forked from cerc-io/plugeth
98 lines
1.6 KiB
ArmAsm
98 lines
1.6 KiB
ArmAsm
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// +build amd64,!appengine,!gccgo
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#include "gfp.h"
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#include "mul.h"
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#include "mul_bmi2.h"
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TEXT ·gfpNeg(SB),0,$0-16
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MOVQ ·p2+0(SB), R8
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MOVQ ·p2+8(SB), R9
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MOVQ ·p2+16(SB), R10
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MOVQ ·p2+24(SB), R11
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MOVQ a+8(FP), DI
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SUBQ 0(DI), R8
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SBBQ 8(DI), R9
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SBBQ 16(DI), R10
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SBBQ 24(DI), R11
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MOVQ $0, AX
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gfpCarry(R8,R9,R10,R11,AX, R12,R13,R14,R15,BX)
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MOVQ c+0(FP), DI
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storeBlock(R8,R9,R10,R11, 0(DI))
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RET
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TEXT ·gfpAdd(SB),0,$0-24
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MOVQ a+8(FP), DI
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MOVQ b+16(FP), SI
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loadBlock(0(DI), R8,R9,R10,R11)
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MOVQ $0, R12
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ADDQ 0(SI), R8
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ADCQ 8(SI), R9
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ADCQ 16(SI), R10
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ADCQ 24(SI), R11
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ADCQ $0, R12
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gfpCarry(R8,R9,R10,R11,R12, R13,R14,R15,AX,BX)
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MOVQ c+0(FP), DI
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storeBlock(R8,R9,R10,R11, 0(DI))
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RET
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TEXT ·gfpSub(SB),0,$0-24
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MOVQ a+8(FP), DI
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MOVQ b+16(FP), SI
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loadBlock(0(DI), R8,R9,R10,R11)
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MOVQ ·p2+0(SB), R12
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MOVQ ·p2+8(SB), R13
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MOVQ ·p2+16(SB), R14
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MOVQ ·p2+24(SB), R15
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MOVQ $0, AX
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SUBQ 0(SI), R8
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SBBQ 8(SI), R9
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SBBQ 16(SI), R10
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SBBQ 24(SI), R11
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CMOVQCC AX, R12
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CMOVQCC AX, R13
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CMOVQCC AX, R14
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CMOVQCC AX, R15
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ADDQ R12, R8
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ADCQ R13, R9
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ADCQ R14, R10
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ADCQ R15, R11
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MOVQ c+0(FP), DI
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storeBlock(R8,R9,R10,R11, 0(DI))
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RET
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TEXT ·gfpMul(SB),0,$160-24
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MOVQ a+8(FP), DI
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MOVQ b+16(FP), SI
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// Jump to a slightly different implementation if MULX isn't supported.
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CMPB runtime·support_bmi2(SB), $0
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JE nobmi2Mul
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mulBMI2(0(DI),8(DI),16(DI),24(DI), 0(SI))
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storeBlock( R8, R9,R10,R11, 0(SP))
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storeBlock(R12,R13,R14,R15, 32(SP))
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gfpReduceBMI2()
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JMP end
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nobmi2Mul:
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mul(0(DI),8(DI),16(DI),24(DI), 0(SI), 0(SP))
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gfpReduce(0(SP))
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end:
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MOVQ c+0(FP), DI
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storeBlock(R12,R13,R14,R15, 0(DI))
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RET
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