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HCS12 Datasheet(PDF) 198 Page - Freescale Semiconductor, Inc

Part # HCS12
Description  HCS12 Microcontrollers
PDF  452 Pages
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Manufacturer  FREESCALE [Freescale Semiconductor, Inc]
Direct Link  http://www.freescale.com
Logo FREESCALE - Freescale Semiconductor, Inc

HCS12 Datasheet(HTML) 198 Page - Freescale Semiconductor, Inc

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Instruction Glossary
S12CPUV2 Reference Manual, Rev. 4.0
198
Freescale Semiconductor
Operation:
If Z = 1, (PC) + $0004 + Rel
⇒ PC
Simple branch
Description:
Tests the Z status bit and branches if Z = 1.
See 3.8 Relative Addressing Mode for details of branch execution.
LBEQ
Long Branch if Equal
LBEQ
CCR Details:
S
X
HIN
Z
V
C
––––––––
Source Form
Address
Mode
Object Code
Access Detail
HCS12
M68HC12
LBEQ rel16
REL
18 27 qq rr
OPPP/OPO
(1)
1. OPPP/OPO indicates this instruction takes four cycles to refill the instruction queue if the branch is taken and three cycles
if the branch is not taken.
OPPP/OPO(1)
Branch
Complementary Branch
Test
Mnemonic
Opcode
Boolean
Test
Mnemonic
Opcode
Comment
r>m
LBGT
18 2E
Z
+ (N ⊕ V) = 0
r
≤m
LBLE
18 2F
Signed
r
≥m
LBGE
18 2C
N
⊕ V = 0
r<m
LBLT
18 2D
Signed
r=m
LBEQ
18 27
Z = 1
r
≠m
LBNE
18 26
Signed
r
≤m
LBLE
18 2F
Z
+ (N ⊕ V) = 1
r>m
LBGT
18 2E
Signed
r<m
LBLT
18 2D
N
⊕ V = 1
r
≥m
LBGE
18 2C
Signed
r>m
LBHI
18 22
C
+ Z = 0
r
≤m
LBLS
18 23
Unsigned
r
≥m
LBHS/LBCC
18 24
C = 0
r<m
LBLO/LBCS
18 25
Unsigned
r=m
LBEQ
18 27
Z = 1
r
≠m
LBNE
18 26
Unsigned
r
≤m
LBLS
18 23
C
+ Z = 1
r>m
LBHI
18 22
Unsigned
r<m
LBLO/LBCS
18 25
C = 1
r
≥m
LBHS/LBCC
18 24
Unsigned
Carry
LBCS
18 25
C = 1
No Carry
LBCC
18 24
Simple
Negative
LBMI
18 2B
N = 1
Plus
LBPL
18 2A
Simple
Overflow
LBVS
18 29
V = 1
No Overflow
LBVC
18 28
Simple
r=0
LBEQ
18 27
Z = 1
r
≠0
LBNE
18 26
Simple
Always
LBRA
18 20
—
Never
LBRN
18 21
Unconditional



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