Apple-2-SW
/
dos33fsprogs
mirror of https://github.com/deater/dos33fsprogs.git
1
0
Fork 0
Code Issues Projects Releases Wiki Activity

spiral: more code comments

This commit is contained in:
Vince Weaver 2024-04-26 10:43:29 -04:00
parent f2f013df67
commit 0e657e6b4e
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
demos/lovebyte2024/spiraling_shape_32/spiral_32.s
View File

@ -25,7 +25,8 @@ XDRAW1 = $F661
HPLOT0 = $F457
spiraling_shape:
jsr HGR2 ; Hi-res, full screen ; 3
jsr HGR2 ; Set Hi-resolution (140x192) mode
; HGR2 means use PAGE2 and no text at bottom
; Y=0, A=0 after this call
; A and Y are 0 here.
@ -73,7 +74,8 @@ tiny_loop:
our_shape = $E2DF ; location in the Applesoft ROM
; that holds $11,$F0,$03,$20,$00
; which makes a nice line in shape table
; which makes a nice line when
; interpreted as a shape table
; (it points into the code for the FRE()
; BASIC routine but that's not important)