macro PROC xt {
  align 4
xt:    ; the code itself goes here...
}

macro ENDP xt {
}

PROC setmode ;( mode --)
    mov ebx,eax
    xor eax,eax
    mov al,bl
    int 10h
    ret
ENDP setmode

PROC plot ;( x y c --)
    mov ebx,[esi]    ; dx=y
    mov ecx,[esi+04] ; cx=x
    xor ebx,ebx      ; bx=page#
    mov ah,12        ; ah=Plot Pixel function
    int 10h          ; do it
    ret
ENDP plot

PROC CPortOut ;( c addr --)
    mov edx,eax
    mov eax,[esi]
    out dx,al
    ret
ENDP CPortOut

PROC CPortIn ;( addr -- c)
    mov edx,eax
    xor eax,eax
    in al,dx
    ret
ENDP CPortIn
    

: GetPalette ( c# -- r g b)
    $03C7 CPortOut        | --
    $03C9 CPortIn         | r
    $03C9 CPortIn         | r g
    $03C9 CPortIn ;       | r g b
    

CLI        ; clear interrupts
    

    mov ebx,eax
    xor eax,eax
    mov al,bl
    int 10h 
    

MasterOfAsm: What you wrote is complete nonsense. Windows DOES NOT disable interrupt flag, and disabling interrupt flag has nothing to do with calling interrupts with "int" instruction.

CLI       ; disable DOS interrupts
    

Quote:

MasterOfAsm: What you wrote is complete nonsense. Windows DOES NOT disable interrupt flag, and disabling interrupt flag has nothing to do with calling interrupts with "int" instruction.

You missed the point. 32-bit programming is way different than 16-bit DOS programming. Instead of using interrupts in 32-bit programming, you have a Application Programmers Interface to do most tasks, e.g., displaying a message box. So, calling DOS to do something when your in 32-bit programming is pretty useless since you have the Windows API to assist you.

2. I read somewhere in a PE program (showing how PE files were formatted from scratch) where it had the CLI instruction:

Possibly, I was mistaken to have thought that I meant ALL (hardware and software) interrupts are disabled. Only DOS services\functions\interrupts are disabled.

Then again, I'm only a clueless newbie