Failures

Things known to not work very well, or at all, but may in future :-

• Highway Encounter jumps straight into the "you've died" screen, although you can play it afterwards.
• Continental Raiders corrupts its font, although it does this on MEMU too.
• Some other games may have problems, but as a rule, if it works in MEMU, it works on REMEMOTECH.
• Some programs may be using keyboard reading code which does debouncing using delay loops. If so, running the system at faster than 4.166MHz may introduce noticable bounciness, and you may find you have to slow it back down again. The REMEMOTECH CP/M boot ROM has a fix for this, but I don't have fixes for arbitrary user programs.

Things which don't work, and may never work, and why :-

• CP/M programs which directly do low level disk configuration or disk I/O, directly to the hardware itself, such as FORMAT.COM, FRMSDX.COM, SIDFMT.COM (ie: FORMAT.COM renamed), RCHECK.COM and FDXB.COM.
• Programs which do direct access to the cassette tape ports, such as certain games loaders.
• Programs which depend on DART interrupts.