Feature suggestion -- expanded pointer addressing

[Controls Guy]

Expansion of free form expressions as indices has been discussed a few times, but I know it's a big deal.

I realized that many times when I'm using a MATH  box to get free expressions, it's only to use something other than Vxx + offset as an index, but not a full on complex expression.

Would it be an easier intermediate  step to allow other types of memory in addition to V?  So for example, MHR + offset would be legal in compares, contacts, etc?

[Controls Guy]

Or possibly, if explicitly cast as unsigned like MHRxx:UW

[franji1]

Expansion of free form expressions as indices has been discussed a few times, but I know it's a big deal.

I realized that many times when I'm using a MATH  box to get free expressions, it's only to use something other than Vxx + offset as an index, but not a full on complex expression.

Would it be an easier intermediate  step to allow other types of memory in addition to V?  So for example, MHR + offset would be legal in compares, contacts, etc?

We've kicked around an "Expression" contact - which I think would address your need.  Basically, if the result of the expression is non-zero, the contact is true.  Hence, you would not even need to use a relational operator in it, you could just do something like

Code: [Select]

D[SQRT(R27) + 42 - T0.Acc] & (0x0001 << (V99 - 1))
----------------------] E [-----------------------

[Controls Guy]

Yes, that would definitely be cool.    Given the option I'd take the expansion of simple pointers but with elimination of the V restriction instead though.

The other day I did

Code: [Select]

STR ST1
MATH DST511 "MC2532" "Y[MHR12]"
where with the thing I'm asking for I'd have been able to do

STR MC2532 OUT Y[MHR12]

BUT.....if you have a higher priority on the expression contact, I'll definitely take it!   

[BobO]

The V dependency is structural. The only way around it is expressions.

[Controls Guy]

The V dependency is structural. The only way around it is expressions.

OK, got it.   Thanks!