NOP (SPC700): Difference between revisions

Latest revision as of 23:33, 8 August 2024


Basic Info
Addressing Mode	Opcode	Length	Speed
Implied (type 3)	00	1 byte	2 cycles


Flags Affected
N	V	P	B	H	I	Z	C
.	.	.	.	.	.	.	.

NOP is an SPC700 instruction that does nothing (other than increment the program counter by one).

No flags are affected.

NOP

@@ Line 1: / Line 1: @@
-{| class="wikitable" style="float:right;clear:right;width:30%"
+{| class="wikitable" style="float:right;clear:right;width:40%"
 !colspan="8"|Basic Info
 |+
@@ Line 7: / Line 7: @@
 |'''Speed'''
 |+
-|implied
+|[[Implied]] (type 3)
 |00
 |1 byte
@@ Line 14: / Line 14: @@
 {| class="wikitable" style="float:right;clear:right;width:30%"
-!colspan="8"|Flags Clobbered
+!colspan="8"|Flags Affected
 |+
-|N
+|[[Negative Flag|N]]
-|V
+|[[Overflow Flag|V]]
-|P
+|[[Direct Page Flag|P]]
-|B
+|[[Break Flag|B]]
-|H
+|[[Half-Carry Flag|H]]
-|I
+|[[Interrupt Enable Flag|I]]
-|Z
+|[[Zero Flag|Z]]
-|C
+|[[Carry Flag|C]]
 |+
 |.
@@ Line 35: / Line 35: @@
 |}
-'''NOP''' is an [[SPC700]] instruction that does nothing.
+'''NOP''' is an [[SPC700]] instruction that does nothing (other than increment the [[program counter]] by one).
+No flags are affected.
+==== Syntax ====
+<pre>
+NOP
+</pre>
 === See Also ===
 * [[SLEEP]]
 * [[STOP (SPC700)]]
+* [[NOP]]
+* [[WDM]]
+* [[NOP (Super FX)]]
 === External Links ===
-* Official Nintendo documentation on NOP: [https://archive.org/details/SNESDevManual/book1/page/n235|thumb  Appendix C-10]
+* Official Nintendo documentation on NOP: Table C-20 in [https://archive.org/details/SNESDevManual/book1/page/n235|thumb  Appendix C-10]
+* anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L512
 [[Category:ASM]]
 [[Category:SPC700]]
+[[Category:Other SPC700 Commands]]
+[[Category:One-byte Instructions]]