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    revision 1132 by niro, Sat Sep 1 22:45:15 2007 UTC revision 1133 by niro, Thu Aug 19 09:50:43 2010 UTC
    # Line 1  Line 1 
     ;; $Id: ui.inc,v 1.1 2007-09-01 22:44:05 niro Exp $  
    1  ;; -----------------------------------------------------------------------  ;; -----------------------------------------------------------------------
    2  ;;    ;;
    3  ;;   Copyright 1994-2005 H. Peter Anvin - All Rights Reserved  ;;   Copyright 1994-2009 H. Peter Anvin - All Rights Reserved
    4    ;;   Copyright 2009-2010 Intel Corporation; author: H. Peter Anvin
    5  ;;  ;;
    6  ;;   This program is free software; you can redistribute it and/or modify  ;;   This program is free software; you can redistribute it and/or modify
    7  ;;   it under the terms of the GNU General Public License as published by  ;;   it under the terms of the GNU General Public License as published by
    # Line 14  Line 14 
    14  ;  ;
    15  ; This file should be entered with the config file open (for getc)  ; This file should be entered with the config file open (for getc)
    16  ;  ;
    17    load_config_file:
    18   call parse_config ; Parse configuration file   call parse_config ; Parse configuration file
    19  no_config_file:  no_config_file:
    20    
    21     call adv_init
    22    ;
    23    ; Check for an ADV boot-once entry
    24    ;
    25     mov dl,ADV_BOOTONCE
    26     call adv_get
    27     jcxz .no_bootonce
    28    
    29    .have_bootone:
    30     ; We apparently have a boot-once set; clear it and
    31     ; then execute the boot-once...
    32    
    33     ; Save the boot-once data; SI = data, CX = length
    34     mov di,command_line
    35     rep movsb
    36     xor ax,ax
    37     stosb
    38    
    39     ; Clear the boot-once data from the ADV
    40     xor cx,cx ; Set to zero = delete
    41     call adv_set
    42     jc .err
    43     call adv_write
    44    .err: jmp load_kernel
    45    
    46    .no_bootonce:
    47    
    48  ;  ;
    49  ; Check whether or not we are supposed to display the boot prompt.  ; Check whether or not we are supposed to display the boot prompt.
    50  ;  ;
    51  check_for_key:  check_for_key:
      cmp word [ForcePrompt],0 ; Force prompt?  
      jnz enter_command  
    52   test byte [KbdFlags],5Bh ; Shift Alt Caps Scroll   test byte [KbdFlags],5Bh ; Shift Alt Caps Scroll
    53   jz auto_boot ; If neither, default boot   jnz enter_command
    54     cmp word [ForcePrompt],0 ; Force prompt?
    55     jz auto_boot
    56     cmp word [DefaultLevel],1 ; Active UI statement?
    57     ja auto_boot
    58    
    59  enter_command:  enter_command:
    60   cmp word [NoEscape],0 ; If NOESCAPE, no prompt,   cmp word [NoEscape],0 ; If NOESCAPE, no prompt,
    61   jne auto_boot ; always run default cmd   jne auto_boot ; always run default cmd
    62    
    63   mov si,boot_prompt   mov si,boot_prompt
    64   call cwritestr   call writestr
    65    
    66   mov byte [FuncFlag],0 ; <Ctrl-F> not pressed   mov byte [FuncFlag],0 ; <Ctrl-F> not pressed
    67   mov di,command_line   mov di,command_line
    # Line 71  got_ascii: cmp al,7Fh ; <DEL> == <BS> Line 102  got_ascii: cmp al,7Fh ; <DEL> == <BS>
    102   cmp di,command_line ; Space must not be first   cmp di,command_line ; Space must not be first
    103   je short get_char   je short get_char
    104  enter_char: test byte [FuncFlag],1  enter_char: test byte [FuncFlag],1
    105   jz .not_ctrl_f   jnz ctrl_f ; Keystroke after <Ctrl-F>
