CBNE (SPC700): Difference between revisions

Revision as of 03:10, 13 July 2023

CBNE is an SPC700 instruction that performs a comparison between the accumulator and a direct page value and then branches if they are not equal.


Basic Info
Addressing Mode	Opcode	Length	Speed
	2E	3 bytes	when condition is false: 5 cycles when condition is true: 7 cycles
	DE	3 bytes	when condition is false: 6 cycles when condition is true: 8 cycles


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

@@ Line 1: / Line 1: @@
 '''CBNE''' is an [[SPC700]] instruction that performs a comparison between the accumulator and a direct page value and then branches if they are not equal.
-{| class="wikitable" style="float:right;clear:right;width:30%"
+{| class="wikitable" style="float:right;clear:right;width:40%"
 !colspan="8"|Basic Info
 |+
@@ Line 12: / Line 12: @@
 |2E
 |3 bytes
-|5 or 7 cycles
+|when condition is false: 5 cycles
+when condition is true: 7 cycles
 |+
 |
 |DE
 |3 bytes
-|6 or 8 cycles
+|when condition is false: 6 cycles
+when condition is true: 8 cycles
 |}