Linux-2.6.12-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!
diff --git a/arch/v850/lib/memset.c b/arch/v850/lib/memset.c
new file mode 100644
index 0000000..d1b2ad8
--- /dev/null
+++ b/arch/v850/lib/memset.c
@@ -0,0 +1,68 @@
+/*
+ * arch/v850/lib/memset.c -- Memory initialization
+ *
+ * Copyright (C) 2001,02,04 NEC Corporation
+ * Copyright (C) 2001,02,04 Miles Bader <miles@gnu.org>
+ *
+ * This file is subject to the terms and conditions of the GNU General
+ * Public License. See the file COPYING in the main directory of this
+ * archive for more details.
+ *
+ * Written by Miles Bader <miles@gnu.org>
+ */
+
+#include <linux/types.h>
+
+void *memset (void *dst, int val, __kernel_size_t count)
+{
+ if (count) {
+ register unsigned loop;
+ register void *ptr asm ("ep") = dst;
+
+ /* replicate VAL into a long. */
+ val &= 0xff;
+ val |= val << 8;
+ val |= val << 16;
+
+ /* copy initial unaligned bytes. */
+ if ((long)ptr & 1) {
+ *(char *)ptr = val;
+ ptr = (void *)((char *)ptr + 1);
+ count--;
+ }
+ if (count > 2 && ((long)ptr & 2)) {
+ *(short *)ptr = val;
+ ptr = (void *)((short *)ptr + 1);
+ count -= 2;
+ }
+
+ /* 32-byte copying loop. */
+ for (loop = count / 32; loop; loop--) {
+ asm ("sst.w %0, 0[ep]; sst.w %0, 4[ep];"
+ "sst.w %0, 8[ep]; sst.w %0, 12[ep];"
+ "sst.w %0, 16[ep]; sst.w %0, 20[ep];"
+ "sst.w %0, 24[ep]; sst.w %0, 28[ep]"
+ :: "r" (val) : "memory");
+ ptr += 32;
+ }
+ count %= 32;
+
+ /* long copying loop. */
+ for (loop = count / 4; loop; loop--) {
+ *(long *)ptr = val;
+ ptr = (void *)((long *)ptr + 1);
+ }
+ count %= 4;
+
+ /* finish up with any trailing bytes. */
+ if (count & 2) {
+ *(short *)ptr = val;
+ ptr = (void *)((short *)ptr + 1);
+ }
+ if (count & 1) {
+ *(char *)ptr = val;
+ }
+ }
+
+ return dst;
+}