[Info-vax] VMS Software Q1 '23 Update

[Arne Vajhøj]

On 1/29/2023 1:21 AM, Dave Froble wrote:
> On 1/28/2023 10:44 PM, Arne Vajhøj wrote:
>> On 1/28/2023 10:39 PM, Dave Froble wrote:
>>> On 1/28/2023 8:28 PM, Scott Dorsey wrote:
>>>> One of the absolute FIRST things that I was told about floating point
>>>> variables in my first programming class was to NEVER use them to 
>>>> represent
>>>> money.
>>>
>>> What if you didn't have a choice?
>>>
>>> RSTS/E V04b
>>>
>>> Signed word integers
>>> Strings
>>> Single and double D-float
>>>
>>> That's all there was ...
>>
>> There is always integers and implied decimal.
>>
>> Not fun though.
>>
>> And one need an integer with enough bits ...
>>
>> Could PDP-11 do 32 bit integers?
> 
> What part of "signed word integers" didn't you understand?  As in 16 
> bits. -32768 to 32767.

I sort of had guessed that word was the same as on VAX,
but I don't understand how it can't have a 32 bit integer.

How does one work with file sizes and file position
in bytes on PDP-11?

I know you don't do C, but I believe C was invented on
PDP-11.

Arne