(HP71B) Speed experience with Video (EMU71 and Video80 screen)

[Sylvain Cote]

(11-09-2023 10:22 AM)floppy Wrote:  DISPLAY IS DISPLAY under Basic prompt activated the screen video80.

Not correct, use DISPLAY IS * before running the program.

The external display interface does not need to be activated, the program send the strings to the external display interface directly with SEND.
904 SEND UNT UNL LISTEN A MTA DATA B$ UNT UNL

(11-09-2023 10:22 AM)floppy Wrote:  I will have to look at why (its out at PRINTER from ILPER but not readable, and VIDEO80 as line output, and on the EMU71 screen).

The program assume that the 92198 video interface/simulator is at address 1, if not, reorganize your loop so it is.

Alternatively, you can change the target address by modifying the A variable content.
10 OPTION BASE 0 @ DELAY 0,0 @ A=1

While we are at it, add the following line to the program.
15 DISPLAY IS *