Difference between revisions of "CSC231 Final Exam Fall 2017"
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* Make a copy of it under the name 231Lib2.asm | * Make a copy of it under the name 231Lib2.asm | ||
* Add a new function to 231Lib2.asm called _cowPrint() that gets a message in ecx, edx (similarly to _printString), and that prints a message with a cow, similarly to the bash command cowsay. See below for an example. | * Add a new function to 231Lib2.asm called _cowPrint() that gets a message in ecx, edx (similarly to _printString), and that prints a message with a cow, similarly to the bash command cowsay. See below for an example. | ||
| − | * The message can be at most 80 characters, and at least 1 character in length, and will be printed on one ine only. | + | * The message can be at most 80 characters, and at least 1 character in length, and will be printed on one ine only. |
| + | * Use the Linux '''cowsay''' command to see examples of outputs (/usr/games/cowsay your message). | ||
| + | <br /> | ||
::<source lang="text"> | ::<source lang="text"> | ||
cs231a@aurora ~ $ /usr/games/cowsay Hello CSC231 | cs231a@aurora ~ $ /usr/games/cowsay Hello CSC231 | ||
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< Hello CSC231 > | < Hello CSC231 > | ||
-------------- | -------------- | ||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
| − | |||
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\ ^__^ | \ ^__^ | ||
\ (oo)\_______ | \ (oo)\_______ | ||
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|| || | || || | ||
cs231a@aurora ~ $ | cs231a@aurora ~ $ | ||
| + | |||
| + | </source> | ||
| + | * You should get the same output as shown above if you do this in your test program: | ||
| + | <br /> | ||
| + | ::<source lang="asm"> | ||
| + | Hello db "Hello CSC231" | ||
| + | HelloLen equ $-Hello | ||
| + | |||
| + | |||
| + | mov ecx, Hello | ||
| + | mov edx, HelloLen | ||
| + | call _printCow | ||
| + | |||
</source> | </source> | ||
| + | <br /> | ||
* Your function should not modify any of the registers. | * Your function should not modify any of the registers. | ||
* You are allowed to add other functions to your 231Lib2.asm file. | * You are allowed to add other functions to your 231Lib2.asm file. | ||
