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add the command map.

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okuji 1999-10-20 20:13:15 +00:00
parent 460515b963
commit 42afef19eb
6 changed files with 257 additions and 5 deletions
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@ -1,3 +1,27 @@
1999-10-21 OKUJI Yoshinori <okuji@kuicr.kyoto-u.ac.jp>
Add BIOS drive remapping support for chain-loading some foolish
operating systems.
* stage2/builtins.c (bios_drive_map): New variable.
(boot_func): If KERNEL_TYPE is KERNEL_TYPE_CHAINLOADER, check
if BIOS_DRIVE_MAP contains meaningful values. If so, search for
SAVED_DRIVE in BIOS_DRIVE_MAP and exchange SAVED_DRIVE with the
mapped drive if found. And then call set_int13_handler.
(map_func): New function.
(builtin_map): New variable.
(builtin_table): Added a pointer to BUILTIN_MAP.
* stage2/asm.S (ABS): New macro.
[!STAGE1_5] (set_int13_handler): New function.
[!STAGE1_5] (int13_handler): New interrupt handler for the real
mode.
[!STAGE1_5] (drive_map): New variable.
[!STAGE1_5] (int13_handler_end): New label used for just
computing the end address of int13_handler.
* stage2/shared.h (DRIVE_MAP_SIZE): New macro.
(set_int13_handler): Declared.
* grub/asmstub.c (set_int13_handler): New function. Do nothing.
1999-10-20 OKUJI Yoshinori <okuji@kuicr.kyoto-u.ac.jp>
* stage2/builtins.c (find_func): Print only the device names.