BNE (Super FX): Difference between revisions

Latest revision as of 08:15, 14 July 2024


Basic Info
Addressing Mode	Opcode	Length	ROM Speed	RAM Speed	Cache Speed
Program Counter Relative	08??	2 bytes	6 cycles	6 cycles	2 cycles


Flags Affected
B	ALT1	ALT2	O/V	S	CY	Z
.	.	.	.	.	.	.

BNE (Branch not equal) is a Super FX instruction that performs a conditional jump. The instruction after BNE is already in the pipeline and will run even if the branch occurs.

No flags are affected.

Syntax

BNE e

Example

Let the zero flag be clear. This instruction jumps the program backward 2 bytes:

 BNE $-2h

External Links

Official Nintendo documentation on BNE: paragraph 9.22 on page 2-9-28 of Book II
example: page 2-9-29, lbid.

@@ Line 1: / Line 1: @@
-{| class="wikitable" style="float:right;clear:right;width:40%"
+{| class="wikitable" style="float:right;clear:right;width:50%"
 !colspan="8"|Basic Info
 |+
+|'''Addressing Mode'''
 |'''Opcode'''
 |'''Length'''
@@ Line 8: / Line 9: @@
 |'''Cache Speed'''
 |+
+|[[Program Counter Relative]]
 |08??
 |2 bytes
@@ Line 18: / Line 20: @@
 !colspan="9"|Flags Affected
 |+
-|B
+|[[B Flag|B]]
 |[[ALT1]]
 |[[ALT2]]
 |[[O/V]]
-|S
+|[[Sign Flag|S]]
 |[[CY]]
-|Z
+|[[Zero Flag|Z]]
 |+
 |.
@@ Line 35: / Line 37: @@
 |}
-'''BNE''' (Branch not equal) is a [[Super FX]] instruction that performs a conditional jump.
+'''BNE''' (Branch not equal) is a [[Super FX]] instruction that performs a conditional jump.  The instruction after BNE is already in the pipeline and will run even if the branch occurs.
 No flags are affected.
+==== Syntax ====
+<pre>
+BNE e
+</pre>
+==== Example ====
+Let the zero flag be clear.  This instruction jumps the program backward 2 bytes:
+<pre>
+ BNE $-2h
+</pre>
 === See Also ===
@@ Line 51: / Line 64: @@
 [[Category:ASM]]
 [[Category:Two-byte Instructions]]
+[[Category:Instructions with Delay Slots]]