Hi everyone. I have a little problem. I have some versions of the same code I would like you to have a look at. The task is to display the amount of X's across the screen and the same amount of lines, that corresponding to the the key you press. eg if the key press is 2 then it will display XX XX I have got an idea of how to do it. But when I try and store the key presss in the variable at the start of the code after I get the keypress it stops my programming working probably. I have declared a variable called keyPress .byte 0 Here is one version of the code. Code: ; Initialise constants lowerBound .equ '1 upperBound .equ '9 count .equ '0 spaces .equ 54 ; ; Get keypressed from keyboard ldx #$FFFF ;keyboard wai ; ;Load the key pressed into AccA ldaa 0,x ; staa keyPressed clrb tab ; cmpa #lowerBound blt finish ; branch to finish if key press is less than lowerBound ; cmpa #upperBound bgt finish ; ldx #$FB00 ldaa #'X loop1 staa 0,x inx inc count1 decb cmpb #count bne loop1 ; loop2 ldab #spaces inx inc count1 cmpb count1 bne loop2 ; ; count1 .byte 0 ; to compare spaces keyPressed .byte 0 lineCount .byte 0 ; finish .end
