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feat: revision des fichiers, ajouts commentaires, ménage & indentation

This commit is contained in:
Nicolas Hordé 2018-08-17 16:46:56 +02:00
parent 3aa3adb92c
commit 56da8273e8
35 changed files with 2825 additions and 3072 deletions
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7
boot/boot12.asm
View File

@ -59,9 +59,11 @@ Boot:
sti
mov si,Boot_Message
call ShowString
; Initialisation du lecteur de disquette
xor ax,ax
int 0x13
jc Boot_Error
; Calcul de la position de la FAT12
mov cx,[Reserved_Sectors]
add cx,[Sectors_Hidden]
adc cx,[Sectors_Hidden+2]
@ -69,6 +71,7 @@ Boot:
mov di,Fat_Buffer
push bx
push cx
; Lecture de la FAT en mémoire
readfat:
call ReadSector
jc Boot_Error
@ -92,6 +95,7 @@ readfat:
call Boot_Ok
mov si,Loading_Message
call ShowString
; Recherche du système dans les entrèes de répertoire
Find_System:
mov di,Buffer
call ReadSector
@ -118,6 +122,7 @@ Next_Root_Entrie:
inc cx
jmp Find_System
System_Found:
; Système trouvé
call Boot_Ok
mov si,Entre_Message
call ShowString
@ -129,6 +134,7 @@ System_Found:
push di
mov si,The_Dot
Resume_Loading:
; Chargement des secteur en mémoire à l'adresse 0080:0000
cmp cx,0x0FF0
jae Finish_Loading
push cx
@ -143,6 +149,7 @@ Resume_Loading:
jmp Resume_Loading
Finish_Loading:
call Boot_Ok
; Exécution du chargeur ELF
retf
;====================READSECTOR=======================

270
boot/boot16.asm
View File

@ -1,270 +0,0 @@
[BITS 16]
[ORG 0x7C00]
section .text
start:
jmp near Boot
Disk_ID db "COS2000A" ;Fabricant + n° de série Formatage
Sectors_Size dw 512 ;Nombre d'octets/secteur
Sectors_Per_Cluster db 4 ;Nombre de secteurs/cluster
Reserved_Sectors dw 1 ;Nombre de secteurs réservé
Fats_Number db 2 ;Nombre de copies de la FAT
Fits_Number dw 512 ;Taille du répertoire racine
Sectors_Per_Disk dw 2880 ;Nombre secteurs du volume si < 32 Mo
Media_Descriptor db 0xF8 ;Descripteur de média
Sectors_Per_Fat dw 207 ;Nombre secteurs/FAT
Sectors_Per_Track dw 18 ;Nombre secteurs/piste
Heads_Number dw 38 ;Nombre de tete de lecture/écriture
Sectors_Hidden dd 16 ;Nombre de secteurs cachés
Sectors_Per_Disk2 dd 39 ;Nombre secteurs du volume si > 32 Mo
Boot_Drive db 0x80 ;Lecteur de démarrage
Reserved db 0 ;NA (pour NT seulement)
Extended_Boot_ID db 0x29 ;Signature Boot étendu 29h
Serial_Number dd 0x01020304 ;N° de série
Disk_Name db "COS2000 " ;Nom de volume
Fat_Type db "FAT16 " ;Type de système de fichiers
;Cpu_Message db "CPU test",0
;Boot_Message db "Booting ",0
;Finding_Message db "System ",0
;Loading_Message db "Loading ",0
System_File db "SYSTEM SYS"
Is_Ok db "[ OK ]",0x0A,0x0D,0
Is_Failed db "[Failed]",0x0A,0x0D,"Press a key",0x0A,0x0D,0
The_Dot db '.',0
Boot_Error:
mov si,Is_Failed
call ShowString
mov ah,0
int 0x16
int 0x19
Boot_Ok:
; mov al,[Stage]
; cmp al,0
; jz No_Ok
mov si,Is_Ok
call ShowString
;No_Ok:
; xor ah,ah
; mov si,ax
; add si,Boot_Message ;Cpu_Message
; call ShowString
; add byte [Stage],0x09
ret
;
;Stage db 0
Boot:
push cs
push cs
pop es
pop ds
mov [Boot_Drive],dl
cli
mov ax,0x9000
mov ss,ax
mov sp,0xFFFF
sti
; call Detect_Cpu
; jc Boot_Error
; call Boot_Ok
xor ax,ax
int 0x13
; jc Boot_Error
xor eax,eax
add ax,[Reserved_Sectors]
add ecx,eax
mov di,Fat_Buffer
call ReadSector
jc Boot_Error
xor eax,eax
mov al,[Fats_Number]
mov bx,[Sectors_Per_Fat]
mul bx
add ecx,eax
mov ax,32
mul word [Fits_Number]
div word [Sectors_Size]
add eax,ecx
mov dword [Serial_Number],eax
xor dx,dx
; call Boot_Ok
Find_System:
mov di,Buffer
call ReadSector
jc near Boot_Error
xor bx,bx
Next_Root_Entrie:
cmp byte [di],0
je near Boot_Error
push di
push cx
mov si,System_File
mov cx,11
rep cmpsb
pop cx
pop di
je System_Found
add di,32
add bx,32
inc dx
cmp dx,[Fits_Number]
ja near Boot_Error
cmp bx,[Sectors_Size]
jb Next_Root_Entrie
inc ecx
jmp Find_System
System_Found:
xor ecx,ecx
mov cx,[di+26]
mov ax,0x0071
mov es,ax
push es
mov di,0x100
push di
; call Boot_Ok
mov si,The_Dot
Resume_Loading:
cmp cx,0x0FFF0
jae Finish_Loading
call ReadGroup
jc near Boot_Error
call ShowString
mov bx,cx
shl bx,1
mov cx,[bx+Fat_Buffer]
jmp Resume_Loading
Finish_Loading:
call Boot_Ok
retf
;====================READSECTOR=======================
;Lit le secteur logique LBA ECX et le met en es:di
;-> ECX (limité à 2^32 secteurs, soit 2 To avec secteur 512 octets)
;<- Flag Carry si erreur
;=====================================================
ReadSector:
pushad
mov ax, cx
ror ecx,16
mov dx,cx
rol ecx,16
cmp ecx,4128705
ja Extended_CHS
div word [Sectors_Per_Track]
inc dl
mov bl, dl
xor dx,dx
div word [Heads_Number]
mov dh, [Boot_Drive]
xchg dl, dh
mov cx, ax
xchg cl, ch
shl cl, 6
or cl, bl
mov bx, di
mov si, 4
mov al, 1
Read_Again:
mov ah, 2
int 0x13
jnc Read_Done
dec si
jnz Read_Again
Read_Done:
popad
ret
Extended_CHS:
mov si,ECHS_Block
mov byte [si+Sizes],0x10
mov byte [si+Reserve],0x01
mov byte [si+NumSectors],0x01
mov [si+Adressseg],es
mov [si+Adressoff],di
mov [si+SectorLow],ax
mov [si+SectorHigh],dx
mov di,4
mov dl,[Boot_Drive]
Read_AgainX:
mov ah, 42h
int 13h
jnc Read_Done
dec di
jnz Read_AgainX
;======================READGROUP======================
;lit le groupe cx en es:di et incr‚mente DI
;-> cx, es:di
;<- di, Flag Carry si erreur
;=====================================================
ReadGroup:
push ax
push cx
push dx
mov al,[Sectors_Per_Cluster]
sub cx,2
xor ah,ah
mul cx
mov cx,dx
shl ecx,16
mov cx,ax
add ecx,dword [Serial_Number]
mov al,[Sectors_Per_Cluster]
read:
call ReadSector
jc errors
inc ecx
add di,[Sectors_Size]
dec al
jnz read
clc
errors:
pop dx
pop cx
pop ax
ret
;======================SHOWSTR========================
;Affiche la chaine de caractère pointé par ds:si à l'écran
;-> DS, SI
;<- Flag Carry si erreur
;=====================================================
ShowString:
;push ax
;push bx
;push si
pusha
Next_Char:
lodsb
or al,al
jz End_Show
mov ah,0x0E
mov bx,0x07
int 0x10
jmp Next_Char
End_Show:
;pop si
;pop bx
;pop ax
popa
ret
times 510-($-$$) db ' '
dw 0xAA55
ECHS_Block equ $
Buffer equ $+26
Fat_Buffer equ $+26+512
section .bss
%include "echs.h"
;ECHS_Block resb 24
;Buffer resb 512
;Fat_Buffer resb 10000

81
boot/loader.asm
View File

@ -8,23 +8,23 @@
pop es
mov si,msg0
call showstr
;Projection de la FAT12 en mémoire
mov si,msg1
call showstr
call initfat
call ok
;Recherche du système
mov si,msg2
call showstr
mov si,System_File
call search
call ok
;Activation du BUS A20
mov si,msg3
call showstr
call EnableA20
call ok
;Chargement d'une GDT pour le mode FLAT REAL
mov si,msg4
call showstr
mov eax,cs
@ -40,7 +40,7 @@
mov [GDTR.Address],eax
lgdt [GDTR]
call ok
;Passage en mode FLAT REAL
mov si,msg5
call showstr
cli
@ -63,30 +63,31 @@ call ok
mov gs,bx
sti
call ok
;Chargement du noyau en 0x30000
mov si,msg6
call showstr
mov ebx,0x300000
call load
call ok
;Chargement du fichier PE
mov si,msg7
call showstr
call initpe
call ok
suite:
;suite:
;mov cx,suite
;call debug
mov si,msg8
call showstr
cli
;Passage en mode protégé
mov al,0x80
out 0x70,al
mov eax,cr0
or al,1
mov cr0,eax
;Exécution du code 32 bits
jmp SYS_CODE_SEL:GoPMode32
@ -258,7 +259,7 @@ errorelf:
;CX adresse
;->CX
;<-
;===========================================
;==========================
debug:
mov esi,info11
call showstr
@ -271,12 +272,11 @@ debug:
infini:
jmp infini
;==========COPY2MEM===========
;Copie de es:esi vers es:edi
;->ES:ESI ES:EDI CX
;<- Flag
;===========================================
;=============================
copy2mem:
push eax
push esi
@ -305,7 +305,7 @@ ret
;Remise à zero de es:edi
;->ES:EDI CX
;<- Flag
;===========================================
;=============================
zero2mem:
push eax
push esi
@ -341,7 +341,7 @@ symbol dd 0
;Affiche un nombre hexadécimal EDX de taille CX aprés le curseur
;-> EDX un entier, CX la taille
;<-
;===========================================
;============================
ShowHex:
push ax
push bx
@ -378,11 +378,11 @@ Hexaize:
ret
Tab db '0123456789ABCDEF'
;======================EOL========================
;============EOL=============
;Va en colonne CX
;->
;<- Flag Carry si erreur
;=====================================================
;============================
eol:
pusha
mov bp,cx
@ -396,12 +396,11 @@ eol:
popa
ret
;======================LOAD========================
;Charge le groupe en mémoire en ebx
;->
;============LOAD==============
;Charge le groupe en mémoire en EBX pour le groupe CX
;-> CX
;<- Flag Carry si erreur
;=====================================================
;==============================
load:
push ax
push ebx
@ -455,11 +454,11 @@ Finish_Loading:
pop ax
ret
;======================INITFAT========================
;===========INITFAT=============
;Initialise les variables de la fat
;->
;<- Flag Carry si erreur
;=====================================================
;===============================
initfat:
pusha
push ds
@ -500,11 +499,11 @@ readfat:
popa
ret
;======================SEARCH========================
;===========SEARCH============
;Recherche le groupe d'un fichier
;-> si nom du fichier
;<- Flag Carry si erreur CX
;=====================================================
;=============================
search:
push bx
push dx
@ -541,11 +540,11 @@ Found:
pop bx
ret
;======================SHOWRTN========================
;============SHOWRTN============
;Affiche la chaine de caractère return
;->
;<- Flag Carry si erreur
;=====================================================
;===============================
showrtn:
push ds
push ax
@ -559,11 +558,11 @@ showrtn:
pop ds
ret
;======================SHOWSTR========================
;==============SHOWSTR=============
;Affiche la chaine de caractère pointé par ds:esi à l'écran
;-> DS, SI
;-> DS, ESI
;<- Flag Carry si erreur
;=====================================================
;==================================
showstr:
pushad
xor bh,bh
@ -619,12 +618,11 @@ endshow:
popad
ret
;====================READSECTOR=======================
;==========READSECTOR============
;Lit le secteur logique LBA CX et le met en es:di
;-> CX (limité à 65536 secteurs, soit 32 Mo avec secteur 512 octets)
;<- Flag Carry si erreur
;=====================================================
;================================
ReadSector:
pusha
mov ax,cx
@ -653,11 +651,11 @@ Read_Done:
popa
ret
;===================NEXTFATGROUP======================
;============NEXTFATGROUP===========
;Renvoie en CX le groupe qui succède dans la FAT le groupe CX
;-> CX
;<-
;=====================================================
;<- CX
;===================================
NextFatGroup:
push bx
push dx
@ -688,11 +686,11 @@ Next_Group_Found:
pop bx
ret
;***********************EnableA20*******************************
;============EnableA20============
;->
;<-
;Ouvre l'autoroute A20
;***************************************************************
;=================================
EnableA20:
cli
call ClearKeybBuffer
@ -722,8 +720,12 @@ A20Enabled:
ret
;=================================
;CODE 32 bits mode protégé
;=================================
GoPMode32:
[BITS 32]
;Initialisation des selecteurs
mov ax,ALL_DATA_SEL
mov es,ax
mov gs,ax
@ -733,6 +735,7 @@ GoPMode32:
mov esp,0x3fffff
push KERNEL_SEL
push dword [cs:entriepoint]
;Execution du système
retf
section .data

