diff options
Diffstat (limited to 'src')
| -rw-r--r-- | src/crypto/internal/fips140/subtle/xor_asm.go | 2 | ||||
| -rw-r--r-- | src/crypto/internal/fips140/subtle/xor_generic.go | 2 | ||||
| -rw-r--r-- | src/crypto/internal/fips140/subtle/xor_mipsx.s | 212 |
3 files changed, 214 insertions, 2 deletions
diff --git a/src/crypto/internal/fips140/subtle/xor_asm.go b/src/crypto/internal/fips140/subtle/xor_asm.go index 1ff120edef..4fde85fe2e 100644 --- a/src/crypto/internal/fips140/subtle/xor_asm.go +++ b/src/crypto/internal/fips140/subtle/xor_asm.go @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -//go:build (amd64 || arm64 || loong64 || mips64 || mips64le || ppc64 || ppc64le || riscv64) && !purego +//go:build (amd64 || arm64 || loong64 || mips || mipsle || mips64 || mips64le || ppc64 || ppc64le || riscv64) && !purego package subtle diff --git a/src/crypto/internal/fips140/subtle/xor_generic.go b/src/crypto/internal/fips140/subtle/xor_generic.go index 08af84de2a..ed484bc630 100644 --- a/src/crypto/internal/fips140/subtle/xor_generic.go +++ b/src/crypto/internal/fips140/subtle/xor_generic.go @@ -2,7 +2,7 @@ // Use of this source code is governed by a BSD-style // license that can be found in the LICENSE file. -//go:build (!amd64 && !arm64 && !loong64 && !mips64 && !mips64le && !ppc64 && !ppc64le && !riscv64) || purego +//go:build (!amd64 && !arm64 && !loong64 && !mips && !mipsle && !mips64 && !mips64le && !ppc64 && !ppc64le && !riscv64) || purego package subtle diff --git a/src/crypto/internal/fips140/subtle/xor_mipsx.s b/src/crypto/internal/fips140/subtle/xor_mipsx.s new file mode 100644 index 0000000000..1a6b3f409d --- /dev/null +++ b/src/crypto/internal/fips140/subtle/xor_mipsx.s @@ -0,0 +1,212 @@ +// Copyright 2025 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. + +//go:build (mips || mipsle) && !purego + +#include "textflag.h" + +// func xorBytes(dst, a, b *byte, n int) +TEXT ·xorBytes(SB), NOSPLIT|NOFRAME, $0 + MOVW dst+0(FP), R1 + MOVW a+4(FP), R2 + MOVW b+8(FP), R3 + MOVW n+12(FP), R4 + + SGTU $64, R4, R5 // R5 = 1 if (64 > R4) + BNE R5, xor_32_check +xor_64: + MOVW (R2), R6 + MOVW 4(R2), R7 + MOVW 8(R2), R8 + MOVW 12(R2), R9 + MOVW (R3), R10 + MOVW 4(R3), R11 + MOVW 8(R3), R12 + MOVW 12(R3), R13 + XOR R6, R10 + XOR R7, R11 + XOR R8, R12 + XOR R9, R13 + MOVW R10, (R1) + MOVW R11, 4(R1) + MOVW R12, 8(R1) + MOVW R13, 12(R1) + MOVW 16(R2), R6 + MOVW 20(R2), R7 + MOVW 24(R2), R8 + MOVW 28(R2), R9 + MOVW 16(R3), R10 + MOVW 20(R3), R11 + MOVW 24(R3), R12 + MOVW 28(R3), R13 + XOR R6, R10 + XOR R7, R11 + XOR R8, R12 + XOR R9, R13 + MOVW R10, 16(R1) + MOVW R11, 20(R1) + MOVW R12, 24(R1) + MOVW R13, 28(R1) + MOVW 32(R2), R6 + MOVW 36(R2), R7 + MOVW 40(R2), R8 + MOVW 44(R2), R9 + MOVW 32(R3), R10 + MOVW 36(R3), R11 + MOVW 40(R3), R12 + MOVW 44(R3), R13 + XOR R6, R10 + XOR R7, R11 + XOR R8, R12 + XOR R9, R13 + MOVW R10, 32(R1) + MOVW R11, 36(R1) + MOVW R12, 40(R1) + MOVW R13, 44(R1) + MOVW 48(R2), R6 + MOVW 52(R2), R7 + MOVW 56(R2), R8 + MOVW 60(R2), R9 + MOVW 48(R3), R10 + MOVW 52(R3), R11 + MOVW 56(R3), R12 + MOVW 60(R3), R13 + XOR R6, R10 + XOR R7, R11 + XOR R8, R12 + XOR R9, R13 + MOVW R10, 48(R1) + MOVW R11, 52(R1) + MOVW R12, 56(R1) + MOVW R13, 60(R1) + ADD $64, R2 + ADD $64, R3 + ADD $64, R1 + SUB $64, R4 + SGTU $64, R4, R5 + BEQ R0, R5, xor_64 + BEQ R0, R4, end + +xor_32_check: + SGTU $32, R4, R5 + BNE R5, xor_16_check +xor_32: + MOVW (R2), R6 + MOVW 4(R2), R7 + MOVW 8(R2), R8 + MOVW 12(R2), R9 + MOVW (R3), R10 + MOVW 4(R3), R11 + MOVW 8(R3), R12 + MOVW 12(R3), R13 + XOR R6, R10 + XOR R7, R11 + XOR R8, R12 + XOR R9, R13 + MOVW R10, (R1) + MOVW R11, 4(R1) + MOVW R12, 8(R1) + MOVW R13, 12(R1) + MOVW 16(R2), R6 + MOVW 20(R2), R7 + MOVW 24(R2), R8 + MOVW 28(R2), R9 + MOVW 16(R3), R10 + MOVW 20(R3), R11 + MOVW 24(R3), R12 + MOVW 28(R3), R13 + XOR R6, R10 + XOR R7, R11 + XOR R8, R12 + XOR R9, R13 + MOVW R10, 16(R1) + MOVW R11, 20(R1) + MOVW R12, 24(R1) + MOVW R13, 28(R1) + ADD $32, R2 + ADD $32, R3 + ADD $32, R1 + SUB $32, R4 + BEQ R0, R4, end + +xor_16_check: + SGTU $16, R4, R5 + BNE R5, xor_8_check +xor_16: + MOVW (R2), R6 + MOVW 4(R2), R7 + MOVW 8(R2), R8 + MOVW 12(R2), R9 + MOVW (R3), R10 + MOVW 4(R3), R11 + MOVW 8(R3), R12 + MOVW 12(R3), R13 + XOR R6, R10 + XOR R7, R11 + XOR R8, R12 + XOR R9, R13 + MOVW R10, (R1) + MOVW R11, 4(R1) + MOVW R12, 8(R1) + MOVW R13, 12(R1) + ADD $16, R2 + ADD $16, R3 + ADD $16, R1 + SUB $16, R4 + BEQ R0, R4, end + +xor_8_check: + SGTU $8, R4, R5 + BNE R5, xor_4_check +xor_8: + MOVW (R2), R6 + MOVW 4(R2), R7 + MOVW (R3), R8 + MOVW 4(R3), R9 + XOR R6, R8 + XOR R7, R9 + MOVW R8, (R1) + MOVW R9, 4(R1) + ADD $8, R1 + ADD $8, R2 + ADD $8, R3 + SUB $8, R4 + BEQ R0, R4, end + +xor_4_check: + SGTU $4, R4, R5 + BNE R5, xor_2_check +xor_4: + MOVW (R2), R6 + MOVW (R3), R7 + XOR R6, R7 + MOVW R7, (R1) + ADD $4, R2 + ADD $4, R3 + ADD $4, R1 + SUB $4, R4 + BEQ R0, R4, end + +xor_2_check: + SGTU $2, R4, R5 + BNE R5, xor_1 +xor_2: + MOVH (R2), R6 + MOVH (R3), R7 + XOR R6, R7 + MOVH R7, (R1) + ADD $2, R2 + ADD $2, R3 + ADD $2, R1 + SUB $2, R4 + BEQ R0, R4, end + +xor_1: + MOVB (R2), R6 + MOVB (R3), R7 + XOR R6, R7 + MOVB R7, (R1) + +end: + RET |