forked from KolibriOS/kolibrios
160 lines
5.8 KiB
NASM
160 lines
5.8 KiB
NASM
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
; ;
|
|
; EXAMPLE APPLICATION ;
|
|
; ;
|
|
; Compile with FASM ;
|
|
; ;
|
|
;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;
|
|
|
|
format binary as "" ; Binary file format without extension
|
|
|
|
use32 ; Tell compiler to use 32 bit instructions
|
|
|
|
org 0 ; the base address of code, always 0x0
|
|
|
|
; The header
|
|
|
|
db 'MENUET01'
|
|
dd 1
|
|
dd START
|
|
dd I_END
|
|
dd MEM
|
|
dd STACKTOP
|
|
dd 0, 0
|
|
|
|
; The code area
|
|
|
|
include 'macros.inc'
|
|
|
|
START: ; start of execution
|
|
call draw_window ; draw the window
|
|
|
|
; After the window is drawn, it's practical to have the main loop.
|
|
; Events are distributed from here.
|
|
|
|
event_wait:
|
|
mov eax, 10 ; function 10 : wait until event
|
|
mcall ; event type is returned in eax
|
|
|
|
cmp eax, 1 ; Event redraw request ?
|
|
je red ; Expl.: there has been activity on screen and
|
|
; parts of the applications has to be redrawn.
|
|
|
|
cmp eax, 2 ; Event key in buffer ?
|
|
je key ; Expl.: User has pressed a key while the
|
|
; app is at the top of the window stack.
|
|
|
|
cmp eax, 3 ; Event button in buffer ?
|
|
je button ; Expl.: User has pressed one of the
|
|
; applications buttons.
|
|
|
|
jmp event_wait
|
|
|
|
; The next section reads the event and processes data.
|
|
|
|
red: ; Redraw event handler
|
|
call draw_window ; We call the window_draw function and
|
|
jmp event_wait ; jump back to event_wait
|
|
|
|
key: ; Keypress event handler
|
|
mov eax, 2 ; The key is returned in ah. The key must be
|
|
mcall ; read and cleared from the system queue.
|
|
jmp event_wait ; Just read the key, ignore it and jump to event_wait.
|
|
|
|
button: ; Buttonpress event handler
|
|
mov eax,17 ; The button number defined in window_draw
|
|
mcall ; is returned to ah.
|
|
|
|
cmp ah,1 ; button id=1 ?
|
|
jne noclose
|
|
mov eax,-1 ; Function -1 : close this program
|
|
mcall
|
|
|
|
noclose:
|
|
jmp event_wait ; This is for ignored events, useful at development
|
|
|
|
; *********************************************
|
|
; ****** WINDOW DEFINITIONS AND DRAW ********
|
|
; *********************************************
|
|
;
|
|
; The static window parts are drawn in this function. The window canvas can
|
|
; be accessed later from any parts of this code (thread) for displaying
|
|
; processes or recorded data, for example.
|
|
;
|
|
; The static parts *must* be placed within the fn 12 , ebx = 1 and ebx = 2.
|
|
|
|
draw_window:
|
|
mov eax, 12 ; function 12: tell os about windowdraw
|
|
mov ebx, 1 ; 1, start of draw
|
|
mcall
|
|
|
|
mov eax, 0 ; function 0 : define and draw window
|
|
mov ebx, 100 * 65536 + 300 ; [x start] *65536 + [x size]
|
|
mov ecx, 100 * 65536 + 120 ; [y start] *65536 + [y size]
|
|
mov edx, 0x14ffffff ; color of work area RRGGBB
|
|
; 0x02000000 = window type 4 (fixed size, skinned window)
|
|
mov esi, 0x808899ff ; color of grab bar RRGGBB
|
|
; 0x80000000 = color glide
|
|
mov edi, title
|
|
mcall
|
|
|
|
mov ebx, 25 * 65536 + 35 ; draw info text with function 4
|
|
mov ecx, 0x224466
|
|
mov edx, text
|
|
mov esi, 40
|
|
mov eax, 4
|
|
|
|
.newline: ; text from the DATA AREA
|
|
mcall
|
|
add ebx, 10
|
|
add edx, 40
|
|
cmp byte[edx], 0
|
|
jne .newline
|
|
|
|
mov eax, 12 ; function 12:tell os about windowdraw
|
|
mov ebx, 2 ; 2, end of draw
|
|
mcall
|
|
|
|
ret
|
|
|
|
; *********************************************
|
|
; ************* DATA AREA *****************
|
|
; *********************************************
|
|
;
|
|
; Data can be freely mixed with code to any parts of the image.
|
|
; Only the header information is required at the beginning of the image.
|
|
|
|
text db "It looks like you have just compiled "
|
|
db "your first program for KolibriOS. "
|
|
db " "
|
|
db "Congratulations! ", 0
|
|
|
|
title db "Example application", 0
|
|
|
|
I_END:
|
|
rb 4096
|
|
align 16
|
|
STACKTOP:
|
|
|
|
MEM:
|
|
|
|
; The area after I_END is free for use as the application memory,
|
|
; just avoid the stack.
|
|
;
|
|
; Application memory structure, according to the used header, 1 Mb.
|
|
;
|
|
; 0x00000 - Start of compiled image
|
|
; I_END - End of compiled image
|
|
;
|
|
; + Free for use in the application
|
|
;
|
|
; STACKTOP - Start of stack area - defined in the header
|
|
; STACKTOP-4096 - End of stack area
|
|
;
|
|
; + Free for use in the application
|
|
;
|
|
; MEM - End of freely useable memory - defined in the header
|
|
;
|
|
; All of the the areas can be modified within the application with a
|
|
; direct reference.
|
|
; For example, mov [STACKTOP-1],byte 1 moves a byte above the stack area. |