21-2.md

Code: Utility.[h, c], ConsoleShell.[h, c]

Explanation

What does the code do?

1. Utility.c file contains kSleep function which stop running a task for a specified time.

2. ConsoleShell.c contains new command that test if threads work without problem

   • testthread command

3. ConsoleShell.c contains a command that prints string as in matrix movie

Error Note

showmatrix command did not work as intended

1. files

   • 02.Kernel64/Source/ConsoleShell.c

2. functions

   • kShowMatrix

3. description

   • I forgot to use iY variable to show matrix naturally.

   • Original code written by the book author also has this problem.

   • this video describes the problem