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Revision: 1.32
Committed: 2000-07-13T17:45:50Z (24 years, 4 months ago) by cebix
Branch: MAIN
CVS Tags: snapshot-13072000
Changes since 1.31: +9 -1 lines
Log Message:
- updated doc files

File Contents

# User Rev Content
1 cebix 1.29 V0.8 (snapshot) -
2 cebix 1.32 - Unix: runs natively on NetBSD/m68k
3     - Unix: compiles without pthreads, but without serial/ethernet/audio
4     support
5     - Unix: "--without-mon" configure option now works
6     - Unix/video_x.cpp: DGA and SHM are only tried on local X11 displays
7     - Unix/video_x.cpp: re-integrated old window update method; frameskip=0
8     ("Dynamic") selects new method, other values select old method
9     - Unix/prefs_editor_unix.cpp: new "Input" pane, containing keycode
10     and mouse wheel options
11 cebix 1.31 - AmigaOS: added support for CyberGraphX [Jürgen Lachmann]
12 cebix 1.30 - audio.cpp: audio_data is cleared on reset [Lauri Pesonen]
13 cebix 1.29 - prefs.cpp: empty string prefs items could be written to prefs file
14     but not read back correctly
15     - clip_*.cpp: added prefs item "noclipconversion" for turning off
16     charset conversion of text clips (only CR->LF gets translated),
17     [Toshimitsu Tanaka]
18    
19 cebix 1.28 V0.8 (snapshot) - 14.Mar.2000
20 cebix 1.26 - Unix/video_x.cpp: new window refresh code [Samuel Lander]
21 cebix 1.27 - Unix/timer_unix.cpp: fixed time zone handling under Linux and SVR4
22 cebix 1.26
23 cebix 1.25 V0.8 (release 0.8-1) - 30.Jan.2000
24     - extfs: extended size of finf helper files to 32 bytes to eventually
25     allow storing the complete FInfo/FXInfo in it
26    
27 cebix 1.24 V0.8 (snapshot) - 22.Dec.1999
28 cebix 1.21 - imported UAE CPU 0.8.10 changes
29     - new utility functions Mac_memset, Mac2Host_memcpy, Host2Mac_memcpu
30     and Mac2Mac_memcpy
31     - extfs.cpp: fixed bug in fs_rename() and fs_cat_move() (auxiliary
32 cebix 1.24 IOParam block was not in Mac address space and FSItem parent IDs
33     didn't get swapped) [Lauri Pesonen]
34 cebix 1.23 - extfs.cpp: several fixes [Lauri Pesonen]
35 cebix 1.21 - some provisions for using UAE CPU compiler (doesn't work yet)
36 cebix 1.22 - video_x.cpp: XFree86 VidMode extension is used to switch modes
37     in DGA mode
38 cebix 1.21
39 cebix 1.20 V0.8 (snapshot) - 2.Nov.1999
40 cebix 1.16 - fixed many UAE FPU bugs [Lauri Pesonen]
41 cebix 1.13 - added replacement for BlockMove() trap
42     - removed Windows sources from the source archive; a version of
43     these that actually compiles and works can be downloaded from
44     Lauri Pesonen's site
45 cebix 1.18 - removed the MemoryDispatch() replacement routine; the routine
46     in the ROM is now always used; this fixes the MacOS 8 Finder
47     copying bug and also most "unimplemented trap" errors on MacOS
48     bootup; yeah :-)
49     - a warning is issued if the ROM seems to require an FPU but FPU
50     emulation is turned off
51 cebix 1.12 - medium removal is allowed in CDROMExit()
52 cebix 1.18 - added (incomplete) emulation of 68040 instructions (CINV, CPUSH,
53     MOVE16 (Ax)+,(Ay)+, and FPU stack frames), enough to boot MacOS
54     - UAE CPU: opcode routines no longer return the cycle count
55 cebix 1.16 - extfs.cpp: fixed bug with fsResolveWDCB in fs_get_wd_info()
56 cebix 1.12 - Unix: added support for ESD audio output; merged with OSS audio
57     and put in a new "audio_oss_esd.cpp" file which is also used under
58     FreeBSD 3.x
59     - Unix: added mkinstalldirs to "make install" target
60     - Unix: cleaned up the configure script
61 cebix 1.15 - Unix: ROM breakpoint can be specified with "-break" command line
62     argument
63 cebix 1.16 - Unix: "-rominfo" command line argument to print information
64     about ROM version and tables
