How to make complex conditions in assembler?

Question

Programming

in C, this would look like this:

if(cmd=="a")
  getHelp();
else if(cmd=="b")
  openTextEditor();
else if(cmd=="c")
  reboot();

And how can I write on the assembler? (PS I use FASM)

Answer 1

cmp ax, 1
je :action1
cmp ax, 2
je :action2

;тут ребут

:action1:
тут вызов справки
jmp :done

:action2:
тут вызов редактора
jmp :done

:done
тут конец

Answer 2

If exactly a, b, c, and do not save every byte, then

cmp ax, 'a'
setb cl
cmp ax, 'c'
seta ch
or ch, cl
jne default
call [ax + jump_table - 'a']
default:
ret
jump_table dd getHelp, openTextEditor, reboot