Commit Graph

4 Commits

Author SHA1 Message Date
KATO Takenori
f2a081cfe4 Added the IPLware 3.33 support.
- Added magic numbers to pretend the NEC original program version
    2.70.
  - Added string display routine with Shift-JIS code support.
  - Added three nop instructions at start1 in start.s since the
    installaer of the IPLware put 'call $0x09ab' instruction.
  - Put the near return instruction at 0x9ab in selector.s.

Since the Shit-JIS display routine must be located at 0x1243, the
linker script file (ldscript) is applied.
2007-04-07 08:37:04 +00:00
KATO Takenori
8a44b47598 - Moved the uninitialized variables from the data to the bss section.
- Fixed typos in comment.
2007-03-17 05:30:03 +00:00
KATO Takenori
c4082e99a4 - Fixed missing initialization of current device number.
- Fixed comment.

Pointed out by:	nyan
2000-08-06 14:35:37 +00:00
KATO Takenori
e9b13dd6ec Added PC-98 HDD boot manager. The boot0 is the `IPL' which occupies
sector 0 of a disk and boot0.5 is the `boot selector' which starts
from address 0x400.  The IPL loads boot0.5 and boot0.5 loads bootblock
of a slice.

The boot manager stuff was developed by me (kato) with Borland C++,
and then, translated into bcc in the ports collection by Nokubi-san.
After that, boot0 has been translated into gas with the .code16
directive by Takahashi-san (nyan) and boot0.5 has been rewritten in
gas by me.
2000-08-02 08:46:08 +00:00