📄 自己动手写操作系统（三）（完结篇）.mht
字号:
512 ; =
=C3=BF=D2=BB=C9=C8=C7=F8=B5=C4=D7=D6=BD=DA=CA=FD<BR>db 1 ;=20
=C3=BF=D2=BB=B4=D8=B5=C4=C9=C8=C7=F8=CA=FD<BR>dw =
1 ; =B1=A3=C1=F4=B5=C4=C9=C8=C7=F8=BA=C5<BR>db 2 =
=20
<BR>dw 0x00e0 =
=20
<BR>dw 0x0b40 =
=20
=
<BR>db=20
0x0f0 =20
<BR>dw 9 =
=20
=20
<BR>dw 18 =
=20
=20
<BR>dw 2 ; =
=B6=C1=D0=B4=C9=C8=C7=F8=BA=C5<BR>dw=20
0 ; =
=D2=FE=B2=D8=C9=C8=C7=F8=BA=C5<BR>print_mesg :<BR> mov=20
ah,0x13 ; =
=CA=B9=D3=C3=D6=D0=B6=CF10h=B5=C4=B9=A6=C4=DC13=A3=AC=D4=DA=C6=C1=C4=BB=C9=
=CF=D0=B4=D2=BB=B8=F6=D7=D6=B7=FB=B4=AE<BR> =20
mov al,0x00 ; =
=BE=F6=B6=A8=B5=F7=D3=C3=BA=AF=CA=FD=BA=F3=B9=E2=B1=EA=CB=F9=B4=A6=B5=C4=CE=
=BB=D6=C3<BR> =20
mov bx,0x0007 ; =
=C9=E8=D6=C3=CF=D4=CA=BE=CA=F4=D0=D4<BR> =20
mov cx,0x20 ; =
=D4=DA=B4=CB=D7=D6=B7=FB=B4=AE=B3=A4=B6=C8=CE=AA32 <BR> =20
mov dx,0x0000 ; =
=B9=E2=B1=EA=B5=C4=C6=F0=CA=BC=D0=D0=BA=CD=C1=D0<BR> =20
int 0x10 ; =
=B5=F7=D3=C3BIOS=B5=C4=D6=D0=B6=CF10h<BR> =20
ret ; =
=B7=B5=BB=D8=B5=F7=D3=C3=B3=CC=D0=F2<BR>get_key :<BR> =20
mov ah,0x00 =
=20
<BR> int 0x16 ;=20
=
Get_key=CA=B9=D3=C3=D6=D0=B6=CF16h=B5=C4=B9=A6=C4=DC0=A3=AC=B6=C1=C8=A1=CF=
=C2=D2=BB=B8=F6=D7=D6=B7=FB<BR> ret<BR>clrscr=20
:<BR> mov ax,0x0600 ;=20
=
=CA=B9=D3=C3=D6=D0=B6=CF10h=B5=C4=B9=A6=C4=DC6=A3=AC=CA=B5=CF=D6=BE=ED=C6=
=C1=A3=AC=C8=E7=B9=FBal=3D0=D4=F2=C7=E5=C6=C1<BR> mov=20
cx,0x0000 ; =C7=E5=C6=C1<BR> =
mov=20
dx,0x174f ; =
=BE=ED=C6=C1=D6=C123=A3=AC79<BR> mov=20
bh,0 ; =
=CA=B9=D3=C3=D1=D5=C9=AB0=C0=B4=CC=EE=B3=E4<BR> int=20
0x10 ; =
=B5=F7=D3=C310h=D6=D0=B6=CF<BR> =20
ret<BR>begin_boot :<BR> call=20
clrscr ; =
=CF=C8=C7=E5=C6=C1<BR> mov=20
bp,bootmesg ; =
=CC=E1=B9=A9=B4=AE=B5=D8=D6=B7<BR> call=20
print_mesg ; =
=CA=E4=B3=F6=D0=C5=CF=A2<BR> call=20
get_key ; =
=
=B5=C8=B4=FD=D3=C3=BB=A7=B0=B4=CF=C2=C8=CE=D2=BB=BC=FC<BR>bits =
16<BR> call=20
clrscr ; =C7=E5=C6=C1<BR> =
mov=20
ax,0xb800 ; =
=CA=B9gs=D6=B8=CF=F2=CF=D4=CA=BE=C4=DA=B4=E6<BR> mov=20
gs,ax ; =
=D4=DA=CA=B5=C4=A3=CA=BD=CF=C2=CF=D4=CA=BE=D2=BB=B8=F6=D7=D8=C9=AB=B5=C4A=
<BR> mov=20
word [gs:0],0x641 ; =
=CF=D4=CA=BE<BR> call=20
get_key ; =
=B5=F7=D3=C3Get_key=B5=C8=B4=FD=D3=C3=BB=A7=B0=B4=CF=C2=C8=CE=D2=BB=BC=FC=
<BR> =20
mov=20
=
bp,pm_mesg ; =C9=E8=D6=C3=B4=AE=D6=B8=D5=EB<BR>&nbs=
p;=20
call print_mesg ;=20
=
=B5=F7=D3=C3print_mesg=D7=D3=B3=CC=D0=F2<BR> call=20
get_key ; =
=B5=C8=B4=FD=B0=B4=BC=FC<BR> call=20
clrscr ; =C7=E5=C6=C1<BR> =
cli ;=20
=B9=D8=D6=D0=B6=CF<BR> =
lgdt[gdtr] ; =BC=D3=D4=D8GDT =20
<BR> mov =
eax,cr0 =20
=
<BR> =20
or al,0x01 ; =
=C9=E8=D6=C3=B1=A3=BB=A4=C4=A3=CA=BD=CE=BB<BR> =20
mov cr0,eax ; =
=BD=AB=B8=FC=B8=C4=BA=F3=B5=C4=D7=D6=CB=CD=D6=C1=BF=D8=D6=C6=BC=C4=B4=E6=C6=
=F7=D6=D0<BR> =20
jmp codesel:go_pm<BR>bits 32<BR>go_pm : =
<BR> =20
mov ax,datasel <BR> =
mov=20
ds,ax ; =
=B3=F5=CA=BC=BB=AFds=BA=CDes=A3=AC=CA=B9=C6=E4=D6=B8=CF=F2=CA=FD=BE=DD=B6=
=CE<BR> mov=20
es,ax <BR> =
mov=20
ax,videosel ; =
=B3=F5=CA=BC=BB=AFgs=A3=AC=CA=B9=C6=E4=D6=B8=CF=F2=CF=D4=CA=BE=C4=DA=B4=E6=
<BR> =20
mov gs,ax =
<BR> =20
mov word [gs:0],0x741 ; =
=D4=DA=B1=A3=BB=A4=C4=A3=CA=BD=CF=C2=CF=D4=CA=BE=D2=BB=B8=F6=B0=D7=C9=AB=B5=
=C4=D7=D6=B7=FBA<BR>spin :=20
jmp spin ; =D1=AD=BB=B7<BR>bits =
16<BR>gdtr :<BR> =20
dw gdt_end-gdt-1 ; =
gdt=B5=C4=B3=A4=B6=C8<BR> =20
dd gdt ; =
gdt=B5=C4=CE=EF=C0=ED=B5=D8=D6=B7<BR>gdt<BR>nullsel equ=20
$-gdt ; =
$=D6=B8=CF=F2=B5=B1=C7=B0=CE=BB=D6=C3=A3=AC=CB=F9=D2=D4nullsel =3D=20
0h<BR>gdt0 ; =
=BF=D5=C3=E8=CA=F6=B7=FB<BR> dd 0 =20
=
=20
<BR> =
dd=20
0 ; =
=CB=F9=D3=D0=B5=C4=B6=CE=C3=E8=CA=F6=B7=FB=B6=BC=CA=C764=CE=BB=B5=C4<BR>c=
odesel equ=20
$-gdt ; =
=D5=E2=CA=C78h=D2=B2=BE=CD=CA=C7gdt=B5=C4=B5=DA=B6=FE=B8=F6=C3=E8=CA=F6=B7=
=FB<BR>code_gdt =20
=
=20
<BR> =
dw=20
