diff options
Diffstat (limited to 'src/cmd/internal/notsha256/sha256block_arm64.s')
| -rw-r--r-- | src/cmd/internal/notsha256/sha256block_arm64.s | 119 |
1 files changed, 119 insertions, 0 deletions
diff --git a/src/cmd/internal/notsha256/sha256block_arm64.s b/src/cmd/internal/notsha256/sha256block_arm64.s new file mode 100644 index 00000000000..d5c1eb0b2e1 --- /dev/null +++ b/src/cmd/internal/notsha256/sha256block_arm64.s @@ -0,0 +1,119 @@ +// Copyright 2017 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. + +#include "textflag.h" + +#define HASHUPDATE \ + SHA256H V9.S4, V3, V2 \ + SHA256H2 V9.S4, V8, V3 \ + VMOV V2.B16, V8.B16 + +// func sha256block(h []uint32, p []byte, k []uint32) +TEXT ·sha256block(SB),NOSPLIT,$0 + MOVD h_base+0(FP), R0 // Hash value first address + MOVD p_base+24(FP), R1 // message first address + MOVD k_base+48(FP), R2 // k constants first address + MOVD p_len+32(FP), R3 // message length + VLD1 (R0), [V0.S4, V1.S4] // load h(a,b,c,d,e,f,g,h) + VLD1.P 64(R2), [V16.S4, V17.S4, V18.S4, V19.S4] + VLD1.P 64(R2), [V20.S4, V21.S4, V22.S4, V23.S4] + VLD1.P 64(R2), [V24.S4, V25.S4, V26.S4, V27.S4] + VLD1 (R2), [V28.S4, V29.S4, V30.S4, V31.S4] //load 64*4bytes K constant(K0-K63) + +blockloop: + + VLD1.P 16(R1), [V4.B16] // load 16bytes message + VLD1.P 16(R1), [V5.B16] // load 16bytes message + VLD1.P 16(R1), [V6.B16] // load 16bytes message + VLD1.P 16(R1), [V7.B16] // load 16bytes message + VMOV V0.B16, V2.B16 // backup: VO h(dcba) + VMOV V1.B16, V3.B16 // backup: V1 h(hgfe) + VMOV V2.B16, V8.B16 + VREV32 V4.B16, V4.B16 // prepare for using message in Byte format + VREV32 V5.B16, V5.B16 + VREV32 V6.B16, V6.B16 + VREV32 V7.B16, V7.B16 + + VADD V16.S4, V4.S4, V9.S4 // V18(W0+K0...W3+K3) + SHA256SU0 V5.S4, V4.S4 // V4: (su0(W1)+W0,...,su0(W4)+W3) + HASHUPDATE // H4 + + VADD V17.S4, V5.S4, V9.S4 // V18(W4+K4...W7+K7) + SHA256SU0 V6.S4, V5.S4 // V5: (su0(W5)+W4,...,su0(W8)+W7) + SHA256SU1 V7.S4, V6.S4, V4.S4 // V4: W16-W19 + HASHUPDATE // H8 + + VADD V18.S4, V6.S4, V9.S4 // V18(W8+K8...W11+K11) + SHA256SU0 V7.S4, V6.S4 // V6: (su0(W9)+W8,...,su0(W12)+W11) + SHA256SU1 V4.S4, V7.S4, V5.S4 // V5: W20-W23 + HASHUPDATE // H12 + + VADD V19.S4, V7.S4, V9.S4 // V18(W12+K12...W15+K15) + SHA256SU0 V4.S4, V7.S4 // V7: (su0(W13)+W12,...,su0(W16)+W15) + SHA256SU1 V5.S4, V4.S4, V6.S4 // V6: W24-W27 + HASHUPDATE // H16 + + VADD V20.S4, V4.S4, V9.S4 // V18(W16+K16...W19+K19) + SHA256SU0 V5.S4, V4.S4 // V4: (su0(W17)+W16,...,su0(W20)+W19) + SHA256SU1 V6.S4, V5.S4, V7.S4 // V7: W28-W31 + HASHUPDATE // H20 + + VADD V21.S4, V5.S4, V9.S4 // V18(W20+K20...W23+K23) + SHA256SU0 V6.S4, V5.S4 // V5: (su0(W21)+W20,...,su0(W24)+W23) + SHA256SU1 V7.S4, V6.S4, V4.S4 // V4: W32-W35 + HASHUPDATE // H24 + + VADD V22.S4, V6.S4, V9.S4 // V18(W24+K24...W27+K27) + SHA256SU0 V7.S4, V6.S4 // V6: (su0(W25)+W24,...,su0(W28)+W27) + SHA256SU1 V4.S4, V7.S4, V5.S4 // V5: W36-W39 + HASHUPDATE // H28 + + VADD V23.S4, V7.S4, V9.S4 // V18(W28+K28...W31+K31) + SHA256SU0 V4.S4, V7.S4 // V7: (su0(W29)+W28,...,su0(W32)+W31) + SHA256SU1 V5.S4, V4.S4, V6.S4 // V6: W40-W43 + HASHUPDATE // H32 + + VADD V24.S4, V4.S4, V9.S4 // V18(W32+K32...W35+K35) + SHA256SU0 V5.S4, V4.S4 // V4: (su0(W33)+W32,...,su0(W36)+W35) + SHA256SU1 V6.S4, V5.S4, V7.S4 // V7: W44-W47 + HASHUPDATE // H36 + + VADD V25.S4, V5.S4, V9.S4 // V18(W36+K36...W39+K39) + SHA256SU0 V6.S4, V5.S4 // V5: (su0(W37)+W36,...,su0(W40)+W39) + SHA256SU1 V7.S4, V6.S4, V4.S4 // V4: W48-W51 + HASHUPDATE // H40 + + VADD V26.S4, V6.S4, V9.S4 // V18(W40+K40...W43+K43) + SHA256SU0 V7.S4, V6.S4 // V6: (su0(W41)+W40,...,su0(W44)+W43) + SHA256SU1 V4.S4, V7.S4, V5.S4 // V5: W52-W55 + HASHUPDATE // H44 + + VADD V27.S4, V7.S4, V9.S4 // V18(W44+K44...W47+K47) + SHA256SU0 V4.S4, V7.S4 // V7: (su0(W45)+W44,...,su0(W48)+W47) + SHA256SU1 V5.S4, V4.S4, V6.S4 // V6: W56-W59 + HASHUPDATE // H48 + + VADD V28.S4, V4.S4, V9.S4 // V18(W48+K48,...,W51+K51) + HASHUPDATE // H52 + SHA256SU1 V6.S4, V5.S4, V7.S4 // V7: W60-W63 + + VADD V29.S4, V5.S4, V9.S4 // V18(W52+K52,...,W55+K55) + HASHUPDATE // H56 + + VADD V30.S4, V6.S4, V9.S4 // V18(W59+K59,...,W59+K59) + HASHUPDATE // H60 + + VADD V31.S4, V7.S4, V9.S4 // V18(W60+K60,...,W63+K63) + HASHUPDATE // H64 + + SUB $64, R3, R3 // message length - 64bytes, then compare with 64bytes + VADD V2.S4, V0.S4, V0.S4 + VADD V3.S4, V1.S4, V1.S4 + CBNZ R3, blockloop + +sha256ret: + + VST1 [V0.S4, V1.S4], (R0) // store hash value H + RET + |