Add support for pl3_memcpy of size 0

kakaroto · Oct 6, 2010 · 1d5a9fc · 1d5a9fc
1 parent 97412de
commit 1d5a9fc
Showing 1 changed file with 4 additions and 2 deletions.
diff --git a/pl3_memcpy.h.S b/pl3_memcpy.h.S
@@ -15,11 +15,13 @@
 
 .align 4
 pl3_memcpy:
+	cmpldi	%r5, 0			// if %r5 reaches 0, end it
+	beq	l_pl3_memcpy_done
 	subi	%r5, %r5, 1		// set %r5 to read the previous byte
 	lbzx	%r6, %r3, %r5		// Copy byte content of %r3[%r5] to %r6
 	stbx	%r6, %r4, %r5		// Store byte %r6 to %r4[%r5]
-	cmpldi	%r5, 0			// if %r5 reaches 0, end it
-	bne	pl3_memcpy
+	b	pl3_mempcy
+l_pl3_memcpy_done:
 	blr
 
 #endif /* __PL3_MEMCPY_H_S__ */