5
boot/makefile
View File

@ -2,14 +2,11 @@ CC=nasm -f bin -o
all: makall
makall: boot12.bin boot16.bin loader.sys
makall: boot12.bin loader.sys
boot12.bin: boot12.asm
$(CC) $@ $^
boot16.bin: boot16.asm
$(CC) $@ $^
loader.sys: loader.asm
$(CC) $@ $^

1
final/makefile
View File

@ -3,6 +3,7 @@ all: cos2000.img
cos2000.img:
(dd if=/dev/zero of=cos2000.img count=2880 bs=512)
(mkfs.msdos -F 12 -n "COS2000" cos2000.img)
(mkdir ./mnt)
(fusefat cos2000.img ./mnt -o rw+)
(cp ../boot/loader.sys ./mnt/)
(cp ../system/system.sys ./mnt/;sync)

2
include/graph.h → include/2d.h
View File

@ -1 +1,3 @@
#include "types.h"
void line(u32 x1, u32 y1, u32 x2, u32 y2, u8 color);

1
include/3d.h
View File

@ -0,0 +1 @@
#include "types.h"

0
include/idt.h → include/interrupts.h
View File

6
include/port.h
View File

@ -1,6 +0,0 @@
#include "types.h"
void outreg(u16 port,u8 *src,u16 num);
void outregsame(u16 port,u8 *src,u16 num);
void inreg(u16 port,u8 *src,u16 num);
void inregsame(u16 port,u8 *src,u16 num);

4
include/vga.h
View File

@ -35,3 +35,7 @@ void enableblink();
void disableblink();
u8 (*getchar)(u16 coordx,u16 coordy);
u8 (*getattrib)(u16 coordx,u16 coordy);
void outreg(u16 port,u8 *src,u16 num);
void outregsame(u16 port,u8 *src,u16 num);
void inreg(u16 port,u8 *src,u16 num);
void inregsame(u16 port,u8 *src,u16 num);

51
lib/2d.c Executable file
View File

@ -0,0 +1,51 @@
#include "types.h"
#include "vga.h"
#include "video.h"
#include "2d.h"
#include "math.h"
/******************************************************************************/
/* Affiche une ligne entre les points spécifiés */
void line(u32 x1, u32 y1, u32 x2, u32 y2, u8 color)
{
s32 dx, dy, sdx, sdy;
u32 i, dxabs, dyabs, x, y, px, py;
dx = x2 - x1; /* distance horizontale de la line */
dy = y2 - y1; /* distance verticale de la line * */
dxabs = abs(dx);
dyabs = abs(dy);
sdx = sgn(dx);
sdy = sgn(dy);
x = dyabs >> 1;
y = dxabs >> 1;
px = x1;
py = y1;
writepxl(px, py, color);
if (dxabs >= dyabs) { /* la ligne est plus horizontale que verticale */
for (i = 0; i < dxabs; i++) {
y += dyabs;
if (y >= dxabs) {
y -= dxabs;
py += sdy;
}
px += sdx;
writepxl(px, py, color);
}
} else { /* la ligne est plus verticale que horizontale */
for (i = 0; i < dyabs; i++) {
x += dxabs;
if (x >= dyabs) {
x -= dyabs;
px += sdx;
}
py += sdy;
writepxl(px, py, color);
}
}
}

3
lib/3d.c
View File

@ -1,5 +1,6 @@
#include "3d.h"
#include "2d.h"
#include "vga.h"
#include "types.h"
#include "video.h"
#include "graph.h"

0
lib/8x16fnt.c → lib/VGA/8x16fnt.c
View File

0
lib/8x8fnt.c → lib/VGA/8x8fnt.c
View File

219
lib/VGA/modes.c Executable file
View File

@ -0,0 +1,219 @@
/* definition des registres de la carte VGA pour differents modes */
#define maxgraphmode 11
#define maxtextmode 5
static mode_def textmodes[maxtextmode] = {
/*40*25 16 couleurs mode 0x00 */
{
0x67,
0x03, 0x08, 0x03, 0x00, 0x02,
0x2D, 0x27, 0x28, 0x90, 0x2B, 0xA0, 0xBF, 0x1F, 0x00,
0x4F, 0x0D, 0x0E, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x8E, 0x8F, 0x14, 0x1F, 0x96, 0xB9, 0xA3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 0x38, 0x39, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F,
0x0C, 0x00, 0x0F, 0x08, 0x00,
45, 25, 4},
/*80*25 16 couleurs mode 0x01 */
{
0x67,
0x03, 0x00, 0x03, 0x00, 0x02,
0x5F, 0x4F, 0x50, 0x82, 0x55, 0x81, 0xBF, 0x1F, 0x00,
0x4F, 0x0D, 0x0E, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x0E, 0x8F, 0x28, 0x1F, 0x96, 0xB9, 0xA3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 0x38, 0x39, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F,
0x0C, 0x00, 0x0F, 0x08, 0x00,
80, 25, 4},
/*80*50 16 couleurs mode 0x02 */
{
0x63,
0x03, 0x01, 0x03, 0x05, 0x02,
0x5F, 0x4F, 0x50, 0x82, 0x55, 0x81, 0xBF, 0x1F, 0x00,
0x47, 0x06, 0x07, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x8E, 0x8F, 0x28, 0x1F, 0x96, 0xB9, 0xA3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 0x38, 0x39, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F,
0x0C, 0x00, 0x0F, 0x00, 0x00,
80, 50, 4},
/*100*50 16 couleurs mode 0x03 */
{
0x67,
0x03, 0x01, 0x03, 0x05, 0x02,
0x70, 0x63, 0x64, 0x85, 0x68, 0x84, 0xBF, 0x1F, 0x00,
0x47, 0x06, 0x07, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x8E, 0x8F, 0x32, 0x1F, 0x96, 0xB9, 0xA3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 0x38, 0x39, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F,
0x0C, 0x00, 0x0F, 0x00, 0x00,
100, 50, 4},
/*100*60 16 couleurs mode 0x04 */
{
0xA7,
0x03, 0x01, 0x03, 0x05, 0x02,
0x70, 0x63, 0x64, 0x85, 0x68, 0x84, 0xFF, 0x1F, 0x00,
0x47, 0x06, 0x07, 0x00, 0x00, 0x00, 0x00,
0xE7, 0x8E, 0xDF, 0x32, 0x1F, 0xDF, 0xE5, 0xA3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 0x38, 0x39, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F,
0x0C, 0x00, 0x0F, 0x00, 0x00,
100, 60, 4}
};
static mode_def graphmodes[maxgraphmode] = {
/*640*480 n&b mode 0x80 */
{
0xE3,
0x03, 0x01, 0x0F, 0x00, 0x06,
0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0x0B, 0x3E, 0x00,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xEA, 0x0C, 0xDF, 0x28, 0x00, 0xE7, 0x04, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x10, 0x11, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F,
0x01, 0x00, 0x0F, 0x00, 0x00,
80, 60, 1},
/*320*200 4 couleurs mode 0x81 */
{
0x63,
0x03, 0x09, 0x03, 0x00, 0x02,
0x2D, 0x27, 0x28, 0x90, 0x2B, 0x80, 0xBF, 0x1F, 0x00,
0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x0E, 0x8F, 0x14, 0x00, 0x96, 0xB9, 0xA3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x02, 0x00, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x10, 0x11, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F,
0x01, 0x00, 0x03, 0x00, 0x00,
40, 25,
},
/*640*480 16 couleurs mode 0x82 */
{
0xE3,
0x03, 0x01, 0x0F, 0x00, 0x06,
0x5F, 0x4F, 0x50, 0x82, 0x53, 0x9F, 0x0B, 0x3E, 0x00,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xE9, 0x8B, 0xDF, 0x28, 0x00, 0xE7, 0x04, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x10, 0x11, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F,
0x01, 0x00, 0x0F, 0x00, 0x00,
80, 60, 4},
/*720*480 16 couleurs mode 0x83 */
{
0xE7,
0x03, 0x01, 0x08, 0x00, 0x06,
0x6B, 0x59, 0x5A, 0x82, 0x60, 0x8D, 0x0B, 0x3E, 0x00,
0x40, 0x06, 0x07, 0x00, 0x00, 0x00, 0x00,
0xEA, 0x0C, 0xDF, 0x2D, 0x08, 0xE8, 0x05, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x10, 0x11, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F,
0x01, 0x00, 0x0F, 0x00, 0x00,
90, 60, 4},
/*800*600 16 couleurs mode 0x84 */
{
0xE7,
0x03, 0x01, 0x0F, 0x00, 0x06,
0x70, 0x63, 0x64, 0x92, 0x65, 0x82, 0x70, 0xF0, 0x00,
0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x5B, 0x8C, 0x57, 0x32, 0x00, 0x58, 0x70, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x10, 0x11, 0x3A, 0x3B,
0x3C, 0x3D, 0x3E, 0x3F,
0x01, 0x00, 0x0F, 0x00, 0x00,
100, 75, 4},
/*320*200 256 couleurs RAPIDE mode 0x85 */
{
0x63,
0x03, 0x01, 0x0F, 0x00, 0x0E,
0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0xBF, 0x1F, 0x00,
0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x0E, 0x8F, 0x28, 0x40, 0x96, 0xB9, 0xA3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x00, 0x0F, 0x00, 0x00,
40, 25, 8},
/*320*200 256 couleurs mode 0x86 */
{
0x63,
0x03, 0x01, 0x0F, 0x00, 0x06,
0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0xBF, 0x1F, 0x00,
0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x0E, 0x8F, 0x28, 0x00, 0x96, 0xB9, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x00, 0x0F, 0x00, 0x00,
40, 25, 8},
/*320*400 256 couleurs mode 0x87 */
{
0x63,
0x03, 0x01, 0x0F, 0x00, 0x06,
0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0xBF, 0x1F, 0x00,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x8E, 0x8F, 0x28, 0x00, 0x96, 0xB9, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x00, 0x0F, 0x00, 0x00,
40, 50, 8},
/*320*480 256 couleurs mode 0x88 */
{
0xE3,
0x03, 0x01, 0x0F, 0x00, 0x06,
0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0x0B, 0x3E, 0x00,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xEA, 0xAC, 0xDF, 0x28, 0x00, 0xE7, 0x06, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x00, 0x0F, 0x00, 0x00,
40, 60, 8},
/*360*480 256 couleurs mode 0x89 */
{
0xE7,
0x03, 0x01, 0x0F, 0x00, 0x06,
0x6B, 0x59, 0x5A, 0x8E, 0x5E, 0x8A, 0x0D, 0x3E, 0x00,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xEA, 0xAC, 0xDF, 0x2D, 0x00, 0xE7, 0x06, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x00, 0x0F, 0x00, 0x00,
45, 60, 8},
/*400*600 256 couleurs mode 0x8A */
{
0xE7,
0x03, 0x01, 0x0F, 0x00, 0x06,
0x74, 0x63, 0x64, 0x97, 0x68, 0x95, 0x86, 0xF0, 0x00,
0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x5B, 0x8D, 0x57, 0x32, 0x00, 0x60, 0x80, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B,
0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x00, 0x0F, 0x00, 0x00,
50, 75, 8}
};

