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> I've discovered the RCX is in long range mode UNTIL I send it a POWER_INIT
> pbForth command. Pity... what's the way around this, anyone ?
Disclaimer: I didn't try ANYTHING of this...
According to Kekoa's Internals, the ROM routine 0x3250 (0x3266) with
parameter 0x1770 sets the IR range to long (short). So you need to do
something like:
push 0x1770
jsr 0x3250
pop ; Stack should be cleaned by caller
Either add a word along these lines to pbforth.asm, or try the following
quick hack in forth:
HEX
CREATE ((long)) 5E00 , 3250 , 5A00 , ' EXIT ,
: (long) ((long)) EXECUTE ;
: long 1770 (long) DROP ;
The ((long)) word is: jsr 3250, jmp exit.
(long) does a jmp ((long)) - so the exit in ((long)) actually exits from
(long)! It's a weird hack but the easiest way I could think of to fake a CODE
definition in colon-forth.
BTW, Kekoa says that 0x3250 clears bit 0 of ffb7, and 3266 sets it. Maybe
just doing
HEX FFB7 DUP C@ FE AND SWAP C!
suffices. Just try it or disassemble the function to be sure.
Ernst
--
Ernst de Ridder - hnridder@informatik.uni-rostock.de
Universitaet Rostock - Lehrstuhl fuer Theoretische Informatik
Albert Einstein Str. 21 - D-18051 Rostock - Germany
http://wwwteo.informatik.uni-rostock.de/~hnridder
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