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Rollback reduction process with multiple and addition

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Emman 2021-12-17 16:50:47 +08:00
parent 996ab5047f
commit 49e0071a8a
1 changed files with 398 additions and 346 deletions
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744
sm2/p256_asm_amd64.s
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@ -246,82 +246,94 @@ sqrLoop:
ADCQ DX, t1
MOVQ t1, x_ptr
// First reduction step
MOVQ acc0, t1
MOVQ t1, AX
MOVQ t1, DX
SHLQ $32, AX
SHRQ $32, DX
ADDQ t1, acc1
ADCQ $0, acc2
SUBQ AX, acc1
SBBQ DX, acc2
ADDQ t1, acc3
ADCQ $0, acc0
SUBQ AX, acc3
SBBQ DX, acc0
SUBQ t1, acc3
SBBQ $0, acc0
// Second reduction step
MOVQ acc1, t1
MOVQ t1, AX
MOVQ t1, DX
SHLQ $32, AX
SHRQ $32, DX
MOVQ p256p<>+0x08(SB), AX
MULQ acc0
ADDQ acc0, acc1
ADCQ $0, DX
ADDQ AX, acc1
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x010(SB), AX
MULQ acc0
ADDQ t1, acc2
ADCQ $0, acc3
SUBQ AX, acc2
SBBQ DX, acc3
ADDQ t1, acc0
ADCQ $0, acc1
SUBQ AX, acc0
SBBQ DX, acc1
SUBQ t1, acc0
SBBQ $0, acc1
// Third reduction step
MOVQ acc2, t1
MOVQ t1, AX
MOVQ t1, DX
SHLQ $32, AX
SHRQ $32, DX
ADCQ $0, DX
ADDQ AX, acc2
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x018(SB), AX
MULQ acc0
ADDQ t1, acc3
ADCQ $0, acc0
SUBQ AX, acc3
SBBQ DX, acc0
ADCQ $0, DX
ADDQ AX, acc3
ADCQ $0, DX
MOVQ DX, acc0
// Second reduction step
MOVQ p256p<>+0x08(SB), AX
MULQ acc1
ADDQ acc1, acc2
ADCQ $0, DX
ADDQ AX, acc2
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x010(SB), AX
MULQ acc1
ADDQ t1, acc3
ADCQ $0, DX
ADDQ AX, acc3
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x018(SB), AX
MULQ acc1
ADDQ t1, acc0
ADCQ $0, DX
ADDQ AX, acc0
ADCQ $0, DX
MOVQ DX, acc1
// Third reduction step
MOVQ p256p<>+0x08(SB), AX
MULQ acc2
ADDQ acc2, acc3
ADCQ $0, DX
ADDQ AX, acc3
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x010(SB), AX
MULQ acc2
ADDQ t1, acc0
ADCQ $0, DX
ADDQ AX, acc0
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x018(SB), AX
MULQ acc2
ADDQ t1, acc1
ADCQ $0, acc2
SUBQ AX, acc1
SBBQ DX, acc2
SUBQ t1, acc1
SBBQ $0, acc2
ADCQ $0, DX
ADDQ AX, acc1
ADCQ $0, DX
MOVQ DX, acc2
// Last reduction step
XORQ t0, t0
MOVQ acc3, t1
MOVQ t1, AX
MOVQ t1, DX
SHLQ $32, AX
SHRQ $32, DX
ADDQ t1, acc0
ADCQ $0, acc1
SUBQ AX, acc0
SBBQ DX, acc1
MOVQ p256p<>+0x08(SB), AX
MULQ acc3
ADDQ acc3, acc0
ADCQ $0, DX
ADDQ AX, acc0
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x010(SB), AX
MULQ acc3
ADDQ t1, acc1
