Handle number of M68K cycles used when tracing in debugger mode
[clinton/Virtual-Jaguar-Rx.git] / docs / WHATSNEW
1 Virtual Jaguar v2.1.3 R4 GCC/Qt
2 -------------------------------
3
4 * Fixed a crash legacy issue when emulator launches in Alpine mode without a valid rom
5 * Stability improvements for the DWARF information decoding, the all watch, and the debugger memory windows
6 * Improvements and fixes for the Heap allocation, the Alpine tab, the emulator status, Local & all Watch variables windows
7 * Debugger mode improvements, better source code file reading and ELF/DWARF structures decoding
8 * Breakpoint / alert box may now occur in case of writing at unknown memory location or in case of ROM writing
9 * UI modifications mostly for the debugger mode, key bindings, and icons
10 * Added screenshot & call stack window features, Jaguar model & BIOS configurations, and a source code files list viewer
11 * Added multiple breakpoints feature but only for M68K functions
12 * Added a Save Dump As... feature to save a memory zone to a file
13 * Added a cartdridge view menu to display cartdridge directory system and his files list
14 * Added some log information for the emulator initialisations
15 * Added search paths in case of missing DWARF directories information
16 * Added ELF sections check so a potential unknown section will stop, or not stop, the ELF structure decoding
17 * Minor misspellings fixes and text help update
18 * The -d command line option, dedicated to the debugger, has been renamed with -D
19 * Updates for the setup registries
20
21
22 Virtual Jaguar v2.1.3 R3 GCC/Qt
23 -------------------------------
24
25 * Added an Exception Vector Table browser window
26 * Modified the About window to update the credits list in a more appropriate way
27 * Fixed a crash when reading the DWARF information in the case of the DWARF2 format has not been used
28 * Added ui, alpine & debugger groups in the settings
29 * Added the possibility to erase settings
30 * Added the --es-all, --es-ui, --es-alpine & --es-debugger options to erase specific settings
31 * Added a key bindings tab and adapted the configuration dialog tabs
32 * Fixed a crash, in Release mode, when the HW labels setting is turn on
33 * Fixed the SP (Stack) window UI potential missing data
34 * Create a directory for EEPROMs (based on the EEPROMs setting) if it doesn't already exist
35 * Keep the scrollbar position in accordance of the M68K PC pointer
36 * Fixed a crash when DWARF information report a source line number exceeding the number of lines present in a source file
37 * Improved the .heap section detection to avoid a detection error
38 * Fixed a crash when DWARF information does references to missing source code files
39 * Added a Local browser window for local variables
40
41
42 Virtual Jaguar v2.1.3 R2 GCC/Qt
43 -------------------------------
44
45 * Added some error detections when reading the ELF executable file
46 * Added all hardware labels (based on the document scans from the Version 2.4 - June 7, 1995)
47 * "Step Over" code function for BSR/JSR functions
48 * Added the .debug_ranges detection to avoid a detection error
49 * DWARF format support
50 * Added an All Watch browser window for non-local variables
51 * Added a heap allocator browser window based on my own memory allocation functions
52 * Added additional 4 memory browser windows with address input based on hexa, decimal or symbol name
53 * Windows refreshing executed only if windows is visible
54 * Added a restart function
55 * Updated the About window to update the credits list
56 * Fixed (hacking) the display of the SP (Stack) memory browser
57 * Set the emulator in Halt mode when launched in alpine debug mode without a loaded rom
58 * Added some information in the --help/-h/-? option
59 * --debugger option no longer force the log file
60 * Added a --dram-max option to extend the DRAM size to 8MB
61 * Added the "enter" key support when setting the BPM (Breapoint)
62 * Save the windows positions, size and visibilities (show or hide) status
63
64
65 Virtual Jaguar v2.1.3 R1 GCC/Qt
66 -------------------------------
67
