VGA - Write
This commit is contained in:
parent
7c9ad48b19
commit
ddc4ef393c
9 changed files with 166 additions and 149 deletions
|
|
@ -37,7 +37,7 @@ The processor starts in Real Mode, addressing 1 MB of memory.
|
|||
The project separates the standard IBM BDA from its own variables to avoid conflicts with the VGA BIOS loaded at `0xC000`.
|
||||
|
||||
* **Standard BDA (`0040:0000`)**: Used mainly by the VGA BIOS (loaded via QEMU) to store video modes (`0x0049`) and column count (`0x004A`).
|
||||
* **Custom BDA (`0050:0000`)**: Defined by `BDA_CUSTOM_SEG`. Stores driver states:
|
||||
* **Custom BDA (`0050:0000`)**: Defined by `SEG_BDA_CUSTOM`. Stores driver states:
|
||||
* **Mouse**: Input buffer, status, coordinates, background buffer (for cursor).
|
||||
* **Gfx**: Text cursor position, attributes.
|
||||
* **GUI RAM**: Segment `0x0063` (Physical `0x00630`).
|
||||
|
|
@ -100,7 +100,7 @@ Le processeur démarre en mode réel, adressant 1 Mo de mémoire.
|
|||
Le projet sépare la BDA standard IBM de ses propres variables pour éviter les conflits avec le BIOS VGA chargé en `0xC000`.
|
||||
|
||||
* **BDA Standard (`0040:0000`)** : Utilisée principalement par le BIOS VGA (chargé via QEMU) pour stocker les modes vidéo (`0x0049`) et le nombre de colonnes (`0x004A`).
|
||||
* **Custom BDA (`0050:0000`)** : Définie par `BDA_CUSTOM_SEG`. Stocke l'état des drivers :
|
||||
* **Custom BDA (`0050:0000`)** : Définie par `SEG_BDA_CUSTOM`. Stocke l'état des drivers :
|
||||
* **Souris** : Buffer d'entrée, état, coordonnées, buffer de sauvegarde du fond (pour le curseur).
|
||||
* **Gfx** : Position du curseur texte, attributs.
|
||||
* **GUI RAM** : Segment `0x0063` (Physique `0x00630`).
|
||||
|
|
|
|||
|
|
@ -241,7 +241,7 @@ timer_isr:
|
|||
push ax
|
||||
|
||||
push fs
|
||||
mov ax,BDA_CUSTOM_SEG
|
||||
mov ax,SEG_BDA_CUSTOM
|
||||
mov fs,ax
|
||||
; exemple de fonctionnement:
|
||||
; inc byte [fs:BDA_TIMER]
|
||||
|
|
|
|||
|
|
@ -130,8 +130,9 @@ main_loop:
|
|||
push cs
|
||||
pop ds
|
||||
|
||||
GFX TXT_MODE, GFX_TXT_BLACK_TRANSPARENT
|
||||
GFX GOTOXY, 5,5
|
||||
GFX WRITE, str_hello
|
||||
GFX WRITE, cs, str_hello
|
||||
|
||||
|
||||
; Init du système GUI
|
||||
|
|
@ -140,20 +141,20 @@ main_loop:
|
|||
.loop:
|
||||
; call gui_process_all
|
||||
|
||||
mov dh, 1
|
||||
mov dl, 10
|
||||
call scr_gotoxy
|
||||
|
||||
mov ax, BDA_CUSTOM_SEG
|
||||
mov fs, ax
|
||||
mov ax, word [fs:PTR_MOUSE + mouse.x]
|
||||
call scr_puthex16
|
||||
|
||||
mov al, ' '
|
||||
call scr_putc
|
||||
|
||||
mov ax, word [fs:PTR_MOUSE + mouse.y]
|
||||
call scr_puthex16
|
||||
; mov dh, 1
|
||||
; mov dl, 10
|
||||
; call scr_gotoxy
|
||||
;
|
||||
; mov ax, SEG_BDA_CUSTOM
|
||||
; mov fs, ax
|
||||
; mov ax, word [fs:PTR_MOUSE + mouse.x]
|
||||
; call scr_puthex16
|
||||
;
|
||||
; mov al, ' '
|
||||
; call scr_putc
|
||||
;
|
||||
; mov ax, word [fs:PTR_MOUSE + mouse.y]
|
||||
; call scr_puthex16
|
||||
|
||||
nop
|
||||
jmp .loop
|
||||
|
|
@ -167,7 +168,7 @@ timer_isr:
|
|||
push ax
|
||||
|
||||
push fs
|
||||
mov ax,BDA_CUSTOM_SEG
|
||||
mov ax,SEG_BDA_CUSTOM
|
||||
mov fs,ax
|
||||
; exemple de fonctionnement:
|
||||
; inc byte [fs:BDA_TIMER]
|
||||
|
|
|
|||
|
|
@ -25,7 +25,7 @@
|
|||
;
|
||||
|
||||
%define BDA_SEGMENT 0x0040 ; segment BDA (historically)
|
||||
%define BDA_CUSTOM_SEG 0x0050 ; custom data (mouse, gfx cursor, etc..)