0x0ffff ; =
=B6=CE=C3=E8=CA=F6=B7=FB=B5=C4=BD=E7=CF=DE=CA=C74Gb<BR> dw=20
0x0000 =
=20
<BR> db 0x00 =
=20
<BR> =
db=20
0x09a =
<BR> =20
db 0x0cf =
=20
<BR> db 0x00 =20
<BR>datasel equ $-gdt =
=20
<BR>data_gdt =
=20
=20
<BR> =
dw=20
0x0ffff =
=20
<BR> dw =
0x0000 =20
=20
<BR> db 0x00 =
=20
=20
<BR> db =
0x092<BR> =20
db 0x0cf<BR> db =
0x00<BR>videosel equ=20
$-gdt =20
<BR> dw 3999 =
=20
=20
<BR> dw=20
0x8000 ; =
=BB=F9=D6=B7=CA=C70xb8000<BR> db=20
0x0b<BR> db 0x92 =
=
<BR> =20
db 0x00 =20
<BR> =
db=20
0x00<BR>gdt_end<BR>times =
510-($-$$) db=20
0 <BR>dw=20
=
0x0aa55</FONT><BR><BR><BR><BR>=B0=D1=C9=CF=C3=E6=B5=C4=B4=FA=C2=EB=B4=E6=D4=
=DA=D2=BB=B8=F6=C3=FB=CE=AAabc.asm=B5=C4=CE=C4=BC=FE=D6=AE=D6=D0=A3=AC=CA=
=B9=D3=C3=C3=FC=C1=EEnasm=20
=
abc.asm=A3=AC=BD=AB=B5=C3=B3=F6=D2=BB=B8=F6=C3=FB=CE=AAabc=B5=C4=CE=C4=BC=
=FE=A1=A3=C8=BB=BA=F3=B2=E5=C8=EB=C8=ED=C5=CC=A3=AC=CA=E4=C8=EB=C3=FC=C1=EE=
=A3=BAdd if=3Dabc=20
=
of=3D/dev/fd0=A1=A3=B8=C3=C3=FC=C1=EE=BD=AB=B0=D1=CE=C4=BC=FEabc=D0=B4=C8=
=EB=B5=BD=C8=ED=C5=CC=B5=C4=B5=DA=D2=BB=C9=C8=C7=F8=D6=AE=D6=D0=A1=A3=C8=BB=
=BA=F3=D6=D8=D0=C2=C6=F4=B6=AF=CF=B5=CD=B3=A3=AC=BE=CD=BB=E1=BF=B4=B5=BD=C8=
=E7=CF=C2=B5=C4=D0=C5=CF=A2=A3=BA=20
<BR><BR><FONT color=3Dgreen>*Our os=20
booting................ <BR>* A (=D7=D8=C9=AB) =
<BR>* Switching to=20
protected mode.... <BR>* A =
(=B0=D7=C9=AB)<BR></FONT><BR><BR><B>
=
<CENTER>=B6=D4=B4=FA=C2=EB=B5=C4=BD=E2=CA=CD</CENTER></B><BR>=C9=CF=C3=E6=
=B8=F8=B3=F6=C1=CB=CB=F9=D3=D0=B5=C4=B4=FA=C2=EB=A3=AC=CF=C2=C3=E6=CE=D2=B6=
=D4=C9=CF=CA=F6=B4=FA=C2=EB=D7=F6=D2=BB=D0=A9=BD=E2=CA=CD=A1=A3=20
<BR><BR>=A1=F4 =CA=B9=D3=C3=B5=C4=BA=AF=CA=FD =
<BR><BR>=CF=C2=C3=E6=CA=C7=B4=FA=C2=EB=D6=D0=D2=BB=D0=A9=BA=AF=CA=FD=B5=C4=
=CB=B5=C3=F7=A3=BA=20
<BR><BR>print_mesg=20
=
=B8=C3=D7=D3=B3=CC=D0=F2=CA=B9=D3=C3=C1=CBBIOS=D6=D0=B6=CF10h=B5=C4=B9=A6=