    106   mov byte [FuncFlag],0   cmp di,max_cmd_len+command_line ; Check there's space
      cmp al,'0'  
      jb .not_ctrl_f  
      je ctrl_f_0  
      cmp al,'9'  
      jbe ctrl_f  
     .not_ctrl_f: cmp di,max_cmd_len+command_line ; Check there's space  
    107   jnb short get_char   jnb short get_char
    108   stosb ; Save it   stosb ; Save it
    109   call writechr ; Echo to screen   call writechr ; Echo to screen
    110   jmp short get_char   jmp short get_char
    111  not_ascii: mov byte [FuncFlag],0  not_ascii:
    112   cmp al,0Dh ; Enter   cmp al,0Dh ; Enter
    113   je command_done   je command_done
    114     cmp al,09h ; Tab
    115     je display_labels
    116   cmp al,'F' & 1Fh ; <Ctrl-F>   cmp al,'F' & 1Fh ; <Ctrl-F>
    117   je set_func_flag   je set_func_flag
    118    %if IS_PXELINUX
    119     cmp al,'N' & 1Fh ; <Ctrl-N>
    120     je show_network_info
    121    %endif
    122   cmp al,'U' & 1Fh ; <Ctrl-U>   cmp al,'U' & 1Fh ; <Ctrl-U>
    123   je kill_command ; Kill input line   je kill_command ; Kill input line
    124   cmp al,'V' & 1Fh ; <Ctrl-V>   cmp al,'V' & 1Fh ; <Ctrl-V>
    # Line 100  backspace: cmp di,command_line ; Make s Line 131  backspace: cmp di,command_line ; Make s
    131   je get_char ; to erase   je get_char ; to erase
    132   dec di ; Unstore one character   dec di ; Unstore one character
    133   mov si,wipe_char ; and erase it from the screen   mov si,wipe_char ; and erase it from the screen
    134   call cwritestr   call writestr
    135   jmp short get_char_2  get_char_2:
    136     jmp short get_char
    137    
    138  kill_command:  kill_command:
    139   call crlf   call crlf
    # Line 113  force_text_mode: Line 145  force_text_mode:
    145    
    146  set_func_flag:  set_func_flag:
    147   mov byte [FuncFlag],1   mov byte [FuncFlag],1
    148  get_char_2:   jmp short get_char_2
    149   jmp short get_char  
    150    display_labels:
    151     cmp word [NoComplete],0 ; Label completion enabled?
    152     jne get_char_2
    153     push di ; Save pointer
    154     mov cx,di
    155     sub cx,command_line
    156     call crlf
    157     mov esi,[HighMemSize] ; Start from top of memory
    158    .scan:
    159     cmp esi,[VKernelEnd]
    160     jbe .not_vk
    161    
    162  ctrl_f_0: add al,10 ; <Ctrl-F>0 == F10   push cx ; save command line size
    163  ctrl_f: sub al,'1'  
    164     mov edi,VKernelBuf
    165     call rllunpack
    166     ; ESI updated on return
    167    
    168     sub di,cx ; Return to beginning of buf
    169     pop cx ; restore command line size
    170     push si ; save SI
    171     cmp cx,0
    172     jz .print
    173     push di
    174     push cx
    175     mov si,command_line
    176     es repe cmpsb
    177     pop cx
    178     pop di
    179     jne .next
    180    .print:
    181     mov al,' '
    182     call writechr
    183    
    184     mov si,di
    185     call writestr
    186    .next:
    187     pop si ; restore SI
    188     jmp .scan
    189    .not_vk:
    190     call crlf
    191     jmp fk_wrcmd
    192    
    193    ctrl_f:
    194   xor ah,ah   xor ah,ah
    195   jmp short show_help   mov [FuncFlag],ah
    196     cmp al,'0'
    197     jb get_char_2
    198     je .zero ; <Ctrl-F>0 = F10
    199     or al,20h ; Lower case
    200     cmp al,'9'
    201     jna .digit
    202     cmp al,'a' ; F10-F12 = <Ctrl-F>A, B, C
    203     jb get_char_2
    204     cmp al,'c'
    205     ja get_char_2
    206     sub al,'a'-10
    207     jmp show_help
