--------------------------------------------------------------------------HMCS404AC
Note) (XY)
and
(X)
have
the
meaning
as
follows:
(1)
The
instructions with (XY)
have
4
mnemonics
and
4 object
codes
for
each.
(example
of LAM (XY)
is
given
below.)
MNEMONIC y x FUNCTION
LAM
0
0
LAMX
0
:
1
X~SPX
LAMY
1
:
0
Y~SPY
LAMXY
1
:
1
X
~SPX.
Y
~SPY
(2)
The
instructions with (X)
have
2
mnemonics
and
2 object
codes
for
each.
(example
of LMAIY
(X)
is
given
below.)
MNEMONIC FUNCTION
LMAIY
LMAIYX
X~SPX
Table 26.
Arithmetic
Instruction
Z
OPERATION MNEMONIC
OPERATION
CODE
FUNCTION STATUS
CYCLE
Add Immediate
to
A AI i 1
01
000
b
i2
il
io
A+
i-A
OVF
1/1
Increment B
IB
0001001100
B+
1-B
NZ
1/1
Decrement B
DB
0011001
1 1 1
B-1-B
NB
1/1
Decimal Adjust
for
Addition DAA
0010100110
1/1
Decimal Adjust
for
Subtraction DAS
0010101010
1/1
Negate A
NEGA
0001100000
·A+1-A
1/1
Complement B COMB
0101000000
e-B
1/1
Rotate Right A with Carry
ROTR
0010100000
1/1
Rotate Left A with Carry
ROTL
0010100001
1/1
Set Carry
SEC
0011
1011
1 1
1-CA
1/1
Reset
Carry
REC
0011101100
O-CA
1/1
Test Carry
TC
0001
101111
CA
1/1
Add A to Memory AM
0000001000
M+A-A
OVF
1/1
Add A to Memory
AMD
d
~9J8~7
~6 ~s ~4
J3
~2
~1
~o
M+A-A
OVF
2/2
Add A to Memory with Carry
AMC
0000011000
M+A+CA-A
OVF
1/1
Add A to Memory with Carry AMCD d
~
J8~7~6~SJJ3~2~1
~o
M+A+CA-A
OVF
2/2
Subtract A from Memory with Carry SMC
0010011000
M-A-CA-A
NB
1/1
Subtract A from Memory with Carry SMCD
d
~9
Je
J7
~e ~5
J4
J3
~2
~1
~o
M-A-CA-A
NB
2/2
OR
A and B
OR
0101000100
AUB-A
1/1
AND Memory with A ANM
0010011100
AnM-A
NZ
1/1
AND Memory with A
ANMD d
~gJe~
~B~JJ1J2~'&
AnM-A
NZ
2/2
OR
Memory with A
ORM
0000001100
AUM-A
NZ
1/1
OR
Memory with A ORMD
d
~9JB~7~
~
&JJ2~1
&
AUM-A
NZ
2/2
EOR
Memory with A
EORM
0000011100
A~M-A
NZ
1/1
EOR
Memory with A
EORMD d
~9
~B
~7
~6~S
~4 ~3
J2
~1
~o
A~M-A
NZ
2/2
329
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