kernel

Commit Graph

Author	SHA1	Message	Date
C. Masloch	2efe4ab9f4	boot: enable loading from file systems with 256 sectors per cluster This should be Enhanced DR-DOS compatible. oemboot.asm contains an optimisation to save 2 bytes, by using mov instead of a lea with bp evaluating to a constant value. This was needed to fit the addition for 256 spc support. It is otherwise unrelated. The LBA detection patch offsets in SYS have also been updated to match the changed boot.asm offsets.	2023-01-04 19:38:57 -05:00
C. Masloch	92ae538f1d	boot: allow instsect to match the filesystem ID string Reference: https://hg.ulukai.org/ecm/instsect/file/33218c729b43/instsect.asm#l1257 lDOS's instsect recently started to default to checking the filesystem ID string in order to validate that the boot sector loader to write matches the detected FS. Using the /S=filename option or building instsect to include the FreeDOS kernel's loaders would require use of the /SN switch without this commit. In addition, boot.asm and oemboot.asm are made to check that exactly one of the ISFAT12 and ISFAT16 defs is defined so as to select the FS. Prior to this commit using both or neither def would silently result in a broken loader.	2020-11-28 12:11:16 -05:00
KJD	c431157156	FreeDOS kernel current - 2041+svn1709	2012-10-14 20:08:06 -04:00

Author

SHA1

Message

Date

C. Masloch

2efe4ab9f4

boot: enable loading from file systems with 256 sectors per cluster

This should be Enhanced DR-DOS compatible.

oemboot.asm contains an optimisation to save 2 bytes,
by using mov instead of a lea with bp evaluating to
a constant value. This was needed to fit the addition
for 256 spc support. It is otherwise unrelated.

The LBA detection patch offsets in SYS have also been
updated to match the changed boot.asm offsets.

2023-01-04 19:38:57 -05:00

C. Masloch

92ae538f1d

boot: allow instsect to match the filesystem ID string

Reference: https://hg.ulukai.org/ecm/instsect/file/33218c729b43/instsect.asm#l1257

lDOS's instsect recently started to default to checking
the filesystem ID string in order to validate that the
boot sector loader to write matches the detected FS.
Using the /S=filename option or building instsect to
include the FreeDOS kernel's loaders would require use
of the /SN switch without this commit.

In addition, boot.asm and oemboot.asm are made to check
that exactly one of the ISFAT12 and ISFAT16 defs is
defined so as to select the FS. Prior to this commit
using both or neither def would silently result in a
broken loader.

2020-11-28 12:11:16 -05:00

KJD

c431157156

FreeDOS kernel current - 2041+svn1709

2012-10-14 20:08:06 -04:00

3 Commits