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lesson 5, functions and strings

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Carlos Fenollosa 2014-10-05 13:03:48 +02:00
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05-bootsector-functions-strings/README.md
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@ -59,10 +59,10 @@ Calling functions
As you may suppose, calling a function is just a jump to a label. As you may suppose, calling a function is just a jump to a label.
The tricky part are the parameters. There are two approaches to parameters: The tricky part are the parameters. There are two steps to working with parameters:
1. The programmer knows they share a specific register or memory address 1. The programmer knows they share a specific register or memory address
2. Write a bit more code and make it generic 2. Write a bit more code and make function calls generic and without side effects
Approach 1 is easy. Let's just agree that we will use `al` for the parameters. Approach 1 is easy. Let's just agree that we will use `al` for the parameters.