    208    .zero:
    209     mov al,10
    210     jmp show_help
    211    .digit:
    212     sub al,'1'
    213     jmp show_help
    214    
    215  func_key:  func_key:
    216   ; AL = 0 if we get here   ; AL = 0 if we get here
    217   xchg al,ah   xchg al,ah
    218   cmp al,68 ; F10   cmp al,44h ; F10
    219   ja short get_char_2   ja .f11_f12
    220   sub al,59 ; F1   sub al,3Bh ; F1
    221   jb short get_char_2   jb get_char_2
    222  show_help: ; AX = func key # (0 = F1, 9 = F10)   jmp show_help
    223    .f11_f12:
    224     cmp al,85h ; F11
    225     jb get_char_2
    226     cmp al,86h ; F12
    227     ja get_char_2
    228     sub al,85h-10
    229    
    230    show_help: ; AX = func key # (0 = F1, 9 = F10, 11 = F12)
    231   push di ; Save end-of-cmdline pointer   push di ; Save end-of-cmdline pointer
    232   shl ax,FILENAME_MAX_LG2 ; Convert to pointer   shl ax,FILENAME_MAX_LG2 ; Convert to pointer
    233   add ax,FKeyName   add ax,FKeyName
    234   xchg di,ax   xchg di,ax
    235   cmp byte [di+NULLOFFSET],NULLFILE   cmp byte [di+NULLOFFSET],NULLFILE
    236   je short fk_nofile ; Undefined F-key   je short fk_nofile ; Undefined F-key
    237   call searchdir   call open
    238   jz short fk_nofile ; File not found   jz short fk_nofile ; File not found
      push si  
    239   call crlf   call crlf
      pop si  
    240   call get_msg_file   call get_msg_file
    241   jmp short fk_wrcmd   jmp short fk_wrcmd
    242    
    243  print_version:  print_version:
    244   push di ; Command line write pointer   push di ; Command line write pointer
    245   mov si,syslinux_banner   mov si,syslinux_banner
    246   call cwritestr   call writestr
    247  %ifdef HAVE_BIOSNAME  %ifdef HAVE_BIOSNAME
    248   mov si,[BIOSName]   mov si,[BIOSName]
    249   call cwritestr   call writestr
    250  %endif  %endif
    251   mov si,copyright_str   mov si,copyright_str
    252   call cwritestr   call writestr
    253    
    254   ; ... fall through ...   ; ... fall through ...
    255    
    # Line 162  print_version: Line 259  print_version:
    259   ; of DI (the command line write pointer) is on the stack.   ; of DI (the command line write pointer) is on the stack.
    260  fk_wrcmd:  fk_wrcmd:
    261   mov si,boot_prompt   mov si,boot_prompt
    262   call cwritestr   call writestr
    263   pop di ; Command line write pointer   pop di ; Command line write pointer
    264   push di   push di
    265   mov byte [di],0 ; Null-terminate command line   mov byte [di],0 ; Null-terminate command line
    266   mov si,command_line   mov si,command_line
    267   call cwritestr ; Write command line so far   call writestr ; Write command line so far
    268  fk_nofile: pop di  fk_nofile: pop di
    269   jmp short get_char_2   jmp get_char
    270    
    271    ;
    272    ; Show network info (in the form of the ipappend strings)
    273    ;
    274    %if IS_PXELINUX
    275    show_network_info:
    276     push di ; Command line write pointer
    277     call crlf
    278     mov si,IPAppends ; See comboot.doc
    279     mov cx,numIPAppends
    280    .loop:
    281     lodsw
    282     push si
    283     mov si,ax
    284     call writestr
    285     call crlf
    286     pop si
    287     loop .loop
    288     jmp fk_wrcmd
    289    %endif
    290    
    291  ;  ;
    292  ; Jump here to run the default command line  ; Jump here to run the default command line
    293  ;  ;
    294  auto_boot:  auto_boot:
    295     cmp word [DefaultLevel],0 ; No UI or DEFAULT?
