[Info-vax] Roadmap

Arne Vajhøj arne at vajhoej.dk
Sat Jan 5 20:31:20 EST 2019


On 1/5/2019 8:23 PM, Dave Froble wrote:
> On 1/5/2019 1:48 PM, John Reagan wrote:
>>        The format of the REAL_SIZE qualifier is as follows:
>>
>>           /REAL_SIZE={SINGLE}
>>                      {DOUBLE}
>>                      {GFLOAT}
>>                      {SFLOAT}
>>                      {TFLOAT}
>>                      {XFLOAT}
>>
>> I said to myself, "where are the explicit FFLOAT or DFLOAT keywords?"
> 
> Probably would be good to have keywords for all supported real data 
> types.  Defaults can be so annoying.
> 
>> So Dave's "OPTION SIZE = ( INTEGER WORD , REAL DOUBLE )" which was 
>> originally used to say "I want extra precision on my REALs" locks into 
>> you Dfloat on Itanium.
> 
> There was a time in the past that D_FLOAT was the only 8 byte real. Then 
> things got "interesting".

PDP-11 ?

I believe all VAX had both D and G.

Arne




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