Difference between revisions of "CSC231 Exercises with conditional jumps"
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Modify the program so that it modifies only characters between 'a' and 'z' included. | Modify the program so that it modifies only characters between 'a' and 'z' included. | ||
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+ | ==Characters and lower/upper case conversion. Version 2== | ||
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+ | Use a boolean function that returns true or false depending on whether the character it receives is lowercase or not. | ||
==Long/short jumps== | ==Long/short jumps== |
Revision as of 10:51, 17 November 2010
Exercises on Conditional Jumps
Contents
Finding the minimum
Find the minimum of 3 signed int variables a, b, and c
Loop until overflow
Print fibonacci numbers coded as unsigned words until the result overflows. Don't print erroneous numbers!
Scanning an array
Find the largest element of a 1-dimensional array of signed double-words.
Same question, but with unsigned double words.
Characters and lower/upper case conversion
The program makeUpper.asm transforms all characters in a string to uppercase, but will also transform other characters that are not letters.
Modify the program so that it modifies only characters between 'a' and 'z' included.
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?