http://learn.cemetech.net/index.php?action=history&feed=atom&title=Z80%3AOpcodes%3ACPIZ80:Opcodes:CPI - Revision history2026-05-02T06:10:13ZRevision history for this page on the wikiMediaWiki 1.43.3http://learn.cemetech.net/index.php?title=Z80:Opcodes:CPI&diff=319&oldid=prevMaintenance script: Initial automated import2016-02-05T22:38:22Z<p>Initial automated import</p>
<p><b>New page</b></p><div><!-- Short summary of instruction --><br />
Multiple instructions combined into one. CPD does these things in this order:<br />
# [[Z80:Opcodes:CP|CP]] (HL)<br />
# [[Z80:Opcodes:INC|INC]] HL<br />
# [[Z80:Opcodes:DEC|DEC]] BC<br />
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== Syntax ==<br />
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<!-- Syntax for this instruction --><br />
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No operands.<br />
<br />
CPI<br />
<br />
== Effects ==<br />
<br />
<!-- What the instruction does to flags --><br />
The carry is preserved, N is set and all the other flags are affected as defined. P/V denotes the overflowing of BC, while the Z flag is set if A=(HL) '''before''' HL is increased.<br />
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== Uses ==<br />
<br />
See [[Z80:Opcodes:CPIR|CPIR]] for one example use.<br />
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== T-States ==<br />
16 t-states<br />
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== See Also ==<br />
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<!-- Other instructions that are related to this one --><br />
[[Z80:Opcodes:BIT|BIT]],[[Z80:Opcodes:CALL|CALL]],[[Z80:Opcodes:CP|CP]],[[Z80:Opcodes:CPD|CPD]],[[Z80:Opcodes:CPDR|CPDR]],[[Z80:Opcodes:CPIR|CPIR]],[[Z80:Opcodes:JP|JP]],[[Z80:Opcodes:JR|JR]]<br />
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{{lowercase}}<br />
[[Category:Z80 Assembly]]<br />
[[Category:Z80 Heaven]]<br />
[[Category:Z80 Opcodes]]</div>Maintenance script