2019.01.02
The latest beta build of Nintendulator, the Nintendo NES emulator.
– Overall:
- Adjusted code to use C++ memory allocation routines where possible.
- Added support for 64-bit builds.
- Various code cleanup and bugfixes.
– APU:
- Added separate logic for power-on and soft-reset events.
- Updated various counters to more closely match actual hardware behavior.
- Upgraded audio playback code to use DirectSound 8.0.
– CPU:
- Improved DMA emulation logic to properly handle both Sprite and PCM
operations happening concurrently.
- Removed all inline assembly for 64-bit support.
- Fixed interrupt timing for branch instructions without page crosses.
- Added a configuration setting to suppress Debug statements for
invalid opcodes.
- Added support for undefined opcodes AAC, ASR, ARR, ATX, and AXS.
– Controllers:
- Renamed Alternate Keyboard to Subor Keyboard
- Updated Family Basic and Subor Keyboards to support movie recording
and playback.
- Updated controllers to use Save/Load routines instead of exposing
their internal state as packed byte arrays.
- Updated Arkanoid paddles to support axis configuration and adjusted
range of valid positions.
- Added support for SNES Mouse.
- Fixed support for configuring POV triggers as axes versus buttons.
– Debugger:
- Updated CPU debugger and trace log output to include total elapsed
CPU cycles since reset.
- Improved breakpoint support to properly handle intermediate reads.
- Improved PPU debugger to only redraw pattern tables and sprites when
their corresponding palettes actually changed.
– Graphics:
- Added separate default palettes for each region.
- Improved fullscreen code to attempt to select a resolution which
matches your monitor’s aspect ratio.
- Fix a bug with Zapper emulation while in fullscreen mode.
- Added an alternative Playchoice-10 palette.
- Added a configuration setting for Playchoice-10 palettes to control
whether or not extra gray colors should be added at 1D/2D/3D.
- Fixed color emphasis to swap the Red/Green bits on PAL and Dendy.
- Updated NTSC palette generation.
- Added an option to horizontally stretch the window to produce the
correct aspect ratio.
– iNES Header Editor:
- Moved header editor into its own source file.
- Added support for editing NES 2.0 format fields.
– Mapper Interface:
- Updated Mapper Interface version from 3.7 to 3.9.
- Reordered several enumerated types to be more consistent.
- Added support for debug-safe read handlers which do not trigger side
effects.
- Improved handling of multiple DLLs supporting the same mapper.
– Main Program:
- Updated Winamp plugin to support Unicode.
- Added support for Hybrid (Dendy) timing – PAL’s 50Hz framerate, but
- NTSC’s CPU/PPU clock ratio and VBLANK length.
- Reorganized code for saving and loading configuration settings to be
- localized according to function.
- Increased maximum supported PRG RAM from 64KB to 1024KB.
- Increased maximum supported CHR RAM from 32KB to 256KB.
- Changed FDS disk writing to use a new file format which permits
tracking version numbers.
- Added full NES 2.0 format support.
- Reworked Savestate/Reset commands to avoid stopping and restarting
sound playback (and causing pops).
- Fixed debugger breakpoints to properly unacquire input devices.
- Fixed crash when exiting the program while in fullscreen mode.
- Added a Browse Save Files option to the File menu.
– PPU:
- Removed some unneeded optimizations that didn’t work with 64-bit and
weren’t beneficial with 32-bit anymore.
- Fixed pre-render scanline to reset vertical scroll bits for every
cycle in 280-304 instead of just the last one.
- Removed old non-accurate sprite evaluation logic.
- Fixed emulation of $2007 accesses during rendering and how they
affect the VRAM address.
- Added support for Vs. Unisystem PPUs returning special values from
the lower bits of $2002.
– Savestates:
- Updated savestate logic to better handle version differences.
– Mappers:
- Added support for NES 2.0 custom SRAM sizes
- Added support for various iNES mappers using CHR RAM when no ROM is
present.
- Updated MMC2 emulation for switching the lower CHR ROM bank.
- Updated IRQ counters for MMC3, MMC5, MMC6, VRC4, VRC6, VRC7, and
Tengen RAMBO-1.
- Updated MMC5 sound length counter timing and added support for
read-triggered PCM.
- Updated iNES mappers 1 and 4 to support NES 2.0 PRG RAM sizes.
- Updated iNES mapper 16 to support EEPROM saves, and added mapper 159
as a variant.
- Added iNES mapper 210 as a variant of mapper 19.
- Fixed iNES mappers 21, 22, 23, and 25 to properly reflect their
actual functionality.
- Improved compatibility for iNES mapper 185.
- Added support for NES-AN1ROM, HVC-FKROM, NES-PEEOROM, NES-SC1ROM,
- NES-SHROM, NES-SH1ROM, NES-SIROM, NES-SJROM, NES-SL2ROM,
- NES-SL3ROM, NES-SLRROM, NES-SMROM, NES-TBROM, NES-TEROM,
- NES-TKSROM, NES-TL2ROM, NES-TLSROM, NES-TNROM, NES-TQROM,
and NES-TVROM boards.
- Added support for iNES mappers 28, 31, 36, 48, 57, 72, 77, 82, 92,
101, 107, 152, 154, 155, 159, 165, 191, 192, 193, 194, 200, 201,
203, 205, 206, 207, 240, 242, and 245.
- Merged iNES mapper 151 (Extended Vs. Unisystem) into 75 (VRC1).
- Fixed NSF player to properly silence internal channels when changing
tracks.
http://www.qmtpro.com/~nes/nintendulator/