What is the meaning of addressing mode?

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Addressing mode refers to the method used by a computer to access data in memory. In assembly language, specific statements define data types and operations. For example, "BYTE_VALUE DB 150" defines a byte value, while "WORD_VALUE DW 300" defines a word value. The command "ADD BYTE_VALUE, 65" adds an immediate operand of 65 to the byte value. The hexadecimal notation, as seen in "MOV AX, 45H," represents a value in base 16, which simplifies working with binary data. The hexadecimal value 45H equates to the decimal value 69, making the commands "MOV AX, 45H" and "MOV AX, 69" functionally identical in the computer's perspective, as both load the same value into the AX register.
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what is addressing mode? and what is the meaning of these following statements
BYTE_VALUE DB 150; A byte value is defined
WORD_VALUE DW 300; A word value is defined
ADD BYTE_VALUE,65;An immediate operand 65is added
MOV AX,45H
what is 45h?
 
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It's not an address, it's just a hexidecimal value. We use base 16 in computers a lot because it makes thinking about numbers in terms of bits easier. 45h = 69

These commands are exactly identical as far as the computer is concerned.
MOV AX, 45H
MOV AX, 69
 
newjerseyrunner said:
It's not an address, it's just a hexidecimal value. We use base 16 in computers a lot because it makes thinking about numbers in terms of bits easier. 45h = 69

These commands are exactly identical as far as the computer is concerned.
MOV AX, 45H
MOV AX, 69
 
thanks man
 

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