nuclear@1: #include "mouse.h"
nuclear@1: #include "inttypes.h"
nuclear@1: 
nuclear@1: #define INTR	0x33
nuclear@1: 
nuclear@1: #define QUERY	0
nuclear@1: #define SHOW	1
nuclear@1: #define HIDE	2
nuclear@1: #define READ	3
nuclear@1: #define WRITE	4
nuclear@7: #define PIXRATE	0xf
nuclear@1: 
nuclear@1: #define XLIM	7
nuclear@1: #define YLIM	8
nuclear@1: 
nuclear@1: int have_mouse(void)
nuclear@1: {
nuclear@7: 	uint16_t res = 0;
nuclear@7: 	_asm {
nuclear@7: 		mov eax, QUERY
nuclear@7: 		int INTR
nuclear@7: 		mov res, ax
nuclear@7: 	}
nuclear@7: 	return res;
nuclear@1: }
nuclear@1: 
nuclear@1: void show_mouse(int show)
nuclear@1: {
nuclear@7: 	uint16_t cmd = show ? SHOW : HIDE;
nuclear@7: 	_asm {
nuclear@7: 		mov ax, cmd
nuclear@7: 		int INTR
nuclear@7: 	}
nuclear@1: }
nuclear@1: 
nuclear@1: int read_mouse(int *xp, int *yp)
nuclear@1: {
nuclear@7: 	uint16_t x, y, state;
nuclear@7: 	_asm {
nuclear@7: 		mov eax, READ
nuclear@7: 		int INTR
nuclear@7: 		mov state, bx
nuclear@7: 		mov x, cx
nuclear@7: 		mov y, dx
nuclear@7: 	}
nuclear@1: 
nuclear@7: 	if(xp) *xp = x;
nuclear@7: 	if(yp) *yp = y;
nuclear@7: 	return state;
nuclear@1: }
nuclear@1: 
nuclear@1: void set_mouse(int x, int y)
nuclear@1: {
nuclear@7: 	_asm {
nuclear@7: 		mov eax, WRITE
nuclear@7: 		mov ecx, x
nuclear@7: 		mov edx, y
nuclear@7: 		int INTR
nuclear@7: 	}
nuclear@1: }
nuclear@1: 
nuclear@1: void set_mouse_limits(int xmin, int ymin, int xmax, int ymax)
nuclear@1: {
nuclear@7: 	_asm {
nuclear@7: 		mov eax, XLIM
nuclear@7: 		mov ecx, xmin
nuclear@7: 		mov edx, xmax
nuclear@7: 		int INTR
nuclear@7: 		mov eax, YLIM
nuclear@7: 		mov ecx, ymin
nuclear@7: 		mov edx, ymax
nuclear@7: 		int INTR
nuclear@7: 	}
nuclear@7: }
nuclear@1: 
nuclear@7: void set_mouse_rate(int xrate, int yrate)
nuclear@7: {
nuclear@7: 	_asm {
nuclear@7: 		mov ax, PIXRATE
nuclear@7: 		mov ecx, xrate
nuclear@7: 		mov edx, yrate
nuclear@7: 		int INTR
nuclear@7: 	}
nuclear@1: }
nuclear@7: 
nuclear@7: void set_mouse_mode(enum mouse_mode mode)
nuclear@7: {
nuclear@7: 	if(mode == MOUSE_GFX) {
nuclear@7: 		set_mouse_rate(1, 1);
nuclear@7: 	} else {
nuclear@7: 		set_mouse_rate(8, 16);
nuclear@7: 	}
nuclear@7: }