--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/libiram/bcopy_chunk32.S	Thu Jun 09 00:02:41 2016 +0000
@@ -0,0 +1,27 @@
+/*
+ * bcopy_32byte_chunks() takes the same arguments as BSD bcopy(),
+ * but works on large chunks, specifically:
+ *
+ * - both addresses must be 32-bit word-aligned;
+ * - the count must be a non-zero multiple of 32 bytes;
+ * - the source and destination memory regions must not overlap.
+ *
+ * Arguments:
+ *
+ * R0: source address (word-aligned)
+ * R1: destination address (ditto)
+ * R2: byte count (must be a multiple of 32)
+ */
+
+	.text
+	.code	32
+
+	.globl	bcopy_32byte_chunks
+bcopy_32byte_chunks:
+	stmfd	sp!, {r4-r9}
+1:	ldmia	r0!, {r3-r9,r12}
+	stmia	r1!, {r3-r9,r12}
+	subs	r2, r2, #0x20
+	bhi	1b
+	ldmfd	sp!, {r4-r9}
+	bx	lr