|
||||
%define SEG_BDA_CUSTOM 0x0050 ; custom data (mouse, gfx cursor, etc..)
|
||||
%define BDA_GUI_WIDGET 0x0070 ; Segment de données UI (Safe: après Stack, avant Heap)
|
||||
|
||||
%define PTR_MOUSE 0x0000
|
||||
|
|
@ -86,7 +86,7 @@ bda_setup:
|
|||
pusha
|
||||
push ds
|
||||
|
||||
mov ax, BDA_CUSTOM_SEG
|
||||
mov ax, SEG_BDA_CUSTOM
|
||||
mov es, ax
|
||||
|
||||
mov ax, 0x5F
|
||||
|
|
|
|||
|
|
@ -23,7 +23,7 @@
|
|||
;
|
||||
; graphics drivers pour carte video/mode CGA-Mono (640x200x2)
|
||||
;
|
||||
%define VIDEO_SEG 0xB800 ; ou 0xB000
|
||||
%define SEG_VIDEO 0xB800 ; ou 0xB000
|
||||
|
||||
%define GFX_MODE 0x06 ; MCGA HiRes (B/W)
|
||||
%define GFX_WIDTH 640
|
||||
|
|
@ -113,7 +113,7 @@ graph_driver:
|
|||
; ce mode est entrelacé, un bit/pixel, 8 pixels par octet
|
||||
; ------------------------------------------------------------
|
||||
cga_init:
|
||||
mov ax, BDA_CUSTOM_SEG
|
||||
mov ax, SEG_BDA_CUSTOM
|
||||
mov ds, ax
|
||||
|
||||
; init graphics mode
|
||||
|
|
@ -132,7 +132,7 @@ cga_none:
|
|||
; ------------------------------------------------------------
|
||||
; Calcule DI + AH=mask pour (CX=x, DX=y) en mode CGA 640x200
|
||||
;
|
||||
; Out: ES=VIDEO_SEG, DI=offset, AH=bitmask (0x80 >> (x&7))
|
||||
; Out: ES=SEG_VIDEO, DI=offset, AH=bitmask (0x80 >> (x&7))
|
||||
; ------------------------------------------------------------
|
||||
cga_calc_addr:
|
||||
; calcul de l'offset 'y':
|
||||
|
|
@ -180,7 +180,7 @@ cga_set_writemode:
|
|||
|
||||
push fs
|
||||
push ax
|
||||
mov ax, BDA_CUSTOM_SEG
|
||||
mov ax, SEG_BDA_CUSTOM
|
||||
mov fs,ax
|
||||
|
||||
mov ax, .mode
|
||||
|
|
@ -212,7 +212,7 @@ cga_set_charpos:
|
|||
pusha
|
||||
push fs
|
||||
|
||||
mov ax,BDA_CUSTOM_SEG
|
||||
mov ax,SEG_BDA_CUSTOM
|
||||
mov fs,ax
|
||||
|
||||
; store x,y en pixel
|
||||
|
|
@ -313,9 +313,9 @@ cga_putc:
|
|||
|
||||
call cga_mouse_hide ; Protection souris
|
||||
|
||||
mov bx, VIDEO_SEG
|
||||
mov bx, SEG_VIDEO
|
||||
mov es, bx
|
||||
mov bx, BDA_CUSTOM_SEG
|
||||
mov bx, SEG_BDA_CUSTOM
|
||||
mov fs, bx
|
||||
|
||||
mov ax, .car
|
||||
|
|
@ -441,7 +441,7 @@ cga_write:
|
|||
;
|
||||
; CX = x (0..639)
|
||||
; DX = y (0..199)
|
||||
; ES = Target Segment (usually VIDEO_SEG)
|
||||
; ES = Target Segment (usually SEG_VIDEO)
|
||||
; BL = color (0=black, !=0=white)
|
||||
; ------------------------------------------------------------
|
||||
