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0.4.1

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@640-KB 640-KB released this 22 Sep 13:55
· 26 commits to main since this release
4b675da

Version 0.4.1 Release - 09/12/25

Changelog:

  • Build configuration option settings (FEAT_BYTES) are encoded in the ROM binary at offset E057H
  • Option POST_VID_HGC to display "HGC" (Hercules) if detected instead of "MDA" on POST (disabled by default)
  • Option RAM_TEST_NONE to disable RAM testing and clear (disabled by default)
  • Option KB_BUF_BDA to use BDA-set KB buffer pointers at 40:80H, otherwise hard-coded offsets (disabled by default)
  • Fix: reset base address in FDC polling loop
  • Fix: light pen calculation error in CGA mode 6
  • FDC_IPL_SW enabled by default on 5150

ROM standard builds

Build Download Desc
Standard/Turbo 8088, V20 Supports Turbo (standard Ctrl-Alt-+ speed switching), best choice for most systems.
XT 5160 8088, V20 Best for standard 4.77MHz XT/5160 or clone PCs.
PC 5150 8088, V20 Supports cassette, 5150 motherboard, 640 KiB memory and option ROMs.
ST-12 8088, V20 Juko ST-12 / UNIQUE UX-12 / TD3300A chipset

Additional chipsets / platforms

Build Download Desc
micro_8088 / NuXT 8088 Hi: F800 32K high F800 image with RTC support for use with UFLASH.EXE
micro_8088 / NuXT V20 only Hi: F800 32K high F800 image with RTC support for use with UFLASH.EXE

NOTE: This is a minor release, where fixes only apply to issues related to very specific configurations and new options are disabled by default. For any other build types use the 0.4.0 releases.