Greg,I did some similar with my Ohio Scientific C1P some 30 years ago, because I needed to modify the interpreter to understand a Spanish translation of Basic for an educational project. It was fun but takes a long time. Now I was trying to locate somebody who used the machine on its time and that could remember the info.
Best regards, Ignacio El 21/03/2011 4:37, Greg Broburg wrote:
Any chance you have access to the operating code? Maybe 2716s or 2732s ?? Take the bare binary code and convert it to ASCII. With an ASCII text version of the code and a 6802 program manual all that it takes is some perseverence to successfully reverse engineer the little devil into some few hundreds of lines of code. Been there done that. Fascinating to see how tight those early writers could pack a working idea when 16k ROMs were 10 bucks a piece. I call em midnight cookies and milk projects. A few lines at a time will eventually turn into a flood. Breakthroughs come when you figure out the definitions of the RAM locations and the write locations for data output. Real luck would be to find a 6802 reverse compiler that would work. That can speed it up a bunch. Greg On 3/20/2011 7:58 PM, EB4APL wrote:Alan,This Basic has not the reserved word USING, and by the context I'm pretty sure that STYLE sets the format for subsequent PRINT's until changed. No luck playing with commas, brackets and other punctuation so far.About Chuck's snippet, there is a pity that it don't make use of STYLE. By the way, probably the controller was a previous model, the SD-3520, which has the same look but doesn't include a UV light eraser for the EPROM program cartridges. (And yes, I had reverse engineered and built a cartridge without any sample or info on them, just deducing its existence from the presence of a Centronics like connector on the top, the UV eraser and the commands PROG ROM, READ ROM and CART INFO).The SD-3520 also uses a previous version of Basic with some differences, for example it seems that the BUS OUT command has been replaced by BUS PRINT.I have to repeat my tanks to all who had sent me on the list or directly their help. And to the ones who wonder why I'm taking so much effort for resurrecting this device I can respond something that I heard some 30 years ago when some Nuts began to build home computers: they are as useful as a golf clubs set, they are fun!Best regards, Ignacio EB4APL El 21/03/2011 1:18, Chuck Harris wrote:I found a little snippet for the SD-3250 in a synthesizer manual: 1) BUS CLR Return # Prepare controller for Bus operation2) BUS REM Return # Clear the bus and command 1702 to operate3) BUS OUT GO256540 Return # Set frequency to 25.654 MHz. 4) BUS OUT GO256000 or C000 Return # Change frequency to 25.6MHz, 2 methods 5) BUS OUT L0555 or L3355 Return # set level to -25.5 dBm, 2 methods 6) BUS OUT MO Return # Select AM mode 7) BUS IN A Return Print A Return # Check operating statusComments were added by me, and there is no indication that "#" is a validcomment indicator. So, basically, it looks a bit cruder than even BASIC. -Chuck Harris Alan Melia wrote:the problem is trying to guess the syntax....I was thinking of somethings like.....Set Style ##.### // or may be just Style ##.### try this "##.###" aswell. Print using style, a,b,cIt may be possible to define a number of styles, then it might be......style 1; ##.### style 2; #####.# print using 1; a, b: print using 2; c Once again try the ### in inverted commas.I seem to recollect a similar syntax somewhere but I dont recognise thereserved word STYLE either you can obviously play games with the commas,colons and semi-colons to see what works. the print statements you havediscovered will give a lead to that. Wrong synatx on an "immediate" command(at the prompt) should show an error straight away. If you can find onemanual for any programmable instrument from S-D you will probably find an example that will show most of the command syntax. Think of the parsing andwhat chars are needed as delimiters to make this easy for the processor.I cant help there I have no S-D equipment. but there must be some aroundwith manuals :-)) Alan G3NYK ----- Original Message ----- From: "EB4APL"<eb4...@cembreros.jazztel.es> To:<time-nuts@febo.com> Sent: Sunday, March 20, 2011 9:13 PM Subject: Re: [time-nuts] OT Systron-Donner Basic Alan, It doesn't work, neither (####.#), "#####.#" and a lot of other combinations that I already tried. I was able to get the other commands syntax even the non "standardbasic" ones even with several parameters, but this one is very resilientto all my efforts after diving in old Basic, Fortran, Algol, etc. manuals but never found a STYLE statement. I always get ILLEGAL STYLE error and no other cues. Thank you anyway, I appreciate all efforts. Ignacio EB4APL El 20/03/2011 18:12, Alan Melia wrote:Hi Ignacio try the "print like" format with ######.## to define decimal places etc Alan G3NYK ----- Original Message ----- From: "EB4APL"<eb4...@cembreros.jazztel.es> To: "Discussion of precise time and frequency measurement" <time-nuts@febo.com> Sent: Sunday, March 20, 2011 4:41 PM Subject: [time-nuts] OT Systron-Donner Basic This is clearly OT, but maybe somebody in this list can give me some help. Recently I bought an old GPIB controller, a Systron-Donner Busser II model 3522. As my daughter said it looks like technology coming from"Lost", but I want it to learn how to do some basic control of my GPIB instruments before immersing in a more logical solution using a NI cardand a PC.For starting, I made simple programs to record OCXO's drift and agingagainst my Rb and for studying the charge and discharge of batteries. This device is a small 6802 based computer that runs a Basic dialect (Systron-Donner Basic v 2.a) and while the unit came without anydocumentation I was able to reverse engineer its command set and otherinformation.There is only a command that resist all my efforts so far, the command STYLE that seems to be a kind of format facility for the PRINT command. Anybody was exposed in the past to this technology or remember anythingabout a Basic command named STYLE? I can´t find the right syntax for this command. Thanks in advance. Ignacio, EB4APL ___________________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there. _______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there._______________________________________________ time-nuts mailing list -- time-nuts@febo.com To unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nuts and follow the instructions there._______________________________________________ time-nuts mailing list -- time-nuts@febo.comTo unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nutsand follow the instructions there._______________________________________________ time-nuts mailing list -- time-nuts@febo.comTo unsubscribe, go to https://www.febo.com/cgi-bin/mailman/listinfo/time-nutsand follow the instructions there.
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