INMC 80 News

  

June/July/August 1980, Issue 1











Page 7 of 48











Some "little known facts":

If you have to write a long DATA table or whatever consisting of very similar lines, you can type in the first line and press ENTER, then, using the cursor control keys, overwrite the line number with the number of the next line required and press ENTER, etc, etc. A LIST command wilt then show your series of identical lines for editing as necessary.

When entering a line of the full 48 characters the act of typing the final character places the cursor on the following line and pressing ENTER has no effect. !t is only necessary, however, to place the cursor back up on the line – at any point – for a ENTER to enter the whole line.

1 have added a Bits & P.C.’s hex pad to my Nascom 2, which works well for hex and integers but lacks a decimal point. The eventual solution must be a hardware fix, but my interim solution is a short series of Nas-Sys instructions which copy out the keyboard table from ROM into that portion of RAM not accessed by BASIC, switch the values for mu and "FE" and gives Nas-Sys the address of the new table. Full credit goes to the writer of Nas-Sys for leaving the door open!

At switch-on:

C O59E 0C80 0060 (Copy out table) M OCAE

43 / OCC6

21 / OC6F (Switch values) 80 OC.

After a Reset:

M OC6F 80 OC

Yours faithfully, D. Walker.

Windsor.

PIO HELP NEEDED

Dear INMC,

Could you include some programming hints on the use of the P!0 on Nascom 1 in some future issue ? One useful example would be a traffic lights program driving a LED display via the P!lO. There is a lot of


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











Page 7 of 48