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DoctorWkt.pdp7-unix/src/cmd/ed1.s
Phil Budne 7495163182 add a comment for ".NL"
2016-03-21 11:00:19 -04:00

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"** 08-rest.pdf page 8
"[handwritten page number top right of scan - 1]
" ed1
lac d1
sys write; 1f; 3
lac o17
sys creat; tname
spa
sys save
dac sfo
sys open; tname; 0
spa
sys save
dac sfi
-1
tad lnodp
dac zermp
tad d1
dac zerop
dac dot
tad d1
dac eofp
dzm i eofp
dzm i zerop
dzm lastre
dzm fbuf
lac d1
dac dskadr
dac wrflg
dzm diskin
"o------------> [scan markup]
jmp advanc
1:
<ed>; <it>; 012
advanc:
jms rline
lac linep
dac tal
dzm adrflg
jms addres
jmp comand
-1
dac adrflg
lac addr
dac addr1
dac addr2
1:
lac char
sad o54
jmp 2f
sad o73
skp
jmp chkwrp
lac addr
dac dot
2:
jms addres
jmp error
lac addr2
dac addr1
lac addr
dac addr2
jmp 1b
"** 08-rest.pdf page 9
"[handwritten page number top right of scan - 2]
chkwrp:
-1
tad addr1
jms betwen; d1; addr2
jmp error
comand:
lac char " Get the character entered
sad o141
jmp ca " a command, append lines of text
sad o143
jmp cc " c command, change lines of text
sad o144
jmp cd " d command, delete lines of text
sad o160
jmp cp " p command, print lines of text
sad o161
jmp cq " q command, quit the editor
sad o162
jmp cr " r command, read in a file
sad o163
jmp cs " s command, substitute text
sad o167
jmp cw " w command, write out the file
sad o12
jmp cnl " newline
sad o75
jmp ceq " = command
jmp error " unrecognised, give an error
ca:
jms newline
jms setfl
lac addr2
dac dot
ca1:
jms rline
lac line
sad o56012 " . NL?
jmp advanc
jms append
jmp ca1
cc: cd:
jms newline
jms setdd
lac addr1
sad zerop
jmp error
dac dot
tad dm1
dac 9
lac addr2
dac 8
2:
lac i 8
dac i 9
sza
jmp 2b
"??? illegible line cut off - dac 0, lac 0, something else???
"** 08-rest.pdf page 10
"[handwritten page number top right of scan - 3]
dac eofp
lac char
sad o144
jmp advanc
-1
tad dot
dac dot
jmp ca1
cp:
jms newline
cp1:
jms setdd
lac addr1
sad zerop
jmp error
1:
lac addr1
dac dot
lac i addr1
jms gline
dac 2f
lac d1
sys write; line; 2: 0
lac addr1
sad addr1
jmp advanc
tad d1
dac addr1
jmp 1b
cq:
jms newline
lac adrflg
sza
jmp error
sys exit
cr:
jms setfl
lac addr2
dac dot
jms rname
"------------> [scan markup]
sys open; fbuf; 0
spa
jmp error
dac tfi
lac linep
dac tal
dzm num
1:
lac tfi
sys read; tbuf; 64
sza
jmp 2f
lac tfi
sys close
jms number
jmp advanc
2:
"??? illegible line cut off - cma, sma, something else?
"** 08-rest.pdf page 11
"[handwritten page number top right of scan - 4]
tad d1
rcl
dac c1
lac tbufp
dac tal1
2:
jms getsc; tal1
sna
jmp 3f
jms putsc; tal
isz num
sad o12
skp
jmp 3f
lac tal
add o400000
and o17777
cma
tad linep
cma
dac linsiz
jms append
lac linep
dac tal
3:
isz c1
jmp 2b
jmp 1b
cw:
jms setfl
lac i addr1
sna
jmp error
jms rname
lac o17
sys creat; fbuf
spa
jmp error
dac tfi
-128
dac c2
lac tbufp
dac tal1
dzm num
1:
lac i addr1
jms gline
rcl
cma
tad d1
dac c1
lac linep
dac tal
2:
jms getsc; tal
sna
jmp 3f
isz num
jmp putsc; tal1
isz c2 "???
