THE CHAMPION - OF THE WOWLD!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

[[MPGH]Dave84311]

I GUESS I JUST GOT LOST TRYING TO BE SOME ONE ELSE TRYING TO KILL THE PAIN

WILL YOU JUST LET ME BE MYSELF

[radnomguywfq3]

Like I said, look at the features and get back to me. No rebuttal to that, then stfu. Enough said. My first statement still works.


Base? TUTORIAL? Something to hold your hand while your "writing" it... Boot Sector Tutorial 2 ? First Boot Sector - Building an OS

Nice base.

How does that relate with:

;[WORD WRAP PROTECTION]------------------------------------------------------------------------------------------------------------------------
; Written By: Jeremy. A. Wildsmith
; Copyright jetaos, 2009, Jeremy. A. Wildsmith
; Main executable of the bootloader.
[BITS 16] ; Describe code is 16-bit, in real-mode, the processor runs in 16-bit mode
[ORG 0x7C00] ; Tells the assembler where the code will be in memory
; after being loaded
jmp _start
;
;GDT
gdt:
gdt_null:
dq 0 ;First entry in the gdt is null, and is reserved for the processor.
;dq define quadword
gdt_code:
;DWORD1
dw 0x0FFFF ; Base is 0x0, limit is 0xFFFF. GDT Size is 0xFFFF bytes long
dw 0x0 ; No use of the last WORD

;DWORD2
db 0x0 ; First bits in base address is 0
db 10011010b ; Ring0, Is data or code|Readable, non-conforming, code segment. Segment is present
db 11001111b ; Limit 0x0F, 32bit size, 4Kb multiplier
db 0x0 ; Last bits in base address is 0
gdt_data:
;DWORD1
dw 0x0FFFF ; Base is 0(overlaps code segment) Limit is 0xFFFF
dw 0x0 ; No use of the last WORD
;DWORD2
db 0x0 ; First bits in base address
db 10010010b ; Non-conforming, writable, data segment, data or code, expands down, and is present
db 11001111b ; 32 bit, 'BIG' , LIMIT 0x0F
db 0x0 ; Last bits in the base address
gdt_end:
;GDT Descriptor
gdt_desc:
dw gdt_end - gdt ; Size of GDT
dd gdt ; Address of GDT
 
 
_start:
xor ax, ax ; Zero ax
mov ds, ax ; Setup data segment register to 0
mov es, ax ; Setup extra segment register.
mov [data_iBootDriveSource], dl ; Get boot source drive from dl register, and store it.
mov ebp, data_sBootMessage
call func_PrintSystemMessage ; Print system message
call func_GetSysMemory ; Get amount of RAM in the system.
mov [data_sysBootInfo + SysBootInfo.sysMemKbMain], cx ; Store result.
mov [data_sysBootInfo + SysBootInfo.sysMemKb64blk], dx ; Store result.
mov ax, 0x1000
mov di, ax
mov [data_sysBootInfo + SysBootInfo.pMemEntries], ax ; We want to store the memMap at es:di
call func_GetSysMemoryMap ; Get system memory map.
mov [data_sysBootInfo + SysBootInfo.numEntries], bp ; Bp contains number of entries

;mov al, 24
;mov ax, 3
;mul ax
;add di, ax
mov BX, 0x2000 ; Dump to ds:BX
mov AL, 30 ; Read 30 sectors
mov CL, 2 ; Start reading at sector 2
mov DL, byte [data_iBootDriveSource] ; Read from a drive defined in variable data_iBootDriveSource
call func_DumpSectors ; Dump selected sectors in DS:BX
mov ebp, data_sBooting ; Load message into ebp register
call func_PrintSystemMessage ; Print system message
;Load GDT
cli ; Clear interrupts
lgdt [gdt_desc] ; Load gdt
;Move processor into protected mode.
mov eax, cr0 ; Load CR0 into EAX
or eax, 1 ; Set the first bit in eax
mov cr0, eax ; Load EAX into CR0
JMP 08h:clear_pipe ; Clear pipe, setup stack and pass control to kernel

