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| author | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-10-21 01:31:56 +0000 |
|---|---|---|
| committer | patacongo <patacongo@42af7a65-404d-4744-a932-0658087f49c3> | 2012-10-21 01:31:56 +0000 |
| commit | 1dbd8d3bf87c8c4a0bb55fce3e3a01d929db9dee (patch) | |
| tree | 327e896f150fa1860a1646e7f2ce85d29a1fa586 /nuttx/Documentation | |
| parent | b007f9897061c921e685d3970035228f21a2e506 (diff) | |
| download | px4-nuttx-1dbd8d3bf87c8c4a0bb55fce3e3a01d929db9dee.tar.gz px4-nuttx-1dbd8d3bf87c8c4a0bb55fce3e3a01d929db9dee.tar.bz2 px4-nuttx-1dbd8d3bf87c8c4a0bb55fce3e3a01d929db9dee.zip | |
Optimized memset() can be configured to do 64-bit stores
git-svn-id: svn://svn.code.sf.net/p/nuttx/code/trunk@5243 42af7a65-404d-4744-a932-0658087f49c3
Diffstat (limited to 'nuttx/Documentation')
| -rw-r--r-- | nuttx/Documentation/NuttxPortingGuide.html | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/nuttx/Documentation/NuttxPortingGuide.html b/nuttx/Documentation/NuttxPortingGuide.html index e43ca8a2f..08c6534cb 100644 --- a/nuttx/Documentation/NuttxPortingGuide.html +++ b/nuttx/Documentation/NuttxPortingGuide.html @@ -4457,7 +4457,7 @@ build </li></ul> <p> - And if <code>CONFIG_MEMCPY_VIK</code>, the following tuning options are available: + And if <code>CONFIG_MEMCPY_VIK</code> is selected, the following tuning options are available: </p> <ul><li> <code>CONFIG_MEMCPY_PRE_INC_PTRS</code>: @@ -4471,7 +4471,7 @@ build </li> <li> <code>CONFIG_MEMCPY_64BIT</code>: - Compiles memcpy for 64 bit architectures + Compiles <code>memcpy()</code> for 64 bit architectures </li></ul> <p><li> @@ -4483,6 +4483,14 @@ build Default: <code>memset()</code> is optimized for size. </li></ul> +<p> + And if <code>CONFIG_MEMSET_OPTSPEED</code> is selected, the following tuning option is available: +</p> +<ul><li> + <code>CONFIG_MEMSET_64BIT</code>: + Compiles <code>memset()</code> for 64 bit architectures +</li></ul> + <li> <p> The architecture may provide custom versions of certain standard header files: |