[BOOTSECTORS]

- fat.asm: remove trailing whitespace.
- fat32.asm: backport the fixes from fat32.S introduced a long time ago.
- fat32.S/faty.S: use .space 12, 0 instead of the long .byte array (generates the same code, but is better readable).
- isoboot/btrt: whitespace fix only.

svn path=/trunk/; revision=70432

reactos/boot/freeldr/bootsect/fat32.S

@@ -62,9 +62,9 @@ FSInfoSector:
 BackupBootSector:
     .word    6
 Reserved1:
-    .byte 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
-
+    .space 12, 0
 // End FAT32 Inserted Info
+
 BootDrive:
     .byte 0
 Reserved:

reactos/boot/freeldr/bootsect/fat32.asm

@@ -122,6 +122,7 @@ LoadExtraBootCode:
 ; EAX has logical sector number to read
 ; CX has number of sectors to read
 ReadSectors:
+        push es
         cmp  eax,DWORD [BiosCHSDriveSize]       ; Check if they are reading a sector outside CHS range
         jae  ReadSectorsLBA                     ; Yes - go to the LBA routine
                                                 ; If at all possible we want to use LBA routines because
@@ -181,6 +182,7 @@ ReadSectorsSetupDiskAddressPacket:
         sub  cx,[LBASectorsRead]
         jnz  ReadSectorsLBA                     ; Read next sector
 
+        pop es
         ret
 
 LBASectorsRead:
@@ -340,7 +342,6 @@ FindFile:
         jmp  StartSearch
 
 FoundFile:
-
                                         ; Display "Loading FreeLoader..." message
         mov  si,msgLoading              ; Loading message
         call PutChars                   ; Display it
@@ -437,21 +438,21 @@ GetActiveFatOffset:
 
 LoadFatSector:
         push  ecx
+
+        mov   bx, 9000h                         ; We will load it to [9000:0000h]
+        mov   es, bx
+
         ; EAX holds logical FAT sector number
         ; Check if we have already loaded it
         cmp  eax,DWORD [FatSectorInCache]
         je   LoadFatSectorAlreadyLoaded
 
         mov  DWORD [FatSectorInCache],eax
-        mov  bx,9000h
-        mov  es,bx
-        xor  bx,bx                              ; We will load it to [9000:0000h]
+        xor  bx,bx
         mov  cx,1
         call ReadSectors
 
 LoadFatSectorAlreadyLoaded:
-        mov  bx,9000h
-        mov  es,bx
         pop  ecx
         mov  eax,DWORD [es:ecx]                 ; Get FAT entry
         and  eax,0fffffffh                      ; Mask off reserved bits

reactos/boot/freeldr/bootsect/faty.S

@@ -112,7 +112,7 @@ FSInfoSector:
 BackupBootSector:
     .word    6
 Reserved1:
-    .byte 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0
+    .space 12, 0
 #endif // FAT32
 
 BootDrive: