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BEQ: Difference between revisions

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(other cycle penalty)
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!colspan="9"|Flags Affected
!colspan="9"|Flags Affected
|+
|+
|N
|[[Negative Flag|N]]
|V
|[[Overflow Flag|V]]
|M
|[[M Flag|M]]
|X
|[[X Flag|X]]
|D
|[[Decimal Flag|D]]
|I
|[[I Flag|I]]
|Z
|[[Zero Flag|Z]]
|C
|[[Carry Flag|C]]
|+
|+
|.
|.

Revision as of 04:26, 27 November 2023

Basic Info
Addressing Mode Opcode Length Speed
relative F0 2 byte 2 cycles
Flags Affected
N V M X D I Z C
. . . . . . . .

BEQ (Branch if Equal) is a 65x instruction that performs a jump if the zero flag is set.

Cycle Penalties
  • BEQ takes an extra cycle if the branch is taken
  • BEQ takes another extra cycle if the branch taken crosses a page boundary in emulation mode

See Also

External Links