// Copyright 2018 The Go Authors. All rights reserved. // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. // // ARM64 version of md5block.go // derived from crypto/md5/md5block_amd64.s //go:build !purego #include "textflag.h" TEXT ·block(SB),NOSPLIT,$0-32 MOVD dig+0(FP), R0 MOVD p+8(FP), R1 MOVD p_len+16(FP), R2 AND $~63, R2 CBZ R2, zero ADD R1, R2, R21 LDPW (0*8)(R0), (R4, R5) LDPW (1*8)(R0), (R6, R7) loop: MOVW R4, R12 MOVW R5, R13 MOVW R6, R14 MOVW R7, R15 MOVW (0*4)(R1), R8 MOVW R7, R9 #define ROUND1(a, b, c, d, index, const, shift) \ ADDW $const, a; \ ADDW R8, a; \ MOVW (index*4)(R1), R8; \ EORW c, R9; \ ANDW b, R9; \ EORW d, R9; \ ADDW R9, a; \ RORW $(32-shift), a; \ MOVW c, R9; \ ADDW b, a ROUND1(R4,R5,R6,R7, 1,0xd76aa478, 7); ROUND1(R7,R4,R5,R6, 2,0xe8c7b756,12); ROUND1(R6,R7,R4,R5, 3,0x242070db,17); ROUND1(R5,R6,R7,R4, 4,0xc1bdceee,22); ROUND1(R4,R5,R6,R7, 5,0xf57c0faf, 7); ROUND1(R7,R4,R5,R6, 6,0x4787c62a,12); ROUND1(R6,R7,R4,R5, 7,0xa8304613,17); ROUND1(R5,R6,R7,R4, 8,0xfd469501,22); ROUND1(R4,R5,R6,R7, 9,0x698098d8, 7); ROUND1(R7,R4,R5,R6,10,0x8b44f7af,12); ROUND1(R6,R7,R4,R5,11,0xffff5bb1,17); ROUND1(R5,R6,R7,R4,12,0x895cd7be,22); ROUND1(R4,R5,R6,R7,13,0x6b901122, 7); ROUND1(R7,R4,R5,R6,14,0xfd987193,12); ROUND1(R6,R7,R4,R5,15,0xa679438e,17); ROUND1(R5,R6,R7,R4, 0,0x49b40821,22); MOVW (1*4)(R1), R8 MOVW R7, R9 MOVW R7, R10 #define ROUND2(a, b, c, d, index, const, shift) \ ADDW $const, a; \ ADDW R8, a; \ MOVW (index*4)(R1), R8; \ ANDW b, R10; \ BICW R9, c, R9; \ ORRW R9, R10; \ MOVW c, R9; \ ADDW R10, a; \ MOVW c, R10; \ RORW $(32-shift), a; \ ADDW b, a ROUND2(R4,R5,R6,R7, 6,0xf61e2562, 5); ROUND2(R7,R4,R5,R6,11,0xc040b340, 9); ROUND2(R6,R7,R4,R5, 0,0x265e5a51,14); ROUND2(R5,R6,R7,R4, 5,0xe9b6c7aa,20); ROUND2(R4,R5,R6,R7,10,0xd62f105d, 5); ROUND2(R7,R4,R5,R6,15, 0x2441453, 9); ROUND2(R6,R7,R4,R5, 4,0xd8a1e681,14); ROUND2(R5,R6,R7,R4, 9,0xe7d3fbc8,20); ROUND2(R4,R5,R6,R7,14,0x21e1cde6, 5); ROUND2(R7,R4,R5,R6, 3,0xc33707d6, 9); ROUND2(R6,R7,R4,R5, 8,0xf4d50d87,14); ROUND2(R5,R6,R7,R4,13,0x455a14ed,20); ROUND2(R4,R5,R6,R7, 2,0xa9e3e905, 5); ROUND2(R7,R4,R5,R6, 7,0xfcefa3f8, 9); ROUND2(R6,R7,R4,R5,12,0x676f02d9,14); ROUND2(R5,R6,R7,R4, 0,0x8d2a4c8a,20); MOVW (5*4)(R1), R8 MOVW R6, R9 #define ROUND3(a, b, c, d, index, const, shift) \ ADDW $const, a; \ ADDW R8, a; \ MOVW (index*4)(R1), R8; \ EORW d, R9; \ EORW b, R9; \ ADDW R9, a; \ RORW $(32-shift), a; \ MOVW b, R9; \ ADDW b, a ROUND3(R4,R5,R6,R7, 8,0xfffa3942, 4); ROUND3(R7,R4,R5,R6,11,0x8771f681,11); ROUND3(R6,R7,R4,R5,14,0x6d9d6122,16); ROUND3(R5,R6,R7,R4, 1,0xfde5380c,23); ROUND3(R4,R5,R6,R7, 4,0xa4beea44, 4); ROUND3(R7,R4,R5,R6, 7,0x4bdecfa9,11); ROUND3(R6,R7,R4,R5,10,0xf6bb4b60,16); ROUND3(R5,R6,R7,R4,13,0xbebfbc70,23); ROUND3(R4,R5,R6,R7, 0,0x289b7ec6, 4); ROUND3(R7,R4,R5,R6, 3,0xeaa127fa,11); ROUND3(R6,R7,R4,R5, 6,0xd4ef3085,16); ROUND3(R5,R6,R7,R4, 9, 0x4881d05,23); ROUND3(R4,R5,R6,R7,12,0xd9d4d039, 4); ROUND3(R7,R4,R5,R6,15,0xe6db99e5,11); ROUND3(R6,R7,R4,R5, 2,0x1fa27cf8,16); ROUND3(R5,R6,R7,R4, 0,0xc4ac5665,23); MOVW (0*4)(R1), R8 MVNW R7, R9 #define ROUND4(a, b, c, d, index, const, shift) \ ADDW $const, a; \ ADDW R8, a; \ MOVW (index*4)(R1), R8; \ ORRW b, R9; \ EORW c, R9; \ ADDW R9, a; \ RORW $(32-shift), a; \ MVNW c, R9; \ ADDW b, a ROUND4(R4,R5,R6,R7, 7,0xf4292244, 6); ROUND4(R7,R4,R5,R6,14,0x432aff97,10); ROUND4(R6,R7,R4,R5, 5,0xab9423a7,15); ROUND4(R5,R6,R7,R4,12,0xfc93a039,21); ROUND4(R4,R5,R6,R7, 3,0x655b59c3, 6); ROUND4(R7,R4,R5,R6,10,0x8f0ccc92,10); ROUND4(R6,R7,R4,R5, 1,0xffeff47d,15); ROUND4(R5,R6,R7,R4, 8,0x85845dd1,21); ROUND4(R4,R5,R6,R7,15,0x6fa87e4f, 6); ROUND4(R7,R4,R5,R6, 6,0xfe2ce6e0,10); ROUND4(R6,R7,R4,R5,13,0xa3014314,15); ROUND4(R5,R6,R7,R4, 4,0x4e0811a1,21); ROUND4(R4,R5,R6,R7,11,0xf7537e82, 6); ROUND4(R7,R4,R5,R6, 2,0xbd3af235,10); ROUND4(R6,R7,R4,R5, 9,0x2ad7d2bb,15); ROUND4(R5,R6,R7,R4, 0,0xeb86d391,21); ADDW R12, R4 ADDW R13, R5 ADDW R14, R6 ADDW R15, R7 ADD $64, R1 CMP R1, R21 BNE loop STPW (R4, R5), (0*8)(R0) STPW (R6, R7), (1*8)(R0) zero: RET