KermMartian at 07:50, 6 February 2016

2016-02-06T07:50:38Z

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	== Uses ==		== Uses ==

	XORing numbers is used a lot to invert sprites and such. It is also very useful in bit-masking. See [[Z80:Flags-and-~~bit-level-instructions~~\|here]] for more information about bit-masking.		XORing numbers is used a lot to invert sprites and such. It is also very useful in bit-masking. See [[Z80:Flags and Bit-Level Instructions\|here]] for more information about bit-masking.

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

Maintenance script: Initial automated import

2016-02-05T22:20:52Z

Initial automated import

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XOR is an instruction that takes one 8-bit input and compares it with the accumulator. XOR is similar to [[Z80:Opcodes:OR|Or]], except for one thing: only 1 of the 2 test bits can be set or else it will result in a zero. The final answer is stored to the accumulator.

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

== Syntax ==

XOR op8

=== Acceptable inputs ===

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

== Effects ==

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

== Uses ==

XORing numbers is used a lot to invert sprites and such. It is also very useful in bit-masking. See [[Z80:Flags-and-bit-level-instructions|here]] for more information about bit-masking.

== 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:OR|OR]],[[Z80:Opcodes:RES|RES]],[[Z80:Opcodes:SCF|SCF]],[[Z80:Opcodes:SET|SET]]

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

Z80:Opcodes:XOR - Revision history

KermMartian at 07:50, 6 February 2016

Maintenance script: Initial automated import