Video Line Interrupt Control Register

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Revision as of 22:48, 20 October 2018 by wiki>Emook (Added bit definitions)
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Number $22
Readable Yes
Writable Yes
Short Description Controls the timing of raster interrupts and the ULA frame interrupt.
Bit Function
7 (R) INT flag, 1=During INT
6-3 Reserved, must be 0
2 If 1 disables original ULA interrupt (Reset to 0 after a reset)
1 If 1 enables Line Interrupt (Reset to 0 after a reset)
0 MSB of Line Interrupt line value (Reset to 0 after a reset)