65     - Unix: ExtFS supports resource forks and Finder info (these are
66     kept in hidden ".finf" and ".rsrc" directories)
67 cebix 1.13 - Unix/audio_oss_esd.cpp: AudioStatus is re-set after determining
68     audio device capabilities (actual sample rate is also determined)
69     [Alexander R. Pruss]
70     - Unix/audio_oss_esd.cpp: "silence" in 8-bit mode used wrong fill
71     value (0 instead of 0x80) [Alexander R. Pruss]
72 cebix 1.14 - Unix/video_x.cpp: added mouse wheel support [Alexander R. Pruss]
73 cebix 1.18 - Unix/sys_unix.cpp: device size is read correctly under Linux
74 cebix 1.19 - AmigaOS: removed support for SAS/C
75     - AmigaOS/sys_amiga.cpp: supports 64-bit device I/O (NSD)
76     - AmigaOS/sys_amiga.cpp: device block size is respected on writes
77 cebix 1.12
78 cebix 1.11 V0.8 (snapshot) - 21.Oct.1999
79 cebix 1.6 - sony.cpp/disk.cpp/cdrom.cpp: disk insertions are now checked for
80     by an interrupt routine
81 cebix 1.7 - localizable strings are now split into a common and a platform-
82 cebix 1.6 specific set
83 cebix 1.8 - added external file system to access host OS files from the MacOS;
84     root directory is specified by the "extfs" prefs item
85     - moved most initialization/deinitialization code to InitAll() and
86     ExitAll() in main.cpp
87 cebix 1.7 - added patches for NetBSD [Bernd Sieker]
88     - corrected TimerDateTime() in timer_unix.cpp and timer_beos.cpp
89     [Toshimitsu Tanaka]
90 cebix 1.9 - AmigaOS: fixed crash when gtlayout.library was not present
91     - AmigaOS: now compiles with GCC (Geek Gadgets)
92 cebix 1.8 - AmigaOS/clip_amiga.cpp: fixed small bug in CR->LF translation
93     [Giacomo Magnini]
94     - Unix: compilation of cpuemu.cpp is now split in 8 parts
95     - Unix: volume list in GTK prefs editor is reorderable
96 cebix 1.10 - Unix: added fbdev DGA support and SPARC assembly optimizations to
97     UAE core [Gwenole Beauchesne]
98 cebix 1.6
99 cebix 1.5 V0.7 (release 0.7-2) - 6.Oct.1999
100     - Added BasiliskII.spec for making RPMs [with assistance from
101     Roman Niewiarowski]
102 cebix 1.2 - Unix: "basilisk_ii_keycodes" renamed to "keycodes", default
103     location of keycodes file is now /usr/local/share/BasiliskII/keycodes
104 cebix 1.3 - Unix: improved the install target, added uninstall target
105 cebix 1.4 - Unix/Windows: fixed bugs in protocol removal [Lauri Pesonen]
106 cebix 1.3 - Unix/Linux/NetDriver: removed MAKEDEV, functionality now included
107     in Makefile ("make dev")
108 cebix 1.1 - Unix/sys_unix.cpp: Sys_open() checks whether an HFS volume is currently
109     mounted under Linux and tries to unmount it
110     - Unix/sys_unix.cpp: implemented SysAddDiskPrefs() for Linux (scans
111     /etc/fstab to find HFS volumes)
112     - Unix/sys_unix.cpp: implemented Sys(Prevent/Allow)Removal() [Ryan Cumming]
113     - Unix/main_unix.cpp: added call to gtk_set_locale() before gtk_init()
114     [Toshimitsu Tanaka]
115 cebix 1.3 - Unix/video_x.cpp: "dga" screen preferences now takes width and
116     height as parameters (e.g. dga/640/480), like "win" [Pablo Averbuj]
117     - Unix/video_x.cpp: Caps Lock behaves as expected [Pablo Averbuj]
118     - Unix/prefs_editor_gtk.cpp: made the window width/height widgets
119     comboboxes providing some useful defaults
120 cebix 1.1
121     V0.7 (alpha) - 25.Jul.1999
122     - with 32-bit clean ROMs, the CPU type is now reported as a 68030
123     (for those OpenTransport fans :-)
124     - added new prefs item "nosound" to disable sound output
125     - sound output implemented for BeOS, Linux, Solaris and AmigaOS
126     (requires Sound Manager 3.x)
127     - dummy/audio_dummy.cpp: created
128     - dummy/prefs_dummy.cpp: created
129     - dummy/xpram_dummy.cpp: created
130     - macos_util.cpp: added FileDiskLayout()
131     - video.cpp: removed useless BlankMousePointer flag
