; mouse test

name “mouse”

org 100h

print macro x, y, attrib, sdat
LOCAL s_dcl, skip_dcl, s_dcl_end
pusha
mov dx, cs
mov es, dx
mov ah, 13h
mov al, 1
mov bh, 0
mov bl, attrib
mov cx, offset s_dcl_end – offset s_dcl
mov dl, x
mov dh, y
mov bp, offset s_dcl
int 10h
popa
jmp skip_dcl
s_dcl DB sdat
s_dcl_end DB 0
skip_dcl:
endm

clear_screen macro
pusha
mov ax, 0600h
mov bh, 0000_1111b
mov cx, 0
mov dh, 24
mov dl, 79
int 10h
popa
endm

print_space macro num
pusha
mov ah, 9
mov al, ‘ ‘
mov bl, 0000_1111b
mov cx, num
int 10h
popa
endm

jmp start

curX dw 0
curY dw 0
curB dw 0

start:
mov ax, 1003h ; disable blinking.
mov bx, 0
int 10h

; hide text cursor:
mov ch, 32
mov ah, 1
int 10h

; reset mouse and get its status:
mov ax, 0
int 33h
cmp ax, 0
jne ok
print 1,1,0010_1111b, ” mouse not found 🙁 “
jmp stop

ok:
clear_screen

print 7,7,0010_1011b,” note: in the emulator you may need to press and hold mouse buttons “
print 7,8,0010_1011b,” because mouse interrupts are not processed in real time. “
print 7,9,0010_1011b,” for a real test, click external->run from the menu. “
print 10,11,0010_1111b,” click/hold both buttons to exit… “

; display mouse cursor:
mov ax, 1
int 33h

check_mouse_buttons:
mov ax, 3
int 33h
cmp bx, 3 ; both buttons
je hide
cmp cx, curX
jne print_xy
cmp dx, curY
jne print_xy
cmp bx, curB
jne print_buttons

print_xy:
print 0,0,0000_1111b,”x=”
mov ax, cx
call print_ax
print_space 4
print 0,1,0000_1111b,”y=”
mov ax, dx
call print_ax
print_space 4
mov curX, cx
mov curY, dx
jmp check_mouse_buttons

print_buttons:
print 0,2,0000_1111b,”btn=”
mov ax, bx
call print_ax
print_space 4
mov curB, bx
jmp check_mouse_buttons

hide:
mov ax, 2 ; hide mouse cursor.
int 33h

clear_screen

print 1,1,1010_0000b,” hardware must be free! free the mice! “

stop:
; show box-shaped blinking text cursor:
mov ah, 1
mov ch, 0
mov cl, 8
int 10h

print 4,7,0000_1010b,” press any key…. “
mov ah, 0
int 16h

ret

print_ax proc
cmp ax, 0
jne print_ax_r
push ax
mov al, ‘0’
mov ah, 0eh
int 10h
pop ax
ret
print_ax_r:
pusha
mov dx, 0
cmp ax, 0
je pn_done
mov bx, 10
div bx
call print_ax_r
mov ax, dx
add al, 30h
mov ah, 0eh
int 10h
jmp pn_done
pn_done:
popa
ret
endp