From 50a6ca39ad4ed01922aa4f755f0ca579788226cf Mon Sep 17 00:00:00 2001
From: Thomas Martitz <kugel@rockbox.org>
Date: Thu, 6 May 2010 21:04:40 +0000
Subject: Move c/h files implementing/defining standard library stuff into a
 new libc directory, also standard'ify some parts of the code base (almost
 entirely #include fixes). This is to a) to cleanup firmware/common and
 firmware/include a bit, but also b) for Rockbox as an application which
 should use the host system's c library and headers, separating makes it easy
 to exclude our files from the build.

git-svn-id: svn://svn.rockbox.org/rockbox/trunk@25850 a1c6a512-1295-4272-9138-f99709370657
---
 firmware/common/memmove.c | 147 ----------------------------------------------
 1 file changed, 147 deletions(-)
 delete mode 100644 firmware/common/memmove.c

(limited to 'firmware/common/memmove.c')

diff --git a/firmware/common/memmove.c b/firmware/common/memmove.c
deleted file mode 100644
index 5f423964bb..0000000000
--- a/firmware/common/memmove.c
+++ /dev/null
@@ -1,147 +0,0 @@
-/*
-FUNCTION
-        <<memmove>>---move possibly overlapping memory
-
-INDEX
-        memmove
-
-ANSI_SYNOPSIS
-        #include <string.h>
-        void *memmove(void *<[dst]>, const void *<[src]>, size_t <[length]>);
-
-TRAD_SYNOPSIS
-        #include <string.h>
-        void *memmove(<[dst]>, <[src]>, <[length]>)
-        void *<[dst]>;
-        void *<[src]>;
-        size_t <[length]>;
-
-DESCRIPTION
-        This function moves <[length]> characters from the block of
-        memory starting at <<*<[src]>>> to the memory starting at
-        <<*<[dst]>>>. <<memmove>> reproduces the characters correctly
-        at <<*<[dst]>>> even if the two areas overlap.
-
-
-RETURNS
-        The function returns <[dst]> as passed.
-
-PORTABILITY
-<<memmove>> is ANSI C.
-
-<<memmove>> requires no supporting OS subroutines.
-
-QUICKREF
-        memmove ansi pure
-*/
-
-#include "config.h"
-#include <_ansi.h>
-#include <string.h>
-
-/* Nonzero if either X or Y is not aligned on a "long" boundary.  */
-#define UNALIGNED(X, Y) \
-  (((long)X & (sizeof (long) - 1)) | ((long)Y & (sizeof (long) - 1)))
-
-/* How many bytes are copied each iteration of the 4X unrolled loop.  */
-#define BIGBLOCKSIZE    (sizeof (long) << 2)
-
-/* How many bytes are copied each iteration of the word copy loop.  */
-#define LITTLEBLOCKSIZE (sizeof (long))
-
-/* Threshhold for punting to the byte copier.  */
-#define TOO_SMALL(LEN)  ((LEN) < BIGBLOCKSIZE)
-
-_PTR
-_DEFUN (memmove, (dst_void, src_void, length),
-        _PTR dst_void _AND
-        _CONST _PTR src_void _AND
-        size_t length) ICODE_ATTR;
-
-_PTR
-_DEFUN (memmove, (dst_void, src_void, length),
-        _PTR dst_void _AND
-        _CONST _PTR src_void _AND
-        size_t length)
-{
-#if defined(PREFER_SIZE_OVER_SPEED) || defined(__OPTIMIZE_SIZE__)
-  char *dst = dst_void;
-  _CONST char *src = src_void;
-
-  if (src < dst && dst < src + length)
-    {
-      /* Have to copy backwards */
-      src += length;
-      dst += length;
-      while (length--)
-        {
-          *--dst = *--src;
-        }
-    }
-  else
-    {
-      while (length--)
-        {
-          *dst++ = *src++;
-        }
-    }
-
-  return dst_void;
-#else
-  char *dst = dst_void;
-  _CONST char *src = src_void;
-  long *aligned_dst;
-  _CONST long *aligned_src;
-  unsigned int   len =  length;
-
-  if (src < dst && dst < src + len)
-    {
-      /* Destructive overlap...have to copy backwards */
-      src += len;
-      dst += len;
-      while (len--)
-        {
-          *--dst = *--src;
-        }
-    }
-  else
-    {
-      /* Use optimizing algorithm for a non-destructive copy to closely 
-         match memcpy. If the size is small or either SRC or DST is unaligned,
-         then punt into the byte copy loop.  This should be rare.  */
-      if (!TOO_SMALL(len) && !UNALIGNED (src, dst))
-        {
-          aligned_dst = (long*)dst;
-          aligned_src = (long*)src;
-
-          /* Copy 4X long words at a time if possible.  */
-          while (len >= BIGBLOCKSIZE)
-            {
-              *aligned_dst++ = *aligned_src++;
-              *aligned_dst++ = *aligned_src++;
-              *aligned_dst++ = *aligned_src++;
-              *aligned_dst++ = *aligned_src++;
-              len -= BIGBLOCKSIZE;
-            }
-
-          /* Copy one long word at a time if possible.  */
-          while (len >= LITTLEBLOCKSIZE)
-            {
-              *aligned_dst++ = *aligned_src++;
-              len -= LITTLEBLOCKSIZE;
-            }
-
-          /* Pick up any residual with a byte copier.  */
-          dst = (char*)aligned_dst;
-          src = (char*)aligned_src;
-        }
-
-      while (len--)
-        {
-          *dst++ = *src++;
-        }
-    }
-
-  return dst_void;
-#endif /* not PREFER_SIZE_OVER_SPEED */
-}
-- 
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