INMC 80 News


September 1980 – January 1981, Issue 2

Page 6 of 59

D.J.Software ?

In the last issue of INMC8O News there is a very interesting article about converting Zeap 1.0 to Nas-Sys operation. I would like to obtain a copy of the patch tape mentioned in this article, but I cannot find any other reference to DJ Software who

supply it. Please can anyone give me their address?

J.B. HAWKES Aylesbury

Ed. – Sorry, we don’t know. Any offers ?

Heaps of Praise

The last issue (INMC 80-1) of the newsletter exceeded all expectations (including the one that it might not come at all !). Personally, I would not complain if the subscription was increased, as it represents such good value. "Piranha" is worth the annual subscription alone. Come to that, so is the modification to set the WNascom 2 cassette interface running at 2400 Baud! (Eat your hearts out T**dy, P*t etc.).

Thank you. Graham Smith Stockport.

Plotting Mods.

Dear INMC80,

With reference to INMC 80 Iss.1, may I suggest the following changes to M.Taylor’s plotting routine. In general it is convenient to have the origin on the bottom left rand corner. Also a MOVE not LINE command may be desired.

The following changes are proposed:

65507 B=ABS(B-44)

65508 IF T#1 THEN X1=A:Y1=*B:RETURN

65509 IF T=1 THEN X2=A:Y2=B

65510 IF Xi#X2 AND Y1=Y2 THEN SET(X2,Y2) :RETURN

65516 SET(X+X1,Y):NEXT:X1=X2:Y1#Y2:RETURN

65519 SET(X,Y+Y1) :NEXT:X1=X2:Y1=Y2: RETURN

This modification allows the user to move the cursor (or pointer) across the screen and draw lines from any two points. The following variables are used:

A – X-coordinate (horizontal)

B – Y-coordinate (vertical)

T – (=1 Move to coordinate, =2 Line to coordinate) <First command must be a move>

This is an OCR’d version of the scanned page and likely contains recognition errors.

Page 6 of 59