BEQ (SPC700): Difference between revisions

Latest revision as of 10:20, 14 December 2023


Basic Info
Addressing Mode	Opcode	Length	Speed
Program Counter Relative	F0	2 bytes	when condition false: 2 cycles when condition true: 4 cycles


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

BEQ is an SPC700 instruction that performs a branch when the zero flag is set.

Official Super Nintendo development manual on BEQ: Table C-15, Appendix C-8 of Book I

@@ Line 7: / Line 7: @@
 |'''Speed'''
 |+
-|relative
+|[[Program Counter Relative]]
 |F0
 |2 bytes
@@ 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: @@
 |}
-'''BEQ''' is an [[SPC700]] instruction that performs a branch when the zero flag is set.
+'''BEQ''' is an [[SPC700]] instruction that performs a branch when the [[zero flag]] is set.
 === See Also ===
 * [[BEQ]]
+* [[BNE (SPC700)]]
 === External Links ===
-* Official Super Nintendo development manual on BEQ: [https://archive.org/details/SNESDevManual/book1/page/n234 Appendix C-8 of Book I]
+* Official Super Nintendo development manual on BEQ: Table C-15,  [https://archive.org/details/SNESDevManual/book1/page/n233 Appendix C-8 of Book I]
 [[Category:ASM]]
 [[Category:SPC700]]
 [[Category:Branching Commands]]
+[[Category:Two-byte Instructions]]