Subject:
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Re: Interactive C Primitives
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Newsgroups:
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lugnet.robotics.handyboard
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Date:
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Sun, 7 Feb 1999 13:38:45 GMT
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Original-From:
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Fred G. Martin <fredm@media.NOMORESPAMmit.edu>
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Viewed:
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1062 times
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these are documented in sec 5.10 of the hb tech ref.
the larger issue is knowing the places you are supposed to peek and
poke. some of these are hardware specific (e.g, motor port); others
are software based/defined in the pcode implementation (e.g., system
time).
these are largely undocumented (esp the software ones) b/c they're not
an interface we wanted to expose to the user.
fred
In your message you said:
> There are several IC primitives for which I cannot
> find documentation nor source, such as:
>
> poke, peek, pokeword, peekword, bit_set, bit_clear
>
> These six are relatively simple to figure out by
> context and familiarity with other languages, but
> I find myself wondering what other primitives, and
> what nuances or caveats I may be missing.
>
> Can someone point me to documentation/source for
> IC primitives not documented in the HB Tech Reference,
> lib_hb.c or lib_hb.asm ... or at least a list of
> what primitives are available. Or possibly point
> out that these primitives are documented in plain
> sight and I'm just being dense.
>
> All responses will be appreciated.
> - - - Nick - - -
>
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Message has 1 Reply:
 | | Re: Interactive C Primitives
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| [Fred G. Martin] spake unto the ether: (...) Security through obscurity is always a bad idea :-) I can agree that software data structures are not public, but all the hardware stuff should be documented, since it's not likely to move around. *Rich* (26 years ago, 7-Feb-99, to lugnet.robotics.handyboard)
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Message is in Reply To:
| | Interactive C Primitives
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| There are several IC primitives for which I cannot find documentation nor source, such as: poke, peek, pokeword, peekword, bit_set, bit_clear These six are relatively simple to figure out by context and familiarity with other languages, but I find (...) (26 years ago, 7-Feb-99, to lugnet.robotics.handyboard)
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