Search found 36 matches: ECM*

Searched query: ecm*

by BigDumbDinosaur
Thu Oct 09, 2025 4:22 am
Forum: Newbies
Topic: Glue questions
Replies: 48
Views: 4644

Re: Glue questions

The ILI9341 has an 8-bit interface, and can be placed on the 6502 bus...To get around this problem, you can add an additional 74xx245 that you can then control the OE# pin of.
I did look into the 8-bit interface, but my thoughts were to use this display and the PS/2 keyboard to work as a "serial ...
by BigDumbDinosaur
Wed Nov 06, 2024 8:05 pm
Forum: Emulation and Simulation
Topic: Supermon 816 and Kowalski Simulator 1.4.0.6
Replies: 3
Views: 2485

Re: Supermon 816 and Kowalski Simulator 1.4.0.6

As part of further testing of my simulator on STM32, I compiled from the source code SuperMon 816. The program starts and does not suspend, unfortunately some functions, e.g. A or M, do not work correctly.
So I decided to start the Supermon under the control of the Kowalski simulator and it turns ...
by BigDumbDinosaur
Thu Oct 24, 2024 3:54 pm
Forum: General Discussions
Topic: Character Encodings (WAS: Crenshaw - Let's Build a Compiler)
Replies: 8
Views: 1592

Re: Character Encodings (WAS: Crenshaw - Let's Build a Compi

The VT/ANSI/ECMA48 mess is just that: a big, friggin’, designed-by-committee, implemented-by-a-drunken-monkey mess. When WYSE developed their terminals, starting with the WY50 (and most famously, the WY60), they studiously avoided all that CSI... mumbo-jumbo and adopted a pseudo-binary control ...
by Yuri
Thu Oct 17, 2024 4:15 am
Forum: General Discussions
Topic: Character Encodings (WAS: Crenshaw - Let's Build a Compiler)
Replies: 8
Views: 1592

Character Encodings (WAS: Crenshaw - Let's Build a Compiler)

A continuation from: Crenshaw - Let's Build a Compiler

To be honest, I don't think I ever generally worried too much about a few spaces vs. a tab even when I was working on my 386 and storing stuff on floppy. Considering that files all are going to take a multiple of 512byte blocks I don't think ...
by BigDumbDinosaur
Thu Oct 17, 2024 1:31 am
Forum: Programming
Topic: Crenshaw - Let's Build a Compiler
Replies: 102
Views: 24069

Re: Crenshaw - Let's Build a Compiler

To be honest, I don't think I ever generally worried too much about a few spaces vs. a tab even when I was working on my 386 and storing stuff on floppy. Considering that files all are going to take a multiple of 512byte blocks I don't think i ever noticed the difference in disk usage.
I started ...
by BigDumbDinosaur
Sun Dec 31, 2023 4:34 pm
Forum: Programming
Topic: Text Editor Shifting Mechanics
Replies: 95
Views: 22976

Re: Text Editor Shifting Mechanics

The question then is what codes? Go all-out and go for ANSI/vt100 or something else?
I am personally biased against ANSI/VT100/VT52 control sequences...There are many other popular terminal control sequence sets such as ADM3A, Televideo 950, IBM 3101.
I have no love for the ANSI/VT/ECMA48 mish ...
by wayfarer
Tue May 23, 2023 6:27 pm
Forum: Programming
Topic: Let's Talk About Math Baby
Replies: 37
Views: 15511

Re: Let's Talk About Math Baby

NZQRC
Integer, Signed, Rational, High-Precision 'point' numbers (or Scientific Notation (OR|| Symbolic Real Numbers)), Complex Numbers
It may help to look at the number system classifications on Wikipedia. You can, of course, use terms however you like, but using the standard terms in the standard ...
by Paganini
Thu Dec 29, 2022 9:06 pm
Forum: Nostalgia
Topic: Favorite Data Books
Replies: 6
Views: 5995

Re: Favorite Data Books

Since I started this thread, I did track down a few data books, including the TI yellow book you mention. Mine is from 1984; I'd really like to get the 1989 one (I have a PDF copy of it on my desktop), but it is a bit hard to find it seems. I also got the National / Fairchild one that Garth ...
by BigDumbDinosaur
Sun Oct 23, 2022 3:41 am
Forum: Programming
Topic: DOS/65 ROM version 3.02 up and running!
Replies: 39
Views: 6161

Re: DOS/65 ROM version 3.02 up and running!

