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
|
subroutine intread4b
c ------------
c read binaire real*4
c ------------
c Copyright INRIA
INCLUDE '../stack.h'
integer mode(2),top2
logical opened
integer iadr,sadr
c
iadr(l)=l+l-1
sadr(l)=(l/2)+1
c
lw=lstk(top+1)
il=iadr(lstk(top))
if(lhs.ne.1) then
call error(41)
return
endif
iacces=0
mode(2)=0
if(rhs.eq.4) then
iacces=top
ilb=iadr(lstk(iacces))
if(istk(ilb+3).ne.0) then
err=top
call error(52)
return
endif
nb=istk(ilb+1)*istk(ilb+2)
lb=sadr(ilb+4)
top=top-1
rhs=rhs-1
mode(1)=-111
elseif(rhs.eq.3) then
mode(1)=-101
else
call error(39)
return
endif
c opening file
top2 = top
top = top-rhs+1
il=iadr(lstk(top))
call v2unit(top,mode,lunit,opened,ierr)
if(ierr.gt.0) return
c
if(lunit.eq.wte) then
call error(49)
return
endif
c
il=iadr(lstk(top2))
if(istk(il).ne.1) then
err=3
call error(53)
return
endif
if(istk(il+3).ne.0) then
err=3
call error(52)
return
endif
if(istk(il+1)*istk(il+2).ne.1) then
err=3
call error(89)
return
endif
l=sadr(il+4)
n=int(stk(l))
c
top2=top2-1
il=iadr(lstk(top2))
if(istk(il).ne.1) then
err=2
call error(53)
return
endif
if(istk(il+3).ne.0) then
err=2
call error(52)
return
endif
if(istk(il+1)*istk(il+2).ne.1) then
err=2
call error(89)
return
endif
l=sadr(il+4)
m=int(stk(l))
if(iacces.ne.0) then
if(m.ne.nb) then
call error(42)
return
endif
endif
c
il=iadr(lstk(top))
if(m.eq.0.or.n.le.0) then
istk(il)=1
istk(il+1)=0
istk(il+2)=0
istk(il+3)=0
lstk(top+1)=sadr(il+4)
if(.not.opened) call clunit(-lunit,buf,mode)
goto 999
endif
l=sadr(il+4)
istk(il)=1
istk(il+1)=m
istk(il+2)=n
istk(il+3)=0
ls=iadr(l)
if(m.gt.0) then
lw=l+m*n
if(iacces.ne.0) then
ilb=iadr(lw)
lw=sadr(ilb+nb)
endif
err=lw-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
endif
c
if(iacces.eq.0) then
c . sequential acces
if(m.gt.0) then
do 191 i=0,m-1
read(lunit,end=997,err=998) (sstk(ls+i+j*m),j=0,n-1)
191 continue
call rea2db(m*n,sstk(ls),-1,stk(l),-1)
else
i=-1
192 i=i+1
li=ls+n*i
err=sadr(li+n)-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
read(lunit,end=193,err=998) (sstk(li+j),j=0,n-1)
goto 192
193 m=i
lstk(top+1)=l+m*n
err=lstk(top+1)+m*n-lstk(bot)
if(err.gt.0) then
call error(17)
return
endif
l1=l+m*n
call rea2db(m*n,sstk(ls),1,stk(l1),1)
call mtran(stk(l1),n,stk(l),m,n,m)
istk(il+1)=m
endif
else
c . direct access
call entier(nb,stk(lb),istk(ilb))
do 194 i=0,m-1
read(lunit,rec=istk(ilb+i),err=998)
$ (sstk(ls+i+j*m),j=0,n-1)
194 continue
call rea2db(m*n,sstk(ls),-1,stk(l),-1)
endif
lstk(top+1)=l+m*n
if(.not.opened) call clunit(-lunit,buf,mode)
goto 999
c --------------
c erreur lecture
c --------------
c
997 err=i
call error(62)
if(.not.opened) call clunit(-lunit,buf,mode)
return
998 call error(49)
if(.not.opened) call clunit(-lunit,buf,mode)
return
c
999 return
end
|
