[Coco] Ideas for a Graphics Project
robert.gault at worldnet.att.net
Mon Oct 24 22:52:30 EDT 2005
The POKEs actually tells Basic that the starting address of a Basic
program should be $6E00. When BALL is reloaded, there is then room for
the required PMODE4 screens.
If the program were revised for Coco3 use where the Basic code is in
RAM, a better way would be to replace line 5 with
With the above, it will not be necessary to reload the program. The POKE
tells Basic that a PCLEAR16 is legal, which automatically relocates the
program so that there is sufficient space for the command
PMODE3,13 to work.
Robert Emery wrote:
> BALL.BAS is an unrelated program from the Rainbow which uses page flipping to
> simulate a 3D moving graphic. To run it, you must first LOAD it and LIST5 (the
> first line.) Enter the POKEs in the REM statement, then reload the program and
> run it. The POKEs set up an extra PMODE4 page for Basic.
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