; hello6.asm - Print "Hello, world" from hello6.com using BIOS
; To asemble/run using MASM 6.15
;
;   ml /c hello6.asm
;   link /t hello6.obj,,,,,

.model tiny
.code
org 100h
main:
  mov si, offset greeting  ; pointer to next character
L1:
  ; write the character pointed to by si
  mov ah, 0ah;             ; BIOS write character, does not move cursor
  mov bh, 0;               ; default video page
  mov cx, 1;               ; repeat count
  mov al, [si]             ; byte to write
  int 10h                  ; write it

  ; move the cursor forward
  mov ah, 3                ; BIOS get cursor row, column in DH, DL
  int 10h
  inc dl                   ; advance column
  mov ah, 2                ; BIOS set cursor
  int 10h

  ; advance to next byte to write
  inc si
  cmp si, greeting_end
  jnz L1                   ; repeat until last byte is written
  ret

greeting byte "Hello, world"
greeting_end = $ + 1
end main