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add sys.update_rasterirq, more robust sei/cli handling, added simple c64 sprite multiplexer example

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Irmen de Jong
2025-09-21 00:28:33 +02:00
parent 19f19f3880
commit 4939e3df55
6 changed files with 198 additions and 26 deletions
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docs/source/targetsystem.rst
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@@ -196,6 +196,7 @@ These routines are::
sys.set_irq(uword handler_address)
sys.set_rasterirq(uword handler_address, uword rasterline)
sys.update_rasterirq(uword handler_address, uword rasterline)
sys.restore_irq() ; set everything back to the systems default irq handler
The IRQ handler routine must return a boolean value (0 or 1) in the A register: