"XORF" instruction in pic microcontroller

[khatus]

Hello guys i just started to learn assembly language for pic micrcontroller.in this text i think The line written twice
A B F
0 0 0
0 0 0
is superfluous. What do you think? Why it is written twice?

 

[betwixt]

I agree it isn't necessary, I suspect it was 'copy and paste' from earlier but there is no XORF instruction in any PIC I know of so there are other errors too.

Brian.

 

[KlausST]

Hi,

why posting megabytes of pictures while copy and past would be much more clear, less than 1% of file size, and more easy to reply?

1st line: shows the starting point.
2nd line: (read the text above) shows what happens when F --> B: Nothing happens when A = 0.
3rd line: But the output toggles when A = 1

Just strictly following the description.

Added:
I did a search for a "PIC instruction set manual" including the XORF instruction. Did not find any.
This makes me question: Is your source reliable? Better use documents provided by the manufacturer, they are more relaible than second source informations.

Klaus

 

[khatus]

Hi,

why posting megabytes of pictures while copy and past would be much more clear, less than 1% of file size, and more easy to reply?

1st line: shows the starting point.
2nd line: (read the text above) shows what happens when F --> B: Nothing happens when A = 0.
3rd line: But the output toggles when A = 1

Just strictly following the description.

Added:
I did a search for a "PIC instruction set manual" including the XORF instruction. Did not find any.
This makes me question: Is your source reliable? Better use documents provided by the manufacturer, they are more relaible than second source informations.

Klaus

I am following this document.

 

[KlausST]

Hi,

please answer two simple questions:
1) what exact PIC microcontroller do you decide to use?
2) does it support "XORF" instruction?

Klaus

 

[Kurenai_ryu]

is superfluous. What do you think? Why it is written twice?

I think its just the same example, if we follow that the output (F) is fed to input B starting with 0 0, the next step is still 0 0 0, once A gets a 1 it start toggling the output...

A B F
0 0 0
0 0 0
1 0 1
1 1 0
1 0 1
1 1 0
1 0 1
0 1 1
0 1 1
1 1 0
0 0 0
0 0 0