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CHAPTER 28 INSTRUCTION SET
User’s Manual U16228EJ2V0UD
461
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 + n + m A
3
0
←
(HL)
3
0
, (HL)
7
4
←
A
3
0
,
(HL)
3
0
←
(HL)
7
4
Rotate
ROL4
[HL]
2
10 12 + n + m 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 + n
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 + n + m (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.
3.
n is the number of waits when the external memory expansion area is read.
4.
m is the number of waits when the external memory expansion area is written.