diag/geodsp/geodsplib.inc

   1 ; -----------------------------------------------------------------------
   2 ;
   3 ;   Copyright 2010 Gene Cumm
   4 ;
   5 ;   Portions from diskstart.inc:
   6 ;   Copyright 1994-2009 H. Peter Anvin - All Rights Reserved
   7 ;   Copyright 2009-2010 Intel Corporation; author: H. Peter Anvin
   8 ;
   9 ;   This program is free software; you can redistribute it and/or modify
  10 ;   it under the terms of the GNU General Public License as published by
  11 ;   the Free Software Foundation, Inc., 51 Franklin St, Fifth Floor,
  12 ;   Boston MA 02110-1301, USA; either version 2 of the License, or
  13 ;   (at your option) any later version; incorporated herein by reference.
  14 ;
  15 ; -----------------------------------------------------------------------
  16
  17 ;
  18 ; geodsplib.inc
  19 ;
  20 ; Library file for geodsp*.asm
  21 ;
  22
  23                 ; ES:BX points to the buffer with address
  24                 ; DX,CX as they should be for INT13h,AH=02
  25                 ; For now assume C<256
  26 write_chs_lba:
  27                 pushad
  28                 mov si,s_atchs
  29                 call writestr_early
  30                 call write_chs
  31                 mov al,':'
  32                 call writechr
  33                 mov eax,[es:bx]
  34                 call writehex8
  35                 call crlf
  36                 popad
  37                 ret
  38
  39                 ; DX,CX as they should be for INT13h,AH=02
  40                 ; For now assume C<256
  41 write_chs:
  42                 pushad
  43                 mov al,ch
  44                 mov ah,cl
  45                 shr ah,6
  46                 call writehex4
  47                 mov al,','
  48                 call writechr
  49                 mov al,dh
  50                 call writehex2
  51                 mov al,','
  52                 call writechr
  53                 mov al,cl
  54                 and al,3Fh
  55                 call writehex2
  56                 popad
  57                 ret
  58
  59 write_edd_lba:
  60                 pushad
  61                 mov si,s_atchs
  62                 call writestr_early
  63                 call writehex8
  64                 mov al,':'
  65                 call writechr
  66                 mov eax,[es:bx]
  67                 call writehex8
  68                 call crlf
  69                 popad
  70                 ret
  71
  72
  73 crlf:
  74                 push si
  75                 mov si,s_crlf
  76                 call writestr_early
  77                 pop si
  78                 ret
  79
  80 writechr:
  81 writechr_early:
  82                 pushad
  83                 mov ah,0Eh              ; Write to screen as TTY
  84                 mov bx,0007h            ; Attribute
  85                 int 10h
  86                 popad
  87                 ret
  88
  89 %include "writehex.inc"
  90
  91 s_atchs:        db '@'
  92 s_chs:          db 'CHS'
  93 s_space:        db ' ', 0
  94 s_typespec:     db 'D='
  95 s_type:         db 'CHS', 0
  96 s_end:          db 0Dh, 0Ah, 'end'
  97 s_crlf:         db 0Dh, 0Ah, 0
  98
  99 ; This indicates the general format of the last few bytes in the boot sector
 100 BS_MAGIC_VER    equ 0x1b << 9