[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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