参数资料
型号: PIC12CE67
厂商: Microchip Technology Inc.
英文描述: 8-Pin, 8-Bit CMOS Microcontroller with A/D Converter and EEPROM Data Memory
中文描述: 8引脚,8位CMOS微控制器与A / D转换器和EEPROM数据存储器
文件页数: 28/44页
文件大小: 935K
代理商: PIC12CE67
Tips ‘n Tricks
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TIP #16 Optimizing Destinations
Destination bit determines W for F for result
Look at data movement and restructure
Careful use of the destination bits in instructions
can save program memory. Here, register A and
register B are summed and the result is put into the
A register. A destination option is available for
logic and arithmetic operations. In the first
example, the result of the ADDWF instruction is
placed in the working register. A MOVWF
instruction is used to move the result from the
working register to register A. In the second
example, the ADDWF instruction uses the
destination bit to place the result into the A register
saving an instruction.
Example: A + B
→ A
MOVF
ADDWF
MOVWF
MOVF
ADDWF
A,W
B,W
A
B,W
A,F
3 instructions
2 instructions
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相关代理商/技术参数
参数描述
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