68 * BPM (Breapoint) now stop at the designated address and no longer stop after executing the code
69 * Added SP (Stack) memory browser
70 * User can change now the number of lines of disassembly displayed in the tracing window
71 * User can turn on/off the op-codes associated in the disassembly lines displayed in the M68K tracing window
72 * Added an emulator status window (GPU status, M68K debugger & tracking status)
73 * Added a GPU disassembly tracing window - Display the current PC pointer
74 * Added a DSP disassembly tracing window - Display the current PC pointer
75 * Added possibility to change refresh rate of browser windows when emulation is launched
76 * Display partial hardware labels (Internal Memory & Graphics sub-system address space) in the disassembly lines displayed in the M68K tracing window
77 * User can turn on/off the hardware labels associated in the disassembly lines displayed in the M68K tracing window
78
79
80 Virtual Jaguar v2.1.3 R0 GCC/Qt
81 -------------------------------
82
83 * New option --debugger
84 * ELF format support
85 * ELF debug symbol support
86 * "Step Into" code function
87 * Menus layout dedicated to the debugger
88 * Added a dedicated main window for tracing (M68K)
89 * Added a Debugger tab in the config tab
90
91
92 Virtual Jaguar v2.1.3 GCC/Qt
93 ----------------------------
94
95 * Added interlaced mode handling. [Shamus]
96
97
98 Virtual Jaguar v2.1.2 GCC/Qt
99 ----------------------------
100
101 * Bugfix for catastrophic failure in Controller config dialog. Thanks to ggn for
102 reporting this! [Shamus]
103 * Bugfix for non-English locales. Thanks to SCPCD for reporting! [Shamus]
104
105
106 Virtual Jaguar v2.1.1 GCC/Qt
107 ----------------------------
108
109 * Added controller profiles. What this means is that if you left your gamepad
110 behind and/or have a different one, VJ will let you create a controller
111 config for the new controller without destroying the old one. This also means
112 that if you have *no* controllers, you can still play VJ with the keyboard.
113 [Shamus]
114 * Fixed a few problems with the DSP timing; as a result, the sound in Rayman
115 and the FACTS demo is correct now. [Shamus]
116 * Removed toolbar from full screen mode. [Shamus]
117 * Added analog inputs to gamepad support. [Shamus]
118 * Fixed 6MB cartridge space access limitation. 6MB carts should work now.
119 [Shamus]
120 * Fixed problem with JERRY interrupts corrupting the M68K core. [Shamus]
121
122
123 Virtual Jaguar v2.1.0 GCC/Qt
124 ----------------------------
125
126 * Added gamepad support. [Shamus]
127 * Added fullscreen option. [Shamus]
128 * Added some more developer goodies to Alpine mode. [Shamus]
129 * Re-added command line switches. [Shamus]
130 * Moved JERRY into host audio IRQ. This should make sound much smoother, though
131 it may run ahead of the rest of the emulator. [Shamus]
132 * Kludged a fix into the audio handler to set the correct frequency for audio
133 playback. Note that there could still be problems with this approach, as it
134 can be easily fooled. Thanks to Dr. Typo for the initial analysis and insight
135 into this bug. :-) [Shamus]
136 * Preliminary fixes for proper emulation of memory reads between $200000 and
137 $800000. [Shamus]
138 * Proper handling in the OP of objects with 0 IWIDTH. [Shamus]
139
140
141 Virtual Jaguar v2.0.2 GCC/Qt
142 ----------------------------
143
144 * Fixed problem on OP with 24BPP bitmaps. [Shamus]
145 * Cosmetic GUI fixes. [Shamus]
146 * Switched to UAE 68000 CPU core. [Shamus]
147 * Fixed some RISC STORE and LOAD alignment issues. Still need to verify against
148 real hardware. [Shamus]
149 * Fixed video frame timing for both NTSC *and* PAL. [Shamus]
150 * Improved OP logging, added emulation of OP bug. [Shamus]
151 * Fixed addressing bug with UAE 68000 core. [Shamus]
152
153
154 Virtual Jaguar v2.0.1 GCC/Qt
155 ----------------------------
156
157 * Fixed NTSC timings; they were hardwired to PAL rates. [Shamus]
158 * Fixed possible missing trailing slash on path fields input by user. [Shamus]
159 * Fixed exit hotkey to work on Win32. [Shamus]
160 * Changed PAL/NTSC switch to only work when virtual machine is powered off.