; --- Définition des arguments ---
|
||||
|
|
@ -453,7 +453,7 @@ cga_putpixel:
|
|||
mov bp, sp
|
||||
pusha
|
||||
|
||||
mov ax, VIDEO_SEG
|
||||
mov ax, SEG_VIDEO
|
||||
mov es, ax
|
||||
|
||||
call cga_mouse_hide ; Protection souris
|
||||
|
|
@ -503,7 +503,7 @@ cga_getpixel:
|
|||
mov cx, .x
|
||||
mov dx, .y
|
||||
|
||||
mov ax, VIDEO_SEG
|
||||
mov ax, SEG_VIDEO
|
||||
mov es, ax
|
||||
call cga_calc_addr
|
||||
|
||||
|
|
@ -525,7 +525,7 @@ cga_getpixel:
|
|||
;
|
||||
; ------------------------------------------------------------
|
||||
cga_background:
|
||||
mov ax,VIDEO_SEG
|
||||
mov ax,SEG_VIDEO
|
||||
mov es,ax
|
||||
mov di,0x0000
|
||||
mov eax,0xaaaaaaaa
|
||||
|
|
@ -554,7 +554,7 @@ cga_line_vertical:
|
|||
push es
|
||||
|
||||
; Setup ES = Video Segment
|
||||
mov ax, VIDEO_SEG ; Utiliser AX plutot que SI pour setup ES
|
||||
mov ax, SEG_VIDEO ; Utiliser AX plutot que SI pour setup ES
|
||||
mov es, ax
|
||||
|
||||
call cga_mouse_hide
|
||||
|
|
@ -637,7 +637,7 @@ cga_line_horizontal:
|
|||
push es
|
||||
|
||||
; Setup ES = Video Segment
|
||||
mov ax, VIDEO_SEG
|
||||
mov ax, SEG_VIDEO
|
||||
mov es, ax
|
||||
|
||||
call cga_mouse_hide
|
||||
|
|
@ -790,7 +790,7 @@ cga_line:
|
|||
je .do_vert
|
||||
|
||||
; --- Bresenham ---
|
||||
mov ax, VIDEO_SEG
|
||||
mov ax, SEG_VIDEO
|
||||
mov es, ax
|
||||
|
||||
call cga_mouse_hide
|
||||
|
|
@ -1009,7 +1009,7 @@ cga_fill_rect:
|
|||
pusha
|
||||
push es
|
||||
|
||||
mov ax, VIDEO_SEG
|
||||
mov ax, SEG_VIDEO
|
||||
mov es, ax
|
||||
|
||||
; calcul de l'offset de départ du pattern
|
||||
|
|
@ -1268,7 +1268,7 @@ cga_mouse_hide:
|
|||
pusha ; Sauvegarder TOUS les registres 32-bits
|
||||
push ds
|
||||
|
||||
mov ax, BDA_CUSTOM_SEG
|
||||
mov ax, SEG_BDA_CUSTOM
|
||||
mov ds, ax
|
||||
|
||||
; Décrémenter le compteur
|
||||
|
|
@ -1296,7 +1296,7 @@ cga_mouse_show:
|
|||
pusha
|
||||
push ds
|
||||
|
||||
mov ax, BDA_CUSTOM_SEG
|
||||
mov ax, SEG_BDA_CUSTOM
|
||||
mov ds, ax
|
||||
|
||||
; Incrémenter le compteur
|
||||
|
|
@ -1328,7 +1328,7 @@ cga_mouse_cursor_move:
|
|||
push es
|
||||
|
||||
; move Data Segment
|
||||
mov ax, BDA_CUSTOM_SEG
|
||||
mov ax, SEG_BDA_CUSTOM
|
||||
mov ds, ax
|
||||
|
||||
cmp byte [PTR_MOUSE + mouse.cur_counter], 0
|
||||
|
|
@ -1339,7 +1339,7 @@ cga_mouse_cursor_move:
|
|||
|
||||
mov byte [PTR_MOUSE + mouse.cur_drawing],1
|
||||
|
||||
mov ax, VIDEO_SEG
|
||||
