Commit graph

8 commits

Author SHA1 Message Date
Brian Palmer f152732d04 Lot's of fixes for the FAT12/16 boot sector code.
svn path=/trunk/; revision=4737
2003-05-21 20:28:13 +00:00
Brian Palmer 0f2ad47bfb Fix for disk error while Loading FreeLoader... discovered by Dave Albert
In ReadSectorsCHS it was pop'ing values off the stack that hadn't been push'ed

svn path=/trunk/; revision=3417
2002-08-28 04:46:17 +00:00
Brian Palmer 367cfa7085 Changes in v1.7.4 (8/20/2002) (brianp)
- Boot sector code now reports to freeldr.sys the partition
  that it was installed on. This is specified by a byte
  value in the boot sector code. By default the boot partition
  is set to zero which indicates the active (bootable)
  partition, unless the installer sets the value to non-zero.
  If FreeLoader is installed on a partition other than
  the active (bootable) partition then the installer must
  set this byte to that partition number. Otherwise
  FreeLoader will not be able to find freeldr.ini.
- i386trap.S: Added debug macros BREAKPOINT(),
  INSTRUCTION_BREAKPOINTX(), MEMORY_READWRITE_BREAKPOINTX(), &
  MEMORY_WRITE_BREAKPOINTX().
- partition.c (DiskGetPartitionEntry): Add the relative offset
  of the extended partition to the partitions start sector.
- ext2.c (Ext2ReadBlockPointerList, Ext2CopyIndirectBlockPointers,
  Ext2CopyDoubleIndirectBlockPointers, Ext2CopyTripleIndirectBlockPointers):
  Rewrote the block pointer functions so they actually work.
- ini_init.c (IniFileInitialize, IniOpenIniFile): Looks for freeldr.ini
  on both the active (bootable) partition and the partition
  passed in from the boot sector code.
- meminit.c (MmInitializeMemoryManager, MmFixupSystemMemoryMap,
  MmGetEndAddressOfAnyMemory, MmGetAddressablePageCountIncludingHoles,
  MmInitPageLookupTable): Fixed bug that would cause FreeLoader to
  have an off-by-one error when accessing the last entry in the
  page lookup table on systems with 4GB of memory (or memory mapped
  at the end of the address space).

svn path=/trunk/; revision=3372
2002-08-21 03:32:49 +00:00
Brian Palmer e5423f156b Compared the output of fat.asm from nasm v0.98 and nasm v0.98.32.
Modified fat.asm to produce the same output under both versions.

svn path=/trunk/; revision=2973
2002-05-22 22:15:28 +00:00
Brian Palmer c44d02099d Added LBA support to FAT12/16 boot sector
Now the FAT12/16 boot sector properly works on all FAT12/16 partition types (1, 4, 6, 0xe)
Fixed a few small bugs

svn path=/trunk/; revision=2852
2002-04-16 06:11:08 +00:00
Brian Palmer 198a544138 Removed code to save screen contents before entering freeldr
Moved all architecture specific code to the arch & arch/i386 directories
Renamed asmcode.* to arch.*

svn path=/trunk/; revision=2545
2002-01-23 19:57:42 +00:00
Brian Palmer 3662f1f720 BIOS Int 13h Extensions Support
New .ini file format (sort of) - changed some parameter names, etc.
More efficient .ini file parsing code
More efficient use of memory, smaller image file
Total rewrite of file system code (the old stuff sucked)
VFAT Long File Names now supported!
ReactOS is the only boot type supported currently, disabled all others (temporarily)

svn path=/trunk/; revision=2372
2001-11-15 07:48:33 +00:00
Brian Palmer 17dc9b5270 Full memory management support (memory.c & memory.h & mem.S)
Preliminary debug code (debug.c & debug.h)
Reworked .ini file code (parseini.c & parseini.h)
Size optimizations (fat.asm & fat32.asm)
FAT12/16 boot sector now fully understands the FAT (fat.asm)

svn path=/trunk/; revision=2049
2001-07-06 22:05:05 +00:00