Re: 6502 Assembler books

["Laine Houghton" <laine@intergate.com>]

"Alistair Ross" <removemeajross@atxboltdot.net> wrote in message 
news:41c6d676$0$8343$db0fefd9@news.zen.co.uk...
> 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

This would be a good start.


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