481 lines
26 KiB
Plaintext
481 lines
26 KiB
Plaintext
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--------------------------------------------------------------------------------
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WHAT'S NEW?
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--------------------------------------------------------------------------------
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v1.33 <- v1.32
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* Joystick hat is now handled correctly.
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* Added bindings to switch between previous/next save slots.
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* Fixed joystick calibration issues.
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* Fixed ROM corruption when using Musashi. ROM was not actually read-only.
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* Fixed support for overlapping save RAM and ROM areas.
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* When only Musashi is compiled-in, ROM is not byteswapped anymore to
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improve performance.
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* Disabled automatic ROM checksum fix as it prevents a few ROMs from
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working correctly. Can still be done manually.
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* Debugger: fixed Musashi disassembler to avoid truncating values read
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from memory.
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* Debugger: removed dependency on Musashi. Debugger support can now be
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enabled without it, but it won't be able to disassemble M68K code when
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doing so.
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* Debugger: M68K debugging is now supported by all M68K cores (Musashi,
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StarScream and Cyclone).
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* Debugger: fixed Z80 endianness issue when displaying registers.
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* Improved Z80 BUSREQ/RESET IO read emulation to fix a few games that rely on
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prefetched PC data when reading these addresses.
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* Implemented word (16 bit) memory callbacks for CZ80 to improve performance.
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* Debugger: integrated dZ80, a Z80 disassembler.
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* Fixed interrupt mode 0 in CZ80, fixes sound issues in a few games.
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* Debugger: added full Z80 debugging support. It is supported by all Z80
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cores (MZ80, CZ80 and DrZ80).
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* Fixed CPU dump/restore routines which caused games to crash when switching
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between CPU emulators.
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* Fixed DrZ80 documentation about its Z80 state structure. Modified DGen
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accordingly to solve dump/restore issues.
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* Replaced bool_opengl_aspect with bool_aspect, which also forces scaling
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by the same amount in both directions.
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* Merged scaling and pre/postscale filters APIs. Crap TV filters and scalers
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(scale2x, hqx) now use a similar API. Makes things a lot simpler.
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* Added "stretch" filter to replace the basic scaler. As its name suggests,
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this filter can stretch the picture to fit the window size and is as fast
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as its predecessor. Useful when OpenGL cannot be used.
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* Since filters can be stacked, added two combinations: scale2x + stretch and
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hqx + stretch. Obviously slower than scale2x or hqx alone, but allows
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picture to fit the entire window while looking nicer than simply
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stretching it.
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* Refactored screen initialization, window size is now completely free and
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never modified by DGen/SDL (except during init).
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* Disabled save/restore when no ROM is loaded.
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* Added config_save and config_load commands.
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* Calibration screen is not a CTV filter anymore and is always available.
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* Added preliminary support for Sega Pico.
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* Added VGM dumping functionality (vgmdump command).
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* Fixed DAC data type for Cyclone (distorted sound due to improper type
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conversion).
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* Improved DAC rendering for much better sound quality (try Tiido's Tempo
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Theme ROM). The default sound rate is now 44100Hz instead of 22050Hz.
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* Added missing YM2612 and DAC information to save states.
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* Fixed pbm2df issues on Windows by open files in text mode.
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* Fixed bind_* commands to run only once.
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* Added support for key/joystick button combinations bindings. In short,
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pressing several buttons simultaneously to execute a command (such as
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quitting DGen/SDL) is now supported. See documentation.
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* Merged stopped and main events loops to remove some redundancy.
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* Added standard bindings for Pico pen.
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* Added mouse input support. Mouse buttons and axes can be bound like any
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other controller (also added mou_* variables similar to joy_* and key_*).
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* Fixed sound (re)initialization which sometimes caused sound to stop after
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loading a ROM.
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* Added various workarounds for fbcon (Linux's framebuffer). A common issue
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is screen blinking due to double buffering, now disabled by default.
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Inability to run as a normal user due to missing mouse input and hanging
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during SDL_SetVideoMode() are also worked around.
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* Usual bunch of miscellaneous bugfixes and improvements (libarchive API
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update, many compilation warnings and other issues introduced by recent
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changes).
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v1.32 <- v1.31
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* Debugger: the displayed instruction after hitting a breakpoint was wrong,
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this is now fixed.
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* Debugger: the disassembler doesn't assume instructions have a fixed size
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anymore.
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* Debugger: fixed breakpoints support.
