http://learn.cemetech.net/index.php?action=history&feed=atom&title=Z80%3AOpcodes%3AHALTZ80:Opcodes:HALT - Revision history2026-04-22T23:48:20ZRevision history for this page on the wikiMediaWiki 1.43.3http://learn.cemetech.net/index.php?title=Z80:Opcodes:HALT&diff=321&oldid=prevMaintenance script: Initial automated import2016-02-05T22:39:02Z<p>Initial automated import</p>
<p><b>New page</b></p><div><!-- Short summary of instruction --><br />
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Suspends all actions until the next interrupt.<br />
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'''Note:''' Since halt does wait for the next interrupt, if you disable interrupts halt will run forever, resulting in a crash. Make sure that you always either know the interrupts will be on, or turn it on right before you use the halt instruction.<br />
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== Syntax ==<br />
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<!-- Syntax for this instruction --><br />
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halt<br />
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== Effects ==<br />
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<!-- What the instruction does to flags --><br />
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All flags preserved.<br />
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== Uses ==<br />
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<!-- What the instruction can be used for --><br />
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Exactly what it says: if you need a delay, halt will provide a split second delay. You can chain halts<br />
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== T-States ==<br />
4 t-states<br />
== See Also ==<br />
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<!-- Other instructions that are related to this one --><br />
[[Z80:Opcodes:DI|DI]],[[Z80:Opcodes:EI|EI]],[[Z80:Opcodes:NOP|NOP]]<br />
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{{lowercase}}<br />
[[Category:Z80 Assembly]]<br />
[[Category:Z80 Heaven]]<br />
[[Category:Z80 Opcodes]]</div>Maintenance script