Table 2-8 Branching Instructions
Instruction
Size
Function
Bcc
—
Branches to a specified address if a specified condition is true. The
branching conditions are listed below.
Mnemonic
Description
Condition
BRA (BT)
Always (true)
Always
BRN (BF)
Never (false)
Never
BHI
High
C
∨
Z = 0
BLS
Low or same
C
∨
Z = 1
Bcc (BHS)
Carry clear (high or same)
C = 0
BCS (BLO)
Carry set (low)
C = 1
BNE
Not equal
Z = 0
BEQ
Equal
Z = 1
BVC
Overflow clear
V = 0
BVS
Overflow set
V = 1
BPL
Plus
N = 0
BMI
Minus
N = 1
BGE
Greater or equal
N
⊕
V = 0
BLT
Less than
N
⊕
V = 1
BGT
Greater than
Z
∨
(N
⊕
V) = 0
BLE
Less or equal
Z
∨
(N
⊕
V) = 1
JMP
—
Branches unconditionally to a specified address
BSR
—
Branches to a subroutine at a specified address
JSR
—
Branches to a subroutine at a specified address
RTS
—
Returns from a subroutine
35
www.DataSheet4U.com