spiral: putting way too much work ingo this

think I understand what's going on fully now though

demos/lovebyte2024/spiraling_shape_32/spiral.shape

@@ -0,0 +1,10 @@
+# reverse engineering what the pattern we picked actually looks like
+#
+# Number of shapes
+1
+START
+NRT NDN NOP
+NUP DN NLT
+NLT NUP NOP
+NUP UP NOP
+STOP

demos/lovebyte2024/spiraling_shape_32/spiral_32.s

@@ -93,8 +93,8 @@ tiny_loop:
 
 our_shape = $E2DF		; location in the Applesoft ROM
 				; that holds $11,$F0,$03,$20,$00
-				; which makes an offset right-angle
-				; double line-ish pattern when
+				; which makes two offset lines,
+				; one up, one down, when
 				; interpreted as a shape table
 				; (it points into the code for the FRE()
 				;  BASIC routine but that's not important)
@@ -118,7 +118,7 @@ our_shape = $E2DF		; location in the Applesoft ROM
 
 ; x is the starting point, * are the two line segments drawn
 
-;                      .
+;                      ^
 ;                      *
 ;                      . x *
-;                      . . .
+;                      . . V

demos/lovebyte2024/spiraling_shape_32/spiral_test.bas

@@ -0,0 +1,7 @@
+10 HIMEM:8167
+20 POKE 232,231:POKE 233,31
+30 FOR L=8167 TO 8175: READ B:POKE L,B:NEXT L
+35 HGR:ROT=0:SCALE=2
+40 FOR I=1 TO 1: XDRAW I AT I*10,100:NEXT I
+90 END
+100 DATA 1,0,4,0,17,240,3,32,0