參數(shù)資料
型號: PIC16F83
廠商: Microchip Technology Inc.
英文描述: 8-Bit CMOS Flash/EEPROM Microcontollrs(每個I/O口有20mA吸收,25mA驅(qū)動,64字節(jié)數(shù)據(jù)EEPROM,2.0V的微控制器)
中文描述: 8位CMOS閃存/ EEPROM Microcontollrs(每個的I / O口有20mA的吸收,25mA電流驅(qū)動,64字節(jié)數(shù)據(jù)的EEPROM,2.0伏的微控制器)
文件頁數(shù): 65/120頁
文件大?。?/td> 764K
代理商: PIC16F83
1996 Microchip Technology Inc.
DS30430A-page 65
PIC16F8X
SUBLW
Subtract W from Literal
Syntax:
Operands:
Operation:
Status Affected:
Encoding:
Description:
[ label
0
k
255
k – (W)
→ (
W)
C, DC, Z
SUBLW k
11
110x
kkkk
kkkk
The W register is subtracted (2’s
complement method) from the
eight bit literal 'k'. The result is
placed in the W register.
1
1
Words:
Cycles:
Example 1:
SUBLW
Before Instruction
0x02
W
C
= 1
=
After Instruction
W
C
= 1
= 1; result is positive
Example 2:
Before Instruction
W
C
= 2
=
After Instruction
W
C
= 0
= 1; result is zero
Example 3:
Before Instruction
W
C
= 3
=
After Instruction
W
C
= FF
= 0; result is negative
SUBWF
Subtract W from f
Syntax:
Operands:
[ label
0
f
127
d
[0,1]
(f) – (W)
→ (
dest)
C, DC, Z
SUBWF f,d
Operation:
Status Affected:
Encoding:
Description:
00
0010
dfff
ffff
Subtract (2’s complement meth-
odize W register from register 'f'.
If 'd' is 0 the result is stored in
the W register. If 'd' is 1 the
result is stored back in register
'f'.
1
1
Words:
Cycles:
Example 1:
SUBWF
Before Instruction
REG1,
1
REG1 = 3
W
C
After Instruction
= 2
=
REG1 = 1
W
C
Before Instruction
= 2
= 1; result is positive
Example 2:
REG1 = 2
W
C
After Instruction
= 2
=
REG1 = 0
W
C
Before Instruction
= 2
= 1; result is zero
Example 3:
REG1 = 1
W
C
After Instruction
= 2
=
REG1 = FF
W
C
= 2
= 0; result is negative
相關(guān)PDF資料
PDF描述
PIC16F84 18-pin Flash/EEPROM 8-Bit Microcontrollers
PIC16F85 18/20 Pin, 8-Bit CMOS FLASH Microcontroller with Comparators and A/D Product Brief
PIC16F86 18/20 Pin, 8-Bit CMOS FLASH Microcontroller with Comparators and A/D Product Brief
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PIC16F83-04/P 制造商:Microchip Technology Inc 功能描述:IC 8-BIT FLASH MCU
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