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Need help in decoding the assembly language of 68HC05P1/P9

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Hello,

I have got a piece of assembly code of Motorola 68HC05P1/P9 microcontroller.
I have found out the meaning of different instructions from the datasheet.
Now i need to find out the meaning of statements like:
1. IR_Input equ !5
2. T_500 equ $A2
3. Key0 equ %1111
4. ADD #!03
5. LDX #5
What do the #, ! and $ symbols convey in the satatements shown above.

Thanks and Regards,
Deepa
 

Re: Need help in decoding the assembly language of 68HC05P1/

$ denote hexadecimal number
% denote binary number
# denote immediate data (constant)
 
Re: Need help in decoding the assembly language of 68HC05P1/

Thanks. Then what does ! denote?
4. ADD #!03 denots what?
Plz help.
thanks and regards,
Deepa
 

Re: Need help in decoding the assembly language of 68HC05P1/

I don't know ! denote for what. I've check my documentation, but no information.
Do you know the name of the Assembler your source code? Or do you have Assembly Listing of that code?
 
Re: Need help in decoding the assembly language of 68HC05P1/

assembler: P&E Microcomputer Systems IASM05
assembly listing is not there.
Thanks and regards,
Deepa
 

Re: Need help in decoding the assembly language of 68HC05P1/

I spotted that ! means NOT (1's compliment)
Regards,
Deepa
 

$ denote hexadecimal number
! denote decimal number
% denote binary number
# denote immediate data (constant)
equ means address
 

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