132     - uae_cpu: updated to UAE 0.8.9
133     - uae_cpu/gencpu.c: fixed bug in CAS2, OpenTransport works now
134     - Unix: moved Linux- and FreeBSD-specific files to their respective
135     directories
136     - Unix: added 64-bit data types (needed by timer_unix.cpp)
137     - Unix: added keyboard translation method using raw keycodes instead of
138     keysyms (controlled by "keycodes" and "keycodefile" prefs items) which
139     doesn't depend on the selected keymap
140     - Unix: when running as root, Basilisk II tries to assign real-time
141     priorities to some threads
142     - Unix: calls to nanosleep() protected by autoconf define
143     - Unix/main_unix.cpp: tick thread replaced by POSIX.4 timer when possible
144     - Unix/timer_unix.cpp: uses POSIX.4 timing facilities when possible
145     - Unix/video_x.cpp: all X calls during emulation are now done from
146     the redraw thread which is also active in DGA mode; as a result,
147     XLockServer()/XUnlockServer() are no longer necessary
148     - Unix/sysdeps.h: changed C++ comments to C comments as this file is
149     included by some *.c files in uae_cpu [Brian J. Johnson]
150     - Unix/sysdeps.h: added unaligned access functions for SGI MIPSPro
151     compiler [Brian J. Johnson]
152     - Unix/Irix/unaligned.c: created [Brian J. Johnson]
153     - Windows: updated sources
154    
155     V0.6 (alpha) - 12.Jul.1999
156     - Unix: Basilisk II now accepts a "-display <display>" argument to
157     specify the X display to use
158     - Unix: mounting floppies with Ctrl-F1 now works
159     - Unix/ether_linux.cpp: now works when ethertap is configured for
160     multicast support
161     - Unix/main_unix.cpp: XOpenDisplay() is now called from main()
162     - Unix/scsi_freebsd.cpp: added support for FreeBSD 2.x [Orlando Bassotto]
163     - Unix/posix_sem.cpp: updated [Orlando Bassotto]
164     - Unix/prefs_editor_gtk.cpp: serial pane recognizes FreeBSD serial/
165     printer devices [Orlando Bassotto]
166     - Unix/serial_unix.cpp: FreeBSD printer devices are recognized
167     [Orlando Bassotto]
168     - Unix/sys_unix.cpp: FreeBSD CD-ROM/floppy support, correct default
169     serial prefs for FreeBSD [Orlando Bassotto]
170     - Unix/sys_unix.cpp: fixed SysIsDiskInserted for Linux floppy
171     - Unix/FreeBSD/scsidump.cpp: added [Orlando Bassotto]
172    
173     V0.6 (alpha) - 5.Jul.1999
174     - fixed mouse for Classic ROM and MacOS 6.x/7.x
175     - Unix/ether_linux.cpp: added ethertap support (see README for details)
176     - dummy/clip_dummy.cpp: created
177    
178     V0.6 (alpha) - 2.Jul.1999
179     - rom_patches.cpp: added CheckROM() which has to be called before
180     PatchROM()
181     - rom_patches.cpp: started ROM patches for Classic/SE ROMs
182     - adb.cpp: ADB handlers get ADBBase passed in a3
183     - adb.cpp: moved temporary data area to ADBBase+0x163 (Mac Classic
184     mouse handler wants it there)
185     - emul_op.cpp/EMUL_OP_CLKNOMEM: reading from the RTC time registers
186     yields the correct time and date
187     - uae_cpu/cpu_emulation.h: added FLAYOUT_NONE to disable frame buffer
188     mapping
189     - uae_cpu/basilisk_glue.cpp: RAMBaseMac/ROMBaseMac are now set in
190     Init680x0() (instead of main_*.cpp)
191     - uae_cpu/memory.cpp: added support for Mac Plus/II memory maps
192     and 24 bit addressing
193     - uae_cpu/newcpu.cpp: re-implemented support for 68000/010 emulation
194     - uae_cpu/cpuopti.c: patched for egcs [Orlando Bassotto]
195     - main_*.cpp: added TwentyFourBitAddressing flag
196     - main_*.cpp: CPU type and addressing mode depends on ROM version
197     - main_*.cpp: tick thread changed to use new TimerDateTime() function
198     - include/video.h: VideoInit() takes "classic" parameter to select
