;*****************************Tick
;C declaration: void Tick(int miniTicks);
;Output: null.
;Input:
;   miniTicks: The amount of mini ticks (0.055 seconds) to delay.
;Explanation: Delays the program for (miniTicks*0.055) seconds.
proc Tick
Clock equ es:6Ch
;Create a new stack frame.
push bp
mov bp, sp
;Save the state of the registers.
push ax
push cx
push es
;Wait for first change in timer
mov ax, 40h
mov es, ax
mov ax, [Clock]
Utility_Tick_FirstTick:
    cmp ax, [Clock]
je Utility_Tick_FirstTick
;Wait for (miniTicks) changes in the clock.
mov cx, [bp+4]
Utility_Tick_DelayLoop:
    mov ax, [Clock]
    Utility_Tick_clock_tick:
    cmp ax, [Clock]
    je Utility_Tick_clock_tick
loop Utility_Tick_DelayLoop
;Retrieve the old state of the registers.
pop es
pop cx
pop ax
;Delete the new stack frame.
pop bp
;Return to the calling part of the program and 'delete' the parameters.
retn 2
endp Tick
;*****************************Tick^