mov ax, SEG_VIDEO
|
||||
mov es, ax
|
||||
|
||||
call cga_cursor_restorebg
|
||||
|
|
@ -1364,7 +1364,7 @@ cga_cursor_savebg:
|
|||
jne .done
|
||||
|
||||
push es
|
||||
mov ax, VIDEO_SEG
|
||||
mov ax, SEG_VIDEO
|
||||
mov es, ax
|
||||
|
||||
; mémoriser position courante (utilisée pour restore)
|
||||
|
|
@ -1410,7 +1410,7 @@ cga_cursor_restorebg:
|
|||
je .done
|
||||
|
||||
push es
|
||||
mov ax, VIDEO_SEG
|
||||
mov ax, SEG_VIDEO
|
||||
mov es, ax
|
||||
|
||||
; restaurer depuis la dernière position sauvegardée
|
||||
|
|
@ -1456,9 +1456,9 @@ cga_cursor_draw:
|
|||
push gs
|
||||
|
||||
cld ; Sécurité : Direction avant
|
||||
mov ax, BDA_CUSTOM_SEG
|
||||
mov ax, SEG_BDA_CUSTOM
|
||||
mov ds, ax
|
||||
mov ax, VIDEO_SEG
|
||||
mov ax, SEG_VIDEO
|
||||
mov es, ax
|
||||
|
||||
; --- CLIPPING VERTICAL ---
|
||||
|
|
|
|||
|
|
@ -23,7 +23,7 @@
|
|||
;
|
||||
; graphics drivers pour carte video/mode CGA-Mono (640x200x2)
|
||||
;
|
||||
%define VIDEO_SEG 0A000h
|
||||
%define SEG_VIDEO 0A000h
|
||||
|
||||
%define GFX_MODE 0x12 ; VGA HiRes (640x480x16)
|
||||
%define GFX_WIDTH 640
|
||||
|
|
@ -181,7 +181,7 @@ vga_background:
|
|||
out dx, ax
|
||||
|
||||
; Initialisation mémoire
|
||||
mov ax, VIDEO_SEG
|
||||
mov ax, SEG_VIDEO
|
||||
mov es, ax
|
||||
xor edi, edi ; ES:EDI = Début mémoire vidéo
|
||||
movzx esi, si ; Nettoyer ESI (garder SI) pour l'adressage
|
||||
|
|
@ -239,7 +239,7 @@ vga_set_writemode:
|
|||
|
||||
push fs
|
||||
push ax
|
||||
mov ax, BDA_CUSTOM_SEG
|
||||
mov ax, SEG_BDA_CUSTOM
|
||||
mov fs,ax
|
||||
|
||||
mov ax, .mode
|
||||
|
|
@ -254,10 +254,10 @@ vga_set_writemode:
|
|||
|
||||
; ---------------------------------------------------------------------------
|
||||
; gfx_set_charpos (x,y)
|
||||
; In : CX = x (pixels), DX = y (pixels)
|
||||
; In : x (pixels), y (pixels)
|
||||
; Out: variables DS:GFX_CUR_*
|
||||
; Notes:
|
||||
; - calcule l'offset VRAM de la scanline y: base = (y&1?2000:0) + (y>>1)*80 + (x>>3)
|
||||
; - calcule l'offset VRAM de la scanline y: base = (y*80) + (x>>3)
|
||||
; - stocke aussi shift = x&7
|
||||
; ---------------------------------------------------------------------------
|
||||
; --- Définition des arguments ---
|
||||
|
|
@ -270,7 +270,7 @@ vga_set_charpos:
|
|||
pusha
|
||||
push fs
|
||||
|
||||
mov ax,BDA_CUSTOM_SEG
|
||||
mov ax,SEG_BDA_CUSTOM
|
||||
mov fs,ax
|
||||
|
||||
; store x,y en pixel
