CHAPTER 21 INSTRUCTION SET
Preliminary User’s Manual U19014EJ1V0UD
479
Clocks Flag
Instruction
Group
Mnemonic Operands Bytes
Note 1
Note 2
Operation
Z AC CY
ADDW
AX, #word
3
6
−
AX, CY
←
AX + word
× × ×
SUBW
AX, #word
3
6
−
AX, CY
←
AX
−
word
× × ×
16-bit
operation
CMPW
AX, #word
3
6
−
AX
−
word
× × ×
MULU
X 2
16
−
AX
←
A
×
X
Multiply/
divide
DIVUW
C 2
25
−
AX (Quotient), C (Remainder)
←
AX
÷
C
r 1
2
−
r
←
r + 1
× ×
INC
saddr 2
4
6
(saddr)
←
(saddr) + 1
× ×
r 1
2
−
r
←
r
−
1
× ×
DEC
saddr 2
4
6
(saddr)
←
(saddr)
−
1
× ×
INCW
rp 1
4
−
rp
←
rp + 1
Increment/
decrement
DECW
rp 1
4
−
rp
←
rp
−
1
ROR
A, 1
1
2
−
(CY, A
7
←
A
0
, A
m
−
1
←
A
m
)
×
1 time
×
ROL
A, 1
1
2
−
(CY, A
0
←
A
7
, A
m + 1
←
A
m
)
×
1 time
×
RORC
A, 1
1
2
−
(CY
←
A
0
, A
7
←
CY, A
m
−
1
←
A
m
)
×
1 time
×
ROLC
A, 1
1
2
−
(CY
←
A
7
, A
0
←
CY, A
m + 1
←
A
m
)
×
1 time
×
ROR4
[HL] 2
10
12
A
3
−
0
←
(HL)
3
−
0
, (HL)
7
−
4
←
A
3
−
0
,
(HL)
3
−
0
←
(HL)
7
−
4
Rotate
ROL4
[HL] 2
10
12
A
3
−
0
←
(HL)
7
−
4
, (HL)
3
−
0
←
A
3
−
0
,
(HL)
7
−
4
←
(HL)
3
−
0
ADJBA
2
4
−
Decimal Adjust Accumulator after Addition
× × ×
BCD
adjustment
ADJBS
2
4
−
Decimal Adjust Accumulator after Subtract
× × ×
CY, saddr.bit
3
6
7
CY
←
(saddr.bit)
×
CY, sfr.bit
3
−
7 CY
←
sfr.bit
×
CY, A.bit
2
4
−
CY
←
A.bit
×
CY, PSW.bit
3
−
7 CY
←
PSW.bit
×
CY, [HL].bit
2
6
7
CY
←
(HL).bit
×
saddr.bit, CY
3
6
8
(saddr.bit)
←
CY
sfr.bit, CY
3
−
8 sfr.bit
←
CY
A.bit, CY
2
4
−
A.bit
←
CY
PSW.bit, CY
3
−
8 PSW.bit
←
CY
× ×
Bit
manipulate
MOV1
[HL].bit, CY
2
6
8
(HL).bit
←
CY
Notes 1.
When the internal high-speed RAM area is accessed or for an instruction with no data access
2.
When an area except the internal high-speed RAM area is accessed
Remarks 1.
One instruction clock cycle is one cycle of the CPU clock (f
CPU
) selected by the processor clock
control register (PCC).
2.
This clock cycle applies to the internal ROM program.
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