BVS (SPC700): Difference between revisions

Latest revision as of 21:59, 4 August 2024


Basic Info
Addressing Mode	Opcode	Length	Speed
Program Counter Relative	70	2 byte	when condition false: 2 cycles when condition true: 4 cycles


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

BVS is an SPC700 instruction that performs a branch when the overflow flag is set.

No flags are affected.

BVS rel

Where rel is a two's complement offset.

Table C-15, Appendix C-8 of Book I of the official Super Nintendo development manual

@@ Line 7: / Line 7: @@
 |'''Speed'''
 |+
-|relative
+|[[Program Counter Relative]]
 |70
 |2 byte
@@ Line 15: / Line 15: @@
 {| 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 36: @@
 |}
-'''BVS''' is an [[SPC700]] instruction that performs a branch when the overflow flag is set.
+'''BVS''' is an [[SPC700]] instruction that performs a branch when the [[overflow flag]] is set.
+No flags are affected.
+==== Syntax ====
+<pre>
+BVS rel
+</pre>
+Where rel is a two's complement offset.
 === See Also ===
@@ Line 43: / Line 52: @@
 === External Links ===
-* [https://archive.org/details/SNESDevManual/book1/page/n233 Appendix C-8 of Book I] of the official Super Nintendo development manual
+* Table C-15, [https://archive.org/details/SNESDevManual/book1/page/n233 Appendix C-8 of Book I] of the official Super Nintendo development manual
 [[Category:ASM]]
 [[Category:SPC700]]
 [[Category:Branching Commands]]
+[[Category:Two-byte Instructions]]