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#include "textflag.h"
#define ROUND()\
ADD.S R2,R0,R0;\
ADC R3,R1,R1;\
EOR R2<<13,R0,R8;\
EOR R3>>19,R8,R8;\
EOR R2>>19,R1,R11;\
EOR R3<<13,R11,R11;\
ADD.S R6,R4,R4;\
ADC R7,R5,R5;\
EOR R6<<16,R4,R2;\
EOR R7>>16,R2,R2;\
EOR R6>>16,R5,R3;\
EOR R7<<16,R3,R3;\
ADD.S R2,R1,R1;\
ADC R3,R0,R0;\
EOR R2<<21,R1,R6;\
EOR R3>>11,R6,R6;\
EOR R2>>11,R0,R7;\
EOR R3<<21,R7,R7;\
ADD.S R8,R4,R4;\
ADC R11,R5,R5;\
EOR R8<<17,R4,R2;\
EOR R11>>15,R2,R2;\
EOR R8>>15,R5,R3;\
EOR R11<<17,R3,R3;\
ADD.S R2,R1,R1;\
ADC R3,R0,R0;\
EOR R2<<13,R1,R8;\
EOR R3>>19,R8,R8;\
EOR R2>>19,R0,R11;\
EOR R3<<13,R11,R11;\
ADD.S R6,R5,R5;\
ADC R7,R4,R4;\
EOR R6<<16,R5,R2;\
EOR R7>>16,R2,R2;\
EOR R6>>16,R4,R3;\
EOR R7<<16,R3,R3;\
ADD.S R2,R0,R0;\
ADC R3,R1,R1;\
EOR R2<<21,R0,R6;\
EOR R3>>11,R6,R6;\
EOR R2>>11,R1,R7;\
EOR R3<<21,R7,R7;\
ADD.S R8,R5,R5;\
ADC R11,R4,R4;\
EOR R8<<17,R5,R2;\
EOR R11>>15,R2,R2;\
EOR R8>>15,R4,R3;\
EOR R11<<17,R3,R3;
// once(d *digest)
TEXT ·once(SB),NOSPLIT,$4-4
MOVW d+0(FP),R8
MOVM.IA (R8),[R0,R1,R2,R3,R4,R5,R6,R7]
MOVW 48(R8),R12
MOVW 52(R8),R14
EOR R12,R6,R6
EOR R14,R7,R7
ROUND()
EOR R12,R0,R0
EOR R14,R1,R1
MOVW d+0(FP),R8
MOVM.IA [R0,R1,R2,R3,R4,R5,R6,R7],(R8)
RET
// finalize(d *digest) uint64
TEXT ·finalize(SB),NOSPLIT,$4-12
MOVW d+0(FP),R8
MOVM.IA (R8),[R0,R1,R2,R3,R4,R5,R6,R7]
MOVW 48(R8),R12
MOVW 52(R8),R14
EOR R12,R6,R6
EOR R14,R7,R7
ROUND()
EOR R12,R0,R0
EOR R14,R1,R1
EOR $255,R4
ROUND()
ROUND()
EOR R2,R0,R0
EOR R3,R1,R1
EOR R6,R4,R4
EOR R7,R5,R5
EOR R4,R0,R0
EOR R5,R1,R1
MOVW R0,ret_lo+4(FP)
MOVW R1,ret_hi+8(FP)
RET
// blocks(d *digest, data []uint8)
TEXT ·blocks(SB),NOSPLIT,$8-16
MOVW R9,sav-8(SP)
MOVW d+0(FP),R8
MOVM.IA (R8),[R0,R1,R2,R3,R4,R5,R6,R7]
MOVW p+4(FP),R9
MOVW p_len+8(FP),R11
ADD R9,R11,R11
MOVW R11,endp-4(SP)
AND.S $3,R9,R8
BNE blocksunaligned
blocksloop:
MOVM.IA.W (R9),[R12,R14]
EOR R12,R6,R6
EOR R14,R7,R7
ROUND()
EOR R12,R0,R0
EOR R14,R1,R1
MOVW endp-4(SP),R11
CMP R11,R9
BLO blocksloop
MOVW d+0(FP),R8
MOVM.IA [R0,R1,R2,R3,R4,R5,R6,R7],(R8)
MOVW sav-8(SP),R9
RET
blocksunaligned:
MOVBU (R9),R12
MOVBU 1(R9),R11
ORR R11<<8,R12,R12
MOVBU 2(R9),R11
ORR R11<<16,R12,R12
MOVBU 3(R9),R11
ORR R11<<24,R12,R12
MOVBU 4(R9),R14
MOVBU 5(R9),R11
ORR R11<<8,R14,R14
MOVBU 6(R9),R11
ORR R11<<16,R14,R14
MOVBU 7(R9),R11
ORR R11<<24,R14,R14
ADD $8,R9,R9
EOR R12,R6,R6
EOR R14,R7,R7
ROUND()
EOR R12,R0,R0
EOR R14,R1,R1
MOVW endp-4(SP),R11
CMP R11,R9
BLO blocksunaligned
MOVW d+0(FP),R8
MOVM.IA [R0,R1,R2,R3,R4,R5,R6,R7],(R8)
MOVW sav-8(SP),R9
RET
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