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MAGIC - optimize sm2P256SqrInternal

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emmansun 2021-02-12 12:59:25 +08:00
parent 885cb37c5a
commit aa6b436714
1 changed files with 72 additions and 84 deletions
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156
sm2/p256_asm_amd64.s
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@ -1753,93 +1753,81 @@ TEXT sm2P256SqrInternal(SB),NOSPLIT,$0
ADCQ mul0, t2
ADCQ DX, t3
// First reduction step
MOVQ p256p<>+0x08(SB), mul0
MULQ acc0
ADDQ acc0, acc1
ADCQ $0, mul1
ADDQ mul0, acc1
ADCQ $0, mul1
MOVQ mul1, hlp
MOVQ p256p<>+0x010(SB), mul0
MULQ acc0
ADDQ hlp, acc2
ADCQ $0, mul1
ADDQ mul0, acc2
ADCQ $0, mul1
MOVQ mul1, hlp
MOVQ p256p<>+0x018(SB), mul0
MULQ acc0
MOVQ acc0, hlp
MOVQ hlp, mul0
MOVQ hlp, mul1
SHLQ $32, mul0
SHRQ $32, mul1
ADDQ hlp, acc1
ADCQ $0, acc2
SUBQ mul0, acc1
SBBQ mul1, acc2
ADDQ hlp, acc3
ADCQ $0, mul1
ADDQ mul0, acc3
ADCQ $0, mul1
MOVQ mul1, acc0
ADCQ $0, acc0
SUBQ mul0, acc3
SBBQ mul1, acc0
SUBQ hlp, acc3
SBBQ $0, acc0
// Second reduction step
MOVQ p256p<>+0x08(SB), mul0
MULQ acc1
ADDQ acc1, acc2
ADCQ $0, mul1
ADDQ mul0, acc2
ADCQ $0, mul1
MOVQ mul1, hlp
MOVQ p256p<>+0x010(SB), mul0
MULQ acc1
ADDQ hlp, acc3
ADCQ $0, mul1
ADDQ mul0, acc3
ADCQ $0, mul1
MOVQ mul1, hlp
MOVQ p256p<>+0x018(SB), mul0
MULQ acc1
ADDQ hlp, acc0
ADCQ $0, mul1
ADDQ mul0, acc0
ADCQ $0, mul1
MOVQ mul1, acc1
// Third reduction step
MOVQ p256p<>+0x08(SB), mul0
MULQ acc2
ADDQ acc2, acc3
ADCQ $0, mul1
ADDQ mul0, acc3
ADCQ $0, mul1
MOVQ mul1, hlp
MOVQ p256p<>+0x010(SB), mul0
MULQ acc2
ADDQ hlp, acc0
ADCQ $0, mul1
ADDQ mul0, acc0
ADCQ $0, mul1
MOVQ mul1, hlp
MOVQ p256p<>+0x018(SB), mul0
MULQ acc2
ADDQ hlp, acc1
ADCQ $0, mul1
ADDQ mul0, acc1
ADCQ $0, mul1
MOVQ mul1, acc2
// Last reduction step
MOVQ p256p<>+0x08(SB), mul0
MULQ acc3
ADDQ acc3, acc0
ADCQ $0, mul1
ADDQ mul0, acc0
ADCQ $0, mul1
MOVQ mul1, hlp
MOVQ p256p<>+0x010(SB), mul0
MULQ acc3
ADDQ hlp, acc1
ADCQ $0, mul1
ADDQ mul0, acc1
ADCQ $0, mul1
MOVQ mul1, hlp
MOVQ p256p<>+0x018(SB), mul0
MULQ acc3
MOVQ acc1, hlp
MOVQ hlp, mul0
MOVQ hlp, mul1
SHLQ $32, mul0
SHRQ $32, mul1
ADDQ hlp, acc2
ADCQ $0, mul1
ADDQ mul0, acc2
ADCQ $0, mul1
MOVQ mul1, acc3
ADCQ $0, acc3
SUBQ mul0, acc2
SBBQ mul1, acc3
ADDQ hlp, acc0
ADCQ $0, acc1
SUBQ mul0, acc0
SBBQ mul1, acc1
SUBQ hlp, acc0
SBBQ $0, acc1
// Third reduction step
MOVQ acc2, hlp
MOVQ hlp, mul0
MOVQ hlp, mul1
SHLQ $32, mul0
SHRQ $32, mul1
ADDQ hlp, acc3
ADCQ $0, acc0
SUBQ mul0, acc3
SBBQ mul1, acc0
ADDQ hlp, acc1
ADCQ $0, acc2
SUBQ mul0, acc1
SBBQ mul1, acc2
SUBQ hlp, acc1
SBBQ $0, acc2
// Last reduction step
MOVQ acc3, hlp
MOVQ hlp, mul0
MOVQ hlp, mul1
SHLQ $32, mul0
SHRQ $32, mul1
ADDQ hlp, acc0
ADCQ $0, acc1
SUBQ mul0, acc0
SBBQ mul1, acc1
ADDQ hlp, acc2
ADCQ $0, acc3
SUBQ mul0, acc2
SBBQ mul1, acc3
SUBQ hlp, acc2
SBBQ $0, acc3
MOVQ $0, BP
// Add bits [511:256] of the result
ADCQ acc0, t0