PA3040
Advanced Member level 3
![Advanced Member level 3](/styles/images/ranks/glevel3.gif)
Dear All,
Reference MCU is 16f877a
Please see picture
In this picture the locations A and B and C has relation ship. am I right?
I mean
ADDWF ia 6 bit OPCODE
00 0111 is the machine code after decode by MCU
Therefore
ADDWF = 00 0111
as per code list in INSTRUCTION SET in PIC 16f877a data sheet, I think it not needs six bit, I think can manage by four bits
am I right
![CODE.GIF CODE.GIF](https://www.edaboard.com/data/attachments/14/14276-421bd70848a073fb873870bdcb7160bd.jpg)
Reference MCU is 16f877a
Please see picture
In this picture the locations A and B and C has relation ship. am I right?
I mean
ADDWF ia 6 bit OPCODE
00 0111 is the machine code after decode by MCU
Therefore
ADDWF = 00 0111
as per code list in INSTRUCTION SET in PIC 16f877a data sheet, I think it not needs six bit, I think can manage by four bits
am I right
![CODE.GIF CODE.GIF](https://www.edaboard.com/data/attachments/14/14276-421bd70848a073fb873870bdcb7160bd.jpg)