src/musashi/LICENSE

Fri, 12 Apr 2013 12:34:32 +0100

author
Philip Pemberton <philpem@philpem.me.uk>
date
Fri, 12 Apr 2013 12:34:32 +0100
branch
experimental_memory_mapper_v2
changeset 140
1e4c45b144c4
parent 0
8bf1bf91a36d
permissions
-rw-r--r--

Fix read-after-write logic

In some cases (notably reading from a page after having written to it), the
mapper may change the pagestate from "accessed and written" ("dirty"; PS0,PS1)
to "accessed but not written" (clean; PS1,!PS0). This should never, ever, EVER
happen. Once a page is dirty, it remains so until the 68k clears the DIRTY
bit.

Once again, this wonderful bit of logic was missing from the TRM.

     1 From private email, dated 2010-Nov-26, 20:43 GMT:
     3 From: Karl Stenerud <kstenerud@gmail.com>
     4 Subject: Re: Musashi 68k emulator
     6 On 2010-11-26, at 12:36 PM, Philip Pemberton wrote:
     8 > > I do have one question, though more related to licensing than the core itself...
     9 > > 
    10 > > I was planning to release my emulator under an open-source licence, probably the GPL or something along those lines (the worst case scenario IMO would be someone adding a ton of nice features then refusing to release the source).
    11 > > 
    12 > > The "non-commercial use only" restriction in the Musashi license would seem to be at odds with the GPL, and would make it somewhat more difficult to tie in GPL-licensed libraries. Is there any possibility of getting v3.31 released under a less restrictive license, maybe GPL or LGPL?
    13 > > 
    15 Sure, no problem.  I usually release stuff under an Apache license nowadays, but feel free to pick any FOSS license.