* Exercise 1.3.2'--18, Solution 1
|
* Exercise 1.3.2'--18, Solution 1
|
LOC #100
|
LOC #100
|
t IS $255
|
t IS $255
|
a00 GREG Data_Segment
|
a00 GREG Data_Segment
|
a10 GREG Data_Segment+8
|
a10 GREG Data_Segment+8
|
ij IS $0 % element index and return register
|
ij IS $0 % element index and return register
|
j GREG % column index
|
j GREG % column index
|
k GREG % size of list of minima
|
k GREG % size of list of minima
|
x GREG % current minimum
|
x GREG % current minimum
|
y GREG % current element
|
y GREG % current element
|
Saddle SET ij,9*8
|
Saddle SET ij,9*8
|
RowMin SET j,8
|
RowMin SET j,8
|
LDB x,a10,ij Candidate for row minimum
|
LDB x,a10,ij Candidate for row minimum
|
2H SET k,0 Set list empty.
|
2H SET k,0 Set list empty.
|
4H INCL k,1
|
4H INCL k,1
|
STB j,a00,k Put column index in list.
|
STB j,a00,k Put column index in list.
|
1H SUB ij,ij,1 Go left one.
|
1H SUB ij,ij,1 Go left one.
|
SUB j,j,1
|
SUB j,j,1
|
BZ j,ColMax Done with row?
|
BZ j,ColMax Done with row?
|
3H LDB y,a10,ij
|
3H LDB y,a10,ij
|
SUB t,x,y
|
SUB t,x,y
|
PBN t,1B Is \.x still minimum?
|
PBN t,1B Is \.x still minimum?
|
SET x,y
|
SET x,y
|
PBP t,2B New minimum?
|
PBP t,2B New minimum?
|
JMP 4B Remember another minimum.
|
JMP 4B Remember another minimum.
|
ColMax LDB $1,a00,k Get column from list.
|
ColMax LDB $1,a00,k Get column from list.
|
ADD j,$1,9*8-8
|
ADD j,$1,9*8-8
|
1H LDB y,a10,j
|
1H LDB y,a10,j
|
CMP t,x,y
|
CMP t,x,y
|
PBN t,No Is row min${}<{}$column element?
|
PBN t,No Is row min${}<{}$column element?
|
SUB j,j,8
|
SUB j,j,8
|
PBP j,1B Done with column?
|
PBP j,1B Done with column?
|
Yes ADD ij,ij,$1 Yes; $\.{ij}\gets{}$index of saddle.
|
Yes ADD ij,ij,$1 Yes; $\.{ij}\gets{}$index of saddle.
|
LDA ij,a10,ij
|
LDA ij,a10,ij
|
POP 1,0
|
POP 1,0
|
No SUB k,k,1 Is list empty?
|
No SUB k,k,1 Is list empty?
|
BP k,ColMax If not, try again.
|
BP k,ColMax If not, try again.
|
PBP ij,RowMin Have all rows been tried?
|
PBP ij,RowMin Have all rows been tried?
|
POP 1,0 Yes; $\$0=0$, no saddle.\quad\slug\endmmix
|
POP 1,0 Yes; $\$0=0$, no saddle.\quad\slug\endmmix
|
|
|
aaaa GREG 6364136223846793005 C E Haynes's multiplier
|
aaaa GREG 6364136223846793005 C E Haynes's multiplier
|
Main SET ij,9*8 assume that $1 = seed
|
Main SET ij,9*8 assume that $1 = seed
|
1H MULU $1,$1,aaaa
|
1H MULU $1,$1,aaaa
|
INCL $1,1
|
INCL $1,1
|
MULU x,$1,5
|
MULU x,$1,5
|
GET x,rH
|
GET x,rH
|
SUB x,x,2
|
SUB x,x,2
|
STB x,a10,ij
|
STB x,a10,ij
|
SUB ij,ij,1
|
SUB ij,ij,1
|
PBP ij,1B
|
PBP ij,1B
|
PUSHJ 2,Saddle
|
PUSHJ 2,Saddle
|
JMP Main
|
JMP Main
|
|
|