    296     jne .have_default
    297     mov si,no_default_msg
    298     call writestr
    299     cmp word [NoEscape],0 ; NOESCAPE but no DEFAULT?
    300     jne kaboom ; If so, we're stuck!
    301     jmp enter_command
    302    
    303    .have_default:
    304   mov si,default_cmd   mov si,default_cmd
    305   mov di,command_line   mov di,command_line
    306   mov cx,(max_cmd_len+4) >> 2   mov cx,(max_cmd_len+4) >> 2
    307   rep movsd   rep movsd
    308   jmp short load_kernel   jmp short load_kernel
    309    
    310     section .data
    311    no_default_msg db 'No DEFAULT or UI configuration directive found!'
    312     db CR, LF, 0
    313    
    314     section .text
    315    
    316  ;  ;
    317  ; Jump here when the command line is completed  ; Jump here when the command line is completed
    318  ;  ;
    # Line 198  load_kernel: ; Load the kernel now Line 330  load_kernel: ; Load the kernel now
    330   mov si,command_line   mov si,command_line
    331                  mov di,KernelName                  mov di,KernelName
    332                  push si                  push si
                     push di  
    333   call mangle_name   call mangle_name
      pop di  
    334                  pop si                  pop si
    335  ;  ;
    336  ; Fast-forward to first option (we start over from the beginning, since  ; Fast-forward to first option (we start over from the beginning, since
    # Line 230  clin_opt_ok: Line 360  clin_opt_ok:
    360  ; Now check if it is a "virtual kernel"  ; Now check if it is a "virtual kernel"
    361  ;  ;
    362  vk_check:  vk_check:
    363   xor si,si ; Beginning of vk_seg   mov esi,[HighMemSize] ; Start from top of memory
    364  .scan:  .scan:
    365   cmp si,[VKernelBytes]   cmp esi,[VKernelEnd]
    366   jae .not_vk   jbe .not_vk
    367    
    368   push ds   mov edi,VKernelBuf
      push word vk_seg  
      pop ds  
       
      mov di,VKernelBuf  
    369   call rllunpack   call rllunpack
    370   pop ds   ; ESI updated on return
      ; SI updated on return  
    371    
    372   sub di,cx ; Return to beginning of buf   sub di,cx ; Return to beginning of buf
    373   push si   push si
    374   mov si,KernelName   mov si,command_line
    375   mov cx,FILENAME_MAX  .loop:
    376   es repe cmpsb   lodsb
    377     cmp al,' '
    378     jbe .done
    379     scasb
    380     je .loop
    381    .nomatch:
    382   pop si   pop si
      je .found  
    383   jmp .scan   jmp .scan
    384    .done:
    385     cmp byte [di],0 ; Must match end of string
    386     jne .nomatch
    387     pop si
    388    
    389  ;  ;
    390  ; We *are* using a "virtual kernel"  ; We *are* using a "virtual kernel"
    # Line 267  vk_check: Line 400  vk_check:
    400   mov [CmdLinePtr],di ; Where to add rest of cmd   mov [CmdLinePtr],di ; Where to add rest of cmd
    401   pop es   pop es
    402   mov di,KernelName   mov di,KernelName
    403   push di   push di
    404   mov si,VKernelBuf+vk_rname   mov si,VKernelBuf+vk_rname
    405   mov cx,FILENAME_MAX ; We need ECX == CX later   mov cx,FILENAME_MAX ; We need ECX == CX later
    406   rep movsb   rep movsb
    # Line 278  vk_check: Line 411  vk_check:
    411  %endif  %endif
    412   xor bx,bx ; Try only one version   xor bx,bx ; Try only one version
    413    
    414  %if IS_PXELINUX || IS_ISOLINUX   mov al,[VKernelBuf+vk_type]
    415     mov [KernelType],al
    416    
    417    %if HAS_LOCALBOOT
    418   ; Is this a "localboot" pseudo-kernel?   ; Is this a "localboot" pseudo-kernel?
