I....... Wait for the user to press a key
II...... Clear the screen
III..... Font functions
IV...... Get the address of a handle
V....... Set/Get the APD value
I. Wait for user to press a key
When you want to wait for a key from the user, just use the following
It returns in d0 the internal code of the key pressed. Only this
register is modified.
Notice that it support the APD (Auto Power Down), and that it won't
work if interruptions are disabled.
II. Clear the screen
Two functions can be used to clear the screen :
- jsr api92::ClearScreen
It clear the screen, and redraw the status bar
- jsr api92::ZapScreen
The screen is completly cleared, totally blank
III. Font functions
- Font values
0 = small font
1 = medium font
2 = large font
- Set the font
To set the current font used, you have the function
You put in d0 the font to set ( 0, 1 or 2), and then you call the
function. It changes no register.
- Get the font
To get the font, just use the function :
It returns in d0 the current font used (0, 1 or 2), and changes no
IV. Get the address of a handle
To get the address of a handle, you have two possibilities : You
can use the macro giving with your compilator ( Fargo2,
DoorsOS, Teos...), but it takes quite a lot of memory.
That's why Api92 provides a function that you should use for size
optimization : it gets the address of the handle d0 and puts it in
V. Set/Get the APD value
The APD is the Auto Power Down. It is the timer after which the calculator
will automatically turn off.
- Set the APD:
The function :
Set the APD value to tha value of d0. Notice that d0 is in tick.
To convert seconds in ticks, you have to multiply your seconds by
- Get the APD :
The function :
get the current value of the APD. The returned value is put in d0
(in tick). To convert this value to seconds, you have to divide by