From 1f6223975563c2eff6ad5bbed42b0bc8cf9a80cf Mon Sep 17 00:00:00 2001
From: Sun Yimin <emmansun@users.noreply.github.com>
Date: Thu, 23 Dec 2021 21:25:30 +0800
Subject: [PATCH] Updated MFMM (markdown)

---
 MFMM.md | 19 ++++++++-----------
 1 file changed, 8 insertions(+), 11 deletions(-)

diff --git a/MFMM.md b/MFMM.md
index 73f7caf..9c7f38d 100644
--- a/MFMM.md
+++ b/MFMM.md
@@ -153,33 +153,30 @@ acc0, acc1, acc2, acc3, acc4, acc5是64位寄存器
 考虑以下算法(主要就是一轮加法，一轮减法)：
 
        acc4,         acc3,         acc2,        acc1
-     + acc0,         0,            0,           (acc0 - L(acc0*2^32))
-     - H(acc0*2^32)  L(acc0*2^32)  H(acc0*2^32)
+     + acc0,         0,            0,           acc0
+     - H(acc0*2^32)  L(acc0*2^32)  H(acc0*2^32) L(acc0*2^32)
 
     =》继续优化
        acc4,                          acc3,         acc2,        acc1
-     + (acc0 - H(acc0*2^32)),         0,            0,           (acc0 - L(acc0*2^32))
-     -                                L(acc0*2^32)  H(acc0*2^32)
+     + (acc0 - H(acc0*2^32)),         0,            0,           acc0
+     -                                L(acc0*2^32)  H(acc0*2^32) L(acc0*2^32)
 
-acc0 - H(acc0 * 2^32) >= 0, acc0 - L(acc0 * 2^32) >= 0 显然。
+acc0 - H(acc0 * 2^32) >= 0显然。
 
  	MOVQ acc0, AX
 	MOVQ acc0, DX
 	SHLQ $32, AX
 	SHRQ $32, DX
-	MOVQ acc0, t0
-	SUBQ AX, t0
-	SUBQ DX, acc0
 	
-	ADDQ t0, acc1
+	ADDQ acc0, acc1
 	ADCQ $0, acc2
 	ADCQ $0, acc3
 	ADCQ acc0, acc4
 	ADCQ $0, acc5
-	
+	SUBQ AX, acc1
 	SUBQ DX, acc2
 	SBBQ AX, acc3
-	SBBQ $0, acc4
+	SBBQ DX, acc4
 	SBBQ $0, acc5
 
 ### 第三步，计算 X * Y1，并且和tmp相加