    419  %if IS_PXELINUX   cmp al,VK_LOCALBOOT ; al == KernelType
    420   cmp byte [VKernelBuf+vk_rname+4], 0   mov ax,[VKernelBuf+vk_rname] ; Possible localboot type
    421  %else   je local_boot
      cmp byte [VKernelBuf+vk_rname], 0  
    422  %endif  %endif
      jne get_kernel ; No, it's real, go get it  
       
      mov ax, [VKernelBuf+vk_rname+1]  
      jmp local_boot  
     %else  
    423   jmp get_kernel   jmp get_kernel
     %endif  
    424    
    425  .not_vk:  .not_vk:
       
    426  ;  ;
    427  ; Not a "virtual kernel" - check that's OK and construct the command line  ; Not a "virtual kernel" - check that's OK and construct the command line
    428  ;  ;
    # Line 313  vk_check: Line 441  vk_check:
    441                  pop di                  pop di
    442                  pop si                  pop si
    443                  pop es                  pop es
    444    
    445     mov [KernelType], cl ; CL == 0 here
    446    
    447  ;  ;
    448  ; Find the kernel on disk  ; Find the kernel on disk
    449  ;  ;
    450  get_kernel:     mov byte [KernelName+FILENAME_MAX],0 ; Zero-terminate filename/extension  get_kernel:     mov byte [KernelName+FILENAME_MAX],0 ; Zero-terminate filename/extension
     %if IS_SYSLINUX || IS_MDSLINUX ; SYSLINUX has to deal with DOS mangled names...  
      mov eax,[KernelName+8] ; Save initial extension  
      mov [exten_table_end],eax ; Last case == initial ext.  
     %else  
    451   mov di,KernelName+4*IS_PXELINUX   mov di,KernelName+4*IS_PXELINUX
    452     cmp byte [di],' '
    453     jbe bad_kernel ; Missing kernel name
    454   xor al,al   xor al,al
    455   mov cx,FILENAME_MAX-5 ; Need 4 chars + null   mov cx,FILENAME_MAX-5 ; Need 4 chars + null
    456   repne scasb ; Scan for final null   repne scasb ; Scan for final null
    457   jne .no_skip   jne .no_skip
    458   dec di ; Point to final null   dec di ; Point to final null
    459  .no_skip: mov [KernelExtPtr],di  .no_skip: mov [KernelExtPtr],di
     %endif  
    460   mov bx,exten_table   mov bx,exten_table
    461  .search_loop: push bx  .search_loop: push bx
    462                  mov di,KernelName       ; Search on disk                  mov di,KernelName ; Search on disk
    463                  call searchdir                  call searchdir
    464   pop bx   pop bx
    465                  jnz kernel_good                  jnz kernel_good
    466   mov eax,[bx] ; Try a different extension   mov eax,[bx] ; Try a different extension
     %if IS_SYSLINUX || IS_MDSLINUX  
      mov [KernelName+8],eax  
     %else  
    467   mov si,[KernelExtPtr]   mov si,[KernelExtPtr]
    468   mov [si],eax   mov [si],eax
    469   mov byte [si+4],0   mov byte [si+4],0
     %endif  
    470   add bx,byte 4   add bx,byte 4
    471   cmp bx,exten_table_end   cmp bx,exten_table_end
    472   jna .search_loop ; allow == case (final case)   jna .search_loop ; allow == case (final case)
    # Line 362  bad_kernel: Line 486  bad_kernel:
    486   push di   push di
    487                  call unmangle_name              ; Get human form                  call unmangle_name              ; Get human form
    488   mov si,err_notfound ; Complain about missing kernel   mov si,err_notfound ; Complain about missing kernel
    489   call cwritestr   call writestr
    490   pop si ; KernelCName   pop si ; KernelCName
    491                  call cwritestr                  call writestr
    492                  mov si,crlf_msg                  mov si,crlf_msg
    493                  jmp abort_load                  ; Ask user for clue                  jmp abort_load                  ; Ask user for clue
    494    
    495  ;  ;
    496  ; on_error: bad kernel, but we have onerror set  ; on_error: bad kernel, but we have onerror set; CX = OnerrorLen
    497  ;  ;
    498  on_error:  on_error:
    499   mov si,Onerror   mov si,Onerror
    # Line 414  kernel_corrupt: mov si,err_notkernel Line 538  kernel_corrupt: mov si,err_notkernel
    538  ;  ;
    539  getchar_timeout:  getchar_timeout:
    540   call vgashowcursor   call vgashowcursor
    541   RESET_IDLE   call reset_idle
    542    
    543  .loop:  .loop:
    544   push word [BIOS_timer]   push word [BIOS_timer]
    545   call pollchar   call pollchar
    546   jnz .got_char   jnz .got_char
    547     call do_idle
    548   pop ax   pop ax
    549   cmp ax,[BIOS_timer] ; Has the timer advanced?   cmp ax,[BIOS_timer] ; Has the timer advanced?