161 [Shamus]
162 * Miscellaneous documentation fixes. [Shamus]
163
164
165 Virtual Jaguar v2.0.0 GCC/Qt
166 ----------------------------
167
168 * Switched GUI to Qt. And there was much rejoicing. ;-) [Shamus]
169 * Added detection code to fish out files from inside ZIP archives. What this
170 means is that now you can have other goodies inside of your ROM ZIP like
171 labels, box art, and overlays. See built-in help for details. [Shamus]
172 * Various usability improvements, too many to list here. ;-) [Shamus]
173 * Various compatibility improvements to the Jaguar core, too many to list
174 here. ;-) [Shamus]
175
176
177 Virtual Jaguar v1.1.0 GCC/SDL (r299 - Never officially released)
178 ----------------------------------------------------------------
179
180 * Switched OpenGL rendering to 32 BPP. This is not only how a real Jaguar
181 renders graphics, but it also gives VJ a nice speed boost. ;-) [Shamus]
182 * Changed execution to a time-based solution so that timers and IRQs and
183 such can happen when they're supposed to. [Shamus]
184 * Fixed blitter writes so that Intensity[0-3] and Z[0-3] are written in the
185 correct order. [Shamus]
186 * Major rewrite of blitter to conform the the TOM ASIC nets. This should fix a
187 bunch of stuff that wasn't working correctly before. [Shamus]
188 * Fixed writes to 64 bit blitter registers. [Shamus]
189 * Refactored GUI to be more maintainable, better looking and more responsive.
190 [Shamus]
191
192
193 Virtual Jaguar v1.0.7 GCC/SDL
194 -----------------------------
195
196 * Various fixes to make for smoother compilation on MacOS. [Adam Green]
197 * Fixes to filetype parsing. VJ now properly recognizes .abs, .jag, .rom,
198 and .j64 files--be sure to check the README for the gory details! [Shamus]
199 * Added a kludge to allow homebrew demos to run without a Stubulator ROM and
200 without crashing the emulator. [Shamus]
201 * Fixed a blitter intensity addition problem. This fixes the title in Hover
202 Strike and the road/shadows in Checkered Flag. [Shamus]
203 * Partially fixed a problem with the SUBC opcode in the RISC processors. This
204 allows Hover Strike, Phase Zero and Fight For Life to boot into their title
205 screens and makes them somewhat playable. [Shamus]
206 * Fixed a horizontal scaling problem in the OP and the off-by-one bug that it
207 reintroduced. This fixes the road in Atari Karts and probably a few others.
208 [Shamus]
209 * Fixed a long standing blitter bug that kept certain doors in AvP from
210 rendering correctly. [Shamus]
211 * Fixed some vertical positioning bugs in the OP. Now Checkered Flag, Alien
212 vs Predator and probably others now work as they should (graphically ;-)
213 [Caz]
214 * Better GUI support. Most options in the GUI work now, and more are expected
215 to be functional in the near future. [Shamus]
216 * Fixed a few more lingering blitter bugs (there are more to be found). This
217 fixes most of the glitches in Cybermorph and Alien vs Predator. [Shamus]
218 * Fixed an Object Processor scaled bitmap bug that caused incorrect
219 positioning of scaled bitmaps that started outside the line buffer, and
220 also fixed a problem that caused the OP to hang in certain situations. This
221 fixes Bubsy, International Sensible Soccer, and probably a few others.
