Reference Guide

2-40 RPL Programming Examples
Program: Comments:
{ # 0d # 25d }
PICT OVER walk GXOR
Puts the first position on the
stack and turns on the first
image. This readies the stack
and PICT for the loop.
5 MAXR FOR i
Starts the loop to generate
horizontal coordinates
indefinitely.
i 131 MOD R→B
Computes the horizontal
coordinate for the next image.
# 25d 2 →LIST
Specifies a fixed vertical
coordinate. Puts the two
coordinates in a list.
PICT OVER walk GXOR
Displays the new image, leaving
its coordinates on the stack.
PICT ROT walk GXOR
Turns off the old image,
removing its coordinates from
the stack.
0.2 WAIT 5 STEP
Increments the horizontal
coordinate by 5.
»
»
`O WALK K
Stores the program in WALK.
Checksum: # 28684d
Bytes: 250.0
Example: Send the small person out for a walk.
J %WALK%
Press − when you think the walker’s tired.