KermMartian at 07:50, 6 February 2016

2016-02-06T07:50:15Z

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	== Uses ==		== Uses ==

	Used in bit-masking. For more information see [[Z80:Flags-and-~~bit-level-instructions~~\|here]].		Used in bit-masking. For more information see [[Z80:Flags and Bit-Level Instructions\|here]].

	== T-States ==		== T-States ==

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2016-02-05T22:09:47Z

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Or is an instruction that takes an 8-bit input an compare sit with the accumulator. It checks to see if anything is set, and if neither are set, it results in a zero.

'''0 and 0''' result: 0<br />
'''0 and 1''' result: 1<br />
'''1 and 0''' result: 1<br />
'''1 and 1''' result: 1

== Syntax ==

OR op8

=== Allowed Instructions ===

or a
or b
or c
or d
or e
or h
or l
or ixh
or ixl
or iyh
or iyl
or (hl)
or (ix+n)
or (iy+n)
or n ;8 bit constant

== Effects ==

C and N flags cleared, P/V detects parity, and rest are modified by definition.

== Uses ==

Used in bit-masking. For more information see [[Z80:Flags-and-bit-level-instructions|here]].

== T-States ==
r denotes 8-bit register.

{| class="wikitable"
| r || 4
|-
| X || 7
|-
| (hl) || 7
|-
| (ix+X) || 19
|-
| (iy+X) || 19
|}

== See Also ==
[[Z80:Opcodes:AND|AND]],[[Z80:Opcodes:BIT|BIT]],[[Z80:Opcodes:CCF|CCF]],[[Z80:Opcodes:CPL|CPL]],[[Z80:Opcodes:RES|RES]],[[Z80:Opcodes:SCF|SCF]],[[Z80:Opcodes:SET|SET]],[[Z80:Opcodes:XOR|XOR]]

{{lowercase}}
[[Category:Z80 Assembly]]
[[Category:Z80 Heaven]]
[[Category:Z80 Opcodes]]

Z80:Opcodes:OR - Revision history

KermMartian at 07:50, 6 February 2016

Maintenance script: Initial automated import