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authorLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
committerLinus Torvalds <torvalds@ppc970.osdl.org>2005-04-17 02:20:36 +0400
commit1da177e4c3f41524e886b7f1b8a0c1fc7321cac2 (patch)
tree0bba044c4ce775e45a88a51686b5d9f90697ea9d /arch/m68knommu/lib/memcpy.c
downloadlinux-1da177e4c3f41524e886b7f1b8a0c1fc7321cac2.tar.xz
Linux-2.6.12-rc2v2.6.12-rc2
Initial git repository build. I'm not bothering with the full history, even though we have it. We can create a separate "historical" git archive of that later if we want to, and in the meantime it's about 3.2GB when imported into git - space that would just make the early git days unnecessarily complicated, when we don't have a lot of good infrastructure for it. Let it rip!
Diffstat (limited to 'arch/m68knommu/lib/memcpy.c')
-rw-r--r--arch/m68knommu/lib/memcpy.c63
1 files changed, 63 insertions, 0 deletions
diff --git a/arch/m68knommu/lib/memcpy.c b/arch/m68knommu/lib/memcpy.c
new file mode 100644
index 000000000000..0d5577569e4c
--- /dev/null
+++ b/arch/m68knommu/lib/memcpy.c
@@ -0,0 +1,63 @@
+
+#include <linux/types.h>
+#include <linux/autoconf.h>
+
+void * memcpy(void * to, const void * from, size_t n)
+{
+#ifdef CONFIG_COLDFIRE
+ void *xto = to;
+ size_t temp;
+
+ if (!n)
+ return xto;
+ if ((long) to & 1)
+ {
+ char *cto = to;
+ const char *cfrom = from;
+ *cto++ = *cfrom++;
+ to = cto;
+ from = cfrom;
+ n--;
+ }
+ if (n > 2 && (long) to & 2)
+ {
+ short *sto = to;
+ const short *sfrom = from;
+ *sto++ = *sfrom++;
+ to = sto;
+ from = sfrom;
+ n -= 2;
+ }
+ temp = n >> 2;
+ if (temp)
+ {
+ long *lto = to;
+ const long *lfrom = from;
+ for (; temp; temp--)
+ *lto++ = *lfrom++;
+ to = lto;
+ from = lfrom;
+ }
+ if (n & 2)
+ {
+ short *sto = to;
+ const short *sfrom = from;
+ *sto++ = *sfrom++;
+ to = sto;
+ from = sfrom;
+ }
+ if (n & 1)
+ {
+ char *cto = to;
+ const char *cfrom = from;
+ *cto = *cfrom;
+ }
+ return xto;
+#else
+ const char *c_from = from;
+ char *c_to = to;
+ while (n-- > 0)
+ *c_to++ = *c_from++;
+ return((void *) to);
+#endif
+}