=C4=DC13h=A3=AC=BC=B4=CF=F2=C6=C1=C4=BB=D0=B4=D2=BB=D7=D6=B7=FB=B4=AE=A1=A3=
=CA=F4=D0=D4=BF=D8=D6=C6=CA=C7=CD=A8=B9=FD=CF=F2=D2=BB=D0=A9=BC=C4=B4=E6=C6=
=F7=D6=D0=CB=CD=C8=EB=B2=BB=CD=AC=B5=C4=D6=B5=C0=B4=CA=B5=CF=D6=B5=C4=A1=A3=
=D6=D0=B6=CF10h=CA=C7=D3=C3=D3=DA=B8=F7=D6=D6=D7=D6=B7=FB=B4=AE=B2=D9=D7=F7=
=A3=AC=CE=D2=C3=C7=B0=D1=D7=D3=B9=A6=C4=DC=BA=C513h=CB=CD=B5=BDah=D6=D0=A3=
=AC=D3=C3=D3=DA=D6=B8=C3=F7=D2=AA=B4=F2=D3=A1=D2=BB=B8=F6=D7=D6=B7=FB=B4=AE=
=A1=A3al=BC=C4=B4=E6=C6=F7=D6=D0=B5=C40=CB=B5=C3=F7=C1=CB=B9=E2=B1=EA=B7=B5=
=BB=D8=B5=C4=C6=F0=CA=BC=CE=BB=D6=C3=A3=AC0=B1=ED=CA=BE=B5=F7=D3=C3=BA=AF=
=CA=FD=BA=F3=B9=E2=B1=EA=B7=B5=BB=D8=B5=BD=CF=C2=D2=BB=D0=D0=B5=C4=D0=D0=CA=
=D7=A1=A3=C8=E7=B9=FBal=CE=AA1=D4=F2=B1=ED=CA=BE=B9=E2=B1=EA=CE=BB=D3=DA=D7=
=EE=BA=F3=D2=BB=B8=F6=D7=D6=B7=FB=B4=A6=A1=A3=20
=
<BR><BR>=CF=D4=B4=E6=B1=BB=B7=D6=B3=C9=C1=CB=BC=B8=D2=B3=A3=AC=D4=DA=CD=AC=
=D2=BB=CA=B1=BF=CC=D6=BB=C4=DC=CF=D4=CA=BE=C6=E4=D6=D0=B5=C4=D2=BB=D2=B3=A1=
=A3bh=D6=B8=C3=F7=B5=C4=CA=C7=D2=B3=BA=C5=A3=BBbl=D4=F2=D6=B8=C3=F7=D2=AA=
=CF=D4=CA=BE=D7=D6=B7=FB=B5=C4=D1=D5=C9=AB=A3=BBcx=D6=B8=C3=F7=D2=AA=CF=D4=
=CA=BE=D7=D6=B7=FB=B4=AE=B5=C4=B3=A4=B6=C8=A3=BBdx=D6=B8=C3=F7=B9=E2=B1=EA=
=B5=C4=CE=BB=D6=C3(=BC=B4=C6=F0=CA=BC=B5=C4=D0=D0=BA=CD=C1=D0)=A1=A3=CB=F9=
=D3=D0=CF=E0=B9=D8=BC=C4=B4=E6=C6=F7=B3=F5=CA=BC=BB=AF=CD=EA=B3=C9=D2=D4=BA=
=F3=A3=AC=BE=CD=BF=C9=D2=D4=B5=F7=D3=C3BIOS=D6=D0=B6=CF10h=C1=CB=A1=A3=20
<BR><BR>get_key =
=CA=B9=D3=C3=D6=D0=B6=CF16h=B5=C4=D7=D3=B9=A6=C4=DC00h=A3=AC=B4=D3=C6=C1=C4=
=BB=B5=C3=B5=BD=CF=C2=D2=BB=B8=F6=D7=D6=B7=FB=A1=A3=20
<BR><BR>clrscr=20
=
=B8=C3=BA=AF=CA=FD=CA=B9=D3=C3=C1=CB=D6=D0=B6=CF10h=B5=C4=C1=ED=CD=E2=D2=BB=
=B8=F6=D7=D3=B9=A6=C4=DC06h=A3=AC=D3=C3=D3=DA=CA=E4=B3=F6=BF=AA=CA=BC=C7=B0=
=C7=E5=C6=C1=A1=A3=B3=F5=CA=BC=BB=AF=CA=B1=B8=F8al=D6=D0=CB=CD=C8=EB0=A1=A3=
