mbasic.com 5.21 corrupt in sd #5
Description
After building up a few of these, and also double-checking on the MBC2-V20 system, I have come to the conclusion that the version of mbasic.com is corrupt on the distribution disk. It would randomly cause crashes of the Z80 (and V20) systems, particularly running startrek.bas.
Running mbasic in DDT showed it outputting to various ports (including 0xf2) on init, so I suspect this was a "customized" version. The version on http://www.retroarchive.org/cpm/lang/lang.htm seems to be authoritative, and does not crash on any of my systems.