Acorn Arcade forums: Programming: The Hourglass and Vectors
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The Hourglass and Vectors |
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sirbod (10:53 21/6/2012)
sirbod (09:40 22/6/2012)
sirbod (10:52 22/6/2012)
Phlamethrower (12:12 22/6/2012)
sirbod (13:34 22/6/2012)
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Jon Abbott |
Message #120655, posted by sirbod at 10:53, 21/6/2012 |
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Posts: 563
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What vectors does having the hourglass displayed trigger?
The reason I ask, is that if you display an hourglass (ie drop to BASIC and do SYS "Hourglass_On") and then try launching Sensible Soccer - it hangs.
This implies that having the hourglass displayed is possibly triggering a vector that SS takes over, although I can't see anything obvious in the PRM's.
I thought the hourglass was handled totally in hardware - am I missing something? |
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Jon Abbott |
Message #120668, posted by sirbod at 09:40, 22/6/2012, in reply to message #120655 |
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Does the Hourglass use TickerV? How does it get animated?
I wish the online OS source code was searchable...I wouldn't need to keep asking!
EDIT: Found it eventually in the source, yes it does use TickerV.
[Edited by sirbod at 11:16, 22/6/2012] |
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Jon Abbott |
Message #120669, posted by sirbod at 10:52, 22/6/2012, in reply to message #120668 |
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Next question, how do I intercept TickerV? I'm not sure how to stop claimants further down the chain from being called.
ie, the TickerV chain becomes the following whilst changing discs via hot-key:
1. Hourglass ticker code
2. My intercept code
3. ...claimants here on down aren't called
Once the disc image is loaded and the Hourglass is off, I can remove my intercept.
EDIT: Doh! Just pull the PC fro the stack to intercept.
[Edited by sirbod at 06:44, 25/6/2012] |
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Jeffrey Lee |
Message #120672, posted by Phlamethrower at 12:12, 22/6/2012, in reply to message #120668 |
 Hot Hot Hot Hot Hot Hot Hot Hot Hot Hot Hot Hot Hot stuff
Posts: 15100
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I wish the online OS source code was searchable...I wouldn't need to keep asking! 1. Download source
2. Learn to use grep
3. Profit!
If you're having trouble finding the source for specific modules then you can also look in ModuleDB. |
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Jon Abbott |
Message #120674, posted by sirbod at 13:34, 22/6/2012, in reply to message #120672 |
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Posts: 563
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1. Steal underpants
2. ?
3. Profit! |
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Acorn Arcade forums: Programming: The Hourglass and Vectors |
