From 801626b26745a1bd24cbf56c3d8720204a1db95d Mon Sep 17 00:00:00 2001 From: Joseph Myers Date: Wed, 1 Jul 2009 14:37:15 +0000 Subject: Correct ARM memcpy comments. The comments on register usage in ARM memcpy had dest and src the wrong way round; this patch (originally from Mark Shinwell) corrects this and adds a note on the return value. Signed-off-by: Joseph Myers --- libc/string/arm/_memcpy.S | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) (limited to 'libc/string/arm') diff --git a/libc/string/arm/_memcpy.S b/libc/string/arm/_memcpy.S index 1dc0887a4..b26080d02 100644 --- a/libc/string/arm/_memcpy.S +++ b/libc/string/arm/_memcpy.S @@ -67,8 +67,9 @@ * a time where possible. * * Note: r12 (aka ip) can be trashed during the function along with - * r0-r3 although r0-r2 have defined uses i.e. src, dest, len through out. + * r0-r3 although r0-r2 have defined uses i.e. dest, src, len throughout. * Additional registers are preserved prior to use i.e. r4, r5 & lr + * The return value in r0 must be the destination address. * * Apologies for the state of the comments ;-) */ -- cgit v1.2.3