ADCQ $0, DX
ADDQ AX, acc1
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x018(SB), AX
MULQ acc3
ADDQ t1, acc2
ADCQ $0, acc3
SUBQ AX, acc2
SBBQ DX, acc3
SUBQ t1, acc2
SBBQ $0, acc3
ADCQ $0, DX
ADDQ AX, acc2
ADCQ $0, DX
MOVQ DX, acc3
// Add bits [511:256] of the sqr result
ADCQ acc4, acc0
@ -388,24 +400,26 @@ TEXT ·p256Mul(SB),NOSPLIT,$0
MOVQ DX, acc4
XORQ acc5, acc5
// First reduction step
MOVQ acc0, AX
MOVQ acc0, DX
SHLQ $32, AX
SHRQ $32, DX
MOVQ p256p<>+0x08(SB), AX
MULQ acc0
ADDQ acc0, acc1
ADCQ $0, acc2
SUBQ AX, acc1
SBBQ DX, acc2
MOVQ acc0, t1
ADDQ acc0, acc3
ADCQ $0, t1
SUBQ AX, acc3
SBBQ DX, t1
SUBQ acc0, acc3
SBBQ $0, t1
ADDQ t1, acc4
ADCQ $0, DX
ADDQ AX, acc1
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x010(SB), AX
MULQ acc0
ADDQ t1, acc2
ADCQ $0, DX
ADDQ AX, acc2
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x018(SB), AX
MULQ acc0
ADDQ t1, acc3
ADCQ $0, DX
ADDQ AX, acc3
ADCQ DX, acc4
ADCQ $0, acc5
XORQ acc0, acc0
@ -442,24 +456,26 @@ TEXT ·p256Mul(SB),NOSPLIT,$0
ADCQ DX, acc5
ADCQ $0, acc0
// Second reduction step
MOVQ acc1, AX
MOVQ acc1, DX
SHLQ $32, AX
SHRQ $32, DX
MOVQ p256p<>+0x08(SB), AX
MULQ acc1
ADDQ acc1, acc2
ADCQ $0, acc3
SUBQ AX, acc2
SBBQ DX, acc3
MOVQ acc1, t1
ADDQ acc1, acc4
ADCQ $0, t1
SUBQ AX, acc4
SBBQ DX, t1
SUBQ acc1, acc4
SBBQ $0, t1
ADDQ t1, acc5
ADCQ $0, DX
ADDQ AX, acc2
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x010(SB), AX
MULQ acc1
ADDQ t1, acc3
ADCQ $0, DX
ADDQ AX, acc3
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x018(SB), AX
MULQ acc1
ADDQ t1, acc4
ADCQ $0, DX
ADDQ AX, acc4
ADCQ DX, acc5
ADCQ $0, acc0
XORQ acc1, acc1
@ -496,24 +512,26 @@ TEXT ·p256Mul(SB),NOSPLIT,$0
ADCQ DX, acc0
ADCQ $0, acc1
// Third reduction step
MOVQ acc2, AX
MOVQ acc2, DX
SHLQ $32, AX
SHRQ $32, DX
MOVQ p256p<>+0x08(SB), AX
MULQ acc2
ADDQ acc2, acc3
ADCQ $0, acc4
SUBQ AX, acc3
SBBQ DX, acc4
MOVQ acc2, t1
ADDQ acc2, acc5
ADCQ $0, t1
SUBQ AX, acc5
SBBQ DX, t1
SUBQ acc2, acc5
SBBQ $0, t1
ADDQ t1, acc0
ADCQ $0, DX
ADDQ AX, acc3
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x010(SB), AX
MULQ acc2
ADDQ t1, acc4
ADCQ $0, DX
ADDQ AX, acc4
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x018(SB), AX
MULQ acc2
ADDQ t1, acc5
ADCQ $0, DX
ADDQ AX, acc5
ADCQ DX, acc0
ADCQ $0, acc1
XORQ acc2, acc2
// x * y[3]
@ -549,24 +567,26 @@ TEXT ·p256Mul(SB),NOSPLIT,$0
ADCQ DX, acc1
ADCQ $0, acc2
// Last reduction step
MOVQ acc3, AX
MOVQ acc3, DX
SHLQ $32, AX
SHRQ $32, DX
MOVQ p256p<>+0x08(SB), AX
MULQ acc3
