1 Virtual Jaguar v1.0.7 GCC/SDL
2 -----------------------------
4 * Fixed a blitter intensity addition problem. This fixes the title in Hover
5 Strike and the road/shadows in Checkered Flag. [Shamus]
6 * Partially fixed a problem with the SUBC opcode in the RISC processors. This
7 allows Hover Strike, Phase Zero and Fight For Life to boot into their title
8 screens and makes them somewhat playable. [Shamus]
9 * Fixed a horizontal scaling problem in the OP and the off-by-one bug that it
10 reintroduced. This fixes the road in Atari Karts and probably a few others.
12 * Fixed a long standing blitter bug that kept certain doors in AvP from
13 rendering correctly. [Shamus]
14 * Fixed some vertical positioning bugs in the OP. Now Checkered Flag, Alien
15 vs Predator and probably others now work as they should (graphically ;-)
17 * Better GUI support. Most options in the GUI work now, and more are expected
18 to be functional in the near future. [Shamus]
19 * Fixed a few more lingering blitter bugs (there are more to be found). This
20 fixes most of the glitches in Cybermorph and Alien vs Predator. [Shamus]
21 * Fixed an Object Processor scaled bitmap bug that caused incorrect
22 positioning of scaled bitmaps that started outside the line buffer, and
23 also fixed a problem that caused the OP to hang in certain situations. This
24 fixes Bubsy, International Sensible Soccer, and probably a few others.
28 Virtual Jaguar v1.0.6 GCC/SDL
29 -----------------------------
31 * Added support for gzipped ROM files. [Adam Green]
32 * Added OpenGL support. Because of this, aspect ratios in the various
33 graphic modes should be correct now. Thanks goes to Niels for enlightenment
34 in this area. :-) [Shamus]
35 * Moved all platform specific video code to video.cpp. This should make it
36 easier to add functionality to the video subsystem without having to chase
37 code around in places where it didn't belong. [Shamus]
38 * Key bindings are now customizable. [Shamus]
39 * VJ now uses a config file (vj.cfg) for commonly used settings. Settings in
40 the config file can still be overridden by command line switches. [Shamus]
41 * Preliminary GUI mouse support. [Shamus]
42 * Fixed an off-by-one bug in the Object Processor when dealing with scaled
43 bitmap objects. [Shamus]
44 * Fully virtualized screen size. What this means is that we can keep the
45 Jagaur screen displayed in a convenient size (320 x 240) and the graphics
46 that various ROMs display will now be properly centered (more or less, they
47 were really centered for a TV display). [Shamus]
48 * Border color is now displayed properly. [Shamus]
49 * Fully pipelined DSP core. Because of this, Wolfenstein 3D now has sound. To
50 use the old core, use the -nopipeline switch. [Shamus]
53 Virtual Jaguar v1.0.5 GCC/SDL
54 -----------------------------
56 * Various fixes to the codebase so that it compiles and works properly on
57 Linux. :-) The makefiles are almost identical now, the only thing that's
58 different between them are the SYSTYPE and EXESUFFIX variables defined at
60 * Fixed a pernicious blitter bug that kept Rayman from doing proper collision
62 * Added a simple file selector so that typing in long filenames in order to
63 run the emulator is no longer necessary. :-) To use it, instead of
64 supplying a ROM name, simply put in the name of the directory where your
66 * Removed all the assembly language code from the DSP, so it should be a
67 little less buggy now. Also, removed some brain-dead timeslice releasing
68 that was causing a bunch of problems with various ROMs. [Shamus]
69 * Added sound support! In order to hear any sound, you probably have to
70 start VJ with the -dspon switch. Also, unless you have a very fast computer
71 the sound is going to be choppy. Hopefully future optimizations will cure
73 * Added GUI support. You can see the results by hitting the TAB key while the
74 emulator is running. ;-) [Shamus]
75 * Lots of cleanups to the source code including the ability to trace who
76 writes what to where. [Shamus]
79 Virtual Jaguar v1.0.4 GCC/SDL - source only release
80 ---------------------------------------------------
82 * Lots of bugfixes. [Shamus]
83 * Jaguar BIOS now works properly and is used by default. BIOS failure was
84 due to a bug in the GPU (specifically in the SUBC and ADDC opcodes). To
85 override this behavior, use the -nobios switch. [Shamus]
86 * Rewrote the OP code--mostly because it was pissing me off. ;-) Not
87 to mention that it was almost completely unmaintainable in its former
88 state and was just plain wrong in its implementation in many places.
