[A83] Ambivalent Ion programs
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[A83] Ambivalent Ion programs
would it be possible to let an Ion program do one thing if ran from Ion
and another thing when ran from TIOS??
something like:
...blah blah...
#ifdef TI83P
.org progstart-2
.db $BB,$6D
#else
.org progstart
#endif
jr noion - to go to tios routine
jr start - to go to ion routine
.db "Nice program name",0
start:
...code...
noion:
...code...
I know this example would never work, because where i put "jr noion" it
takes 2 bytes, instead of the one byte (ret or xor a) in the ion header
another (maybe working) way would be:
...Ion header with xor a....
start:
ld hl, some place where ion routines reside
ld a,(hl)
cp (key-byte which would only be there when ion is ran)
jp nz, TIOS-Part
Any thoughts?
--peter martijn
P.S.
Don't come with "what uses would it have", it would be fun to use this
to impress friends or to make an ordinary ION program put a text like "I
hate the tios, run me from ion" when started from tios (or maybe crash
the calc, but that wouldn't be nice)