"** 08-rest.pdf page 12
"[handwritten page number top right of scan - 5]
jmp 3f
lac tfi
sys write; tbuf; 64
-128
dac c2
lac tbufp
dac tal1
3:
isz c1
jmp 2b
lac addr1
sad addr2
jmp 1f
isz addr1
jmp 1b
1:
lac tal1
sma cla
jmp 1f
jms putsc; tal1
1:
-1
tad tbufp
cma
tad tal1
dac 1f
lac tfi
sys write; tbuf; 1: 0
lac tfi
sys close
jms number
jmp advanc
cnl:
lac adrflg
sna
jmp 1f
lac addr2
dac addr1
jmp cp1
1:
lac dot
tad d1
sad eofp
jmp error
dac dot
jmp cp1
ceq:
jms newline
jms setfl
lac addr2
dac dot
cma
tad zerop
cma
dac num
jms number
jmp advanc
setdd: 0
"** 08-rest.pdf page 13
"[handwritten page number top right of scan - 6]
lac adrflg
sza
jmp i setdd
lac dot
dac addr1
dac addr2
jmp i setdd
setfl: 0
lac adrflg
sza
jmp i setfl
lac zerop
tad d1
dac addr1
-1
tad eofp
dac addr2
jmp i setfl
newline: 0
jms getsc; tal " Get a character into tal
sad o12
jmp i newline " Return if a newline
jmp error " else an error
addres: 0
dzm minflg "..) [stray scan mark?]
-1
dac addr
ad1:
jms getsc; tal
ad2:
jms betwen; d47; d58
skp
jmp numb
sad o40 "[o40 circled in scan]
jmp ad1 "[hand drawn check mark follows operand in scan]
sad o11
jmp ad1 "[hand drawn check mark follows operand in scan]
"[check mark underlined in scan]
sad o55
jmp amin "[hand drawn check mark follows operand in scan]
sad o56
jmp adot "[hand drawn check mark follows operand in scan]
sad o53
jmp ad1 "[hand drawn check mark follows operand in scan]
sad o44
jmp adol "[hand drawn check mark follows operand in scan]
sad o57
jmp fsrch "[hand drawn check mark follows operand in scan]
sad o77
jmp bsrch "[hand drawn check mark follows operand in scan]
dac char
lac minflg
sza
jmp error
lac addr
sma
isz addres
jmp i addres
"** 08-rest.pdf page 14
"[handwritten page number top right of scan - 7]
adot:
lac minflg
sza
jmp error
lac addr
sma
jmp error
lac dot
dac addr
jmp ad1
adol:
lac minflg
sza
jmp error
lac addr
sma
jmp error
-1
tad eofp
dac addr
jmp ad1
amin:
-1
dac minflg
jmp ad1
numb:
dac char
sad o60
jmp 1f
lac d10
jmp 2f
1:
lac d8
2:
dac 2f
dzm num
1:
lac num
cll; mul; 2: 0
lacq
tad char
tad dm48
dac num
jms getsc; tal
dac char
jms betwen; d47; d58
skp
jmp 1b
lac minflg
sna
jmp 1f
-1
tad num
cma
dac num
dzm minflg
1:
lac addr
"** 08-rest.pdf page 15
"[handwritten page number top right of scan - 8]
spa
lac zerop
tad num
dac addr
jms betwen; zermp; eofp
jmp error
lac char
jmp ad2
number: 0
lac d100000
dac n1
law tbuf-1
dac 8
n0:
lac num
cll; idiv; n1: 0
dac num
lacq
tad d48
dac i 8
lac n1
cll; idiv; 10
lacq
dac n1
sza
jmp n0
lac o12
dac i 8
law tbuf-1
dac 8
dac 9
-5
dac n1
n2:
lac i 8
sad d48
skp
jmp n3
dzm i 9
isz n1
jmp n2
n3:
lac d1
sys write; tbuf; 7
jmp i number
rname: 0
lac fbufp
dac tal1
-8
dac c1
1:
jms getsc; tal
sad o40
jmp 1b
sad o12
jmp 1f
jms putsc; tal1
isz c1
jmp 1b
"** 08-rest.pdf page 16
"[handwritten page number top right of scan - 9]
jmp i rname
1:
lac tal1
sad fbufp
skp
jmp 1f
lac fbuf
sna
jmp error
jmp i rname
1:
lac o40
jms putsc; tal1
isz c1
jmp 1b
jmp i rname
gline: 0
dac glint1
jms getdsk
lac glint1 " [these 6 lines were surrounded by a box