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* Debugger: implemented the ability to step over multiple instructions.
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* Debugger: implemented set(b|w|l|r) comands to read/write memory and
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registers.
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* Debugger: added M68K instructions counter (can be displayed with the "reg"
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command).
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* Debugger: added M68K instructions tracing to display instructions while
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they are executed.
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* Debugger: other miscellaneous fixes (such as reverse-i-search flickering in
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linenoise).
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* Fixed 6-button emulation that wasn't working correctly.
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* OpenGL: enabled byte-swapping by default for 32-bit textures on big endian
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machines so users don't have to use bool_swab.
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* Fixed a crash (infinite loop) while exiting.
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* Imported Cyclone 68000 0.099, a highly optimized M68K core written in pure
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ARM assembly. It is much faster than Musashi, especially on low-spec
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machines such as the Raspberry Pi.
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* Imported DrZ80, a Z80 core also written in pure ARM assembly (from
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PicoDrive). A tiny bit faster than CZ80.
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* Fixed various crashes with Cyclone 68000 and DrZ80 which tend to choke on
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invalid code.
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* Cyclone 68000 and DrZ80 are now the default CPU emulators on ARM-based
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machines.
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* Fixed remaining CPU core switching bugs.
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* Implemented MJazz, a feature present in the original Win32 version of DGen.
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Enabling bool_mjazz initializes three FM chips instead of one. Each
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additional chip runs at twice the rate of the previous one, causing the
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MJazz sound effect.
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* Added autogen.sh to make everyone happier.
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* Updated Musashi to version 3.31. This new version fixes many games.
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* Made DGen/SDL more responsive on slow machines by checking input events
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after each dropped frame.
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* Double-buffering can now be disabled, useful on slow machines
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(bool_doublebuffer).
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* Added an optional separate thread (bool_screen_thread) for displaying
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frames. Only useful on slower machines where flipping video buffers takes
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time, especially when V-sync is enabled and doing so blocks DGen/SDL until
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the next frame without consuming CPU time (such as the case of Dispmanx on
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the Raspberry Pi when bool_doublebuffer is also enabled).
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* Optimized Musashi to access memory regions directly without going through
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callbacks. This idea was taken from Genesis Plus GX. Although not as fast
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as Cyclone 68000 on ARM, it is noticeably faster than before.
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* VDP: implemented VDP interrupts properly.
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* VDP: added the ability to switch VDP planes on and off
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(bool_vdp_hide_plane_a, bool_vdp_hide_plane_b, bool_vdp_hide_plane_w,
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bool_vdp_hide_sprites).
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* VDP: improved sprites priority bit handling to fix sprites glitches in a
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lot of games (Streets of Rage among others). This unfortunately makes
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emulation slower.
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* VDP: implemented sprites limitations (per-line, per-frame, dot overflow),
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and enhanced masking (DGen/SDL now passes Nemesis' sprite masking test
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ROM).
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* VDP: implemented sprites boxing, the ability to draw boxes around sprites
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for debugging purposes.
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* VDP: implemented 2-cell vertical column scrolling mode. This fixes video
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glitches in several games (i.e. Psycho Pinball, Gunstar Heroes, Sonic 3).
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* VDP: optimized tiles blitting (but it's hard to notice).
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* VDP: implemented sprite overflow and collision bits.
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* VDP: forced data offset from the name table to wrap at 8K to fix video
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glitches in some games (such as Dragon Slayer I & II).
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* Updated StarScream to version 0.26d (was previously 0.26a).
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* Joysticks support has been reworked. They are now managed like the
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keyboard, with similar names in the configuration file (joy_* instead of
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key_*). Because of this, some configuration variables have been removed and
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no longer work in DGen/SDL 1.32. Configuration files must be updated
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manually.
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* Implemented the ability to bind/unbind keys and joystick/joypad buttons to
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arbitrary commands using bind_* variables. This replaces the similar
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feature that only worked with joystick buttons.
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* "calibrate_js" has been renamed "calibrate" and now works with both
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keyboard and joystick events. Makes controllers configuration
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straightforward.
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* Implemented "bool_buttons" to display each pressed button in the status
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bar. Helpful when configuring buttons manually.
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* Documentation: updated manual pages for all of the above.
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* Documentation: more files have been converted to Doxygen.
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* Screenshot files names are now prefixed with the ROM name so they are
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easier to find.
