.686P
.MODEL		FLAT, STDCALL
.STACK		4096
.DATA
MB_OK		EQU         1
str_format		DB          "X = %d", 0
str_buffer		DB          256 dup (0)
m_title			DB          "LR_2", 0
A			db          4;      a=4
B			db          2;      b=2
C1			db          3;      c=3
D			db	 -71;	d=-71
X			dd      	   ?

	extern MessageBoxA@16:NEAR
	extern wsprintfA:NEAR
.CODE
START:
movsx		    	eax, A
mov			ebx, eax
imul			eax, eax    ;eax = a^2
imul			ebx, eax    ;ebx = a^3

movsx 			ecx, C1
imul			ebx, ecx    ;ebx = a^3*c
imul			ecx, ecx

imul			ecx, ecx    ;ecx = c^4
movsx			edx, B

imul			edx, edx    ;edx = b^2
add			eax, edx    ;eax = a^2+b^2

movsx			edx, D
add			ecx, edx     ;ecx = c^4+d
cdq                       	  	      ;расширяем eax в edx:eax перед делением
idiv			ecx            ;eax = (a^2+b^2)/(c^4+d)

add			eax, ebx     ;eax = a^3*c + (a^2+b^2)/(c^4+d)
sub			eax, 190     ;eax = a^3*c + (a^2+b^2)/(c^4+d) - 190
push			eax

PUSH			OFFSET str_format
PUSH			OFFSET str_buffer
CALL			wsprintfA
ADD	    		esp, 12
PUSH			MB_OK
PUSH			OFFSET m_title
PUSH			OFFSET str_buffer
PUSH			0
CALL			MessageBoxA@16
RET