diff --git a/Graphisme/logo.png b/Graphisme/logo.png new file mode 100644 index 0000000..029ae7c Binary files /dev/null and b/Graphisme/logo.png differ diff --git a/LICENSE.md b/LICENSE.md new file mode 100644 index 0000000..7e5358d --- /dev/null +++ b/LICENSE.md @@ -0,0 +1,167 @@ +## GNU LESSER GENERAL PUBLIC LICENSE + Version 3, 29 June 2007 + +![logo](https://www.gnu.org/graphics/lgplv3-with-text-154x68.png) + + Copyright (C) 2007 Free Software Foundation, Inc. + Everyone is permitted to copy and distribute verbatim copies + of this license document, but changing it is not allowed. + + + This version of the GNU Lesser General Public License incorporates +the terms and conditions of version 3 of the GNU General Public +License, supplemented by the additional permissions listed below. + + 0. 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Combined Libraries. + + You may place library facilities that are a work based on the +Library side by side in a single library together with other library +facilities that are not Applications and are not covered by this +License, and convey such a combined library under terms of your +choice, if you do both of the following: + + a) Accompany the combined library with a copy of the same work based + on the Library, uncombined with any other library facilities, + conveyed under the terms of this License. + + b) Give prominent notice with the combined library that part of it + is a work based on the Library, and explaining where to find the + accompanying uncombined form of the same work. + + 6. Revised Versions of the GNU Lesser General Public License. + + The Free Software Foundation may publish revised and/or new versions +of the GNU Lesser General Public License from time to time. Such new +versions will be similar in spirit to the present version, but may +differ in detail to address new problems or concerns. + + Each version is given a distinguishing version number. If the +Library as you received it specifies that a certain numbered version +of the GNU Lesser General Public License "or any later version" +applies to it, you have the option of following the terms and +conditions either of that published version or of any later version +published by the Free Software Foundation. If the Library as you +received it does not specify a version number of the GNU Lesser +General Public License, you may choose any version of the GNU Lesser +General Public License ever published by the Free Software Foundation. + + If the Library as you received it specifies that a proxy can decide +whether future versions of the GNU Lesser General Public License shall +apply, that proxy's public statement of acceptance of any version is +permanent authorization for you to choose that version for the +Library. diff --git a/README.md b/README.md new file mode 100644 index 0000000..33b9b4f --- /dev/null +++ b/README.md @@ -0,0 +1,60 @@ +![logo](https://github.com/dahut87/cos2000v2/raw/master/Graphisme/logo.png) + +## Présentation du projet + +### Qu'est ce que COS2000 ? + +COS2000 est un système d'exploitation minimaliste qui vise essentiellement un objectif pédagogique. +Il s'agit avant tout du travail d'un passionné de programmation système. + +Le système est développé essentiellement en langage C mais il comporte aussi un peu d'assembleur X86. + +#### Qu'est ce qu'un système d'exploitation ? + +Il s'agit du logiciel principal qui anime votre ordinateur. Il a pour fonctions principales : + +* Piloter des périphériques tels que souris, clavier, écran, imprimante...etc; +* Gérer des fichiers qui sont produit et exploités par des applications; +* Coordonner l'accès aux ressources par plusieurs utilisateurs; +* Détection et récupération des dysfonctionnements; +* Surveiller les performances et assurer une gestion optimale des ressources systèmes. + +Sans système d'exploitation votre ordinateur est inopérant: c'est une boite vide ! + +#### Comment utiliser COS2000 ? + +COS2000 n'a pas pour but d'être utilisé en production. Il s'agit d'un système en cours de +développement que vous pouvez néanmoins tester sur un ordinateur physique ou de préférence sur une machine virtuelle. +Il est nécessaire de compiler le système avant de démarrer celui-ci à partir d'un périphérique amovible (clé usb). + +#### Sur quel ordinateur fonctionne t'il ? + +COS2000 est compatible avec tout ordinateur compatible PC comprenant un processeur avec FPU intégré, +gestion de la mémoire paginée et mode protégé : Intel Pentium et supérieur. + +#### Ai-je le droit de le copier, de le modifier, de le réutiliser, de le vendre ? + +COS2000 est sous licence LGPL v3.0, en simplifiant un peu : + +* COPIER - OUI +* MODIFIER - OUI +* REUTILISER - OUI en citant l'auteur +* VENDRE - NON + +Les détails se trouvent dans le fichier `LICENSE.md` + +![logo](https://www.gnu.org/graphics/lgplv3-with-text-154x68.png) + +### En savoir plus... + +#### Historique du projet +* Version 2.2fr - C en mode protégé Reprise du projet +* Version 2.1fr - C en mode protégé Abandon du projet +* Version 2.0 - C en mode protégé VGA text+pmode +* Version 1.x - Assembleur en mode réel + +> “La connaissance s'acquiert par l'expérience, +> tout le reste n'est que de l'information.. +> +> ― Albert Einstein +> ― Mathématicien, Physicien \ No newline at end of file diff --git a/boot/boot12.asm b/boot/boot12.asm new file mode 100644 index 0000000..6a68b40 --- /dev/null +++ b/boot/boot12.asm @@ -0,0 +1,274 @@ +[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 1 ;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 224 ;Taille du répertoire racine +Sectors_Per_Disk dw 2880 ;Nombre secteurs du volume si < 32 Mo +Media_Descriptor db 0xF0 ;Descripteur de média +Sectors_Per_Fat dw 9 ;Nombre secteurs/FAT +Sectors_Per_Track dw 18 ;Nombre secteurs/piste +Heads_Number dw 2 ;Nombre de tete de lecture/écriture +Sectors_Hidden dd 0 ;Nombre de secteurs cachés +Sectors_Per_Disk2 dd 0 ;Nombre secteurs du volume si > 32 Mo +Boot_Drive db 0 ;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 "FAT12 " ;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 + mov cx,[Reserved_Sectors] + add cx,[Sectors_Hidden] + adc cx,[Sectors_Hidden+2] + mov di,Fat_Buffer + call ReadSector + jc Boot_Error + xor ax,ax + mov al,[Fats_Number] + mov bx,[Sectors_Per_Fat] + mul bx + add cx,ax + mov ax,32 + mul word [Fits_Number] + div word [Sectors_Size] + add ax,cx + sub ax,2 + mov word [Serial_Number],ax + 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 cx + jmp Find_System +System_Found: + 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,0x0FF0 + jae Finish_Loading + push cx + add cx,word [Serial_Number] + call ReadSector + pop cx + jc near Boot_Error + call ShowString + add di,[Sectors_Size] + call NextFatGroup + jc near Boot_Error + jmp Resume_Loading +Finish_Loading: + call Boot_Ok + retf + +;====================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 + xor dx,dx + 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: + popa + ret + +;===================NEXTFATGROUP====================== +;Renvoie en CX le groupe qui succède dans la FAT le groupe CX +;-> CX +;<- +;===================================================== +NextFatGroup: + push bx + push dx + push di + mov ax,cx + mov bx,ax + and bx,0000000000000001b + shr ax,1 + mov cx,3 + mul cx + mov di,Fat_Buffer + add di,ax + cmp bx,0 + jnz Even_Group +Odd_Group: + mov dx,[di] + and dx,0x0FFF + mov cx,dx + jmp Next_Group_Found +Even_Group: + mov dx,[di+1] + and dx,0xFFF0 + shr dx,4 + mov cx,dx +Next_Group_Found: + pop di + pop dx + pop bx + ret + +;======================SHOWSTR======================== +;Affiche la chaine de caractère pointé par ds:si à l'écran +;-> DS, SI +;<- Flag Carry si erreur +;===================================================== +ShowString: + pusha +Next_Char: + lodsb + or al,al + jz End_Show + mov ah,0x0E + mov bx,0x07 + int 0x10 + jmp Next_Char +End_Show: + popa + ret + +;======================DETECTCPU====================== +;Detecte si le processeur est un 386 au mini +;-> +;<- Flag Carry si erreur +;===================================================== +;Detect_Cpu: +; push ax ; test if 8088/8086 is present (flag bits 12-15 will be set) +; xor ah,ah ; ah = 0 +; push ax ; copy ax into the flags +; popf ; with bits 12-15 clear +; pushf ; Read flags back into ax +; pop ax +; and ah,0xF0 ; check if bits 12-15 are set +; cmp ah,0xF0 +; je No_386 ; no 386 detected (8088/8086 present) +; ; check for a 286 (bits 12-15 are clear) +; mov ah,0xF0 ; set bits 12-15 +; push ax ; copy ax onto the flags +; popf +; pushf ; copy the flags into ax +; pop ax +; and ah,0xF0 ; check if bits 12-15 are clear +; jz No_386 ; no 386 detected (80286 present) +; clc +; ret +;No_386: +; stc +; ret + +times 510-($-$$) db ' ' + +dw 0xAA55 + +Buffer equ $ +Fat_Buffer equ $+512 + +section .bss + +;Buffer resb 512 +;Fat_Buffer resb 10000 \ No newline at end of file diff --git a/boot/boot16.asm b/boot/boot16.asm new file mode 100644 index 0000000..813f14c --- /dev/null +++ b/boot/boot16.asm @@ -0,0 +1,270 @@ +[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 $+26+512 + +section .bss + +%include "echs.h" + +;ECHS_Block resb 24 +;Buffer resb 512 +;Fat_Buffer resb 10000 \ No newline at end of file diff --git a/boot/bootcp.asm b/boot/bootcp.asm new file mode 100644 index 0000000..6a32fa9 --- /dev/null +++ b/boot/bootcp.asm @@ -0,0 +1,88 @@ +[BITS 16] +[ORG 0x100] + +section .text + +start: + mov ah,09 + mov dx,msg + int 0x21 + cmp byte [0x80],2 + jne near error + mov ax,0x3D02 + mov dx,name + int 0x21 + jc near error + mov bx,ax + mov ax,0x4202 + xor cx,cx + xor dx,dx + int 0x21 + jc error + cmp dx,0 + jne error + cmp ax,512 + jne error + mov ax,0x4200 + xor cx,cx + xor dx,dx + int 0x21 + jc error + mov ah,0x3F + mov cx,512 + mov dx,buffer2 + int 0x21 + jc error + cmp word [buffer2+510],0xAA55 + jne error + mov al,[0x82] + cmp al,'z' + ja error + cmp al,'a' + jb verif + sub al,'a'-'A' +verif: + cmp al,'Z' + ja error + cmp al,'A' + jb error + sub al,'A' + mov bp,ax + mov [segs],cs + mov cx,0xFFFF + mov bx,packet + int 0x25 + pop ax + mov si,buffer+3 + mov di,buffer2+3 + mov cx,59 + rep movsb + mov ax,bp + mov word [offs],buffer2 + mov cx,0xFFFF + mov bx,packet + int 0x26 + pop ax + jc error + mov ah,09 + mov dx,msgok + int 0x21 + ret + +error: + mov ah,09 + mov dx,msgerror + int 0x21 + ret + + +packet dd 0 + dw 1 +offs dw buffer +segs dw 0 +name db "boot.bin",0 +msg db 0x0D,0x0A,"CopyBoot V1.0 by nico",0x0D,0x0A,"Copyright 2002",0x0D,0x0A,'$' +msgok db "Installation of bootsector realized",0x0D,0x0A,'$' +msgerror db "Installation of bootsector failed",0x0D,0x0A,'$' +buffer equ $ +buffer2 equ $+512 \ No newline at end of file diff --git a/boot/boottest.asm b/boot/boottest.asm new file mode 100644 index 0000000..3e61ceb --- /dev/null +++ b/boot/boottest.asm @@ -0,0 +1,217 @@ +[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 1 ;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 224 ;Taille du répertoire racine +Sectors_Per_Disk dw 2880 ;Nombre secteurs du volume si < 32 Mo +Media_Descriptor db 0xF0 ;Descripteur de média +Sectors_Per_Fat dw 9 ;Nombre secteurs/FAT +Sectors_Per_Track dw 18 ;Nombre secteurs/piste +Heads_Number dw 2 ;Nombre de tete de lecture/écriture +Sectors_Hidden dd 0 ;Nombre de secteurs cachés +Sectors_Per_Disk2 dd 0 ;Nombre secteurs du volume si > 32 Mo +Boot_Drive db 0 ;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 "FAT12 " ;Type de système de fichiers + +Loading_Ok db "Secteur en execution",0x0A,0x0D,0 +Reg_Names db "cs ",0 + db "ds ",0 + db "es ",0 + db "fs ",0 + db "gs ",0 + db "ss ",0 + db "eax",0 + db "ebx",0 + db "ecx",0 + db "edx",0 + db "esi",0 + db "edi",0 + db "esp",0 + db "ebp",0 + db "eip",0 + db "FLG",0 + db "cr0",0 + db "cr1",0 + db "cr2",0 + db "cr3",0 + +Return db 0x0A,0x0D,0 + +Numbers equ 20 + +boot: + mov [cs:segms],cs + mov [cs:segms+4],ds + mov [cs:segms+8],es + mov [cs:segms+12],fs + mov [cs:segms+16],gs + mov [cs:segms+20],ss + mov [cs:segms+24],eax + mov [cs:segms+28],ebx + mov [cs:segms+32],ecx + mov [cs:segms+36],edx + mov [cs:segms+40],esi + mov [cs:segms+44],edi + mov [cs:segms+48],esp + mov [cs:segms+52],ebp +IP: + mov word [cs:segms+56],IP + mov word [cs:segms+58],0 + pushfd + pop dword [cs:segms+60] + mov eax,cr0 + mov [cs:segms+64],eax + mov eax,cr0 + mov [cs:segms+68],eax + mov eax,cr2 + mov [cs:segms+72],eax + mov eax,cr3 + mov [cs:segms+76],eax + cli + mov ax,0x9000 + mov ss,ax + mov sp,0xFFFF + sti + push cs + push cs + pop es + pop ds + mov si,Loading_Ok + call ShowString + xor bx,bx +Show_All_Regs: + mov si,Reg_Names + shl bx,2 + add si,bx + call ShowString + mov al,":" + call ShowChar + mov si,segms + mov edx,[bx+si] + shr bx,2 + mov cx,32 + cmp bx,6 + jae Reg_Size_32 + mov cx,16 +Reg_Size_32: + call ShowHex + mov si,Return + call ShowString + inc bx + cmp bx,Numbers + jb Show_All_Regs +Halting_Cpu: + jmp Halting_Cpu + +;==================SHOWHEX================== +;Affiche un nombre hexadécimal EDX de taille CX aprés le curseur +;-> EDX un entier, CX la taille +;<- +;=========================================== +ShowHex: + push ax + push bx + push cx + push edx + mov ax,cx + shr ax,2 + sub cx,32 + neg cx + shl edx,cl + xchg ax,cx +Hex_Decompose: + rol edx,4 + mov bx,dx + and bx,0x0F + mov al,[cs:bx+Hex_Table] + call ShowChar + dec cl + jnz Hex_Decompose + pop edx + pop cx + pop bx + pop ax + ret +Hex_Table db "0123456789ABCDEF" + +;===================CLS==================== +;Efface l"écran +;-> +;<- +;========================================== +Cls: + push ax + mov ax,0x0003 + int 0x10 + pop ax + ret + +;================SHOWCHAR================== +;Affiche un caractère pointé dans AL +;-> AL +;<- +;========================================== +ShowChar: + push ax + push bx + mov ah,0x0E + mov bx,0x07 + int 0x10 + pop bx + pop ax + ret + +;===================SHOWSTR================ +;Affiche une chaine de caractère pointé par SI +;-> SI pointe une chaine +;<- +;========================================== +ShowString: + push ax + push bx + push si + cld +Show_Next_Char: + lodsb + or al,al + jz String_Showed + call ShowChar + jmp Show_Next_Char +String_Showed: + pop si + pop bx + pop ax + ret + +;=================WAITKEY================= +;Attend l"appuie d"une touche et +;renvoie en AL la touche appuyée +;-> +;<- AL +;========================================= +WaitKey: + mov ax,0x00 + int 0x16 + ret + +times 510-($-$$) db ' ' + +dw 0xAA55 + +section .bss + +segms resb 10000 + diff --git a/boot/echs.h b/boot/echs.h new file mode 100644 index 0000000..fc1bba9 --- /dev/null +++ b/boot/echs.h @@ -0,0 +1,10 @@ +struc echs +Sizes resb 1 +Reserve resb 1 +NumSectors resw 1 +Adressoff resw 1 +Adressseg resw 1 +SectorLow resw 1 +SectorHigh resw 1 +Dummy resq 1 +endstuc diff --git a/boot/makefile b/boot/makefile new file mode 100644 index 0000000..10cbc4f --- /dev/null +++ b/boot/makefile @@ -0,0 +1,24 @@ +all: makall + +makall: boot12.bin boot16.bin boottest.bin bootcp.com + sync + +boot12.bin: + nasm -f bin -o boot12.bin boot12.asm + +boot16.bin: + nasm -f bin -o boot16.bin boot16.asm + +boottest.bin: + nasm -f bin -o boottest.bin boottest.asm + +bootcp.com: + nasm -f bin -o bootcp.com bootcp.asm + +clean: + rm -f *.o + rm -f *.bin + rm -f *.sys + rm -f *.com + + diff --git a/drivers/makefile b/drivers/makefile new file mode 100644 index 0000000..8b186b2 --- /dev/null +++ b/drivers/makefile @@ -0,0 +1,13 @@ +all: makall + +makall: vga/vga.o + sync + +clean: + (cd vga; make clean) + +vga/vga.o: + (cd vga; make) + + + diff --git a/drivers/vga/makefile b/drivers/vga/makefile new file mode 100644 index 0000000..75edc00 --- /dev/null +++ b/drivers/vga/makefile @@ -0,0 +1,17 @@ +FREEC=gcc -O4 -nostdinc -ffreestanding -fno-builtin -fomit-frame-pointer -Wall -I ../../Include -c -o +PARTIAL=-r +OBJS= vgahard.o \ + vgatxt.o + +all: + nasm -f elf -o vgahard.o vgahard.asm + + $(FREEC) vgatxt.o vgatxt.c + + ld $(PARTIAL) -o vga.o $(OBJS) + +clean: + rm -f *.o + rm -f *.bin + + diff --git a/drivers/vga/vgahard.asm b/drivers/vga/vgahard.asm new file mode 100644 index 0000000..e990554 --- /dev/null +++ b/drivers/vga/vgahard.asm @@ -0,0 +1,5 @@ +[BITS 32] + + + SECTION .text + \ No newline at end of file diff --git a/drivers/vga/vgatxt.c b/drivers/vga/vgatxt.c new file mode 100644 index 0000000..959ed06 --- /dev/null +++ b/drivers/vga/vgatxt.c @@ -0,0 +1 @@ +#include \ No newline at end of file diff --git a/include/asm.h b/include/asm.h new file mode 100644 index 0000000..cc8ccf7 --- /dev/null +++ b/include/asm.h @@ -0,0 +1,23 @@ +#include "types.h" +#define sti() __asm__ ("sti"::) +#define cli() __asm__ ("cli"::) +#define nop() __asm__ ("nop"::) +#define iret() __asm__ ("iret"::) + +#define outb(port,value) \ + asm volatile ("outb %%al,%%dx"::"d" (port), "a" (value)); + +#define outw(port,value) \ + asm volatile ("outb %%ax,%%dx"::"d" (port), "a" (value)); + +#define inb(port) ({ \ + u8 _v; \ + asm volatile ("inb %%dx,%%al" : "=a" (_v) : "d" (port)); \ + _v; \ +}) + +#define inw(port) ({ \ + u16 _v; \ + asm volatile ("inw %%dx,%%ax" : "=a" (_v) : "d"(port)); \ + _v; \ +}) \ No newline at end of file diff --git a/include/string.h b/include/string.h new file mode 100644 index 0000000..ec199fb --- /dev/null +++ b/include/string.h @@ -0,0 +1,3 @@ +#include "types.h" + +void memset(void *dst, u8 val, u16 count,u32 size); diff --git a/include/types.h b/include/types.h new file mode 100644 index 0000000..451dbd8 --- /dev/null +++ b/include/types.h @@ -0,0 +1,11 @@ +#ifndef I386_TYPE +#define I386_TYPE +typedef unsigned char u8; +typedef unsigned short u16; +typedef unsigned int u32; +typedef unsigned char uchar; +typedef int bool; +#define true 1; +#define false 0; +#endif + diff --git a/include/vga.h b/include/vga.h new file mode 100644 index 0000000..38bfae4 --- /dev/null +++ b/include/vga.h @@ -0,0 +1,10 @@ +#include "types.h" + +#define TEXTSCREEN 0xB8000 /* debut de la memoire video texte*/ +#define GRPHSCREEN 0xA0000 /* debut de la memoire video graphique*/ + +typedef u8 mode_def[64]; + +void print (u8* string); +void cls (void); +u16 setvmode(u8); diff --git a/install/iflop/iflop.asm b/install/iflop/iflop.asm new file mode 100644 index 0000000..d01f2e9 --- /dev/null +++ b/install/iflop/iflop.asm @@ -0,0 +1,375 @@ +;ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿ +;³ COS 2000 ³ +;³ http://www.multimania.com/cos2000 ³ +;ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´ +;³ D I S K I M A G E ³ +;ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´ +;³ Fonction : Programme permettant de r‚aliser des images dique dur d'³ +;³ une disquettes. ³ +;³ ³ +;³ Appel : Diskimge [Nom du fichier][/r][/s][/h] ³ +;³ /r restaure l'image /s sauve l'image /h aide ³ +;³ ³ +;³ Compilation : TASM boot /m4 /x ³ +;³ TLINK boot /t /x ³ +;ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´ +;³ Programmeur : Nico ³ +;³ Con‡us le : 15/07/2001 ³ +;³ Modifi‚ le : 15/07/2001 ³ +;³ Site Web : http://www.multimania.com/cos2000 ³ +;³ Copyright : libre distribution ³ +;³ E-Mail : COS2000@multimania.com ³ +;ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ + +;==========================Directive d'assemblages============================ +[BITS 16] ;Directive qui autorise la g‚n‚ration de code 16 bits +[ORG 0x100] ;Directive pour indiquer le d‚but du code + +section .text + + +;=============================Debut du programmes============================= + +start: ;Label du d‚but. + mov ah,0x09 + mov dx,msg ; + int 0x21 + mov ah,'r' + call Check + jnc restitute + mov ah,'s' + call Check + jnc save +help: + mov ah,0x09 + mov dx,helpmsg + int 0x21 + mov ax,0 + int 0x16 + ret +restitute: + mov ah,'n' + call Check + jnc nospl + mov ah,0x09 + mov dx,msg2 + int 21h + mov ax,0x00 + int 16h +nospl: + mov ah,0x09 + mov dx,res + int 0x21 + call OpenCmdLine + jc error + mov si,buffer + mov di,si + xor cx,cx +restoring: + call Read18432 + jc error + call WriteTrack ;Ecrit la piste CX sur les 2 tˆtes depuis ds:di + jc error + call ShowDot + inc cx + cmp cx,80 + jb restoring + mov ah,0x09 + mov dx,msgok + int 0x21 + ret +save: + mov ah,'n' + call Check + jnc nospl2 + mov ah,0x09 + mov dx,msg2 + int 0x21 + mov ax,0 + int 0x16 +nospl2: + mov ah,0x09 + mov dx,sav + int 0x21 + call CreateCmdLine + jc error + mov si,buffer + mov di,si + xor cx,cx +saving: + call ReadTrack ;Lit la piste CX sur 2 tˆte en es:di + jc error + call Write18432 + jc error + call ShowDot + inc cx + cmp cx,80 + jb saving + mov ah,09 + mov dx,msgok + int 0x21 + ret +error: + push cs + pop ds + call CloseCmdLine + mov ah,09 + mov dx,errormsg + int 0x21 + ret + +;Affiche un point +ShowDot: + push ax + push bx + push cx + mov bx,cx + shr bx,4 + mov al,[bx+dot] + mov ah,0x0E + mov bx,0x07 + int 0x10 + pop cx + pop bx + pop ax + ret + +;Ecrit une piste CX 2 Tˆte, depuis le buffer DS:SI +ReadTrack: + push ax + push bx + push cx + push dx + push si + push es + push ds + pop es + xchg ch,cl + xor dx,dx + xor cl,cl + inc cl + mov bx,si + mov si,3 +retry: + mov ax,0x0212 + int 13h + jnc done + dec si + jnz retry + jmp dead +done: + add bx,9216 + inc dh + cmp dh,1 + je retry +dead: + pop es + pop si + pop dx + pop cx + pop bx + pop ax + ret + +;Lit une piste CX sur deux tˆte dans le buffer ES:DI +WriteTrack: + push ax + push bx + push cx + push dx + push si + xchg ch,cl + xor dx,dx + xor cl,cl + inc cl + mov bx,di + mov si,3 +retry2: + mov ax,0x0312 + int 0x13 + jnc done2 + dec si + jnz retry2 +done2: + add bx,9216 + inc dh + cmp dh,1 + je retry2 +dead2: + pop si + pop dx + pop cx + pop bx + pop ax + ret + +;Ecrit 18432 octets depuis DS:SI dans le fichier ouvert par OpenCmdline +Write18432: + push ax + push bx + push cx + push dx + mov ah,0x40 + mov cx,18432 + mov bx,[handle] + mov dx,si + int 0x21 + pop dx + pop cx + pop bx + pop ax + ret + +;Lit 18432 octets vers ES:DI depuis le fichier ouvert par OpenCmdline +Read18432: + push ax + push bx + push cx + push dx + mov ah,0x3F + mov cx,18432 + mov bx,[handle] + mov dx,si + int 0x21 + pop dx + pop cx + pop bx + pop ax + ret + +;Ouvre la ligne de commande +OpenCmdLine: + push ax + push bx + push dx + mov bl,[0x80] + xor bh,bh + add bx,0x80 + mov byte [bx],0 + mov ax,0x3D00 + mov dx,0x82 + int 0x21 + mov [handle],ax + pop dx + pop bx + pop ax + ret + +;Cr‚e un fichier du nom de la ligne de commande +CreateCmdLine: + push ax + push bx + push cx + push dx + mov bl,[0x80] + xor bh,bh + add bx,0x80 + mov byte [bx],0 + mov ah,0x3C + xor cx,cx + mov dx,0x82 + int 0x21 + mov [handle],ax + pop dx + pop cx + pop bx + pop ax + ret + +;Ferme le fichier pr‚c‚damment ouvert avec OpenCmdline +CloseCmdLine: + push ax + push bx + mov bx,[handle] + mov ah,0x3E + int 0x21 + pop bx + pop ax + ret + +;Recherche le commutateur AH dans la ligne de commande si existant retourne FC=True. +Check: + push ax + push cx + push di + mov di,0x80 + mov cl,[di] + cmp cl,0 + je notfound2 + xor ch,ch + mov al,'/' +search: + cmp cx,0 + je notfound + repne scasb + cmp [di],ah + jnz search + jmp okfound +notfound: + sub ah,'a'-'A' + mov di,0x80 + mov cl,[di] +search2: + cmp cx,0 + je notfound2 + repne scasb + cmp [di],ah + jnz search2 +okfound: + mov word [di-2],0 + clc + pop di + pop cx + pop ax + ret +notfound2: + stc + pop di + pop cx + pop ax + ret + +res db "Restauration en cours",0x0A,0x0D,0x0A,0x0D,'$' +sav db "Sauvegarde en cours",0x0A,0x0D,0x0A,0x0D,'$' +dot db " °±²Û" +handle dw 0 +msg db 0x0A,0x0D,"IFlop V1.0",0x0A,0x0D + db "Ecrit par Nico",0x0A,0x0D + db "http://www.multimania.com/cos2000",0Ah,0Dh + db "Copyright 2000",0Ah,0Dh,'$' +msg2 db "Ins‚rez une disquette de 1.44 Mo dans le lecteur et appuyez sur une touche...",0x0A,0x0D,'$' +errormsg db 0Ah,0Dh,"Une erreur est apparue lors de la copie !",0x0A,0x0D,'$' +msgok db 0Ah,0Dh,"La copie de l'image a ‚t‚ correctement r‚alis‚e",0x0A,0x0D,'$' + +SectorsPerTrack dw 18 ;Nombre de secteur par pistes. +HeadsPerDrive dw 2 ;Nombre de t‚tes par disque. + +helpmsg: +db "ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ¿" +db "³ COS 2000 ³" +db "³ http://www.multimania.com/cos2000 ³" +db "ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´" +db "³ I F L O P ³" +db "ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´" +db "³ Fonction : Programme permettant de r‚aliser des images disque dur ³" +db "³ d'une disquettes. ³" +db "³ ³" +db "³ Appel : Iflop [Nom du fichier][/r][/s][/h] ³" +db "³ /r restaure l'image /s sauve l'image /h aide ³" +db "³ ³" +db "³ Compilation : TASM boot /m4 /x ³" +db "³ TLINK boot /t /x ³" +db "ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄ´" +db "³ Programmeur : Nico ³" +db "³ Con‡us le : 15/07/2001 ³" +db "³ Modifi‚ le : 15/07/2001 ³" +db "³ Site Web : http://www.multimania.com/cos2000 ³" +db "³ Copyright : libre distribution ³" +db "³ E-Mail : COS2000@multimania.com ³" +db "ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÙ$" + +section .bss + +[org 0x5000] + +buffer resb 512 ;Allocation de 512 octets pour contenir le secteur lu. \ No newline at end of file diff --git a/install/iflop/makefile b/install/iflop/makefile new file mode 100644 index 0000000..84d3c6c --- /dev/null +++ b/install/iflop/makefile @@ -0,0 +1,16 @@ +all: makall + +makall: iflop.com + + +iflop.com: + nasm -f bin -o iflop.com iflop.asm + +clean: + rm -f *.o + rm -f *.bin + rm -f *.sys + rm -f *.com + + + diff --git a/install/makefile b/install/makefile new file mode 100644 index 0000000..b1fb2d2 --- /dev/null +++ b/install/makefile @@ -0,0 +1,19 @@ +all: makall + +makall: + sync + +clean: + (cd iflop; make clean) + (cd mbrol; make clean) + +iflop/iflop.com: + (cd iflop; make) + +mbrol/mbrol.com: + (cd mbrol; make) + + + + + diff --git a/install/mbrol/echs.h b/install/mbrol/echs.h new file mode 100644 index 0000000..fc1bba9 --- /dev/null +++ b/install/mbrol/echs.h @@ -0,0 +1,10 @@ +struc echs +Sizes resb 1 +Reserve resb 1 +NumSectors resw 1 +Adressoff resw 1 +Adressseg resw 1 +SectorLow resw 1 +SectorHigh resw 1 +Dummy resq 1 +endstuc diff --git a/install/mbrol/loader.asm b/install/mbrol/loader.asm new file mode 100644 index 0000000..de1af90 --- /dev/null +++ b/install/mbrol/loader.asm @@ -0,0 +1,897 @@ +[BITS 16] +[ORG 0x0100] + +section .text + +start: + push eax + push ebx + push edi + push ebp + mov di, disk + call detectdisk + call cls + mov si,di + mov di, thepart + call getdriveinfos + mov [numbers],cx + mov si,di + call showdriveinfos + mov al,3 + call selection + mov word [sel],0 +waitafter: + call waitkey + cmp ah,0x50 + jne tre1 + mov ax,[sel] + inc al + cmp ax,[numbers] + jz waitafter + mov [sel],ax + add al,3 + call selection + jmp waitafter +tre1: + cmp ah,0x48 + jne tre2 + mov ax,[sel] + cmp ax,0 + jz waitafter + dec al + mov [sel],ax + add al,3 + call selection + jmp waitafter +tre2: + cmp al,0x0D + jne waitafter + mov bx,[sel] + shl bx,6 + add bx,thepart + mov si,mmp + call showstr + mov si,bx + add si,28 + call showstr + mov bp,[bx+26] + call initdisk + xor ax,ax + mov es,ax + mov ds,ax + mov di,0x0600 + mov ecx,[cs:bx+16] + call readsector + mov di,0x7C00 + mov ecx,[cs:bx+22] + call readsector + mov dx,bp + mov si,[cs:bx+20] + add si,0x0600 + pop ebp + pop edi + pop ebx + pop eax + jmp 0x0000:0x7C00 + +;============================================================================= + +; DONNEES FIXES + +;============================================================================= +mmp db "Chargement du disque ",0 +msg db "ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄ¿" + db "³ Letter:Name ³ Type ³ Boot ³ Statut ³ Size MByte ³ StartSector ³" + db "ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄ´",0 +tab db "ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÙ",0 +sep db " ³ ",0 + +partkind db 001h,"FAT12 ",0 + db 004h,"FAT16 ",0 + db 005h,"Extended ",0 + db 006h,"FAT16B ",0 + db 007h,"IFS ",0 + db 00Bh,"FAT32 ",0 + db 00Ch,"FAT32X ",0 + db 00Eh,"FAT16X ",0 + db 00Fh,"ExtendedX ",0 + db 081h,"Linux 1.4b",0 + db 082h,"Linux SWAP",0 + db 083h,"Linux EXT2",0 + db 011h,"FAT12 Hid ",0 + db 014h,"FAT16 Hid",0 + db 016h,"FAT16B Hid",0 + db 017h,"IFS Hid ",0 + db 01Bh,"FAT32 Hid ",0 + db 01Ch,"FAT32X Hid",0 + db 01Eh,"FAT16X Hid",0 + db 0FFh,"Unknowed ",0 + +noname db "Unknowed ","Unkowned ",0 +unknowed db "Movable ",0 +primary db "Primary ",0 +secondary db "Secondary",0 +yes db "Yes ",0 +no db "No ",0 +mo db " MB",0 + +;============================================================================= + +; ROUTINES PARTICULIERES + +;============================================================================= +;Affiche des infos sur le volume +showdriveinfos: + push ax + push bx + push cx + push edx + push si + mov si, msg + call showstr + mov bx,thepart + mov cx,[numbers] +showall: + mov al,'³' + call showchar + mov al,' ' + call showchar + mov al,[bx+51] + call showchar + mov al,':' + call showchar + mov si,bx + add si,28 + call showstr + mov si, sep + call showstr + mov al,[bx+4] + cmp al,0xFF + je useboot + mov si, partkind+1 +search: + cmp byte[si-1],0x0FF + je notboot + cmp [si-1],al + je notboot + add si,12 + jmp search +useboot: + mov si,bx + add si,40 +notboot: + call showstr + mov si, sep + call showstr + mov si, yes + cmp byte [bx],0x80 + je okboot + mov si, no +okboot: + call showstr + mov si, sep + call showstr + mov si, primary + cmp dword [bx+16],0 + je okprimary + mov si, secondary +okprimary: + cmp byte [bx+4],0x0FF + jne wasno + mov si, unknowed +wasno: + call showstr + mov si, sep + call showstr + mov edx,[bx+12] + shr edx,11 + call showint + mov si, mo + call showstr + mov si, sep + call showstr + mov edx,[bx+22] + call showint + mov al,' ' + call showchar + mov al,'³' + call showchar + add bx,64 + dec cx + jnz near showall + mov si, tab + call showstr + pop si + pop edx + pop cx + pop bx + pop ax + ret + +;met en surlign‚e la ligne al et seulement al +selection: + push cx + mov ch,0x70 + call selectline + xchg al,[cs:old] + mov ch,0x07 + call selectline + pop cx + ret + +old db 20 + +;selectionne la ligne al de couleur ch +selectline: + push ax + push bx + push cx + push ds + mov bh,160 + mul bh + mov bx,ax + mov ax,0xB800 + mov ds,ax + inc bx + mov cl,80 +select: + mov [bx],ch + add bx,2 + dec cl + jnz select + pop ds + pop cx + pop bx + pop ax + ret + +;============================================================================= + +; ROUTINES UNIVERSELLES INSPIREE DE COS2000 + +;============================================================================= + + +;=========GETDRIVEINFOS============== +;Envoie en es:di les lecteurs logiques sur les volumes point‚ par ds:si +;-> BP, ES:DI +;<- CX leur nombre +;==================================== +getdriveinfos: + push ax + push bx + push dx + push si + push di + push bp + push di + xor bx,bx +show: + xor dh,dh + mov dl,[si] + inc si + cmp dl,0xFF + je endofshow + mov bp,dx + call initdisk + call IsMbr + je okmbr + call getvolume + inc bx + add