MESS v0.80

posted in Emulator Release by narvick on Mar 11th, 2004

The multiple system emulator MESS has had an update in wake of MAME v0.80. There's quite a lot new in this release, including a lot of new system drivers:
    New System Drivers Supported
  • [MSX] National CF-2000
  • [MSX] National CF-1200
  • [MSX] National CF-2700
  • [MSX] National CF-3000
  • [MSX] National FS-1300
  • [MSX2] Panasonic FS-A1
  • [MSX2] Panasonic FS-A1MK2


  • System Driver Changes
  • [APPLE2] Fixed double hires colors. (bug #494)
  • [ATARI] Miscellaneous cleanups, and implemented Atari 5200 joystick top triggers
  • [COCO3] Video timing fixes and cleanups; certain SockMaster demos run better now. Also, fixed a bug that caused problems if a cartridge was ran and then the emulation was restarted without a cartridge in the same session
  • [COCO3] Fixed a minor video glitch due to not properly updating a value when bit 7 of "FF9F was changed. (bug #359)
  • [PC] Complete 8237 DMA and 8253 PIT rewrites, and associated changes in the NEC765, 8259 PIC, FDC and HDC implementations. The new 8237 and 8253 implementations are cleaner and purer hardware emulations and should be more accurate. In the process, fixed a critical long standing bug in the PC floppy emulation and other bugs. (bugs #154, #430)
  • [PC] Hard disk controller enhancements; FreeDOS now boots
  • [MAC] Cleaned up the driver a bit; implemented natural keyboard support and configurable RAM
  • [SORDM5] Fixed Sord M5 .cas image loading


  • User Interface Changes
  • [Windows GUI] Fixed a bug by which BIOSless systems would not be filtered as available. (bug #516)
  • [Windows GUI] Fixed a stupid layout bug in the Miscellaneous properties tab. (bug #518)


  • Source Changes
  • The core is based on MAME v0.80. This incorporates all features of the update to this core
  • Minor tools reorg; tool build rules now moved into the main makefile, and the tools directory is no longer used
  • CHD will now be the standard harddrive format for MESS. As such, enhancements have been made to MESS's CHD support. Also, the PC driver has been converted over to use the new format and the old raw HD format is no longer supported. Additionally, the MAME hard disk manager (CHDMAN) is now distributed with MESS
  • Fixed a bug in which low resolution systems (specifically the Channel F and GameBoy) would not properly save screenshots. (bug #521)
  • WAV file code can now handle files where the format header is longer than 16 bytes
  • Identified a few rounding errors that caused some WAV files to not load in certain drivers
  • Added a floppy_identify() function to the floppy format code
Grab your copy at the MESS Emulators page