diff options
Diffstat (limited to 'src/crypto/internal/bigmod/nat_amd64.s')
| -rw-r--r-- | src/crypto/internal/bigmod/nat_amd64.s | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/src/crypto/internal/bigmod/nat_amd64.s b/src/crypto/internal/bigmod/nat_amd64.s new file mode 100644 index 0000000..12b7629 --- /dev/null +++ b/src/crypto/internal/bigmod/nat_amd64.s @@ -0,0 +1,68 @@ +// Code generated by command: go run nat_amd64_asm.go -out ../nat_amd64.s -stubs ../nat_amd64.go -pkg bigmod. DO NOT EDIT. + +//go:build amd64 && gc && !purego + +// func montgomeryLoop(d []uint, a []uint, b []uint, m []uint, m0inv uint) uint +TEXT ·montgomeryLoop(SB), $8-112 + MOVQ d_len+8(FP), CX + MOVQ d_base+0(FP), BX + MOVQ b_base+48(FP), SI + MOVQ m_base+72(FP), DI + MOVQ m0inv+96(FP), R8 + XORQ R9, R9 + XORQ R10, R10 + +outerLoop: + MOVQ a_base+24(FP), R11 + MOVQ (R11)(R10*8), R11 + MOVQ (SI), AX + MULQ R11 + MOVQ AX, R13 + MOVQ DX, R12 + ADDQ (BX), R13 + ADCQ $0x00, R12 + MOVQ R8, R14 + IMULQ R13, R14 + BTRQ $0x3f, R14 + MOVQ (DI), AX + MULQ R14 + ADDQ AX, R13 + ADCQ DX, R12 + SHRQ $0x3f, R12, R13 + XORQ R12, R12 + INCQ R12 + JMP innerLoopCondition + +innerLoop: + MOVQ (SI)(R12*8), AX + MULQ R11 + MOVQ AX, BP + MOVQ DX, R15 + MOVQ (DI)(R12*8), AX + MULQ R14 + ADDQ AX, BP + ADCQ DX, R15 + ADDQ (BX)(R12*8), BP + ADCQ $0x00, R15 + ADDQ R13, BP + ADCQ $0x00, R15 + MOVQ BP, AX + BTRQ $0x3f, AX + MOVQ AX, -8(BX)(R12*8) + SHRQ $0x3f, R15, BP + MOVQ BP, R13 + INCQ R12 + +innerLoopCondition: + CMPQ CX, R12 + JGT innerLoop + ADDQ R13, R9 + MOVQ R9, AX + BTRQ $0x3f, AX + MOVQ AX, -8(BX)(CX*8) + SHRQ $0x3f, R9 + INCQ R10 + CMPQ CX, R10 + JGT outerLoop + MOVQ R9, ret+104(FP) + RET |