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authorBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2008-10-03 13:59:52 +0000
committerBernhard Reutner-Fischer <rep.dot.nop@gmail.com>2008-10-03 13:59:52 +0000
commit2ba017a2d5af01cc3ef0dc554252a521e8d7c4f8 (patch)
tree0e0db7e3fbb4fbe1be3c56ad6c80bb7d63effb93 /libc/string/xtensa/strlen.S
parent94bbeb72728193288f2bf071cf0e40293499045b (diff)
- use c89-style comments
Closes issue #5194
Diffstat (limited to 'libc/string/xtensa/strlen.S')
-rw-r--r--libc/string/xtensa/strlen.S56
1 files changed, 28 insertions, 28 deletions
diff --git a/libc/string/xtensa/strlen.S b/libc/string/xtensa/strlen.S
index dd72c16fa..9ee4995f4 100644
--- a/libc/string/xtensa/strlen.S
+++ b/libc/string/xtensa/strlen.S
@@ -36,7 +36,7 @@
ENTRY (strlen)
/* a2 = s */
- addi a3, a2, -4 // because we overincrement at the end
+ addi a3, a2, -4 /* because we overincrement at the end */
movi a4, MASK0
movi a5, MASK1
movi a6, MASK2
@@ -45,21 +45,21 @@ ENTRY (strlen)
bbsi.l a2, 1, .L2mod4
j .Laligned
-.L1mod2: // address is odd
- l8ui a8, a3, 4 // get byte 0
- addi a3, a3, 1 // advance string pointer
- beqz a8, .Lz3 // if byte 0 is zero
- bbci.l a3, 1, .Laligned // if string pointer is now word-aligned
+.L1mod2: /* address is odd */
+ l8ui a8, a3, 4 /* get byte 0 */
+ addi a3, a3, 1 /* advance string pointer */
+ beqz a8, .Lz3 /* if byte 0 is zero */
+ bbci.l a3, 1, .Laligned /* if string pointer is now word-aligned */
-.L2mod4: // address is 2 mod 4
- addi a3, a3, 2 // advance ptr for aligned access
- l32i a8, a3, 0 // get word with first two bytes of string
- bnone a8, a6, .Lz2 // if byte 2 (of word, not string) is zero
- bany a8, a7, .Laligned // if byte 3 (of word, not string) is nonzero
+.L2mod4: /* address is 2 mod 4 */
+ addi a3, a3, 2 /* advance ptr for aligned access */
+ l32i a8, a3, 0 /* get word with first two bytes of string */
+ bnone a8, a6, .Lz2 /* if byte 2 (of word, not string) is zero */
+ bany a8, a7, .Laligned /* if byte 3 (of word, not string) is nonzero */
/* Byte 3 is zero. */
- addi a3, a3, 3 // point to zero byte
- sub a2, a3, a2 // subtract to get length
+ addi a3, a3, 3 /* point to zero byte */
+ sub a2, a3, a2 /* subtract to get length */
retw
@@ -69,36 +69,36 @@ ENTRY (strlen)
/* (2 mod 4) alignment for loop instruction */
.Laligned:
#if XCHAL_HAVE_LOOPS
- _movi.n a8, 0 // set up for the maximum loop count
- loop a8, .Lz3 // loop forever (almost anyway)
+ _movi.n a8, 0 /* set up for the maximum loop count */
+ loop a8, .Lz3 /* loop forever (almost anyway) */
#endif
-1: l32i a8, a3, 4 // get next word of string
- addi a3, a3, 4 // advance string pointer
- bnone a8, a4, .Lz0 // if byte 0 is zero
- bnone a8, a5, .Lz1 // if byte 1 is zero
- bnone a8, a6, .Lz2 // if byte 2 is zero
+1: l32i a8, a3, 4 /* get next word of string */
+ addi a3, a3, 4 /* advance string pointer */
+ bnone a8, a4, .Lz0 /* if byte 0 is zero */
+ bnone a8, a5, .Lz1 /* if byte 1 is zero */
+ bnone a8, a6, .Lz2 /* if byte 2 is zero */
#if XCHAL_HAVE_LOOPS
- bnone a8, a7, .Lz3 // if byte 3 is zero
+ bnone a8, a7, .Lz3 /* if byte 3 is zero */
#else
- bany a8, a7, 1b // repeat if byte 3 is non-zero
+ bany a8, a7, 1b /* repeat if byte 3 is non-zero */
#endif
.Lz3: /* Byte 3 is zero. */
- addi a3, a3, 3 // point to zero byte
+ addi a3, a3, 3 /* point to zero byte */
/* Fall through.... */
.Lz0: /* Byte 0 is zero. */
- sub a2, a3, a2 // subtract to get length
+ sub a2, a3, a2 /* subtract to get length */
retw
.Lz1: /* Byte 1 is zero. */
- addi a3, a3, 1 // point to zero byte
- sub a2, a3, a2 // subtract to get length
+ addi a3, a3, 1 /* point to zero byte */
+ sub a2, a3, a2 /* subtract to get length */
retw
.Lz2: /* Byte 2 is zero. */
- addi a3, a3, 2 // point to zero byte
- sub a2, a3, a2 // subtract to get length
+ addi a3, a3, 2 /* point to zero byte */
+ sub a2, a3, a2 /* subtract to get length */
retw
libc_hidden_def (strlen)