[Info-vax] BASIC and AST routines

[Johnny Billquist]

On 2021-11-25 06:42, Dave Froble wrote:
> On 11/24/2021 5:34 PM, Bob Gezelter wrote:
>> On more than a few occasions, particularly when using ASTs with QIO on 
>> the
>> RSX-11 family using 16-bit integers, where ASTPARM was not available, the
>> straightforward solution was to use a data structured headlined by the IO
>> Status Block.
> 
> That is a neat idea.  Of course, I'd not like the concept of messing 
> with the IOSB, but, when all else fails, it is a solution.

??? You're not messing with the IOSB. It's just that your I/O have some 
context and information, and you keep that in a structure that also 
contains the IOSB. And when the AST comes, you get the pointer to the 
IOSB, and hence also the pointer to your data structure with all the 
rest of the context for your I/O.

   Johnny