Breakpoint will happen in case of writing at unknown memory location
[clinton/Virtual-Jaguar-Rx.git] / docs / WHATSNEW
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b1b673a3 1Virtual Jaguar v2.1.3 R3 GCC/Qt
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2-------------------------------
3
b1b673a3
JPM
4* Added an Exception Vector Table browser window
5* Modified the About window to update the credits list in a more appropriate way
6* Fixed a crash when reading the DWARF information in the case of the DWARF2 format has not been used
7* Added ui, alpine & debugger groups in the settings
8* Added the possibility to erase settings
9* Added the --es-all, --es-ui, --es-alpine & --es-debugger options to erase specific settings
10* Added a keybindings tab and adapted the configuration dialog tabs
11* Fixed a crash, in Release mode, when the HW labels setting is turn on
12* Fixed the SP (Stack) window UI potential missing data
13* Create a directory for EEPROMs (based on the EEPROMs setting) if it doesn't already exist
14* Keep the scrollbar position in accordance of the M68K PC pointer
15* Fixed a crash when DWARF information report a source line number exceeding the number of lines present in a source file
16* Improved the .heap section detection to avoid a detection error
17* Fixed a crash when DWARF information does references to missing source code files
18* Added a Local browser window for local variables
cf76e892
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19
20
b1b673a3
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21Virtual Jaguar v2.1.3 R2 GCC/Qt
22-------------------------------
23
24* Added some error detections when reading the ELF executable file
25* Added all hardware labels (based on the document scans from the Version 2.4 - June 7, 1995)
26* "Step Over" code function for BSR/JSR functions
27* Added the .debug_ranges detection to avoid a detection error
28* DWARF format support
29* Added an All Watch browser window for non-local variables
30* Added a heap allocator browser window based on my own memory allocation functions
31* Added additional 4 memory browser windows with address input based on hexa, decimal or symbol name
32* Windows refreshing executed only if windows is visible
33* Added a restart function
34* Updated the About window to update the credits list
35* Fixed (hacking) the display of the SP (Stack) memory browser
36* Set the emulator in Halt mode when launched in alpine debug mode without a loaded rom
37* Added some information in the --help/-h/-? option
38* --debugger option no longer force the log file
39* Added a --dram-max option to extend the DRAM size to 8MB
40* Added the "enter" key support when setting the BPM (Breapoint)
41* Save the windows positions, size and visibilities (show or hide) status
42
43
44Virtual Jaguar v2.1.3 R1 GCC/Qt
45-------------------------------
46
47* BPM (Breapoint) now stop at the designated address and no longer stop after executing the code
48* Added SP (Stack) memory browser
49* User can change now the number of lines of disassembly displayed in the tracing window
50* User can turn on/off the op-codes associated in the disassembly lines displayed in the M68K tracing window
51* Added an emulator status window (GPU status, M68K debugger & tracking status)
52* Added a GPU disassembly tracing window - Display the current PC pointer
53* Added a DSP disassembly tracing window - Display the current PC pointer
54* Added possibility to change refresh rate of browser windows when emulation is launched
55* Display partial hardware labels (Internal Memory & Graphics sub-system address space) in the disassembly lines displayed in the M68K tracing window
56* User can turn on/off the hardware labels associated in the disassembly lines displayed in the M68K tracing window
57
58
59Virtual Jaguar v2.1.3 R0 GCC/Qt
60-------------------------------
61
62* New option --debugger
63* ELF format support
64* ELF debug symbol support
65* "Step Into" code function
66* Menus layout dedicated to the debugger
67* Added a dedicated main window for tracing (M68K)
68* Added a Debugger tab in the config tab
69
cf76e892
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70
71Virtual Jaguar v2.1.3 GCC/Qt
72----------------------------
73
74* Added interlaced mode handling. [Shamus]
75
76
77Virtual Jaguar v2.1.2 GCC/Qt
78----------------------------
79
80* Bugfix for catastrophic failure in Controller config dialog. Thanks to ggn for
81 reporting this! [Shamus]
82* Bugfix for non-English locales. Thanks to SCPCD for reporting! [Shamus]
83
84
85Virtual Jaguar v2.1.1 GCC/Qt
86----------------------------
87
88* Added controller profiles. What this means is that if you left your gamepad
89 behind and/or have a different one, VJ will let you create a controller
90 config for the new controller without destroying the old one. This also means
91 that if you have *no* controllers, you can still play VJ with the keyboard.
92 [Shamus]
93* Fixed a few problems with the DSP timing; as a result, the sound in Rayman
94 and the FACTS demo is correct now. [Shamus]
95* Removed toolbar from full screen mode. [Shamus]
96* Added analog inputs to gamepad support. [Shamus]
97* Fixed 6MB cartridge space access limitation. 6MB carts should work now.
98 [Shamus]
99* Fixed problem with JERRY interrupts corrupting the M68K core. [Shamus]
100
101
102Virtual Jaguar v2.1.0 GCC/Qt
103----------------------------
104
105* Added gamepad support. [Shamus]
106* Added fullscreen option. [Shamus]
107* Added some more developer goodies to Alpine mode. [Shamus]
108* Re-added command line switches. [Shamus]
109* Moved JERRY into host audio IRQ. This should make sound much smoother, though
110 it may run ahead of the rest of the emulator. [Shamus]
111* Kludged a fix into the audio handler to set the correct frequency for audio
112 playback. Note that there could still be problems with this approach, as it
113 can be easily fooled. Thanks to Dr. Typo for the initial analysis and insight
114 into this bug. :-) [Shamus]
115* Preliminary fixes for proper emulation of memory reads between $200000 and
116 $800000. [Shamus]
117* Proper handling in the OP of objects with 0 IWIDTH. [Shamus]
118
119
120Virtual Jaguar v2.0.2 GCC/Qt
121----------------------------
122
123* Fixed problem on OP with 24BPP bitmaps. [Shamus]
124* Cosmetic GUI fixes. [Shamus]
125* Switched to UAE 68000 CPU core. [Shamus]
126* Fixed some RISC STORE and LOAD alignment issues. Still need to verify against
127 real hardware. [Shamus]
128* Fixed video frame timing for both NTSC *and* PAL. [Shamus]
129* Improved OP logging, added emulation of OP bug. [Shamus]
130* Fixed addressing bug with UAE 68000 core. [Shamus]
131
132
133Virtual Jaguar v2.0.1 GCC/Qt
134----------------------------
135
136* Fixed NTSC timings; they were hardwired to PAL rates. [Shamus]
137* Fixed possible missing trailing slash on path fields input by user. [Shamus]
138* Fixed exit hotkey to work on Win32. [Shamus]
139* Changed PAL/NTSC switch to only work when virtual machine is powered off.
140 [Shamus]
141* Miscellaneous documentation fixes. [Shamus]
142
143
144Virtual Jaguar v2.0.0 GCC/Qt
145----------------------------
146
147* Switched GUI to Qt. And there was much rejoicing. ;-) [Shamus]
148* Added detection code to fish out files from inside ZIP archives. What this
149 means is that now you can have other goodies inside of your ROM ZIP like
150 labels, box art, and overlays. See built-in help for details. [Shamus]
151* Various usability improvements, too many to list here. ;-) [Shamus]
152* Various compatibility improvements to the Jaguar core, too many to list
153 here. ;-) [Shamus]
154
155
156Virtual Jaguar v1.1.0 GCC/SDL (r299 - Never officially released)
157----------------------------------------------------------------
158
159* Switched OpenGL rendering to 32 BPP. This is not only how a real Jaguar
160 renders graphics, but it also gives VJ a nice speed boost. ;-) [Shamus]
161* Changed execution to a time-based solution so that timers and IRQs and
162 such can happen when they're supposed to. [Shamus]
163* Fixed blitter writes so that Intensity[0-3] and Z[0-3] are written in the
164 correct order. [Shamus]
165* Major rewrite of blitter to conform the the TOM ASIC nets. This should fix a
166 bunch of stuff that wasn't working correctly before. [Shamus]
167* Fixed writes to 64 bit blitter registers. [Shamus]
168* Refactored GUI to be more maintainable, better looking and more responsive.
169 [Shamus]
170
171
172Virtual Jaguar v1.0.7 GCC/SDL
173-----------------------------
174
175* Various fixes to make for smoother compilation on MacOS. [Adam Green]
176* Fixes to filetype parsing. VJ now properly recognizes .abs, .jag, .rom,
177 and .j64 files--be sure to check the README for the gory details! [Shamus]
178* Added a kludge to allow homebrew demos to run without a Stubulator ROM and
179 without crashing the emulator. [Shamus]
180* Fixed a blitter intensity addition problem. This fixes the title in Hover
181 Strike and the road/shadows in Checkered Flag. [Shamus]
182* Partially fixed a problem with the SUBC opcode in the RISC processors. This
183 allows Hover Strike, Phase Zero and Fight For Life to boot into their title
184 screens and makes them somewhat playable. [Shamus]
185* Fixed a horizontal scaling problem in the OP and the off-by-one bug that it
186 reintroduced. This fixes the road in Atari Karts and probably a few others.
