Compose or fashion a port

[EA7-JFV]

Hello,

Itś possible to compose a eight bit port (Imaginary name port) from different pin ports?

Like this:

Port "ACME" = PortB.0, PortB.1, PortC.3, PortD.5, PortD.8, PortB.3, PortC.1, PortD.2

Then, by example, PortACME.6 = PortB.1, or PortACME.4 = PortD.5...

Then, if I put

PortACME = 0b'00101100, "it automatically" writes 0's in PortB.0, PortB.1, PortD.5, PortB.3 and PortC.1 and 1's in PortC.3, PortD.8 and PortB.3?

Thanks

[Anobium]

Is the same question as a previous post ? :-)

You have two options - create a mask for each port used within the ACME variable, or, write a sub to set.

The first method is efficient and the second method is very inefficient.

You may do better with an external post expander and wire that up.

Evan

**Mask **

    #DEFINE PORTBMASK 0x11000000
    // PortB.0 = Acme.7
    // PortB.1 = Acme.6
    PortB = ( PortB and PORTBMASK ) or ( Acme and NOT PORTBMASK )

    .. same for all the other ports - create a mask and set. 

BitSet

Sub SetAcmeVar1
    // This is VERY VERY inefficient
    PortB.0 = Acme.7
    PortB.1 = Acme.6
    PortC.3 = Acme.5
    PortD.5 = Acme.4
    PortD.7 = Acme.3
    PortC.1 = Acme.1
    PortD.2 = Acme.0
End Sub

[EA7-JFV]

It's alike a previous question, yes, but in this case I need a byte from more than two ports...

I had been thinking for that in #define... but I had used it always for pins alias, not for masks...

Thanks by your response, I see your code very utility

Where can i find more uses of #define? In chm file it's... light, superficial

[Anobium]

Great point re Help.

Help me update the Help page. Ask any questions so I can improve.

Evan

[EA7-JFV]

Oh! It has a great honour for me if I'm capable to achieve help this project.

Thanks,

[Anobium]

Yes, please help us help others in the future.

[Anobium]

Here is the master Help file. https://github.com/GreatCowBASIC/Help/blob/main/source/define.adoc

Use this has the master file for your comments.

This master file will be used to create the Help once we have finalised any more changes.