hlt ; Jump to current location(endless loop)
 
func_GetSysMemory:
push EBX
push EAX
;Null out all general purpose registers, different BIOS store results in different registers.
xor edx, edx
xor ecx, ecx
xor eax, eax
mov ax, 0xE801 ;Service 
int 0x15
jc jmp_BootError ;If carryflag is set, then an error occured getting memory.
cmp ah, 0x86 ; Function not supported.
je jmp_BootError
cmp ah, 0x80
je jmp_BootError
jcxz func_GetSysMemory_useEax ;Does the bios use registers EAX and EBX?
;Otherwise use ECX and EDX

jmp func_GetSysMemory_end
func_GetSysMemory_useEax: ;Means use Eax and Ebx
mov cx, ax
mov dx, bx
func_GetSysMemory_end:
add cx, 1024
pop EAX
pop EBX
ret
;bp = entry count
;es:di = Base of buffer.
func_GetSysMemoryMap:
mov eax, 0x0000E820 ;Some bios requires low-word to be cleared.
xor ebx, ebx ;Start at beginning.
xor bp, bp
mov ecx, 24 ;Size of buffer = 24 bytes
mov edx, 'PAMS' ;SMAP

INT 0x15
jc jmp_BootError
jcxz .skipentry ;If bytes read is zero bytes long, skip it.
.checkentry: ;Otherwise check it
mov ecx, [es:di + MemoryMapEntry.length] ;Load lower-dword of len
test ecx, ecx ;Is it zero
jne .goodentry ;If not jump to good entry
mov ecx, [es:di + MemoryMapEntry.length + 4] ;Load upper-dword of len
jecxz .skipentry ;Jump if ECX is zero
.goodentry:
inc bp
add di, 24
cmp ebx, 0
je .end
.nextentry:
mov edx, 'PAMS'
mov ecx, 24
mov eax, 0x0000E820
INT 0x15
jcxz .skipentry
jmp .checkentry
.skipentry:
cmp ebx, 0
jne .nextentry
.end:
ret;
func_DumpSectors:
; Assumes:
; Data segment is setup
; BX = offset to data segment where sector is loaded.
; AL = Number of sectors to read
; CL = Disk sector
; DL = Drive
func_DumpSectors_ResetDrive:
mov AH, 0x0 ; Call service 0
INT 0x13 ; Reset drive
jc func_DumpSectors_ResetDrive ; If carry Flag is set(reset drive failed) attempt to reset again

mov AH, 0x02 ; Service 2
mov CH, 0 ; Cylinder 0
mov DH, 0 ; Disk head
INT 0x13 ; Make call to service
jc func_DumpSectors_ResetDrive ; If carry Flag is set(read drive failed) attempt to reset again
ret ; Return to caller
jmp_BootError:
mov ebp, data_sError ; Load error message into ebp register.
call func_PrintSystemMessage ; Print message
call func_WaitForKey ; Wait for key press

 
func_WaitForKey:
xor ah, ah ;Make call to service 0
INT 0x16 ;Execute interrupt 0x10
ret
func_moveCursorDown:
pushad ;Reserve Registers
;Get cursor position
mov AH, 0x03 ;Get cursor position, DH = row, DL = Col
mov BH, 0x00 ;Page #0 = graphics mode
INT 0x10 ;Execute video interrupt
;Set cursor position
inc DH ;Increment current row by one
xor DL, DL ;Reset del register(col number)
mov AH, 0x02 ;Set cursor position
mov BH, 0x00 ;Page #0 = graphics mode
INT 0x10 ;Execute video interrupt

popad ;Restore Registers
retn 
func_PrintSystemMessage:

;Assumes ebp is base address of system message
push ebp ; Preserve ebp register.
mov ebp, data_sSystemPrefix ; Load ebp with system label prefix message
call func_PrintString ; Call Print Function
pop ebp ; Restore ebp register. Which is the system message
call func_PrintString ; Call print function
ret ; Return to caller
func_PrintString:
;Assume ebp contains pointer to start of string.
;$ == linedown char.
push ebp ; reserve ebp register.
@func_PrintString_loop1:
mov AL, byte [EBP] ; set al register to the character placed at ebp 
cmp AL, 0 ; if AL == 0
jz func_PrintString_end1 ; return

cmp AL, '$' ; if AL != linedown Char
jne func_PrintString_print ; print character

call func_moveCursorDown ; else linedown 
jmp func_PrintString_loop1_continue ; and continue loop
func_PrintString_print: 
call func_PrintChar ; print char placed in al register
func_PrintString_loop1_continue: 
inc EBP ; Increase ebp to move to next character
jmp @func_PrintString_loop1 ; go to start of loop
 
func_PrintString_end1: ; The end of the functions, all registers are
; restored to their state when callee made the call.
pop ebp ; Restore ebp register
retn ; return to caller
retn
func_PrintChar:
;Assume AL register contains ascii character to print. 
;Preserve registers. 
push EAX
push EBX
mov AH, 0x0E ; Service is 0x0E
mov BH, 0x00 ; Page #0
mov BL, 0x04 ; Colors
int 0x10 ; Call interrupt
;Restore registers
pop EBX
pop EAX

retn ; return to caller
 
[BITS 32] ;32 bit instructions for when the processor is put into protected mode.
clear_pipe: ;Assumes far jump was made to this code, at segment 0x8, which will cear the instruction pipe
mov ax, 10h ; Set AX Register to 0x10(16d), which points to the data segment
mov ds, ax ; Setup data segment
mov ss, ax ; Setup stack segment
mov esp, 090000h ; Move stack pointer to 0x90000 offset from data segment

push data_sysBootInfo ; push pointer to bootinfo struct.
call 02000h ; Jmp to kernel
add esp, 4 ; Cleanup stack
hlt ; If for some weird reason the jump isn't made, or a return jump is made, hault the processor to prevent it from executing..
;data, Strings are null terminated.

data_sError db 'Boot Error.$',0

data_sBootMessage db 'BL(b3.v[1.0])$',0
data_sSystemPrefix db '[SYS] ',0
data_sBooting db 'BL loading kern$',0
data_iBootDriveSource db 0
data_sysBootInfo dq 0

struc MemoryMapEntry
.addrBase resq 1
.length resq 1
.type resd 1 
.acpi_null resd 1 
endstruc
struc SysBootInfo
.pMemEntries resd 1
.numEntries resw 1
.sysMemKbMain resd 1
.sysMemKb64blk resd 1
endstruc
;NULL Memory Region + Bootloader Signature
TIMES 510 - ($ - $$) db 0 ; Fill the rest of the program with 0. $ = cur loc, 
; $$ == start 
; Bootloader must be 512 bytes long(Size of one sector).
DW 0xAA55 ;Apply signature telling the bios this is a valid boot loader.
;[WORD WRAP PROTECTION]------------------------------------------------------------------------------------------------------------------------

Only thing I see which is the same, is the bootsector signature at the end, the origin(and you probably know, the bios loads the bootsector at that location.) And the forcing to be the same size as one sector.

Even at that, that's hardly a base for a OS, it's not even a bootloader.

[GOD]

seriously, i used to flame in every single fucking thread, but now that i think of it, some ppl who want seroius opinions just get shit

HAY, no cussing kid.

[Haze]

Better listen to GOD he iz patrollin.

[fabz]

That fatfuck buddah don't like when u curse asianboy

[scimmyboy]

HAY, no cussing kid.

all u say is "fucking _____" in all ur posts

[Czar]

seriously, i used to flame in every single fucking thread, but now that i think of it, some ppl who want seroius opinions just get shit

MPGH has never been / never will be serious.
If you hope for this you are living in a dream world and may as well be shitting rainbows as well.

[LegendaryAbbo]

I gave him a serious opinion and he got butthurt...

