One question regarding the TRIS instruction:

Are all ports on a 40-pin device covered by it?

ie: TRIS PORTA
    TRIS PORTB
    TRIS PORTC
    TRIS PORTD
    TRIS PORTE

On Mon, 4 Oct 1999 15:37:25 +0100, Michael Rigby-Jones wrote:

>> -----Original Message-----
>> From: Dave Johnson [SMTP:djohnson@SIRIUS.COM]
>> Sent: Monday, October 04, 1999 2:22 PM
>> To:   PICLIST@MITVMA.MIT.EDU
>> Subject:      To Tris or not to Tris (was Re: CHANGE TRISB)
>>
>> Paul B. Webster VK2BZC wrote:
>>
>> >  Indeed, even safer,
>> >
>> >        movlw b'11100001'
>> >        tris  PORTA
>> I thought the "tris" instructions were being phased out, I remember
>> reading a recommendation not to use them, anyone know the scoop on this?
>>
>> Dave Johnson
>>
>They are being phased out on new devices.  Any existing device that has the
>TRIS instruction will always have it.  Microchip recomend not using it
>purely to make the code more portable to a newer device.  However, if it's
>there and it makes your life easier (which is does) then I see no reason not
>to use it.
>
>Mike Rigby-Jones
>