161 lines
2.7 KiB
ArmAsm
161 lines
2.7 KiB
ArmAsm
#include "textflag.h"
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#define R10 g
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#define ROUND()\
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ADD.S R2,R0,R0;\
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ADC R3,R1,R1;\
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EOR R2<<13,R0,R8;\
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EOR R3>>19,R8,R8;\
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EOR R2>>19,R1,R11;\
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EOR R3<<13,R11,R11;\
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ADD.S R6,R4,R4;\
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ADC R7,R5,R5;\
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EOR R6<<16,R4,R2;\
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EOR R7>>16,R2,R2;\
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EOR R6>>16,R5,R3;\
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EOR R7<<16,R3,R3;\
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ADD.S R2,R1,R1;\
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ADC R3,R0,R0;\
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EOR R2<<21,R1,R6;\
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EOR R3>>11,R6,R6;\
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EOR R2>>11,R0,R7;\
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EOR R3<<21,R7,R7;\
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ADD.S R8,R4,R4;\
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ADC R11,R5,R5;\
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EOR R8<<17,R4,R2;\
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EOR R11>>15,R2,R2;\
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EOR R8>>15,R5,R3;\
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EOR R11<<17,R3,R3;\
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ADD.S R2,R1,R1;\
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ADC R3,R0,R0;\
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EOR R2<<13,R1,R8;\
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EOR R3>>19,R8,R8;\
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EOR R2>>19,R0,R11;\
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EOR R3<<13,R11,R11;\
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ADD.S R6,R5,R5;\
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ADC R7,R4,R4;\
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EOR R6<<16,R5,R2;\
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EOR R7>>16,R2,R2;\
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EOR R6>>16,R4,R3;\
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EOR R7<<16,R3,R3;\
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ADD.S R2,R0,R0;\
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ADC R3,R1,R1;\
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EOR R2<<21,R0,R6;\
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EOR R3>>11,R6,R6;\
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EOR R2>>11,R1,R7;\
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EOR R3<<21,R7,R7;\
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ADD.S R8,R5,R5;\
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ADC R11,R4,R4;\
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EOR R8<<17,R5,R2;\
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EOR R11>>15,R2,R2;\
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EOR R8>>15,R4,R3;\
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EOR R11<<17,R3,R3;\
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// Hash(k0, k1 uint64, b []byte) uint64
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TEXT ·Hash(SB),NOSPLIT,$8-36
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MOVW R10,sav-8(SP)
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MOVW k0_lo+0(FP),R12
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MOVW k0_hi+4(FP),R14
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MOVW $0x70736575,R0
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MOVW $0x736f6d65,R1
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MOVW $0x6e657261,R4
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MOVW $0x6c796765,R5
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EOR R12,R0,R0
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EOR R14,R1,R1
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EOR R12,R4,R4
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EOR R14,R5,R5
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MOVW k1_lo+8(FP),R12
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MOVW k1_hi+12(FP),R14
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MOVW $0x6e646f6d,R2
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MOVW $0x646f7261,R3
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MOVW $0x79746573,R6
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MOVW $0x74656462,R7
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EOR R12,R2,R2
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EOR R14,R3,R3
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EOR R12,R6,R6
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EOR R14,R7,R7
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MOVW b+16(FP),R10
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MOVW b_len+20(FP),R11
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ADD R10,R11,R11
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MOVW R11,endb-4(SP)
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AND.S $3,R10,R8
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BNE hashloopunaligned
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hashloop:
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MOVW endb-4(SP),R11
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SUB R10,R11,R11
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SUB.S $8,R11
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BLO hashend
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MOVM.IA.W (R10),[R12,R14]
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EOR R12,R6,R6
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EOR R14,R7,R7
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ROUND()
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EOR R12,R0,R0
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EOR R14,R1,R1
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B hashloop
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hashloopunaligned:
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MOVW endb-4(SP),R11
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SUB R10,R11,R11
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SUB.S $8,R11
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BLO hashend
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MOVB (R10),R12
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MOVB 1(R10),R11
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ORR R11<<8,R12,R12
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MOVB 2(R10),R11
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ORR R11<<16,R12,R12
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MOVB 3(R10),R11
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ORR R11<<24,R12,R12
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MOVB 4(R10),R14
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MOVB 5(R10),R11
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ORR R11<<8,R14,R14
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MOVB 6(R10),R11
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ORR R11<<16,R14,R14
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MOVB 7(R10),R11
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ORR R11<<24,R14,R14
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ADD $8,R10,R10
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EOR R12,R6,R6
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EOR R14,R7,R7
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ROUND()
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EOR R12,R0,R0
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EOR R14,R1,R1
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B hashloopunaligned
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hashend:
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MOVW $0x0,R12
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MOVW $0x0,R14
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RSB $0,R11,R11
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AND.S $7,R11
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BEQ hashlast
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MOVW (R10),R12
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SLL $3,R11
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AND $63,R11
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SUB.S $32,R11,R11
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BEQ hashlast
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BLO hashhi
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MOVW R12<<R11,R12
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MOVW R12>>R11,R12
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B hashlast
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hashhi:
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ADD $32,R11
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MOVW 4(R10),R14
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MOVW R14<<R11,R14
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MOVW R14>>R11,R14
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hashlast:
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MOVW b_len+20(FP),R11
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ORR R11<<24,R14,R14
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EOR R12,R6,R6
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EOR R14,R7,R7
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ROUND()
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EOR R12,R0,R0
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EOR R14,R1,R1
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EOR $255,R4
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ROUND()
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ROUND()
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EOR R2,R0,R0
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EOR R3,R1,R1
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EOR R6,R4,R4
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EOR R7,R5,R5
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EOR R4,R0,R0
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EOR R5,R1,R1
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MOVW sav-8(SP),R10
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MOVW R0,ret_lo+28(FP)
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MOVW R1,ret_hi+32(FP)
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RET
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