implemented another batch of small floating point routiines

c64/basic/math/bafe.div10_FAC1_p.s

@@ -0,0 +1,29 @@
+// #LAYOUT# STD *       #TAKE
+// #LAYOUT# X16 BASIC_0 #TAKE-OFFSET 2000
+// #LAYOUT# *   BASIC_0 #TAKE
+// #LAYOUT# *   *       #IGNORE
+
+//
+// Math package - divide FAC1 by 10, result is always positive
+//
+// Notes:
+// - shifts FAC1 to FAC2, loads FAC1 with the constant 10, falls through to the division routine
+
+//
+// See also:
+// - [CM64] Computes Mapping the Commodore 64 - page 114
+// - https://www.c64-wiki.com/wiki/Floating_point_arithmetic
+// - https://codebase64.org/doku.php?id=base:kernal_floating_point_mathematics
+//
+
+// XXX test this
+
+div10_FAC1_p:
+
+	lda #$00
+	sta FAC1_sign
+
+	ldy #>const_TEN
+	lda #<const_TEN
+
+	jmp div_MEM_FAC1