RET (SPC700): Difference between revisions

Latest revision as of 21:58, 10 August 2024


Basic Info
Addressing Mode	Opcode	Length	Speed
Stack	6F	1 byte	5 cycles


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

RET (RETurn) is an SPC700 instruction that returns from a subroutine. The program counter is popped from the stack.

No flags are affected.

RET

The subroutine is usually called using CALL, TCALL, or PCALL.

@@ Line 1: / Line 1: @@
-'''RET''' (RETurn) is an [[SPC700]] instruction that returns from a subroutine.
+{| class="wikitable" style="float:right;clear:right;width:40%"
-{| class="wikitable" style="float:right;clear:right;width:30%"
 !colspan="8"|Basic Info
 |+
@@ Line 9: / Line 7: @@
 |'''Speed'''
 |+
-|implied
+|[[Stack Addressing | Stack]]
 |6F
 |1 byte
@@ Line 16: / 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 36: / Line 34: @@
 |.
 |}
+'''RET''' (RETurn) is an [[SPC700]] instruction that returns from a subroutine.  The [[program counter]] is popped from the [[stack]].
+No flags are affected.
+==== Syntax ====
+<pre>
+RET
+</pre>
+The subroutine is usually called using [[CALL]], [[TCALL]], or [[PCALL]].
 === See Also ===
 * [[RETI]]
 * [[RTS]]
+=== References ===
+* Table C-16 in [https://archive.org/details/SNESDevManual/book1/page/n234 Appendix C-9 of Book I] of the official Super Nintendo development manual
+* anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L546
 [[Category:ASM]]
 [[Category:SPC700]]
+[[Category:Subroutine Call Return Commands]]
+[[Category:One-byte Instructions]]