OSLib bug fixes (various)

[Tony van der Hoff]

On Sun, 14 Jan 2001, at 18:43:29, Timothy Baldwin
<csyteb at comp.leeds.ac.uk> wrote on the subject "OSLib bug fixes
(various)":

>On Fri, 12 Jan 2001, Daniel Ellis wrote:
>> On Fri 12 Jan, Tony van der Hoff wrote:
>
>> > >+ os_int_on() and os_int_off() added as these can be called from user
>> > >   and 32 bit modes.
>> > Really? With valid APCS - this was the reason they weren't included in
>> > the first place.
>
>In USR26 and USR32 modes fhe I flag can't be written to, there it's state
>won't be restore on function exit, also APCS32 does not restore the flags so
>the I flag will remain as set by os_int_on() or os_int_off().
>
If I understand you correctly, you're saying that in 26-bit privileged
modes, these are effectively no-ops, but they work in all other modes.
Fair enough, that can be documented. 

I certainly have no objection to enabling these modes, if that's what
people want...
>> 
>> > >+ DefMod checks SWI numbers with |xos_swi_number_from_string|.
>> 
>> Surely this will error if the module supplying the SWI isn't resident?
>
>In which case the SWI number is assumed to be valid.
>
I think this is quite a good idea, but it should throw a warning, not an
error. I haven't looked that closely at the patch, Timothy, what does it
actually do?

-- 
Tony van der Hoff         |  mailto:OSLib at mk-net.demon.co.uk
Buckinghamshire, England  |  http://www.mk-net.demon.co.uk/oslib/
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