111
lib/cpu.c
View File

@ -4,10 +4,9 @@
#include "memory.h"
#include "string.h"
/* Technologies supportées */
static u8 *msg[] =
{
static u8 *msg[] = {
"mmx",
"mmx2",
"sse",
@ -22,44 +21,45 @@ static u8 *msg[] =
static u8 space[] = " ";
/******************************************************************************/
/* Annule les FLAGs CPU */
bool cansetflag(u32 flag)
{
u32 r1, r2;
asm("pushfl\n"
"popl %0\n"
"movl %0, %1\n"
"xorl %2, %0\n"
"pushl %0\n"
"popfl\n"
"pushfl\n"
"popl %0\n"
"pushl %1\n"
"popfl\n"
: "=&r" (r1), "=&r" (r2)
: "ir" (flag)
);
asm("pushfl\n" "popl %0\n" "movl %0, %1\n" "xorl %2, %0\n" "pushl %0\n" "popfl\n" "pushfl\n" "popl %0\n" "pushl %1\n" "popfl\n": "=&r"(r1), "=&r"(r2):"ir"(flag));
return ((r1 ^ r2) & flag) != 0;
}
/******************************************************************************/
/* Lance l'instruction CPUID */
void cpuid(u32 op, u32 * eax, u32 * ebx, u32 * ecx, u32 * edx)
{
asm("cpuid": "=a"(*eax), "=b"(*ebx), "=c"(*ecx), "=d"(*edx): "a"(op):"cc");
}
/******************************************************************************/
/* Retourne les informations sur le CPU dans une structure cpuinfo */
u8 getcpuinfos(cpuinfo * proc)
{
u32 i, maxfunction, maxextended, unused, regeax, regebx, regecx, regedx;
bool *boolean;
if (!cansetflag (0x00040000)) return 1; /*386 processor - no cpuid*/
if (!cansetflag (0x00200000)) return 2; /*486 processor with no cpuid*/
if (!cansetflag(0x00040000))
return 1; /*386 processor - no cpuid */
if (!cansetflag(0x00200000))
return 2; /*486 processor with no cpuid */
cpuid(0, &maxfunction, &unused, &unused, &unused);
maxfunction &= 0xffff;
cpuid(0x80000000, &maxextended, &unused, &unused, &unused);
maxextended &= 0xffff;
if (maxfunction >= 1)
{
if (maxfunction >= 1) {
cpuid(1, &regeax, &regebx, &regecx, &regedx);
proc->stepping = (regeax & 0x0000000F);
proc->models = ((regeax >> 4) & 0x0000000F);
@ -81,20 +81,18 @@ if (!cansetflag (0x00200000)) return 2; /*486 processor with no cpuid*/
proc->htt = ((regedx >> 28) & 0x00000001);
}
if (maxextended >= 1)
{
if (maxextended >= 1) {
cpuid(0x80000001, &regeax, &regebx, &regecx, &regedx);
proc->mmx2 = ((regedx >> 22) & 0x00000001);
proc->apic = ((regedx >> 9) & 0x00000001);
proc->now3d = ((regedx >> 30) & 0x00000001);
proc->now3d2 = ((regedx >> 31) & 0x00000001);
}
if (maxextended >= 4)
{
if (maxextended >= 4) {
int i;
for(i=0;i<3;i++)
{
cpuid(0x80000002+i, &regeax, &regebx, &regecx, &regedx);
for (i = 0; i < 3; i++) {
cpuid(0x80000002 + i, &regeax, &regebx, &regecx,
&regedx);
memcpy(&regeax, &proc->detectedname[0 + i * 16], 4, 1);
memcpy(&regebx, &proc->detectedname[4 + i * 16], 4, 1);
memcpy(&regecx, &proc->detectedname[8 + i * 16], 4, 1);
@ -105,28 +103,28 @@ if (!cansetflag (0x00200000)) return 2; /*486 processor with no cpuid*/
i = 0;
for (i = 0; i < 10; i++)
if (*(boolean++)==1)
{
if (*(boolean++) == 1) {
strcat(msg[i], &proc->techs);
strcat(space, &proc->techs);
}
return 0;
}
/******************************************************************************/
/* Retourne un élément de la pile */
u32 viewstack(u32 number)
{
u32 stack = 0;
asm (
"movl %[a1],%%esi;"
"addl %%esp,%%esi;"
"movl (%%esi), %[a1] ;"
:[result] "=r" (stack)
:[a1] "r" (number)
:"%esi"
);
asm("movl %[a1],%%esi;" "addl %%esp,%%esi;" "movl (%%esi), %[a1] ;": [result] "=r"(stack): [a1] "r"(number):"%esi");
return stack;
}
/******************************************************************************/
/* Affiche les registres CPU */
void dump_regs()
{
u32 eax = 0;
@ -144,37 +142,20 @@ void dump_regs()
u16 gs = 0;
u16 ss = 0;
u32 flags = 0;
asm (
"movl %%eax, %[a1] ;"
"movl %%ebx, %[b1] ;"
"movl %%ecx, %[c1] ;"
"movl %%edx, %[d1] ;"
"movl %%esi, %[e1] ;"
"movl %%edi, %[f1] ;"
"movl %%esp, %[g1] ;"
"movl %%ebp, %[h1] ;"
"movw %%cs, %[i1] ;"
"movw %%ds, %[j1] ;"
"movw %%es, %[k1] ;"
"movw %%fs, %[l1] ;"
"movw %%gs, %[m1] ;"
"movw %%ss, %[n1] ;"
:
[a1] "=m" (eax), [b1] "=m" (ebx), [c1] "=m" (ecx), [d1] "=m" (edx), [e1] "=m" (esi), [f1] "=m" (edi),
[g1] "=m" (ebp), [h1] "=m" (esp), [i1] "=m" (cs), [j1] "=m" (ds), [k1] "=m" (es), [l1] "=m" (fs), [m1] "=m" (gs), [n1] "=m" (ss)
);
asm("movl %%eax, %[a1] ;" "movl %%ebx, %[b1] ;" "movl %%ecx, %[c1] ;" "movl %%edx, %[d1] ;" "movl %%esi, %[e1] ;" "movl %%edi, %[f1] ;" "movl %%esp, %[g1] ;" "movl %%ebp, %[h1] ;" "movw %%cs, %[i1] ;" "movw %%ds, %[j1] ;" "movw %%es, %[k1] ;" "movw %%fs, %[l1] ;" "movw %%gs, %[m1] ;" "movw %%ss, %[n1] ;":
[a1] "=m"(eax),[b1] "=m"(ebx),[c1] "=m"(ecx),[d1] "=m"(edx),[e1] "=m"(esi),
[f1] "=m"(edi),[g1] "=m"(ebp),[h1] "=m"(esp),[i1] "=m"(cs),[j1] "=m"(ds),
[k1] "=m"(es),[l1] "=m"(fs),[m1] "=m"(gs),[n1] "=m"(ss));
printf("eax=%x ebx=%x ecx=%x eax=%x\r\n", eax,ebx,ecx,edx);
printf("eax=%x ebx=%x ecx=%x eax=%x\r\n", eax, ebx,
ecx, edx);
printf("esi=%x edi=%x\r\n", esi, edi);
printf("cs=%x ds=%x es=%x fs=%x gs=%x\r\n", cs,ds,es,fs,gs);
printf("cs=%x ds=%x es=%x fs=%x gs=%x\r\n",
cs, ds, es, fs, gs);
printf("ss=%x esp=%x ebp=%x\r\n", ss, esp, ebp);
asm (
"pushf ;"
"pop %[f1] ;"
:
[f1] "=m" (flags)
);
asm("pushf ;" "pop %[f1] ;":
[f1] "=m"(flags));
printf("FLAGS");
@ -212,6 +193,4 @@ void dump_regs()
for (u8 i = 0; i < 25; i++)
printf("+%d\t\t%x\r\n", i, viewstack(i * 4));
}

58
lib/graph.c
View File

@ -1,58 +0,0 @@
#include "types.h"
#include "vga.h"
#include "video.h"
#include "graph.h"
#include "math.h"
/******************************************************************************/
/* Affiche une ligne entre les points spécifiés */
void line(u32 x1, u32 y1, u32 x2, u32 y2, u8 color)
{
s32 dx,dy,sdx,sdy;
u32 i,dxabs,dyabs,x,y,px,py;
dx=x2-x1; /* distance horizontale de la line */
dy=y2-y1; /* distance verticale de la line **/
dxabs=abs(dx);
dyabs=abs(dy);
sdx=sgn(dx);
sdy=sgn(dy);
x=dyabs>>1;
y=dxabs>>1;
px=x1;
py=y1;
writepxl(px,py,color);
if (dxabs>=dyabs) /* la ligne est plus horizontale que verticale */
{
for(i=0;i<dxabs;i++)
{
y+=dyabs;
if (y>=dxabs)
{
y-=dxabs;
py+=sdy;
}
px+=sdx;
writepxl(px,py,color);
}
}
else /* la ligne est plus verticale que horizontale */
{
for(i=0;i<dyabs;i++)
{
x+=dxabs;
if (x>=dyabs)
{
x-=dyabs;
px+=sdx;
}
py+=sdy;
writepxl(px,py,color);
}
}
}

511
lib/idt.c
View File

@ -1,511 +0,0 @@
#include "idt.h"
#include "types.h"
#include "asm.h"
#include "memory.h"
#include "video.h"
/* registre idt */
static struct dtr idtreg;
/* table de IDT */
static idtdes idt[256];
void initpic(void)
{
/* MASTER */
/* Initialisation de ICW1 */
outb(0x20,0x11);
nop();
/* Initialisation de ICW2 - vecteur de depart = 32 */
outb(0x21,0x20);
nop();
/* Initialisation de ICW3 */
outb(0x21,0x04);
nop();
/* Initialisation de ICW4 */
outb(0x21,0x01);
nop();
/* masquage des interruptions */
outb(0x21,0xFF);
nop();
/* SLAVE */
/* Initialisation de ICW1 */
outb(0xA0,0x11);
nop();
/* Initialisation de ICW2 - vecteur de depart = 96 */
outb(0xA1,0x60);
nop();
/* Initialisation de ICW3 */
outb(0xA1,0x02);
nop();
/* Initialisation de ICW4 */
outb(0xA1,0x01);
nop();
/* masquage des interruptions */
outb(0xA1,0xFF);
nop();
/* Demasquage des irqs sauf clavier
outb(0x21,0xFD);
nop();
*/
}
void enableirq(u8 irq)
{
u16 port;
cli();
port = (((irq & 0x08) << 4) + 0x21);
outb(port,inb(port) & ~(1 << (irq & 7)));
sti();
}
void disableirq(u8 irq)
{
u16 port;
cli();
port = (((irq & 0x08) << 4) + 0x21);
outb(port,inb(port) | (1 << (irq & 7)));
sti();
}
void makeidtdes(u32 offset, u16 select, u16 type, idtdes* desc)
{
desc->offset0_15 = (offset & 0xffff);
desc->select = select;
desc->type = type;
desc->offset16_31 = (offset & 0xffff0000) >> 16;
return;
}
void setidt(u32 offset, u16 select, u16 type,u16 index)
{
cli();
idtdes *desc;
desc=idtreg.base;
desc[index].offset0_15 = (offset & 0xffff);
desc[index].select = select;
desc[index].type = type;
desc[index].offset16_31 = (offset & 0xffff0000) >> 16;
sti();
}
void putidt(u32 offset, u16 select, u16 type,u16 index)
{
idtdes temp;
makeidtdes(offset,select,type,&temp);
idt[index]=temp;
}
void cpuerror(const u8 *src)
{
print("\033[31m***** ERREUR CPU ****\r\n -");
print(src);
dump_regs();
while(1)
{
nop();
}
}
void interruption()
{
cli();
pushf();
pushad();
print("Appel d'une interruption\r\n");
popad();
popf();
sti();
iret();
}
void exception0()
{
print("divide error\r\n");
}
void exception1()
{
cpuerror("debug exception\r\n");
}
void exception2()
{
cpuerror("non-maskable hardware interrupt\r\n");
}
void exception3()
{
cpuerror("INT3 instruction\r\n");
}
void exception4()
{
cpuerror("INTO instruction detected overflow\r\n");
}
void exception5()
{
print("BOUND instruction detected overrange\r\n");
}
void exception6()
{
cpuerror("invalid instruction opcode\r\n");
}
void exception7()
{
cpuerror("no coprocessor\r\n");
}
void exception8()
{
cpuerror("double fault\r\n");
}
void exception9()
{
cpuerror("coprocessor segment overrun\r\n");
}
void exception10()
{
cpuerror("invalid task state segment (TSS)\r\n");
}
void exception11()
{
cpuerror("segment not present\r\n");
}
void exception12()
{
cpuerror("stack fault");
}
void exception13()
{
cpuerror("general protection fault (GPF)\r\n");
}
void exception14()
{
cpuerror("page fault\r\n");
}
void exception15()
{
cpuerror("(reserved)\r\n");
}
void exception16()
{
cpuerror("coprocessor error\r\n");
}
void exception17()
{
cpuerror("alignment check\r\n");
}
void exception18()
{
cpuerror("machine check");
}
void irq0()
{
cli();
pushf();
pushad();
print("irq 0");
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq1()
{
cli();
pushf();
pushad();
print("irq 1");
while ((inb(0x64)&1)==0);
inb(0x60);
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq2()
{
cli();
pushf();
pushad();
print("irq 2");
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq3()
{
cli();
pushf();
pushad();
print("irq 3");
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq4()
{
cli();
pushf();
pushad();
print("irq 4");
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq5()
{
cli();
pushf();
pushad();
print("irq 5");
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq6()
{
cli();
pushf();
pushad();
print("irq 6");
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq7()
{
cli();
pushf();
pushad();
print("irq 7");
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq8()
{
cli();
pushf();
pushad();
print("irq 8");
irqendslave();
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq9()
{
cli();
pushf();
pushad();
print("irq 9");
irqendslave();
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq10()
{
cli();
pushf();
pushad();
print("irq 10");
irqendslave();
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq11()
{
cli();
pushf();
pushad();
print("irq 11");
irqendslave();
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq12()
{
cli();
pushf();
pushad();
print("irq 12");
while ((inb(0x64)&1)==0);
inb(0x60);
irqendslave();
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq13()
{
cli();
pushf();
pushad();
print("irq 13");
irqendslave();
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq14()
{
cli();
pushf();
pushad();
print("irq 14");
irqendslave();
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq15()
{
cli();
print("irq 15");
irqendslave();
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void initidt(void)
{
u16 i;
putidt((u32)exception0, 0x20, INTGATE, 0);
putidt((u32)exception1, 0x20, INTGATE, 1);
putidt((u32)exception2, 0x20, INTGATE, 2);
putidt((u32)exception3, 0x20, INTGATE, 3);
putidt((u32)exception4, 0x20, INTGATE, 4);
putidt((u32)exception5, 0x20, INTGATE, 5);
putidt((u32)exception6, 0x20, INTGATE, 6);
putidt((u32)exception7, 0x20, INTGATE, 7);
putidt((u32)exception8, 0x20, INTGATE, 8);
putidt((u32)exception9, 0x20, INTGATE, 9);
putidt((u32)exception10, 0x20, INTGATE, 10);
putidt((u32)exception11, 0x20, INTGATE, 11);
putidt((u32)exception12, 0x20, INTGATE, 12);
putidt((u32)exception13, 0x20, INTGATE, 13);
putidt((u32)exception14, 0x20, INTGATE, 14);
putidt((u32)exception15, 0x20, INTGATE, 15);
putidt((u32)exception16, 0x20, INTGATE, 16);
putidt((u32)exception17, 0x20, INTGATE, 17);
putidt((u32)exception18, 0x20, INTGATE, 18);
for(i=19;i<32;i++)
{
putidt((u32)interruption, 0x20, INTGATE, i);
}
putidt((u32)irq0, 0x20, INTGATE, 32);
putidt((u32)irq1, 0x20, INTGATE, 33);
putidt((u32)irq2, 0x20, INTGATE, 34);
putidt((u32)irq3, 0x20, INTGATE, 35);
putidt((u32)irq4, 0x20, INTGATE, 36);
putidt((u32)irq5, 0x20, INTGATE, 37);
putidt((u32)irq6, 0x20, INTGATE, 38);
putidt((u32)irq7, 0x20, INTGATE, 39);
for(i=40;i<96;i++)
{
putidt((u32)interruption, 0x20, INTGATE, i);
}
putidt((u32)irq8, 0x20, INTGATE, 96);
putidt((u32)irq9, 0x20, INTGATE, 97);
putidt((u32)irq10, 0x20, INTGATE, 98);
putidt((u32)irq11, 0x20, INTGATE, 99);
putidt((u32)irq12, 0x20, INTGATE, 100);
putidt((u32)irq13, 0x20, INTGATE, 101);
putidt((u32)irq14, 0x20, INTGATE, 102);
putidt((u32)irq15, 0x20, INTGATE, 103);
for(i=104;i<255;i++)
{
putidt((u32)interruption, 0x20, INTGATE, i);
}
/* initialise le registre idt */
idtreg.limite = 256*8;
idtreg.base = 0x0000000;
/* recopie de la IDT a son adresse */
memcpy(&idt, (u8*)idtreg.base, idtreg.limite,1);
/* chargement du registre IDTR */
lidt(&idtreg);
}

