[Oberon] Re (2): The Out module.

[Chris Burrows]

> -----Original Message-----
> From: Oberon [mailto:oberon-bounces at lists.inf.ethz.ch] On Behalf Of
> peter at easthope.ca
> Sent: Tuesday, 15 January 2019 2:51 PM
> To: oberon at lists.inf.ethz.ch
> Subject: [Oberon] Re (2): The Out module.
> 
> 
> > Be aware that in Oberon-07 variables are now exported as read-only.
> 
> Thanks.  Forgot about that.  Fixed in V5 using procedure variables.
> https://en.wikibooks.org/wiki/Oberon/V5
> Seems devious but it compiles.  Out.Open works but haven't tested
> further.  I'm interested to read any comments about the use of
> procedure variables.
> 

It does not look 'as simple as possible' to me ;-)

The extra complexity might be justified if there was a noticeable difference
in code size or execution time but that is not the case.

If my calculations are correct the number of instructions executed by Append
is identical for both the procedure variables version and the simpler
boolean variable version. 

However, the total code size of the procedure variable version is 15% larger
than the boolean variable version.

Regards,
Chris

Chris Burrows
CFB Software
http://www.astrobe.com/RISC5