Search found 17 matches

by Rick Cortese
Sat Dec 19, 2009 3:26 am
Forum: Programming
Topic: Sometimes I have to explain myself
Replies: 15
Views: 6275

Please, let's refrain from taking offense, as well as from insulting each other.

I wonder if the technical and historical point here is the difference between machines with memory-mapped i/o and machines with a separate i/o space? C's pointers would give complete access to the former type of ...
by Rick Cortese
Fri Dec 18, 2009 9:12 pm
Forum: Programming
Topic: Sometimes I have to explain myself
Replies: 15
Views: 6275

Re: Sometimes I have to explain myself

The example I posted where people seriously consider it as a viable alternative to a simple file copy tells me you must have been living under a rock for the last 20 years.

Personal insults won't earn you a lot of respect on this forum, and may get you kicked off. Be careful.

If you don't know ...
by Rick Cortese
Fri Dec 18, 2009 8:19 am
Forum: Programming
Topic: Sometimes I have to explain myself
Replies: 15
Views: 6275

Re: Sometimes I have to explain myself

This post is loaded with so many factual errors about C that I feel compelled to respond.


Ah yes, you are the same guy who jumped in when I responded to Garth's humorous comment about Vogons and Obfuscated code that things weren't going well to tell me I was off base?

The example I posted where ...
by Rick Cortese
Fri Dec 18, 2009 1:32 am
Forum: Programming
Topic: Sometimes I have to explain myself
Replies: 15
Views: 6275

Sometimes I have to explain myself

I think I have been on both sides of cc65 i.e. giving credit where credit is due and lamenting the state of the art with respect to C programming.

I'm not bashing the cc65 crew as the would be inappropriate from a programming standpoint. They are very talented and well versed beyond my ability in ...
by Rick Cortese
Tue Dec 15, 2009 8:52 pm
Forum: Hardware
Topic: Home computer construction with SMT parts and PLCCs
Replies: 40
Views: 20336

I just picked up one of these boards because Fry's had them.
http://www.schmartboard.com/index.asp?page=products_so

Kind of pricey IMHO but if it works out I will be able to mount 2 chips, class D audio amplifiers ti TPA3120, on one board. Picked up some snap headers too but I haven't decided the ...
by Rick Cortese
Sun Dec 13, 2009 2:28 am
Forum: Forth
Topic: 6502 Forth with hardware accelerator
Replies: 21
Views: 21679

Odd but I think I like the 65C02 with your extended addressing better then a 65C816.

Rick
by Rick Cortese
Wed Dec 09, 2009 12:31 am
Forum: Forth
Topic: Ranting about development tools -- read it if you dare.
Replies: 4
Views: 5307

hehe, Douglas Adams humor.

After a career in chemistry I decided in 1988 or 89 to take night C class at a local JC to round me out a bit. Before the teacher started instruction in the language he gave a lecture on form before function. It went something like:

Don't mix code and comments
Use ...
by Rick Cortese
Sat Dec 05, 2009 8:40 pm
Forum: General Discussions
Topic: A GCC backend for the 6502?
Replies: 26
Views: 14520

Wouldn't it be too hard to implement these changes and maintain compatibilty with existing platforms? I mean except for a few bytes here and there platforms like the Atari and C64 seemed like they were designed with all of page zero belonging to the OS.

I mean even if you have conditional ...
by Rick Cortese
Sat Dec 05, 2009 8:22 pm
Forum: Programming
Topic: The COMFY 6502 Compiler
Replies: 6
Views: 5382

I haven't put to much thought into it but most of my dream list for a high level 6502 language would be

1: Worlds greatest editor of course. Things like multiple windows that you could compile and run independantly with cut and paste between windows.

2 Syntax checking w/o generating code for when ...
by Rick Cortese
Fri Nov 27, 2009 6:43 pm
Forum: Programming
Topic: The COMFY 6502 Compiler
Replies: 6
Views: 5382

Mostly guessing but Clinton Parker worked with Baker in some capacity. Around 1983 Mr. Parker released the Action! programming language for the Atari 8 bit. I Googled to find some of his early work and found
http://home.pipeline.com/~hbaker1/Micro-SPL.txt

This was clearly the what spawned the ...
by Rick Cortese
Tue Nov 24, 2009 6:19 am
Forum: General Discussions
Topic: Off Topic: NPN Transistor Amplifier Configuration Help
Replies: 20
Views: 8357

Yes, I am that kind 'special' to the point where they wanted me to ride the short bus to school. Problem is I can't remember things like my phone number or year the Treaty of Trent was signed. Circuit looked familiar with a Forrest Mims article or two I read ~40 years ago so I googled with his name ...
by Rick Cortese
Mon Nov 23, 2009 6:18 pm
Forum: General Discussions
Topic: A GCC backend for the 6502?
Replies: 26
Views: 14520

Re: A GCC backend for the 6502?

Hi all,

While a C compiler for the 6502 already exists (cc65), the project seems to be abandoned, and its code generation suffers from a lack of middle-end optimizations. It would be rather interesting to see what kind of code GCC can generate.

Any takers?

Development on several platforms seems ...
by Rick Cortese
Sun Nov 22, 2009 10:31 pm
Forum: General Discussions
Topic: First 6502 project
Replies: 33
Views: 11470

IIF you mostly want to keep it period correct w/o going to the high priced solutions, go with an EPROM for display decoder. It will work with FND500's<?> and you just have to program the bit pattern. You just wire the data bit into the 7 segments i.e. address $00 of the EPROM outputs highs for ...
by Rick Cortese
Wed Nov 18, 2009 3:47 am
Forum: General Discussions
Topic: First 6502 project
Replies: 33
Views: 11470

1802, jeez. I remember looking .at the spec sheets of that CPU in my dad's basement. He had a few, along with boxes of MOS 6502's. The one's that failed testing. Looked interesting, but I think the address bus was multiplexed or something. Flashback, sorry...

It was one of those 'you had to be ...
by Rick Cortese
Tue Nov 17, 2009 7:14 pm
Forum: General Discussions
Topic: First 6502 project
Replies: 33
Views: 11470

Do you have one of these left over from your Atari days?

http://cgi.ebay.com/ATARI-CX85-NUMERIC-KEYPAD-BOARD-EXCELLENT-CONDITION_W0QQitemZ300338033185QQcmdZViewItem?rvr_id=&itemid=300338033185

Maybe just me but I would go for either something retro like CX85 or an ugly hack. The CX85 is well ...