549
lib/interrupts.c Executable file
View File

@ -0,0 +1,549 @@
#include "interrupts.h"
#include "types.h"
#include "asm.h"
#include "memory.h"
#include "video.h"
/* registre idt */
static struct dtr idtreg;
/* table de IDT */
static idtdes idt[256];
/******************************************************************************/
/* Initialise le controleur d'interruption 8259A */
void initpic(void)
{
/* MASTER */
/* Initialisation de ICW1 */
outb(0x20, 0x11);
nop();
/* Initialisation de ICW2 - vecteur de depart = 32 */
outb(0x21, 0x20);
nop();
/* Initialisation de ICW3 */
outb(0x21, 0x04);
nop();
/* Initialisation de ICW4 */
outb(0x21, 0x01);
nop();
/* masquage des interruptions */
outb(0x21, 0xFF);
nop();
/* SLAVE */
/* Initialisation de ICW1 */
outb(0xA0, 0x11);
nop();
/* Initialisation de ICW2 - vecteur de depart = 96 */
outb(0xA1, 0x60);
nop();
/* Initialisation de ICW3 */
outb(0xA1, 0x02);
nop();
/* Initialisation de ICW4 */
outb(0xA1, 0x01);
nop();
/* masquage des interruptions */
outb(0xA1, 0xFF);
nop();
/* Demasquage des irqs sauf clavier
outb(0x21,0xFD);
nop();
*/
}
/******************************************************************************/
/* Active une IRQ */
void enableirq(u8 irq)
{
u16 port;
cli();
port = (((irq & 0x08) << 4) + 0x21);
outb(port, inb(port) & ~(1 << (irq & 7)));
sti();
}
/******************************************************************************/
/* Désactive une IRQ */
void disableirq(u8 irq)
{
u16 port;
cli();
port = (((irq & 0x08) << 4) + 0x21);
outb(port, inb(port) | (1 << (irq & 7)));
sti();
}
/******************************************************************************/
/* Créé un descripteur pour l'IDT */
void makeidtdes(u32 offset, u16 select, u16 type, idtdes * desc)
{
desc->offset0_15 = (offset & 0xffff);
desc->select = select;
desc->type = type;
desc->offset16_31 = (offset & 0xffff0000) >> 16;
return;
}
/******************************************************************************/
/* Change une entrée dans l'IDT */
void setidt(u32 offset, u16 select, u16 type, u16 index)
{
cli();
idtdes *desc;
desc = idtreg.base;
desc[index].offset0_15 = (offset & 0xffff);
desc[index].select = select;
desc[index].type = type;
desc[index].offset16_31 = (offset & 0xffff0000) >> 16;
sti();
}
/******************************************************************************/
/* Met une entrée dans l'IDT */
void putidt(u32 offset, u16 select, u16 type, u16 index)
{
idtdes temp;
makeidtdes(offset, select, type, &temp);
idt[index] = temp;
}
/******************************************************************************/
/* Affiche une erreur CPU et fige l'ordinateur */
void cpuerror(const u8 * src)
{
print("\033[31m***** ERREUR CPU ****\r\n -");
print(src);
dump_regs();
while (1) {
nop();
}
}
/******************************************************************************/
/* Déclenché lors de l'appel d'une interruption */
void interruption()
{
cli();
pushf();
pushad();
print("Appel d'une interruption\r\n");
popad();
popf();
sti();
iret();
}
/******************************************************************************/
/* Les expections */
void exception0()
{
print("divide error\r\n");
}
void exception1()
{
cpuerror("debug exception\r\n");
}
void exception2()
{
cpuerror("non-maskable hardware interrupt\r\n");
}
void exception3()
{
cpuerror("INT3 instruction\r\n");
}
void exception4()
{
cpuerror("INTO instruction detected overflow\r\n");
}
void exception5()
{
print("BOUND instruction detected overrange\r\n");
}
void exception6()
{
cpuerror("invalid instruction opcode\r\n");
}
void exception7()
{
cpuerror("no coprocessor\r\n");
}
void exception8()
{
cpuerror("double fault\r\n");
}
void exception9()
{
cpuerror("coprocessor segment overrun\r\n");
}
void exception10()
{
cpuerror("invalid task state segment (TSS)\r\n");
}
void exception11()
{
cpuerror("segment not present\r\n");
}
void exception12()
{
cpuerror("stack fault");
}
void exception13()
{
cpuerror("general protection fault (GPF)\r\n");
}
void exception14()
{
cpuerror("page fault\r\n");
}
void exception15()
{
cpuerror("(reserved)\r\n");
}
void exception16()
{
cpuerror("coprocessor error\r\n");
}
void exception17()
{
cpuerror("alignment check\r\n");
}
void exception18()
{
cpuerror("machine check");
}
/******************************************************************************/
/* Les IRQ par défaut */
void irq0()
{
cli();
pushf();
pushad();
print("irq 0");
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq1()
{
cli();
pushf();
pushad();
print("irq 1");
while ((inb(0x64) & 1) == 0) ;
inb(0x60);
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq2()
{
cli();
pushf();
pushad();
print("irq 2");
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq3()
{
cli();
pushf();
pushad();
print("irq 3");
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq4()
{
cli();
pushf();
pushad();
print("irq 4");
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq5()
{
cli();
pushf();
pushad();
print("irq 5");
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq6()
{
cli();
pushf();
pushad();
print("irq 6");
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq7()
{
cli();
pushf();
pushad();
print("irq 7");
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq8()
{
cli();
pushf();
pushad();
print("irq 8");
irqendslave();
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq9()
{
cli();
pushf();
pushad();
print("irq 9");
irqendslave();
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq10()
{
cli();
pushf();
pushad();
print("irq 10");
irqendslave();
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq11()
{
cli();
pushf();
pushad();
print("irq 11");
irqendslave();
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq12()
{
cli();
pushf();
pushad();
print("irq 12");
while ((inb(0x64) & 1) == 0) ;
inb(0x60);
irqendslave();
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq13()
{
cli();
pushf();
pushad();
print("irq 13");
irqendslave();
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq14()
{
cli();
pushf();
pushad();
print("irq 14");
irqendslave();
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
void irq15()
{
cli();
print("irq 15");
irqendslave();
irqendmaster();
popad();
popf();
sti();
asm("addl $0x01C, %esp;");
iret();
}
/******************************************************************************/
/* Initialise une IDT */
void initidt(void)
{
u16 i;
putidt((u32) exception0, 0x20, INTGATE, 0);
putidt((u32) exception1, 0x20, INTGATE, 1);
putidt((u32) exception2, 0x20, INTGATE, 2);
putidt((u32) exception3, 0x20, INTGATE, 3);
putidt((u32) exception4, 0x20, INTGATE, 4);
putidt((u32) exception5, 0x20, INTGATE, 5);
putidt((u32) exception6, 0x20, INTGATE, 6);
putidt((u32) exception7, 0x20, INTGATE, 7);
putidt((u32) exception8, 0x20, INTGATE, 8);
putidt((u32) exception9, 0x20, INTGATE, 9);
putidt((u32) exception10, 0x20, INTGATE, 10);
putidt((u32) exception11, 0x20, INTGATE, 11);
putidt((u32) exception12, 0x20, INTGATE, 12);
putidt((u32) exception13, 0x20, INTGATE, 13);
putidt((u32) exception14, 0x20, INTGATE, 14);
putidt((u32) exception15, 0x20, INTGATE, 15);
putidt((u32) exception16, 0x20, INTGATE, 16);
putidt((u32) exception17, 0x20, INTGATE, 17);
putidt((u32) exception18, 0x20, INTGATE, 18);
for (i = 19; i < 32; i++) {
putidt((u32) interruption, 0x20, INTGATE, i);
}
putidt((u32) irq0, 0x20, INTGATE, 32);
putidt((u32) irq1, 0x20, INTGATE, 33);
putidt((u32) irq2, 0x20, INTGATE, 34);
putidt((u32) irq3, 0x20, INTGATE, 35);
putidt((u32) irq4, 0x20, INTGATE, 36);
putidt((u32) irq5, 0x20, INTGATE, 37);
putidt((u32) irq6, 0x20, INTGATE, 38);
putidt((u32) irq7, 0x20, INTGATE, 39);
for (i = 40; i < 96; i++) {
putidt((u32) interruption, 0x20, INTGATE, i);
}
putidt((u32) irq8, 0x20, INTGATE, 96);
putidt((u32) irq9, 0x20, INTGATE, 97);
putidt((u32) irq10, 0x20, INTGATE, 98);
putidt((u32) irq11, 0x20, INTGATE, 99);
putidt((u32) irq12, 0x20, INTGATE, 100);
putidt((u32) irq13, 0x20, INTGATE, 101);
putidt((u32) irq14, 0x20, INTGATE, 102);
putidt((u32) irq15, 0x20, INTGATE, 103);
for (i = 104; i < 255; i++) {
putidt((u32) interruption, 0x20, INTGATE, i);
}
/* initialise le registre idt */
idtreg.limite = 256 * 8;
idtreg.base = 0x0000000;
/* recopie de la IDT a son adresse */
memcpy(&idt, (u8 *) idtreg.base, idtreg.limite, 1);
/* chargement du registre IDTR */
lidt(&idtreg);
}

