DDT debugging newbie guide

Notes where exec DDT differs from timesharing DDT.

Command	Timesharing DDT	Exec DDT
file`^K`	Start program without symbols loaded	N/A
`^Z`	Suspend program	N/A
◊P	Continue
◊`^K`	Load symbols	N/A
name◊J	Create job named name	N/A
◊L file	Load file into current job, including symbols	N/A
◊`^X`.	Kill current job	N/A
◊G	Run program from start
◊0G	Set PC to starting address	N/A
n◊B	Set breakpoint at n
◊B	Remove breakpoint at current location	Remove all breakpoints
◊nB	Address to breakpoint n information	Also removes breapoint n
.◊B	Set breakpoint at current location
.	Current location
◊.	Current value of PC
◊Q	Last printed quantity
n/	Open location n symbolically (show instructions and symbols)
/	Open ◊Q
`^J`	Open next location
^	Open previous location
n[	Open location n numerically
=	Print ◊Q numerically
_	Print ◊Q as a symbol
'	Print ◊Q as six SIXBIT characters
"	Print ◊Q as five ASCII characters
#	Print ◊Q as one ASCII character	N/A
`^N`	Single step	KS10 only
◊`^N`	Stop at next instruction (skip over calls)	Not on KS10