CHAPTER 18 INSTRUCTION SET OVERVIEW
User’s Manual U18172EJ2V0UD
275
Flag
Mnemonic Operand Bytes Clocks
Operation
Z AC CY
rp, #word
3
6
rp
←
word
AX, saddrp
2
6
AX
←
(saddrp)
saddrp, AX
2
8
(saddrp)
←
AX
AX, rp
Note
1 4
AX
←
rp
MOVW
rp, AX
Note
1 4
rp
←
AX
XCHW AX,
rp
Note
1 8
AX
↔
rp
A, #byte
2
4
A, CY
←
A + byte
×
×
×
saddr, #byte
3
6
(saddr), CY
←
(saddr) + byte
×
×
×
A, r
2
4
A, CY
←
A + r
×
×
×
A, saddr
2
4
A, CY
←
A + (saddr)
×
×
×
A, !addr16
3
8
A, CY
←
A + (addr16)
×
×
×
A, [HL]
1
6
A, CY
←
A + (HL)
×
×
×
ADD
A, [HL + byte]
2
6
A, CY
←
A + (HL + byte)
×
×
×
A, #byte
2
4
A, CY
←
A + byte + CY
×
×
×
saddr, #byte
3
6
(saddr), CY
←
(saddr) + byte + CY
×
×
×
A, r
2
4
A, CY
←
A + r + CY
×
×
×
A, saddr
2
4
A, CY
←
A + (saddr) + CY
×
×
×
A, !addr16
3
8
A, CY
←
A + (addr16) + CY
×
×
×
A, [HL]
1
6
A, CY
←
A + (HL) + CY
×
×
×
ADDC
A, [HL + byte]
2
6
A, CY
←
A + (HL + byte) + CY
×
×
×
A, #byte
2
4
A, CY
←
A
−
byte
×
×
×
saddr, #byte
3
6
(saddr), CY
←
(saddr)
−
byte
×
×
×
A, r
2
4
A, CY
←
A
−
r
×
×
×
A, saddr
2
4
A, CY
←
A
−
(saddr)
×
×
×
A, !addr16
3
8
A, CY
←
A
−
(addr16)
×
×
×
A, [HL]
1
6
A, CY
←
A
−
(HL)
×
×
×
SUB
A, [HL + byte]
2
6
A, CY
←
A
−
(HL + byte)
×
×
×
Note
Only when rp = BC, DE, or HL.
Remark
One instruction clock cycle is one CPU clock cycle (f
CPU
) selected by the processor clock control register
(PCC).