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PICList Thread
'Shortforms for radix specification?'
1998\01\26@174125 by Morgan Olsson

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In a program example I learned that a simple dot can be used as prefix for
decimal radix. Like:
ten  EQU  .10   ;Works OK

Are there such shortforms for other radix?
(I«m using MPLAB 3.30, and can only find clumsier things like d'157' for
decimal 157)

I«ve tried:
0b10111011 and 10111011b for specifying binary but I don«t work
0d10 and 10d for specifying decimal but I don«t work

Thanks in advance
/Morgan



Morgan Olsson, MORGANS REGLERTEKNIK, Sweden, ph: +46 (0)414 70741; fax 70331
============================================================================

1998\01\26@181235 by Herbert Graf

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> -----Original Message-----
> From: pic microcontroller discussion list
> [spam_OUTPICLISTTakeThisOuTspamMITVMA.MIT.EDU]On Behalf Of Morgan Olsson
> Sent: January 26, 1998 16:22
> To: .....PICLISTKILLspamspam@spam@MITVMA.MIT.EDU
> Subject: Shortforms for radix specification?
>
>
> In a program example I learned that a simple dot can be used as prefix for
> decimal radix. Like:
> ten  EQU  .10   ;Works OK
>
> Are there such shortforms for other radix?
> (I4m using MPLAB 3.30, and can only find clumsier things like d'157' for
> decimal 157)
>
> I4ve tried:
> 0b10111011 and 10111011b for specifying binary but I don4t work
> 0d10 and 10d for specifying decimal but I don4t work

       I beleive for binary one uses b'10111011'. As for the rest, I don't know
, I
usually set radix to decimal, use 0x for hex when I need it, and when I have
a different base I usually convert with my trusty calculator. Hope this
helps, TTYL

1998\01\26@183117 by Andrew Warren

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Morgan Olsson <PICLISTspamKILLspamMITVMA.MIT.EDU> wrote:

> In a program example I learned that a simple dot can be used as
> prefix for decimal radix. Like:
>
>     ten  EQU  .10   ;Works OK
>
> Are there such shortforms for other radix? (I'm using MPLAB 3.30,
> and can only find clumsier things like d'157' for decimal 157)

Morgan:

Yes, there are...

   Hexadecimal:

       0xAB
       0ABH (note that the first digit of the hex value must be
             numeric; "ABH" won't work)

   Binary:

       10101010B (note that this only works if the default radix has
                  been set to something other than hexadecimal)

   Octal:

       I could tell you, but octal on an 8-bit processor is an
       abomination before God, so I won't.

Many of us have wished for unambiguous radix specifiers (like a
preceding "%" for binary or "$" for hexadecimal), but Microchip has
decided not to add them.

The bizarre, often-ambiguous trailing-B and trailing-H format is in
MPASM only to provide compatibility with Microchip's earlier
assemblers... Just as the PIC instruction-set mnemonics were
apparently developed by someone who'd never seen a microprocessor
before, that early assembler's radix-specifiers were apparently
chosen in an absolute vacuum.

-Andy

=== Andrew Warren - .....fastfwdKILLspamspam.....ix.netcom.com
=== Fast Forward Engineering - Vista, California
=== http://www.geocities.com/SiliconValley/2499

1998\01\26@190615 by Morgan Olsson

picon face
At 15:30 1998-01-26 -0800, you wrote:
{Quote hidden}

Wonderful!:
Just to set default to decimal (and maybe use . as prefix for decimal)
Using 10110101B for binary (small b work too?)
and 0xADB for hex

I hope Microchip will listen to their users whishes about mnemonics etc soon.
...And will Microsoft listen to theirs for that matter...
...Does "Micro" mean ... ?  ;)
/Morgan .O
Morgan Olsson, MORGANS REGLERTEKNIK, Sweden, ph: +46 (0)414 70741; fax 70331
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