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[SM4] add comments

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Emman 2022-01-12 16:11:42 +08:00
parent 64cda2957b
commit e0d9d44154
1 changed files with 12 additions and 12 deletions
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24
sm4/gcm_arm64.s
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@ -107,39 +107,39 @@ TEXT ·gcmSm4Finish(SB),NOSPLIT,$0
#undef dlen #undef dlen
#define SM4_SBOX(x, y, z, z1, z2) \ #define SM4_SBOX(x, y, z, z1, z2) \
VMOV $0x0F0F0F0F0F0F0F0F, z1.D2; \ VMOV $0x0F0F0F0F0F0F0F0F, z1.D2; \ // nibble mask
VAND x.B16, z1.B16, z2.B16; \ VAND x.B16, z1.B16, z2.B16; \
MOVD $0x9197E2E474720701, R19; \ MOVD $0x9197E2E474720701, R19; \
VMOV R19, z.D[0]; \ VMOV R19, z.D[0]; \
MOVD $0xC7C1B4B222245157, R19; \ MOVD $0xC7C1B4B222245157, R19; \
VMOV R19, z.D[1]; \ VMOV R19, z.D[1]; \ // m1 low
VTBL z2.B16, [z.B16], y.B16; \ VTBL z2.B16, [z.B16], y.B16; \
VUSHR $4, x.D2, x.D2; \ VUSHR $4, x.D2, x.D2; \
VAND x.B16, z1.B16, z2.B16; \ VAND x.B16, z1.B16, z2.B16; \
MOVD $0xE240AB09EB49A200, R19; \ MOVD $0xE240AB09EB49A200, R19; \
VMOV R19, z.D[0]; \ VMOV R19, z.D[0]; \
MOVD $0xF052B91BF95BB012, R19; \ MOVD $0xF052B91BF95BB012, R19; \
VMOV R19, z.D[1]; \ VMOV R19, z.D[1]; \ // m1 high
VTBL z2.B16, [z.B16], z2.B16; \ VTBL z2.B16, [z.B16], z2.B16; \
VEOR y.B16, z2.B16, x.B16; \ VEOR y.B16, z2.B16, x.B16; \
MOVD $0x0B0E0104070A0D00, R19; \ MOVD $0x0B0E0104070A0D00, R19; \
VMOV R19, z.D[0]; \ VMOV R19, z.D[0]; \
MOVD $0x0306090C0F020508, R19; \ MOVD $0x0306090C0F020508, R19; \
VMOV R19, z.D[1]; \ VMOV R19, z.D[1]; \ // inverse shift row
VTBL z.B16, [x.B16], x.B16; \ VTBL z.B16, [x.B16], x.B16; \
AESE ZERO.B16, x.B16; \ AESE ZERO.B16, x.B16; \
VAND x.B16, z1.B16, z2.B16; \ VAND x.B16, z1.B16, z2.B16; \
MOVD $0x5B67F2CEA19D0834, R19; \ MOVD $0x5B67F2CEA19D0834, R19; \
VMOV R19, z.D[0]; \ VMOV R19, z.D[0]; \
MOVD $0xEDD14478172BBE82, R19; \ MOVD $0xEDD14478172BBE82, R19; \
VMOV R19, z.D[1]; \ VMOV R19, z.D[1]; \ // m2 low
VTBL z2.B16, [z.B16], y.B16; \ VTBL z2.B16, [z.B16], y.B16; \
VUSHR $4, x.D2, x.D2; \ VUSHR $4, x.D2, x.D2; \
VAND x.B16, z1.B16, z2.B16; \ VAND x.B16, z1.B16, z2.B16; \
MOVD $0xAE7201DD73AFDC00, R19; \ MOVD $0xAE7201DD73AFDC00, R19; \
VMOV R19, z.D[0]; \ VMOV R19, z.D[0]; \
MOVD $0x11CDBE62CC1063BF, R19; \ MOVD $0x11CDBE62CC1063BF, R19; \
VMOV R19, z.D[1]; \ VMOV R19, z.D[1]; \ // m2 high
VTBL z2.B16, [z.B16], z2.B16; \ VTBL z2.B16, [z.B16], z2.B16; \
VEOR y.B16, z2.B16, x.B16 VEOR y.B16, z2.B16, x.B16
@ -149,13 +149,13 @@ TEXT ·gcmSm4Finish(SB),NOSPLIT,$0
MOVD $0x0605040702010003, R19; \ MOVD $0x0605040702010003, R19; \
VMOV R19, z.D[0]; \ VMOV R19, z.D[0]; \
MOVD $0x0E0D0C0F0A09080B, R19; \ MOVD $0x0E0D0C0F0A09080B, R19; \
VMOV R19, z.D[1]; \ VMOV R19, z.D[1]; \ // r08 mask
VTBL z.B16, [x.B16], y.B16; \ VTBL z.B16, [x.B16], y.B16; \
VEOR y.B16, x.B16, y.B16; \ VEOR y.B16, x.B16, y.B16; \
MOVD $0x0504070601000302, R19; \ MOVD $0x0504070601000302, R19; \
VMOV R19, z.D[0]; \ VMOV R19, z.D[0]; \
MOVD $0x0D0C0F0E09080B0A , R19; \ MOVD $0x0D0C0F0E09080B0A, R19; \
VMOV R19, z.D[1]; \ VMOV R19, z.D[1]; \ // r16 mask
VTBL z.B16, [x.B16], z.B16; \ VTBL z.B16, [x.B16], z.B16; \
VEOR z.B16, y.B16, y.B16; \ VEOR z.B16, y.B16, y.B16; \
VSHL $2, y.S4, z.S4; \ VSHL $2, y.S4, z.S4; \
@ -164,7 +164,7 @@ TEXT ·gcmSm4Finish(SB),NOSPLIT,$0
MOVD $0x0407060500030201, R19; \ MOVD $0x0407060500030201, R19; \
VMOV R19, z.D[0]; \ VMOV R19, z.D[0]; \
MOVD $0x0C0F0E0D080B0A09, R19; \ MOVD $0x0C0F0E0D080B0A09, R19; \
VMOV R19, z.D[1]; \ VMOV R19, z.D[1]; \ // r24 mask
VTBL z.B16, [x.B16], z.B16; \ VTBL z.B16, [x.B16], z.B16; \
VEOR z.B16, x.B16, x.B16; \ VEOR z.B16, x.B16, x.B16; \
VEOR y.B16, x.B16, x.B16 VEOR y.B16, x.B16, x.B16