[A82] Re: TI82 ROM Version 19.006
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[A82] Re: TI82 ROM Version 19.006
I don't think a single program exists that calls romcalls in any non jp non
call way. No programs stuff a romcall into a pointer table then jump to it,
no programs self modify up a romcall from nowhere, the only way romcalls are
executed in practice is if they are explicitly called or jumped to. Find
one program that DOESN'T use conventional means (call, ROM_CALL, jp,
bcall...) to call romcalls... good luck!
>From: "Dines Justesen" <dines@aub.dk>
>Reply-To: assembly-82@lists.ticalc.org
>To: <assembly-82@lists.ticalc.org>
>Subject: [A82] Re: TI82 ROM Version 19.006
>Date: Wed, 4 Jul 2001 22:42:56 +0200
>
>
> > Wouldn't it be possible to write a program to replace the rom_calls with
> > nops then the proper call, and change any JP's or CALLS to rom addresses
> > with the correct new pointer address?
>
>It shouldn't be too hard to write a program like that, which would work for
>most regular programs. The difficult part is to avoid chaning an data which
>might be included in the program. (It is not that easy to check whether it
>is a call to the ROM or some bits in an image used by the program). The
>shell use selfmodifying code, and other things which would make the
>translation harder. So for most programs it could probably be done, but it
>might be easier to just recompile them if the source is available.
>
>Dines
>
>
>
>
>
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