156
lib/keyboard.c
View File

@ -1,4 +1,4 @@
#include "idt.h"
#include "interrupts.h"
#include "types.h"
#include "asm.h"
#include "memory.h"
@ -8,12 +8,16 @@
static u8 bufferscan[256] = { 0 };
static u8 bufferascii[256] = { 0 };
static u8 ptrscan = 0;
static u8 ptrascii = 0;
static u16 kbdstatus, breakcode;
static const u8 set1_normal[] =
{
/******************************************************************************/
/* Tables clavier */
static const u8 set1_normal[] = {
0, 0x1B, '&', 'é', '\"', '\'', '(', '-',
'è', '_', 'ç', 'à', ')', '=', '\b', '\t',
'a', 'z', 'e', 'r', 't', 'y', 'u', 'i',
@ -28,8 +32,7 @@ static const u8 set1_normal[] =
0
};
static const u8 set1_shift[] =
{
static const u8 set1_shift[] = {
0, 0x1B, '1', '2', '3', '4', '5', '6',
'7', '8', '9', '0', '°', '+', '\b', '\t',
'A', 'Z', 'E', 'R', 'T', 'Y', 'U', 'I',
@ -44,8 +47,7 @@ static const u8 set1_shift[] =
0
};
static const u8 set1_alt[] =
{
static const u8 set1_alt[] = {
0, 0x1B, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
0, 0, 0, 0, 0, 0, 0, 0,
@ -60,9 +62,7 @@ static const u8 set1_alt[] =
0
};
static const u8 set1_altgr[] =
{
static const u8 set1_altgr[] = {
0, 0x1B, 0, '~', '#', '{', '[', '|',
'`', '\\', '^', '@', ']', '}', '\b', '\t',
0, 0, 0, 0, 0, 0, 0, 0,
@ -77,8 +77,7 @@ static const u8 set1_altgr[] =
0
};
static const u8 set1_ctrl[] =
{
static const u8 set1_ctrl[] = {
0, 0x1B, 0, 0, 0, 0, 0x1B, 0,
0, 0x1C, 0, 0, 0x1D, 0, 0, 0x1F,
0x01, 0x1A, 0x05, 0x012, 0x14, 0x19, 0x15, 0x09,
@ -92,45 +91,51 @@ static const u8 set1_ctrl[] =
'2', '3', '0', '.', 0, 0, 0, 0,
0
};
/******************************************************************************/
/* Fonction qui attend l'appuie d'une touche générant un code ASCII puis le retourne */
u8 waitascii()
{
u8 oldptrscan = ptrscan;
u8 oldptrascii = ptrascii;
while((oldptrascii==ptrascii));/*(oldptrscan==ptrscan)&&*/
while ((oldptrascii == ptrascii)) ;
return bufferascii[ptrascii];
}
/******************************************************************************/
/* Envoi d'une commande vers le contrôleur de clavier */
void outkbd(u8 port, u8 data)
{
u32 timeout;
u8 state;
/* timeout */
for(timeout = 500000L; timeout != 0; timeout--)
{
for (timeout = 500000L; timeout != 0; timeout--) {
state = inb(0x64);
/* vide le buffer du 8042 */
if((state & 0x02) == 0) break;
if ((state & 0x02) == 0)
break;
}
if (timeout != 0)
outb(port, data);
}
/******************************************************************************/
/* Redemarre l'ordinateur */
static void reboot(void)
{
u8 temp;
cli();
/* vide le 8042 */
do
{
do {
temp = inb(0x64);
if((temp & 0x01) != 0)
{
if ((temp & 0x01) != 0) {
(void)inb(0x60);
continue;
}
@ -142,6 +147,9 @@ static void reboot(void)
}
/******************************************************************************/
/* Converti un scancode vers une code ASCII */
unsigned convert(u32 keypressed)
{
u8 temp, key, lastscan;
@ -149,21 +157,21 @@ unsigned convert(u32 keypressed)
lastscan = ptrscan;
/* incrémente le pointeur est assigne au buffer le dernier scancode */
ptrscan++;
if (ptrscan==255) ptrscan==0;
if (ptrscan == 255)
ptrscan == 0;
bufferscan[ptrscan] = keypressed;
/* break key (touche relaché) ? */
if(keypressed >= 0x80) breakcode = 1;
if (keypressed >= 0x80)
breakcode = 1;
key = (keypressed & 0x7F);
/* Mise a jour des flags lors du relachement de touches de controle */
if(breakcode)
{
if(key == SCAN_ALT)
{
if (breakcode) {
if (key == SCAN_ALT) {
kbdstatus &= ~STATUS_ALT;
/* si ALT GR (E01D) alors activer aussi control */
if (bufferscan[lastscan]==0xE0) kbdstatus &= ~STATUS_CTRL;
}
else if(key == SCAN_CTRL)
if (bufferscan[lastscan] == 0xE0)
kbdstatus &= ~STATUS_CTRL;
} else if (key == SCAN_CTRL)
kbdstatus &= ~STATUS_CTRL;
else if (key == SCAN_LEFTSHIFT || key == SCAN_RIGHTSHIFT)
kbdstatus &= ~STATUS_SHIFT;
@ -171,42 +179,36 @@ unsigned convert(u32 keypressed)
return 0;
}
/* Mise a jour des flags lors de l'appuie de touches de controle */
if(key == SCAN_ALT)
{
if (key == SCAN_ALT) {
kbdstatus |= STATUS_ALT;
/* si ALT GR (E01D) alors desactiver aussi control */
if (bufferscan[lastscan]==0xE0) kbdstatus |= STATUS_CTRL;
return 0;
}
if(key == SCAN_CTRL)
{
if (bufferscan[lastscan] == 0xE0)
kbdstatus |= STATUS_CTRL;
return 0;
}
if(key == SCAN_LEFTSHIFT || key == SCAN_RIGHTSHIFT)
{
if (key == SCAN_CTRL) {
kbdstatus |= STATUS_CTRL;
return 0;
}
if (key == SCAN_LEFTSHIFT || key == SCAN_RIGHTSHIFT) {
kbdstatus |= STATUS_SHIFT;
return 0;
}
if ((key >= SCAN_F1) && (key <= SCAN_F8))
{
if ((key >= SCAN_F1) && (key <= SCAN_F8)) {
changevc(key - SCAN_F1);
}
/* Scroll Lock, Num Lock, and Caps Lock mise a jour des leds */
if(key == SCAN_SCROLLLOCK)
{
if (key == SCAN_SCROLLLOCK) {
kbdstatus ^= STATUS_SCRL;
goto LEDS;
}
if(key == SCAN_NUMLOCK)
{
if (key == SCAN_NUMLOCK) {
kbdstatus ^= STATUS_NUM;
goto LEDS;
}
if(key == SCAN_CAPSLOCK)
{
if (key == SCAN_CAPSLOCK) {
kbdstatus ^= STATUS_CAPS;
LEDS:
outkbd(0x60, 0xED); /* "mise a jour des LEDS */
@ -221,39 +223,52 @@ LEDS:
return 0;
}
/* est ce un code etendu */
if ((bufferscan[lastscan]==0xE0)||((kbdstatus & STATUS_NUM)&&(key>=0x47)&&(key<=0x53)&&(key!=0x4A)&&(key!=0x4e)))
if ((bufferscan[lastscan] == 0xE0)
|| ((kbdstatus & STATUS_NUM) && (key >= 0x47) && (key <= 0x53)
&& (key != 0x4A) && (key != 0x4e)))
/* exceptions */
{
/* '/' (E035) */
if (key==0x35) return '/';
if (key == 0x35)
return '/';
/* '\r' (E01C) 2ème enter numérique */
if (key==0x1C) return '\r';
if (key == 0x1C)
return '\r';
/* 0x11 (E048) device control 1) */
if (key==0x48) return 0x11;
if (key == 0x48)
return 0x11;
/* 0x12 (E050) device control 2) */
if (key==0x50) return 0x12;
if (key == 0x50)
return 0x12;
/* 0x13 (E04b) device control 3) */
if (key==0x4b) return 0x13;
if (key == 0x4b)
return 0x13;
/* 0x14 (E04d) device control 4) */
if (key==0x4d) return 0x14;
if (key == 0x4d)
return 0x14;
/* 0x02 (E049) start of text) */
if (key==0x49) return 0x2;
if (key == 0x49)
return 0x2;
/* 0x03 (E051) end of text) */
if (key==0x51) return 0x3;
if (key == 0x51)
return 0x3;
/* 0x10 (E047) Line feed) */
if (key==0x47) return '\n';
if (key == 0x47)
return '\n';
/* 0x1A (E052) Substitution) */
if (key==0x52) return 0x1A;
if (key == 0x52)
return 0x1A;
/* 0x18 (E053) Cancel) */
if (key==0x53) return 0x18;
if (key == 0x53)
return 0x18;
/* 0x19 (E04f) End of medium) */
if (key==0x4f) return 0x19;
if (key == 0x4f)
return 0x19;
return 0x00;
}
else
{
} else {
/* detecte les SCANCODES invalides */
if(key >= sizeof(set1_normal) / sizeof(set1_normal[0])) return 0;
if (key >= sizeof(set1_normal) / sizeof(set1_normal[0]))
return 0;
/* converti le scancode en code ASCII en fonction du statut*/
if (kbdstatus & STATUS_SHIFT || kbdstatus & STATUS_CAPS)
temp = set1_shift[key];
@ -268,11 +283,11 @@ if ((bufferscan[lastscan]==0xE0)||((kbdstatus & STATUS_NUM)&&(key>=0x47)&&(key<=
}
/* si scancode non reconnu fin de fonction */
if(temp == 0) return temp;
if (temp == 0)
return temp;
/* Appuie de CRTL + ALT + SUPR ? */
if ((kbdstatus & STATUS_CTRL) && (kbdstatus & STATUS_ALT) &&
(key == 76))
{
(key == 76)) {
print("redemarrage du systeme");
reboot();
}
@ -280,9 +295,10 @@ if ((bufferscan[lastscan]==0xE0)||((kbdstatus & STATUS_NUM)&&(key>=0x47)&&(key<=
return temp;
}
/******************************************************************************/
/* Handler d'interruption IRQ 1 pour le clavier */
void keyboard()
{
cli();
@ -293,10 +309,10 @@ cli();
while ((inb(0x64) & 1) == 0) ;
scancode = inb(0x60);
ascii = convert(scancode);
if(ascii != 0)
{
if (ascii != 0) {
ptrascii++;
if (ptrascii==255) ptrascii==0;
if (ptrascii == 255)
ptrascii == 0;
bufferascii[ptrascii] = ascii;
}
irqendmaster();

0
lib/keymap.c
View File

2
lib/makefile
View File

@ -1,6 +1,6 @@
CC=gcc -O0 -g -nostdinc -ffreestanding -fno-builtin -fomit-frame-pointer -Wall -w -m32 -F pe-i386 -I ../include
LINK=ld -m elf_i386 -r -o
OBJS=memory.o vga.o port.o video.o mouse.o idt.o timer.o keyboard.o types.o string.o graph.o 3d.o math.o cpu.o
OBJS=memory.o vga.o video.o mouse.o interrupts.o timer.o keyboard.o types.o string.o 2d.o 3d.o math.o cpu.o
all: makeall

11
lib/math.c
View File

@ -1,7 +1,12 @@
#include "types.h"
u32 abs(int x)
{
if (x<0) x=-x;
/******************************************************************************/
/* Fonction qui retourne la valeur absolue */
u32 abs(int x) {
if (x < 0)
x = -x;
return (u32) x;
}

12
lib/memory.c
View File

@ -3,11 +3,11 @@
/*******************************************************************************/
/* Copie un octet une ou plusieurs fois en mémoire */
void memset(void *dst, u8 val, u32 count, u32 size)
{
u8 * temp;
for(temp = (u8 *)dst; count != 0; count--)
{
for (temp = (u8 *) dst; count != 0; count--) {
temp += size;
*temp = val;
}
@ -16,8 +16,8 @@ void memset(void *dst, u8 val, u32 count,u32 size)
/*******************************************************************************/
/* Copie une portion de mémoire vers une autre */
void memcpy(void *src, void *dst, u32 count, u32 size)
{
void memcpy(void *src, void *dst, u32 count, u32 size) {
char *s, *d;
u32 i;
s = (u8 *) src;
@ -30,12 +30,12 @@ void memcpy(void *src, void *dst, u32 count, u32 size)
/*******************************************************************************/
/* Compare 2 portions de mémoire */
u32 memcmp(void *src, void *dst, u32 count, u32 size)
{
const u8 *mem1 = (const u8 *)src;
const u8 *mem2 = (const u8 *)dst;
for(; count != 0; count--)
{
for (; count != 0; count--) {
if (*mem1 != *mem2)
return *mem1 - *mem2;
mem1 += size;

