; 32bit
; 6)    (c+4*b-123)/(1-a/2);
;       (2+4*1-123)/(1-5/2)=(2+4-123)/(1-2) = 117 (0x0075)
format PE console
use32
entry start

section '.data' data writeable readable
    a dd 5
    b dd 1
    c dd 2

section '.text' code executable readable

start:
    ; 4*b
    mov eax, [b]    ;eax=0000 0001
    mov ebx, 4    ;ebx=0000 0004
    imul ebx      ;eax=0000 0004 edx=0000 0000

    ; edx ignored

    ; c + 4*b
    mov ebx, [c]    ;ebx=0000 0002
    add eax, ebx  ;eax=0000 0006

    ; -123
    mov ebx, 123  ;ebx=0000 007B
    neg ebx       ;ebx=FFFF FF85

    ;  (c + 4*b) + (-123)
    add eax, ebx  ;eax=FFFF FF8B

    mov ebx, eax  ;ebx=FFFF FF8B

    ; a/2
    mov eax, [a]    ;eax=0000 0005
    xor edx, edx  ;edx=0000 0000
    mov ecx, 2    ;ecx=0000 0002
    idiv ecx      ;eax=0000 0002 edx=0000 0010
    ; -a/2
    neg eax       ;eax=FFFF FFFE

    ; (-a/2)++
    inc eax       ;eax=FFFF FFFF
    mov ecx, eax  ;ecx=FFFF FFFF

    mov eax, ebx  ;eax=FFFF FF8B

    ; ((c + 4*b) + (-123)) / ((-a/2)++)
    mov edx, 0xFFFFFFFF
                  ;edx=FFFF FFFF
    idiv ecx      ;eax=0000 0075 edx=0000 0000

keydown:
    mov ah, 1
    int 21h

exit:
    mov al, 0     ;no error
    mov ah, 0x4C
    int 21h