(Free42) tips & tricks: local flags
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07-25-2020, 08:25 PM
Post: #30
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RE: (Free42) tips & tricks: local flags
(07-25-2020 07:07 PM)rprosperi Wrote: You're right, it ignores flag-21, much to my surprise. I think the idea is that if you don't want TRACE output, you can always use MAN or NORM mode, while TRACE mode should work even if flag 21 is clear. Some programs are designed to work with flag 21 set or clear, and you should be able to debug such programs using TRACE with either setting. Of course there is an assumption that programs will not change PRON/PROFF and MAN/NORM/TRACE modes by themselves. (07-25-2020 06:22 PM)Vincent Weber Wrote:(07-24-2020 09:39 AM)Werner Wrote: BTW Free42 doesn't do a 'trace with stack print' when both flag 15 and 16 are set - I have no idea (and no means to find out) if a 42S does that or not. The flags doc mentions this is a 'HP-IL' printer behaviour, which of course doesn't apply to a 42S.As far as I know, the "TRACE WITH A STACK" mode is not meant for the HP-IL printer, but for the video interface. (07-25-2020 07:07 PM)rprosperi Wrote: Update: Added sample from a genuine 42S. Bob: Thanks! I was under the impression the 'trace with stack print' mode was supported by the 82242, but apparently not. I would be interested to see what it looks like with the video interface, but I guess at the end of the day, it's up to me to decide how to implement that mode in Free42, since compatibility is not a concern and it's just an added convenience for user code debugging. |
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