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Index > OS Construction > How to enable keyboard input as well as mouse input and what

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l4m2



Joined: 15 Jan 2015
Posts: 648
l4m2
How to enable keyboard input as well as mouse input and what is INT E0?
Code:
;GDT,IDT set
;cli used as soon as I turn the power on
  mov cx,(outsv-outss)/2
  mov si,outss
outing:
  lodsw
  movzx dx,ah
  out dx,al
  loop outing

  mov eax,cr0             ; equivalent to "or cr0,1"
  inc ax                  ;   switches the CPU in protected mode-
  mov cr0,eax             ;   protected mode enable
  ;jmp far 8:dword start32
  dq $000800100200ea66
  
outss:
  dw $21ff,$a1ff
  dw $2011,$2120,$2104,$2101
  dw $a011,$a128,$a102,$a101
  ;dw $21fb,$a1ff
  dw $2100,$a100
outsv:
start32:
  sti
  jmp $
    

but only one interrupt occured whose id is E0[/code]
Post 12 Feb 2015, 02:57
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17624
Location: In your JS exploiting you and your system
revolution
Why did you hard code the "jmp far 8:start32"? fasm can assemble it for you.
Post 12 Feb 2015, 03:04
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l4m2



Joined: 15 Jan 2015
Posts: 648
l4m2
revolution wrote:
Why did you hard code the "jmp far 8:start32"? fasm can assemble it for you.

Error: invalid operand.
Post 12 Feb 2015, 03:05
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17624
Location: In your JS exploiting you and your system
revolution
Use this:
Code:
jmp pword 8:start32    
Post 12 Feb 2015, 03:25
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l4m2



Joined: 15 Jan 2015
Posts: 648
l4m2
revolution wrote:
Use this:
Code:
jmp pword 8:start32    

so what about these
db67 lodsb
db66 loop
Post 12 Feb 2015, 08:12
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revolution
When all else fails, read the source


Joined: 24 Aug 2004
Posts: 17624
Location: In your JS exploiting you and your system
revolution
lods supports address arguments, and loopd or loopw to ensure a particular size. These are described in the fasm.pdf manual.
Code:
lods byte[esi]
loopd    
Post 12 Feb 2015, 08:17
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l4m2



Joined: 15 Jan 2015
Posts: 648
l4m2
revolution wrote:
lods supports address arguments, and loopd or loopw to ensure a particular size. These are described in the fasm.pdf manual.
Code:
lods byte[esi]
loopd    

so that's my fault to misfound it:)
Post 12 Feb 2015, 08:20
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