199     "Classic" video mode (512x342, 1-bit)
200     - include/timer.h: new function TimerDateTime() to get local date/time
201     in Mac format
202     - Unix: support for FreeBSD [Orlando Bassotto]
203     - Unix/scsi_freebsd-cam.cpp: created [Orlando Bassotto]
204     - Unix/posix_sem.cpp: created [Orlando Bassotto]
205     - Unix/main_unix.cpp: added call to XF86DGAForkApp()
206     - Unix/video_x.cpp: support for Classic video mode and display on
207     1-bit screens
208     - Unix/video_x.cpp: added check whether screen is really DGA capable
209     - Unix/video_x.cpp: added check for image endianess
210     - Unix/sys_unix.cpp: added replacement for Linux llseek() for platforms
211     that don't have it
212     - Unix/*.cpp: replaced sleep()/usleep() by nanosleep()
213     - Amiga/prefs_editor_amiga.cpp: ROM file selection via file requester
214     didn't work
215    
216     V0.6 (alpha) - 22.Jun.1999
217     - fixed small compilation problems on BeOS/x86
218     - rsrc_patches.cpp: fixed for MacOS 7.6.1
219     - dummy/scsi_dummy.cpp: scsi_send_cmd() was missing timeout parameter
220     - Unix/video_x.cpp: fixed compilation problem on systems without DGA
221     - BeOS/prefs_editor_beos.cpp: it is now possible to drop ROM files on
222     the "ROM File" control
223     - BeOS/sys_beos.cpp: Basilisk II will not try to unmount volumes (from
224     BeOS) that are to be mounted read-only
225    
226     V0.6 (alpha) - 20.Jun.1999
227     - scsi.cpp: added "timeout" parameter to scsi_send_cmd()
228     - scsi_*.cpp: fixed S/G table processing bug in scsi_send_cmd()
229     (every entry was written to/read from the same buffer address)
230     - Unix/scsi_linux.cpp: implemented
231     - Unix/video_x.cpp: new hotkeys: Ctrl-Esc = emergency quit from DGA mode,
232     Ctrl-Tab = suspend DGA mode
233     - Unix/video_x.cpp: implemented VideoQuitFullScreen() (used by
234     ErrorAlert())
235     - BeOS/video_beos.cpp: implemented VideoQuitFullScreen() (used by
236     ErrorAlert())
237    
238     V0.6 (alpha) - 19.Jun.1999
239     - sys_*.cpp: 400K DiskCopy disk images are now recognized (84 byte
240     header)
241     - user_strings.cpp: added strings for GTK preferences editor
242     - Unix: implemented preferences editor (requires GTK)
243     - Unix: added "install" target to Makefile
244     - Unix: created minimal man page
245     - Unix/main_unix.cpp: ErrorAlert() and WarningAlert() pop up dialog
246     boxes when GTK is present
247     - BeOS/prefs_editor_beos.cpp: added "Create" button to volume list
248     - BeOS/prefs_editor_beos.cpp: "About" dialog added
249    
250     V0.5 (alpha) - 13.Jun.1999
251     - prefs.cpp: added ZapPRAM()
252     - prefs.cpp: PrefsReplaceString() can now take an index
253     - user_strings.cpp: added strings for preferences editor
254     - prefs_editor_*.*: created
255     - sys.h: SysCDStop() now takes the MSF address of the lead-out track
256     as a parameter
257     - AmigaOS: start offset and size of devices is now given in blocks,
258     not bytes
259     - AmigaOS: implemented preferences editor
260     - BeOS: implemented preferences editor
261     - AmigaOS/sys_amiga.cpp: added checks for NSD and 64-bit TD commands
262     (not yet used)
263     - AmigaOS/sys_amiga.cpp: implemented CD audio commands
264     - Unix/sys_unix.cpp: CD-ROM devices are opened with O_NONBLOCK flag
265     - Unix/sys_unix.cpp: using CDROM_DRIVE_STATUS to check for inserted
266     disks if drive supports it
267     - Unix/sys_unix.cpp: CD-ROM devices are closed and reopened on eject
268     to clear the driver's internal buffers
269     - Unix/video_x.cpp: added incremental refresh mode [David Lawrence]
270     - Unix/video_x.cpp: small changes to the DGA code
271    
272     V0.5 (alpha) - 17.May 1999
