323 lines
14 KiB
Plaintext
323 lines
14 KiB
Plaintext
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GNUBOY CHANGES FILE -- detailed list of all changes made
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Each release is labelled with the date it appeared; unreleased
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versions are listed without a date stamp for purely historical
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reasons. When checking what's changed since the last release, be
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sure to look over intermediate unreleased versions as well.
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For an easy-to-read user-oriented list of major changes in each
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release, please refer to the file WHATSNEW.
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1.0.3
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fixed a typo in the SDL keymap file that kept . from working
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added support for binding keys to the ' key
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fixed bug related in nix.c's sys_checkdir that made it always demand writable
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fixed loader.c since it depended on this bug
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removed the literal newlines inside the copyright string in main.c
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removed some parentheses in save.c's macros
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(these were perfectly valid but caused problems with a broken compiler, lcc)
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added return-type prototypes for strdup since it's not always in string.h
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(many of the above were old bugfixes sent in by Damian M Gryski)
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added slow, primitive support for gzipped rom files
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(thanks to David Madore for the portable inflate code taken from his quine)
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various minor source cleanups
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more preliminary work on the fast register/himem io routines (not used yet)
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fixed HuC3 emulation, according to TGB's sources
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added hacks to work around HuC3's IR port not being implemented
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(Robopon Sun and Star now seem to run fine)
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fixed a few sound inconsistencies after loading a savestate
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various fixes to keybinding system and X11 keymap
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integrated Jonathan Gevaryahu's color filter
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added "gbamode" rcvar to unlock gba-only features in some cgb games
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(this has NOTHING to do with gba emulation!)
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fixed DMG sprite sorting code! it's now enabled by default
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reverted mistaken CGB wave pattern "fix" in 1.0.2
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don't always reset sound positions on sound init (is this correct?)
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1.0.2 (2001-09-18)
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fixed bugs in rc_setvar calls in sys_initpath
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fixed multiple definition of cpu struct in cpu.h
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corrected behavior of ch1 sweep function when freq is written during sweep
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emulated wave pattern corruption to fool "emulator-detectors"
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updated savestate code to handle these changes, incremented minor version
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(this should not affect compatibility with old savestates)
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fixed major bugs in sound channel 4
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perfected channel 4 output sequence to sound like a real Gameboy
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(much thanks goes out to Lord Nightmare for all his hard work on this!)
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default channel 3 square wave is no longer 4 octaves too high
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make DI cancel pending HALT...is this correct? (fixes Konami Collection #1)
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fixed reversed stereo channels
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tweaked frequency cutoff points that prevent aliasing
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corrected default wave pattern (noise) when running in dmg mode
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fixed sound reset bug that messed up pitch after pausing in Bubble Ghost
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added new sample palettes
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fixed major interrupt/HALT bug that kept Amazing Penguin from running
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fixed sound channel 3 length regiser (info in gbspec.txt is bogus)
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tweaked volume of channel 4
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removed FFL3 tile glitch from the known bugs in the README
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(it was caused by a bad dump and/or hacked rom, not a bug in gnuboy)
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added emulation of DMG STAT register write bug (causes interrupt)
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(this fixes Legend of Zerd and perhaps one or two other games)
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1.0.1 (2001-07-09)
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fixed problem in "make install" if dest dir doesn't exist
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cleaned up some compiler warnings
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fixed a problem with --bindir= not working in the autoconf process
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renamed several things from mingw32 to just plain windows
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fixed lots of keys that were still missing on the SDL port
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1.0.0 (2001-06-29)
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renamed Makefile.mingw32 to Makefile.win to be 8.3 filename friendly
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finally fixed up configure to work around broken gcc 2.96 on Redhat 7, et al
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added lots of new documentation
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added autoconf option to disable cpu-specific code generation
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minor improvements to matroxfb hardware scaling code
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cleaned up some old deprecated variables
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0.9.15
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various preparations for 1.0 release
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cleaned up nix.c to remove old code and prevent errors on some systems
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fixed Makefile.nix to be usable but minimal
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0.9.14
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changed default dmg palette to be less yellow
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changed default keybindings not to use modifier keys
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moved vid_begin to after doevents in emu.c
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(this should fix alt+enter fullscreen toggle not working on windows)
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changed --help, etc to use stdout rather than stderr
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auto-loading config files on a per-rom basis
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0.9.13 (2001-04-09)
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added matroxfb YUV scaling support
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moved lcd_refreshline from the 3->0 stat change to the 2->3 one
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(this fixes a slight visual glitch in Alleyway)
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experimental: no LYC=LY interrupt during VBLANK...?