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* Emulation bugfixes (code/address register cleared when writing a VDP
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register, randomization of unused BUSREQ bits, VDP reset).
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* Miscellaneous bugfixes (libarchive detection during configure, forced
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flushing of debugger output, autoconf fixes, missed video resize events
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during init).
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v1.31 <- v1.30
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* Joystick axes can now be configured for controllers with more than two.
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They can also be reversed.
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* Implemented command "calibrate_js" to configure joystick buttons
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interactively.
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* Fixed a bug in the debugger prompt handler.
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* Implemented FM2612 debugging support.
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* Refactored SDL keyboard handling.
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* Removed Linux-specific joystick code which no one uses (not even in
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Linux, where the SDL version has always been preferred).
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* Implemented the ability to bind arbitrary commands to joystick buttons.
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This makes DGen fully controllable from a joystick/joypad.
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* Implemented proper sprite masking. This fixes annoying priority glitches in
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a number of games.
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* Fixed half-submitted commands support in the VDP. This finally fixes the
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mangled EA logo.
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* Some code refactoring and documentation.
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* Improved region settings. The single "region" variable can be used to
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switch interactively from one region settings to another (identifier,
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resolution, PAL/NTSC mode and frame rate).
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* Improved region auto detection with the ability to specify a preference
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order ("str_region_order" variable).
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* Fixed other miscellaneous bugs (NASM on non-x86 targets, uninitialized
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variables, other warnings and errors).
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v1.30 <- v1.29
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* Screenshots can be taken either from the raw MD video output or the
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rendered screen (now the default) using bool_raw_screenshot.
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* Fixed 24 bpp (3 Bpp) video output on little endian machines. 15 bpp mode
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was also broken and has been fixed, even if no one use this.
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* Improved MinGW (Windows) support. There is now a -m option to prevent
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it from detaching from its console during startup.
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* Fixed buggy automatic info bar font size.
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* Internal debugging can be enabled with --enable-debug.
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* Major video initialization refactoring which among other things allows
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the screen to be reconfigured on the fly.
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* Improved archived ROMs support. DGen/SDL is now able to read ZIP files
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properly.
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* OpenGL: lower CPU usage somewhat using different texture parameters
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and dropping byte swapping support.
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* Support any number of ROMs on the command-line. DGen switches to the
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next one instead of exiting.
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* Implement a prompt to interactively configure DGen and issue commands
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(load and unload ROM files for instance, which was previously not
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possible). This prompt supports history, completion and line editing.
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* Keys can now be unbound using empty definitions.
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* Added RC variables for video Hz, PAL mode and region configuration.
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* Rendered screen is now scaled by a factor of 2 by default.
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* Fixed joystick issues. bool_joystick is also enabled by default.
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* The default ROM path can be configured using str_rom_path.
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* When OpenGL fails to initialize, DGen fallbacks to non-OpenGL instead
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of exiting.
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* Added CTV filter "swab" to replace bool_opengl_swap. It can be enabled
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using bool_swab.
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* Added volume control keys and RC variable int_volume.
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* Added bool_autoconf. This enables DGen to save its current configuration
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to dgenrc.auto before exiting. Editing dgenrc directly isn't necessary
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anymore.
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* Added splash screen so DGen has something other than a black screen to
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display when no ROM is loaded.
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* Added debugger support. This debugger fully supports M68K watch points,
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break points, memory dumping, registers dumping and disassembly, but can
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currently only dump Z80 registers. It's available when compiled with
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--enable-debugger and is triggered by pressing "`".
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* CTV filters can now be stacked. This stack is managed using the commands
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"ctv_push", "ctv_pop" and "ctv_none" at the prompt.
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* Added FPS counter. Can be enabled with bool_fps.
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* hqx: fixed 16 bpp and added 24 bpp support to hq2x, added 16 bpp and 24 bpp
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support to hq3x and hq4x. hqx has also been entirely refactored.
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* hqx initialization isn't done at startup anymore, only when hqx is enabled.
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* Added support for non-QWERTY keyboards. Keyboard symbols are now the same
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as those used in the configuration file. Non-ASCII symbols must be entered
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in UTF-8. The shift modifier cannot be used with keys that generate symbols
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anymore.
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* Imported scale2x filters. These filters are much faster than hqx and also
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look pretty nice. They are available for 15, 16 and 32 bpp.
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* Many other minor bugfixes as usual.
