DBNZ (SPC700): Difference between revisions

Revision as of 16:13, 7 May 2023

DBNZ is an SPC700 instruction that decrements memory or the Y index register and then jumps if that value is nonzero.


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

@@ Line 1: / Line 1: @@
-'''DBNZ''' is an [[SPC700]] command that decrements memory.
+'''DBNZ''' is an [[SPC700]] instruction that decrements memory or the [[Y index register]] and then jumps if that value is nonzero.
+{| class="wikitable" style="float:right;clear:right;width:30%"
+!colspan="8"|Basic Info
+|+
+|'''Addressing Mode'''
+|'''Opcode'''
+|'''Length'''
+|'''Speed'''
+|+
+|
+|6E
+|3 bytes
+|5 or 7 cycles
+|+
+|
+|FE
+|2 bytes
+|4 or 6 cycles
+|}
+{| class="wikitable" style="float:right;clear:right;width:30%"
+!colspan="8"|Flags Clobbered
+|+
+|N
+|V
+|P
+|B
+|H
+|I
+|Z
+|C
+|+
+|.
+|.
+|.
+|.
+|.
+|.
+|.
+|.
+|}
 [[Category:ASM]]
 [[Category:SPC700]]
+[[Category:Branching Commands]]