|
||||
|
|
@ -286,7 +286,7 @@ vga_set_charpos:
|
|||
|
||||
call vga_calc_addr
|
||||
|
||||
mov [fs:PTR_GFX + gfx.cur_offset], bx
|
||||
mov [fs:PTR_GFX + gfx.cur_offset], di
|
||||
pop fs
|
||||
|
||||
popa
|
||||
|
|
@ -325,13 +325,6 @@ get_glyph_offset:
|
|||
; - x non aligné (x&7 != 0)
|
||||
; - écrit sur 2 bytes (di et di+1) dans chaque banque
|
||||
; ---------------------------------------------------------------------------
|
||||
; convert al -> AX aligned with "cl"
|
||||
%macro ALIGN_BYTE 0
|
||||
mov ah,al
|
||||
xor al,al
|
||||
shr ax,cl
|
||||
xchg ah,al
|
||||
%endmacro
|
||||
|
||||
; --- Définition des arguments ---
|
||||
%define .car word [bp+4]
|
||||
|
|
@ -348,11 +341,30 @@ vga_putc:
|
|||
|
||||
call vga_mouse_hide ; Protection souris
|
||||
|
||||
mov bx, VIDEO_SEG
|
||||
mov dx, EGAVGA_CONTROLLER
|
||||
; Forcer le mode de remplacement (écrase la VRAM avec la donnée CPU)
|
||||
mov ax, 0x0003 ; Index 3: Data Rotate = 0, Function = REPLACE
|
||||
out dx, ax
|
||||
; S'assurer que le mode d'écriture est 0 (Standard)
|
||||
mov ax, 0x0005 ; index 1: Enable Set/Reset
|
||||
out dx, ax
|
||||
; Désactiver Set/Reset pour laisser passer AX
|
||||
mov ax, 0x0001 ; Index 1: Enable Set/Reset = 0
|
||||
out dx, ax
|
||||
|
||||
mov ax, 0xFF08 ; Bit Mask: 0xFF (on autorise l'écriture sur tous les pixels)
|
||||
out dx, ax
|
||||
|
||||
mov bx, SEG_VIDEO
|
||||
mov es, bx
|
||||
mov bx, BDA_CUSTOM_SEG
|
||||
mov bx, SEG_BDA_CUSTOM
|
||||
mov fs, bx
|
||||
|
||||
; Configuration VGA : Activer l'écriture sur les 4 plans pour le texte
|
||||
mov dx, VGA_SEQUENCER ; Sequencer
|
||||
mov ax, 0x0F02 ; Index 2 (Map Mask) = 0x0F (tous les plans)
|
||||
out dx, ax
|
||||
|
||||
mov ax, .car
|
||||
call get_glyph_offset
|
||||
|
||||
|
|
@ -362,82 +374,85 @@ vga_putc:
|
|||
mov cl, [fs:PTR_GFX + gfx.cur_shift]
|
||||
mov bx, GFX_OFFSET
|
||||
|
||||
mov .cpt, 4
|
||||
|
||||
mov .cpt, 8
|
||||
.row_loop:
|
||||
push di
|
||||
mov al, byte[es:di]
|
||||
|
||||
xor ax,ax
|
||||
mov al, [cs:si]
|
||||
inc si
|
||||
|
||||
; convert al -> AX aligned with "cl"
|
||||
mov ah,al
|
||||
xor al,al
|
||||
shr ax,cl
|
||||
xchg ah,al
|
||||
; ----- ALIGN_BYTE
|
||||
|
||||
; gestion du fond de texte
|
||||
test ch, 00000010b ; transparent background ?
|
||||
jz .skip_attribut ; oui
|
||||
jnz .draw_text_only ; oui
|
||||
|
||||
test ch, 00000001b ; background blanc ?