It seems to work well, although I have not yet figured out how the ANSI function keys work. Part of my project for next week, when I should finish my project's VT-100 driver code. Apparently, ANSI function keys != VT-100 function keys.
ANSI/VT extended key sequences are a bit of a convoluted mess ...
by teamtempest
Wed Sep 21, 2022 3:15 pm
Forum: Programming
Topic: A VERY simple 6502 programming language
Replies: 62
Views: 7221

Re: A VERY simple 6502 programming language

Some key points is that it will only use minimal keywords (IF...THEN, GOTO, PRINT, INPUT, LIST, RUN), all variables are treated as arrays or strings, NO special symbols required, and line numbers for editing. I'm hoping it will fit within a few KB of ROM, and use about 8KB of RAM for variables and ...
by BigDumbDinosaur
Wed Jul 07, 2021 2:22 am
Forum: Hardware
Topic: 74HCS series?
Replies: 2
Views: 1019

Re: 74HCS series?

Unless you need Schmidt trigger inputs I can't see why one would opt for HCS over AHC or HC. Or maybe I'm missing something?
The 74HCS family is targeted at noisy environments, such as machine controllers or automotive ECMs. Take out the Schmitt inputs and you have the 74HC family—essentially the ...
by BigDumbDinosaur
Thu Jun 24, 2021 5:00 am
Forum: General Discussions
Topic: An interesting price for W65C02SXB boards
Replies: 18
Views: 2256

Re: An interesting price for W65C02SXB boards

I wonder if it has anything to do with the chip shortage that has even shut down some of the auto industry.
My friend, who owns the auto repair shop where I keep my locomotive, has mentioned that getting replacement ECMs for cars has been hit-and-miss as of late. Usually he purchases rebuilt ones ...
by Chromatix
Tue May 05, 2020 9:24 am
Forum: Hardware
Topic: About the humble Floppy Disk…
Replies: 48
Views: 9017

Re: About the humble Floppy Disk…

So, I randomly came back to the subject of EFM encoding and decoding. I've now concluded that this is noticeably easier to do in hardware than in software, as long as you take the correct approach - though finding that approach might be less than obvious. In particular a hardware decoder eliminates ...
by BigDumbDinosaur
Wed Apr 29, 2020 1:38 am
Forum: Hardware
Topic: VT-100 CONSOLE FOR HOMEBREW COMPUTERS
Replies: 27
Views: 23142

VT-100 CONSOLE FOR HOMEBREW COMPUTERS

That is actually pretty interesting. And it looks like it wouldn't be too hard to make it understand BBC VDU codes instead of minicomputer rubbish. ;-)
I'm not familiar with the BBC VDU, so I can't opine on ease or difficulty. The process would fundamentally be the same as implementing the WYSE 60 ...
by BigDumbDinosaur
Tue Apr 28, 2020 11:13 pm
Forum: Hardware
Topic: VT-100 CONSOLE FOR HOMEBREW COMPUTERS
Replies: 27
Views: 23142

VT-100 CONSOLE FOR HOMEBREW COMPUTERS

VT-100 CONSOLE FOR HOMEBREW COMPUTERS

Ever since I designed and built POC V1.0, I’ve used a serial-interfaced, "dumb" terminal as the system console. First it was a WYSE 60, then an ADDS 260LFC, and now a WYSE thin client in WYSE 350 emulation mode. These have all worked out well, but I have ...