18apr90

	Fixed disassembly of cmpmi, movmi.  Length was not being
	adjusted according to the formula: (num - 1) * i.

	Fixed disassembly of movsui and movusi.  Formerly was
	disassebled with third argument like other format 8
	instructions.

	Separated expression parser from debugger.c into new file:
	express.c.  Added &, |, and ~ operators to expression syntax.

19apr90

	Changed ICU address in scsi.c from 0xffffffe0 to 0xfffffe00.

	Fixed bug: mov[x|z]bw disassembled as mov[x|z]bb.

	Updated comments in express.c.

	Mentioned, in help for scsi raw, read, and write commands,
	that scsi_adr should be a power of two.

20apr90

	Fixed SCSI pseudo-dma bug which caused last few bytes of read
	transfer to be lost.

	Uuencoded and posted new version: "Fri Apr 20 09:32:29 PDT 1990"

	In scsi.c rounded status and message buffer sizes up to 4 since
	pseudo-dma always transfers 4 bytes.

	New EPROM for me: "Sat Apr 21 13:25:26 PDT 1990".

23apr90

	When user program executes return, used to print wrong message
	because the wrong code was loaded in _isr_bpt in resume532.s.

	Split scsi.c into scsi_low.c and scsi_hi.c.  Added a device
	table to support unusual device features like non-extended SCSI
	commands and initialization commands.  Updated comments about
	pseudo-dma.

	For input line editting, made ^x equivalent to ^u and DEL
	equivalent to ^h.

25apr90

	Still printed wrong message when user program returned.  FAKE_TRAP
	in init532.c had wrong value.  Replaced with a more robust scheme
	using sizeof.

	Changed to direct-exception mode.

	New EPROM for me: "Wed Apr 25 08:59:02 PDT 1990"

26apr90

	Default drive did not work because of bad loop count in scsi_hi.c.
	Fixed it.

	Made "edit" more general so that it edits bytes, words, or doubles.

	Made "set" more general so that it can also set a byte, word, or
	double in memory.

24may90

	Jordan was getting error messages with his disk which evidently
	wants some command before the first read or write.  Made the
	default drive do a "test unit ready" and "re-zero unit" on
	initialization.

4jun90

	Per Ian Dall's request changed dblib.s, db_setbaud().

		old: movb    h'3,14(r2)      ; set RTS on
		new: movb    h'f,14(r2)      ; set RTS and DTR on

14jul90

	Handle BUSY SCSI status in scsi_hi.c -- insert delay.

28aug90

	In resume532.s had tbitb cfg_?,... with actual bit instead of bit
	position.  Made monitor fail on machine without FPU.

2Jul91
	(by Charles Rennolet) Commands were to allow direct access to 
	scsi tape.  Commands added are backup, restore, wrf, fsf, tread
	twrite, and rewind.

Aug91-Oct91

	(by Phil Nelson) Added the Autoboot code.  Commands include
	boot, images and partitions.

	Also, changed variable names scsi_adr to disk_adr, scsi_lun to
	tape_lun, scsi_tape_adr to tape_adr, and scsi_tape_lun to tape_lun.
	Changed command names for tape commands as follows:  wrf to wmark,
	fsf to fspace.  Changed backup and restore to use default addresses
	and to use a variable sized and position ram buffer for reads and
	writes.  They are specified by buf_adr and buf_size.

	Added a method to define DEFAULT_BAUD in the Makefile and have it
	override the default in the source of 9600.


5 NOV 91
	(by Phil Nelson) Changed the code to use BSD disk labels instead
	of the pc532 label designed by Phil Nelson.
