That design will give you trouble. It will be confusing to understand and maintain.

I recommend passing the frame data as arguments to the functions: 

my (%frame_lookup_by) = (
        21 => {
            desc => "S/W Status",
            value => sub { $_[0]*256 + $_[1]} ,        
        }, 
        33 => {
            desc => "HK Subcom",
            value => sub { $_[1] % 16 },   #modulo 16 of w12
        },
        117 => {
            desc => "General Status",
            value => sub {$_[0]*256 + $_[1] },        
        },
        129 => {
            desc => "Sensor Status",
            value => sub { $_[0]*256 + $_[1] },        
        },
    );

[download]
With that you can supply the argument that's in the current scope like so: 
my $result = $ref_frame_lookup_by{33}->{value}->(@minor_frame_data);

[download]

After Compline,
Zaxo

In reply to Re: Updating hash of subroutines by Zaxo
in thread Updating hash of subroutines by Anonymous Monk

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