Re: A86: New Shell/Differences between ROM versions
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Re: A86: New Shell/Differences between ROM versions
But, _FindAlphaDn and _FindAlphaUp are REALLY slow. Chicane did some kind of
research on it, and he found out it was just incredibly slow. So, if you are
going to make a big nice shell, search the VAT. It's big, but it's super
fast.
>
> why must everyone always use acronyms???
>
> my suggestion to someone new to assembly would be to try something
> simpler first. if you're up to it though, good luck!
>
> afaik, the only difference in rom versions is bug fixes. if you use page
> d calls only (or patch your code from there), you shouldn't need to care
> about different rom versions.
>
> testing the battery level is done by comparing how fast instructions are
> running on the cpu to other parts of the calc. the rom does this by
> setting a mask on the keyboard and waiting for it to expire, i believe
> you can also create an interrupt handler and compare the frequency it
> gets called to main program speed.
>
> to find a list of prgm and string vars, repeatedly call _FindAlphaDn (or
> up), starting with the name 1,0 (i think; 1 being the length byte) and
> check the type for each var you find, adding only the ones you want.
>
> as for the longname idea, why not have a chunk of data attached to the
> end? then you could allow people to add their own longnames to programs
> that don't have them and it wouldn't interfere with anything.
>
> -josh
>
> On Fri, 7 Jan 2000 20:28:16 EST Appelkore@aol.com writes:
> >
> >Hi everyone,
> >
> >I'm new to this list and relatively new to ASM, but for a few years
> >now I
> >have been wishing there was a shell with all the features I wanted
> >that also
> >looked nice, didn't hog a lot of space, and didn't crash all the time.
> >After
> >trying all of them, YAS is the best I found, but it still doesn't fit
> >my
> >needs perfectly. I decided I should make my own.
> >
> >My shell (tentatively titled ACIDshell, for Advanced Calculator
> >Interface/Directory) is well underway, but still has enough bugs and
> >missing
> >features that I don't feel comfortable releasing a beta yet. My
> >question is
> >this: Where can I find a complete list of the differences between
> >every ROM
> >version of the 86?
> >
> >Please email me any answers or workarounds to the version differences,
> >any
> >features you would like to see in a new shell, or any other advice or
> >
> >assistance you think would be helpful to someone relatively new to ASM
> >doing
> >something relatively complex.
> >I am also having problems in the following areas: 85 emulation;
> >support for
> >icons and longnames*; getting a list of programs and strings
> >installed; and
> >testing the battery level. Please email me any suggestions you have in
> >these
> >areas.
> >*A longname is a format I am considering where, instead of listing
> >programs
> >by their variable name, showing a string similar to the title string
> >but
> >shorter. After the lines ".dw title" and the less common ".dw icon" a
> >
> >programmer would add ".dw longname" and then declare the string
> >longname:
> >title: .db "My Program v4.2 (c)2000 by Me",0
> >icon: .db "11100010", etc.
> >longname: .db "My Program",0
> >Thus the title string, containing name/author/version/copyright, need
> >not be
> >displayed except on request, freeing up more screen real estate to
> >list more
> >programs simultaneously. I welcome programmers of games and shells to
> >support
> >this new format, unless you think it's a bad idea. Please email me and
> >tell
> >me what you think of it so I can decide whether to keep it or dump
> >it.
> >
> >-- Jonathan Marcus
> >Appelkore@aol.com
> >irc: appelkore
> >
>
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