I GUESS I JUST GOT LOST TRYING TO BE SOME ONE ELSE TRYING TO KILL THE PAIN

WILL YOU JUST LET ME BE MYSELF

Double post choob...

edit: probably shouldn't have said that

[scimmyboy]

MPGH has never been / never will be serious.
If you hope for this you are living in a dream world and may as well be shitting rainbows as well.

not sayin that it will be, but it gets worse and worse every year

[GOD]

all u say is "fucking _____" in all ur posts

YOU STILL A KID AND IM NOT

SO YAH.. DONT MAKE ME SLAP YO BRAH

[[MPGH]Dave84311]

How does that relate with:

;[WORD WRAP PROTECTION]------------------------------------------------------------------------------------------------------------------------
; Written By: Jeremy. A. Wildsmith
; Copyright jetaos, 2009, Jeremy. A. Wildsmith
; Main executable of the bootloader.
[BITS 16] ; Describe code is 16-bit, in real-mode, the processor runs in 16-bit mode
[ORG 0x7C00] ; Tells the assembler where the code will be in memory
; after being loaded
jmp _start
;
;GDT
gdt:
gdt_null:
dq 0 ;First entry in the gdt is null, and is reserved for the processor.
;dq define quadword
gdt_code:
;DWORD1
dw 0x0FFFF ; Base is 0x0, limit is 0xFFFF. GDT Size is 0xFFFF bytes long
dw 0x0 ; No use of the last WORD

;DWORD2
db 0x0 ; First bits in base address is 0
db 10011010b ; Ring0, Is data or code|Readable, non-conforming, code segment. Segment is present
db 11001111b ; Limit 0x0F, 32bit size, 4Kb multiplier
db 0x0 ; Last bits in base address is 0
gdt_data:
;DWORD1
dw 0x0FFFF ; Base is 0(overlaps code segment) Limit is 0xFFFF
dw 0x0 ; No use of the last WORD
;DWORD2
db 0x0 ; First bits in base address
db 10010010b ; Non-conforming, writable, data segment, data or code, expands down, and is present
db 11001111b ; 32 bit, 'BIG' , LIMIT 0x0F
db 0x0 ; Last bits in the base address
gdt_end:
;GDT Descriptor
gdt_desc:
dw gdt_end - gdt ; Size of GDT
dd gdt ; Address of GDT
 
 
_start:
xor ax, ax ; Zero ax
mov ds, ax ; Setup data segment register to 0
mov es, ax ; Setup extra segment register.
mov [data_iBootDriveSource], dl ; Get boot source drive from dl register, and store it.
mov ebp, data_sBootMessage
call func_PrintSystemMessage ; Print system message
call func_GetSysMemory ; Get amount of RAM in the system.
mov [data_sysBootInfo + SysBootInfo.sysMemKbMain], cx ; Store result.
mov [data_sysBootInfo + SysBootInfo.sysMemKb64blk], dx ; Store result.
mov ax, 0x1000
mov di, ax
mov [data_sysBootInfo + SysBootInfo.pMemEntries], ax ; We want to store the memMap at es:di
call func_GetSysMemoryMap ; Get system memory map.
mov [data_sysBootInfo + SysBootInfo.numEntries], bp ; Bp contains number of entries

;mov al, 24
;mov ax, 3
;mul ax
;add di, ax
mov BX, 0x2000 ; Dump to ds:BX
mov AL, 30 ; Read 30 sectors
mov CL, 2 ; Start reading at sector 2
mov DL, byte [data_iBootDriveSource] ; Read from a drive defined in variable data_iBootDriveSource
call func_DumpSectors ; Dump selected sectors in DS:BX
mov ebp, data_sBooting ; Load message into ebp register
call func_PrintSystemMessage ; Print system message
;Load GDT
cli ; Clear interrupts
lgdt [gdt_desc] ; Load gdt
;Move processor into protected mode.
mov eax, cr0 ; Load CR0 into EAX
or eax, 1 ; Set the first bit in eax
mov cr0, eax ; Load EAX into CR0
JMP 08h:clear_pipe ; Clear pipe, setup stack and pass control to kernel