273     - new "fpu" prefs item to enable/disable the (buggy) UAE FPU emulation
274     - Defaults for platform-specific prefs items can be set in the new
275     AddPlatformPrefsDefault() function which gets called by PrefsInit()
276     - added dummy audio component, so MacOS versions >=7.5 should be more
277     stable when running programs that try to do something with sound
278     - adb.cpp: relative mouse mode should work a bit better
279     - macos_util.cpp: new function HasMacStarted() to check Mac warm
280     start flag
281     - macos_util.cpp: new function MountVolume() to aid implementation
282     of manual volume mounting
283     - cdrom.cpp: added CDROMMountVolume()
284     - BeOS: replaced "Mount floppy" menu item by submenu with list of all
285     removable volumes
286     - Win32: many fixes and improvements [Lauri Pesonen]
287    
288     V0.5 (alpha) - 8.May 1999
289     - added information about GPL to all source files
290     - rom_patches.cpp: fixed one unaligned access problem (Sparc)
291     - replaced "off_t" by "loff_t" to allow 64 bit disk access under Linux
292     - created "dummy" platform directory containing generic "do-nothing"
293     versions of certain files to aid in testing and porting
294     - Unix: improved autoconf stuff and sysdeps.h
295     - Unix: now compiles under Solaris
296     - Unix/video_x.cpp: automatic SHM detection, fallback to XPutImage
297    
298     V0.5 (alpha) - 26.Apr.1999
299     - main_*.cpp: ramsize is rounded down to 1MB boundary
300     - uae_cpu/memory.h: added "REGPARAM2" in more places [Lauri Pesonen]
301     - uae_cpu/memory.cpp: changed "Diff" variables from "uae_8 *" to
302     "uae_u32" [Lauri Pesonen]
303     - uae_cpu/memory.cpp: added "REGPARAM2" in more places [Lauri Pesonen]
304     - uae_cpu/newcpu.h: added "REGPARAM2" in more places [Lauri Pesonen]
305     - uae_cpu/newcpu.cpp: added "REGPARAM2" in more places [Lauri Pesonen]
306     - Windows/*: integrated updated Windows sources from Lauri Pesonen
307    
308     V0.5 (alpha) - 25.Apr.1999
309     - prefs.cpp/PrefsRemoveItem(): deleting the last item now works
310     - uae_cpu/memory.cpp: changed "uae_u8 REGPARAM2 *func()" to
311     "uae_u8 *REGPARAM2 func()"
312     - Unix/ether_unix.cpp: implemented
313     - Unix/Linux/NetDriver: created
314     - Unix/video_x.cpp: added support for 32 bit screens, cleaned up
315     VisualInfo code
316     - BeOS/ether_beos.cpp: cleaned up the code
317     - BeOS/video_beos.cpp: full screen video mode and color depth can now
318     be set via prefs("scr/<mode>")
319    
320     V0.4 (alpha) - 15.Apr.1999
321     - Added some literature references to the source files
322     - Modularized CPU engine: the interface of the CPU engine is now
323     defined in cpu_emulation.h, so different CPU engines can be
324     substituted more easily [as requested by Bill Huey]
325     - uae_cpu/gencpu.c: duplicate_carry() was missing in SUB and NBCD routines
326     - Unix: added autoconf stuff
327     - Unix: modified the makefile so it won't fail if cpuopti didn't work
328     [Daniel Thompson]
329    
330     V0.4 (alpha) - 11.Apr.1999
331     - cdrom.cpp: find_hfs_partition() bailed out too soon when finding no
332     "PN" signature [Lauri Pesonen]
333     - prefs.cpp: prefs file allows more whitespace between keyword and value
334     [Lauri Pesonen]
335     - prefs.cpp: remodeled to allow platform-specific prefs items (list of
336     keywords is kept in table)
337     - video.cpp/cscSetEntries: luminance mapping uses integer instead of
338     floating point math
339     - video_*.cpp: on most systems, the frame buffer is allocated with
340     two additional lines as some ROM versions seem to write behind
341     the frame buffer proper
342     - BeOS/Unix/sysdeps.h: defined X86_ASSEMBLY on i386/GCC systems
