[Simh] pdp7/decsys bug?

[Daniel Baum]

I tried that, and I managed to get it to print garbage instead of .0000.

The 'REAL' keyword is actually apparently not mentioned in the compiler
documentation; it says that data types are determined by the first letter of
the variable name.

So, I am still at a loss to explain why it doesn't work. I still would not
be surprised if I am doing something wrong, but I've now no idea at all what
it is, especially in light of the fact that I've had no problem getting
similar programs to work on other compilers, as for example in OS/8.
\
Thanks,

Daniel


> Have you tried explicitly defining AA as a float??
>
> Doesn't look at all like a simulator issue to me -
>
> Villy
>


>> Hi all,
>>
>> I have recently been putting various compilers and systems through
>> their
>> paces to see if I can get them to work.
>>
>> I have had several successes (I will list them if anyone's
>> interested), but
>> I believe it is possible that there is a bug in the pdp7 simulator.
>>
>> I have been playing with the decsys Fortran compiler. I have been
>> able to
>> compile and run programs, but it appears to have a problem with
>> floating
>> point variables.
>>
>> The following:
>>
>>            FLOATING POINT TEST
>>            AA=0.12345
>>            WRITE 2,200,AA
>> 200      FORMAT(F8.5)
>>            END
>>
>> gives .00000.
>>
>> I am of course willing to assume that it might be me that's doing
>> something
>> wrong :~)
>>
>> A similar routine with integers works as expected. Strings print
>> out OK too.
>>
>> Does anyone know where the problem is?
>>
>> Thanks,
>>
>> Daniel
>>
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