hlt ; Jump to current location(endless loop)
 
func_GetSysMemory:
push EBX
push EAX
;Null out all general purpose registers, different BIOS store results in different registers.
xor edx, edx
xor ecx, ecx
xor eax, eax
mov ax, 0xE801 ;Service 
int 0x15
jc jmp_BootError ;If carryflag is set, then an error occured getting memory.
cmp ah, 0x86 ; Function not supported.
je jmp_BootError
cmp ah, 0x80
je jmp_BootError
jcxz func_GetSysMemory_useEax ;Does the bios use registers EAX and EBX?
;Otherwise use ECX and EDX

jmp func_GetSysMemory_end
func_GetSysMemory_useEax: ;Means use Eax and Ebx
mov cx, ax
mov dx, bx
func_GetSysMemory_end:
add cx, 1024
pop EAX
pop EBX
ret
;bp = entry count
;es:di = Base of buffer.
func_GetSysMemoryMap:
mov eax, 0x0000E820 ;Some bios requires low-word to be cleared.
xor ebx, ebx ;Start at beginning.
xor bp, bp
mov ecx, 24 ;Size of buffer = 24 bytes
mov edx, 'PAMS' ;SMAP

INT 0x15
jc jmp_BootError
jcxz .skipentry ;If bytes read is zero bytes long, skip it.
.checkentry: ;Otherwise check it
mov ecx, [es:di + MemoryMapEntry.length] ;Load lower-dword of len
test ecx, ecx ;Is it zero
jne .goodentry ;If not jump to good entry
mov ecx, [es:di + MemoryMapEntry.length + 4] ;Load upper-dword of len
jecxz .skipentry ;Jump if ECX is zero
.goodentry:
inc bp
add di, 24
cmp ebx, 0
je .end
.nextentry:
mov edx, 'PAMS'
mov ecx, 24
mov eax, 0x0000E820
INT 0x15
jcxz .skipentry
jmp .checkentry
.skipentry:
cmp ebx, 0
jne .nextentry
.end:
ret;
func_DumpSectors:
; Assumes:
; Data segment is setup
; BX = offset to data segment where sector is loaded.
; AL = Number of sectors to read
; CL = Disk sector
; DL = Drive
func_DumpSectors_ResetDrive:
mov AH, 0x0 ; Call service 0
INT 0x13 ; Reset drive
jc func_DumpSectors_ResetDrive ; If carry Flag is set(reset drive failed) attempt to reset again

mov AH, 0x02 ; Service 2
mov CH, 0 ; Cylinder 0
mov DH, 0 ; Disk head
INT 0x13 ; Make call to service
jc func_DumpSectors_ResetDrive ; If carry Flag is set(read drive failed) attempt to reset again
ret ; Return to caller
jmp_BootError:
mov ebp, data_sError ; Load error message into ebp register.
call func_PrintSystemMessage ; Print message
call func_WaitForKey ; Wait for key press

 
func_WaitForKey:
xor ah, ah ;Make call to service 0
INT 0x16 ;Execute interrupt 0x10
ret
func_moveCursorDown:
pushad ;Reserve Registers
;Get cursor position
mov AH, 0x03 ;Get cursor position, DH = row, DL = Col
mov BH, 0x00 ;Page #0 = graphics mode
INT 0x10 ;Execute video interrupt
;Set cursor position
inc DH ;Increment current row by one
xor DL, DL ;Reset del register(col number)
mov AH, 0x02 ;Set cursor position
mov BH, 0x00 ;Page #0 = graphics mode
INT 0x10 ;Execute video interrupt

popad ;Restore Registers
retn 
func_PrintSystemMessage:

;Assumes ebp is base address of system message
push ebp ; Preserve ebp register.
mov ebp, data_sSystemPrefix ; Load ebp with system label prefix message
call func_PrintString ; Call Print Function
pop ebp ; Restore ebp register. Which is the system message
call func_PrintString ; Call print function
ret ; Return to caller
func_PrintString:
;Assume ebp contains pointer to start of string.
;$ == linedown char.
push ebp ; reserve ebp register.
@func_PrintString_loop1:
mov AL, byte [EBP] ; set al register to the character placed at ebp 
cmp AL, 0 ; if AL == 0
jz func_PrintString_end1 ; return

cmp AL, '$' ; if AL != linedown Char
jne func_PrintString_print ; print character

call func_moveCursorDown ; else linedown 
jmp func_PrintString_loop1_continue ; and continue loop
func_PrintString_print: 
call func_PrintChar ; print char placed in al register
func_PrintString_loop1_continue: 
inc EBP ; Increase ebp to move to next character
jmp @func_PrintString_loop1 ; go to start of loop
 
func_PrintString_end1: ; The end of the functions, all registers are
; restored to their state when callee made the call.
pop ebp ; Restore ebp register
retn ; return to caller
retn
func_PrintChar:
;Assume AL register contains ascii character to print. 
;Preserve registers. 
push EAX
push EBX
mov AH, 0x0E ; Service is 0x0E
mov BH, 0x00 ; Page #0
mov BL, 0x04 ; Colors
int 0x10 ; Call interrupt
;Restore registers
pop EBX
pop EAX

retn ; return to caller
 
[BITS 32] ;32 bit instructions for when the processor is put into protected mode.
clear_pipe: ;Assumes far jump was made to this code, at segment 0x8, which will cear the instruction pipe
mov ax, 10h ; Set AX Register to 0x10(16d), which points to the data segment
mov ds, ax ; Setup data segment
mov ss, ax ; Setup stack segment
mov esp, 090000h ; Move stack pointer to 0x90000 offset from data segment

push data_sysBootInfo ; push pointer to bootinfo struct.
call 02000h ; Jmp to kernel
add esp, 4 ; Cleanup stack
hlt ; If for some weird reason the jump isn't made, or a return jump is made, hault the processor to prevent it from executing..
;data, Strings are null terminated.

data_sError db 'Boot Error.$',0

data_sBootMessage db 'BL(b3.v[1.0])$',0
data_sSystemPrefix db '[SYS] ',0
data_sBooting db 'BL loading kern$',0
data_iBootDriveSource db 0
data_sysBootInfo dq 0

struc MemoryMapEntry
.addrBase resq 1
.length resq 1
.type resd 1 
.acpi_null resd 1 
endstruc
struc SysBootInfo
.pMemEntries resd 1
.numEntries resw 1
.sysMemKbMain resd 1
.sysMemKb64blk resd 1
endstruc
;NULL Memory Region + Bootloader Signature
TIMES 510 - ($ - $$) db 0 ; Fill the rest of the program with 0. $ = cur loc, 
; $$ == start 
; Bootloader must be 512 bytes long(Size of one sector).
DW 0xAA55 ;Apply signature telling the bios this is a valid boot loader.
;[WORD WRAP PROTECTION]------------------------------------------------------------------------------------------------------------------------

You used a tutorial. Maybe even a base for the bootsector, then added features, fuck like I know. I know you used a tutorial. Tutorials aren't exactly DO IT YOURSELF.

Double post choob...

edit: probably shouldn't have said that

POST OBVIOUS, GET OBVIOUS RESPONSE. I DO WHAT I WANT. SMD

[Scruffy]

MPGH has never been / never will be serious.
If you hope for this you are living in a dream world and may as well be shitting rainbows as well.

[img]https://i222.photobucke*****m/albums/dd217/ladyblack1981/sohappy.jpg[/img]

[scimmyboy]

YOU STILL A KID AND IM NOT

SO YAH.. DONT MAKE ME SLAP YO BRAH

try it cuntmonkey

EDIT: LOL AT SCRUFFY'S PIC

[Haze]

YOU STILL A KID AND IM NOT

SO YAH.. DONT MAKE ME SLAP YO BRAH

Scimmyboy is a girl?

Shit nigga..

[scimmyboy]

Scimmyboy is a girl?

Shit nigga..

if i was, i wouldnt be here