di,64 + jmp show +okmbr: + call getpartitions + mov ax,cx + shl ax,6 + add di,ax + add bx,cx + jmp show +endofshow: + pop si + mov al,'C' + mov cx,bx + push cx + push si +checkp: + cmp byte [si+4],5 + je notprim + cmp byte [si+4],0x0F + je notprim + cmp byte [si+16],0 + jnz notprim + cmp byte [si+26],0x80 + jb notprim + mov [si+51],al + inc al +notprim: + add si,64 + dec cx + jnz checkp + pop si + pop cx + push cx + push si +checkl: + cmp byte [si+4],5 + je notext + cmp byte [si+4],0x0F + je notext + cmp byte [si+16],0x00 + jz notext + cmp byte [si+26],0x80 + jb notext + mov [si+51],al + inc al +notext: + add si,64 + dec cx + jnz checkl + pop si + pop cx + mov al,'A' + push cx + push si +checkn: + cmp byte [si+26],0x80 + jae notlec + mov [si+51],al + inc al +notlec: + add si,64 + dec cx + jnz checkn + pop si + pop cx + mov al,'*' + push cx + push si +checko: + cmp byte [si+4],5 + je ext2 + cmp byte [si+4],0x0F + jne notext2 +ext2: + mov [si+51],al +notext2: + add si,64 + dec cx + jnz checko + pop si + pop cx + pop bp + pop di + pop si + pop dx + pop bx + pop ax + ret + +;=============GETVOLUME============== +;Envoie en es:di les infos disque EBP +;-> BP, ES:DI +;<- +;==================================== +getvolume: + push ax + push ecx + push edx + push di + push di + mov cx,64 + mov al,0 + cld + rep stosb + pop di + mov byte [es:di+4],0xFF + mov ecx,0 + mov [di+26],bp + push di + add di,28 + call getbootinfos + pop di + mov [di+12],edx + pop di + pop edx + pop ecx + pop ax + ret + +;==========GETBOOTINFOS============== +;Envoie en es:di le nom du volume & le FS d'adresse LBA ECX sur disque EBP +;-> BP, ES:DI, ECX +;<- +;==================================== +getbootinfos: + push ax + push cx + push si + push di + push di + push es + push cs + pop es + mov di,buffer + mov si,di + call readsector + pop es + pop di + cmp byte [si+0x13],0 + je more32 + xor edx,edx + mov dx,[si+0x13] + jmp more16 +more32: + mov edx,[si+0x20] +more16: + cmp byte [si+0x42],0x29 + je fat32 + cmp byte [si+0x26],0x29 + je fat16 +unk: + mov si,noname + jmp rel +fat32: + add si,0x47 + jmp rel +fat16: + add si,0x2B +rel: + mov cx,11 + cld + rep movsb + mov al,0 + stosb + mov cx,8 + rep movsb + mov ax,' ' + stosw + mov al,0 + stosb + pop di + pop si + pop cx + pop ax + ret + +;==========GETPARTITION============== +;Envoie en es:di la liste des partitions du disque BP +;-> BP, ES:DI +;<- renvoie leur nombre en CX +;==================================== +getpartitions: + push eax + push ebx + push edx + push si + push di + mov ecx,0 + mov word [wheres],0 + mov [theprimary],ecx +againpart: + xor eax,eax + mov ebx,ecx + push di + mov di,partition + CALL readsector + mov si, di + pop di + add si,0x01BE + mov cl,4 +showevery: + cmp dword [si+NumSector],0x00000000 + je nothings + mov edx,[si+StartSector] + cmp byte [si+Kind],0x05 + je is + cmp byte [si+Kind],0x0F + jne isnot +is: + mov eax,[theprimary] + add eax,edx + cmp dword [theprimary],0 + jne nothings +isnot: + push ecx + push di + push si + mov cx,[wheres] + shl cx,6 + add di,cx + mov ecx,16/4 + rep movsd + pop si + mov [di],ebx + mov [di+4],si + sub word [di+4],partition + mov [di+6],ebx + add [di+6],edx + mov ecx,[di+6] + mov [di+10],bp + add di,12 + push edx + call getbootinfos + pop edx + pop di + pop ecx + inc word [wheres] +nothings: + add si,16 + dec cl + jnz showevery + mov ecx,eax + cmp dword [theprimary],0x00000000 + jne noth + mov [theprimary],eax +noth: + cmp ecx,0 + jnz near againpart + mov cx,[wheres] + pop di + pop si + pop edx + pop ebx + pop eax + ret + +;==============ISMBR================= +;Zero si Mbr sur le premier secteur du support BP +;-> BP +;<- +;==================================== +IsMbr: + push ax + push ecx + push di + push es + mov ecx,0 + mov di,buffer + push cs + pop es + call readsector + add di,0x01BE + mov cl,4 +isgood: + mov al,[cs:di] + and al,0x7F + cmp al,0 + jne noMbr + add di,16 + dec cl + jne isgood + cmp word [cs:di],0xAA55 +noMbr: + pop es + pop di + pop ecx + pop ax + ret + +;=============DETECTDISK============= +;Renvoie en ES:DI les disques d‚tect‚s fini par 0FFh +;-> ES:DI +;<- +;==================================== +detectdisk: + push ax + push bx + push cx + push dx + push si + push di + mov si,PossibleDisks +DetectAllDisk: + mov dl,[cs:si] + inc si + cmp dl,0xFF + je EndOfDetection + mov cl,4 +retry: + push cx + mov ax,0x0201 + mov cx,0x0101 + mov dh,0x00 + mov bx,buffer + int 0x13 + pop cx + jnc isdetected + dec cl + jnz retry + jmp DetectAllDisk +isdetected: + mov [es:di],dl + inc di + jmp DetectAllDisk +EndOfDetection: + mov byte [di],0xFF + pop di + pop si + pop dx + pop cx + pop bx + pop ax + ret + +PossibleDisks db 0x00,0x01,0x02,0x03,0x04,0x05,0x80,0x81,0x82,0x83,0x84,0x85,0xFF + +;=============INITDISK=============== +;Initialise le p‚riph‚rique BP pour une utilisation ult‚rieure +;-> BP +;<- +;==================================== +initdisk: + push ax + push bx + push cx + push dx + push di + push es + mov dx,bp + mov ah,8 + int 0x13 + and cx,0x3F + mov [cs:sectorspertrack],cx + mov cl,dh + inc cl + mov [cs:headsperdrive],cx + pop es + pop di + pop dx + pop cx + pop bx + pop ax + ret + +;=============READSECTOR=============== +;Lit le secteur ECX du disque BP et le met en es:di +;-> +;<- +;====================================== +readsector: + push ax + push bx + push ecx + push dx + push si + mov ax,bp + mov [cs:temp],al + mov ax, cx + ror ecx, 16 + mov dx, cx + rol ecx,16 + cmp ecx,4128705 + ja extended + div word [cs:sectorspertrack] + inc dl + mov bl, dl + xor dx,dx + div word [cs:headsperdrive] + mov dh, [cs:temp] + xchg dl, dh + mov cx, ax + xchg cl, ch + shl cl, 6 + or cl, bl + mov bx, di + mov si, 4 + mov al, 1 +TryAgain: + mov ah, 2 + int 0x13 + jnc Done + dec si + jnz TryAgain +Done: + pop si + pop dx + pop ecx + pop bx + pop ax + ret +extended: + push di + push ds + push cs + pop ds + mov si,block + mov byte [si+Sizes],0x10 + mov byte [si+Reserve],0x01 + mov word [si+NumSectors],0x0001 + mov [si+Adressseg],es + mov [si+Adressoff],di + mov [si+SectorLow],ax + mov [si+SectorHigh],dx + mov di,4 + mov dl,[temp] +TryAgainX: + mov ah, 0x42 + int 0x13 + jnc DoneX + dec di + jnz TryAgainX +DoneX: + pop ds + pop di + pop si + pop dx + pop ecx + pop bx + pop ax + ret + +headsperdrive dw 16 +sectorspertrack dw 38 +block times 24 db 0 +temp db 0 + +;============CLS============== +;Efface l'‚cran +;-> +;<- +;============================= +cls: + push ax + mov ax,0x0003 + int 0x10 + pop ax + ret + +;==========SHOWSTR============ +;Affiche une chaine de caractŠre point‚ par SI +;-> SI pointe une chaine +;<- +;============================= +showstr: + push ax + push bx + push si + cld +again: + lodsb + or al,al + jz fin + call showchar + jmp again +fin: + pop si + pop bx + pop ax + ret + +;==========SHOWPASSTR============ +;Affiche une chaine de caractŠre point‚ par SI +;-> SI pointe une chaine +;<- +;============================= +showpasstr: + push ax + push bx + push cx + push si + mov cl,[si] + inc si + cld +again2: + lodsb + call showchar + dec cl + jnz again2 +fin2: + pop si + pop cx + pop bx + pop ax + ret + +;==========WAITKEY============= +;Attend l'appuie d'une toouche et +;renvoie en AL la touche appuyer +;-> +;<- AL +;============================== +waitkey: + mov ax,0 + int 0x16 + ret + +;==========SHOWCHAR============ +;Affiche un caractŠre point‚ dans AL +;-> AL +;<- +;============================== +showchar: + push ax + push bx + mov ah,0x0E + mov bx,0x07 + int 0x10 + pop bx + pop ax + ret + +;==========SHOWINT============ +;Affiche un entier EDX apr‚s le curseur +;-> EDX un entier +;<- +;============================= +showint: + push eax + push bx + push cx + push edx + push esi + push di + push ds + push es + + push cs + push cs + pop ds + pop es + mov cx,10 + mov di, showbuffer + mov al,' ' + cld + rep stosb + xor cx,cx + mov eax, edx + mov esi, 10 + mov bx,di + mov byte [cs:di+1],0 +decint: + xor edx,edx + div esi + add dl,'0' + inc cx + mov [cs:bx],dl + dec bx + cmp ax, 0 + jne decint +showinteger: + mov si, showbuffer + call showstr + pop es + pop ds + pop di + pop esi + pop edx + pop cx + pop bx + pop eax + ret + +;============================================================================= + +; VARIABLES INITIALISEE + +;============================================================================= + +sel dw 0 +wheres dw 0 +numbers dw 0 + +;============================================================================= + +; VARIABLES NON INITIALISEE + +;============================================================================= + +theprimary equ $ +showbuffer equ $+1 +disk equ $+1+12 +partition equ $+1+12+26 +buffer equ $+1+12+26+512 +thepart equ $+1+12+26+512+512 + +section .bss + +%include "partition.h" +%include "echs.h" + +;theprimary resd 1 +;showbuffer resb 12 +;disk resb 26 +;partition resb 512 +;buffer resb 512 +;thepart resb 10000 + diff --git a/install/mbrol/makefile b/install/mbrol/makefile new file mode 100644 index 0000000..21ce4c0 --- /dev/null +++ b/install/mbrol/makefile @@ -0,0 +1,17 @@ +all: makall + +makall: mbrol.com + +mbrol.com: + nasm -f bin -o mbr.bin mbr.asm + nasm -f bin -o loader.bin loader.asm + sync + nasm -f bin -o mbrol.com mbrol.asm + +clean: + rm -f *.o + rm -f *.bin + rm -f *.sys + rm -f *.com + + diff --git a/install/mbrol/mbr.asm b/install/mbrol/mbr.asm new file mode 100644 index 0000000..ef31b01 --- /dev/null +++ b/install/mbrol/mbr.asm @@ -0,0 +1,214 @@ +[BITS 16] +[ORG 0x7C00] + +start: + jmp short falsereal ;vers debut programme + db "MBROL" ;Signature MBROL +falsereal: + cli ;inhibation interruptions + xor ax,ax + mov ss,ax ;Reloge pile en 0000h:9000h + mov sp,0x9000 + push ax + pop ds ;DS=0000h + add ah,0x10 + push ax + pop es ;ES=1000h + sti ;Reactivation des interruptions + cld + mov [sitemp],si ;sauvegarde si (adresse partition active) + mov di,0x7C00 + mov si,di + mov cx,512/4 + rep movsd ;On reloge le programme en 1000h:7C00h + push es + pop ds ;DS=1000h + jmp 0x1000:RealStart + +RealStart: + xor dh,dh + mov bp,dx ;R‚cupŠre en BP le nølecteur de d‚marrage + call initdisk ;Initialisation du p‚riph‚rique + ;call cls ;Efface l'‚cran + mov si, msg + call showstr ;Affiche le splatch de boot + call getkey ;R‚cupŠre la touche press‚ par l'utilisateur + cmp al,' ' ;touche = espace + jne normal ;si autre touche on démarre normalement + mov si, msgmbrol + call showstr ;Message de chargement de Cos loader + xor ecx,ecx + inc ecx + mov di,0x0100 +readload: + inc ecx + call readsector ;Charge le secteur LBA ecx en es:di + add di,512 + cmp ecx,7 + jb readload ;Charge les secteurs LBA 2 … 6 en 1000h:0100h + + jmp 0x1000:0x0100 ;Execute Cos loader + ;saut FAR vers 1000h:0100h + +normal: + mov si,msgnorm + call showstr ;Affiche le d‚marrage normal + mov ecx,1 + xor ax,ax + mov es,ax + mov ds,ax + mov di,0x7C00 ;Charge le secteur LBA 1 en 0000h:7C00h + call readsector ;qui est le MBR d'origine sauvegard‚ par MBROL + mov dx,bp ;Renvoie dans DL le lecteur de d‚marrage + mov si,[sitemp] ;restaure si (adresse de la partition) + jmp 0x0000:0x7C00 ;Une op‚ration normalement r‚alis‚e par le BIOS + ;Saut vers le MBR en 0000h:7C00h + +temp db 0 +sitemp dw 0 +HeadsPerDrive dw 16 +SectorsPerTrack dw 38 +msg db "Cos2000 MBROL V1.0",0x0A,0x0D,"Press [SPACE] to execute Cos Loader",0x0A,0x0D,0 +point db '.',0 +msgmbrol db "Cos Loader is loading",0 +msgnorm db "Booting...",0 + +;=============INITDISK=============== +;Initialise le p‚riph‚rique BP pour une utilisation ult‚rieure +;-> BP +;<- +;==================================== +initdisk: + push ax + push bx + push cx + push dx + push di + push es + mov dx,bp + mov ah,8 + int 0x13 + and cx,111111b + mov [cs:SectorsPerTrack],cx + mov cl,dh + inc cl + mov [cs:HeadsPerDrive],cx + pop es + pop di + pop dx + pop cx + pop bx + pop ax + ret + +;=============READSECTOR (Fonction 01H)=============== +;Lit le secteur ECX du disque BP et le met en es:di +;-> AH=1 +;<- Flag Carry si erreur +;===================================================== +readsector: + push ax + push bx + push ecx + push dx + push si + mov ax,bp + mov [cs:temp],al + mov ax, cx + ror ecx, 16 + mov dx, cx + rol ecx,16 + div word [cs: SectorsPerTrack] + inc dl + mov bl, dl + xor dx,dx + div word [cs: HeadsPerDrive] + mov dh, [cs:temp] + xchg dl, dh + mov cx, ax + xchg cl, ch + shl cl, 6 + or cl, bl + mov bx, di + mov si, 4 + mov al, 1 +TryAgain: + mov ah, 2 + int 13h + push si + mov si,point + call showstr + pop si + jnc Done + dec si + jnz TryAgain +Done: + pop si + pop dx + pop ecx + pop bx + pop ax + ret + +;============CLS============== +;Efface l'‚cran +;-> +;<- +;============================= +cls: + push ax + mov ax,0x0003 + int 0x10 + pop ax + ret + +;==========SHOWSTR============ +;Affiche une chaine de caractŠre point‚ par SI +;-> SI pointe une chaine +;<- +;============================= +showstr: + push ax + push bx + push si +again: + lodsb + or al,al + jz fin + CALL showchar + jmp again +fin: + pop si + pop bx + pop ax + ret + +;===========GETKEY============= +;N'Attend l'appuie d'une touche et +;renvoie en AL la touche appuyer +;-> +;<- AL +;============================== +getkey: + mov ah,0x01 + int 0x16 + ret + +;==========SHOWCHAR============ +;Affiche un caractŠre point‚ dans AL +;-> AL +;<- +;============================== +showchar: + push ax + push bx + mov ah,0x0E + mov bx,0x07 + int 0x10 + pop bx + pop ax + ret + +times 510-($-$$) db 0 + + dw 0xAA55 \ No newline at end of file diff --git a/install/mbrol/mbrol.asm b/install/mbrol/mbrol.asm new file mode 100644 index 0000000..8cec9bd --- /dev/null +++ b/install/mbrol/mbrol.asm @@ -0,0 +1,1343 @@ +[BITS 16] +[ORG 0x0100] + +section .text + +start: + mov di,disk + call detectdisk + mov si,di + mov di,thedrive + call getalldriveinfos + mov [numbers],cx + mov al,3 + mov word [sel],0 +main: + call cls + mov si,thedrive + call showalldriveinfos + call selection +waitafter: + call waitkey + call lower + cmp ah,0x50 + jne tre1 + mov ax,[sel] + inc al + cmp ax,[numbers] + jz waitafter + mov [sel],ax + add al,3 + call selection + jmp waitafter +tre1: + cmp ah,0x48 + jne tre2 + mov ax,[sel] + cmp ax,0 + jz waitafter + dec al + mov [sel],ax + add al,3 + call selection + jmp waitafter +tre2: + cmp al,0x0D + jne tre3 + mov bx,[sel] + shl bx,4 + add bx,thedrive + mov bp,[bx] + call initdisk + mov di,thepart + call IsMbr + je okmbr2 + call getvolume + mov cx,1 + jmp nombr2 +okmbr2: + call getpartitions +nombr2: + call cls + mov si,di + call showdriveinfos + call waitkey + call lower + mov al,[cs:old] + jmp main +tre3: + cmp al,'i' + jne tre4 + mov bx,[sel] + shl bx,4 + add bx,thedrive + mov bp,[bx] + call initdisk + mov al,[cs:old] + cmp byte [bx+1],1 + je noerase + mov si,erasing + call showstr + call choice + jnz near main +noerase: + cmp byte [bx+2],1 + jne noreinst + mov si,remplacing + call showstr + call choice + jnz near main +noreinst: + cmp byte [bx+3],0 + jne nolbas + cmp dword [bx+4],8300 + jb nolbas + mov si,nowereLBA + call showstr + call choice + jnz near main +nolbas: + mov si,really + call showstr + call choice + jnz near main + call install + mov si,installed + call showstr + mov si,disk + mov di,thedrive + call getalldriveinfos + push ax + call waitkey + pop ax + jmp main +tre4: + cmp al,0x1B + jne tre5 + call cls + ret +tre5: + cmp al,'u' + jne tre6 + mov bx,[sel] + shl bx,4 + add bx,thedrive + mov bp,[bx] + mov al,[cs:old] + cmp byte [bx+2],1 + je letsgo + mov si,noinst + call showstr + push ax + call waitkey + pop ax + jmp main +letsgo: + mov si,uninst + call showstr + call choice + jnz near main + call uninstall + mov si,uninstalled + call showstr + mov si,disk + mov di,thedrive + call getalldriveinfos + push ax + call waitkey + pop ax + jmp main +tre6: + cmp al,'r' + jne near waitafter + call reboot + +;============================================================================= + +; DONNEES FIXES + +;============================================================================= +msg2 db "ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄ¿" + db "³ Volume ³ Type ³ Installed ³ LBA ³ Size MByte ³ Partitions ³" + db "ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄ´",0 +tab2 db "ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÙ" + db "[ENTER] informations [ESC] quit [R] reboot [I] install MBROL [U] uninstall MBROL",0 +noinst db 0x0A,0x0D,"MBROL is not yet installed, press a key...",0 +really db 0x0A,0x0D,"Do you really want to install MBROL ?",0 +erasing db 0x0A,0x0D,"Mbrol need a partionned disk, on this disk data will be erased, do it ?",0 +remplacing db 0x0A,0x0D,"Mbrol is already installed, do you want to replace old installation ?",0 +nowereLBA db 0x0A,0x0D,"BIOS or this drive don''t support LBA and it necessite LBA adressing, install ?",0 +installed db 0x0A,0x0D,"MBROL is installed, press a key to continue...",0 +uninstalled db 0x0A,0x0D,"MBROL is uninstalled, press a key to continue...",0 +uninst db 0x0A,0x0D,"Do you really want to uninstall MBROL ?",0 +processing db 0x0A,0x0D,"Processing",0 + +floppy db "Floppy Disk",0 +hard db "Hard Disk",0 +boot db " Boot ",0 +mbr db " Mbr ",0 +yes1 db " Yes ",0 +no1 db " No ",0 +yes2 db " Yes ",0 +no2 db " No ",0 +choiced db 0x0A,0x0D,"[y/n]:",0 + +msg db "ÚÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÂÄÄÄÄÄÄÄÄÄÄÄÄÄ¿" + db "³ Name ³ Type ³ Boot ³ Statut ³ Size MByte ³ StartSector ³" + db "ÃÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÅÄÄÄÄÄÄÄÄÄÄÄÄÄ´",0 +tab db "ÀÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÄÁÄÄÄÄÄÄÄÄÄÄÄÄÄÙ" + db "Press any key to close...",0 +sep db " ³ ",0 + +partkind db 0x01,"FAT12 ",0 + db 0x04,"FAT16 ",0 + db 0x05,"Extended ",0 + db 0x06,"FAT16B ",0 + db 0x07,"IFS ",0 + db 0x0B,"FAT32 ",0 + db 0x0C,"FAT32X ",0 + db 0x0E,"FAT16X ",0 + db 0x0F,"ExtendedX ",0 + db 0x81,"Linux 1.4b",0 + db 0x82,"Linux SWAP",0 + db 0x83,"Linux EXT2",0 + db 0x11,"FAT12 Hid ",0 + db 0x14,"FAT16 Hid",0 + db 0x16,"FAT16B Hid",0 + db 0x17,"IFS Hid ",0 + db 0x1B,"FAT32 Hid ",0 + db 0x1C,"FAT32X Hid",0 + db 0x1E,"FAT16X Hid",0 + db 0xFF,"Unknowed ",0 + +noname db "Unknowed ","Unkowned ",0 +unknowed db "Movable ",0 +primary db "Primary ",0 +secondary db "Secondary",0 +yes db "Yes ",0 +no db "No ",0 +mo db " MB",0 + +;============================================================================= + +; ROUTINES PARTICULIERES + +;============================================================================= +;converti al en lowercase +lower: + cmp al,'A' + jb noupper + cmp al,'Z' + ja noupper + add al,'a'-'A' +noupper: + ret + +;redemarrage … chaud +reboot: + mov ax,0x40 + mov ds,ax + mov bx,0x1234 + mov [ds:0x0072],bx + jmp 0xFFFF:0x0000 + +;Dialogue qui demande si Yes or No et Renvoie zero si YES et +choice: + push ax + push si + mov si,choiced + call showstr +waiter: + call waitkey + call lower + cmp al,'y' + je iyes + cmp al,'n' + je ino + jmp waiter +iyes: + call showchar + cmp al,al + jmp endof +ino: + call showchar + cmp al,' ' + jmp endof +endof: + pop si + pop ax + ret + +;install MBROL sur le disque BP +install: + push ax + push ecx + push si + push di + mov si,processing + call showstr + call initdisk + mov ecx,0 + mov di,buffer + call readsector + inc ecx + mov si,di + cmp dword [di+2],"MBRO" + je nosave + call writesector +nosave: + add si,0x01BE + mov di,prog+0x01BE + mov cx,16*4/4 + cld + rep movsd + mov ecx,0 + mov si,prog + call writesector + inc ecx +copying: + inc ecx + add si,512 + call writesector + mov al,'.' + call showchar + cmp ecx,7 + jb copying + pop di + pop si + pop ecx + pop ax + ret + +;desinstalle MBROL sur le disque BP +uninstall: + push ecx + push si + push di + call initdisk + mov ecx,1 + mov di,buffer + call readsector + dec ecx + mov si,di + call writesector + pop di + pop si + pop ecx + ret + +;Affiche des infos sur le volume +showalldriveinfos: + push ax + push bx + push cx + push edx + push si + mov si,msg2 + call showstr + mov bx,thedrive + mov cx,[numbers] +showall: + mov al,'³' + call showchar + mov al,' ' + call showchar + mov al,[bx] + mov si,floppy + cmp al,0x80 + jb disks + mov si,hard +disks: + call showstr + and al,0xF + push ax + mov al,' ' + call showchar + mov al,'0' + call showchar + pop ax + add al,'0' + call showchar + mov si,sep + call showstr + mov si,boot + cmp byte [bx+1],1 + jne booter + mov si,mbr +booter: + call showstr + mov si,sep + call showstr + mov si,no1 + cmp byte [bx+2],1 + jne noinsts + mov si,yes1 +noinsts: + call showstr + mov si,sep + call showstr + mov si,no2 + cmp byte [bx+3],1 + jne lbas + mov si,yes2 +lbas: + call showstr + mov si,sep + call showstr + mov edx,[bx+4] + call showint + mov si,mo + call showstr + mov si,sep + call showstr + mov dx,[bx+8] + call showint + mov al,' ' + call showchar + mov al,'³' + call showchar + add bx,16 + dec cx + jnz near showall + mov si,tab2 + call showstr + pop di + pop edx + pop cx + pop bx + pop ax + ret + +;renvoie en ES:DI les infos sur les disques DS:SI et Nb dans CX +getalldriveinfos: + push ax + push bx + push dx + push si + push di + push bp + xor bx,bx + xor cx,cx +show2: + xor dh,dh + mov dl,[si] + inc si + cmp dl,0xFF + je endofshow2 + inc cx + mov bp,dx + call initdisk + mov [es:di],dl + call IsMbr + sete [es:di+1] + call IsInstalled + sete [es:di+2] + call IsLBA + setnc [es:di+3] + push cx + call getcapacity + mov [es:di+4],ecx + mov cx,1 + cmp byte [si-1],0x80 + jb noone + push es + push di + push cs + pop es + mov di,dummys + call getpartitions + pop di + pop es +noone: + mov [es:di+8],cx + add di,16 + pop cx + jmp show2 +endofshow2: + pop bp + pop di + pop si + pop dx + pop bx + pop ax + ret + +;===========ISInstalled============== +;Zero si Mbr sur le premier secteur du support BP +;-> BP +;<- +;==================================== +IsInstalled: + push ax + push ecx + push di + push es + mov ecx,0 + mov di,buffer + push cs + pop es + call readsector + cmp dword [di+2],"MBRO" + pop es + pop di + pop ecx + pop ax + ret + +;Affiche des infos sur le volume +showdriveinfos: + push ax + push bx + push cx + push edx + push si + mov si,msg + call showstr + mov bx,thepart +showall2: + mov al,'³' + call showchar + mov al,' ' + call showchar + mov al,'-' + call showchar + mov al,'>' + call showchar + mov si,bx + add si,28 + call showstr + mov si,sep + call showstr + mov al,[bx+4] + cmp al,0xFF + je useboot + mov si,partkind+1 +search: + cmp byte [si-1],0xFF + je notboot + cmp [si-1],al + je notboot + add si,12 + jmp search +useboot: + mov si,bx + add si,40 +notboot: + call showstr + mov si,sep + call showstr + mov si,yes + cmp byte [bx],0x80 + je okboot + mov si,no +okboot: + call showstr + mov si,sep + call showstr + mov si,primary + cmp dword [bx+16],0 + je okprimary + mov si,secondary +okprimary: + cmp byte [bx+4],0xFF + jne wasno + mov si,unknowed +wasno: + call showstr + mov si,sep + call showstr + mov edx,[bx+12] + shr edx,11 + call showint + mov si,mo + call showstr + mov si,sep + call showstr + mov edx,[bx+22] + call showint + mov al,' ' + call showchar + mov al,'³' + call showchar + add bx,64 + dec cx + jnz near showall2 + mov si,tab + call showstr + pop si + pop edx + pop cx + pop bx + pop ax + ret + +;met en surlign‚e la ligne al et seulement al +selection: + push cx + mov ch,0x70 + call selectline + xchg al,[cs:old] + cmp al,[cs:old] + je nochange + mov ch,0x07 + call selectline +nochange: + pop cx + ret + +old db 20 + +;selectionne la ligne al de couleur ch +selectline: + push ax + push bx + push cx + push ds + mov bh,160 + mul bh + mov bx,ax + mov ax,0xb800 + mov ds,ax + inc bx + mov cl,80 +select: + mov [bx],ch + add bx,2 + dec cl + jnz select + pop ds + pop cx + pop bx + pop ax + ret + +;============================================================================= + +; ROUTINES UNIVERSELLES INSPIREE DE COS2000 + +;============================================================================= + +;============Getcapacity============= +;Renvoie la capacit‚ du disque Bp dans ECX +;-> BP +;<- +;==================================== +getcapacity: + mov ecx,0 + ret + +;===============IsLBA================ +;Renvoie zero = 1 si LBA +;-> BP +;<- +;==================================== +IsLBA: + push ax + push bx + push cx + push dx + mov dx,bp + mov ah,0x41 + mov bx,0x55AA + int 0x13 + pop dx + pop cx + pop bx + pop ax + ret + +;=========GETDRIVEINFOS============== +;Envoie en es:di les lecteurs logiques sur les volumes point‚ par ds:si +;-> BP, ES:DI +;<- CX leur nombre +;==================================== +getdriveinfos: + push ax + push bx + push dx + push si + push di + push bp + push di + xor bx,bx +show: + xor dh,dh + mov dl,[si] + inc si + cmp dl,0xFF + je endofshow + mov bp,dx + call initdisk + call IsMbr + je okmbr + call getvolume + inc bx + add di,64 + jmp show +okmbr: + call getpartitions + mov ax,cx + shl ax,6 + add di,ax + add bx,cx + jmp show +endofshow: + pop si + mov al,'C' + mov cx,bx + push cx + push si +checkp: + cmp byte [si+4],5 + je notprim + cmp byte [si+4],0x0F + je notprim + cmp byte [si+16],0 + jnz notprim + cmp byte [si+26],0x80 + jb notprim + mov [si+51],al + inc al +notprim: + add si,64 + dec cx + jnz checkp + pop si + pop cx + push cx + push si +checkl: + cmp byte [si+4],5 + je notext + cmp byte [si+4],0x0F + je notext + cmp byte [si+16],0x00 + jz notext + cmp byte [si+26],0x80 + jb notext + mov [si+51],al + inc al +notext: + add si,64 + dec cx + jnz checkl + pop si + pop cx + mov al,'A' + push cx + push si +checkn: + cmp byte [si+26],0x80 + jae notlec + mov [si+51],al + inc al +notlec: + add si,64 + dec cx + jnz checkn + pop si + pop cx + mov al,'*' + push cx + push si +checko: + cmp byte [si+4],5 + je ext2 + cmp byte [si+4],0x0F + jne notext2 +ext2: + mov [si+51],al +notext2: + add si,64 + dec cx + jnz checko + pop si + pop cx + pop bp + pop di + pop si + pop dx + pop bx + pop ax + ret + +;=============GETVOLUME============== +;Envoie en es:di les infos disque EBP +;-> BP, ES:DI +;<- +;==================================== +getvolume: + push ax + push ecx + push edx + push di + push di + mov cx,64 + mov al,0 + cld + rep stosb + pop di + mov byte [es:di+4],0xFF + mov ecx,0 + mov [di+26],bp + push di + add di,28 + call getbootinfos + pop di + mov [di+12],edx + pop di + pop edx + pop ecx + pop ax + ret + +;==========GETBOOTINFOS============== +;Envoie en es:di le nom du volume & le FS d'adresse LBA ECX sur disque EBP +;-> BP, ES:DI, ECX +;<- +;==================================== +getbootinfos: + push ax + push cx + push si + push di + push di + push es + push cs + pop es + mov di,buffer + mov si,di + call readsector + pop es + pop di + cmp byte [si+0x13],0 + je more32 + xor edx,edx + mov dx,[si+0x13] + jmp more16 +more32: + mov edx,[si+0x20] +more16: + cmp byte [si+0x42],0x29 + je fat32 + cmp byte [si+0x26],0x29 + je fat16 +unk: + mov si,noname + jmp rel +fat32: + add si,0x47 + jmp rel +fat16: + add si,0x2B +rel: + mov cx,11 + cld + rep movsb + mov al,0 + stosb + mov cx,8 + rep movsb + mov ax,' ' + stosw + mov al,0 + stosb + pop di + pop si + pop cx + pop ax + ret + +;==========GETPARTITION============== +;Envoie en es:di la liste des partitions du disque BP +;-> BP, ES:DI +;<- renvoie leur nombre en CX +;==================================== +getpartitions: + push eax + push ebx + push edx + push si + push di + mov ecx,0 + mov word [wheres],0 + mov [theprimary],ecx +againpart: + xor eax,eax + mov ebx,ecx + push di + mov di,partition + CALL readsector + mov si, di + pop di + add si,0x01BE + mov cl,4 +showevery: + cmp dword [si+NumSector],0x00000000 + je nothings + mov edx,[si+StartSector] + cmp byte [si+Kind],0x05 + je is + cmp byte [si+Kind],0x0F + jne isnot +is: + mov eax,[theprimary] + add eax,edx + cmp dword [theprimary],0 + jne nothings +isnot: + push ecx + push di + push si + mov cx,[wheres] + shl cx,6 + add di,cx + mov ecx,16/4 + rep movsd + pop si + mov [di],ebx + mov [di+4],si + sub word [di+4],partition + mov [di+6],ebx + add [di+6],edx + mov ecx,[di+6] + mov [di+10],bp + add di,12 + push edx + call getbootinfos + pop edx + pop di + pop ecx + inc word [wheres] +nothings: + add si,16 + dec cl + jnz showevery + mov ecx,eax + cmp dword [theprimary],0x00000000 + jne noth + mov [theprimary],eax +noth: + cmp ecx,0 + jnz near againpart + mov cx,[wheres] + pop di + pop si + pop edx + pop ebx + pop eax + ret + +;==============ISMBR================= +;Zero si Mbr sur le premier secteur du support BP +;-> BP +;<- +;==================================== +IsMbr: + push ax + push ecx + push di + push es + mov ecx,0 + mov di,buffer + push cs + pop es + call readsector + add di,0x01BE + mov cl,4 +isgood: + mov al,[cs:di] + and al,0x7F + cmp al,0 + jne noMbr + add di,16 + dec cl + jne isgood + cmp word [cs:di],0xAA55 +noMbr: + pop es + pop di + pop ecx + pop ax + ret + +;=============DETECTDISK============= +;Renvoie en ES:DI les disques d‚tect‚s fini par 0FFh +;-> ES:DI +;<- +;==================================== +detectdisk: + push ax + push bx + push cx + push dx + push si + push di + mov si,PossibleDisks +DetectAllDisk: + mov dl,[cs:si] + inc si + cmp dl,0xFF + je EndOfDetection + mov cl,4 +retry: + push cx + mov ax,0x0201 + mov cx,0x0101 + mov dh,0x00 + mov bx,buffer + int 0x13 + pop cx + jnc isdetected + dec cl + jnz retry + jmp DetectAllDisk +isdetected: + mov [es:di],dl + inc di + jmp DetectAllDisk +EndOfDetection: + mov byte [di],0xFF + pop di + pop si + pop dx + pop cx + pop bx + pop ax + ret + +PossibleDisks db 0x00,0x01,0x02,0x03,0x04,0x05,0x80,0x81,0x82,0x83,0x84,0x85,0xFF + +;=============INITDISK=============== +;Initialise le p‚riph‚rique BP pour une utilisation ult‚rieure +;-> BP +;<- +;==================================== +initdisk: + push ax + push bx + push cx + push dx + push di + push es + mov dx,bp + mov ah,8 + int 0x13 + and cx,0x3F + mov [cs:sectorspertrack],cx + mov cl,dh + inc cl + mov [cs:headsperdrive],cx + pop es + pop di + pop dx + pop cx + pop bx + pop ax + ret + +;=============WRITESECTOR (Fonction 01H)=============== +;Ecrit le secteur ECX du disque BP depuis ds:si +;-> AH=1 +;<- Flag Carry si erreur +;===================================================== +writesector: + push ax + push bx + push ecx + push dx + push si + push di + mov ax,bp + mov [cs:temp],al + mov ax, cx + ror ecx, 16 + mov dx, cx + rol ecx,16 + div word [cs:sectorspertrack] + inc dl + mov bl, dl + xor dx,dx + div word [cs:headsperdrive] + mov dh, [cs:temp] + xchg dl, dh + mov cx, ax + xchg cl, ch + shl cl, 6 + or cl, bl + mov bx, si + mov si, 4 + mov al, 1 +TryAgain2: + mov ah, 3 + int 0x13 + jnc Done2 + dec si + jnz TryAgain2 +Done2: + pop di + pop si + pop dx + pop ecx + pop bx + pop ax + ret + +;=============READSECTOR=============== +;Lit le secteur ECX du disque BP et le met en es:di +;-> +;<- +;====================================== +readsector: + push ax + push bx + push ecx + push dx + push si + mov ax,bp + mov [cs:temp],al + mov ax, cx + ror