mov ecx, DWORD PTR _a$[esp-4]       ; ecx = value of a
mov eax, DWORD PTR $T3853[esp-4]    ; eax = struct ptr
lea edx, DWORD PTR [ecx+1]          ; edx = a + 1
mov DWORD PTR [eax], edx            ; [struct ptr] = rt.a = a + 1
lea edx, DWORD PTR [ecx+2]          ; edx = a + 2
add ecx, 3                          ; ecx = a + 3
mov DWORD PTR [eax+4], edx          ; [struct ptr + 4] = rt.b = edx = a + 2
mov DWORD PTR [eax+8], ecx          ; [struct ptr + 8] = rt.c = ecx = a + 3
ret 0