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EOR: Difference between revisions

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(clobbered -> affected)
(additional cycles)
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|49
|49
|2 bytes
|2 bytes
|2 cycles
|2 cycles*
|+
|+
|absolute
|absolute
|4D
|4D
|3 bytes
|3 bytes
|4 cycles
|4 cycles*
|+
|+
|absolute long
|absolute long
|4F
|4F
|4 bytes
|4 bytes
|5 cycles
|5 cycles*
|+
|+
|direct page
|direct page
|45
|45
|2 bytes
|2 bytes
|3 cycles
|3 cycles*
|+
|+
|direct page indirect
|direct page indirect
|52
|52
|2 bytes
|2 bytes
|5 cycles
|5 cycles*
|+
|+
|direct page indirect long
|direct page indirect long
|47
|47
|2 bytes
|2 bytes
|6 cycles
|6 cycles*
|+
|+
|absolute indexed by X
|absolute indexed by X
|5D
|5D
|3 bytes
|3 bytes
|4 cycles
|4 cycles*
|+
|+
|absolute long indexed by X
|absolute long indexed by X
|5F
|5F
|4 bytes
|4 bytes
|5 cycles
|5 cycles*
|+
|+
|absolute indexed by Y
|absolute indexed by Y
|59
|59
|3 bytes
|3 bytes
|4 cycles
|4 cycles*
|+
|+
|direct page indexed by X
|direct page indexed by X
|55
|55
|2 bytes
|2 bytes
|4 cycles
|4 cycles*
|+
|+
|direct page indexed indirect by X
|direct page indexed indirect by X
|41
|41
|2 bytes
|2 bytes
|6 cycles
|6 cycles*
|+
|+
|direct page indirect indexed by Y
|direct page indirect indexed by Y
|51
|51
|2 bytes
|2 bytes
|5 cycles
|5 cycles*
|+
|+
|direct page indirect long indexed by Y
|direct page indirect long indexed by Y
|57
|57
|2 bytes
|2 bytes
|6 cycles
|6 cycles*
|+
|+
|stack relative
|stack relative
|43
|43
|2 bytes
|2 bytes
|4 cycles
|4 cycles*
|+
|+
|stack relative indirect indexed by Y
|stack relative indirect indexed by Y
|53
|53
|2 bytes
|2 bytes
|7 cycles
|7 cycles*
|}
|}


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'''EOR''' is a 65x instruction that performs an [https://mathworld.wolfram.com/XOR.html exclusive or].
'''EOR''' is a 65x instruction that performs an [https://mathworld.wolfram.com/XOR.html exclusive or].  In all [[addressing modes]], EOR takes one extra cycle when the accumulator is 16 bits wide.


=== See Also ===
=== See Also ===

Revision as of 00:08, 20 November 2023

Basic Info
Addressing Mode Opcode Length Speed
immediate 49 2 bytes 2 cycles*
absolute 4D 3 bytes 4 cycles*
absolute long 4F 4 bytes 5 cycles*
direct page 45 2 bytes 3 cycles*
direct page indirect 52 2 bytes 5 cycles*
direct page indirect long 47 2 bytes 6 cycles*
absolute indexed by X 5D 3 bytes 4 cycles*
absolute long indexed by X 5F 4 bytes 5 cycles*
absolute indexed by Y 59 3 bytes 4 cycles*
direct page indexed by X 55 2 bytes 4 cycles*
direct page indexed indirect by X 41 2 bytes 6 cycles*
direct page indirect indexed by Y 51 2 bytes 5 cycles*
direct page indirect long indexed by Y 57 2 bytes 6 cycles*
stack relative 43 2 bytes 4 cycles*
stack relative indirect indexed by Y 53 2 bytes 7 cycles*
Flags Affected
N V M X D I Z C
. . . . . .

EOR is a 65x instruction that performs an exclusive or. In all addressing modes, EOR takes one extra cycle when the accumulator is 16 bits wide.

See Also

External Links

Retrieved from "https://sneslab.net/mw/index.php?title=EOR&oldid=10049"