Practice Problem 2.18 (solution page 149)
In Chapter 3, we will look at listings generated by a disassembler, a program that converts an executable program file back to a more readable ASCII form. These files contain many hexadecimal numbers, typically representing values in two’s- complement form. Being able to recognize these numbers and understand their significance (for example, whether they are negative or positive) is an important skill.
For the lines labeled A-I (on the right) in the following listing, convert the hexadecimal values (in 32-bit two’s-complement form) shown to the right of the instruction names (sub, mov, and add) into their decimal equivalents:
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