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fixed emulation bug (RL/RR) in asm cpu core that broke Montezuma's Return
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fixed some minor bugs in the matrox scaler register settings
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fixed SWAP (HL) instruction in the asm core (fixes Pokemon Yellow)
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added more assembly language scalers for performance
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0.9.12 (2001-04-02)
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started adding HuC3 MBC support
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removed some code that was accidentally left in that broke dos/win builds
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fixed a bug in SDL joystick support -- thanks Ralf Hoffmann
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unused bits in VBK register should be 1, not 0 -- this broke Binary Chaos
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fixed bug that kept dmg palette from restoring properly after loading savestate
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integrated hardware YUV scaling w/SDL thanks to Magnus Damm
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SDL code now turns off fb.enabled when window is iconified
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HDMA timing correction back in 0.9.6 broke Wacky Races; it's disabled for now
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0.9.11 (2001-04-01)
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fixed bug that kept video mode setting from working with svgalib
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implemented program counter skip after STOP instruction (konami collections)
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fixed SDL hardware surface support -- thanks Dave Kiddell
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also fixed another bug in gnuboy graphics code related to that problem
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removed sdl_hwsurface rcvar (no longer needed)
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changed SDL code to use SDL_Flip rather than SDL_UpdateRect - much faster
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most ports now can auto-choose screen size for given scale if no vmode is given
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optional shm sync skipping for x11 -- boost performance but looses frames
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lots of new scaling stuff
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allow HDMA while LCDC is off -- fixes Worms Armageddon
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correct initial values for HDMA regs -- fixes first hang in Turok 3
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major timer fixes!! fixes second hang in Turok 3
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0.9.10 (2001-03-26)
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hopefully fixed issue with X header locations affecting some users
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rewrote refresh_* functions to be faster and more flexible
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added scale-by-two versions of the above, including super-fast asm versions
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implemented primitive but fully functional scale-by-two mode
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added vmode rcvar to set the video mode
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disabled dmg sprite sorting by default because it doesn't seem to work right
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removed deprecated rcvars from various display modules
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heavily updated README
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changed VBLANK timings slightly - seems to fix Daedalian Opus
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enlarged OSS dma output buffer slightly; this may reduce occurance of underruns
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cleaned up all warnings
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fixed bug that prevented reading from OAM
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fixed all compiler warnings except implicit functions
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found and fixed a few minor bugs in the process
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added spacebar to SDL keymap
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up to 16 joystick buttons are now supported w/linux and SDL
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added sdl_hwsurface rcvar to turn hardware surface back on
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added static palette mode
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quick and dirty hack to make super rc pro-am work
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fixed bug that made OAM unreadable
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0.9.9 (2001-03-23)
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removed some unused code from mingw32.c, fixed some bugs there too
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fixed a bad sound bug in sdl.c
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eliminated sound pops at startup with SDL
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eliminaed compiletime error about SDL_DISABLE on SDL ver < 1.1.8
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integrated new fully-thinlib-based DOS code from Matthew Conte
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added surface locking to SDL code; maybe this will fix windows+fullscreen?
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fixed serious bug in savestate loading (call mem_updatemap on load)
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new asm -- significant speed boosts for color games on older machines
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removed SDL_HWSURFACE from SDL code - this should fix fullscreen on windows
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disabled surface locking calls for now
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properly initialize default path on DOS
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added SDL_ANYFORMAT to SDL flags so we can natively support all color depths
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0.9.8 (2001-03-07)
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enabled support for dmg sprite sorting; not sure it works yet
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added "sprsort" rcvar to toggle this since it's usually not needed
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fixed a potential crash that could happen if sound init failed on dos
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added native SDL sound support
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fixed lots of bugs in the SDL port
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removed stupid sys_realtime() function in favor of the simple ANSI C time()
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roms can now be loaded from stdin by specifying - as the rom name
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removed lots of useless bloat from system interface modules
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take advantage of ANSI atexit() to simplify termination logic
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hide mouse cursor with SDL
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SDL fullscreen mode
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optional alt+enter fullscreen toggle for SDL
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SDL rcvars sdl_fullscreen and sdl_altenter to control these features
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changed bswapl to bswap in asm to make it work on mingw32
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added ram size code 05 for 4 banks, this seems to make Pokemon Crystal work
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backed out hack for Altered Space and W&W because it broke other games
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new code to make them work, hopefully this time it's right
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now we give an error on unknown rom/ram size to prevent crashing
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integrated Windows port by mewse
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0.9.7 (2001-02-27)
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added support for mono sound
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initial work on implementing sound blaster output on dos
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fixed envelope bug that made notes trail off (or amplify) too fast
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integrated dos sound support contributed by Matthew Conte using his thinlib
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added Matthew Conte to CREDITS
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tried to fix strange occasional keyboard misbehavior on dos
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build stripped binaries by default if debugging and profiling are off
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0.9.6
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updated the INSTALL file
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fixed something stupid that broke building SDL joystick support on non-Linux
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added Mattias Wadman to the CREDITS
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fixed VBLANK timing slightly; now altered space and wizards & warriors work
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reverted change; it breaks other games
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new trick that might fix things...