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v1.29 <- v1.28
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* Reduced CPU consumption.
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* Prevented CZ80 from crashing when handling invalid code.
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* OpenGL: added configuration option to force square textures.
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* OpenGL: fixed non-power of two texture size issue from v1.28.
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* Fixed save files to manage YM2612 timers properly.
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* Fixed the way files are opened relative to DGen's home directory.
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* YM2612 timers are now managed externally by DGen.
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* Removed unused support for M68KEM.
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* Refactored memory handling, frame generation and initialization routines.
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As a side effect, DGen can run more games now.
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* Fixed remaining bugs in Z80 and M68K hot swapping code.
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* Updated AUTHORS file.
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* Added BUGS file for unresolved emulation bugs.
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* Imported hqx filters. hq2x is available for 15/16 and 32 bit, hq3x and
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hq4x are only available for 32 bit modes.
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* Refactored graphics output functions. Filtering and scaling are now
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in separate functions and new filters can be added easily.
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* Improved joystick devices configuration.
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* Fixed ASM files to ensure non-executable stack on ELF targets.
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* Merged OpenGL and normal fonts to remove redundant code. There are now
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three fonts available: 7x5 (original OpenGL font), 8x13 and 16x26.
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* Fixed other minor bugs.
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v1.28 <- v1.27
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* ROM loader can now use libarchive when available for decompression. This
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replaces the previous system()-based implementation.
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* "tobin" has been renamed "dgen_tobin" and no longer has dependencies on
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SDL and other unnecessary libraries.
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* CZ80: fixed emulation bug ("weird sound") introduced just before the 1.27
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release.
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* Improved CZ80/MZ80 switching.
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* Improved save file handling. Z80 context and other important things are now
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stored. The format is mostly compatible with Gens v5 and save states can be
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exchanged between both emulators. Old save files are still supported.
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* YM2612: upgraded from version 0.35f to 1.4b, as found in Final Burn Alpha.
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Sound quality has improved as a result.
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* Improved sound buffer management again, a single buffer is now used with
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both channels instead of two separate buffers.
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* Removed 8-bit sound output format since it was useless and annoying to
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support with the new buffer.
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* Removed superfluous window resizing messages.
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* Game Genie codes can now be entered while in stopped mode to avoid crashes
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when more than one is needed at once. Also, DGen now supports RAM patching.
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* Corrected clock frequencies for YM2612 and SN76496, sound is pitched a bit
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higher than before.
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* Added region selection command-line option. This option reuses "-R"
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(realtime priority). In case this option isn't given, the default region
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used by DGen is now the first found in the ROM header. This option has no
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effect on PAL (50Hz) mode which needs to be enabled separately.
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* OpenGL: a single OpenGL texture (and subtexture) is now used instead of two
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smaller ones, thus removing some of the complexity.
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* Usual batch of miscellaneous bugfixes.
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v1.27 <- v1.26
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* Documentation clean-up, sample.dgenrc update.
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* Compilation fixes for MZ80.
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* When both Musashi and StarScream are available, default to Musashi since
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it provides better emulation.
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* Imported CZ80 0.91. This Z80 emulator is pure C and works better than the C
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version of MZ80. This means that on non-x86/32 bit hardware, games that
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previously didn't have sound now work properly (Sonic 2 for instance).
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Thanks to DGen PSP which implemented CZ80 first.
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* Modified CZ80 to work properly on big-endian machines.
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* When both CZ80 and MZ80 are available, CZ80 is now the default.
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* DGen can now be compiled without any external modules. MZ80, CZ80, Musashi
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and StarScream can all be disabled.
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* There's now a toggle key (F10 by default) to switch between MZ80, CZ80 or
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neither.
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* The Musashi/StarScream toggle key can now disable them both.
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* New rc variables for selecting default emulators.
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* FPS are now calculated every second for a more accurate message at exit.
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* Implemented bool_show_carthead.
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* Game Genie codes can now be entered interactively by pressing F9. They can
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also be disabled by re-entering them.
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* Various other fixes.
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v1.26 <- v1.25
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* Upgraded Musashi from 2.0 to 3.3.1. This version solves various emulation
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problems.
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* Reworked autoconf and automake scripts to improve readability and
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portability.
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* Added support for MinGW. DGen can now run in Windows.
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* Fixed messy border again, this time for all video color depths.
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* OpenGL: added bool_opengl_aspect to keep the original aspect ratio during
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resizing. This option is enabled by default.