    550   je .loop   je .loop
    551   DO_IDLE  
       
    552   dec dword [ThisKbdTo]   dec dword [ThisKbdTo]
    553   jz .timeout   jz .timeout
    554   dec dword [ThisTotalTo]   dec dword [ThisTotalTo]
    # Line 452  getchar_timeout: Line 576  getchar_timeout:
    576  ; that decision on the file extension.  The following extensions are  ; that decision on the file extension.  The following extensions are
    577  ; recognized; case insensitive:  ; recognized; case insensitive:
    578  ;  ;
    579  ; .com - COMBOOT image  ; .com - COMBOOT image
    580  ; .cbt - COMBOOT image  ; .cbt - COMBOOT image
    581  ; .c32  - COM32 image  ; .c32  - COM32 image
    582  ; .bs - Boot sector  ; .bs - Boot sector
    # Line 475  kernel_good_saved: Line 599  kernel_good_saved:
    599   ; COMBOOT function INT 22h, AX=0016h.   ; COMBOOT function INT 22h, AX=0016h.
    600   mov si,[Kernel_SI]   mov si,[Kernel_SI]
    601   mov eax,[Kernel_EAX]   mov eax,[Kernel_EAX]
      mov dx,[Kernel_EAX+2]  
    602    
    603  kernel_good:  kernel_good:
    604   pusha   pushad
    605     ;
    606     ; Common initialization for all kernel types
    607     ;
    608     xor ax,ax
    609     mov [InitRDPtr],ax
    610     mov [QuietBoot],al
    611    %if IS_PXELINUX
    612     mov [KeepPXE],al
    613    %endif
    614    
    615   mov si,KernelName   mov si,KernelName
    616   mov di,KernelCName   mov di,KernelCName
    617   call unmangle_name   call unmangle_name
    618   sub di,KernelCName   sub di,KernelCName
    619   mov [KernelCNameLen],di   mov [KernelCNameLen],di
    620   popa  
    621     ; Default memory limit, can be overridden by image loaders
    622  %if IS_SYSLINUX || IS_MDSLINUX   mov eax,[HighMemRsvd]
    623   mov ecx,[KernelName+7]   mov [MyHighMemSize],eax
    624   mov cl,'.'  
    625  %else   popad
    626    
    627   push di   push di
    628   push ax   push ax
    629   mov di,KernelName+4*IS_PXELINUX   mov di,KernelName+4*IS_PXELINUX
    # Line 501  kernel_good: Line 635  kernel_good:
    635  .one_step: mov ecx,[di-4] ; 4 bytes before end  .one_step: mov ecx,[di-4] ; 4 bytes before end
    636   pop ax   pop ax
    637   pop di   pop di
     %endif  
    638    
    639  ;  ;
    640  ; At this point, DX:AX contains the size of the kernel, and SI contains  ; At this point, EAX contains the size of the kernel, SI contains
    641  ; the file handle/cluster pointer.  ; the file handle/cluster pointer, and ECX contains the extension (if any.)
