![](http://datasheet.mmic.net.cn/380000/-PD784928Y_datasheet_16744934/-PD784928Y_192.png)
192
CHAPTER 6 INSTRUCTION SET
(21) String instructions: MOVTBLW, MOVM, XCHM, MOVBK, XCHBK, CMPME, CMPMNE, CMPMC, CMPMNC,
CMPBKE, CMPBKNE, CMPBKC, CMPBKNC
Mnemonic
Operands
Bytes
Operation
Flags
S
Z AC P/V CY
MOVTBLW
!addr8, byte
4
(addr8 + 2)
←
(addr8), byte
←
byte – 1,
addr8
←
addr8 – 2 End if byte = 0
MOVM
[TDE +], A
2
(TDE)
←
A, TDE
←
TDE + 1, C
←
C – 1 End if C = 0
[TDE –], A
2
(TDE)
←
A, TDE
←
TDE – 1, C
←
C – 1 End if C = 0
XCHM
[TDE +], A
2
(TDE)
A, TDE
←
TDE + 1, C
←
C – 1 End if C = 0
[TDE –], A
2
(TDE)
A, TDE
←
TDE – 1, C
←
C – 1 End if C = 0
MOVBK
[TDE +], [WHL +]
2
(TDE)
←
(WHL), TDE
←
TDE + 1,
WHL
←
WHL + 1, C
←
C – 1 End if C = 0
[TDE –], [WHL –]
2
(TDE)
←
(WHL), TDE
←
TDE – 1,
WHL
←
WHL – 1, C
←
C – 1 End if C = 0
XCHBK
[TDE +], [WHL +]
2
(TDE)
(WHL), TDE
←
TDE + 1,
WHL
←
WHL + 1, C
←
C – 1 End if C = 0
[TDE –], [WHL –]
2
(TDE)
(WHL), TDE
←
TDE – 1,
WHL
←
WHL – 1, C
←
C – 1 End if C = 0
CMPME
[TDE +], A
2
(TDE) – A, TDE
←
TDE + 1, C
←
C – 1 End if C = 0 or Z = 0
×
×
×
V
×
[TDE –], A
2
(TDE) – A, TDE
←
TDE – 1, C
←
C – 1 End if C = 0 or Z = 0
×
×
×
V
×
CMPMNE
[TDE +], A
2
(TDE) – A, TDE
←
TDE + 1, C
←
C – 1 End if C = 0 or Z = 1
×
×
×
V
×
[TDE –], A
2
(TDE) – A, TDE
←
TDE – 1, C
←
C – 1 End if C = 0 or Z = 1
×
×
×
V
×
CMPMC
[TDE +], A
2
(TDE) – A, TDE
←
TDE + 1, C
←
C – 1 End if C = 0 or CY = 0
×
×
×
V
×
[TDE –], A
2
(TDE) – A, TDE
←
TDE – 1, C
←
C – 1 End if C = 0 or CY = 0
×
×
×
V
×
CMPMNC
[TDE +], A
2
(TDE) – A, TDE
←
TDE + 1, C
←
C – 1 End if C = 0 or CY = 1
×
×
×
V
×
[TDE –], A
2
(TDE) – A, TDE
←
TDE – 1, C
←
C – 1 End if C = 0 or CY = 1
×
×
×
V
×
CMPBKE
[TDE +], [WHL +]
2
(TDE) – (WHL), TDE
←
TDE + 1,
WHL
←
WHL + 1, C
←
C – 1 End if C = 0 or Z = 0
×
×
×
V
×
[TDE –], [WHL –]
2
(TDE) – (WHL), TDE
←
TDE – 1,
WHL
←
WHL – 1, C
←
C – 1 End if C = 0 or Z = 0
×
×
×
V
×
CMPBKNE
[TDE +], [WHL +]
2
(TDE) – (WHL), TDE
←
TDE + 1,
WHL
←
WHL + 1, C
←
C – 1 End if C = 0 or Z = 1
×
×
×
V
×
[TDE –], [WHL –]
2
(TDE) – (WHL), TDE
←
TDE – 1,
WHL
←
WHL – 1, C
←
C – 1 End if C = 0 or Z = 1
×
×
×
V
×
CMPBKC
[TDE +], [WHL +]
2
(TDE) – (WHL), TDE
←
TDE + 1,
WHL
←
WHL + 1, C
←
C – 1 End if C = 0 or CY = 0
×
×
×
V
×
[TDE –], [WHL –]
2
(TDE) – (WHL), TDE
←
TDE – 1,
WHL
←
WHL – 1, C
←
C – 1 End if C = 0 or CY = 0
×
×
×
V
×
CMPBKNC
[TDE +], [WHL +]
2
(TDE) – (WHL), TDE
←
TDE + 1,
WHL
←
WHL + 1, C
←
C – 1 End if C = 0 or CY = 1
×
×
×
V
×
[TDE –], [WHL –]
2
(TDE) – (WHL), TDE
←
TDE – 1,
WHL
←
WHL – 1, C
←
C – 1 End if C = 0 or CY = 1
×
×
×
V
×