Re: [cc65] ca65 - addressing .STRUCT

On Sat, Mar 02, 2013 at 01:14:01PM +0100, silverdr@wfmh.org.pl wrote:
> I have a table stored in a .STRUCT, where I want to access the first byte of
> this table but don't want to reference the first member because the order of
> the members is likely to change.
>
> Can a .STRUCT base address somehow be used (I get undefined symbol error
> when trying) without referencing members?
 
A struct is a type and doesn't have an address. You can place a struct
somewhere in memory and access the memory location instead:

    .struct Coordinate
        X   .word
        Y   .word
    .endstruct

Pos:    .tag    Coordinate
        ...
        lda     Pos
        ldx     Pos+1

Regards


        Uz


-- 
Ullrich von Bassewitz                                  uz@musoftware.de
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