Re: 6502 Assembler books

[Alistair Ross <removemeajross@atxboltdot.net>]

Michael J. Mahon wrote:
> Charles Richmond wrote:
>
>
> > I have _ 6502 Assembly Language Subroutines_ and I think it sucks...
>
>
> I agree.
>
> Many "library"-type books for specific processors seem to be
> hack translations of libraries originally written for another
> processor.
>
> Generic libraries must assume some canonical method of
> passing parameters, which generally is a crock.
>
> Further, the specific programming tricks for a certain machine
> are often completely neglected--exactly the kinds of things that
> any budding assembly language programmer needs to become
> familiar with.
>
> As soon as you have your "sea legs" with a particular processor,
> you should try to find some well-written code for it that will teach
> you some ways to organize data and write good code.
>
> For the 6502, the Apple II monitor is quite instructive to read.
>
> The Applesoft interpreter is very uneven, with some clever 
> code but lots of silly code.  It has the look of something done
> by a committee.  ;-(  But even in that case, the _bugs_ are
> interesting!  ;-)
>
> -michael

Thanks for all your help on this one guys,

I downloaded the S-C Macro Assembler and I'm having good success so far, 
after reading through most of the manual.

I've downloaded various other assembly tutorials and skimmed over them, 
but what I appear to be lacking is the actual Apple hooks - the 
locations in memory that I should be using to get the speaker to 
operate, or text to appear on the screen, for graphics to be used etc. I 
can't seem to find anything that says - these are the addresses of the 
hooks (and even better, this is how you would use them).

Anybody know where Apple II hooks are listed? I've found a few lists of 
what look like hooks but they are all for PEEK and POKE, so not much use 
to me in an assembler.

In the meantime, if I don't hear from any of you before the time, have a 
great holiday season whatever your culture/religious stance is.

Thanks in advance,


Alistair Ross
20-NOV-2004