187 [Shamus]
188* Fixed a long standing blitter bug that kept certain doors in AvP from
189 rendering correctly. [Shamus]
190* Fixed some vertical positioning bugs in the OP. Now Checkered Flag, Alien
191 vs Predator and probably others now work as they should (graphically ;-)
192 [Caz]
193* Better GUI support. Most options in the GUI work now, and more are expected
194 to be functional in the near future. [Shamus]
195* Fixed a few more lingering blitter bugs (there are more to be found). This
196 fixes most of the glitches in Cybermorph and Alien vs Predator. [Shamus]
197* Fixed an Object Processor scaled bitmap bug that caused incorrect
198 positioning of scaled bitmaps that started outside the line buffer, and
199 also fixed a problem that caused the OP to hang in certain situations. This
200 fixes Bubsy, International Sensible Soccer, and probably a few others.
201 [Shamus]
202* Cleaned up various bits of video rendering related code. [nwagenaar]
203* Added support for OpenGL textures with a depth of 16bpp, 24bpp or 32bpp.
204 [nwagenaar]
205* Rewrote several OpenGL related rendering code concerning the new OpenGL
206 texture depths and texture sizes. [nwagenaar]
207* Rewrote several OpenGL rendering functions concerning speed related items.
208 [nwagenaar]
209* Several bugs resolved due to OpenGL and normal rendering code. [nwagenaar]
210* Default resolution for OpenGL is now 640x480. [nwagenaar]
211
212
213Virtual Jaguar v1.0.6 GCC/SDL
214-----------------------------
215
216* Added support for gzipped ROM files. [Adam Green]
217* Added OpenGL support. Because of this, aspect ratios in the various
218 graphic modes should be correct now. Thanks goes to Niels for enlightenment
219 in this area. :-) [Shamus]
220* Moved all platform specific video code to video.cpp. This should make it
221 easier to add functionality to the video subsystem without having to chase
222 code around in places where it didn't belong. [Shamus]
223* Key bindings are now customizable. [Shamus]
224* VJ now uses a config file (vj.cfg) for commonly used settings. Settings in
225 the config file can still be overridden by command line switches. [Shamus]
226* Preliminary GUI mouse support. [Shamus]
227* Fixed an off-by-one bug in the Object Processor when dealing with scaled
228 bitmap objects. [Shamus]
229* Fully virtualized screen size. What this means is that we can keep the
230 Jagaur screen displayed in a convenient size (320 x 240) and the graphics
231 that various ROMs display will now be properly centered (more or less, they
232 were really centered for a TV display). [Shamus]
233* Border color is now displayed properly. [Shamus]
234* Fully pipelined DSP core. Because of this, Wolfenstein 3D now has sound. To
235 use the old core, use the -nopipeline switch. [Shamus]
236
237
238Virtual Jaguar v1.0.5 GCC/SDL
239-----------------------------
240
241* Various fixes to the codebase so that it compiles and works properly on
242 Linux. :-) The makefiles are almost identical now, the only thing that's
243 different between them are the SYSTYPE and EXESUFFIX variables defined at
244 the top. [Shamus]
245* Fixed a pernicious blitter bug that kept Rayman from doing proper collision
246 detection. [Shamus]
247* Added a simple file selector so that typing in long filenames in order to
248 run the emulator is no longer necessary. :-) To use it, instead of
249 supplying a ROM name, simply put in the name of the directory where your
250 ROMs live. [Shamus]
251* Removed all the assembly language code from the DSP, so it should be a
252 little less buggy now. Also, removed some brain-dead timeslice releasing
253 that was causing a bunch of problems with various ROMs. [Shamus]
254* Added sound support! In order to hear any sound, you probably have to
255 start VJ with the -dspon switch. Also, unless you have a very fast computer
256 the sound is going to be choppy. Hopefully future optimizations will cure
257 this. ;-) [Shamus]
258* Added GUI support. You can see the results by hitting the TAB key while the
259 emulator is running. ;-) [Shamus]
260* Lots of cleanups to the source code including the ability to trace who
261 writes what to where. [Shamus]
262
263
264Virtual Jaguar v1.0.4 GCC/SDL - source only release
265---------------------------------------------------
266
267* Lots of bugfixes. [Shamus]
268* Jaguar BIOS now works properly and is used by default. BIOS failure was
269 due to a bug in the GPU (specifically in the SUBC and ADDC opcodes). To
270 override this behavior, use the -nobios switch. [Shamus]
271* Rewrote the OP code--mostly because it was pissing me off. ;-) Not
272 to mention that it was almost completely unmaintainable in its former
273 state and was just plain wrong in its implementation in many places.
