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| author | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
|---|---|---|
| committer | Joseph Hunkeler <jhunkeler@gmail.com> | 2015-07-08 20:46:52 -0400 |
| commit | fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 (patch) | |
| tree | bdda434976bc09c864f2e4fa6f16ba1952b1e555 /unix/boot/spp/rpp/ratlibr/dsinit.r | |
| download | iraf-linux-fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4.tar.gz | |
Initial commit
Diffstat (limited to 'unix/boot/spp/rpp/ratlibr/dsinit.r')
| -rw-r--r-- | unix/boot/spp/rpp/ratlibr/dsinit.r | 29 |
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 |