prog.pas: In main program:
prog.pas:5: error: undeclared identifier `a' (first use in this routine)
prog.pas:5: error: (Each undeclared identifier is reported only once
prog.pas:5: error: for each routine it appears in.)
prog.pas:5: error: using `=' instead of `:=' in assignment
prog.pas:5: error: syntax error before `then'
prog.pas:5: error: missing `to' or `downto'
prog.pas:7: error: undeclared identifier `relay' (first use in this routine)
prog.pas:7: error: syntax error before `;'
prog.pas:7: error: missing `to' or `downto'
prog.pas:8: error: `for' loop bounds are of incompatible type
prog.pas:8: error: syntax error before `;'
prog.pas:8: error: missing `to' or `downto'