implemented 2 more simple math routines

c64/basic/math/bc0c.MOVAF.s

@@ -0,0 +1,22 @@
+// #LAYOUT# STD *       #TAKE
+// #LAYOUT# *   BASIC_0 #TAKE
+// #LAYOUT# *   *       #IGNORE
+
+//
+// Math package - round and move FAC1 to FAC2
+//
+// Output:
+// - .A - FAC1 exponent
+//
+// See also:
+// - [CM64] Computes Mapping the Commodore 64 - page 115
+// - https://www.c64-wiki.com/wiki/BASIC-ROM
+// - https://www.c64-wiki.com/wiki/Floating_point_arithmetic
+//
+
+MOVAF:
+
+	// First round FAC1
+	jsr ROUND
+
+	// FALLTROUGH to MOVFA