|
||||
je .bkg_black
|
||||
; --- Dessin du Fond (Opaque) ---
|
||||
mov bx, 0xFF00 ; Masque de 8 pixels pleins
|
||||
push cx
|
||||
shr bx, cl ; Aligner le masque de fond
|
||||
pop cx
|
||||
xchg bl, bh
|
||||
|
||||
; background = white
|
||||
mov ax, 0xFF00
|
||||
shr ax, cl
|
||||
xchg al, ah
|
||||
or [es:di], ax
|
||||
or [es:di+bx], ax
|
||||
jmp .skip_attribut
|
||||
test ch, 00000001b ; Couleur texte (pour déduire le fond)
|
||||
jnz .bg_black ; Si texte blanc, fond noir
|
||||
|
||||
.bkg_black: ; OK
|
||||
; background = black
|
||||
mov ax, 0xFF00
|
||||
shr ax, cl
|
||||
xchg al, ah
|
||||
not ax
|
||||
and [es:di], ax
|
||||
and [es:di+bx], ax
|
||||
; Fond Blanc (OR)
|
||||
or [es:di], bx ; Écrit sur 2 octets (di et di+1)
|
||||
jmp .draw_text_only
|
||||
.bg_black:
|
||||
not bx ; Inverser pour faire un masque AND
|
||||
and [es:di], bx
|
||||
|
||||
.skip_attribut:
|
||||
; ligne "paire" du gylphe
|
||||
xor ax, ax
|
||||
mov al, [cs:si]
|
||||
inc si
|
||||
ALIGN_BYTE
|
||||
mov dx, ax
|
||||
.draw_text_only:
|
||||
; --- Dessin du Texte ---
|
||||
test ch, 00000001b ; Bit 0: 1=White, 0=Black
|
||||
jz .text_black
|
||||
|
||||
; ligne "impaire" du gylphe
|
||||
mov al, [cs:si]
|
||||
inc si
|
||||
ALIGN_BYTE
|
||||
xchg ax, dx
|
||||
; Texte Blanc (OR)
|
||||
or [es:di], ax
|
||||
jmp .next_row
|
||||
|
||||
test ch,00000001b
|
||||
jz .black_text
|
||||
.text_black:
|
||||
; Texte Noir (AND NOT)
|
||||
not ax
|
||||
and [es:di], ax
|
||||
|
||||
; white text
|
||||
not ax
|
||||
not dx
|
||||
and [es:di], ax
|
||||
and [es:di+bx], dx
|
||||
.next_row:
|
||||
pop di ; Récupérer le DI du début de ligne
|
||||
add di, 80 ; Passer à la ligne VRAM suivante (linéaire)
|
||||
; dec .cpt
|
||||
jnz .row_loop
|
||||
|
||||
jmp .next
|
||||
|
||||
.black_text:
|
||||
or [es:di], ax
|
||||
or [es:di+bx], dx
|
||||
; Mise à jour des variables de position
|
||||
add word [fs:PTR_GFX + gfx.cur_x], 8
|
||||
; Recalculer l'offset pour le prochain caractère (gère le changement d'octet)
|
||||
mov cx, [fs:PTR_GFX + gfx.cur_x]
|
||||
mov dx, [fs:PTR_GFX + gfx.cur_y]
|
||||
call vga_calc_addr
|
||||
mov [fs:PTR_GFX + gfx.cur_offset], di
|
||||
; Note: calc_addr doit mettre le résultat dans DI ou BX selon ton usage
|
||||
|
||||
.next:
|
||||
; add di,CGA_STRIDE
|
||||
|
||||
dec .cpt
|
||||
jnz .row_loop
|
||||
|
||||
; Avancer curseur d'un caractère (8 pixels)
|
||||
inc word [fs:PTR_GFX + gfx.cur_offset]
|
||||
add word [fs:PTR_GFX + gfx.cur_x], 8
|
||||
|
||||
