Update: Jazz 50G v1.251

http://users.ju.edu/hduong/files/jazz50g_may01_2012.zip

CHANGELOG:
v2012.05.01
o fixed ML label scanning bug for 80Bxx opcodes

v2012.03.30
o moved ED code to covered library


v2012.03.19
o switched to ROM 2.15 =BLKSWAP+ within misc/memory.s since
it does the same job (though different registers are used);
should not be a problem since it is only used by TOTEMPBOT?
which itself is only used by xDIS

o split Jazz into two libraries -- 992 and 993 to free up
Port 0 space (approx 25KB); still requires 20KB RAM to run
covered portions such as the assembler

o Fixed a minor bug in which BEEP2 opcode was being written
simply as BEEP (DIwrite4 replaced by DIwrite5)

o Minor bug fixes arising from SDIAG implementation and deep
sleep mode from within EC

.