Re: A86: Re: TI's ROM Sux


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Re: A86: Re: TI's ROM Sux






Matt Johnson wrote:

> >> really?  tell ti, they used add
> >
> >I really wonder about the quality of some of their ROM coders...
> >Half the people on the list could do a much better job. They use
> >jp in some of the link port code to move PC up/down less than
> >10 instructions!
> >
> >Was the 8X ROM written in C as well? I believe the 92 ROM was.
> >Then again, if they have a whole ROM chip to play with they
> >can waste as damn much as they want.
>
> JP is faster then JR when no conditions are involved.
>
> When conditions are involved, use JR when there is more of a chance
> that the code will "fall through", else use JP
>
> Trust me, I am sure TI has guys who can program better then us.
> I'm sure all of them have EE or Computer Science degrees. Do you?
>
> Later,
>     Matt

 I don't know ... _exec_pg3 does all kinds of crazy stuff with the
stack; it would have been a lot prettier if they just used jp (hl).


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