Byron,
     Could you please translate this into C for me?
Thanks,
rich!

On 9/14/2015 11:14 AM, Byron Jeff wrote:
> Richard,
>
> Your description below screams table. Since it's only 2 bits, the table
> would be 4 entries long:
>
> TableA: ; W is input. Returns table entry in W.
> 	andlw	0x3	; make sure only 2 lowest bits are used
> 	addwf	PC,F	; jump to appropriate table entry
> 	retlw	0x82	; return 1001 in bits 7-6,3-2 if input is 00
> 	retlw	0x04	; return 0010 in bits 7-6,3=3D2 if input is 01
> 	retlw	0x40	; return 0100 in bits 7-6,3=3D2 if input is 10
> 	retlw	0x80	; return 1000 in bits 7-6,3=3D2 if input is 11
>
> Make a similar table for B.
>
> Then all you'd need to do is read the port, clear the output bits, call t=
he
> table routine, OR back in the results, and write the whole mess back to t=
he
> port.
>
> Hope this helps,
>
> BAJ
>
> On Mon, Sep 14, 2015 at 10:31:15AM -0500, Richard R. Pope wrote:
>> Jan-Erik,
>>       I guess my next question is about packing the register. The RA0-1
>> and RB0-1 bits are my inputs. On Port A the output pins are 2-3 and 6-7.
>> On Port B it is 2-5. So if I have two output registers. One called
>> OutputA and the other OutputB. When the input is 0-0 then the output is
>> 1-0-0-1. If the input is 0-1 then the output is 0-0-1-0. If it is 1-0
>> the output is 0-1-0-0 and if it is 1-1 the the output is 1-0-0-0. I
>> guess we should define some constants called Bit# such as Bit0, Bit1,
>> Bit2 and so forth to Bit7. These should be set to 1, 2, 4, 8, and so
>> forth up to 128. We first have to clear the registers to zero with
>> OutputA or B =3D 0; So do we add RA, B 0 and 1 together? And here is whe=
re
>> I get lost.  I just don't understand how to turn RA and B 0 and 1 in to
>> the proper number to put into the output bits. Would you please help me
>> with this.
>> Thanks,
>> rich!
>>
>> P.S. This is how it should look.
>> --------------------------------- ----------------------------------
>>                   |    Input    |    Output                  |
>>             |    Input    |    Output |
>>                   |   Bits       |    Bits    PortA          |
>>            |    Bits      |    Bits   PortB |
>>                   |-----|-----|-----|-----|-----|-----|
>> |-----|-----|-----|-----|-----|------|
>>                   |   1  |   0   |   2   |   3  |   6   |   7  |
>>                |   1   |   0  |   2   |   3  |   4   |   5    |
>>                   |-----|-----|-----|-----|-----|-----|
>> |-----|-----|-----|-----|-----|------|
>>                   |   0   |   0  |  1   |   0   |   0   |   1  |
>>                   |   0  |    0  |   1   |   0  |    0  | 1    |
>>                   |-----|-----|-----|-----|-----|-----|
>> |-----|-----|-----|-----|------|-----|
>>                   |   0   |  1   |  0   |   1   |   0   |   0 |
>>                   |   0  |    1  |   0  |   1   |    0 |   0   |
>>                   |-----|-----|-----|-----|-----|-----|
>> |-----|-----|-----|-----|------|-----|
>>                   |   1   |   0  |   0  |   0   |   1   |   0  |
>>                |   1   |   0  |   0  |   0   |   1    | 0   |
>>                   |-----|-----|-----|-----|-----|-----|
>> |-----|-----|-----|-----|------|-----|
>>                   |   1  |   1   |   0   |   0  |   0   |   1 |
>>                   |   1  |    1  |   0   |   0  |    0 |   1   |
>>                   |-----|-----|-----|-----|-----|-----|
>> |-----|-----|-----|-----|------|-----|
>> Thanks,
>> rich!
>>
>>
>> On 9/13/2015 6:00 AM, Jan-Erik S=F6derholm wrote:
>>
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