Orders:
00000	ha	halt
00001	mh	multiply
00010	ds	display
00011	id	identity check
00100	st	store
00110	ra	replace address
00111	rf	return from
01000	ca	clear and add
01001	ad	add
01010	cs	clear and subtract
01011	su	subtract
01100	et	extract
01110	ch	charactron display
01111	sm	subtract magnitudes
10000	tr	transfer
10001	tro	transfer out
10010	tn	transfer on negative
10011	tno	transfer on negative out
10100	md	memory address display
10101	sof	select operation field
10110	to	transfer on overflow
11000	cr	cycle right
11001	sr	shift right
11100	pr	print/punch
11110	ri	read in
11111	op	operate

MTC (earlier WWIA):
feb 1952: prototype considered (13 essential orders) (M-1402)
feb 1952: WW I 1/2 (M-1407)
M-1417
mar 1952: order code (M-1428)
mar 1952: control timing (M-1432)
apr 1952: more timing (M-1436)
may 1952: M-1475 mentions four-instruction order code by Reed (E-462)
may 1952: WWIA proposal reintroduced (M-1500)
jul 1952: block diagram/order code exploration (M-1547)
jul 1952: taylor's order code (M-1562)
jul 1952: time schedule (M-1566)
aug 1952: power supply (M-1592)
aug 1952: memory cores, circuits (M-1605)
aug 1952: shift counter agreed upon, instead of lower AR (M-1601)
aug 1952: physcial layout (M-1602)
aug 1952: register series delays (M-1611)
sep 1952: (M-1635)
nov 1952: M-1640
early march 1953: registers tested and sines and cosines are plotted (M-1887, M-1888)
early may 1953: core memory test

M-2134 MTC test program (source)
M-2678 MTC drawings file

DESIDERATA:
M-1881 Memory Test Computer: Guide to Coding and MTC Operation Code