From e7db987de949b94c477ceb6da2459e318b620681 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E6=BA=90=E6=96=87=E9=9B=A8?=
 <41315874+fumiama@users.noreply.github.com>
Date: Mon, 3 Oct 2022 19:52:27 +0800
Subject: [PATCH] fix amd64 Base256 error

---
 decode_test.go | 4 ++--
 encode_amd64.s | 3 ++-
 2 files changed, 4 insertions(+), 3 deletions(-)

diff --git a/decode_test.go b/decode_test.go
index 318ffe5..e71bb1c 100644
--- a/decode_test.go
+++ b/decode_test.go
@@ -78,9 +78,9 @@ func TestDec16blk8(t *testing.T) {
 	}
 	n, _ := Base{bit: 8}.EncodeLen(32)
 	out := make([]byte, n)
-	enc16blk8(0x2333, in[:], out)
+	enc16blk8(0x1100, in[:], out)
 	t.Log(out)
-	dec16blk8(0x2333, out[:], tmp[:])
+	dec16blk8(0x1100, out[:], tmp[:])
 	assert.Equal(t, in, tmp)
 }
 
diff --git a/encode_amd64.s b/encode_amd64.s
index f735295..61691c6 100644
--- a/encode_amd64.s
+++ b/encode_amd64.s
@@ -146,8 +146,9 @@ TEXT ·enc16blk8(SB), NOSPLIT, $0-56
     CLD
 lop:
     LODSB
+    ANDW $0xff, AX
     // add mask
-    LEAW 0(AX)(BX*1), AX
+    ADDW BX, AX
     RORW $8, AX
     STOSW
     LOOP lop