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* Added support for 24 bpp (3 Bpp) mode.
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* Made Crap TV filters available for all architectures, color depths and
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OpenGL.
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* OpenGL: fixed GL_LINEAR support so it can be used again instead of
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GL_NEAREST, one can switch between them with bool_opengl_linear
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(enabled by default).
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* Refactored the main loop and SDL code for a smooth frame rate with an
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improved sound synchronization.
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* Made a wrapper to open and create files relative to user's home directory
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in a system-independant manner.
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* Fixed Z80 speed in NTSC mode, sound effects were abnormally high pitched.
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* Improved FPS counter.
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* Removed SIGALRM for improved portability.
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* OpenGL: now enabled by default when available.
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* MZ80: fixed segfault on reset.
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* OpenGL: use 16 bpp mode internally instead of 32, allow textures to be 16
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(default) or 32 bit with bool_opengl_32bit.
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* OpenGL: added bool_opengl_swap to byte-swap colors when the host computer
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endianness is not the same as the ouptut (possible with X11 sessions).
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* Screenshots are now generated from the internal video buffer as TARGA files
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so they are available in all modes (OpenGL or not) and depths (except 8 bpp,
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as usual). Their output directory is ~/.dgen/screenshots.
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* OpenGL: the message bar now spans both textures.
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* Improved stopped mode to be less easily unstopped and to avoid dropping
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frames. Also, it now accepts resizes and refreshes.
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* Added the -H option to tweak emulation speed. Can be used to run 50Hz games
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at 60Hz.
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v1.25 <- v1.24
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* Added 64 bits targets support, DGen can now run on those.
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* Minor fix for joystick/joypad when sizeof(int) != sizeof(long).
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* Fixed messy border issue (garbage on the right of the screen).
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* OpenGL: worked around the vertical dark line between textures.
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* OpenGL: the visible area now takes the entire window (except for the
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status line). No more borders.
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* OpenGL: the window can now be resized/rescaled at runtime.
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* Fixed bug in which SDL-specific fields in dgenrc were not taken into
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account when no command-line option was given.
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* Replaced dgenrc parser with a better one. It breaks compatibility a
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little with the previous version because special characters now need to
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be escaped or put between quotation marks.
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* Improved configure and Makefiles for proper SDL/OpenGL detection,
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better dependencies in parallel builds, NASM's presence on x86 targets
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which shouldn't be mandatory and various other things.
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* Fixed many crashes.
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* Removed many compilation warnings.
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v1.24 <- v1.23
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* Fixed compilation on GCC 4.
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v1.23 <- v1.22
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* Added fullscreen toggle, using Alt-Enter by default.
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* Added the ability to set modifiers on key bindings, using the prefixes
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"shift-", "ctrl-", "alt-", and "meta-".
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* When 'z' is pressed to stop emulation while running fullscreen, the screen
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is toggled into windowed mode until emulation resumes. (assuming SDL
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supports this on your platform)
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* Fixed some buffer overflows in the rc parser.
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- Fixed a minor bug in creating the .dgen directory framework upon first run.
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* NASM is now required on x86 platforms.
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- Fixed a possible problem in the configure script detecting NASM object
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format on non-ELF platforms.
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v1.22 <- v1.21
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* Fixed save RAM problems with some games that did not properly switch save
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RAM on/off, such as Shadowrun and Shining Force.
|
|
* Fixed SDL joystick code, thanks to Cameron Moore <cameron@unbeatenpath.net>.
|
|
* Fixed timing problems on FreeBSD and on very fast machines when playing with
|
|
sound. If you use FreeBSD, I suggest updating to the latest 4-STABLE
|
|
snapshot and rebuilding your kernel to get the best sound sync.
|
|
* Added OpenGL rendering mode, thanks to Andre Souza <asouza@olinux.com.br>.
|
|
See the '-G' option in the dgen(1) manpage or 'bool_opengl' in dgenrc(5)
|
|
in order to activate it.
|
|
* Added 'bool_fullscreen', 'int_scale', 'bool_opengl', 'int_opengl_width',
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|
and 'int_opengl_height' dgenrc fields, in order to allow fullscreen,
|
|
scaling, and OpenGL preferences to be set permanently in dgenrc.
|
|
|
|
v1.21 <- v1.20a
|
|
* Screenshot code added, courtesy of Allen Noe <psyclone42@geocities.com>.
