All registers are used, what should I do? Assembly language -


i'm making graphical calculator , using mouse choose numbers. i'm using windows xp

i'm using int 33h, requires ax=3 (to click) bx=1 (check if mouse clicked) cx=horizontal coordinates, dx=vertical coordinates.

i'm getting position of mouse using loop

mousel:  mov ax,03h  int 33h  cmp bx,1b  jne mousel

and check position 

check1:  cmp cx,200 jl  mousel   cmp cx,240   jg  check2   cmp dx,160   jl  mousel cmp dx,200 jg  check4 mov al,1     mov [si],al  <<i need counter here>> je  operation

i want 3 numbers, store them, , perform arithmetic operations on. doing wrong?

you try use pusha , popa

  mouselxxx:   pusha   mousel:   mov ax,03h   int 33h   cmp bx,1b   jne mousel   popa    check1:    cmp cx,200   jl mouselxxx    etc

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