cosmacelf at Yahoo! Groups

V0.33 of 1802 C compiler with ElfOs function call support ready

ted_rossin — Tue, 03 Nov 2009 17:57:18 GMT

I added switch statement, break and continue keyword support as well as the exit function. I also added support for ElfOs function calls without a ton of

Re: 1802 Emulator V1.06

ted_rossin — Mon, 02 Nov 2009 22:54:23 GMT

Thanks Marcel. Folks need to remove the . at the end of: http://www.comxclub.hobby-site.com/COMX-Club_Emulator.htm or use the above link instead.

1802 Emulator V1.06

Marcel — Sun, 01 Nov 2009 21:18:30 GMT

Hi All, I just release a new version of my emulator, downloadable either from: http://www.1802emulator.hobby-site.com/index.html or

Re: Memory Addressing

Neil Breeden — Fri, 30 Oct 2009 03:41:23 GMT

There are 10 types of people in the world, those that understand binary and those that don't. -Neil From: cosmacelf@yahoogroups.com

Re: Memory Addressing

J.C. Wren — Fri, 30 Oct 2009 03:07:16 GMT

I'm sort of familiar with your problem. I have to struggle to "think decimal"... --jc ... [Non-text portions of this message have been removed]

Re: Memory Addressing

brianties — Fri, 30 Oct 2009 01:46:58 GMT

OK, I get it. The light bulb finally went on in my head. I have to remember "think binary" Thank you both for your help.

Re: Memory Addressing

randy129 — Thu, 29 Oct 2009 22:44:53 GMT

... No, it's the pin numbers that are swapped in Fig. 1, not the labels. A10 connects to the /CE of the 2101's, enabling them when A10 is 0. /A10 connects to

Re: ElfOs argument passing rules question

rileym65 — Thu, 29 Oct 2009 18:47:45 GMT

... If the program was started from the command line, then the entire command is in the keyboard input buffer, located at 0380h (all versions of Elf/OS have

Re: Memory Addressing

brianties — Thu, 29 Oct 2009 16:47:29 GMT

Thank you, this helps quite a bit. Pointing out that mistake saved me a lot of grief! So A10 bar is what gets connected to the original 2101 memory?

Re: David Sarnoff museum and archive split but preserved

awasson2001 — Thu, 29 Oct 2009 16:42:07 GMT

Yes indeed. They had at least two versions. One is the version shown at the link JC provided. It's a nice little terminal using an 1802. It provides colour

Re: David Sarnoff museum and archive split but preserved

J.C. Wren — Thu, 29 Oct 2009 14:21:09 GMT

http://www.smecc.org/rca_microcomputers.htm Is what you're thinking of, I believe. --jc On Thu, Oct 29, 2009 at 10:07 AM, Charles Richmond < ... [Non-text

Re: Memory Addressing

David G Williams — Thu, 29 Oct 2009 14:14:56 GMT

Hi brianties, In the basic Elf there are only 256 bytes of Memory - thus only 8 address lines are needed to address this much memory. The 1802 uses a

Re: David Sarnoff museum and archive split but preserved

Charles Richmond — Thu, 29 Oct 2009 14:07:45 GMT

... David Sarnoff was a *nasty* business man and made unfair business practices... standard operating procedure at RCA. Sort of the Bill Gates of his day. ...

David Sarnoff museum and archive split but preserved

thinkpast — Thu, 29 Oct 2009 12:59:24 GMT

Most of you know the 1802 was developed by RCA in the early 1970's. You may not know how the former RCA has preserved and exhibited its history. I live in the

ElfOs argument passing rules question

ted_rossin — Tue, 27 Oct 2009 20:31:15 GMT

I'm implementing ElfOs C bindings for some of the simple ElfOs calls. getchar, gets, putchar and puts are working and now I would like to implement the famous