0.82.21 (next)
- FAT driver now assigns current date/time when
creating directories. - Increased the DTA segment size of the DOS FAT driver
to fix problems with directory searches corrupting
adjacent memory. - Disk Parameter Block linked list now terminates
with next pointer at FFFF:FFFF instead of 0000:0000
to match general DOS pattern and satisfy some
PC-98 games that enumerate the list. - INT AH=52h List of Lists now points to the Disk
Parameter Block as well, which allows some PC-98
games that enumerate the list to work. - Video parameter list and table at BIOS DATA AREA
40:A8 added to MCGA mode, to match real PS/2 MCGA
hardware. - FAT driver now updates the Disk Parameter
Block when activated, and provides as much
from the FAT filesystem as possible. It is now
possible to run Microsoft MS-DOS 6.22
SCANDISK.EXE on a drive letter attached from
a disk image. - Disk Parameter Block is now the proper full
size. The limited 9 bytes/block hackery has
been removed. - Added INT 25h/INT 26h emulation for FAT drives
mounted with IMGMOUNT. - Fake disk paramter table fixed to indicate one
reserved sector. - Fixed INT 25h/INT 26h to return an error rather than
silently fail with success. Emulation of these calls
exist currently only as stubs and, according to
source comments, as a workaround for MicroProse
installers. For disk diagnostic software like
Microsoft ScanDisk it is better to signal an error
until INT 25h/INT 26h are fully implemented. - Added dosbox.conf option to control whether INT 10h
VESA BIOS function AX=4F00h (Get SVGA information)
zeros the entire 256-byte or 512-byte structure or
not. Turning the option off (no zeroing) allows
"Get Saddam!" to run with SVGA and VESA BIOS
extensions enabled without crashing. The developer
calls INT AX=4F00h but does not provide enough
storage space for the full 256 byte structure,
only enough for the base structure defined by VESA. - INT 2Fh updated to explicitly mention SMARTDRV or
DBLSPACE if values of AX are known to match their
API. - VESA BIOS modelist now includes S3 OEM video modes
as documented by the RBIL, and needed by Line Wars II. - OpenGL output now clears 3 frames instead of 2 after
mode change to deal with nVidia hardware that
reportedly triple buffers OpenGL rendering in
Windows. - INT 21h fixed to always enable the A20 gate through
HIMEM.SYS if dosbox.conf indicates a configuration where
XMS is enabled, the HMA is enabled, and DOS is loaded
high (DOS=HIGH), which is the default configuration
for DOSBox-X. - XMS emulation fixed not to allow conventional memory
block addresses (source or dest) if it extends past
the 1MB+64KB-16 range normally accessible from real
mode, as per Microsoft XMS test program. - XMS emulation fixed to disallow XMS block move/copy
with an odd length byte count, per Microsoft XMS
specification. - XMS emulation no longer allows freeing a XMS block
handle that is still locked, as per Microsoft XMS
specification and testing software. - Enhance existing INT 68h fix for "PopCorn" by adding
a dosbox.conf option to always keep INT 68h NULL,
so that it's possible to run the game in machine
configurations other than CGA. - EGA/VGA: Fix "dynamic parameter save area" pointer,
to make sure it's initialized to zero properly.
This is needed to run "Get Saddam!" in VGA mode
without crashing. - INT 10h AH=12h BL=10h no longer responds in
machine=mcga mode, which allows Thexder to run in
256-color mode properly when emulating MCGA. - Added code to silence the PC speaker, if it was left
on at reset, at BIOS POST. - Added pause at BIOS POST (after reset), with
dosbox.conf option to control, so that screen contents
at reset can be seen. - Writes to unmapped 0xE0000-0xE7FFF in PC-98 mode no
longer print a "write to ROM" warning. PC-98 games
and software like to zero that region whether or not
the 4th bitplane is enabled. - PC speaker emulation now takes into consideration
the case when the 8254 timer has been given a control
word without a counter value, in which case no sound
is to be emitted until a control word is written.
This fixes "Titus the Fox: To Marrakech and Back"
when the game fails to detect Adlib (OPL2) hardware. - Adlib polling hack no longer needed.
- Floppy controller emulation fixed to support sector
sizes other than 512 bytes per sector. - Floppy controller fixed to always set "seek completed"
status bit after seek/calibrate, not just when the
head hits track 0 (programming mistake). - PC-98 40-column text mode is now supported.
- Integrated commits from mainline (Allofich)
- In the mapper, display disabled items or events
with no binding in grey. - Implemented BIOS beep sound for ASCII character 7
- Return failure for INT 13 format calls if the
drive is inactive.
- In the mapper, display disabled items or events
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