Fix previous opcode detection for LB and LBL. Fix disassembler for LBL (nw)
Oops. That was wrong. BU is always 0000 in LBL (nw)
(MESS) additional info for a bunch of titles. nw.
(MESS) psx.xml: logged data of the original bin+cue used for creating
CHDs. this shall be of help to remove bad dumps or keep good ones
when redumps become available. nw.

thanks to Haze for sending me these data when he was working on the list.
(MESS) pico.xml: new dumps added from Jpn and Korea [TeamEurope]
(MESS) vsmile_cart.xml: new dumps added [FatArnold, TeamEurope]
(MESS) pc98.xml: added some more disks. nw.
(MESS) victor9k: Floppy WIP. (nw)
(MESS) c8050: Floppy WIP. (nw)
Merge https://github.com/mamedev/mame