From 2601b8ee61315a8faac65ded8950cebf168f83c2 Mon Sep 17 00:00:00 2001
From: faissaloo <faissaloo@gmail.com>
Date: Mon, 25 Jul 2016 10:43:50 +0100
Subject: Faster strlen

---
 sh     | Bin 1688 -> 1688 bytes
 sh.asm |  18 +++++++++---------
 2 files changed, 9 insertions(+), 9 deletions(-)

diff --git a/sh b/sh
index 4257040..55db507 100755
Binary files a/sh and b/sh differ
diff --git a/sh.asm b/sh.asm
index 063bae1..ef147ac 100644
--- a/sh.asm
+++ b/sh.asm
@@ -318,15 +318,15 @@ _parse7: ; absolute path
 ;input: r12 (return address), r15 (buffer)
 ;output: r8 (length)
 _strlen:
-	xor r8, r8
-
-_strlen1:
-	cmp byte [r8+r15], 0x0
-	je _parse1
-	cmp byte [r8+r15], 0xa
-	je _parse1
-	inc r8
-	jmp _strlen1
+	mov r8, -17 ;We're always going to have to take 1 away because of the newline
+	xchg rsi, rcx ;bacup rcx, let rsi get clobbered
+	_strlen1:
+		add r8, 16
+		PcmpIstrI xmm0, [r15+r8],0
+		jnz _strlen1
+	add r8, rcx
+	xchg rsi,rcx
+	jmp _parse1
 
 ; input: rcx (a), r13 (b)
 ; output: rbx (string)
-- 
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