🚀 go-pugleaf

Expires:
References: <644@cord.UUCP> <7070@batcomputer.tn.cornell.edu>
Sender:
Reply-To: nsw@cord.UUCP (Neil Weinstock)
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Distribution: usa
Organization: The Flying Squid Patrol
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In article <7070@batcomputer.tn.cornell.edu> riley@tcgould.tn.cornell.edu (Daniel S. Riley) writes:
>In article <644@cord.UUCP> nsw@cord.UUCP (Neil Weinstock) writes:
>>I've been unsuccessfully trying to spawn a task.  As soon as I call AddTask()
>>I get a visit from the Guru.  I have been using the RKM (volume I, page 17)
[ ... ]
>First, remember that the usual Manx startup code is not run before your
>entry point.  None of the registers will be setup the way you expect,
>particularly a4, so you have to compile with absolute addressing, or
>else somehow get a4 setup with the right base address (I'm a little vague
>here because I'm a Lattice user...sorry).  Remember, this is an entire
>separate task you're setting up, with very little inherited from the 
>parent.

Bingo.  In fact, the Manx geta4() call turned out to be the fix (thanks Ali!).

"When all else fails, read the man(x)ual."

>Second, Tasks cannot call DOS routines.  Only processes can.  Delay()
                                                               ^^^^^^^
>is a DOS routine, so your call to Delay() in EntryPoint() is definite
 ^^^^^^^^^^^^^^^^

Wow, I had no idea, and confirmed by the RKM no less.  What's Delay() doing
in dos.library?

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| Neil Weinstock | att!cord!nsw     | "One man's garbage is another     |
| AT&T Bell Labs | nsw@cord.att.com | man's prune danish." - Harv Laser |
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