z80:Directives:IF
From Learn @ Cemetech
If the expression evaluates to true (non zero) then the following block of code is assembled until another conditional statement is hit. If it evaluates to false (zero) then the following block of code is skipped until another conditional statement is hit.
Syntax
.if expression
Allowed inputs
Uses
See Also
[!-- Related directives --] elseif else endif ifdef