343     - BeOS/Unix/sysdeps.h: redefined get/put_mem() functions to take and
344     return an uae_u32 value, added some more x86 optimizations
345     - Unix/serial_unix.cpp/kSERDBaudRate: rates between 57600 and 65535
346     result in a rate of 57600 [Lauri Pesonen]
347    
348     V0.4 (alpha) - 10.Apr.1999
349     - upgraded to UAE 0.8.8 CPU, CPU is now built with "gencpu", UAE sources
350     moved to "uae" directory
351     - new preferences item "rom" to specify the path of the ROM file
352     - new preferences item "ether" for Ethernet driver
353     - new INTFLAG_ETHER interrupt flag
354     - main_*.cpp: added ChoiceAlert()
355     - main_*.cpp: disabled UAE FPU (as it is buggy)
356     - serial_*.cpp: device_name is now a "const char *"
357     - serial_*.cpp: implemented monitor (#define MONITOR 1 to activate)
358     - *.h: changed "#ifdef _XXX_H_" to "#ifdef XXX_H" as symbols starting
359     with an underscore are reserved
360     - rom_patches.cpp: icon data moved to sony/disk/cdrom.cpp
361     - rom_patches.cpp: removed unnecessary a0/a1 save/restore from drivers
362     - slot_rom.cpp: removed unnecessary a0/a1 save/restore from drivers
363     - serial_defs.h: added error codes
364     - AmigaOS: the Kickstart ROM is no longer used to redirect NIL pointer
365     accesses as this crashes some machines (especially 68040-based);
366     a scratch memory block is used instead
367     - AmigaOS/serial_amiga.cpp: implemented
368     - AmigaOS/ether_amiga.cpp: implemented
369     - AmigaOS/sys_amiga.cpp: SysAddSerialPrefs() now returns real defaults
370     - AmigaOS/main_amiga.cpp: when the memory for the Mac RAM and ROM
371     cannot be allocated, an error message is displayed (instead of crashing)
372     - AmigaOS/main_amiga.cpp: interrupts are disabled during execution
373     of an EMUL_OP routine
374     - AmigaOS/asm_support.asm: the CTRL-C handler checks for pending
375     AmigaDOS operations
376     - AmigaOS/asm_support.asm: the interrupt signal exception is rethrown
377     when the interrupt level in EmulatedSR gets lowered while interrupts
378     are pending
379     - BeOS: switched from project files to Be supplied makefile system
380     - BeOS/ether_beos.cpp: implemented
381     - BeOS/serial_beos.cpp: modem status of parallel device is returned
382     as (dsrEvent | dcdEvent | ctsEvent)
383     - BeOS/serial_beos.cpp: implemented kSERDBaudRate
384     - BeOS/serial_beos.cpp: serdtDCE is set in PrimeIn()/PrimeOut()
385     - Unix/serial_unix.cpp: added support for parallel ports
386     - Unix/serial_unix.cpp: serdtDCE is set in PrimeIn()/PrimeOut()
387     - Unix/video_x.cpp: pressing F12 and q will quit Basilisk II in DGA mode
388     (useful when it crashed)
389    
390     V0.3 (alpha) - 14.Mar.1999
391     - Unix/video_x.cpp: added 15, 16 and 32 bit window modes [Bill Huey]
392     - BeOS/video_beos.cpp: "screen" prefs item is now either
393     "win/<width>/<height>" for window mode or "scr" for full-screen
394     mode
395     - added documentation of preferences file format to README
396    
397     V0.2 (alpha) - 11.Mar.1999
398     - tested with ROM versions 19 and 26
399     - prefs.cpp: renamed TYPE_BOOL to TYPE_BOOLEAN beacuse of name clash on
400     BeOS R4.1
401     - uae_memory.cpp: added support for frame buffer pixel type conversion
402     in virtual addressing mode, the Mac frame buffer layout now has to be
403     specified in MacFrameLayout (video.h)
404     - Unix/video_x.cpp: the "screen" prefs item is now read to select
405     window mode (with a specified window size) or DGA mode
406     - Unix/video_x.cpp: DGA mode supports 15, 16 and 32 bit modes (packed
407     24 bit pixels don't work)
408     - Unix/Makefile.linux: added -D_REENTRANT to compiler flags
409    
410     V0.2 (alpha) - 23.Jan.1999
411     - first alpha release