CSC231 Exercises with conditional jumps

--D. Thiebaut (talk) 08:08, 9 November 2015 (EST)

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Exercises on Conditional Jumps

Finding the Smallest of 3 Ints

Find the minimum of 3 int variables a, b, and c.

Scanning an array

Find the largest element of a 1-dimensional array of integers.

Characters and lower/upper case conversion

Write the code necessary to transform a character from lower- to upper-case, if the character is a letter. The character should not be changed if it is not a letter.

Characters and lower/upper case conversion. Version 2

Use a boolean function that returns true or false depending on whether the character it receives is lowercase or not.

Long/short jumps

Conditional jumps can jump only +127 bytes down, -128 bytes up in the code. How can we code something like this:

                  cmp     eax,10
                  jl      there
                  ...
                  ...
         there:   ...

when the instruction at Label there is 1000 bytes away from the jl conditional jump?