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internal/sm2ec: loong64 p256MulBy2

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Sun Yimin 2025-10-14 14:45:35 +08:00 committed by GitHub
parent 9ea23b037e
commit 09244c1338
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1 changed files with 18 additions and 18 deletions
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36
internal/sm2ec/p256_asm_loong64.s
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@ -1363,24 +1363,6 @@ TEXT sm2P256Subinternal<>(SB),NOSPLIT,$0
RET
/* ---------------------------------------*/
// func p256MulBy2(res, in *p256Element)
TEXT ·p256MulBy2(SB),NOSPLIT,$0
MOVV res+0(FP), res_ptr
MOVV in+8(FP), x_ptr
MOVV (8*0)(x_ptr), y0
MOVV (8*1)(x_ptr), y1
MOVV (8*2)(x_ptr), y2
MOVV (8*3)(x_ptr), y3
MOVV p256one<>+0x08(SB), const0
ADDV $1, const0, const1
p256MulBy2Inline
MOVV x0, (8*0)(res_ptr)
MOVV x1, (8*1)(res_ptr)
MOVV x2, (8*2)(res_ptr)
MOVV x3, (8*3)(res_ptr)
RET
/* ---------------------------------------*/
// (x3, x2, x1, x0) = 2(y3, y2, y1, y0)
#define p256MulBy2Inline \
@ -1419,3 +1401,21 @@ TEXT ·p256MulBy2(SB),NOSPLIT,$0
MASKNEZ t0, x3, x3; \
MASKEQZ t0, acc7, acc7; \
OR acc7, x3
/* ---------------------------------------*/
// func p256MulBy2(res, in *p256Element)
TEXT ·p256MulBy2(SB),NOSPLIT,$0
MOVV res+0(FP), res_ptr
MOVV in+8(FP), x_ptr
MOVV (8*0)(x_ptr), y0
MOVV (8*1)(x_ptr), y1
MOVV (8*2)(x_ptr), y2
MOVV (8*3)(x_ptr), y3
MOVV p256one<>+0x08(SB), const0
ADDV $1, const0, const1
p256MulBy2Inline
MOVV x0, (8*0)(res_ptr)
MOVV x1, (8*1)(res_ptr)
MOVV x2, (8*2)(res_ptr)
MOVV x3, (8*3)(res_ptr)
RET