Type
Instruction
Branch
Bcc
instructions
JMP
BSR
JSR
RTS
54
*1
Size
Function
—
Branches to a specified address if a specified condition
is true. The branching conditions are listed below.
Mnemonic
BRA(BT)
BRN(BF)
BHI
BLS
BCC(BHS)
BCS(BLO)
BNE
BEQ
BVC
BVS
BPL
BMI
BGE
BLT
BGT
BLE
—
Branches unconditionally to a specified address.
—
Branches to a subroutine at a specified address.
—
Branches to a subroutine at a specified address.
—
Returns from a subroutine
Description
Always (true)
Never (false)
High
Low or same
Carry clear
(high or same)
Carry set (low)
Not equal
Equal
Overflow clear
Overflow set
Plus
Minus
Greater or equal
Less than
Greater than
Less or equal
Condition
Always
Never
C ∨ Z = 0
C ∨ Z = 1
C = 0
C = 1
Z = 0
Z = 1
V = 0
V = 1
N = 0
N = 1
N ⊕ V = 0
N ⊕ V = 1
Z∨(N ⊕ V) = 0
Z∨(N ⊕ V) = 1