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Example INT 0x10 AH 0x0E in Bios

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ramosaurio:

--- Quote from: fredericopissarra on February 06, 2019, 10:10:55 AM ---Try this:


--- Code: ---bits 16

  jmp   0x7c0:_start  ; I prefeer to use smaller offsets!
_start:
  push cs
  pop  ds

  cld
  lea   si,[msg]
.loop:
  mov   ah,0x0e
  lodsb
  test  al,al
  jz    _exit
  mov   bx,7      ; page 0, white foreground.
  int   0x10      ; probably int 0x10 destroys AX...
  jmp   .loop

_exit:
  hlt
  jmp   _exit

msg:  db  `Hello!!!\0`

  times 510-($-$$) db 0
  dw  0xaa55

--- End code ---

--- End quote ---

Hello fredericopissarra i tried your code and in this case the program does nothing, only display the cursor blinking. I tried changing some things of your code, removing the halt instruction and changing the offset. But it gives the same result, the cursor blinking.

Anyway thanks for the answer.


Right now, i think that the best possible solution is try it in real hardware.

fredericopissarra:

--- Code: ---$ ls -l
total 4
-rw-r--r-- 1 frederico frederico 308 fev  6 19:48 boot.asm
$ nasm -f bin boot.asm -o boot.bin
$ qemu-system-i386 boot.bin
--- End code ---

Image attached...

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