how to shrink code

[tenaja]

If minimal code size is the goal, then PBP is a LOT of work.

Reducing gosubs is not always the best rule, unless you are getting rid of the subs that were only added to make the code more "readable". If you can insert a few subroutines to eliminate duplicate code, they are very helpful.

One thing to do is eliminate as many built-in basic commands as possible. For instance, hserout is very inefficient. You can manually load your values into the TXreg and save a lot of space. The ADCIN command is probably even worse.

[Peter1960]

Hi and thanks everyone.

Using a combination of Lookup and assembler

the code is now 3768 !!!! beauty !

I noticed that lookup can reduce code but can also
increase code, so be carefull !

thanks

kind regards

Peter

[sayzer]

...

I noticed that lookup can reduce code but can also
increase code, so be carefull !..

Peter

Peter, it depends on the location of the LookUp statement in your program.

Just do a little experiment by changing its location in the program.

[tenaja]

Peter, it depends on the location of the LookUp statement in your program.

Just do a little experiment by changing its location in the program.

A lot also has to do with how many elements you are looking up. It does not pay off until you are looking up more than just a few... 2-3, and it is a waste; a dozen and it saves a lot.

[mister_e]

I tend to use internal EEPROM for that when at all possible.

If you want how nasty we could shrink it... challenge us a little bit and post it here

Who take he challenge? Darrel? Bruce? Melanie? Alain? Skimask? Anyone?

[skimask]

I tend to use internal EEPROM for that when at all possible.
If you want how nasty we could shrink it... challenge us a little bit and post it here
Who take he challenge? Darrel? Bruce? Melanie? Alain? Skimask? Anyone?

I'm up...but I'm afraid all I'll get is spanked...

[sayzer]

I tend to use internal EEPROM for that when at all possible.

If you want how nasty we could shrink it... challenge us a little bit and post it here

Who take he challenge? Darrel? Bruce? Melanie? Alain? Skimask? Anyone?

Steve,

Do you mean a scan routine that will get an input variable, then scan EEPROM and provide an output variable?

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[mister_e]

depending which part of the message you refer. But yeah, when possible i replace LOOKUP by a READ ... depending what also on-board i may use an external EEPROM. I don't have any conventions. Since awhile all my projects are different. I just try to find the best compromise to reduce cost, pcb space etc etc.

Code shrinking is a kind of funny challenge... Peter says he already shrink it and maybe he's still working on, i don't know. What i suggest to him, is to post his whole code here to see how much we could reduce it.

Not a must, be as i said, that's fun. I know Darrel like that kind of thing