    642  ;  ;
    643   or ecx,20202000h ; Force lower case   movzx di,byte [KernelType]
    644     add di,di
    645     jmp [kerneltype_table+di]
    646    
    647    is_unknown_filetype:
    648     or ecx,20202000h ; Force lower case (except dot)
    649    
    650   cmp ecx,'.com'   cmp ecx,'.com'
    651   je is_comboot_image   je is_comboot_image
    # Line 523  kernel_good: Line 661  kernel_good:
    661   je is_bss_sector   je is_bss_sector
    662   cmp ecx,'.bin'   cmp ecx,'.bin'
    663   je is_bootsector   je is_bootsector
     %if IS_SYSLINUX || IS_MDSLINUX  
      cmp ecx,'.bs '  
      je is_bootsector  
      cmp ecx,'.0  '  
      je is_bootsector  
     %else  
    664   shr ecx,8   shr ecx,8
    665   cmp ecx,'.bs'   cmp ecx,'.bs'
    666   je is_bootsector   je is_bootsector
    667   shr ecx,8   shr ecx,8
    668   cmp cx,'.0'   cmp cx,'.0'
    669   je is_bootsector   je is_bootsector
    670  %endif  
    671   ; Otherwise Linux kernel   ; Otherwise Linux kernel
    672     jmp is_linux_kernel
    673    
    674    is_config_file:
    675     pusha
    676     mov si,KernelCName ; Save the config file name, for posterity
    677     mov di,ConfigName
    678     call strcpy
    679     popa
    680     call openfd
    681     call reset_config
    682     jmp load_config_file
    683    
    684    ; This is an image type we can't deal with
    685    is_bad_image:
    686     mov si,err_badimage
    687     call writestr
    688     jmp enter_command
    689    
    690    %if IS_SYSLINUX
    691     ; ok
    692    %else
    693    is_bss_sector equ is_bad_image
    694    %endif
    695    %if IS_ISOLINUX
    696     ; ok
    697    %else
    698    is_disk_image equ is_bad_image
    699    %endif
    700    
    701     section .data
    702    boot_prompt db 'boot: ', 0
    703    wipe_char db BS, ' ', BS, 0
    704    err_badimage db 'Invalid image type for this media type!', CR, LF, 0
    705    err_notfound db 'Could not find kernel image: ',0
    706    err_notkernel db CR, LF, 'Invalid or corrupt kernel image.', CR, LF, 0
    707    
    708    
    709     alignz 2
    710    kerneltype_table:
    711     dw is_unknown_filetype ; VK_KERNEL
    712     dw is_linux_kernel ; VK_LINUX
    713     dw is_bootsector ; VK_BOOT
    714     dw is_bss_sector ; VK_BSS
    715     dw is_bootsector ; VK_PXE
    716     dw is_disk_image ; VK_FDIMAGE
    717     dw is_comboot_image ; VK_COMBOOT
    718     dw is_com32_image ; VK_COM32
    719     dw is_config_file ; VK_CONFIG
    720    
    721   section .bss   section .bss
    722   alignb 4   alignb 4
    # Line 546  KernelExtPtr resw 1 ; During search, f Line 726  KernelExtPtr resw 1 ; During search, f
    726  CmdOptPtr       resw 1 ; Pointer to first option on cmd line  CmdOptPtr       resw 1 ; Pointer to first option on cmd line
    727  KbdFlags resb 1 ; Check for keyboard escapes  KbdFlags resb 1 ; Check for keyboard escapes
    728  FuncFlag resb 1 ; Escape sequences received from keyboard  FuncFlag resb 1 ; Escape sequences received from keyboard
    729    KernelType resb 1 ; Kernel type, from vkernel, if known
    730    
    731   section .text   section .text
    732    ;
    733    ; Linux kernel loading code is common.
    734    ;
    735    %include "runkernel.inc"
    736    
    737    ;
    738    ; COMBOOT-loading code
    739    ;
    740    %include "comboot.inc"
    741    %include "com32.inc"
    742    %include "cmdline.inc"
    743    
    744    ;
    745    ; Boot sector loading code
    746    ;
    747    %include "bootsect.inc"
    748    
    749    ;
    750    ; Abort loading code
    751    ;
    752    %include "abort.inc"
    753    
    754    ;
    755    ; Hardware cleanup common code
    756    ;
    757    %include "cleanup.inc"
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