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Tinine
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Joined: 30/03/2016
Location: United Kingdom
Posts: 1646

Posted: 02:35pm 24 Jun 2019

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Well now I remember (RTFM) that it's either DO WHILE:LOOP or DO:LOOP UNTIL but of course I forgot and was scratching my head for a bit. Would it be a good idea to have the interpreter pick-up on this and flag an error message?

My

DO UNTIL Pin(22) = 0 : LOOP

Just sat there looping away.

Board: E100
MM.VER:5.0501

twofingers

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Joined: 02/06/2014
Location: Germany
Posts: 1772

Posted: 05:10pm 24 Jun 2019

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BTW.

DO WHILE:LOOP or DO:LOOP UNTIL
are explained in the manual.
But this also works:

Do:Loop While Inkey$<>Chr$(ENTER)

Michael

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Look on my works, ye Mighty, and despair!‘
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PicFan
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Joined: 18/03/2014
Location: Austria
Posts: 133

Posted: 06:14pm 24 Jun 2019

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Maybe . . .

DO WHILE(PIN(22) = 0)
. . .
. . .
LOOP

Tinine
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Joined: 30/03/2016
Location: United Kingdom
Posts: 1646

Posted: 06:29pm 24 Jun 2019

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PicFan said Maybe . . .

DO WHILE(PIN(22) = 0)
. . .
. . .
LOOP

Oh sure but that would need to be PIN(22) = 1

I used the other option:

DO
.
.
LOOP UNTIL PIN(22) = 0

Geoffg

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Joined: 06/06/2011
Location: Australia
Posts: 3368

Posted: 02:04am 25 Jun 2019

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Tinine said Would it be a good idea to have the interpreter pick-up on this and flag an error message?

This is one of the problems with working in the small memory space of a microcontroller.

There are many, many ways of incorrectly constructing a command and it is impossible to trap them all and still fit in the given flash memory space. Already error checking takes up a lot of space (I guess about 20%) and that is only trapping the obvious errors.

Compilers like C and C++ have the advantage here because they are running on a desktop computer with almost unlimited memory. But then they have other disadvantages as well.

Geoff Graham - http://geoffg.net

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