and o17777 " that was Xed out with an arrow pointing to it]:
tad dskbfp " --
dac ital "|\/|
lac linep "|/\|<---
dac otal " --
1:
lac ital
sad edskbfp
skp
jmp 2f
lac diskin
tad d1024
jms getdsk
lac dskbfp
dac ital
2:
jms getsc; ital
jms putsc; otal
sad o12
skp
jmp 1b
lac otal
sma
jmp 1f
cla
jms putsc; otal
1:
lac linpm1
cma
tad otal
jmp i gline
rline: 0
lac linep
dac tal
1:
cla
sys read; char; 1
lac char
"** 08-rest.pdf page 17
"[handwritten page number top right of scan - 10]
lrss 9
jms esc
lac char
and o777
jms esc
jmp 1b
esc: 0
sna
jmp i esc
jms putsc; tal
sad o12
jmp 2f
sad o100
jmp 1f
sad o43
skp
jmp i esc
-1
tad tal
dac tal
and o17777
sad linpm1
jmp 1f
jmp i esc
1:
lac linep
dac tal
jmp i esc
2:
lac tal
sma cla
jmp 1f
jms putsc; tal
1:
-1
tad linep
cma
tad tal
dac linsiz
jmp i rline
getsc: 0
lac i getsc
dac sctalp
isz getsc
lac i sctalp
dac sctal
add o400000
dac i sctal
ral
lac i sctal
szl
lrss 9
and o777
jmp i getsc
putsc: 0
and o777
"** 08-rest.pdf page 18
"[handwritten page number top right of scan - 11]
lmq
lac i putsc
dac sctalp
isz putsc
lac i sctalp
dac sctal
add o400000
dac i sctalp
sma cla
jmp 1f
llss 27
dac i sctal
lrss 9
jmp i putsc
1:
lac i sctal
and o777000
omq
dac i sctal
lacq
jmp i putsc
append: 0
-1
tad eofp
dac 8
cma
tad dot
dac apt1
1:
lac i 8
dac i 8
-3
tad 8
dac 8
isz apt1
jmp 1b
isz eofp
dzm i eofp
isz dot
jms addline
jmp i append
addline: 0
lac dskadr
dac i dot
jms getdsk "[line crossed out - scan markup]
-1
tad linsiz
cma
dac apt1
law line-1
dac 8
lac dskadr "[line crossed out - scan markup]
and o1777 "[line crossed out - scan markup]
tad dskbfp "[line crossed out - scan markup]
dac otal "[line crossed out - scan markup]
lac dskadr "[line crossed out - scan markup]
tad linsiz "[line crossed out - scan markup]
dac dskadr "[line crossed out - scan markup]
"** 08-rest.pdf page 19
"[handwritten page number top right of scan - 12]
1:
lac otal " [these 9 lines were surrounded by a box
sad edskbfp " that was Xed out]:
skp " --
jmp 2f "|\/|
lac diskin "|/\|
tad d1024 " --
jms getdsk "
lac dskbfp "
dac otal "
2: "[line crossed out - scan markup]
lac i 8
dac i otal "[line crossed out and a note that looks like *jms prtwrd*]
isz otal
dzm wrflg "[line crossed out - scan markup]
isz apt1
jmp 1b
jmp i addline
getdsk: 0 "[the entire getdsk procedure was surrounded
and o776000 " by a box that was Xed out]:
sad diskin " --
jmp i getdsk "|\/|
dac 2f "|/\|
lac wrflg " --
sza "
jmp 3f "
lac diskin "
dac 1f "
lac sfo "
sys seek; 1: 0; 0 "
lac sfo "
sys write; dskbuf; 1024 "
lac d1 "
dac wrflg "
3: "
lac 2f "
dac diskin "
lac sfi "
sys seek; 2: 0; 0 "
spa "
jmp i getdsk "
lac sfi "
sys read; dskbuf; 1024 "
jmp i getdsk "
betwen: 0
dac bett1
lac i betwen
dac bett2
isz betwen
lac i bett2
cma
tad bett1
spa
jmp 1f
lac i betwen
dac bett2
isz betwen
-1
tad i bett2
"** 08-rest.pdf page 20
"[handwritten page number top right of scan - 13]
cma
tad bett1
spa
1:
isz betwen
lac bett1
jmp i betwen
error:
lac d1
sys write; 1f; 1
jmp advanc
1:
077012
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