222 [Shamus]
223 * Cleaned up various bits of video rendering related code. [nwagenaar]
224 * Added support for OpenGL textures with a depth of 16bpp, 24bpp or 32bpp.
225 [nwagenaar]
226 * Rewrote several OpenGL related rendering code concerning the new OpenGL
227 texture depths and texture sizes. [nwagenaar]
228 * Rewrote several OpenGL rendering functions concerning speed related items.
229 [nwagenaar]
230 * Several bugs resolved due to OpenGL and normal rendering code. [nwagenaar]
231 * Default resolution for OpenGL is now 640x480. [nwagenaar]
232
233
234 Virtual Jaguar v1.0.6 GCC/SDL
235 -----------------------------
236
237 * Added support for gzipped ROM files. [Adam Green]
238 * Added OpenGL support. Because of this, aspect ratios in the various
239 graphic modes should be correct now. Thanks goes to Niels for enlightenment
240 in this area. :-) [Shamus]
241 * Moved all platform specific video code to video.cpp. This should make it
242 easier to add functionality to the video subsystem without having to chase
243 code around in places where it didn't belong. [Shamus]
244 * Key bindings are now customizable. [Shamus]
245 * VJ now uses a config file (vj.cfg) for commonly used settings. Settings in
246 the config file can still be overridden by command line switches. [Shamus]
247 * Preliminary GUI mouse support. [Shamus]
248 * Fixed an off-by-one bug in the Object Processor when dealing with scaled
249 bitmap objects. [Shamus]
250 * Fully virtualized screen size. What this means is that we can keep the
251 Jagaur screen displayed in a convenient size (320 x 240) and the graphics
252 that various ROMs display will now be properly centered (more or less, they
253 were really centered for a TV display). [Shamus]
254 * Border color is now displayed properly. [Shamus]
255 * Fully pipelined DSP core. Because of this, Wolfenstein 3D now has sound. To
256 use the old core, use the -nopipeline switch. [Shamus]
257
258
259 Virtual Jaguar v1.0.5 GCC/SDL
260 -----------------------------
261
262 * Various fixes to the codebase so that it compiles and works properly on
263 Linux. :-) The makefiles are almost identical now, the only thing that's
264 different between them are the SYSTYPE and EXESUFFIX variables defined at
265 the top. [Shamus]
266 * Fixed a pernicious blitter bug that kept Rayman from doing proper collision
267 detection. [Shamus]
268 * Added a simple file selector so that typing in long filenames in order to
269 run the emulator is no longer necessary. :-) To use it, instead of
270 supplying a ROM name, simply put in the name of the directory where your
271 ROMs live. [Shamus]
272 * Removed all the assembly language code from the DSP, so it should be a
273 little less buggy now. Also, removed some brain-dead timeslice releasing
274 that was causing a bunch of problems with various ROMs. [Shamus]
275 * Added sound support! In order to hear any sound, you probably have to
276 start VJ with the -dspon switch. Also, unless you have a very fast computer
277 the sound is going to be choppy. Hopefully future optimizations will cure
278 this. ;-) [Shamus]
279 * Added GUI support. You can see the results by hitting the TAB key while the
280 emulator is running. ;-) [Shamus]
281 * Lots of cleanups to the source code including the ability to trace who
282 writes what to where. [Shamus]
283
284
285 Virtual Jaguar v1.0.4 GCC/SDL - source only release
286 ---------------------------------------------------
287
288 * Lots of bugfixes. [Shamus]
289 * Jaguar BIOS now works properly and is used by default. BIOS failure was
290 due to a bug in the GPU (specifically in the SUBC and ADDC opcodes). To
291 override this behavior, use the -nobios switch. [Shamus]
292 * Rewrote the OP code--mostly because it was pissing me off. ;-) Not
293 to mention that it was almost completely unmaintainable in its former
294 state and was just plain wrong in its implementation in many places.
