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- {
- Here is just what you're looking for. I don't know if you have learned about
- "functions" yet, but it's what I'm giving to you. :-) A function is just a
- procedure which returns a variable (of the type you choose) that is set within
- the function before it terminates. Anyway, here goes...
- }
-
- function yesno(const s:string):boolean;
- var c:char;
- begin
- write(s);
- repeat
- asm
- xor ax,ax
- int 16h
- mov dl,al
- mov ax,6520h
- int 21h
- mov c,dl
- end;
- until c in ['Y','N'];
- writeln(c);
- yesno:=(c='Y');
- end;
-
- And now, here is an example of how you use it.
-
- begin
- if yesno('Put "HELLO" on the screen? (y/n) : ') then begin
- writeln('HELLO');
- end else begin
- writeln('Fine, then! Forget it.');
- end;
- end.
-