BMI: Difference between revisions

Revision as of 05:02, 25 November 2023


Basic Info
Addressing Mode	Opcode	Length	Speed
relative	30	2 byte	2 cycles*


Flags Affected
N	V	M	X	D	I	Z	C
.	.	.	.	.	.	.	.

BMI (Branch if Minus) is a 65x instruction that performs a jump if the negative flag is set.

BMI takes one extra cycle if the branch is taken
BMI takes another extra cycle if that branch crosses a page boundary in emulation mode.

@@ Line 35: / Line 35: @@
 |}
-'''BMI''' (Branch if Minus) is a 65x instruction that performs a jump if the [[negative flag]] is set.  BMI takes one additional cycle if the branch is taken, and another if that branch crosses a page boundary in [[emulation mode]].
+'''BMI''' (Branch if Minus) is a 65x instruction that performs a jump if the [[negative flag]] is set.
+===== Cycle Penalties =====
+* BMI takes one extra cycle if the branch is taken
+* BMI takes another extra cycle if that branch crosses a page boundary in [[emulation mode]].
 === See Also ===