[cctalk] Re: Signetics N8220B ??

2023-08-28 Thread Veit, Holger via cctalk
Maybe 8x2 content addressable memory? See https://bitsavers.informatik.uni-stuttgart.de/components/signetics/_dataBooks/1972_Signetics_Full_Line.pdf, page 4-3 -- Holger Von: Holm Tiffe via cctalk Gesendet: Montag, 28. August 2023 15:24 An:

[cctalk] Re: FOSBIC Compiler

2023-07-07 Thread Veit, Holger via cctalk
Von: Chuck Guzis via cctalk > On 7/7/23 00:43, Veit, Holger via cctalk wrote: >> Hi all, >> maybe someone here is interested in the FOSBIC (FORTRAN Simulated BASIC >> Interpretive Compiler) system. >> >> Background: This

[cctalk] FOSBIC Compiler

2023-07-07 Thread Veit, Holger via cctalk
Hi all, maybe someone here is interested in the FOSBIC (FORTRAN Simulated BASIC Interpretive Compiler) system. Background: This was developed, oder rather ported from UWBIC (University of Washington, Prog. W.H. Sharpe) in the mid 70s, by Prof Weber et al. at the German University of Gießen,

[cctalk] Did Intel's Insite User Program Library survive?

2023-05-11 Thread Veit, Holger via cctalk
Hi all, The PDF at https://www.bitsavers.org/pdf/intel/insite/1983_Insite_Users_Program_Library_Catalog.pdf lists various old user submitted software which could have been ordered from Intel those days. Is there anything of that archived and downloadable somewhere? Regards Holger

Re: For those with 6809 experience

2020-03-03 Thread Veit, Holger via cctalk
Am 01.03.2020 um 00:42 schrieb Jim Brain via cctalk: Looking at the datasheet for the 6809 (specifically, the 6809E that needs incoming quadrature clock), I read that !HALT can be asserted 200nS (for 1MHz part) before falling Q and the CPU will finish the existing instruction and then go into

Re: Tap, tap, tap, is this working???

2019-12-16 Thread Veit, Holger via cctalk
Am 14.12.2019 um 18:58 schrieb crufta cat via cctech: Signed up this new account exclusively for CCtech and CCchat. Hopefully its working. Why do this? I had to shut off the other subscription for spam reasons. Allison How did you manage to subscribe? I have been trying to change my

Newcastle Connection Sources?

2018-09-06 Thread Veit, Holger via cctalk
Hi, for some research on ancient Unix, I am interesting in finding the source code (tape, etc.) of the so-called "Newcastle connection", aka "UNIXes of the World Unite!" . See, for instance, https://pdfs.semanticscholar.org/13f8/6c18fa780031d76b80f359d6670f9f3debdc.pdf or

Re: XT/370 microcode

2018-03-15 Thread Veit, Holger via cctalk
You might look up Nick Tredennick's book "Microprocessor Logic Design: The Flowchart Method" which is sold at Amazon for an obscene price - but maybe some university library has a copy. It's focus is on a methodology for designing microcode, and it uses the design of the single chip 370 to

Re: Ideas for a simple, but somewhat extendable computer bus

2017-11-20 Thread Veit, Holger via cctalk
Am 19.11.2017 um 16:08 schrieb emanuel stiebler via cctalk: On 2017-11-18 23:48, Jim Brain wrote: > Looking at the schematic for the ECB, I cannot find any description of > the signals BAI, BAO, IEI, and IEO.  Can anyone shed some light on the > function of these signals? Here again: