Added lab1, lab2.
Completed lab3.
Fixed a bug in lab3.
Completed online1A.
Simplify the logic of lab3.
Fixed a syntax error in lab3.
Changed file mode.
Fixed non synthesizable construct.
Completed lab4.
Added special mode for lab4.
Solved synchronized problems in lab4.
Fixed a glitch in edge_detect of lab4.
Modified lab4 to synchronize edge input.
Added lab5.
Fixed syntax problem in lab5.
Fixed randcard in lab5.
Fixed a problem in lab5.
Modified the reset behaviour of lab5.
Fixed missing signal in lab5.
Completed simulation of lab6.