Core:SYSLINUX: code clean

removes the unused variables in ldlinux.asm

diff --git a/core/ldlinux.asm b/core/ldlinux.asm
index 0f20724..5c44904 100644 (file)
--- a/core/ldlinux.asm
+++ b/core/ldlinux.asm
@@ -45,10 +45,7 @@ MAX_OPEN     equ (1 << MAX_OPEN_LG2)
 SECTOR_SHIFT   equ 9
 SECTOR_SIZE    equ (1 << SECTOR_SHIFT)
 
-DIRENT_SHIFT   equ 5
-DIRENT_SIZE    equ (1 << DIRENT_SHIFT)
 
-ROOT_DIR_WORD  equ 0x002F
 
 ;
 ; The following structure is used for "virtual kernels"; i.e. LILO-style
@@ -67,32 +64,7 @@ vk_append:   resb max_cmd_len+1      ; Command line
 vk_end:                equ $                   ; Should be <= vk_size
                endstruc
 
-;
-; File structure.  This holds the information for each currently open file.
-;
-               struc open_file_t
-file_sector    resd 1                  ; Sector pointer (0 = structure free)
-file_bytesleft resd 1                  ; Number of bytes left
-file_left      resd 1                  ; Number of sectors left
-               resd 1                  ; Unused
-               endstruc
 
-;
-; Structure for codepage files
-;
-               struc cp
-.magic         resd 2                  ; 8-byte magic number
-.reserved      resd 6                  ; Reserved for future use
-.uppercase     resb 256                ; Internal upper-case table
-.unicode       resw 256                ; Unicode matching table
-.unicode_alt   resw 256                ; Alternate Unicode matching table
-               endstruc
-
-%ifndef DEPEND
-%if (open_file_t_size & (open_file_t_size-1))
-%error "open_file_t is not a power of 2"
-%endif
-%endif
 
 ; ---------------------------------------------------------------------------
 ;   BEGIN CODE
@@ -107,25 +79,9 @@ trackbuf    resb trackbufsize       ; Track buffer goes here
                ; ends at 2800h
 
                section .bss16
-               alignb 4
-FAT            resd 1                  ; Location of (first) FAT
-RootDirArea    resd 1                  ; Location of root directory area
-RootDir                resd 1                  ; Location of root directory proper
-DataArea       resd 1                  ; Location of data area
-RootDirSize    resd 1                  ; Root dir size in sectors
-TotalSectors   resd 1                  ; Total number of sectors
-ClustSize      resd 1                  ; Bytes/cluster
-ClustMask      resd 1                  ; Sectors/cluster - 1
-CopySuper      resb 1                  ; Distinguish .bs versus .bss
-ClustShift     resb 1                  ; Shift count for sectors/cluster
-ClustByteShift resb 1                  ; Shift count for bytes/cluster
-
-;              global syslinux_cfg_buffer
-;syslinux_cfg_buffer resb 28         ; the syslinux config file name buffer, used by vfat_load_config
-
-               alignb open_file_t_size
+               alignb 16
                global Files
-Files          resb MAX_OPEN*open_file_t_size
+Files          resb MAX_OPEN*16  ; 16 == open_file_t_size
 
 ;
 ; Common bootstrap code for disk-based derivatives
@@ -172,8 +128,7 @@ Files               resb MAX_OPEN*open_file_t_size
 ;
 %include "ui.inc"
 
-               section .text16
-
+               
 ;
 ; close_dir:
 ;           Deallocates a directory structure (pointer in SI)
@@ -248,11 +203,6 @@ copyright_str   db ' Copyright (C) 1994-'
                db ' H. Peter Anvin et al', CR, LF, 0
 err_bootfailed db CR, LF, 'Boot failed: please change disks and press '
                db 'a key to continue.', CR, LF, 0
-syslinux_cfg1  db '/boot'                      ; /boot/syslinux/syslinux.cfg
-syslinux_cfg2  db '/syslinux'                  ; /syslinux/syslinux.cfg
-syslinux_cfg3  db '/'                          ; /syslinux.cfg
-config_name    db 'syslinux.cfg', 0            ; syslinux.cfg
-
 ;
 ; Config file keyword table
 ;