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GeneralRe: I just noticed I missed my CP birthday! Pin
Daniel Pfeffer20-Apr-18 5:28
professionalDaniel Pfeffer20-Apr-18 5:28 
GeneralThought of the Day Pin
OriginalGriff19-Apr-18 5:17
mveOriginalGriff19-Apr-18 5:17 
GeneralRe: Thought of the Day Pin
lopatir19-Apr-18 5:23
Memberlopatir19-Apr-18 5:23 
GeneralRe: Thought of the Day Pin
W Balboos, GHB19-Apr-18 5:31
mveW Balboos, GHB19-Apr-18 5:31 
GeneralArgh! Interrupt problems! Pin
CodeWraith19-Apr-18 5:15
MemberCodeWraith19-Apr-18 5:15 
GeneralRe: Argh! Interrupt problems! Pin
OriginalGriff19-Apr-18 5:22
mveOriginalGriff19-Apr-18 5:22 
GeneralRe: Argh! Interrupt problems! Pin
CodeWraith19-Apr-18 5:31
MemberCodeWraith19-Apr-18 5:31 
GeneralRe: Argh! Interrupt problems! Pin
lopatir19-Apr-18 5:42
Memberlopatir19-Apr-18 5:42 
I was thinking the same as OG, 16 IRQ's needs only 4 bits (so the byte could handle up to 256 IRQ's - enough for the future.)

Could be wrong but back in the day I sort of remember when the Z80 caught an IRQ it disabled further interrupts till you executed a particular instruction (or was it a special variant of the RET instruction?) - something like that? (And there may have been 1 or 2 specific IRQs that weren't disabled). Was a loooong time ago, could be wrong, may have been a dream.

Perhaps your CPU has something similar?
Signature ready for installation. Please Reboot now.

GeneralRe: Argh! Interrupt problems! Pin
OriginalGriff19-Apr-18 5:49
mveOriginalGriff19-Apr-18 5:49 
GeneralRe: Argh! Interrupt problems! Pin
Marc Clifton19-Apr-18 6:32
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GeneralRe: Argh! Interrupt problems! Pin
CodeWraith19-Apr-18 7:03
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GeneralRe: Argh! Interrupt problems! Pin
Marc Clifton20-Apr-18 2:52
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GeneralRe: Argh! Interrupt problems! Pin
Slacker00719-Apr-18 5:36
professionalSlacker00719-Apr-18 5:36 
GeneralRe: Argh! Interrupt problems! Pin
OriginalGriff19-Apr-18 5:50
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GeneralRe: Argh! Interrupt problems! Pin
Slacker00719-Apr-18 6:07
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GeneralRe: Argh! Interrupt problems! Pin
lopatir19-Apr-18 6:17
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GeneralRe: Argh! Interrupt problems! Pin
OriginalGriff19-Apr-18 6:21
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GeneralRe: Argh! Interrupt problems! Pin
lopatir19-Apr-18 6:36
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GeneralRe: Argh! Interrupt problems! Pin
OriginalGriff19-Apr-18 8:27
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GeneralRe: Argh! Interrupt problems! Pin
CodeWraith19-Apr-18 7:13
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GeneralRe: Argh! Interrupt problems! Pin
Marc Clifton19-Apr-18 6:23
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GeneralRe: Argh! Interrupt problems! Pin
OriginalGriff19-Apr-18 6:27
mveOriginalGriff19-Apr-18 6:27 
GeneralAPOD Pin
R. Giskard Reventlov19-Apr-18 4:27
MemberR. Giskard Reventlov19-Apr-18 4:27 
GeneralRe: APOD Pin
glennPattonInThePubAgain!19-Apr-18 4:45
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GeneralRe: APOD Pin
lopatir19-Apr-18 5:03
Memberlopatir19-Apr-18 5:03 

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