Module Name: src
Committed By: isaki
Date: Sat Aug 22 10:12:29 UTC 2020
Modified Files:
src/sys/arch/x68k/stand/xxboot: ashldi3.S
Log Message:
Minor improvement.
add/addx is faster and the size remains the same.
To generate a diff of this commit:
cvs rdiff -u -r1.2 -r1.3 src/sys/arch/x68k/stand/xxboot/ashldi3.S
Please note that diffs are not public domain; they are subject to the
copyright notices on the relevant files.
Modified files:
Index: src/sys/arch/x68k/stand/xxboot/ashldi3.S
diff -u src/sys/arch/x68k/stand/xxboot/ashldi3.S:1.2 src/sys/arch/x68k/stand/xxboot/ashldi3.S:1.3
--- src/sys/arch/x68k/stand/xxboot/ashldi3.S:1.2 Sat Aug 22 10:05:04 2020
+++ src/sys/arch/x68k/stand/xxboot/ashldi3.S Sat Aug 22 10:12:29 2020
@@ -1,4 +1,4 @@
-/* $NetBSD: ashldi3.S,v 1.2 2020/08/22 10:05:04 isaki Exp $ */
+/* $NetBSD: ashldi3.S,v 1.3 2020/08/22 10:12:29 isaki Exp $ */
/*
* Copyright (C) 2020 Tetsuya Isaki. All rights reserved.
@@ -37,8 +37,8 @@ ASENTRY_NOPROFILE(__ashldi3)
| %a0 = shift count
jbra start
loop:
- lsll #1,%d1 | X:%d1 <<= 1
- roxll #1,%d0 | %d0:X <<= 1
+ addl %d1,%d1 | X:%d1 <<= 1
+ addxl %d0,%d0 | %d0:X <<= 1
start:
subql #1,%a0 | sub %a0 doesn't affect ccr,
tstl %a0 | but this extra TST op is
