(41) JETLOG Program

[Stevetuc]

(05-13-2021 07:13 AM)Ángel Martin Wrote:  

(12-15-2020 06:06 AM)WrongWay Wrote:  This was a program my father wrote, it appears to be a flight planning application. I could use some help deciphering it. It does run. Run size and set to 100 to fully load the program

In line 16 there's a GT0 CF but LBL "CF" is nowhere to be found. Is this a typo??
GTO C doesn't look likely either given where the instruction is: no previous test and no LBL after it.
Would be good if you can double check the listing...

Code:

X=0?
GTO 00
SF 03
GTO CF
FS? 00
GTO 01
LBL 00

It looks like the CF flag is being used for indirection
Ie if CF= 03 GTO CF > GTO LBL 03