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MAGIC - optimize p256Mul p256FromMont

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emmansun 2021-02-12 14:54:21 +08:00
parent aa6b436714
commit 371ea2f4b3
1 changed files with 137 additions and 153 deletions
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288
sm2/p256_asm_amd64.s
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@ -388,26 +388,24 @@ TEXT ·p256Mul(SB),NOSPLIT,$0
MOVQ DX, acc4
XORQ acc5, acc5
// First reduction step
MOVQ p256p<>+0x08(SB), AX
MULQ acc0
MOVQ acc0, AX
MOVQ acc0, DX
SHLQ $32, AX
SHRQ $32, DX
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, 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, 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, acc5
XORQ acc0, acc0
@ -444,26 +442,24 @@ TEXT ·p256Mul(SB),NOSPLIT,$0
ADCQ DX, acc5
ADCQ $0, acc0
// Second reduction step
MOVQ p256p<>+0x08(SB), AX
MULQ acc1
MOVQ acc1, AX
MOVQ acc1, DX
SHLQ $32, AX
SHRQ $32, DX
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, acc4
ADCQ $0, DX
ADDQ AX, acc4
ADCQ DX, acc5
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, acc0
XORQ acc1, acc1
@ -500,26 +496,24 @@ TEXT ·p256Mul(SB),NOSPLIT,$0
ADCQ DX, acc0
ADCQ $0, acc1
// Third reduction step
MOVQ p256p<>+0x08(SB), AX
MULQ acc2
MOVQ acc2, AX
MOVQ acc2, DX
SHLQ $32, AX
SHRQ $32, DX
ADDQ acc2, acc3
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, 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, acc1
XORQ acc2, acc2
// x * y[3]
@ -555,26 +549,24 @@ TEXT ·p256Mul(SB),NOSPLIT,$0
ADCQ DX, acc1
ADCQ $0, acc2
// Last reduction step
MOVQ p256p<>+0x08(SB), AX
MULQ acc3
MOVQ acc3, AX
MOVQ acc3, DX
SHLQ $32, AX
SHRQ $32, DX
ADDQ acc3, acc4
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, 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, acc2
// Copy result [255:0]
MOVQ acc4, x_ptr
@ -613,93 +605,85 @@ TEXT ·p256FromMont(SB),NOSPLIT,$0
// Only reduce, no multiplications are needed
// First stage
MOVQ p256p<>+0x08(SB), AX
MULQ acc0
MOVQ acc0, AX
MOVQ acc0, DX
SHLQ $32, AX
SHRQ $32, DX
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, 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, 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
XORQ acc5, acc5
// Second stage
MOVQ p256p<>+0x08(SB), AX
MULQ acc1
MOVQ acc1, AX
MOVQ acc1, DX
SHLQ $32, AX
SHRQ $32, DX
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, acc4
ADCQ $0, DX
ADDQ AX, acc4
ADCQ DX, acc5
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
XORQ acc0, acc0
// Third stage
MOVQ p256p<>+0x08(SB), AX
MULQ acc2
MOVQ acc2, AX
MOVQ acc2, DX
SHLQ $32, AX
SHRQ $32, DX
ADDQ acc2, acc3
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, 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
XORQ acc1, acc1
// Last stage
MOVQ p256p<>+0x08(SB), AX
MULQ acc3
MOVQ acc3, AX
MOVQ acc3, DX
SHLQ $32, AX
SHRQ $32, DX
ADDQ acc3, acc4
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, 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
MOVQ acc4, x_ptr
MOVQ acc5, acc3