274 Because of this, some RMW effects that were missing from AvP are present
275 now and leftover crud in scaled bitmaps in Rayman is gone now. ;-) [Shamus]
276* ZIP support! Now there is no longer any need to unzip ROMs (although if
277 you prefer to waste HD space, VJ will gladly accomodate you). The code to
278 support this is a pretty ugly hack, but it works and there are other fish
279 to fry at the moment. Also, ZLIB is now required to compile VJ. [Shamus]
280* Support for PD ROMs. Currently the only one that works at all is JagMania,
281 though as the hardware emulation gets better more PD ROMs will begin to
282 work. Note that you must use the -nobios switch for this to work. [Shamus]
283* Preliminary support for PAL Jaguar emulation. Default is NTSC. To use it,
284 use the -pal switch. [Shamus]
285* Support for DSP activation. The DSP is now *off* by default, since it
286 doesn't work properly yet. Use the -dspon switch to force the DSP on.
287 [Shamus]
288* Removed all hacks that were written to support a specific ROM from the OP
289 and GPU code (much more remains to be removed). Since the CRCs that were
290 calculated to support these hacks were done on byte swapped ROMs, they
291 weren't working anyway. Besides which, a hack means that you don't
292 understand the hardware properly and/or don't know how to write the code to
293 properly emulate the hardware. ;-) [Shamus]
294* Renamed the executable from the ridiculously named jag_em to the more
295 sensibly named vj. Note that the Jag_em.cpp file has also been changed to
296 reflect this name change. [Shamus]
297* Removed Aaron Giles 68K dissasembler in favor of the one included with the
298 Musashi core. It's there, why not use it? ;-) [Shamus]
299* Reordered the order of A, B, and C buttons to more accurately reflect their
300 respective positions on a real Jaguar controller. Also fixed a small bug that
301 kept the number pad from reporting the right numbers to the emulator. :-)
302 [Shamus]
303* Started to remove the !__PORT__ defintions from the source code. Since this
304 is supposed to be a portable emulator, we won't be using any MS specific
305 code anyway. [Shamus]
306* Fixed some problems with the blitter when doing clipping and bit expansion.
307 Also fixed (reintroduced?) a bug that existed in the real blitter HW (the
308 YADD1 bit in A2--fixes Tempest 2000). [Shamus]
309* Probably a bunch of other stuff that I've forgotten about. ;-) [Shamus]
310
311NOTE: Tested only on WIN32 platform! ;-)
312
313
314Virtual Jaguar v1.0.3 GCC/SDL - source only release
315---------------------------------------------------
316
317* Converted GNU assembly in the GPU core to C code -- Rayman and
318 Alien vs Predator work again. :-) [Shamus]
319* Removed closed source Starscream and replaced it with the open source
320 Musashi core. Because of this, VJ runs a little faster now. :-) [Shamus]
321* Various cleanups to the source files (still lots of work to do!). [Shamus]
322
323NOTE: Tested only on WIN32 platform!
324
325
3261.0.1 - 1.0.2 - Unreleased, mostly for testing/finding bugs
327-----------------------------------------------------------
328
329* Lots of stuff happened, but we can't remember any of it. :-)
330
331
332Virtual Jaguar v1.0.0 GCC/SDL - initial source release
333------------------------------------------------------
334
335* Converted VC++ assembly to standard GNU assembly.
336* Fixed small bugs in SDL related items (keyboard/graphics).
337* Added *some* optimalisations to the graphics sources.
338* Added joystick support (not tested).
339* Added joystick port support (not tested).
340* Added frameskip support.
341
342Source only release. Tested on BeOS, Linux, FreeBSD and WIN32.
343SOUND emulation was NOT done. Need help with this one :)
344
345
346SDLEMU (Niels Wagenaar & Caz) - http://sdlemu.ngemu.com