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authorJoe Hunkeler <jhunkeler@gmail.com>2015-08-11 16:51:37 -0400
committerJoe Hunkeler <jhunkeler@gmail.com>2015-08-11 16:51:37 -0400
commit40e5a5811c6ffce9b0974e93cdd927cbcf60c157 (patch)
tree4464880c571602d54f6ae114729bf62a89518057 /unix/boot/spp/rpp/ratlibr/dsinit.r
downloadiraf-osx-40e5a5811c6ffce9b0974e93cdd927cbcf60c157.tar.gz
Repatch (from linux) of OSX IRAF
Diffstat (limited to 'unix/boot/spp/rpp/ratlibr/dsinit.r')
-rw-r--r--unix/boot/spp/rpp/ratlibr/dsinit.r29
1 files changed, 29 insertions, 0 deletions
diff --git a/unix/boot/spp/rpp/ratlibr/dsinit.r b/unix/boot/spp/rpp/ratlibr/dsinit.r
new file mode 100644
index 00000000..926390b3
--- /dev/null
+++ b/unix/boot/spp/rpp/ratlibr/dsinit.r
@@ -0,0 +1,29 @@
+include defs
+
+# dsinit --- initialize dynamic storage space to w words
+
+ subroutine dsinit (w)
+ integer w
+
+ DS_DECL(Mem, 1)
+
+ pointer t
+
+ if (w < 2 * DS_OHEAD + 2)
+ call error ("in dsinit: unreasonably small memory size.")
+
+ # set up avail list:
+ t = DS_AVAIL
+ Mem (t + DS_SIZE) = 0
+ Mem (t + DS_LINK) = DS_AVAIL + DS_OHEAD
+
+ # set up first block of space:
+ t = DS_AVAIL + DS_OHEAD
+ Mem (t + DS_SIZE) = w - DS_OHEAD - 1 # -1 for MEMEND
+ Mem (t + DS_LINK) = LAMBDA
+
+ # record end of memory:
+ Mem (DS_MEMEND) = w
+
+ return
+ end