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bloom:

	mov	cx, 63680		; we average every pixel except the top row
	mov	di, 320			; we start at the 2nd row
	
next_avg:
	xor	ax, ax			; clear out our accumulator
	
	mov	al, es:[di]		; get the current pixel
	

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#include <stdio.h>

/** Forward declaration for our add function */
int add(int, int);

int main() {

   /* add some numbers */
   int x = add(5, 4);

tuttlem

global add

section .text

add:
   mov   eax, [esp+4]    ; get the 1st param
   mov   ecx, [esp+8]    ; get the 2nd param
   add   eax, ecx        ; add them together
                         ; leaving the return value in eax

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gcc -m32 -c -g add.c -o add.o
nasm -felf32 maths.asm -o maths.o
gcc -m32 add.o maths.o -o add

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$ gcc -g test.c -o test

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$ gdb test

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; copies data from one memory location to another
m2m MACRO M1, M2
	push M2
	pop  M1
ENDM

; syntactic sugar for returning a value
return MACRO arg
	mov eax, arg
	ret

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LOCAL wc	:WNDCLASSEX

szText	szClassName, "SimpleWindow32"

; fill out the WNDCLASSEX structure here
mov wc.cbSize,         sizeof WNDCLASSEX
mov wc.style,          CS_HREDRAW or CS_VREDRAW or CS_BYTEALIGNWINDOW
mov wc.lpfnWndProc,    offset WndProc      
mov wc.cbClsExtra,     NULL
mov wc.cbWndExtra,     NULL

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; create the window 
invoke CreateWindowEx, WS_EX_OVERLAPPEDWINDOW,
                       ADDR szClassName,
                       ADDR szDisplayName,
                       WS_OVERLAPPEDWINDOW,
                       CW_USEDEFAULT, CW_USEDEFAULT, 
                       CW_USEDEFAULT, CW_USEDEFAULT,
                       NULL, NULL, hInst, NULL

; save off the window handle

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WndProc PROC hWin  :DWORD,
	    uMsg   :DWORD,
	    wParam :DWORD,
	    lParam :DWORD

    .if uMsg == WM_CLOSE

    .elseif uMsg == WM_DESTROY
        invoke PostQuitMessage, NULL
        return 0