e1e1e1e1e1
DATA decodeValid<>+0x28(SB)/8, $0xe1e1e1e1e1e1e1e1
DATA decodeValid<>+0x30(SB)/8, $0xe6e6e6e6e6e6e6e6
DATA decodeValid<>+0x38(SB)/8, $0xe6e6e6e6e6e6e6e6
GLOBL decodeValid<>(SB),RODATA,$64
DATA decodeToSigned<>+0x00(SB)/8, $0x8080808080808080
DATA decodeToSigned<>+0x08(SB)/8, $0x8080808080808080
GLOBL decodeToSigned<>(SB),RODATA,$16
TEXT ·decodeAVX(SB),NOSPLIT,$0
MOVQ dst+0(FP), DI
MOVQ src+8(FP), SI
MOVQ len+16(FP), BX
MOVQ SI, R15
MOVOU decodeValid<>(SB), X14
MOVOU decodeValid<>+0x20(SB), X15
MOVW $65535, DX
CMPQ BX, $16
JB tail
bigloop:
MOVOU (SI), X0
VPXOR decodeToSigned<>(SB), X0, X1
POR decodeToLower<>(SB), X0
VPXOR decodeToSigned<>(SB), X0, X2
VPCMPGTB X1, X14, X3
PCMPGTB decodeValid<>+0x10(SB), X1
VPCMPGTB X2, X15, X4
PCMPGTB decodeValid<>+0x30(SB), X2
PAND X4, X1
POR X2, X3
POR X1, X3
PMOVMSKB X3, AX
TESTW AX, DX
JNZ invalid
PSUBB decodeBase<>(SB), X0
PANDN decodeBase<>+0x10(SB), X4
PSUBB X4, X0
VPSHUFB decodeLow<>(SB), X0, X3
PSHUFB decodeHigh<>(SB), X0
PSLLW $4, X0
POR X3, X0
MOVQ X0, (DI)
SUBQ $16, BX
JZ ret
ADDQ $16, SI
ADDQ $8, DI
CMPQ BX, $16
JAE bigloop
tail:
MOVQ $16, CX
SUBQ BX, CX
SHRW CX, DX
CMPQ BX, $4
JB tail_in_2
JE tail_in_4
CMPQ BX, $8
JB tail_in_6
JE tail_in_8
CMPQ BX, $12
JB tail_in_10
JE tail_in_12
tail_in_14:
PINSRW $6, 12(SI), X0
tail_in_12:
PINSRW $5, 10(SI), X0
tail_in_10:
PINSRW $4, 8(SI), X0
tail_in_8:
PINSRQ $0, (SI), X0
JMP tail_conv
tail_in_6:
PINSRW $2, 4(SI), X0
tail_in_4:
PINSRW $1, 2(SI), X0
tail_in_2:
PINSRW $0, (SI), X0
tail_conv:
VPXOR decodeToSigned<>(SB), X0, X1
POR decodeToLower<>(SB), X0
VPXOR decodeToSigned<>(SB), X0, X2
VPCMPGTB X1, X14, X3
PCMPGTB decodeValid<>+0x10(SB), X1
VPCMPGTB X2, X15, X4
PCMPGTB decodeValid<>+0x30(SB), X2
PAND X4, X1
POR X2, X3
POR X1, X3
PMOVMSKB X3, AX
TESTW AX, DX
JNZ invalid
PSUBB decodeBase<>(SB), X0
PANDN decodeBase<>+0x10(SB), X4
PSUBB X4, X0
VPSHUFB decodeLow<>(SB), X0, X3
PSHUFB decodeHigh<>(SB), X0
PSLLW $4, X0
POR X3, X0
CMPQ BX, $4
JB tail_out_2
JE tail_out_4
CMPQ BX, $8
JB tail_out_6
JE tail_out_8
CMPQ BX, $12
JB tail_out_10
JE tail_out_12
tail_out_14:
PEXTRB $6, X0, 6(DI)
tail_out_12:
PEXTRB $5, X0, 5(DI)
tail_out_10:
PEXTRB $4, X0, 4(DI)
tail_out_8:
MOVL X0, (DI)
JMP ret
tail_out_6:
PEXTRB $2, X0, 2(DI)
tail_out_4:
PEXTRB $1, X0, 1(DI)
tail_out_2:
