#: 12523 S10/OS9/6809 (CoCo)
    06-Oct-91  20:18:23
Sb: #LOGO just might work
Fm: REX GOODE 73777,3663
To: All

 While browsing through my D.L. Logo manual, I noticed a remote control section
that described how to use Logo to control remote devices. This may be the
answer I was hoping for to update D.L. Logo to work with my CM-8 monitor. I
might even be able to get more colors and higher resolution.
 When "LOGO" is executed from OS9, it checks for a module in memory called
"Turtle". If such a module is in memory, then all Logo Turtle commands are
routed through that module as a subroutine, with registers holding the command
and parameters, returned with an RTS.
 I'm a fair EDTASM programmer under RSDOS, but I don't even have an assembler
for OS9 and don't know where to begin. If I can figure out how, I can write
this assembler program to control the turtle on the higher resolutions instead
of artifact screens.
 Is there a way to write the module mostly under RS-DOS and then somehow
transfer it to OS9? Is there a cheap (almost free) way to program in assembly
or machine language in OS9? What entries and exits must my module have? Am I
wasting my time?
 Rex



There is 1 Reply.