Re: A89: Re: Re: Re: ASM without libraries
[Prev][Next][Index][Thread]
Re: A89: Re: Re: Re: ASM without libraries
The real rebel coder...
You make asm programming sound so easy... when I've been trying to write one
routine for days... You don't know how lucky you are to be so smart.
-Miles Raymond
----- Original Message -----
From: Olle Hedman <oh@hem.passagen.se>
To: <assembly-89@lists.ticalc.org>
Sent: Saturday, August 28, 1999 10:16 AM
Subject: Re: A89: Re: Re: Re: ASM without libraries
> handle romcalls is no problem!
> I have a6 always point to the jumptable and calls them with lines like
this:
>
> move.l HeapAlloc(a6),a0
> jsr (a0) ; Allocates 1600 bytes of RAM
>
> saves cycles and space.
> programming own functions is just fun :)
> but ok.. for grayscale I just snatched some code from gray4lib, it is
quite
> optimized.
> the int1 code atleast.
> (ofcourse I dont call the int1 routine after though)
> I always never use the standard screen (move it so i dont have to care
about
> clipping and such) so the graphic library functions are no good anyway :)
> for higperformanse asm/game/demo you dont use almost anything of tiOS
anyway
> (exept for allocating memory and stuff) so it doesnt really matter how it
is
> coded.
>
> file://Olle
>
> Niklas Brunlid wrote:
> >
> > > do you really mean without just libraries (that is no problem, just
dont use
> > > them)
> > > or do you mean without a shell? thats more tricky, I don't think there
is any
> > > publically available linkers for that out now. (I have one, but I
didn't make
> > > it, and I think I agreed not to spread it. because I already have one,
I dont
> > > care to make one myself.. If I did, I would release it)
> >
> > Actually, DoorsOS's linker supports the _nostub xdef. I've written a
program for
> > Dim-TI:s latest challenge that doesn't use shells or libraries with it,
but it's
> > a real pain to manually handle ROM calls and replace the library
functions (most
> > are in the ROM, but TI didn't exactly design them for asm/game/demo
> > programming...).
> >
> > / Niklas Brunlid
> > Check out Prosit for the TI-89 / TI-92 Plus at http://c625.sparta.lu.se
> > Random PQF Quote follows:
> >
> > A Thaum is the basic unit of magical strength. It has been universally
> > established as the amount of magic needed to create one small white
pigeon
> > or three normal sized billiard balls.
> > -- (Terry Pratchett, The Light Fantastic)
References: