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Groups > comp.lang.forth > #39300

Re: RfD: 2s-Complement Wrap-Around Integers

From Bernd Paysan <bernd.paysan@gmx.de>
Newsgroups comp.lang.forth
Subject Re: RfD: 2s-Complement Wrap-Around Integers
Date 2015-05-25 21:45 +0200
Organization A noiseless patient Spider
Message-ID <mjvu2t$a02$1@dont-email.me> (permalink)
References <2015May25.185819@mips.complang.tuwien.ac.at> <mjvl68$6om$1@dont-email.me>

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Alex McDonald wrote:

> on 25/05/2015 09:58:19, anton ertl wrote:
>> Problem
>> 
>> Many programs depend on 2s-complement representation of negative
>> integers (e.g., assuming that TRUE is -1), and on wraparound behaviour
>> on integer overflow, and should declare an environmental dependency on
>> these features. These programs should become unconditionally standard
>> programs.
>> 
> 
> TRUE NEGATE

I suggest:

TRUE ABS

short form of Forth syntax for "absolutely true", and also incidently +1 
;-).

-- 
Bernd Paysan
"If you want it done right, you have to do it yourself"
net2o ID: kQusJzA;7*?t=uy@X}1GWr!+0qqp_Cn176t4(dQ*
http://bernd-paysan.de/

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Thread

RfD: 2s-Complement Wrap-Around Integers anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-05-25 16:58 +0000
  Re: RfD: 2s-Complement Wrap-Around Integers "Alex McDonald" <blog@rivadpm.com> - 2015-05-25 10:13 -0700
    Re: RfD: 2s-Complement Wrap-Around Integers Bernd Paysan <bernd.paysan@gmx.de> - 2015-05-25 21:45 +0200
  2nd RfD: 2s-Complement Wrap-Around Integers anton@mips.complang.tuwien.ac.at (Anton Ertl) - 2015-06-03 09:05 +0000

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