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diff musashi/m68kcpu.c @ 1778:30b5952fd32e mame_interp

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Get latency between interrupt latch and interrupt acceptance working with Musashi
author Michael Pavone <pavone@retrodev.com>
date Wed, 13 Mar 2019 22:01:22 -0700
parents ddcd59a6122e
children
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--- a/musashi/m68kcpu.c	Wed Mar 13 20:34:24 2019 -0700
+++ b/musashi/m68kcpu.c	Wed Mar 13 22:01:22 2019 -0700
@@ -898,9 +898,17 @@
 	/* If we are halted, don't do anything */
 	if(this->stopped)
 		return;
+		
+	if (this->c.int_pending == 255) {
+		this->c.int_pending = int_level;
+		return;
+	} else {
+		int_level = this->c.int_pending;
+	}
 
 	/* Acknowledge the interrupt */
 	this->c.int_ack = int_level;
+	this->c.int_pending = 255;
 	
 	vector = M68K_INT_ACK_AUTOVECTOR;//int_ack_callback(*this, int_level);