295 Because of this, some RMW effects that were missing from AvP are present
296 now and leftover crud in scaled bitmaps in Rayman is gone now. ;-) [Shamus]
297 * ZIP support! Now there is no longer any need to unzip ROMs (although if
298 you prefer to waste HD space, VJ will gladly accomodate you). The code to
299 support this is a pretty ugly hack, but it works and there are other fish
300 to fry at the moment. Also, ZLIB is now required to compile VJ. [Shamus]
301 * Support for PD ROMs. Currently the only one that works at all is JagMania,
302 though as the hardware emulation gets better more PD ROMs will begin to
303 work. Note that you must use the -nobios switch for this to work. [Shamus]
304 * Preliminary support for PAL Jaguar emulation. Default is NTSC. To use it,
305 use the -pal switch. [Shamus]
306 * Support for DSP activation. The DSP is now *off* by default, since it
307 doesn't work properly yet. Use the -dspon switch to force the DSP on.
308 [Shamus]
309 * Removed all hacks that were written to support a specific ROM from the OP
310 and GPU code (much more remains to be removed). Since the CRCs that were
311 calculated to support these hacks were done on byte swapped ROMs, they
312 weren't working anyway. Besides which, a hack means that you don't
313 understand the hardware properly and/or don't know how to write the code to
314 properly emulate the hardware. ;-) [Shamus]
315 * Renamed the executable from the ridiculously named jag_em to the more
316 sensibly named vj. Note that the Jag_em.cpp file has also been changed to
317 reflect this name change. [Shamus]
318 * Removed Aaron Giles 68K dissasembler in favor of the one included with the
319 Musashi core. It's there, why not use it? ;-) [Shamus]
320 * Reordered the order of A, B, and C buttons to more accurately reflect their
321 respective positions on a real Jaguar controller. Also fixed a small bug that
322 kept the number pad from reporting the right numbers to the emulator. :-)
323 [Shamus]
324 * Started to remove the !__PORT__ defintions from the source code. Since this
325 is supposed to be a portable emulator, we won't be using any MS specific
326 code anyway. [Shamus]
327 * Fixed some problems with the blitter when doing clipping and bit expansion.
328 Also fixed (reintroduced?) a bug that existed in the real blitter HW (the
329 YADD1 bit in A2--fixes Tempest 2000). [Shamus]
330 * Probably a bunch of other stuff that I've forgotten about. ;-) [Shamus]
331
332 NOTE: Tested only on WIN32 platform! ;-)
333
334
335 Virtual Jaguar v1.0.3 GCC/SDL - source only release
336 ---------------------------------------------------
337
338 * Converted GNU assembly in the GPU core to C code -- Rayman and
339 Alien vs Predator work again. :-) [Shamus]
340 * Removed closed source Starscream and replaced it with the open source
341 Musashi core. Because of this, VJ runs a little faster now. :-) [Shamus]
342 * Various cleanups to the source files (still lots of work to do!). [Shamus]
343
344 NOTE: Tested only on WIN32 platform!
345
346
347 1.0.1 - 1.0.2 - Unreleased, mostly for testing/finding bugs
348 -----------------------------------------------------------
349
350 * Lots of stuff happened, but we can't remember any of it. :-)
351
352
353 Virtual Jaguar v1.0.0 GCC/SDL - initial source release
354 ------------------------------------------------------
355
356 * Converted VC++ assembly to standard GNU assembly.
357 * Fixed small bugs in SDL related items (keyboard/graphics).
358 * Added *some* optimalisations to the graphics sources.
359 * Added joystick support (not tested).
360 * Added joystick port support (not tested).
361 * Added frameskip support.
362
363 Source only release. Tested on BeOS, Linux, FreeBSD and WIN32.
364 SOUND emulation was NOT done. Need help with this one :)
365
366
367 SDLEMU (Niels Wagenaar & Caz) - http://sdlemu.ngemu.com