call vga_mouse_show ; Restauration souris
|
||||
|
||||
pop es
|
||||
pop fs
|
||||
popa
|
||||
leave
|
||||
ret
|
||||
call vga_mouse_show
|
||||
pop es
|
||||
pop fs
|
||||
popa
|
||||
leave
|
||||
ret
|
||||
%undef .car
|
||||
%undef .cpt
|
||||
|
||||
junk:
|
||||
|
||||
|
||||
;
|
||||
; write string from [DS:SI] to screen
|
||||
;
|
||||
|
|
@ -461,6 +476,7 @@ vga_write:
|
|||
je .done
|
||||
push ax
|
||||
call vga_putc
|
||||
pop ax
|
||||
jmp .loops
|
||||
|
||||
.done:
|
||||
|
|
@ -515,7 +531,7 @@ vga_putpixel:
|
|||
out dx, ax
|
||||
|
||||
; 4. Écriture (Nécessite une lecture préalable pour charger les Latches)
|
||||
mov ax, VIDEO_SEG
|
||||
mov ax, SEG_VIDEO
|
||||
mov es, ax
|
||||
mov al, [es:di] ; Lecture bidon pour charger les verrous (latches)
|
||||
mov [es:di], al ; L'écriture applique la couleur via le matériel
|
||||
|
|
@ -549,7 +565,7 @@ vga_mouse_hide:
|
|||
pusha ; Sauvegarder TOUS les registres 32-bits
|
||||
push ds
|
||||
|
||||
mov ax, BDA_CUSTOM_SEG
|
||||
mov ax, SEG_BDA_CUSTOM
|
||||
mov ds, ax
|
||||
|
||||
; Décrémenter le compteur
|
||||
|
|
@ -577,7 +593,7 @@ vga_mouse_show:
|
|||
pusha
|
||||
push ds
|
||||
|
||||
mov ax, BDA_CUSTOM_SEG
|
||||
mov ax, SEG_BDA_CUSTOM
|
||||
mov ds, ax
|
||||
|
||||
; Incrémenter le compteur
|
||||
|
|
@ -609,7 +625,7 @@ vga_mouse_cursor_move:
|
|||
push es
|
||||
|
||||
; BDA Data Segment
|
||||
mov ax, BDA_CUSTOM_SEG
|
||||
mov ax, SEG_BDA_CUSTOM
|
||||
mov ds, ax
|
||||
|
||||
cmp byte [PTR_MOUSE + mouse.cur_counter], 0
|
||||
|
|
@ -637,7 +653,7 @@ vga_cursor_savebg:
|
|||
jne .done
|
||||
|
||||
push es
|
||||
mov ax, VIDEO_SEG
|
||||
mov ax, SEG_VIDEO
|
||||
mov es, ax
|
||||
|
||||
; Calculer l'adresse de départ (y * 80 + x / 8)
|
||||
|
|
@ -689,14 +705,14 @@ vga_cursor_restorebg:
|
|||
je .done
|
||||
|
||||
push es
|
||||
mov ax, VIDEO_SEG
|
||||
mov ax, SEG_VIDEO
|
||||
mov es, ax
|
||||
|
||||
mov di, [PTR_MOUSE + mouse.cur_addr_start]
|
||||
lea si, [PTR_MOUSE + mouse.bkg_buffer]
|
||||
|
||||
; Sécurité : S'assurer que ES pointe bien vers la vidéo pour le restore
|
||||
mov ax, VIDEO_SEG
|
||||
mov ax, SEG_VIDEO
|
||||
mov es, ax
|
||||
|
||||
; Sécurité : Réinitialiser le contrôleur graphique pour l'écriture CPU brute
|
||||
|
|
@ -767,9 +783,9 @@ vga_cursor_draw:
|
|||
; Note: pushad sauvegarde déjà tous les registres généraux (EAX...EDI)
|
||||
|
||||
cld ; Sécurité : Direction avant
|
||||
mov ax, BDA_CUSTOM_SEG
|
||||
mov ax, SEG_BDA_CUSTOM
|
||||
mov ds, ax
|
||||
mov ax, VIDEO_SEG
|
||||
mov ax, SEG_VIDEO
