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IN STRUC TION S
Ac c u m u la t o r Bit Re la t iv e
Ad d r e s s in g m o d e :
F u n c tio n :
In s tr u c tio n s :
Ex a m p le :
When the bit 5 of the
Accumulator is cleared
Accumulator
Bit designation
1
0
Operand (F2
24
Accumulator Bit Relative
Specifies the address in a memory location where the
next Op-Code is located. The bit position is
designated by the high-order three bits of the Op-Code.
If the branch condition is satisfied, Operand and the
Program Counter are added. The result of this
addition is the address in the memory location.
When the branch condition is not satisfied, the next
instruction is executed.
BBC, BBS
Mnemonic
∆
∆
BBC
5,A,∗–12
bit 5
0
Memory
Address to be
*
–12
executed next
Op-code(B3
)
16
1 1
0
0
1 1
*
)
16
*
+2
Machine code
Decimal
When the bit 5 of the
Accumulator is set
Bit designation
Jump
1
Addressing mode
B3
F2
16
16
Accumulator
bit 5
1
Memory
Op-code(B3
)
16
0
1 1
0
0
1 1
*
Operand (F2
)
16
Address to be
*
+2
executed next
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