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DEC (SPC700): Difference between revisions

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'''DEC''' is an [[SPC700]] instruction that decrements its operand.
'''DEC''' is an [[SPC700]] instruction that decrements its operand.
==== Syntax ====
<pre>
DEC A
DEC dp
DEC dp+X
DEC !abs
DEC X
DEC Y
</pre>


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

Revision as of 19:51, 6 July 2024

Basic Info
Addressing Mode Opcode Length Speed
Accumulator 9C 1 byte 2 cycles
Direct Page 8B 2 byte 4 cycles
Direct Page Indexed by X 9B 2 byte 5 cycles
Absolute 8C 3 bytes 5 cycles
Implied (type 1) 1D 1 byte 2 cycles
Implied (type 1) DC 1 byte 2 cycles
Flags Affected
N V P B H I Z C
. . . . . .

DEC is an SPC700 instruction that decrements its operand.

Syntax

DEC A
DEC dp
DEC dp+X
DEC !abs
DEC X
DEC Y

See Also

External Links

Retrieved from "https://sneslab.net/mw/index.php?title=DEC_(SPC700)&oldid=16831"