BEQ (SPC700): Difference between revisions

Latest revision as of 15:22, 14 August 2024


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. If the zero flag is clear, control simply falls through BEQ to the next instruction.

No flags are affected.

Syntax

BEQ rel

Where rel is a two's complement offset.

External Links

Official Super Nintendo development manual on BEQ: Table C-15, Appendix C-8 of Book I
anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L360

@@ 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.  If the zero flag is clear, control simply falls through BEQ to the next instruction.
 No flags are affected.
@@ Line 44: / Line 44: @@
 BEQ rel
 </pre>
+Where rel is a two's complement offset.
 === See Also ===
@@ Line 51: / Line 53: @@
 === External Links ===
 * Official Super Nintendo development manual on BEQ: Table C-15,  [https://archive.org/details/SNESDevManual/book1/page/n233 Appendix C-8 of Book I]
+* anomie: https://github.com/yupferris/TasmShiz/blob/master/spc700.txt#L360
 [[Category:ASM]]