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fixed bug in command line parsing that kept --savename=- from working
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fixed warning in oss.c
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fixed an old bug in HDMA/HBLANK that only recently became apparent
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vesa support on dos is now working!
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0.9.5 (2001-02-22)
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added Ralf to the CREDITS, apologies for the prior omission
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show name from rom header in window title on X11 and SDL
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fixed bug that made highcolor screen flicker
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(this used to glitch sfalpha, but for some reason its ok now)
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updated README
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fixed cap on sound 3 frequency to eliminate bogus beeps
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began work on optimizing memory io in the C code
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updated HACKING slightly
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got new fast memory io functions integrated!
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moved all of high memory (registers, wave pattern, stack) to one array
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(eventually this will make memory io faster)
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changed savestate format, but old saves should still load fine
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(hopefully new format makes more sense)
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began implementing fast access to high memory
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discovered that low bits of the flags register don't exist
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optimized instruction emulation accordingly
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a few optimizations to the outer asm cpu loop
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fixed off-by-one error in C graphics code that made far right column blank
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added slow, experimental 24bpp (packed, unaligned) video support
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improved the configure script, now --without-* works
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use sdl-config instead of explicit -lpthread to support more systems
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removed stupid section directives from the asm
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got the asm cores working on dos!
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oss sound support *might* work on freebsd and openbsd now
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SDL joystick code has been integrated, but I haven't tested it
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fixed bug in new savestate code
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added David Lau to the CREDITS (SDL joystick support)
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GNU make should no longer be required to compile
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0.9.4 (2001-02-18)
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various changes to lots of the system interface organization
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separation of linux fb and keyboard handling code into two modules
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integrated linux joystick support contributed by Ralf Hoffmann
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dummy joystick code for systems without real support yet
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fixed HDMA; now DKC runs perfectly
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0.9.3
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explicit link of SDL target with -lpthread, tell me if this causes problems
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better cpu detection in configure script
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more big fixes in sweep, and now it's actually tested, so it SHOULD work (!)
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implemented default wave ram pattern
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added linux fbcon display support - very functional
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fix to allow new custom palette to take effect after loading dmg savestates
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0.9.2 (2001-02-12)
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mbc3 rtc support, including save and resync across sessions
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updated README
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implemented sound channel 4
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fixed yet another bug in sweep (!!)
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fixed nasty aliasing when sound frequency was higher than sample rate permits
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finally, all sound registers can be adjusted while sound is being produced
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made it so the proper shutdown functions actually get called on exit
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added SDL port by Damian M Gryski, should be auto-detected by configure
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added Damian to the CREDITS file
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cleaned up sound code to minimize the amount of state data kept
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added sound and rtc status to savestates; this won't break old saves
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changed lots of lookup tables to const
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0.9.1 (2001-02-11)
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fixed yet another critical bug in sweep
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fixed STAT interrupt bug
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added support for changing more sound params while sound is active
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fixed yet another major bug in envelope for channel 2
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fixed bug in HDMA, but DKC still fails
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updated README, HACKING
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made samplerate and sound (on/off) configurable rcvars
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changed command line parsing to make setting bools more intuitive
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added --showvars to list all available rcvars
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0.9.0
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fixed bugs in sweep and envelope functions
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added sound channel 3
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0.8.5
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various minor optimizations in the C code
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same in the i386 asm cpu core
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initial work on sound framework
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oss sound output for use on *nix
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dummy sound output for use on systems without sound
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sound channels 1 and 2
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0.8.4 (2001-02-06)
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updated README to cover new features
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fixed off-by-one-line visual error introduced in 0.8.2
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gbspec.txt is wrong, ram size code 0 != no ram, big suprise... (!)
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workaround for undocumented 512 byte ram size, won't necessarily work
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changes in saved state format
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slight improvements to asm cpu core
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cleaned up HDMA code
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removed outdated comments
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more changes to lcdc/cpu timing interaction, fixing harmless bugs
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this may slightly impact performance, i'll compensate later
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hopefully fixed bug in svgalib interface that corrupted console on exit
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updated HACKING to reflect new code, detail more internals
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workaround for a bug that would never happen but could lock the emulator
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fixed another visual glitch introduced in 0.8.2
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optimized i386 cpu.s to keep PC in a register at all times
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0.8.3
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changed install dir from $prefix/games to $prefix/bin
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fixed major bug in ramsize lookup table (!)
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updated HACKING to note that it's outdated
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implemented saved states!
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0.8.2 (2001-02-03)
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rewrote lcdc state behavior completely, fixed lots of compat issues
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implemented serial io failure for roms that need it, fixed more compat
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now, mk1, sml2, and alleyway are all fixed!
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additions to input.h and keytable.c to allow future joystick support
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0.8.1
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fixed stupid timer interrupt bug in asm cpu core
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renamed screen to fb so as not to conflict with allegro symbol names
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0.8.0 (2001-02-01)
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initial release
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