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Ed in SoDak

Member Since 22 Mar 2014
OFFLINE Last Active Feb 15 2019 10:36 PM

Posts I've Made

In Topic: Which BASIC?

Fri Feb 15, 2019 12:23 AM

For XB, I started with TI's then later upgraded to SXB, Super Extended BASIC. The more advanced editing options really help with programming. When editing a long line, you can jump the cursor up or down a row, or to the beginning or end. The RENUM is more flexible where portions of code can be moved elsewhere without disturbing the rest of the program. There's other features as well.

 

Other flavors of XB no doubt have similar improvements. RXB is very full-featured beyond SXB, but I'm not sure about its availability on a cart or if it can be ported to one for use on the iron.

 

Speed of execution depends a bit on the programming techniques. Short E/A routines can be developed to perform some things much faster but remain in the XB environment. For raw speed outside of writing it all in assembly, Harry's compiler is the way to go.

-Ed


In Topic: Star Trek: The Next Generation

Mon Feb 4, 2019 9:05 PM

http://macintoshgard...next-generation


In Topic: How wide is your TI-99/4A setup?

Mon Feb 4, 2019 8:32 PM

It seems odd nobody at TI pointed out the Circus Train being built before it left the station. The successor PEB and Firehose made a huge and unwieldy combo itself.

 

Then again, compared to the TI-990 system, maybe they thought they were "thinking small." :)

 

But I guess you could take the skyscraper approach some of the ZX81/Timex expansions chose. Or just keep sticking additions off the Back Porch. :lol: Some companies just sold boards and let the user figure out what to do with 'em. Don't forget the "real" keyboard upgrades

-Ed


In Topic: RXB and my modded TI problem.

Sat Feb 2, 2019 4:53 PM

How warm does it run? Mine used to be left running a BBS program for extended periods and sometimes crashed. It behaved much better when I placed a small 12-volt computer fan over the cooling slots behind the cartridge port. I powered the fan with its own wallwart robbed from my hoard. I chose a 3-volt wart, as the fan is much quieter and still cools adequately. I just set it in place during long sessions. In just a couple minutes the "coffee warmer" feels cool to the touch.

 

RXB might be a resource hog performing more chip-level accesses. That, along with the load of your add-on board(s) = more heat. The RXB cart itself might be more temp-sensitive than other "standard" carts you've tried.

 

High line voltage might be an issue at your location. That makes the regulators in the console shed more heat. A flaky cart connection wastes power by voltage drop which again dissipates as heat and contributes to bit errors. One reason why cleaning the port helps!

-Ed


In Topic: Detecting Extended BASICs

Sat Feb 2, 2019 1:00 PM

Beery wrote: " ...Perhaps I am killing my own idea, but was there a mod somewhere that holding the space bar down, bypassed an attempt to load DSK1.LOAD?"

 

SXB has the spacebar LOAD bypass. TIXB does not. I didn't test other XB variants.

-Ed