variable/clm	print the value of the variable
		cnt	how many units
		length	(b,h,l) byte, halfword, longword
		format	(c,d,u,o,x,f,g,s,a,p,i,I)

linenumber?lm	print the value at the address
variable?lm

variable=lm	print the address of v or l, or the value n
linenumber=lm
number=lm

variable!value	set variable (char constants are 'character)

variable$m cnt	single step until modified, can be very slow
address:m cnt

func(...)/m	execute func(), print return value as m
number		set current line to number
count+(-)	advance (retreat) current line by count
/re		search forward for re
?re		search backward for re

line# a		announce when hit line# (proc:line#)
line# b cmds	breakpoint at b, execute cmds
B		print active breakpoints
line# c count	continue at line#, stop after count breakpoints
line# C count	same, reactivate signal that stopped program
line# d		delete breakpoint at line#
D		delete all breakpoints
e		edit procedure, file-name, or in directory/
line# g count	same, reactivate signal that stopped program
i		single step instructions
I		single step instructions, reactivate stop signal
k		kill the program being debugged
l		print last line executed
p		print current line
q		quit
count r args	run with give arguments, ignore count breakpoints
count R		run with past arguments, ignore count breakpoints
s count		single step count lines
S count		single step count lines, skip procedure calls
t		stack trace
T		top line of stack trace
level v		set verbose mode
w		print window around current line
x		print registers and current instruction
X		print current instruction
z		print current and next 9 lines, current becomes last printed