(Free42) tips & tricks: local flags

[Thomas Okken]

(07-25-2020 09:22 PM)rprosperi Wrote:  Thanks Thomas, the ability to debug with flag-21 set either way is a reasonable premise, but it seems a stretch...

I guess it's not a tremendously strong argument, but given that there are three ways to control print-out already, messing with that functionality doesn't seem worth it to me.

(07-25-2020 09:22 PM)rprosperi Wrote:  [scroll-scroll-scroll...flip-flip...scroll-scroll] Minutes later..

Some relevant and interesting notes:

The 82160A HP-IL module manual states that the 'TRACE with stack' option is not available in the 82162A printer. I only recall seeing this on a ThinkJet, guess that's why. (HP probably concluded supporting this would kill the 82162A batteries pretty quickly)

Not to mention use reams of expensive thermal paper, and slow down program execution a lot! Trace-with-stack really seems more useful when it's printing to a scrollable window or a file.

(07-25-2020 09:22 PM)rprosperi Wrote:  The 82242A manual does not mention 'TRACE with stack' option at all, and it says clearly that 'TRACE mode' is selected when flag-15 is set, with flag-16 either set or cleared.

It also states: "When flag 21 is clear, execution of printing functions in a program is suppressed." It also notes that flag-21 does not affect print functions executed from the keyboard, only print functions contained in a program.

Yep, that's all consistent between the 41 with 82143A and 42S with 82240.