Issues

• XTMax: could COM2: mouse be emulated on the Teensy's second USB port?

  MicroCoreLabs/Projects#60 · Filter by author pawosm-arm opened on Aug 25, 2026

• XTMax: every DOS program using EMS crashes 4DOS 8.0 (or any TSR which allocated a chunk of EMS)

  MicroCoreLabs/Projects#57 · Filter by author pawosm-arm opened on Aug 22, 2026
  25

• Interested in purchasing a ready-made EPROM Emulator unit

  MicroCoreLabs/Projects#56 · Filter by author krn-sistemi opened on May 27, 2026

• XTMax documentation

  MicroCoreLabs/Projects#54 · Filter by author eparadis opened on May 8, 2026
  4

• MCL86 DIV instruction issue

  MicroCoreLabs/Projects#53 · Filter by author jsmolina opened on May 5, 2026
  1

• Keyboard Error When Using XTMAX

  MicroCoreLabs/Projects#52 · Filter by author sw8496 opened on May 3, 2026
  1

• MCL6809 project: bug in ANDCC and ORCC instructions

  MicroCoreLabs/Projects#51 · Filter by author Pieter56 opened on Feb 2, 2026
  1

• R800‑compatible version of MCLZ8 (kind-of 16bit CMOS Z80 found in last MSX machines) ?

  MicroCoreLabs/Projects#50 · Filter by author Sch-LikA opened on Jan 31, 2026
  1

• Will MCL86+ work on an IBM PC XT computer with an 8086 processor?

  MicroCoreLabs/Projects#48 · Filter by author amblogic opened on Dec 1, 2025

• Alternate versions XTMax

  MicroCoreLabs/Projects#46 · Filter by author realitytech opened on Oct 19, 2025
  2

• Error in M68000 test code : ignore it ... mem assumption is false (you can delete it)

  MicroCoreLabs/Projects#45 · Filter by author OulanB opened on Oct 17, 2025

• XTMax in a backplane as the 8086

  MicroCoreLabs/Projects#42 · Filter by author prozacgod opened on Jun 15, 2025

• ELKS

  MicroCoreLabs/Projects#41 · Filter by author toncho11 opened on May 10, 2025
  1

• 65816?

  MicroCoreLabs/Projects#29 · Filter by author xlar54 opened on Dec 30, 2024
  1

• MCL64 - checking a good c64 report some errors on rams and kernal char rom

  MicroCoreLabs/Projects#26 · Filter by author znarF54 opened on Jul 22, 2024
  1

• EPROM Emulator max size?

  MicroCoreLabs/Projects#25 · Filter by author muramasatheninja opened on Apr 25, 2024
  2

• Wheelwriter project, errors synthesizing

  MicroCoreLabs/Projects#23 · Filter by author johnwiggins opened on Sep 10, 2023
  2

• MCL64 in cartridge form?

  MicroCoreLabs/Projects#22 · Filter by author Barkfin opened on Sep 7, 2023
  1

• MCLZ8 - Faulty IR with DDCBnn46 (BIT 0, (IX+nn))

  MicroCoreLabs/Projects#21 · Filter by author hlide opened on Jul 18, 2023
  1

• Internal_RAM fixed to 256K for MCL86+?

  MicroCoreLabs/Projects#20 · Filter by author HeathenUK opened on Jun 26, 2023
  5

• ZEXALL on a Z80 machine - CRC errors

  MicroCoreLabs/Projects#17 · Filter by author hlide opened on May 1, 2023
  19

• Chip orientation? Black Screen.

  MicroCoreLabs/Projects#16 · Filter by author COREi64 opened on Apr 28, 2023
  10

• MCLZ8 issue with halt?

  MicroCoreLabs/Projects#15 · Filter by author lintweaker opened on Feb 25, 2023
  12

• MCLZ8 - Some opcodes should take 5 cycles (for instance, DJNZ) and not only 4 cycles in M-cycle M1

  MicroCoreLabs/Projects#11 · Filter by author hlide opened on Jan 31, 2023
  3

• MCLZ8 - Fetch_opcode() is wrongly used to retrieve immediate values, displacements or offsets in an instruction.

  MicroCoreLabs/Projects#10 · Filter by author hlide opened on Jan 24, 2023
  1