// Several address corner cases.
// @ followed by whitespace or comments or underscores all behave like
// address 0x0 by the major simulators.


// this block will begin at address 0x0:
5 4 3 2 1

// this block will also begin at address 0x0
// @ followed by whitespace 
@ a b c

// this block will also begin at address 0x0
// @ followed by an underscore
@_
0 
9


00000003

// this block will also begin at address 0x0
// @ followed by a comment
@/* comment */2 4 6 8