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cc65/libsrc/mouse/mouse_box.s

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;
; Ullrich von Bassewitz, 2004-03-23
;
; void __fastcall__ mouse_box (int minx, int miny, int maxx, int maxy);
; /* Set the bounding box for the mouse pointer movement. The mouse X and Y
; * coordinates will never go outside the given box.
; * NOTE: The function does *not* check if the mouse is currently inside the
; * given margins. The proper way to use this function therefore is:
; *
; * - Hide the mouse
; * - Set the bounding box
; * - Place the mouse at the desired position
; * - Show the mouse again.
; *
; * NOTE2: When setting the box to something that is larger than the actual
; * screen, the positioning of the mouse cursor can fail. If such margins
; * are really what you want, you have to use your own cursor routines.
; */
;
.import incsp6
.include "mouse-kernel.inc"
.proc _mouse_box
jsr mouse_box ; Call the driver
jmp incsp6 ; Cleanup the stack
.endproc