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From: Rachy (all posts)
Date: 2001-07-31
Subject: Re: Castle Master once again
Hello there!

On 26 Jul 2001, at 10:42, Mike Dailly wrote:

> I checked this game on my emulator... and it works fine... Digisound
> and all... So, I can tell you that the bits IRQ are ONLY set until a
> CLI, then once the CLI happens "IF" the irq is flagged to generate an
> interrupt, one will happen directly after the CLI.

You were right Mike, it is working for now in my emulator too. BTW the problem was: I checked for interrupts only at the end of every raster line. So it means this code was not working:

CLI
NOP
SEI

if the irq is waiting for completion before the CLI command. I added an extra check at the CLI command execution.

I just wrote this thing to the emulator writers, maybe somebody would learn from it.

Bye:

Almos Rajnai

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