ecx, 16 + mov dx, cx + rol ecx,16 + cmp ecx,4128705 + ja extended + div word [cs:sectorspertrack] + inc dl + mov bl, dl + xor dx,dx + div word [cs:headsperdrive] + mov dh, [cs:temp] + xchg dl, dh + mov cx, ax + xchg cl, ch + shl cl, 6 + or cl, bl + mov bx, di + mov si, 4 + mov al, 1 +TryAgain: + mov ah, 2 + int 0x13 + jnc Done + dec si + jnz TryAgain +Done: + pop si + pop dx + pop ecx + pop bx + pop ax + ret +extended: + push di + push ds + push cs + pop ds + mov si,block + mov byte [si+Sizes],0x10 + mov byte [si+Reserve],0x01 + mov word [si+NumSectors],0x0001 + mov [si+Adressseg],es + mov [si+Adressoff],di + mov [si+SectorLow],ax + mov [si+SectorHigh],dx + mov di,4 + mov dl,[temp] +TryAgainX: + mov ah, 0x42 + int 0x13 + jnc DoneX + dec di + jnz TryAgainX +DoneX: + pop ds + pop di + pop si + pop dx + pop ecx + pop bx + pop ax + ret + +headsperdrive dw 16 +sectorspertrack dw 38 +block times 24 db 0 +temp db 0 + +;============CLS============== +;Efface l'‚cran +;-> +;<- +;============================= +cls: + push ax + mov ax,0x0003 + int 0x10 + pop ax + ret + +;==========SHOWSTR============ +;Affiche une chaine de caractŠre point‚ par SI +;-> SI pointe une chaine +;<- +;============================= +showstr: + push ax + push bx + push si + cld +again: + lodsb + or al,al + jz fin + call showchar + jmp again +fin: + pop si + pop bx + pop ax + ret + +;==========SHOWPASSTR============ +;Affiche une chaine de caractŠre point‚ par SI +;-> SI pointe une chaine +;<- +;============================= +showpasstr: + push ax + push bx + push cx + push si + mov cl,[si] + inc si + cld +again2: + lodsb + call showchar + dec cl + jnz again2 +fin2: + pop si + pop cx + pop bx + pop ax + ret + +;==========WAITKEY============= +;Attend l'appuie d'une toouche et +;renvoie en AL la touche appuyer +;-> +;<- AL +;============================== +waitkey: + mov ax,0 + int 0x16 + ret + +;==========SHOWCHAR============ +;Affiche un caractŠre point‚ dans AL +;-> AL +;<- +;============================== +showchar: + push ax + push bx + mov ah,0x0E + mov bx,0x07 + int 0x10 + pop bx + pop ax + ret + +;==========SHOWINT============ +;Affiche un entier EDX apr‚s le curseur +;-> EDX un entier +;<- +;============================= +showint: + push eax + push bx + push cx + push edx + push esi + push di + push ds + push es + push cs + push cs + pop ds + pop es + mov cx,10 + mov di,showbuffer + mov al,' ' + cld + rep stosb + xor cx,cx + mov eax, edx + mov esi, 10 + mov bx,di + mov byte [cs:di+1],0 +decint: + xor edx,edx + div esi + add dl,'0' + inc cx + mov [cs:bx],dl + dec bx + cmp ax, 0 + jne decint +showinteger: + mov si,showbuffer + call showstr + pop es + pop ds + pop di + pop esi + pop edx + pop cx + pop bx + pop eax + ret + +;============================================================================= + +; VARIABLES INITIALISEE + +;============================================================================= + +sel dw 0 +wheres dw 0 +numbers dw 0 +theprimary dd 0 +prog: + +incbin "mbr.bin" +incbin "loader.bin" +;============================================================================= + +; VARIABLES NON INITIALISEE + +;============================================================================= + +showbuffer equ $ +disk equ $+12 +partition equ $+12+26 +buffer equ $+12+26+512 +thepart equ $+12+26+512+512 +thedrive equ $+12+26+512+512+10000 +dummys equ $+12+26+512+512+10000+10000 + +section .bss + +%include "partition.h" +%include "echs.h" + +;showbuffer resb 12 +;disk resb 26 +;partition resb 512 +;buffer resb 512 +;thepart resb 10000 +;thedrive resb 10000 +;dummys resb 10000 + diff --git a/install/mbrol/partition.h b/install/mbrol/partition.h new file mode 100644 index 0000000..96800f8 --- /dev/null +++ b/install/mbrol/partition.h @@ -0,0 +1,10 @@ +struc part +Active resb 1 +StartH resb 1 +StartCS resw 1 +Kind resb 1 +EndH resb 1 +EndCS resw 1 +StartSector resd 1 +NumSector resd 1 +endstruc diff --git a/lib/8x8fnt.c b/lib/8x8fnt.c new file mode 100644 index 0000000..e786385 --- /dev/null +++ b/lib/8x8fnt.c @@ -0,0 +1,130 @@ +static u8 font8x8 [2048] = { + 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x7E, 0x81, 0xA5, 0x81, 0xBD, 0x99, 0x81, 0x7E, + 0x7E, 0xFF, 0xDB, 0xFF, 0xC3, 0xE7, 0xFF, 0x7E, 0x6C, 0xFE, 0xFE, 0xFE, 0x7C, 0x38, 0x10, 0x00, + 0x10, 0x38, 0x7C, 0xFE, 0x7C, 0x38, 0x10, 0x00, 0x38, 0x7C, 0x38, 0xFE, 0xFE, 0xD6, 0x10, 0x38, + 0x10, 0x38, 0x7C, 0xFE, 0xFE, 0x7C, 0x10, 0x38, 0x00, 0x00, 0x18, 0x3C, 0x3C, 0x18, 0x00, 0x00, + 0xFF, 0xFF, 0xE7, 0xC3, 0xC3, 0xE7, 0xFF, 0xFF, 0x00, 0x3C, 0x66, 0x42, 0x42, 0x66, 0x3C, 0x00, + 0xFF, 0xC3, 0x99, 0xBD, 0xBD, 0x99, 0xC3, 0xFF, 0x0F, 0x07, 0x0F, 0x7D, 0xCC, 0xCC, 0xCC, 0x78, + 0x3C, 0x66, 0x66, 0x66, 0x3C, 0x18, 0x7E, 0x18, 0x3F, 0x33, 0x3F, 0x30, 0x30, 0x70, 0xF0, 0xE0, + 0x7F, 0x63, 0x7F, 0x63, 0x63, 0x67, 0xE6, 0xC0, 0x18, 0xDB, 0x3C, 0xE7, 0xE7, 0x3C, 0xDB, 0x18, + 0x80, 0xE0, 0xF8, 0xFE, 0xF8, 0xE0, 0x80, 0x00, 0x02, 0x0E, 0x3E, 0xFE, 0x3E, 0x0E, 0x02, 0x00, + 0x18, 0x3C, 0x7E, 0x18, 0x18, 0x7E, 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0x38, 0x18, 0x18, 0x3C, 0x00, + 0x0C, 0x18, 0x7C, 0xC6, 0xC6, 0xC6, 0x7C, 0x00, 0x18, 0x30, 0xCC, 0xCC, 0xCC, 0xCC, 0x76, 0x00, + 0x76, 0xDC, 0x00, 0xDC, 0x66, 0x66, 0x66, 0x00, 0x76, 0xDC, 0x00, 0xE6, 0xF6, 0xDE, 0xCE, 0x00, + 0x3C, 0x6C, 0x6C, 0x3E, 0x00, 0x7E, 0x00, 0x00, 0x38, 0x6C, 0x6C, 0x38, 0x00, 0x7C, 0x00, 0x00, + 0x18, 0x00, 0x18, 0x18, 0x30, 0x63, 0x3E, 0x00, 0x7E, 0x81, 0xB9, 0xA5, 0xB9, 0xA5, 0x81, 0x7E, + 0x00, 0x00, 0x00, 0xFE, 0x06, 0x06, 0x00, 0x00, 0x63, 0xE6, 0x6C, 0x7E, 0x33, 0x66, 0xCC, 0x0F, + 0x63, 0xE6, 0x6C, 0x7A, 0x36, 0x6A, 0xDF, 0x06, 0x18, 0x00, 0x18, 0x18, 0x3C, 0x3C, 0x18, 0x00, + 0x00, 0x33, 0x66, 0xCC, 0x66, 0x33, 0x00, 0x00, 0x00, 0xCC, 0x66, 0x33, 0x66, 0xCC, 0x00, 0x00, + 0x22, 0x88, 0x22, 0x88, 0x22, 0x88, 0x22, 0x88, 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA, 0x55, 0xAA, + 0x77, 0xDD, 0x77, 0xDD, 0x77, 0xDD, 0x77, 0xDD, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, + 0x18, 0x18, 0x18, 0x18, 0xF8, 0x18, 0x18, 0x18, 0x30, 0x60, 0x38, 0x6C, 0xC6, 0xFE, 0xC6, 0x00, + 0x7C, 0x82, 0x38, 0x6C, 0xC6, 0xFE, 0xC6, 0x00, 0x18, 0x0C, 0x38, 0x6C, 0xC6, 0xFE, 0xC6, 0x00, + 0x7E, 0x81, 0x9D, 0xA1, 0xA1, 0x9D, 0x81, 0x7E, 0x36, 0x36, 0xF6, 0x06, 0xF6, 0x36, 0x36, 0x36, + 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x36, 0x00, 0x00, 0xFE, 0x06, 0xF6, 0x36, 0x36, 0x36, + 0x36, 0x36, 0xF6, 0x06, 0xFE, 0x00, 0x00, 0x00, 0x18, 0x18, 0x7E, 0xC0, 0xC0, 0x7E, 0x18, 0x18, + 0x66, 0x66, 0x3C, 0x7E, 0x18, 0x7E, 0x18, 0x18, 0x00, 0x00, 0x00, 0x00, 0xF8, 0x18, 0x18, 0x18, + 0x18, 0x18, 0x18, 0x18, 0x1F, 0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0x18, 0xFF, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0xFF, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x18, 0x1F, 0x18, 0x18, 0x18, + 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x18, 0x18, 0x18, 0x18, 0xFF, 0x18, 0x18, 0x18, + 0x76, 0xDC, 0x7C, 0x06, 0x7E, 0xC6, 0x7E, 0x00, 0x76, 0xDC, 0x38, 0x6C, 0xC6, 0xFE, 0xC6, 0x00, + 0x36, 0x36, 0x37, 0x30, 0x3F, 0x00, 0x00, 0x00, 0x00, 0x00, 0x3F, 0x30, 0x37, 0x36, 0x36, 0x36, + 0x36, 0x36, 0xF7, 0x00, 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0xF7, 0x36, 0x36, 0x36, + 0x36, 0x36, 0x37, 0x30, 0x37, 0x36, 0x36, 0x36, 0x00, 0x00, 0xFF, 0x00, 0xFF, 0x00, 0x00, 0x00, + 0x36, 0x36, 0xF7, 0x00, 0xF7, 0x36, 0x36, 0x36, 0x00, 0xC6, 0x7C, 0xC6, 0xC6, 0x7C, 0xC6, 0x00, + 0x30, 0x7E, 0x0C, 0x7C, 0xCC, 0xCC, 0x78, 0x00, 0xF8, 0x6C, 0x66, 0xF6, 0x66, 0x6C, 0xF8, 0x00, + 0x7C, 0x82, 0xFE, 0xC0, 0xFC, 0xC0, 0xFE, 0x00, 0xC6, 0x00, 0xFE, 0xC0, 0xFC, 0xC0, 0xFE, 0x00, + 0x30, 0x18, 0xFE, 0xC0, 0xFC, 0xC0, 0xFE, 0x00, 0x00, 0x00, 0x38, 0x18, 0x18, 0x18, 0x3C, 0x00, + 0x0C, 0x18, 0x3C, 0x18, 0x18, 0x18, 0x3C, 0x00, 0x3C, 0x42, 0x3C, 0x18, 0x18, 0x18, 0x3C, 0x00, + 0x66, 0x00, 0x3C, 0x18, 0x18, 0x18, 0x3C, 0x00, 0x18, 0x18, 0x18, 0x18, 0xF8, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x1F, 0x18, 0x18, 0x18, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, + 0x00, 0x00, 0x00, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x18, 0x18, 0x18, 0x00, 0x00, 0x18, 0x18, 0x18, + 0x30, 0x18, 0x3C, 0x18, 0x18, 0x18, 0x3C, 0x00, 0xFF, 0xFF, 0xFF, 0xFF, 0x00, 0x00, 0x00, 0x00, + 0x30, 0x60, 0x38, 0x6C, 0xC6, 0x6C, 0x38, 0x00, 0x78, 0xCC, 0xCC, 0xD8, 0xCC, 0xC6, 0xCC, 0x00, + 0x7C, 0x82, 0x38, 0x6C, 0xC6, 0x6C, 0x38, 0x00, 0x0C, 0x06, 0x38, 0x6C, 0xC6, 0x6C, 0x38, 0x00, + 0x76, 0xDC, 0x7C, 0xC6, 0xC6, 0xC6, 0x7C, 0x00, 0x76, 0xDC, 0x38, 0x6C, 0xC6, 0x6C, 0x38, 0x00, + 0x00, 0x00, 0x66, 0x66, 0x66, 0x66, 0x7C, 0xC0, 0xE0, 0x60, 0x7C, 0x66, 0x66, 0x7C, 0x60, 0xF0, + 0xF0, 0x60, 0x7C, 0x66, 0x7C, 0x60, 0xF0, 0x00, 0x18, 0x30, 0xC6, 0xC6, 0xC6, 0xC6, 0x7C, 0x00, + 0x7C, 0x82, 0x00, 0xC6, 0xC6, 0xC6, 0x7C, 0x00, 0x60, 0x30, 0xC6, 0xC6, 0xC6, 0xC6, 0x7C, 0x00, + 0x18, 0x30, 0xC6, 0xC6, 0xC6, 0x7E, 0x06, 0xFC, 0x0C, 0x18, 0x66, 0x66, 0x3C, 0x18, 0x3C, 0x00, + 0xFF, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x0C, 0x18, 0x30, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x7E, 0x00, 0x00, 0x00, 0x00, 0x18, 0x18, 0x7E, 0x18, 0x18, 0x00, 0x7E, 0x00, + 0x00, 0x00, 0x00, 0x00, 0x00, 0xFF, 0x00, 0xFF, 0xE1, 0x32, 0xE4, 0x3A, 0xF6, 0x2A, 0x5F, 0x86, + 0x7F, 0xDB, 0xDB, 0x7B, 0x1B, 0x1B, 0x1B, 0x00, 0x3E, 0x61, 0x3C, 0x66, 0x66, 0x3C, 0x86, 0x7C, + 0x00, 0x18, 0x00, 0x7E, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x18, 0x0C, 0x38, + 0x38, 0x6C, 0x6C, 0x38, 0x00, 0x00, 0x00, 0x00, 0x00, 0xC6, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x00, 0x18, 0x00, 0x00, 0x00, 0x00, 0x18, 0x38, 0x18, 0x18, 0x3C, 0x00, 0x00, 0x00, + 0x78, 0x0C, 0x38, 0x0C, 0x78, 0x00, 0x00, 0x00, 0x78, 0x0C, 0x18, 0x30, 0x7C, 0x00, 0x00, 0x00, + 0x00, 0x00, 0x3C, 0x3C, 0x3C, 0x3C, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00 +}; diff --git a/lib/makefile b/lib/makefile new file mode 100644 index 0000000..6348347 --- /dev/null +++ b/lib/makefile @@ -0,0 +1,17 @@ +FREEC=gcc -O2 -nostdinc -ffreestanding -fno-builtin -fomit-frame-pointer -Wall -I ../Include -c +PARTIAL=-r +OBJS= string.o vgatxt.o + +all: makeall + +makeall: $(OBJS) + (sync;ld $(PARTIAL) -o libs.o $(OBJS)) + +vgatxt.o:vgatxt.c + $(FREEC) $^ + +string.o:string.c + $(FREEC) $^ +clean: + rm -f *.o + diff --git a/lib/modes.c b/lib/modes.c new file mode 100644 index 0000000..de3b38f --- /dev/null +++ b/lib/modes.c @@ -0,0 +1,118 @@ +#define maxgraphmode 5 +#define maxtextmode 5 + +static mode_def textmodes[maxtextmode] = { + + /*MODE 0, 40*25 16 couleurs */ + { + 0x67,0x00,0x03,0x08,0x03,0x00,0x02, + 0x2D,0x27,0x28,0x90,0x2B,0x0A,0xBF,0x1F,0x00,0x4F,0x0D,0x0E,0x00,0x00,0x00,0x00, + 0x9C,0x8E,0x8F,0x14,0x1F,0x96,0xB9,0xA3,0xFF, + 0x00,0x00,0x00,0x00,0x00,0x10,0x0E,0x00,0xFF, + 0x00,0x01,0x02,0x03,0x04,0x05,0x14,0x07,0x38,0x39,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F, + 0x0C,0x00,0x0F,0x08,0x00, + 40,25 + }, + + /*MODE 1, 80*25 16 couleurs */ + { + 0x67,0x00,0x03,0x00,0x03,0x00,0x02, + 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, + 0x00,0x00,0x00,0x00,0x00,0x10,0x0E,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 + }, + + /*MODE 2, 80*50 16 couleurs */ + { + 0x63,0x00,0x03,0x01,0x03,0x01,0x02, + 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, + 0x00,0x00,0x00,0x00,0x00,0x10,0x0E,0x00,0xFF, + 0x00,0x01,0x02,0x03,0x04,0x05,0x14,0x07,0x10,0x11,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F, + 0xCF,0x00,0x0F,0x00,0x00, + 80,50 + }, + + /*MODE 3, 100*50 16 couleurs */ + { + 0x67,0x00,0x03,0x01,0x03,0x01,0x02, + 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, + 0x00,0x00,0x00,0x00,0x00,0x10,0x0E,0x00,0xFF, + 0x00,0x01,0x02,0x03,0x04,0x05,0x14,0x07,0x10,0x11,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F, + 0x0C,0x00,0x0F,0x00,0x00, + 100,50 + }, + + /*MODE 4, 100*60 16 couleurs */ + { + 0xA7,0x00,0x03,0x01,0x03,0x01,0x02, + 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, + 0x00,0x00,0x00,0x00,0x00,0x10,0x0E,0x00,0xFF, + 0x00,0x01,0x02,0x03,0x04,0x05,0x14,0x07,0x10,0x11,0x3A,0x3B,0x3C,0x3D,0x3E,0x3F, + 0x0C,0x00,0x0F,0x00,0x00, + 100,60 + } + }; + + +static mode_def graphmodes[maxgraphmode] = { + /*MODE 80, 320*200 256 couleurs */ + { + 0x63,0x00,0x03,0x01,0x0F,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 + }, + + /*MODE 81, 320*400 256 couleurs */ + { + 0x63,0x00,0x03,0x01,0x0F,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 + }, + + /*MODE 82, 320*480 256 couleurs */ + { + 0xE3,0x00,0x03,0x01,0x0F,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 + }, + + /*MODE 83, 360*480 256 couleurs */ + { + 0xE7,0x00,0x03,0x01,0x0F,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 + }, + + /*MODE 84, 400*600 256 couleurs */ + { + 0xE7,0x00,0x03,0x01,0x0F,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 + } + }; diff --git a/lib/string.c b/lib/string.c new file mode 100644 index 0000000..a4ca0df --- /dev/null +++ b/lib/string.c @@ -0,0 +1,11 @@ +#include "types.h" + +void memset(void *dst, u8 val, u16 count,u32 size) +{ + u8 *temp; + for(temp = (u8 *)dst; count != 0; count--) +{ +temp+=size; +*temp = val; +} +} diff --git a/lib/vgatxt.c b/lib/vgatxt.c new file mode 100644 index 0000000..046542d --- /dev/null +++ b/lib/vgatxt.c @@ -0,0 +1,88 @@ +#include "vga.h" +#include "string.h" +#include "asm.h" + +#include "modes.c" +#include "8x8fnt.c" + +#define sequencer 0x3c4 +#define misc 0x3c2 +#define ccrt 0x3D4 +#define attribs 0x3c0 +#define graphics 0x3ce +#define state 0x3da + + +static u16 resX,resY,cursX,cursY; /* resolution x,y en caractères et position du curseur */ +static u16 pages,pagesize,activepage; /* nombre de pages disponibles et taille d'une page */ +static u8 vmode; /* mode en cours d'utilisation */ +static u16 basemem; /* debut de la mémoire vidéo */ +static bool scrolling,graphic; /* Activation du défilement, Flag du mode graphique */ + + +void print (u8* string) +{ + u8 *source,*screen; + source = string; + screen = (u8 *)TEXTSCREEN; + while(*source!=0x00) + { + *screen = *source; + screen+=2; + source++; + } +} + +void cls (void) +{ + memset((u8 *)TEXTSCREEN,0x20,(80*25*2),2); +} + + +u16 setvmode(u8 choosedmode) +{ + u8 *def,i,mode; + + mode=choosedmode&0x7F; + if (choosedmode>0x7F) + { + if (mode>maxgraphmode) return 1; /* mode inexistant */ + def=(u8 *)&graphmodes[mode]; + graphic=true; + } + else + { + if (mode>maxtextmode) return 1; /* mode inexistant */ + def=(u8 *)&textmodes[mode]; + graphic=false; + } + outb(misc,*def++); + outb(state,*def++); + for(i=0;i<5;i++) + { + outb(sequencer,i); + outb(sequencer+1,*def++); + } + outb(ccrt,0x11); + outb(ccrt+1,0x0E); + for(i=0;i<25;i++) + { + outb(ccrt,i); + outb(ccrt+1,*def++); + } + for(i=0;i<9;i++) + { + outb(graphics,i); + outb(graphics+1,*def++); + } + inb(state); + for(i=0;i<21;i++) + { + inb(attribs); + outb(attribs,i); + outb(attribs,*def++); + } + inb(state); + outb(attribs,0x20); + return 0; +} diff --git a/makefile b/makefile new file mode 100644 index 0000000..bf21808 --- /dev/null +++ b/makefile @@ -0,0 +1,29 @@ +all: makall + +makall: boot/boot12.bin installer/mbrol.com lib/libs.o system/system.sys + sync + +clean: + (cd system; make clean) + (cd boot; make clean) + (cd install; make clean) + (cd lib;make clean) + sync + +backup: clean + (cd .. ; tar cf - cos | gzip -f - > backup.tar.gz) + +allbackup: backup + (echo Inserez une disquette; sleep ; cp ../backup.tar.bz2 /dev/fd0) + +system/system.sys: + (cd system; make) + +boot/boot12.bin: + (cd boot; make) + +installer/mbrol.com: + (cd install; make) + +lib/libs.o: + (cd lib; make) \ No newline at end of file diff --git a/system/loader.asm b/system/loader.asm new file mode 100644 index 0000000..7b9deef --- /dev/null +++ b/system/loader.asm @@ -0,0 +1,227 @@ +[BITS 16] +[ORG 0x100] + + SECTION .text + push cs + push cs + pop ds + pop es + call EnableA20 + mov si,msgpmode + call showstr + mov ax,cs + mov [RealCS],ax + lea ax,[Real] + mov [RealIP],ax + + xor eax,eax + mov ax,cs + shl eax,4 + mov [GDT.Entry1+2],ax + mov [GDT.Entry2+2],ax + mov [GDT.Entry4+2],ax + mov [GDT.Entry5+2],ax + shr eax,16 + mov [GDT.Entry1+4],al + mov [GDT.Entry2+4],al + mov [GDT.Entry4+4],al + mov [GDT.Entry5+4],al + + xor eax,eax + mov ax,cs + shl eax,4 + add eax,gdt0 + mov [GDTR.Address],eax + lgdt [GDTR] + + cli + ;mov al,0xFF + ;out 0x21,al + mov al,0x80 + out 0x70,al + + mov eax,cr0 + or al,1 + mov cr0,eax + + jmp SYS_CODE_SEL:GoPMode32 + +GoPMode32: +[BITS 32] + mov ax,SYS_DATA_SEL + mov ds,ax + mov ecx,50000/4 + cld + mov esi,kernel + mov edi,0x100000 + mov ax,ALL_DATA_SEL + mov es,ax + mov gs,ax + mov fs,ax + mov ss,ax + rep movsd + mov ds,ax + mov esp,0x3fffff + call KERNEL_SEL:0x100000 + jmp REAL_CODE_SEL:GoReal + +GoReal: +[BITS 16] + mov ax,REAL_DATA_SEL + mov ds,ax + mov es,ax + mov ss,ax + mov gs,ax + mov fs,ax + mov esp,0xffff + + mov eax,cr0 + and al,0xFE + mov cr0,eax + + jmp far [RealIP] + +Real: + jmp Real + +msgpmode db 'Pmode loader is loading',0 + +;======================SHOWSTR======================== +;Affiche la chaine de caractère pointé par ds:si à l'écran +;-> DS, SI +;<- Flag Carry si erreur +;===================================================== +showstr: + pusha +Next_Char: + lodsb + or al,al + jz End_Show + mov ah,0x0E + mov bx,0x07 + int 0x10 + jmp Next_Char +End_Show: + popa + ret + + +;***********************EnableA20******************************* +;-> +;<- +;Ouvre l'autoroute A20 +;*************************************************************** +EnableA20: + cli + call ClearKeybBuffer + call WaitKeybCommand + mov al,0xd1 + out 0x64,al + call WaitKeybCommand + mov al,0xdf + out 0x60,al + call WaitKeybCommand + jmp A20Enabled +WaitKeybCommand: + in al,0x64 + test al,0x02 + jnz WaitKeybCommand + ret +ClearKeybBuffer: + in al,0x64 + test al,0x01 + jnz ReadKeyb + ret +ReadKeyb: + in al,0x60 + jmp ClearKeybBuffer +A20Enabled: + sti + ret + +section .data + +RealIP: dw 0 +RealCS: dw 0 + +GDTR: +.Size: dw GDT_END +.Address: dd 0 + + + +gdt0 equ $ ; null entry +GDT: +.Entry0: dw 0 ; limit 15:0 + dw 0 ; base 15:0 + db 0 ; base 23:16 + db 0 ; type + db 0 ; limit 19:16, flags + db 0 ; base 31:24 + + +SYS_CODE_SEL equ $-gdt0 ; code segment descriptor + +.Entry1: dw 0xFFFF + dw 0x0 ; base + db 0x0 ; base + db 0x9A ; present, ring 0, code, non-conforming, readable + db 0x40 ; 32 bit + db 0 + + +SYS_DATA_SEL equ $-gdt0 ; data segment descriptor + +.Entry2: dw 0xFFFF + dw 0x0 ; base + db 0x0 ; base + db 0x92 ; present, ring 0, data, expand-up, writable + db 0x40 ; 32 bit + db 0 + + +ALL_DATA_SEL equ $-gdt0 ; 4meg data segment descriptor + +.Entry3: dw 0x03ff + dw 0x0 ; base + db 0x0 ; base + db 0x92 ; present, ring 0, data, expand-up, writable + db 0xcf ; 4k pages, 32 bit + db 0 + + +REAL_CODE_SEL equ $-gdt0 ; code segment descriptor for 16 bit mode + +.Entry4: dw 0xFFFF + dw 0x0 ; base + db 0x0 ; base + db 0x9A ; present, ring 0, code, non-conforming, readable + db 0x00 ; 16 bit + db 0 + + +REAL_DATA_SEL equ $-gdt0 ; data segment descriptor for 16 bit mode + +.Entry5: dw 0xFFFF + dw 0x0 ; base + db 0x0 ; base + db 0x92 ; present, ring 0, data, expand-up, writable + db 0x00 ; 16 bit + db 0 + + +KERNEL_SEL equ $-gdt0 ; 4meg code segment descriptor + +.Entry6: dw 0x03ff + dw 0x0 ; base + db 0x0 ; base + db 0x9A ; present, ring 0, code, non-conforming, readable + db 0xcf ; 4k pages, 32 bit + db 0 + +GDT_END equ $-gdt0 -1 + + kernel: + + SECTION .bss + diff --git a/system/makefile b/system/makefile new file mode 100644 index 0000000..ca416e6 --- /dev/null +++ b/system/makefile @@ -0,0 +1,31 @@ +FREEC=gcc -O2 -nostdinc -ffreestanding -fno-builtin -fomit-frame-pointer -Wall -I ../Include -c -o + + +LINK=ld -Ttext 0x100000 -e __main -o + +all: system.sys + sync + +copy: + (cp system.sys /cygdrive/a) + +copy2: + (cp system.sys /cygdrive/b) + +system.sys: + nasm -f bin -o loader.bin loader.asm + nasm -f elf -o system.o system.asm + + $(FREEC) systemc.o system.c + $(LINK) system.out systemc.o system.o ../lib/libs.o + objcopy -O binary system.out system.bin + cat loader.bin>system.sys + cat system.bin>>system.sys + +clean: + rm -f *.o + rm -f *.out + rm -f *.bin + rm -f *.sys + + diff --git a/system/system.asm b/system/system.asm new file mode 100644 index 0000000..933909c --- /dev/null +++ b/system/system.asm @@ -0,0 +1,5 @@ +[BITS 32] + + + SECTION .text + diff --git a/system/system.c b/system/system.c new file mode 100644 index 0000000..548cb3e --- /dev/null +++ b/system/system.c @@ -0,0 +1,8 @@ +#include "vga.h" + +int __main(void) { + setvmode(1); + cls(); + print("Hello cos is here !"); + while(1); +}