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'''INX''' is a 65x instruction that increments the [[X index register]] by one.
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!colspan="8"|Basic Info
!colspan="8"|Basic Info
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|'''Speed'''
|'''Speed'''
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|implied
|[[Implied]] (type 1)
|E8
|E8
|1 byte
|1 byte
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!colspan="8"|Flags Clobbered
!colspan="8"|Flags Affected
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|[[N Flag|N]]
|[[V Flag|V]]
|[[M Flag|M]]
|[[X Flag|X]]
|[[D Flag|D]]
|[[I Flag|I]]
|[[Z Flag|Z]]
|[[C Flag|C]]
|+
|+
|N
|N
|V
|M
|X
|D
|I
|Z
|C
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'''INX''' is a 65x instruction that increments the [[X index register]] by one.  The state of the [[decimal flag]] has no effect on the behavior of INX.  Unlike [[ADC]], INX never affects the [[carry flag]].
==== Syntax ====
<pre>
INX
</pre>


=== See Also ===
=== See Also ===
* [[DEX]]
* [[INY]]
* [[INY]]
* [[INC]]
* [[INC]]
* [[INC (SPC700)]]
* [[INC (Super FX)]]


=== External Links ===
=== External Links ===
* [[Eyes & Lichty]] page on INX: https://archive.org/details/0893037893ProgrammingThe65816/page/n483
* [[Eyes & Lichty]], [https://archive.org/details/0893037893ProgrammingThe65816/page/457 page 457] on INX
* [[Labiak]] page on INX: https://archive.org/details/Programming_the_65816/page/n153
* [[Labiak]], [https://archive.org/details/Programming_the_65816/page/n153 page 143] on INX
* [[MCS6500 Manual]] page on INX: https://archive.org/details/mos_microcomputers_programming_manual/page/n115
* 7.4 on [[MCS6500 Manual]], [https://archive.org/details/mos_microcomputers_programming_manual/page/n115 page 97] on INX
* [[Carr]] page on INX: https://archive.org/details/6502UsersManual/page/n273
* [[Carr]], [https://archive.org/details/6502UsersManual/page/n273 page 260] on INX
* [[Leventhal]] page on INX: https://archive.org/details/6502-assembly-language-programming/page/n116
* [[Leventhal]], [https://archive.org/details/6502-assembly-language-programming/page/n116 page 3-67] on INX
* snes9x implementation of INX: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1546
* Clark, Bruce. http://www.6502.org/tutorials/65c816opcodes.html#6.1.1.3


[[Category:ASM]]
[[Category:ASM]]
[[Category:Inherited from 6502]]
[[Category:Inherited from 6502]]
[[Category:One-byte Instructions]]
[[Category:Implied Instructions]]
[[Category:Two-cycle Instructions]]

Latest revision as of 20:07, 12 August 2024

Basic Info
Addressing Mode Opcode Length Speed
Implied (type 1) E8 1 byte 2 cycles
Flags Affected
N V M X D I Z C
N . . . . . Z .

INX is a 65x instruction that increments the X index register by one. The state of the decimal flag has no effect on the behavior of INX. Unlike ADC, INX never affects the carry flag.

Syntax

INX

See Also

External Links