|
||||
mov es, ax
|
||||
|
||||
; --- CLIPPING VERTICAL ---
|
||||
|
|
|
|||
|
|
@ -43,7 +43,7 @@
|
|||
;
|
||||
; ------------------------------------------------------------
|
||||
mouse_reset:
|
||||
mov ax, BDA_CUSTOM_SEG
|
||||
mov ax, SEG_BDA_CUSTOM
|
||||
mov fs,ax
|
||||
|
||||
; effacer les variables du drivers
|
||||
|
|
@ -154,7 +154,7 @@ mouse_init:
|
|||
;
|
||||
; ------------------------------------------------------------
|
||||
mouse_detect_packet_len:
|
||||
mov ax, BDA_CUSTOM_SEG
|
||||
mov ax, SEG_BDA_CUSTOM
|
||||
mov fs,ax
|
||||
|
||||
mov byte [fs:PTR_MOUSE + mouse.packetlen], 3
|
||||
|
|
@ -284,7 +284,7 @@ isr_mouse_handler:
|
|||
push ds
|
||||
|
||||
; use BDA segment
|
||||
mov ax,BDA_CUSTOM_SEG
|
||||
mov ax,SEG_BDA_CUSTOM
|
||||
mov ds,ax
|
||||
|
||||
; lire un octet depuis le contrôleur et le stocker dans le buffer
|
||||
|
|
|
|||
|
|
@ -23,10 +23,10 @@
|
|||
|
||||
;
|
||||
; text mod functions
|
||||
;
|
||||
;
|
||||
;
|
||||
|
||||
vid_seg dw VIDEO_SEG
|
||||
vid_seg dw SEG_VIDEO
|
||||
cursor_ofs dw 0
|
||||
txt_attr db VIDEO_ATTR
|
||||
|
||||
|
|
@ -118,11 +118,11 @@ txtmode_newline:
|
|||
jb .set
|
||||
xor ax, ax ; si dépasse, revient en haut (simple)
|
||||
.set:
|
||||
|
||||
|
||||
mov cx, 160 ; cursor_ofs = ligne * 160
|
||||
mul cx ; DX:AX = AX*CX ; ici AX suffit
|
||||
mov [cursor_ofs], ax
|
||||
|
||||
|
||||
pop dx
|
||||
pop ax
|
||||
ret
|
||||
|
|
|
|||
|
|
@ -21,7 +21,7 @@ gui_process_all:
|
|||
|
||||
; Charger l'état de la souris pour toute la passe
|
||||
push ds
|
||||
mov ax, BDA_CUSTOM_SEG
|
||||
mov ax, SEG_BDA_CUSTOM
|
||||
mov ds, ax
|
||||
mov bl, [PTR_MOUSE + mouse.status]
|
||||
pop ds
|
||||
|
|
@ -85,7 +85,7 @@ gui_update_logic:
|
|||
push ds
|
||||
push gs
|
||||
|
||||
mov ax, BDA_CUSTOM_SEG
|
||||
mov ax, SEG_BDA_CUSTOM
|
||||
mov ds, ax
|
||||
mov ax, BDA_GUI_WIDGET
|
||||
mov gs, ax
|
||||
|
|
@ -435,7 +435,7 @@ gui_logic_slider:
|
|||
; 4. Target Pos = MouseX - Anchor
|
||||
; On recharge MouseX depuis la BDA pour être sûr
|
||||
push ds
|
||||
mov ax, BDA_CUSTOM_SEG
|
||||
mov ax, SEG_BDA_CUSTOM
|
||||
mov ds, ax
|
||||
mov ax, [PTR_MOUSE + mouse.x]
|
||||
pop ds
|
||||
|
|
@ -463,7 +463,7 @@ gui_logic_slider:
|
|||
; 4. Target Pos = MouseY - Anchor
|
||||
; On recharge MouseY depuis la BDA pour être sûr
|
||||
push ds
|
||||
mov ax, BDA_CUSTOM_SEG
|
||||
mov ax, SEG_BDA_CUSTOM
|
||||
mov ds, ax
|
||||
mov ax, [PTR_MOUSE + mouse.y]
|
||||
pop ds
|
||||
|
|
|
|||
Loading…
Reference in a new issue