diff --git a/MFMM.md b/MFMM.md
index 76e7d03..5c37ce4 100644
--- a/MFMM.md
+++ b/MFMM.md
@@ -42,6 +42,7 @@ acc0, acc1, acc2, acc3, acc4, acc5是64位寄存器
         =acc4 * 2^192 + (acc0 * p3 + acc3) * 2^128 + acc2 * 2^64 + acc0 + acc1 + acc0* (2^32 - 1)
         =acc4 * 2^192 + (acc0 * p3 + acc3) * 2^128 + acc2 * 2^64 + acc1 + acc0* 2^32 
         =acc4 * 2^192 + (acc0 * p3 + acc3) * 2^128 + (acc2 + H(acc0* 2^32))* 2^64 + acc1 + L(acc0* 2^32) 
+    
 
     amd64 汇编表示为：
 	MOVQ acc0, AX
@@ -55,6 +56,7 @@ acc0, acc1, acc2, acc3, acc4, acc5是64位寄存器
 	ADCQ DX, acc4          // (carry4, acc4) = carry3 + acc4 + H(acc0 * p3)
 	ADCQ $0, acc5          // acc5 = carry4
 	XORQ acc0, acc0        // acc0 = 0
+    结果用五个64位寄存器表示：(acc5, acc4, acc3, acc2, acc1)
 
     arm64 汇编表示为：
 	ADDS	acc0<<32, acc1, acc1  // (carry1, acc1) = acc1 + L(acc0 * 2^32)
@@ -64,6 +66,7 @@ acc0, acc1, acc2, acc3, acc4, acc5是64位寄存器
 	ADCS	t0, acc2              // (carry2, acc2) = carry1 + acc2 + H(acc0 * 2^32)
 	ADCS	t1, acc3              // (carry3, acc3) = carry2 + acc3 + L(acc0 * p3)
 	ADC	$0, acc0              // acc0 = carry3 + H(acc0 * p3), arm64的实现，((acc0, acc4), acc3, acc2, acc1)表示第一次reduction的结果, 不像amd64那样使用（acc5, acc4, acc3, acc2, acc1）。
+    结果也用五个64位寄存器表示：(acc4, acc3, acc2, acc1) ，(acc0, 0, 0, 0)
 
     SM2曲线
     p = 0x fffffffeffffffff ffffffffffffffff ffffffff00000000 ffffffffffffffff