Classic Computer Magazine Archive COMPUTE! ISSUE 11 / APRIL 1981 / PAGE 174



In our three part series by Hal Chamberlin, "Expanding KIM-Style 6502 Single Board Computers", we neglected to point out that Mr. Chamberlin is Vice President of Research And Development for Micro Technology Unlimited. You may write him at P.O. Box 12106, Raleigh, NC 27605.

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Our February, 1981 issue carried an article by Bruce Land entitled, "A Terminal For 'KAOS' (KIM, Aim, OSI, Sym)". In evaluating the Netronics terminal, Bruce said:

"The Netronics 20 ma current loop is not isolated like the Xitrex, and so may not work well with some devices. It does not work well with all the devices I have tried including KAOS systems." (p. 132, column 2)

At least that's what we printed. What Bruce really wrote was:

"It does work well with all the devices I have tried..."

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"The 25* Apple II Real Time Clock" (February, 1981; page 72, figure 3)

An error in illustration inadvertantly left a tie that "shouldn't bind". Here are both the incorrect and corrected versions:

Figure 3

"Ticker Tape Atari Messages", (February, 1981, page 75)

As you've noticed, there was a problem with the program. Here are the fixes:

  1. The [ ]'s used in the listing are ( )'s. Nobody we talked to had a problem with this, but we thought we'd mention it.
  2. In line 20, B is set equal to a blank; this should be B$.
  3. Add a line 16 that sets Y$ = W$.
  4. Finally, the contents of W$ and Y$ determine your "moving borders"; if you put 20 spaces in W$, you won't see anything. If you put in * alternating with spaces, then you'll see what we mean.

Play around with it, and compose your own borders.

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Program Listings for COMPUTE

Cursor control characters will appear in source listings as shown below:

h = HOME        , h = CLEAR SCREEN

Graphics (i.e. shifted) characters will appear as the unshifted alphanumeric character with an underline. This does not apply to the cursor control characters. The Spinwriter thimble doesn't have a backarrow symbol, so a "˜" is used instead.

The "≠" is used to indicate the beginning of a continuation line. It is also used to indicate the end of a line which ends with a space. This prevents any spaces from being hidden.