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R. Belmont

Cuckoo for IGAvania

Reged: 09/21/03

Posts: 9716

Loc: ECV-197 The Orville

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Re: No more sounds in wiz
01/10/12 07:52 PM

> huh? PULSE_LINE is not unusual, it's for edge triggered interrupts. IMO the
> almost-always-wrong type in MAME is HOLD_LINE.

Even for CPUs with edge-triggered interrupts, circuits that pulse the IRQ line are pretty rare (it's extra gates). Usually the line is only triggered by an edge in one direction so the peripheral goes low->high and that trips the CPU. Then you ack it and the line goes high->low so other sources may drive the line.

Entire thread
Subject	Posted by	Posted on
No more sounds in wiz	darq	01/07/12 02:11 AM
Re: No more sounds in wiz	Stiletto	01/07/12 02:54 AM
Re: No more sounds in wiz	darq	01/07/12 04:19 AM
Re: No more sounds in wiz	Stiletto	01/08/12 07:42 PM
Re: No more sounds in wiz	hap	01/07/12 05:14 PM
Re: No more sounds in wiz	B2K24	01/08/12 08:46 PM
Re: No more sounds in wiz	darq	01/09/12 10:34 AM
Re: No more sounds in wiz	R. Belmont	01/09/12 06:10 PM
Re: No more sounds in wiz	hap	01/10/12 12:06 AM
Re: No more sounds in wiz	R. Belmont	01/10/12 07:52 PM
Re: No more sounds in wiz	darq	01/10/12 12:31 AM
Re: No more sounds in wiz	darq	01/09/12 09:46 PM
Re: No more sounds in wiz	R. Belmont	01/09/12 11:20 PM
Re: No more sounds in wiz	Naoki	01/07/12 12:13 PM
Re: No more sounds in wiz	Tafoid	01/07/12 02:59 AM

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