From 75d0ce10577eb36683b6a33ad5fea26b961f364f Mon Sep 17 00:00:00 2001
From: Sun Yimin <emmansun@users.noreply.github.com>
Date: Thu, 22 Feb 2024 10:26:37 +0800
Subject: [PATCH] Updated SM2 MFMM (2) (markdown)

---
 SM2-MFMM-(2).md | 24 ++++++++++++++++++++++++
 1 file changed, 24 insertions(+)

diff --git a/SM2-MFMM-(2).md b/SM2-MFMM-(2).md
index 328bc32..b6af0c9 100644
--- a/SM2-MFMM-(2).md
+++ b/SM2-MFMM-(2).md
@@ -55,6 +55,30 @@ $t_3=t_3 + t_0 \ast p_3$
 乘法: 3  
 加法：10  
 
+使用MULXQ/ADCXQ/ADOXQ:  
+```asm
+  MOVQ t0, DX
+  XORQ BX, BX
+  XORQ SI, SI
+
+  MULXQ p1, AX, DI
+  ADCXQ BX, AX
+  ADOXQ AX, t1
+
+  MULXQ p2, AX, BX
+  ADCXQ DI, AX 
+  ADOXQ AX, t2
+
+  MULXQ p3, AX, t0
+  ADCXQ BX, AX 
+  ADOXQ AX, t3
+
+  ADCXQ SI, t0 
+  ADOXQ SI, t0
+```
+乘法: 3  
+加法：8  
+
 ### 方案二：(移位、加法、减法)
 $T_2=T_1 \ast P=t_0 \ast P= t_0 \ast (2^{256}-(2^{32} \ast 2^{192} + 0 \ast 2^{128} + (2^{32} - 1) \ast 2^{64} + 1))$  
 $T_2=t_0 \ast 2^{256} - t_0 \ast 2^{32} \ast 2^{192} - t_0 \ast (2^{32} - 1) \ast 2^{64} - t_0$