|
|
The key_screenshot field in dgenrc sets the key that will make screenshots
|
|
happen. Its default is F12.
|
|
* MZ80 core updated to version 3.4. Sound in Aladdin and the Sonic games should
|
|
run at the correct speed now.
|
|
* Fixed a bug in the handling of handling saved state and RAM filenames, which
|
|
would result in saved state files being saved with a null filename.
|
|
- Added a '-s' switch, which will load the given saved state at startup.
|
|
* Added support for joystick through SDL for SDL 1.1.x.
|
|
- Fixed compilation problems with the gcc "2.96" on Redhat 7.x systems. Thanks
|
|
to Jeff Grady <jgrady@chimera.acm.jhu.edu>.
|
|
|
|
v1.20a <- 1.20
|
|
- Fixed a tiny problem that caused MMX to be improperly detected on some Linux
|
|
boxes.
|
|
|
|
v1.20 <- 1.18
|
|
* DGen now uses autoconf/automake, so compiling DGen is now as easy as
|
|
'./configure && make && make install'.
|
|
Because of this, though, you'll need to upgrade SDL to v1.0.1.
|
|
The new Autoconf scripts are still a bit experimental; if it seems broken
|
|
on your platform, try to fix it and send a patch.
|
|
- I rewrote and reorganized documentation to better fit the way Automake likes
|
|
to do things.
|
|
* Manpages are now available, for dgen(1) and dgenrc(5).
|
|
* If the normal window size is too small for you, you can now scale the window
|
|
with the new -X and -Y options.
|
|
|
|
v1.19 <- v1.18
|
|
- $%&($! Nothing was working!
|
|
|
|
v1.18 <- v1.17
|
|
* Enormous speed increase, thanks to the hard work of John Stiles, who also
|
|
has put all interrupt bugs to rest, finally.
|
|
* DGen works in FreeBSD! The included Makefile.config.FreeBSD should work
|
|
without modifications. You need the GNU make and EGCS ports, though.
|
|
* Demo record/play! You can record a demo of yourself playing a game with the
|
|
'-d DEMONAME' switch, i.e. "dgen -d foo.demo my_rom.smd". Then play it back
|
|
later with "dgen -D foo.demo my_rom.smd". Also, no verifaction checks are
|
|
done on the demos, so you can feed it arbitrary files and see what happens,
|
|
if you like. :)
|
|
|
|
v1.17 <- v1.16
|
|
* Save RAM implementation has been overhauled, so now games with overlapping
|
|
ROM and save RAM (like Phantasy Star IV and Sonic 3 + Knuckles) can save
|
|
games correctly. Many thanks to Steve Snake for helping me make this work
|
|
right.
|
|
* Crude PAL mode support, give the '-P' option to use it. Doesn't work very
|
|
well yet.
|
|
- I made some changes that should (hopefully) make DGen run properly on
|
|
big-endian platforms, but I don't have any way of testing it. If you have
|
|
a PowerPC, SPARC, or other big-endian system, give it a try and help me
|
|
iron out the wrinkles. :)
|
|
* Window is now emulated properly, so Herzog Zwei split-screen and other
|
|
little bugs should be fixed. Thanks again to Steve.
|
|
- A little bug that caused SDL to complain about not being able to
|
|
initialize sound, even if bool_sound was false in dgenrc, was fixed. This
|
|
should help all you folks without sound cards.
|
|
* Assembler tile rendering is now in place for the new raster effect engine.
|
|
A small but noticeable speed increase. :) [PKH]
|
|
* All the SDL-dependent stuff has been separated into the sdl/ directory,
|
|
and I wrote a little platform-dependent (pd) API so you can attach an
|
|
interface for your favorite Unix-like operating system and toolkit. :)
|
|
If you want to do a port to BeOS, MacOS X, QNX, etc. this should make your
|
|
life easier. I also hope to have raw Xlib and SVGAlib interfaces to replace
|
|
SDL, and thus require one less thing to download. :)
|
|
- Improved sound writing method, by Daniel Wislocki <wislocki@math.grin.edu>.
|
|
He says this improves flaky sound in 44kHz, and also fixes the problem of
|
|
the emulator being too fast. I have a very slow computer, so I have to take
|
|
his word for it. ;)
|
|
- I also removed most of the messages dgen makes (except for errors), so that
|
|
it is quieter. If you liked having all those messages, tell me and I'll put
|
|
them back in. ;)
|