From f5a42a80688df6834ac38b5a005a13f2cdcba394 Mon Sep 17 00:00:00 2001 From: patacongo Date: Sun, 21 Oct 2012 05:38:24 +0000 Subject: [PATCH] Minor tweaks to memset git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5245 42af7a65-404d-4744-a932-0658087f49c3 --- configs/README.txt | 11 +++++++---- 1 file changed, 7 insertions(+), 4 deletions(-) diff --git a/configs/README.txt b/configs/README.txt index 9714b0228c6..c7f3db0e7b1 100644 --- a/configs/README.txt +++ b/configs/README.txt @@ -625,8 +625,9 @@ defconfig -- This is a configuration file similar to the Linux Vik's optimized implementation of memcpy(): CONFIG_MEMCPY_VIK - Select this option to use the optimized memcpy() - function by Daniel Vik. See licensing information in the top-level - COPYING file. Default: n + function by Daniel Vik. Select this option for improved performance + at the expense of increased size. See licensing information in the + top-level COPYING file. Default: n And if CONFIG_MEMCPY_VIK is selected, the following tuning options are available: @@ -636,7 +637,8 @@ defconfig -- This is a configuration file similar to the Linux CONFIG_MEMCPY_INDEXED_COPY - Copying data using array indexing. Using this option, disables the CONFIG_MEMCPY_PRE_INC_PTRS option. - CONFIG_MEMCPY_64BIT - Compiles memcpy for 64 bit architectures + CONFIG_MEMCPY_64BIT - Compiles memcpy for architectures that suppport + 64-bit operations efficiently. If CONFIG_ARCH_MEMSET is not selected, then the following option is also available: @@ -647,7 +649,8 @@ defconfig -- This is a configuration file similar to the Linux And if CONFIG_MEMSET_OPTSPEED is selected, the following tuning option is available: - CONFIG_MEMSET_64BIT - Compiles memset() for 64 bit architectures + CONFIG_MEMSET_64BIT - Compiles memset() for architectures that suppport + 64-bit operations efficiently. The architecture may provide custom versions of certain standard header files: