参数资料
型号: ST72121J4T1/XXX
厂商: STMICROELECTRONICS
元件分类: 微控制器/微处理器
英文描述: 8-BIT, MROM, 16 MHz, MICROCONTROLLER, PQFP44
封装: PLASTIC, TQFP-44
文件页数: 71/87页
文件大小: 1365K
代理商: ST72121J4T1/XXX
73/87
ST72121
INSTRUCTION GROUPS (Cont’d)
Mnemo
Description
Function/Example
Dst
Src
H
I
N
Z
C
ADC
Add with Carry
A =A+M+ C
A
M
H
N
Z
C
ADD
Addition
A =A+M
A
M
H
N
Z
C
AND
Logical And
A = A . M
A
M
N
Z
BCP
Bit compare A, Memory
tst (A . M)
A
M
N
Z
BRES
Bit Reset
bres Byte, #3
M
BSET
Bit Set
bset Byte, #3
M
BTJF
Jump if bit is false (0)
btjf Byte, #3, Jmp1
M
C
BTJT
Jump if bit is true (1)
btjt Byte, #3, Jmp1
M
C
CALL
Call subroutine
CALLR
Call subroutine relative
CLR
Clear
reg, M
0
1
CP
Arithmetic Compare
tst(Reg - M)
reg
M
N
Z
C
CPL
One Complement
A = FFH-A
reg, M
N
Z
1
DEC
Decrement
dec Y
reg, M
N
Z
HALT
Halt
0
IRET
Interrupt routine return
Pop CC, A, X, PC
H
I
N
Z
C
INC
Increment
inc X
reg, M
N
Z
JP
Absolute Jump
jp [TBL.w]
JRA
Jump relative always
JRT
Jump relative
JRF
Never jump
jrf *
JRIH
Jump if ext. interrupt = 1
JRIL
Jump if ext. interrupt = 0
JRH
Jump if H = 1
H = 1 ?
JRNH
JumpifH= 0
H =0?
JRM
Jump if I = 1
I = 1 ?
JRNM
JumpifI =0
I =0?
JRMI
Jump if N = 1 (minus)
N = 1 ?
JRPL
Jump if N = 0 (plus)
N = 0 ?
JREQ
JumpifZ =1(equal)
Z =1?
JRNE
JumpifZ =0(notequal)
Z =0?
JRC
Jump if C = 1
C = 1 ?
JRNC
JumpifC= 0
C =0?
JRULT
Jump if C = 1
Unsigned <
JRUGE
Jump if C = 0
Jmp if unsigned >=
JRUGT
Jump if (C + Z = 0)
Unsigned >
73
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