Initially, ALIVECNT is 0x02.
Since it is decremented by 1 and becomes 0x01 in the subroutine, since the value obtained is not zero BNZ BAend instruction branches to BAend where RETURN is located and subroutine execution is complete.
What is hex notation?
The base (radix) of the numeral system known as hexadecimal notation is 16. employs 16 digits, as opposed to 10 in decimal notation or 2 in binary: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, A, B, C, D, E, and F.
Binary notation, which is challenging to understand and prone to error when handled by humans, is conveniently represented by programmers using this method.
Since 16 is a power of 2, the two notational systems can be simply converted into one another.
In contrast, because decimal numbers are in base 10 and not a power of 2, they are more challenging to convert into binary numbers.
Programmers utilize the hexadecimal numbering system to make the binary numbering system simpler.
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