PEXTRB $0, X0, (DI)
ret:
MOVB $1, ok+32(FP)
RET
invalid:
BSFW AX, AX
SUBQ R15, SI
ADDQ SI, AX
MOVQ AX, n+24(FP)
MOVB $0, ok+32(FP)
RET
TEXT ·decodeSSE(SB),NOSPLIT,$0
MOVQ dst+0(FP), DI
MOVQ src+8(FP), SI
MOVQ len+16(FP), BX
MOVQ SI, R15
MOVOU decodeValid<>(SB), X14
MOVOU decodeValid<>+0x20(SB), X15
MOVW $65535, DX
CMPQ BX, $16
JB tail
bigloop:
MOVOU (SI), X0
MOVOU X0, X1
PXOR decodeToSigned<>(SB), X1
POR decodeToLower<>(SB), X0
MOVOU X0, X2
PXOR decodeToSigned<>(SB), X2
MOVOU X14, X3
PCMPGTB X1, X3
PCMPGTB decodeValid<>+0x10(SB), X1
MOVOU X15, X4
PCMPGTB X2, X4
PCMPGTB decodeValid<>+0x30(SB), X2
PAND X4, X1
POR X2, X3
POR X1, X3
PMOVMSKB X3, AX
TESTW AX, DX
JNZ invalid
PSUBB decodeBase<>(SB), X0
PANDN decodeBase<>+0x10(SB), X4
PSUBB X4, X0
MOVOU X0, X3
PSHUFB decodeLow<>(SB), X3
PSHUFB decodeHigh<>(SB), X0
PSLLW $4, X0
POR X3, X0
MOVQ X0, (DI)
SUBQ $16, BX
JZ ret
ADDQ $16, SI
ADDQ $8, DI
CMPQ BX, $16
JAE bigloop
tail:
MOVQ $16, CX
SUBQ BX, CX
SHRW CX, DX
CMPQ BX, $4
JB tail_in_2
JE tail_in_4
CMPQ BX, $8
JB tail_in_6
JE tail_in_8
CMPQ BX, $12
JB tail_in_10
JE tail_in_12
tail_in_14:
PINSRW $6, 12(SI), X0
tail_in_12:
PINSRW $5, 10(SI), X0
tail_in_10:
PINSRW $4, 8(SI), X0
tail_in_8:
PINSRQ $0, (SI), X0
JMP tail_conv
tail_in_6:
PINSRW $2, 4(SI), X0
tail_in_4:
PINSRW $1, 2(SI), X0
tail_in_2:
PINSRW $0, (SI), X0
tail_conv:
MOVOU X0, X1
PXOR decodeToSigned<>(SB), X1
POR decodeToLower<>(SB), X0
MOVOU X0, X2
PXOR decodeToSigned<>(SB), X2
MOVOU X14, X3
PCMPGTB X1, X3
PCMPGTB decodeValid<>+0x10(SB), X1
MOVOU X15, X4
PCMPGTB X2, X4
PCMPGTB decodeValid<>+0x30(SB), X2
PAND X4, X1
POR X2, X3
POR X1, X3
PMOVMSKB X3, AX
TESTW AX, DX
JNZ invalid
PSUBB decodeBase<>(SB), X0
PANDN decodeBase<>+0x10(SB), X4
PSUBB X4, X0
MOVOU X0, X3
PSHUFB decodeLow<>(SB), X3
PSHUFB decodeHigh<>(SB), X0
PSLLW $4, X0
POR X3, X0
CMPQ BX, $4
JB tail_out_2
JE tail_out_4
CMPQ BX, $8
JB tail_out_6
JE tail_out_8
CMPQ BX, $12
JB tail_out_10
JE tail_out_12
tail_out_14:
PEXTRB $6, X0, 6(DI)
tail_out_12:
PEXTRB $5, X0, 5(DI)
tail_out_10:
PEXTRB $4, X0, 4(DI)
tail_out_8:
MOVL X0, (DI)
JMP ret
tail_out_6:
PEXTRB $2, X0, 2(DI)
tail_out_4:
PEXTRB $1, X0, 1(DI)
tail_out_2:
PEXTRB $0, X0, (DI)
ret:
MOVB $1, ok+32(FP)
RET
invalid:
BSFW AX, AX
SUBQ R15, SI
ADDQ SI, AX
MOVQ AX, n+24(FP)
MOVB $0, ok+32(FP)
RET