225
lib/modes.c
View File

@ -1,225 +0,0 @@
/* definition des registres de la carte VGA pour differents modes */
#define maxgraphmode 11
#define maxtextmode 5
static mode_def textmodes[maxtextmode] = {
/*40*25 16 couleurs mode 0x00*/
{
0x67,
0x03, 0x08, 0x03, 0x00, 0x02,
0x2D, 0x27, 0x28, 0x90, 0x2B, 0xA0, 0xBF, 0x1F, 0x00,
0x4F, 0x0D, 0x0E, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x8E, 0x8F, 0x14, 0x1F, 0x96, 0xB9, 0xA3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
0x0C, 0x00, 0x0F, 0x08, 0x00,
45, 25, 4
},
/*80*25 16 couleurs mode 0x01*/
{
0x67,
0x03, 0x00, 0x03, 0x00, 0x02,
0x5F, 0x4F, 0x50, 0x82, 0x55, 0x81, 0xBF, 0x1F, 0x00,
0x4F, 0x0D, 0x0E, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x0E, 0x8F, 0x28, 0x1F, 0x96, 0xB9, 0xA3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
0x0C, 0x00, 0x0F, 0x08, 0x00,
80, 25, 4
},
/*80*50 16 couleurs mode 0x02*/
{
0x63,
0x03, 0x01, 0x03, 0x05, 0x02,
0x5F, 0x4F, 0x50, 0x82, 0x55, 0x81, 0xBF, 0x1F, 0x00,
0x47, 0x06, 0x07, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x8E, 0x8F, 0x28, 0x1F, 0x96, 0xB9, 0xA3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
0x0C, 0x00, 0x0F, 0x00, 0x00,
80, 50, 4
},
/*100*50 16 couleurs mode 0x03*/
{
0x67,
0x03, 0x01, 0x03, 0x05, 0x02,
0x70, 0x63, 0x64, 0x85, 0x68, 0x84, 0xBF, 0x1F, 0x00,
0x47, 0x06, 0x07, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x8E, 0x8F, 0x32, 0x1F, 0x96, 0xB9, 0xA3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
0x0C, 0x00, 0x0F, 0x00, 0x00,
100, 50, 4
},
/*100*60 16 couleurs mode 0x04*/
{
0xA7,
0x03, 0x01, 0x03, 0x05, 0x02,
0x70, 0x63, 0x64, 0x85, 0x68, 0x84, 0xFF, 0x1F, 0x00,
0x47, 0x06, 0x07, 0x00, 0x00, 0x00, 0x00,
0xE7, 0x8E, 0xDF, 0x32, 0x1F, 0xDF, 0xE5, 0xA3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x10, 0x02, 0x00, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x14, 0x07, 0x38, 0x39, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
0x0C, 0x00, 0x0F, 0x00, 0x00,
100, 60, 4
}
};
static mode_def graphmodes[maxgraphmode] = {
/*640*480 n&b mode 0x80*/
{
0xE3,
0x03, 0x01, 0x0F, 0x00, 0x06,
0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0x0B, 0x3E, 0x00,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xEA, 0x0C, 0xDF, 0x28, 0x00, 0xE7, 0x04, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x10, 0x11, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
0x01, 0x00, 0x0F, 0x00, 0x00,
80, 60, 1
},
/*320*200 4 couleurs mode 0x81*/
{
0x63,
0x03, 0x09, 0x03, 0x00, 0x02,
0x2D, 0x27, 0x28, 0x90, 0x2B, 0x80, 0xBF, 0x1F, 0x00,
0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x0E, 0x8F, 0x14, 0x00, 0x96, 0xB9, 0xA3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x30, 0x02, 0x00, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x10, 0x11, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
0x01, 0x00, 0x03, 0x00, 0x00,
40, 25,
},
/*640*480 16 couleurs mode 0x82*/
{
0xE3,
0x03, 0x01, 0x0F, 0x00, 0x06,
0x5F, 0x4F, 0x50, 0x82, 0x53, 0x9F, 0x0B, 0x3E, 0x00,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xE9, 0x8B, 0xDF, 0x28, 0x00, 0xE7, 0x04, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x10, 0x11, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
0x01, 0x00, 0x0F, 0x00, 0x00,
80, 60, 4
},
/*720*480 16 couleurs mode 0x83*/
{
0xE7,
0x03, 0x01, 0x08, 0x00, 0x06,
0x6B, 0x59, 0x5A, 0x82, 0x60, 0x8D, 0x0B, 0x3E, 0x00,
0x40, 0x06, 0x07, 0x00, 0x00, 0x00, 0x00,
0xEA, 0x0C, 0xDF, 0x2D, 0x08, 0xE8, 0x05, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x03, 0x00, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x10, 0x11, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
0x01, 0x00, 0x0F, 0x00, 0x00,
90, 60, 4
},
/*800*600 16 couleurs mode 0x84*/
{
0xE7,
0x03, 0x01, 0x0F, 0x00, 0x06,
0x70, 0x63, 0x64, 0x92, 0x65, 0x82, 0x70, 0xF0, 0x00,
0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x5B, 0x8C, 0x57, 0x32, 0x00, 0x58, 0x70, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x10, 0x11, 0x3A, 0x3B, 0x3C, 0x3D, 0x3E, 0x3F,
0x01, 0x00, 0x0F, 0x00, 0x00,
100, 75, 4
},
/*320*200 256 couleurs RAPIDE mode 0x85*/
{
0x63,
0x03, 0x01, 0x0F, 0x00, 0x0E,
0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0xBF, 0x1F, 0x00,
0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x0E, 0x8F, 0x28, 0x40, 0x96, 0xB9, 0xA3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x00, 0x0F, 0x00, 0x00,
40, 25, 8
},
/*320*200 256 couleurs mode 0x86*/
{
0x63,
0x03, 0x01, 0x0F, 0x00, 0x06,
0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0xBF, 0x1F, 0x00,
0x41, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x0E, 0x8F, 0x28, 0x00, 0x96, 0xB9, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x00, 0x0F, 0x00, 0x00,
40, 25, 8
},
/*320*400 256 couleurs mode 0x87*/
{
0x63,
0x03, 0x01, 0x0F, 0x00, 0x06,
0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0xBF, 0x1F, 0x00,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x9C, 0x8E, 0x8F, 0x28, 0x00, 0x96, 0xB9, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x00, 0x0F, 0x00, 0x00,
40, 50, 8
},
/*320*480 256 couleurs mode 0x88*/
{
0xE3,
0x03, 0x01, 0x0F, 0x00, 0x06,
0x5F, 0x4F, 0x50, 0x82, 0x54, 0x80, 0x0B, 0x3E, 0x00,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xEA, 0xAC, 0xDF, 0x28, 0x00, 0xE7, 0x06, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x00, 0x0F, 0x00, 0x00,
40, 60, 8
},
/*360*480 256 couleurs mode 0x89*/
{
0xE7,
0x03, 0x01, 0x0F, 0x00, 0x06,
0x6B, 0x59, 0x5A, 0x8E, 0x5E, 0x8A, 0x0D, 0x3E, 0x00,
0x40, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0xEA, 0xAC, 0xDF, 0x2D, 0x00, 0xE7, 0x06, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x00, 0x0F, 0x00, 0x00,
45, 60, 8
},
/*400*600 256 couleurs mode 0x8A*/
{
0xE7,
0x03, 0x01, 0x0F, 0x00, 0x06,
0x74, 0x63, 0x64, 0x97, 0x68, 0x95, 0x86, 0xF0, 0x00,
0x60, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
0x5B, 0x8D, 0x57, 0x32, 0x00, 0x60, 0x80, 0xE3, 0xFF,
0x00, 0x00, 0x00, 0x00, 0x00, 0x40, 0x05, 0x0F, 0xFF,
0x00, 0x01, 0x02, 0x03, 0x04, 0x05, 0x06, 0x07, 0x08, 0x09, 0x0A, 0x0B, 0x0C, 0x0D, 0x0E, 0x0F,
0x41, 0x00, 0x0F, 0x00, 0x00,
50, 75, 8
}
};

84
lib/mouse.c
View File

@ -5,6 +5,10 @@
#include "vga.h"
#include "video.h"
/******************************************************************************/
/* initialise la souris */
bool initmouse()
{
u16 i = 1024;
@ -23,7 +27,9 @@ outmseack(0xf4); /* Autorise peripherique */
outmsecmd(0x47); /* Autorise interruption */
while(i-->0) if (inb(0x60)==250) return 1;
while (i-- > 0)
if (inb(0x60) == 250)
return 1;
return 0;
}
@ -35,30 +41,39 @@ static u8 oldchar=0x00,oldattr=0x07;
static bool mousebut1 = 0, mousebut2 = 0, mousebut3 = 0;
static u8 speed = 6;
/******************************************************************************/
/* ecriture vers souris */
void outmseack(u8 value)
{
outkbd(0x64,0xD4); /* ecriture vers souris */
outkbd(0x64, 0xD4);
outb(0x60, value);
mousereplies++;
}
/* ecriture vers mode */
void outmsecmd(u8 command)
{
outkbd(0x64,0x60); /* ecriture vers mode */
outkbd(0x64, 0x60);
outb(0x60, command);
}
/******************************************************************************/
/* Handler d'interruption de la souris IRQ 12 */
void mouse()
{
cli();
pushf();
pushad();
u8 mbyte = inb(0x60);
s8 changex, changey;
cli();
if (mousereplies > 0)
{
if (mbyte == 0xFA)
{
if (mousereplies > 0) {
if (mbyte == 0xFA) {
mousereplies--;
goto endofint;
}
@ -70,34 +85,34 @@ cli();
if (bytepos == 3) {
bytepos = 0;
if ( mpacket[1] == 0)
{
if (mpacket[1] == 0) {
changex = 0;
}
else
{
} else {
changex = (mpacket[0] & 0x10) ?
mpacket[1] - 256 :
mpacket[1];
mpacket[1] - 256 : mpacket[1];
}
if (mpacket[2] == 0)
{
if (mpacket[2] == 0) {
changey = 0;
}
else
{
} else {
changey = -((mpacket[0] & 0x20) ?
mpacket[2] - 256 :
mpacket[2]);
mpacket[2] - 256 : mpacket[2]);
}
mousex += (changex << speed);
mousey += (changey << speed);
if(mousex<0) { mousex=0; }
if(mousex>=65535) { mousex=65535; }
if(mousey<0) { mousey=0; }
if(mousey>=65535) { mousey=65535; }
if (mousex < 0) {
mousex = 0;
}
if (mousex >= 65535) {
mousex = 65535;
}
if (mousey < 0) {
mousey = 0;
}
if (mousey >= 65535) {
mousey = 65535;
}
u16 newx = (u32) mousex * getxres() / 65536;
u16 newy = (u32) mousey * getyres() / 65536;
@ -109,8 +124,7 @@ if ( mpacket[1] == 0)
// printf("RX:%d\tRY:%d\tX:%d\tY:%d\tB1:%d\tB2:%d\tB3:%d\t\r\n",changex,changey,mousex,mousey,mousebut1,mousebut2,mousebut3);
if ((newx!=oldx)||(newy!=oldy))
{
if ((newx != oldx) || (newy != oldy)) {
showchar(oldx, oldy, oldchar, oldattr);
oldx = newx;
oldy = newy;
@ -122,17 +136,11 @@ if ((newx!=oldx)||(newy!=oldy))
endofint:
irqendmaster();
irqendslave();
popad();
popf();
sti();
//asm("movl 0x2C(%esp), %ebx;movl 0x30(%esp), %esi;movl 0x34(%esp), %edi;movl 0x38(%esp), %ebp;addl $0x3C, %esp;iret;");
asm(
"addl $0x18,%esp;\
asm("addl $0x18,%esp;\
popl %bx;\
iret;");
iret();
}

68
lib/port.c
View File

@ -1,68 +0,0 @@
#include "types.h"
#include "asm.h"
/*******************************************************************************/
/* Envoie une série d'octet a destination d'une portion de mémoire
vers le registre video spécifié */
void outreg(u16 port,u8 *src,u16 num)
{
int i;
for(i=0;i<num;i++)
{
outb(port,i);
outb(port+1,*src++);
}
}
/*******************************************************************************/
/* Envoie une série d'octet a destination d'une portion de mémoire
vers le registre video spécifié (accés data et index confondu) */
void outregsame(u16 port,u8 *src,u16 num)
{
int i;
for(i=0;i<num;i++)
{
inb(port);
outb(port,i);
outb(port,*src++);
}
}
/*******************************************************************************/
/* Récupère une série d'octet en provenance d'un registre video spécifié
vers portion de mémoire */
void inreg(u16 port,u8 *src,u16 num)
{
int i;
for(i=0;i<num;i++)
{
outb(port,i);
*src++=inb(port+1);
}
}
/*******************************************************************************/
/* Récupère une série d'octet en provenance d'un registre video spécifié
vers portion de mémoire (accés data et index confondu) */
void inregsame(u16 port,u8 *src,u16 num)
{
int i;
for(i=0;i<num;i++)
{
inb(port);
outb(port,i);
*src++=inb(port);
}
}
/*******************************************************************************/

25
lib/string.c
View File

@ -1,27 +1,34 @@
#include <string.h>
/******************************************************************************/
/* Compare 2 chaines de caractère et renvoie la premiere distance (diff) */
s8 strcmp(const u8 * src, const u8 * des)
{
register s8 result;
do
{
if ((result = *src - *des++) != 0) break;
do {
if ((result = *src - *des++) != 0)
break;
}
while (*src++ != 0);
return result;
}
/******************************************************************************/
/* Trouve la premiere occurence d'un caractère dans une chaine */
u8 *strchr(const u8 * src, u8 achar)
{
for (; *src != achar; ++src)
if (*src == 0) return 0;
if (*src == 0)
return 0;
return (u8 *) src;
}
/******************************************************************************/
/* Renvoie la taille de la chaine */
u32 strlen(const u8 * src)
@ -32,6 +39,7 @@ u32 strlen(const u8 *src)
return size;
}
/******************************************************************************/
/* copie une chaine dans une autre */
u8 *strcpy(const u8 * src, u8 * des)
@ -41,6 +49,7 @@ u8* strcpy(const u8 *src, u8 *des)
return temp;
}
/******************************************************************************/
/* copie une portion limité d'une chaine asciiZ*/
@ -48,18 +57,22 @@ u8 *strncpy(const u8 *src,u8 *des,u32 count)
{
u8 *temp = des;
while (count) {
if ((*temp = *src) != 0) src++;
if ((*temp = *src) != 0)
src++;
temp++;
count--;
}
return des;
}
/******************************************************************************/
/* concatene 2 chaines de caractère */
u8 *strcat(const u8 * src, u8 * des)
{
u8 *temp = des;
while (*des!=0) des++;
while (*des != 0)
des++;
while ((*des++ = *src++) != 0) ;
return temp;
}

6
lib/timer.c
View File

@ -1,15 +1,17 @@
#include "idt.h"
#include "interrupts.h"
#include "types.h"
#include "asm.h"
#include "memory.h"
#include "timer.h"
#include "vga.h"
static u8 curs[4] = { "-\\|/" };
static u8 curspos = 0;
/******************************************************************************/
/* Handler d'interruption de la souris IRQ 0 */
void timer()
{

3
lib/types.c
View File

@ -1,7 +1,6 @@
#include <types.h>
char ctype[] =
{
char ctype[] = {
0x00,
/* 0 */ CT_CTL, CT_CTL, CT_CTL, CT_CTL,
CT_CTL, CT_CTL, CT_CTL, CT_CTL,