89 Because of this, some RMW effects that were missing from AvP are present
90 now and leftover crud in scaled bitmaps in Rayman is gone now. ;-) [Shamus]
91 * ZIP support! Now there is no longer any need to unzip ROMs (although if
92 you prefer to waste HD space, VJ will gladly accomodate you). The code to
93 support this is a pretty ugly hack, but it works and there are other fish
94 to fry at the moment. Also, ZLIB is now required to compile VJ. [Shamus]
95 * Support for PD ROMs. Currently the only one that works at all is JagMania,
96 though as the hardware emulation gets better more PD ROMs will begin to
97 work. Note that you must use the -nobios switch for this to work. [Shamus]
98 * Preliminary support for PAL Jaguar emulation. Default is NTSC. To use it,
99 use the -pal switch. [Shamus]
100 * Support for DSP activation. The DSP is now *off* by default, since it
101 doesn't work properly yet. Use the -dspon switch to force the DSP on.
103 * Removed all hacks that were written to support a specific ROM from the OP
104 and GPU code (much more remains to be removed). Since the CRCs that were
105 calculated to support these hacks were done on byte swapped ROMs, they
106 weren't working anyway. Besides which, a hack means that you don't
107 understand the hardware properly and/or don't know how to write the code to
108 properly emulate the hardware. ;-) [Shamus]
109 * Renamed the executable from the ridiculously named jag_em to the more
110 sensibly named vj. Note that the Jag_em.cpp file has also been changed to
111 reflect this name change. [Shamus]
112 * Removed Aaron Giles 68K dissasembler in favor of the one included with the
113 Musashi core. It's there, why not use it? ;-) [Shamus]
114 * Reordered the order of A, B, and C buttons to more accurately reflect their
115 respective positions on a real Jaguar controller. Also fixed a small bug that
116 kept the number pad from reporting the right numbers to the emulator. :-)
118 * Started to remove the !__PORT__ defintions from the source code. Since this
119 is supposed to be a portable emulator, we won't be using any MS specific
120 code anyway. [Shamus]
121 * Fixed some problems with the blitter when doing clipping and bit expansion.
122 Also fixed (reintroduced?) a bug that existed in the real blitter HW (the
123 YADD1 bit in A2--fixes Tempest 2000). [Shamus]
124 * Probably a bunch of other stuff that I've forgotten about. ;-) [Shamus]
126 NOTE: Tested only on WIN32 platform! ;-)
129 Virtual Jaguar v1.0.3 GCC/SDL - source only release
130 ---------------------------------------------------
132 * Converted GNU assembly in the GPU core to C code -- Rayman and
133 Alien vs Predator work again. :-) [Shamus]
134 * Removed closed source Starscream and replaced it with the open source
135 Musashi core. Because of this, VJ runs a little faster now. :-) [Shamus]
136 * Various cleanups to the source files (still lots of work to do!) [Shamus]
138 NOTE: Tested only on WIN32 platform!
141 1.0.1 - 1.0.2 - Unreleased, mostly for testing/finding bugs
142 -----------------------------------------------------------
144 * Lots of stuff happened, but we can't remember any of it. :-)
147 Virtual Jaguar v1.0.0 GCC/SDL - initial source release
148 ------------------------------------------------------
150 * Converted VC++ assembly to standard GNU assembly;
151 * Fixed small bugs in SDL related items (keyboard/graphics);
152 * Added *some* optimalisations to the graphics sources;
153 * Added joystick support (not tested);
154 * Added joystick port support (not tested);
155 * Added frameskip support;
157 Source only release. Tested on BeOS, Linux, FreeBSD and WIN32.
158 SOUND emulation was NOT done. Need help with this one :)
161 SDLEMU (Niels Wagenaar & Caz) - http://sdlemu.ngemu.com