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internal/sm2ec: reduce memory access

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Sun Yimin 2023-11-08 10:26:19 +08:00 committed by GitHub
parent 720630b65d
commit 230fea3435
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1 changed files with 5 additions and 2 deletions
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7
internal/sm2ec/p256_asm_arm64.s
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@ -1208,14 +1208,17 @@ TEXT ·p256PointAddAffineAsm(SB),0,$264-48
CALL sm2P256Subinternal<>(SB) // h = u2 - u1
STx(h)
LDy(z1in)
MOVD x0, y0
MOVD x1, y1
MOVD x2, y2
MOVD x3, y3
LDx(z1in)
CALL sm2P256MulInternal<>(SB) // z3 = h * z1
VMOV y0, V4.D[0] // save z3
VMOV y1, V4.D[1]
VMOV y2, V5.D[0]
VMOV y3, V5.D[1]
LDx(z1in)
LDy(z1sqr)
CALL sm2P256MulInternal<>(SB) // z1 ^ 3