216
lib/vga.c
View File

@ -1,11 +1,10 @@
#include "vga.h"
#include "memory.h"
#include "asm.h"
#include "port.h"
#include "types.h"
#include "modes.c"
#include "8x8fnt.c"
#include "8x16fnt.c"
#include "VGA/modes.c"
#include "VGA/8x8fnt.c"
#include "VGA/8x16fnt.c"
/* Registres VGAs */
@ -70,7 +69,8 @@ return pages;
void setpage(u8 page)
{
if (page<pages) activepage=page;
if (page < pages)
activepage = page;
}
/*******************************************************************************/
@ -88,8 +88,7 @@ return activepage;
void showpage(u8 page)
{
if (page<pages)
{
if (page < pages) {
u16 addr;
addr = page * pagesize / 2;
outb(ccrt, 0x0C);
@ -99,6 +98,7 @@ u16 addr;
showedpage = page;
}
}
/*******************************************************************************/
/* Sépare l'écran en 2 a partir de la ligne Y */
@ -124,6 +124,7 @@ else
outb(ccrt + 1, (inb(ccrt + 1) & ~64) | ((addr >> 3) & 64));
splitY = y;
}
/*******************************************************************************/
/* Sépare l'écran en 2 a partir de la ligne Y */
@ -194,7 +195,6 @@ void disablecursor (void)
/* Active le scrolling en cas de débordement d'écran */
void enablescroll(void)
{
scrolling = true;
}
@ -236,8 +236,7 @@ u32 getbase(void)
base = inb(graphics + 1);
base >>= 2;
base &= 3;
switch(base)
{
switch (base) {
case 0:
case 1:
base = 0xA0000;
@ -258,25 +257,26 @@ u32 getbase(void)
void (*fill) (u8 attrib);
void fill_text(u8 attrib)
{
memset((u8 *) (basemem + activepage * pagesize), ' ', pagesize / 2, 2);
memset((u8 *)(basemem+activepage*pagesize+1),attrib,pagesize/2,2);
memset((u8 *) (basemem + activepage * pagesize + 1), attrib,
pagesize / 2, 2);
}
void fill_chain(u8 attrib)
{
memset((u8 *)(basemem+activepage*pagesize),attrib&0x0F,pagesize,1);
memset((u8 *) (basemem + activepage * pagesize), attrib & 0x0F,
pagesize, 1);
}
void fill_unchain(u8 attrib)
{
int i;
for(i=0;i<4;i++)
{
for (i = 0; i < 4; i++) {
useplane(i);
memset((u8 *)(basemem+activepage*pagesize),attrib&0x0F,pagesize,1);
memset((u8 *) (basemem + activepage * pagesize), attrib & 0x0F,
pagesize, 1);
}
}
@ -305,34 +305,45 @@ void (*scroll)(u8 lines,u8 attrib);
void scroll_unchain(u8 lines, u8 attrib)
{
if (scrolling)
{
if (scrolling) {
u8 i;
for(i=0;i<4;i++)
{
for (i = 0; i < 4; i++) {
useplane(i);
memcpy((u8*)(basemem+activepage*pagesize+linesize*8*lines),(u8*)basemem,pagesize-linesize*8*lines,1);
memset((u8*)(basemem+activepage*pagesize+pagesize-linesize*8*lines),attrib&0x0F,linesize*8*lines,1);
memcpy((u8 *) (basemem + activepage * pagesize +
linesize * 8 * lines), (u8 *) basemem,
pagesize - linesize * 8 * lines, 1);
memset((u8 *) (basemem + activepage * pagesize +
pagesize - linesize * 8 * lines),
attrib & 0x0F, linesize * 8 * lines, 1);
}
}
}
void scroll_chain(u8 lines, u8 attrib)
{
if (scrolling)
{
memcpy((u8*)basemem+activepage*pagesize+linesize*8*lines,(u8*)basemem+activepage*pagesize,pagesize-linesize*8*lines,1);
memset((u8*)(basemem+activepage*pagesize+pagesize-linesize*8*lines),attrib&0x0F,linesize*8*lines,1);
if (scrolling) {
memcpy((u8 *) basemem + activepage * pagesize +
linesize * 8 * lines,
(u8 *) basemem + activepage * pagesize,
pagesize - linesize * 8 * lines, 1);
memset((u8 *) (basemem + activepage * pagesize + pagesize -
linesize * 8 * lines), attrib & 0x0F,
linesize * 8 * lines, 1);
}
}
void scroll_text(u8 lines, u8 attrib)
{
if (scrolling)
{
memcpy((u8*)basemem+activepage*pagesize+linesize*lines,(u8*)basemem+activepage*pagesize,pagesize-linesize*lines,1);
memset((u8*)(basemem+activepage*pagesize+pagesize-linesize*lines-2),' ',(linesize*lines)/2,2);
memset((u8*)(basemem+activepage*pagesize+pagesize-linesize*lines-1),attrib,(linesize*lines)/2,2);
if (scrolling) {
memcpy((u8 *) basemem + activepage * pagesize +
linesize * lines, (u8 *) basemem + activepage * pagesize,
pagesize - linesize * lines, 1);
memset((u8 *) (basemem + activepage * pagesize + pagesize -
linesize * lines - 2), ' ',
(linesize * lines) / 2, 2);
memset((u8 *) (basemem + activepage * pagesize + pagesize -
linesize * lines - 1), attrib,
(linesize * lines) / 2, 2);
}
}
@ -345,27 +356,26 @@ void (*showchar)(u16 coordx,u16 coordy,u8 thechar,u8 attrib);
void showchar_graphic(u16 coordx, u16 coordy, u8 thechar, u8 attrib)
{
u8 x, y, pattern, set;
for(y=0;y<8;y++)
{
for (y = 0; y < 8; y++) {
pattern = font8x8[thechar * 8 + y];
for(x=0;x<8;x++)
{
for (x = 0; x < 8; x++) {
set = ((pattern >> (7 - x)) & 0x1); /* mettre un ROL importé depuis asm */
if (set == 0)
writepxl(coordx*8+x,coordy*8+y,((attrib&0xF0)>>8)*set);
writepxl(coordx * 8 + x, coordy * 8 + y,
((attrib & 0xF0) >> 8) * set);
else
writepxl(coordx*8+x,coordy*8+y,(attrib&0x0F)*set);
writepxl(coordx * 8 + x, coordy * 8 + y,
(attrib & 0x0F) * set);
}
}
}
void showchar_text(u16 coordx, u16 coordy, u8 thechar, u8 attrib)
{
u8 *screen;
screen = (u8 *)basemem+activepage*pagesize+2*(coordx+coordy*resX);
screen =
(u8 *) basemem + activepage * pagesize + 2 * (coordx +
coordy * resX);
*screen = thechar;
*(++screen) = attrib;
}
@ -377,10 +387,11 @@ void showchar_text(u16 coordx,u16 coordy,u8 thechar,u8 attrib)
u8(*getchar) (u16 coordx, u16 coordy);
u8 getchar_text(u16 coordx, u16 coordy)
{
u8 *screen;
screen = (u8 *)basemem+activepage*pagesize+2*(coordx+coordy*resX);
screen =
(u8 *) basemem + activepage * pagesize + 2 * (coordx +
coordy * resX);
return *screen;
}
@ -391,14 +402,14 @@ u8 getchar_text(u16 coordx,u16 coordy)
u8(*getattrib) (u16 coordx, u16 coordy);
u8 getattrib_text(u16 coordx, u16 coordy)
{
u8 *screen;
screen = (u8 *)basemem+activepage*pagesize+2*(coordx+coordy*resX)+1;
screen =
(u8 *) basemem + activepage * pagesize + 2 * (coordx +
coordy * resX) + 1;
return *screen;
}
/*******************************************************************************/
/* Ecrit un pixel a l'écran */
@ -435,8 +446,7 @@ void writepxl_4bits(u16 x, u16 y, u32 c)
x = (x & 7) * 1;
mask = 0x80 >> x;
pmask = 1;
for(p = 0; p < 4; p++)
{
for (p = 0; p < 4; p++) {
useplane(p);
if (pmask & c)
*off = ((*off) | mask);
@ -472,16 +482,15 @@ u32 setvmode(u8 mode)
graphique : >0x80
text : 0x00 - 0x7F
*/
if (mode>=0x80)
{
if (mode >= 0x80) {
gmode = mode - 0x80;
if (gmode>maxgraphmode) return 1; /* mode inexistant */
if (gmode > maxgraphmode)
return 1; /* mode inexistant */
def = graphmodes[gmode];
graphic = true;
}
else
{
if (mode>maxtextmode) return 1; /* mode inexistant */
} else {
if (mode > maxtextmode)
return 1; /* mode inexistant */
def = textmodes[mode];
graphic = false;
loadfont(font8x8, 8, 1);
@ -512,8 +521,7 @@ profondeur (en bits) */
color = def[63];
/* Initialise l'adresse des procedures de gestion graphique et les differentes
variables en fonction de la profondeur et du mode */
if (!graphic)
{
if (!graphic) {
/* mode texte */
linesize = resX * 2;
writepxl = NULL; /* pas d'affichage de pixels */
@ -523,11 +531,8 @@ variables en fonction de la profondeur et du mode*/
pagesize = resY * linesize;
getchar = getchar_text;
getattrib = getattrib_text;
}
else
{
switch(color)
{
} else {
switch (color) {
case 1:
/* mode N&B */
linesize = resX;
@ -551,16 +556,13 @@ variables en fonction de la profondeur et du mode*/
break;
case 8:
/* mode 256 couleurs */
if (def[5]==0x0E)
{
if (def[5] == 0x0E) {
/* mode chainé (plus rapide mais limité en mémoire) */
linesize = (resX << 3);
writepxl = writepxl_8bits;
scroll = scroll_chain;
fill = fill_chain;
}
else
{
} else {
/* mode non chainé */
linesize = (resX << 1);
writepxl = writepxl_8bitsunchain;
@ -599,13 +601,14 @@ u8 getvmode(void)
/* Charge une nouvelle police de caractère */
u32 loadfont(u8 * def, u8 size, u8 font)
{
if (graphics==1) return 1;
if (graphics == 1)
return 1;
u8 oldregs[5] = { 0, 0, 0, 0, 0 };
u8 *base;
u16 i;
if (font>7) return 1;
if (font > 7)
return 1;
if (font < 4)
base = (u8 *) (getbase() + (font << 14));
else
@ -629,8 +632,7 @@ u32 loadfont(u8* def,u8 size,u8 font)
outb(graphics + 1, oldregs[4] & ~0x02);
/* utilisation du plan N°2 */
useplane(2);
for(i=0; i < 256; i++)
{
for (i = 0; i < 256; i++) {
memcpy(def, base + i * 32, size, 1);
def += size;
}
@ -673,7 +675,6 @@ u8 getfont2()
return num;
}
/*******************************************************************************/
/* Fixe le N° de la police de caractère a utiliser */
@ -682,7 +683,9 @@ void setfont(u8 num)
{
num &= 0x07;
outb(sequencer, 3);
outb(sequencer+1,(inb(sequencer+1)&0xEC)|((num&0x03)+((num&0x04)<<2)));
outb(sequencer + 1,
(inb(sequencer + 1) & 0xEC) | ((num & 0x03) +
((num & 0x04) << 2)));
}
/*******************************************************************************/
@ -693,12 +696,14 @@ void setfont2(u8 num)
{
num &= 0x07;
outb(sequencer, 3);
outb(sequencer+1,(inb(sequencer+1)&0xD3)|(((num&0x03)<<2)+((num&0x04)<<3)));
outb(sequencer + 1,
(inb(sequencer + 1) & 0xD3) | (((num & 0x03) << 2) +
((num & 0x04) << 3)));
}
/*******************************************************************************/
/* Fixe le N° de la police de caractère a utiliser */
/* Autorise le clignotement */
void enableblink()
{
@ -708,7 +713,7 @@ void enableblink()
/*******************************************************************************/
/* Fixe le N° de la police de caractère a utiliser */
/* Annule le clignotement */
void disableblink()
{
@ -718,3 +723,60 @@ void disableblink()
/*******************************************************************************/
/* Envoie une série d'octet a destination d'une portion de mémoire
vers le registre spécifié */
void outreg(u16 port, u8 * src, u16 num)
{
int i;
for (i = 0; i < num; i++) {
outb(port, i);
outb(port + 1, *src++);
}
}
/*******************************************************************************/
/* Envoie une série d'octet a destination d'une portion de mémoire
vers le registre spécifié (accés data et index confondu) */
void outregsame(u16 port, u8 * src, u16 num)
{
int i;
for (i = 0; i < num; i++) {
inb(port);
outb(port, i);
outb(port, *src++);
}
}
/*******************************************************************************/
/* Récupère une série d'octet en provenance d'un registre spécifié
vers portion de mémoire */
void inreg(u16 port, u8 * src, u16 num)
{
int i;
for (i = 0; i < num; i++) {
outb(port, i);
*src++ = inb(port + 1);
}
}
/*******************************************************************************/
/* Récupère une série d'octet en provenance d'un registre spécifié
vers portion de mémoire (accés data et index confondu) */
void inregsame(u16 port, u8 * src, u16 num)
{
int i;
for (i = 0; i < num; i++) {
inb(port);
outb(port, i);
*src++ = inb(port);
}
}
/*******************************************************************************/

