DOSBox-X 0.83.23 (2022-02-28)

 DOS模擬器 DOSBox-X 發布新版，更新如下 :

• Fixed XGA accelerated rendering for ViRGE emulation
  and 24 bits/pixel display modes. Since Windows drivers
  insist on 24bpp, this is necessary for
  "Truecolor (24-bit)" to display and render correctly.
• dosbox.conf option "vesa vbe 1.2 modes are 32bpp" is
  now "true" "false" or "auto", where "auto" determines
  this setting based on which S3 chipset is being
  emulated. It seems the Windows drivers for ViRGE
  chipsets require 24bpp for truecolor modes, in fact,
  they do not even offer 32bpp as an option. Since
  the Windows 3.1/95/98 drivers use VESA BIOS calls to
  set video modes, this implies that the VESA BIOS on
  ViRGE cards are also making the base modes 24bpp rather
  than 32bpp. Note that the Windows drivers for older S3
  chipsets are perfectly happy to use 32bpp unless you
  select "16.7 million colors (1 Meg)" in Windows 3.1,
  which is the only option in those drivers to offer
  24bpp. To avoid grief with DOSBox-X users, "auto"
  is the default setting.
• Added basic S3 ViRGE XGA acceleration. It's enough for
  90% of the GDI functions in Windows 3.1 so far.
• Fixed S3 rectangle XGA accelerated pattern blit, when
  using display memory as the pattern mask source, to
  follow S3 Trio32/Trio64 documentation, instead of the
  DOSBox SVN educated guess, to resolve some edge cases
  where the wrong color is chosen to draw filled rectangles
  in Windows 3.1. This fixes the "basement" in Microsoft
  Creative Writer so that clicking around no longer leaves
  white boxes on the screen.
• Extend 256-color foreground/background color behavior
  from S3 86c928 to Vision864 and Vision868 as Windows
  95 behavior suggests they handle the hardware cursor
  the same way in 256-color mode.
• Extend "divide cursor X position by bytes per pixel"
  behavior from S3 86c928 to Vision864 and Vision868
  emulation as well, based on Windows 3.1 video driver
  behavior.
• Gravis Ultrasound: Most I/O registers except port 3x4
  are intended for 8-bit I/O. If 16-bit I/O occurs to
  such registers, handle as two 8-bit I/O cycles. I
  found something in the Demoscene (1997 demo "Atlantis,
  Deep Like A Sea") that uses a 16-bit I/O write to write
  current channel and register select in one write.
  Prior to this fix, there was no music other than quiet
  popping noises in DOSBox-X.
• Sound Blaster: Fixed DSP command 0x48 (Set DSP block
  transfer size) to accept block size as BYTES as
  standardized by Creative and convert to SAMPLES
  internally. This fixes stuttering voices in Freddy
  Pharkas when sbtype=sb16. (joncampbell123)
• Avoid crashes due to assertion failure when media
  keys are pressed (maron2000)
• Fix CD audio playback failure (cue + mp3) when
  trying to play from pregap sectors. (maron2000)
• Change default value of mt32.rate to 48kHz to match
  default value of mt32.analog option. (maron2000)
• Fix a buffer overflow issue in dos.cpp (maron2000)

https://github.com/joncampbell123/dosbox-x/releases