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Instruction Formats and Number of Execution States
Addressing
mode
Mnem.
PC relative
BRA (BT)
PC relative
BRN (BF)
PC relative
BHI
PC relative
BLS
PC relative
BCC (BHS)
PC relative
BCS (BLO)
PC relative
BNE
PC relative
BEQ
PC relative
BVC
PC relative
BVS
PC relative
BPL
PC relative
BMI
PC relative
BGE
PC relative
BLT
PC relative
BGT
PC relative
BLE
*
The branch address must be even.
46
Instruction code
Operands 1st byte
2nd byte
d:8
4
0
disp.
d:8
4
1
disp.
d:8
4
2
disp.
d:8
4
3
disp.
d:8
4
4
disp.
d:8
4
5
disp.
d:8
4
6
disp.
d:8
4
7
disp.
d:8
4
8
disp.
d:8
4
9
disp.
d:8
4
A
disp.
d:8
4
B
disp.
d:8
4
C
disp.
d:8
4
D
disp.
d:8
4
E
disp.
d:8
4
F
disp.
3rd byte 4th byte
No of states
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
4
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