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Forum Index : Microcontroller and PC projects : Micromite MMBasic V5.3 Beta 10

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JohnS
Guru

Joined: 18/11/2011
Location: United Kingdom
Posts: 4036

Posted: 02:23pm 15 Jan 2017

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robert.rozee said i believe the below code should fix the bug in VAL():

// Returns the numerical value of the ?string$?.
// n = VAL( string$ )
void fun_val(void) {
char *p, *q, *tl, *td;
...snip...
case 'H': iret = strtoll(++p, &tl, 16); break;
// note that we MUST supply a variable for the
// third arg of strol() due to a bug in C32 2.1
...
}

That's a curious comment (apart from the typo) - you always need to supply the 3rd arg but what is that about a variable? Not that you specify one!

JohnEdited by JohnS 2017-01-17

robert.rozee
Guru

Joined: 31/12/2012
Location: New Zealand
Posts: 2430

Posted: 03:39pm 15 Jan 2017

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those are existing comments from geoff's source, not mine. no doubt the code has been reworked a number of times over the years, so the comments may not even be relevant any more.

cheers,
rob :-)

Cremo
Newbie

Joined: 21/07/2015
Location: Italy
Posts: 36

Posted: 06:30am 31 Jan 2017

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Hello,
I would like to show some test of harmonic distortion of the instruction "TONE".
I did the tests using a SR770 FFT Spectrum Analyzer.

It is interesting that the distortion is almost proportional to frequency.

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