A discussion came up elsewhere[1] about avoiding the chance for a CPU crash during cartridge hot-swapping. I vaguely remembered that OAM DMA was used because it was less sensitive to sags than having the 6502 core running. However, because OAM and DMA have fewer than four letters, phpBB's built-in search treats both of those words as stopwords.
I encounter this all the time when trying to search for stuff here. It's pretty annoying, is there a technical reason for this or is it an arbitrary limitation?
Also, by the way, Google does give results when using that search query. I suspect one of the results may be the post you were looking for.
phpBB has limited options for how it can build a search index. Currently we are using MySQL Full Text searching, which by default is limited to 4 characters for performance reasons. Since I have been hosting the site for a year now and collected performance data over that time, I am willing to adjust this down to 3 characters and see how it impacts the overall performance of the server.
Searching "tapedump oam dma" will now give results