=BC=C4=B4=E6=C6=F7cx=BA=CDdx=D6=B8=C3=F7=D2=AA=C7=E5=C6=C1=B5=C4=C6=C1=C4=
=BB=B7=B6=CE=A7=A3=AC=D4=DA=B1=BE=C0=FD=D6=D0=CA=C7=D5=FB=B8=F6=C6=C1=C4=BB=
=A1=A3=BC=C4=B4=E6=C6=F7bh=D6=B8=C3=F7=C6=C1=C4=BB=CC=EE=B3=E4=B5=C4=D1=D5=
=C9=AB=A3=AC=D4=DA=B1=BE=C0=FD=D6=D0=CA=C7=BA=DA=C9=AB=A1=A3=20
<BR><BR>=A1=F4 =C6=E4=CB=FC=C4=DA=C8=DD=20
=
<BR><BR>=B3=CC=D0=F2=D2=BB=BF=AA=CA=BC=CA=C7=D2=BB=CC=F5=B6=CC=CC=F8=D7=AA=
=D6=B8=C1=EE=A3=AC=CC=F8=B5=BDbegin_boot=B4=A6=A1=A3=D4=DA=CA=B5=C4=A3=CA=
=BD=CF=C2=A3=AC=D4=DA=B4=CB=B4=F2=D3=A1=D2=BB=B8=F6=D7=D8=C9=AB=B5=C4=A1=B0=
A=A1=B1=A3=AC=B2=A2=C7=D2=C9=E8=D6=C3=D2=BB=B8=F6GDT=A1=A3=C7=D0=BB=BB=B5=
=BD=B1=A3=BB=A4=C4=A3=CA=BD=A3=AC=B2=A2=C7=D2=B4=F2=D3=A1=D2=BB=B8=F6=B0=D7=
=C9=AB=B5=C4=A1=B0A=A1=B1=A1=A3=D5=E2=C1=BD=D6=D6=C4=A3=CA=BD=CA=B9=D3=C3=
=B5=C4=B6=BC=CA=C7=D7=D4=BC=BA=B5=C4=D1=B0=D6=B7=B7=BD=B7=A8=A1=A3=20
=
<BR><BR>=D4=DA=CA=B5=C4=A3=CA=BD=CF=C2=A3=AC=CA=B9=D3=C3=B6=CE=BC=C4=B4=E6=
=C6=F7gs=D6=B8=CA=BE=CF=D4=B4=E6=CE=BB=D6=C3=A3=AC=CE=D2=C3=C7=CA=B9=D3=C3=
=B5=C4=CA=C7CGA=CF=D4=BF=A8(=C4=AC=C8=CF=BB=F9=D6=B7=CA=C70xb8000)=A1=A3=D4=
=DA=B4=FA=C2=EB=D6=D0=CA=C7=B2=BB=CA=C7=C2=A9=C1=CB=D2=BB=B8=F60=C4=D8=A3=
=BF=C3=BB=D3=D0=A3=AC=D2=F2=CE=AA=CA=B5=C4=A3=CA=BD=CF=C2=BB=E1=CC=E1=B9=A9=
=D2=BB=B8=F6=B8=BD=BC=D3=B5=C40=A1=A3=D5=E2=D6=D6=B7=BD=CA=BD=D2=B2=B1=BB=
80386=BC=CC=B3=D0=CF=C2=C0=B4=C1=CB=A1=A3A=B5=C4ASC=A2=F2=CA=C70x41=A3=AC=
0x06=D6=B8=C3=F7=C1=CB=D0=E8=D2=AA=D2=BB=B8=F6=D7=D8=C9=AB=B5=C4=D7=D6=B7=
=FB=A1=A3=B8=C3=CF=D4=CA=BE=BB=E1=D2=BB=D6=B1=B3=D6=D0=F8=D6=B1=D6=C1=B0=B4=
=CF=C2=C8=CE=D2=E2=BC=FC=A1=A3=CF=C2=C3=E6=D2=AA=D4=DA=C6=C1=C4=BB=C9=CF=CF=
=D4=CA=BE=D2=BB=BE=E4=BB=B0=A3=AC=B8=E6=CB=DF=CA=B9=D3=C3=D5=DF=CF=C2=C3=E6=
=C2=ED=C9=CF=D2=AA=BD=F8=C8=EB=B1=A3=BB=A4=C4=A3=CA=BD=C1=CB=A1=A3=20
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