ADDQ acc3, acc4
ADCQ $0, acc5
SUBQ AX, acc4
SBBQ DX, acc5
MOVQ acc3, t1
ADDQ acc3, acc0
ADCQ $0, t1
SUBQ AX, acc0
SBBQ DX, t1
SUBQ acc3, acc0
SBBQ $0, t1
ADDQ t1, acc1
ADCQ $0, DX
ADDQ AX, acc4
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x010(SB), AX
MULQ acc3
ADDQ t1, acc5
ADCQ $0, DX
ADDQ AX, acc5
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x018(SB), AX
MULQ acc3
ADDQ t1, acc0
ADCQ $0, DX
ADDQ AX, acc0
ADCQ DX, acc1
ADCQ $0, acc2
// Copy result [255:0]
MOVQ acc4, x_ptr
@ -605,85 +625,93 @@ TEXT ·p256FromMont(SB),NOSPLIT,$0
// Only reduce, no multiplications are needed
// First stage
MOVQ acc0, AX
MOVQ acc0, DX
SHLQ $32, AX
SHRQ $32, DX
MOVQ p256p<>+0x08(SB), AX
MULQ acc0
ADDQ acc0, acc1
ADCQ $0, acc2
SUBQ AX, acc1
SBBQ DX, acc2
MOVQ acc0, t1
ADDQ acc0, acc3
ADCQ $0, t1
SUBQ AX, acc3
SBBQ DX, t1
SUBQ acc0, acc3
SBBQ $0, t1
ADDQ t1, acc4
ADCQ $0, DX
ADDQ AX, acc1
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x010(SB), AX
MULQ acc0
ADDQ t1, acc2
ADCQ $0, DX
ADDQ AX, acc2
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x018(SB), AX
MULQ acc0
ADDQ t1, acc3
ADCQ $0, DX
ADDQ AX, acc3
ADCQ DX, acc4
XORQ acc5, acc5
// Second stage
MOVQ acc1, AX
MOVQ acc1, DX
SHLQ $32, AX
SHRQ $32, DX
MOVQ p256p<>+0x08(SB), AX
MULQ acc1
ADDQ acc1, acc2
ADCQ $0, acc3
SUBQ AX, acc2
SBBQ DX, acc3
MOVQ acc1, t1
ADDQ acc1, acc4
ADCQ $0, t1
SUBQ AX, acc4
SBBQ DX, t1
SUBQ acc1, acc4
SBBQ $0, t1
ADDQ t1, acc5
ADCQ $0, DX
ADDQ AX, acc2
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x010(SB), AX
MULQ acc1
ADDQ t1, acc3
ADCQ $0, DX
ADDQ AX, acc3
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x018(SB), AX
MULQ acc1
ADDQ t1, acc4
ADCQ $0, DX
ADDQ AX, acc4
ADCQ DX, acc5
XORQ acc0, acc0
// Third stage
MOVQ acc2, AX
MOVQ acc2, DX
SHLQ $32, AX
SHRQ $32, DX
MOVQ p256p<>+0x08(SB), AX
MULQ acc2
ADDQ acc2, acc3
ADCQ $0, acc4
SUBQ AX, acc3
SBBQ DX, acc4
MOVQ acc2, t1
ADDQ acc2, acc5
ADCQ $0, t1
SUBQ AX, acc5
SBBQ DX, t1
SUBQ acc2, acc5
SBBQ $0, t1
ADDQ t1, acc0
ADCQ $0, DX
ADDQ AX, acc3
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x010(SB), AX
MULQ acc2
ADDQ t1, acc4
ADCQ $0, DX
ADDQ AX, acc4
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x018(SB), AX
MULQ acc2
ADDQ t1, acc5
ADCQ $0, DX
ADDQ AX, acc5
ADCQ DX, acc0
XORQ acc1, acc1
// Last stage
MOVQ acc3, AX
MOVQ acc3, DX
SHLQ $32, AX
SHRQ $32, DX
MOVQ p256p<>+0x08(SB), AX
MULQ acc3
ADDQ acc3, acc4
ADCQ $0, acc5
SUBQ AX, acc4
SBBQ DX, acc5
MOVQ acc3, t1
ADDQ acc3, acc0
ADCQ $0, t1
SUBQ AX, acc0
