1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
|
subroutine i_e
include '../stack.h'
external memused
integer memused
integer iadr,sadr
c
iadr(l)=l+l-1
sadr(l)=(l/2)+1
c
c extraction
lw=lstk(top+1)
c
78 continue
if(rhs.gt.2) goto 85
il2=iadr(lstk(top))
if(istk(il2).lt.0) il2=iadr(istk(il2+1))
m2=istk(il2+1)
n2=istk(il2+2)
it2=istk(il2+3)
l2=il2+4
mn2=m2*n2
top=top-1
c
il1=iadr(lstk(top))
if(istk(il1).lt.0) il1=iadr(istk(il1+1))
m1=istk(il1+1)
n1=istk(il1+2)
it1=istk(il1+3)
l1=sadr(il1+4)
mn1=m1*n1
c arg2(arg1)
if (istk(il1).eq.0) then
call error(220)
return
endif
if(mn2.eq.0) then
c . arg2=[]
il1=iadr(lstk(top))
istk(il1)=1
istk(il1+1)=0
istk(il1+2)=0
istk(il1+3)=0
lstk(top+1)=sadr(il1+4)
goto 999
elseif(m2.lt.0) then
c . arg2=eye
call error(14)
return
elseif(m1.lt.0) then
c . arg2(:), just reshape to column vector
il1=iadr(lstk(top))
istk(il1)=istk(il2)
istk(il1+1)=mn2
istk(il1+2)=1
istk(il1+3)=istk(il2+3)
l1=il1+4
call gencopy(it2,mn2,istk(l2),1,istk(l1),1)
lstk(top+1)=sadr(l1+memused(it2,mn2))
goto 999
endif
c check and convert indices variable
call indxg(il1,mn2,ilr,mi,mx,lw,1)
if(err.gt.0) return
if(mx.gt.mn2) then
call error(21)
return
endif
79 if(mi.eq.0) then
c arg2([])
il1=iadr(lstk(top))
istk(il1)=1
istk(il1+1)=0
istk(il1+2)=0
istk(il1+3)=0
l1=sadr(il1+4)
lstk(top+1)=l1
goto 999
endif
c get memory for the result
il1=iadr(lstk(top))
l1=il1+4
if(ilr-1.le.l1+mi) then
lr=iadr(lw)
lw=sadr(lr+mi)
err=lw-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
else
lr=l1
endif
c perform extraction
call genextrac1(it2,mi,istk(ilr),istk(l2),istk(lr))
81 continue
c set output sizes
if (m2.eq.1.and.n2.eq.1.and.m1.gt.0) then
m = m1
n = min(n1,mi)
elseif (m2 .gt. 1.or.m1.lt.0) then
m = mi
n = 1
else
n = mi
m = 1
endif
c form resulting variable
istk(il1)=istk(il2)
istk(il1+1)=m
istk(il1+2)=n
istk(il1+3)=it2
if(lr.ne.l1) then
call gencopy(it2,mi,istk(lr),1,istk(l1),1)
lstk(top+1)=sadr(l1+memused(it2,mi))
endif
go to 999
c
c arg3(arg1,arg2)
85 if(rhs.gt.3) then
call error(36)
return
endif
c
il3=iadr(lstk(top))
if(istk(il3).lt.0) il3=iadr(istk(il3+1))
iv3=istk(il3)
m3=istk(il3+1)
n3=istk(il3+2)
it3=istk(il3+3)
l3=il3+4
mn3=m3*n3
top=top-1
c
il2=iadr(lstk(top))
if(istk(il2).lt.0) il2=iadr(istk(il2+1))
m2=istk(il2+1)
n2=istk(il2+2)
it2=istk(il2+3)
l2=sadr(il2+4)
mn2=m2*n2
top=top-1
c
il1=iadr(lstk(top))
if(istk(il1).lt.0) il1=iadr(istk(il1+1))
m1=istk(il1+1)
n1=istk(il1+2)
it1=istk(il1+3)
l1=sadr(il1+4)
mn1=m1*n1
if(mn3.eq.0) then
c . arg3=[]
il1=iadr(lstk(top))
istk(il1)=1
istk(il1+1)=0
istk(il1+2)=0
istk(il1+3)=0
lstk(top+1)=sadr(il1+4)
goto 999
elseif(m3.lt.0) then
c .arg3=eye
call error(14)
return
endif
c check and convert indices variables
call indxg(il1,m3,ili,mi,mxi,lw,1)
if(err.gt.0) return
if(mxi.gt.m3) then
call error(21)
return
endif
call indxg(il2,n3,ilj,nj,mxj,lw,1)
if(err.gt.0) return
if(mxj.gt.n3) then
call error(21)
return
endif
c
90 mn=mi*nj
if(mn.eq.0) then
c . arg1=[] or arg2=[]
il1=iadr(lstk(top))
istk(il1)=1
istk(il1+1)=0
istk(il1+2)=0
istk(il1+3)=0
lstk(top+1)=sadr(il1+4)
goto 999
endif
c get memory for the result
il1=iadr(lstk(top))
l1=il1+4
if(ili-1.le.l1+mi*nj) then
lr=iadr(lw)
lw=sadr(lr+mi*nj)
err=lw-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
else
c . the result may be installed at its final place
lr=l1
endif
c perform extraction
call genextrac2(it3,mi,nj,istk(ili),istk(ilj),istk(l3),
$ m3,istk(lr))
c form the resulting variable
istk(il1)=iv3
istk(il1+1)=mi
istk(il1+2)=nj
istk(il1+3)=it3
if(lr.ne.l1) then
call gencopy(it3,mn,istk(lr),1,istk(l1),1)
endif
lstk(top+1)=sadr(l1+memused(it3,mn))
go to 999
c
999 return
end
|
