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BTST (Bit TeST)
<Instruction Formats>
Addressing
mode
Register direct
Register indirect
Absolute address
Register direct
Register indirect
Absolute address
Mnem.
Operands
BTST
#xx:3, Rd
BTST
#xx:3,@Rd
BTST
#xx:3,@aa:8
BTST
Rn, Rd
BTST
Rn, @Rd
BTST
Rn, @aa:8
Instruction code
1st byte
2nd byte
7
3
0 IMM
rd
0 rd
0
7
C
7
E
abs
6
3
rn
rd
0 rd
0
7
C
7
E
abs
64
3rd byte
4th byte
0 IMM
7
3
0 IMM
7
3
rn
6
3
rn
6
3
BTST
No. of
states
2
0
6
0
6
2
0
6
0
6
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