-----Oorspronkelijk bericht-----
Van: Ricardo Bittencourt Vidigal Leitao <[EMAIL PROTECTED]>
Aan: MSX Mailing List <[EMAIL PROTECTED]>
Datum: dinsdag 4 januari 2000 21:20
Onderwerp: Re: No interrupts? (coding question)
>On Tue, 4 Jan 2000, d-fader wrote:
>
>> I have a (maybe pretty stupid) question... A while ago someone told me
that
>> it is possible to turn off all interrupts (No call to $fd9f and stuff)...
Is
>> this true??
>
> Sure, all you need to do is to execute the assembly instruction
>"DI" (opcode F3). It disables all the interrupts except for the NMI, which
>is not used in the MSX anyway. To enable interrupts again, use the
>assembly instruction "EI".
I know this one, but what I could make up from the conversation is that all
interrupts could be turned off.. The only problem is that I don't know what
he meant... In any case, it wasn't di and ei...
>
> You can turn off the interrupts in VDP also, but this does not
>interrupt IRQs from another devices (assuming there is strange hardware
>connected in your machine).
>
I think this is what I'm searching for... Could you provide me with more
information about that?
>----------------------------------------------------------------
>Ricardo Bittencourt http://www.lsi.usp.br/~ricardo
>[EMAIL PROTECTED] "Ricardo is subtle, but malicious he is not"
>------ Uniao contra o forward - crie suas proprias piadas ------
>
>
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