INY: Difference between revisions

Latest revision as of 20:08, 12 August 2024


Basic Info
Addressing Mode	Opcode	Length	Speed
Implied (type 1)	C8	1 byte	2 cycles


Flags Affected
N	V	M	X	D	I	Z	C
N	.	.	.	.	.	Z	.

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

Syntax

INY

External Links

Eyes & Lichty, page 458 on INY
Labiak, page 144 on INY
7.5 on MCS6500 Manual, page 97 on INY
Carr, page 261 on INY
Leventhal, page 3-68 on INY
snes9x implementation of INY: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1576
Clark, Bruce. http://www.6502.org/tutorials/65c816opcodes.html#6.1.1.3

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 |[[C Flag|C]]
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-|
+|N
 |.
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 |.
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+|Z
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 |}
-'''INY''' is a 65x instruction that increments the [[Y index register]] by one.  The state of the [[decimal flag]] has no effect on the behavior of INY.
+'''INY''' is a 65x instruction that increments the [[Y index register]] by one.  The state of the [[decimal flag]] has no effect on the behavior of INY.  Unlike [[ADC]], INY never affects the [[carry flag]].
+==== Syntax ====
+<pre>
+INY
+</pre>
 === See Also ===
@@ Line 41: / Line 46: @@
 * [[INX]]
 * [[INC]]
+* [[INC (SPC700)]]
+* [[INC (Super FX)]]
 === External Links ===
-* [[Eyes & Lichty]] page 458, on INY: https://archive.org/details/0893037893ProgrammingThe65816/page/n484
+* [[Eyes & Lichty]], [https://archive.org/details/0893037893ProgrammingThe65816/page/458 page 458] on INY
-* [[Labiak]] page 144 on INY: https://archive.org/details/Programming_the_65816/page/n154
+* [[Labiak]], [https://archive.org/details/Programming_the_65816/page/n154 page 144] on INY
-* [[MCS6500 Manual]] page on INY: https://archive.org/details/mos_microcomputers_programming_manual/page/n115
+* 7.5 on [[MCS6500 Manual]], [https://archive.org/details/mos_microcomputers_programming_manual/page/n115 page 97] on INY
-* [[Carr]] page on INY: https://archive.org/details/6502UsersManual/page/n273
+* [[Carr]], [https://archive.org/details/6502UsersManual/page/n274 page 261] on INY
-* [[Leventhal]] page on INY: https://archive.org/details/6502-assembly-language-programming/page/n117
+* [[Leventhal]], [https://archive.org/details/6502-assembly-language-programming/page/n117 page 3-68] on INY
 * snes9x implementation of INY: https://github.com/snes9xgit/snes9x/blob/master/cpuops.cpp#L1576
+* Clark, Bruce. http://www.6502.org/tutorials/65c816opcodes.html#6.1.1.3
 [[Category:ASM]]
 [[Category:Inherited from 6502]]
+[[Category:One-byte Instructions]]
+[[Category:Implied Instructions]]
+[[Category:Two-cycle Instructions]]