left shift 32-bit

nerdralph · nerdralph · commit 3a761ad315c0 · 2020-08-21T16:00:29.000-03:00
diff --git a/src/lsl4_r22_r30.S b/src/lsl4_r22_r30.S
@@ -0,0 +1,14 @@
+; (c) Ralph Doncaster 2020
+; ArduinoShrink
+
+; shift left r22-r25 (ulong), arg in r30
+.global lsl4_r22_r30
+lsl4_r22_r30:
+    lsl r22
+    rol r23
+    rol r24
+    rol r25
+    dec r30
+    brne lsl4_r22_r30
+ret
+
