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plugin: sm2 sm9 use BP carefully

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Sun Yimin 2023-09-11 08:47:02 +08:00 committed by GitHub
parent 719bca92db
commit 429c2db8aa
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GPG Key ID: 4AEE18F83AFDEB23
2 changed files with 12 additions and 24 deletions
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24
internal/sm2ec/p256_plugin_amd64.s
View File

@ -13,16 +13,15 @@
/* ---------------------------------------*/
// func p256Sqr(res, in *p256Element, n int)
TEXT ·p256Sqr(SB),NOSPLIT,$8-24
TEXT ·p256Sqr(SB),NOSPLIT,$0
MOVQ res+0(FP), res_ptr
MOVQ in+8(FP), x_ptr
MOVQ n+16(FP), BX
MOVQ n+16(FP), BP
CMPB ·supportBMI2+0(SB), $0x01
JEQ sqrBMI2
sqrLoop:
MOVQ BX, (SP)
// y[1:] * y[0]
MOVQ (8*0)(x_ptr), t0
@ -106,13 +105,11 @@ sqrLoop:
p256SqrMontReduce()
p256PrimReduce(acc0, acc1, acc2, acc3, t0, acc4, acc5, y_ptr, BX, res_ptr)
MOVQ res_ptr, x_ptr
MOVQ (SP), BX
DECQ BX
DECQ BP
JNE sqrLoop
RET
sqrBMI2:
MOVQ BX, (SP)
// y[1:] * y[0]
MOVQ (8*0)(x_ptr), DX
@ -177,23 +174,21 @@ sqrBMI2:
p256SqrMontReduce()
p256PrimReduce(acc0, acc1, acc2, acc3, t0, acc4, acc5, y_ptr, BX, res_ptr)
MOVQ res_ptr, x_ptr
MOVQ (SP), BX
DECQ BX
DECQ BP
JNE sqrBMI2
RET
/* ---------------------------------------*/
// func p256OrdSqr(res, in *p256OrdElement, n int)
TEXT ·p256OrdSqr(SB),NOSPLIT,$8-24
TEXT ·p256OrdSqr(SB),NOSPLIT,$0
MOVQ res+0(FP), res_ptr
MOVQ in+8(FP), x_ptr
MOVQ n+16(FP), BX
MOVQ n+16(FP), BP
CMPB ·supportBMI2+0(SB), $0x01
JEQ ordSqrLoopBMI2
ordSqrLoop:
MOVQ BX, (SP)
// y[1:] * y[0]
MOVQ (8*0)(x_ptr), t0
@ -406,14 +401,12 @@ ordSqrLoop:
p256OrdReduceInline(acc0, acc1, acc2, acc3, t0, acc4, acc5, y_ptr, BX, res_ptr)
MOVQ res_ptr, x_ptr
MOVQ (SP), BX
DECQ BX
DECQ BP
JNE ordSqrLoop
RET
ordSqrLoopBMI2:
MOVQ BX, (SP)
// y[1:] * y[0]
MOVQ (8*0)(x_ptr), DX
MULXQ (8*1)(x_ptr), acc1, acc2
@ -587,8 +580,7 @@ ordSqrLoopBMI2:
p256OrdReduceInline(acc0, acc1, acc2, acc3, t0, acc4, acc5, y_ptr, BX, res_ptr)
MOVQ res_ptr, x_ptr
MOVQ (SP), BX
DECQ BX
DECQ BP
JNE ordSqrLoopBMI2
RET

12
sm9/bn256/gfp_plugin_amd64.s
View File

@ -5,16 +5,15 @@
#include "gfp_macros_amd64.s"
// func gfpSqr(res, in *gfP, n int)
TEXT ·gfpSqr(SB),NOSPLIT,$24-8
TEXT ·gfpSqr(SB),NOSPLIT,$0
MOVQ res+0(FP), res_ptr
MOVQ in+8(FP), x_ptr
MOVQ n+16(FP), BX
MOVQ n+16(FP), BP
CMPB ·supportADX(SB), $0
JE gfpSqrLoop
gfpSqrLoopAdx:
MOVQ BX, (SP)
XORQ acc0, acc0
XORQ y_ptr, y_ptr
// y[1:] * y[0]
@ -174,14 +173,12 @@ gfpSqrLoopAdx:
storeBlock(acc0,acc1,acc2,acc3, 0(res_ptr))
MOVQ res_ptr, x_ptr
MOVQ (SP), BX
DECQ BX
DECQ BP
JNE gfpSqrLoopAdx
RET
gfpSqrLoop:
MOVQ BX, (SP)
// y[1:] * y[0]
MOVQ (8*0)(x_ptr), t0
@ -416,8 +413,7 @@ gfpSqrLoop:
gfpCarry(acc0,acc1,acc2,acc3, acc4,acc5,y_ptr,BX,t0)
storeBlock(acc0,acc1,acc2,acc3, 0(res_ptr))
MOVQ res_ptr, x_ptr
MOVQ (SP), BX
DECQ BX
DECQ BP
JNE gfpSqrLoop
RET