org 100h cpu 8086 jmp WDH ;0=00111111 ;1=00000110 ;2=01011011 ;3=01001111 ;4=01100110 ;5=01101101 ;6=01111101 ;7=00000111 ;8=01111111 ;9=01101111 ;A=01110111 ;B=11111111 ;C=00111001 ;D=10111111 ;E=01111001 ;F=01110001 WDH: in ax, 0 out 90h, ax out 0, ax jmp WDH