SBBQ DX, t1
SUBQ acc3, acc0
SBBQ $0, t1
ADDQ t1, acc1
ADCQ $0, DX
ADDQ AX, acc4
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x010(SB), AX
MULQ acc3
ADDQ t1, acc5
ADCQ $0, DX
ADDQ AX, acc5
ADCQ $0, DX
MOVQ DX, t1
MOVQ p256p<>+0x018(SB), AX
MULQ acc3
ADDQ t1, acc0
ADCQ $0, DX
ADDQ AX, acc0
ADCQ DX, acc1
MOVQ acc4, x_ptr
MOVQ acc5, acc3
@ -1563,81 +1591,93 @@ TEXT sm2P256MulInternal(SB),NOSPLIT,$0
ADCQ $0, mul1
MOVQ mul1, acc7
// First reduction step
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
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
ADDQ hlp, acc3
ADCQ $0, acc0
SUBQ mul0, acc3
SBBQ mul1, acc0
SUBQ hlp, acc3
SBBQ $0, acc0
ADCQ $0, mul1
ADDQ mul0, acc3
ADCQ $0, mul1
MOVQ mul1, acc0
// Second reduction step
MOVQ acc1, hlp
MOVQ hlp, mul0
MOVQ hlp, mul1
SHLQ $32, mul0
SHRQ $32, mul1
ADDQ hlp, acc2
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
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, 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
ADCQ $0, mul1
ADDQ mul0, acc3
ADCQ $0, mul1
MOVQ mul1, hlp
MOVQ p256p<>+0x018(SB), mul0
MULQ acc1
ADDQ hlp, acc0
ADCQ $0, acc1
SUBQ mul0, acc0
SBBQ mul1, acc1
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
ADDQ hlp, acc2
ADCQ $0, acc3
SUBQ mul0, acc2
SBBQ mul1, acc3
SUBQ hlp, acc2
SBBQ $0, acc3
ADCQ $0, mul1
ADDQ mul0, acc2
ADCQ $0, mul1
MOVQ mul1, acc3
MOVQ $0, BP
// Add bits [511:256] of the result
ADCQ acc0, acc4
@ -1737,81 +1777,93 @@ TEXT sm2P256SqrInternal(SB),NOSPLIT,$0
ADCQ mul0, t2
ADCQ DX, t3
// First reduction step
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
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
ADDQ hlp, acc3
ADCQ $0, acc0
SUBQ mul0, acc3
SBBQ mul1, acc0
SUBQ hlp, acc3
SBBQ $0, acc0
ADCQ $0, mul1
ADDQ mul0, acc3
ADCQ $0, mul1
MOVQ mul1, acc0
// Second reduction step
MOVQ acc1, hlp
MOVQ hlp, mul0
MOVQ hlp, mul1
SHLQ $32, mul0
SHRQ $32, mul1
ADDQ hlp, acc2
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
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, 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
ADCQ $0, mul1
ADDQ mul0, acc3
ADCQ $0, mul1
MOVQ mul1, hlp
MOVQ p256p<>+0x018(SB), mul0
MULQ acc1
ADDQ hlp, acc0
ADCQ $0, acc1
SUBQ mul0, acc0
SBBQ mul1, acc1
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
ADDQ hlp, acc2
ADCQ $0, acc3
SUBQ mul0, acc2
SBBQ mul1, acc3
SUBQ hlp, acc2
SBBQ $0, acc3
ADCQ $0, mul1
ADDQ mul0, acc2
ADCQ $0, mul1
MOVQ mul1, acc3
MOVQ $0, BP
// Add bits [511:256] of the result
ADCQ acc0, t0