179
lib/video.c
View File

@ -2,28 +2,33 @@
#include "video.h"
#include "stdarg.h"
console vc[8] = {
{0x07,0,0,0,0,0,0,0},
{0x07,0,0,0,0,0,0,0},
{0x07,0,0,0,0,0,0,0},
{0x07,0,0,0,0,0,0,0},
{0x07,0,0,0,0,0,0,0},
{0x07,0,0,0,0,0,0,0},
{0x07,0,0,0,0,0,0,0},
{0x07,0,0,0,0,0,0,0}};
{0x07, 0, 0, 0, 0, 0, 0, 0}
,
{0x07, 0, 0, 0, 0, 0, 0, 0}
,
{0x07, 0, 0, 0, 0, 0, 0, 0}
,
{0x07, 0, 0, 0, 0, 0, 0, 0}
,
{0x07, 0, 0, 0, 0, 0, 0, 0}
,
{0x07, 0, 0, 0, 0, 0, 0, 0}
,
{0x07, 0, 0, 0, 0, 0, 0, 0}
,
{0x07, 0, 0, 0, 0, 0, 0, 0}
};
u8 usedvc = 0;
/*******************************************************************************/
/* Fixe l'attribut courant */
void setattrib(u8 att)
{
static const u8 ansitovga[] =
{
static const u8 ansitovga[] = {
0, 4, 2, 6, 1, 5, 3, 7
};
u8 tempattr;
@ -39,13 +44,10 @@ void setattrib(u8 att)
tempattr = 0;
else if (att == 1)
tempattr |= 0x08; /* Forte intensité */
else if(att >= 30 && att <= 37)
{
else if (att >= 30 && att <= 37) {
att = ansitovga[att - 30];
tempattr = (tempattr & ~0x07) | att; /* couleur de premier plan */
}
else if(att >= 40 && att <= 47)
{
} else if (att >= 40 && att <= 47) {
att = ansitovga[att - 40] << 4;
tempattr = (tempattr & ~0x70) | att; /* couleur de fond */
}
@ -59,20 +61,17 @@ void setattrib(u8 att)
bool makeansi(u8 c)
{
/* state machine to handle the escape sequences */
switch(vc[usedvc].ansi)
{
switch (vc[usedvc].ansi) {
case 0:
/* ESC -- next state */
if(c == 0x1B)
{
if (c == 0x1B) {
vc[usedvc].ansi++;
return 1; /* "I handled it" */
}
break;
/* ESC */
case 1:
if(c == '[')
{
if (c == '[') {
vc[usedvc].ansi++;
vc[usedvc].param1 = 0;
return 1;
@ -80,22 +79,17 @@ bool makeansi(u8 c)
break;
/* ESC[ */
case 2:
if(isdigit(c))
{
if (isdigit(c)) {
vc[usedvc].param1 = vc[usedvc].param1 * 10 + c - '0';
return 1;
}
else if(c == ';')
{
} else if (c == ';') {
vc[usedvc].ansi++;
vc[usedvc].param2 = 0;
return 1;
}
/* ESC[2J -- efface l'ecran */
else if(c == 'J')
{
if(vc[usedvc].param1 == 2)
{
else if (c == 'J') {
if (vc[usedvc].param1 == 2) {
fill(vc[usedvc].attrib);
vc[usedvc].cursX = 0;
vc[usedvc].cursY = 0;
@ -105,44 +99,43 @@ bool makeansi(u8 c)
}
}
/* ESC[num1m -- met l'attribut num1 */
else if(c == 'm')
{
else if (c == 'm') {
setattrib(vc[usedvc].param1);
vc[usedvc].ansi = 0;
return 1;
}
/* ESC[num1A -- bouge le curseur de num1 vers le haut */
else if(c == 'A')
{
else if (c == 'A') {
vc[usedvc].cursY -= vc[usedvc].param1;
if (vc[usedvc].cursY<0) vc[usedvc].cursY=0;
if (vc[usedvc].cursY < 0)
vc[usedvc].cursY = 0;
vc[usedvc].ansi = 0;
gotoscr(vc[usedvc].cursX, vc[usedvc].cursY);
return 1;
}
/* ESC[num1B -- bouge le curseur de num1 vers le bas */
else if(c == 'B')
{
else if (c == 'B') {
vc[usedvc].cursY += vc[usedvc].param1;
if (vc[usedvc].cursY>=getyres()-1) vc[usedvc].cursY=getyres();
if (vc[usedvc].cursY >= getyres() - 1)
vc[usedvc].cursY = getyres();
vc[usedvc].ansi = 0;
gotoscr(vc[usedvc].cursX, vc[usedvc].cursY);
return 1;
}
/* ESC[num1D -- bouge le curseur de num1 vers la gauche */
else if(c == 'D')
{
else if (c == 'D') {
vc[usedvc].cursX -= vc[usedvc].param1;
if (vc[usedvc].cursX<0) vc[usedvc].cursX=0;
if (vc[usedvc].cursX < 0)
vc[usedvc].cursX = 0;
vc[usedvc].ansi = 0;
gotoscr(vc[usedvc].cursX, vc[usedvc].cursY);
return 1;
}
/* ESC[num1C -- bouge le curseur de num1 vers la droite */
else if(c == 'C')
{
else if (c == 'C') {
vc[usedvc].cursX += vc[usedvc].param1;
if (vc[usedvc].cursX>=getxres()-1) vc[usedvc].cursX=getxres();
if (vc[usedvc].cursX >= getxres() - 1)
vc[usedvc].cursX = getxres();
vc[usedvc].ansi = 0;
gotoscr(vc[usedvc].cursX, vc[usedvc].cursY);
return 1;
@ -150,20 +143,16 @@ bool makeansi(u8 c)
break;
/* ESC[num1; */
case 3:
if(isdigit(c))
{
if (isdigit(c)) {
vc[usedvc].param2 = vc[usedvc].param2 * 10 + c - '0';
return 1;
}
else if(c == ';')
{
} else if (c == ';') {
vc[usedvc].ansi++;
vc[usedvc].param3 = 0;
return 1;
}
/* ESC[num1;num2H ou ESC[num1;num2f-- bouge le curseur en num1,num2 */
else if((c == 'H')||(c == 'f'))
{
else if ((c == 'H') || (c == 'f')) {
/* Remet la position du curseur matériel a num1,num2 */
gotoscr(vc[usedvc].param2, vc[usedvc].param1);
/* Remet la position du curseur logiciel a num1,num2 */
@ -173,8 +162,7 @@ bool makeansi(u8 c)
return 1;
}
/* ESC[num1;num2m -- met les attributs num1,num2 */
else if(c == 'm')
{
else if (c == 'm') {
setattrib(vc[usedvc].param1);
setattrib(vc[usedvc].param2);
vc[usedvc].ansi = 0;
@ -183,14 +171,12 @@ bool makeansi(u8 c)
break;
/* ESC[num1;num2;num3 */
case 4:
if(isdigit(c))
{
if (isdigit(c)) {
vc[usedvc].param3 = vc[usedvc].param3 * 10 + c - '0';
return 1;
}
/* ESC[num1;num2;num3m -- met les attributs num1,num2,num3 */
else if(c == 'm')
{
else if (c == 'm') {
setattrib(vc[usedvc].param1);
setattrib(vc[usedvc].param2);
setattrib(vc[usedvc].param3);
@ -227,20 +213,24 @@ void putchar(u8 thechar)
{
showpage(usedvc);
setpage(usedvc);
if(makeansi(thechar)) return;
switch (thechar)
{
if (makeansi(thechar))
return;
switch (thechar) {
case 0x11:
if (vc[usedvc].cursY>0) vc[usedvc].cursY--;
if (vc[usedvc].cursY > 0)
vc[usedvc].cursY--;
break;
case 0x12:
if (vc[usedvc].cursY<getyres()-1) vc[usedvc].cursY++;
if (vc[usedvc].cursY < getyres() - 1)
vc[usedvc].cursY++;
break;
case 0x13:
if (vc[usedvc].cursX>0) vc[usedvc].cursX--;
if (vc[usedvc].cursX > 0)
vc[usedvc].cursX--;
break;
case 0x14:
if (vc[usedvc].cursX<getxres()-1) vc[usedvc].cursX++;
if (vc[usedvc].cursX < getxres() - 1)
vc[usedvc].cursX++;
break;
case 0x2:
vc[usedvc].cursX = 0;
@ -254,19 +244,16 @@ case 0x19:
vc[usedvc].cursX = getxres() - 1;
break;
case '\b':
if (vc[usedvc].cursX==0)
{
if (vc[usedvc].cursY>0)
{
if (vc[usedvc].cursX == 0) {
if (vc[usedvc].cursY > 0) {
vc[usedvc].cursX = getxres() - 1;
vc[usedvc].cursY--;
}
}
else
{
} else {
vc[usedvc].cursX--;
}
showchar(vc[usedvc].cursX,vc[usedvc].cursY,' ',vc[usedvc].attrib);
showchar(vc[usedvc].cursX, vc[usedvc].cursY, ' ',
vc[usedvc].attrib);
break;
case '\t':
vc[usedvc].cursX = (vc[usedvc].cursX + 8) & ~(8 - 1);
@ -279,20 +266,18 @@ vc[usedvc].cursX=0;
vc[usedvc].cursY++;
break;
default:
if (thechar>=' ')
{
showchar(vc[usedvc].cursX,vc[usedvc].cursY,thechar,vc[usedvc].attrib);
if (thechar >= ' ') {
showchar(vc[usedvc].cursX, vc[usedvc].cursY, thechar,
vc[usedvc].attrib);
vc[usedvc].cursX++;
}
break;
}
if (vc[usedvc].cursX>=getxres())
{
if (vc[usedvc].cursX >= getxres()) {
vc[usedvc].cursX = 0;
vc[usedvc].cursY++;
}
if (vc[usedvc].cursY>=getyres())
{
if (vc[usedvc].cursY >= getyres()) {
scroll(1, vc[usedvc].attrib);
vc[usedvc].cursY = getyres() - 1;
}
@ -307,8 +292,7 @@ void print(u8* string)
{
u8 *source;
source = string;
while(*source!=0)
{
while (*source != 0) {
putchar(*source++);
}
}
@ -327,16 +311,12 @@ void printf (const u8 *string, ...)
bool signe;
long num;
va_start(ap, string);
while(*string!= 0)
{
while (*string != 0) {
if (*string != '%')
putchar(*string);
else
{
switch (*++string)
{
else {
switch (*++string) {
case 'c':
putchar(va_arg(ap, int));
break;
@ -347,13 +327,11 @@ showstring:
num = va_arg(ap, int);
pointer = buffer + 50 - 1;
*pointer = '\0';
if ((signe==1)&&(num<0))
{
if ((signe == 1) && (num < 0)) {
num = -num;
signe++;
}
do
{
do {
unsigned long temp;
temp = (unsigned long)num % radix;
pointer--;
@ -364,8 +342,10 @@ showstring:
num = (unsigned long)num / radix;
}
while (num != 0);
if (signe>1) *(--pointer)='-';
while (*pointer!=0) putchar(*pointer++);
if (signe > 1)
*(--pointer) = '-';
while (*pointer != 0)
putchar(*pointer++);
break;
case 'o':
radix = 8;
@ -382,8 +362,10 @@ showstring:
goto showstring;
case 's':
pointer = va_arg(ap, u8 *);
if (!pointer) pointer="(null)";
while (*pointer!=0) putchar(*pointer++);
if (!pointer)
pointer = "(null)";
while (*pointer != 0)
putchar(*pointer++);
break;
case '%':
putchar('%');
@ -399,4 +381,3 @@ showstring:
}
/*******************************************************************************/

6
system/makefile
View File

@ -1,4 +1,3 @@
FINALCC=gcc -O4 -nostdinc -ffreestanding -fno-builtin -fomit-frame-pointer -Wall -w -I ../include -m32 -c -o
GCC=gcc -O0 -g -nostdinc -ffreestanding -fno-builtin -fomit-frame-pointer -Wall -w -I ../include -m32 -c -o
LINK=ld -m elf_i386 -T linker.lds -e main -o
@ -7,9 +6,8 @@ all: system.sys
sync
system.sys:
nasm -f elf -o system.o system.asm
$(GCC) systemc.o system.c
$(LINK) system.sys systemc.o system.o ../lib/libs.o
$(GCC) system.o system.c
$(LINK) system.sys system.o ../lib/libs.o
clean:
rm -f *.o

5
system/system.asm
View File

@ -1,5 +0,0 @@
[BITS 32]
SECTION .text

68
system/system.c
View File

@ -1,6 +1,6 @@
#include "vga.h"
#include "video.h"
#include "idt.h"
#include "interrupts.h"
#include "timer.h"
#include "keyboard.h"
#include "mouse.h"
@ -12,7 +12,12 @@
static cpuinfo cpu;
static u8 noproc[] = "\033[31mInconnu\033[0m\000";
static u8 okmsg[]="\033[99C\033[8D\033[37m\033[1m[ \033[32mOK\033[37m ]\033[0m\000";
static u8 warnmsg[] =
"\033[99C\033[8D\033[37m\033[1m[ \033[36mNON\033[37m ]\033[0m\000";
static u8 okmsg[] =
"\033[99C\033[8D\033[37m\033[1m[ \033[32mOK\033[37m ]\033[0m\000";
static u8 errormsg[] =
"\033[99C\033[8D\033[37m\033[1m[\033[31mERREUR\033[37m]\033[0m\000";
static u8 key = 0;
void ok()
@ -21,70 +26,63 @@ void ok()
return;
}
int main(void) {
void warning()
{
print(warnmsg);
return;
}
void error()
{
print(errormsg);
return;
}
int main(void)
{
cli();
setvmode(0x02);
/* Efface l'ecran */
print("\033[2J\000");
printf(ansilogo);
print("\033[0mNoyau charge en memoire\000");
ok();
print("Initilisation de la table d'interruption\000");
print("\033[37m\033[0m -Initilisation des interruptions\000");
initidt();
ok();
print("Initialisation du controleur d'interruption\000");
initpic();
sti();
ok();
print("Installation du handler timer\000");
print(" -Installation du handler timer (IRQ 0)\000");
setidt((u32) timer, 0x20, INTGATE, 32);
ok();
print("Activation de l'IRQ 0\000");
enableirq(0);
ok();
print("Installation du handler clavier\000");
print(" -Installation du handler clavier (IRQ 1)\000");
setidt((u32) keyboard, 0x20, INTGATE, 33);
ok();
print("Activation de l'IRQ 1\000");
enableirq(1);
ok();
print("Installation du handler souris\000");
print(" -Installation du handler souris (IRQ12+Cascade IRQ2)\000");
setidt((u32) mouse, 0x20, INTGATE, 100);
ok();
print("Initialisation du controleur souris :\000");
if (initmouse()==1)
print(" \033[1m\033[32mSouris Presente\033[0m\000");
else
print(" \033[1m\033[31mSouris non detecte\033[0m\000");
ok();
print("Activation de l'IRQ 2 (Controleur esclave)\000");
enableirq(2);
ok();
print("Activation de l'IRQ 12\000");
enableirq(12);
if (initmouse() != 1)
warning();
else
ok();
strcpy(&noproc, &cpu.detectedname);
getcpuinfos(&cpu);
printf("Processeur detecte\r Revision \t:%d\r Modele \t:%d\r Famille \t:%d\r Nom cpuid\t:%s\rJeux\t:%s\000",cpu.stepping,cpu.models,cpu.family,&cpu.detectedname,&cpu.techs);
printf
(" -Detection du processeur\r\033[1m Revision \t:%d\r Modele \t:%d\r Famille \t:%d\r Nom cpuid\t:%s\rJeux d'instruction\t:%s\033[0m\000",
cpu.stepping, cpu.models, cpu.family, &cpu.detectedname,
&cpu.techs);
ok();
while(1)
{
while (1) {
key = waitascii();
putchar(key);
}
}