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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/gdev/m70vms/zrdm70.x | |
| download | iraf-linux-fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4.tar.gz | |
Initial commit
Diffstat (limited to 'unix/gdev/m70vms/zrdm70.x')
| -rw-r--r-- | unix/gdev/m70vms/zrdm70.x | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/unix/gdev/m70vms/zrdm70.x b/unix/gdev/m70vms/zrdm70.x new file mode 100644 index 00000000..2bf726ab --- /dev/null +++ b/unix/gdev/m70vms/zrdm70.x @@ -0,0 +1,36 @@ +# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. + +include <mach.h> +include <knet.h> +include "m70.h" + +# ZRDM70 -- Initiate an asynchronous read from the IIS. + +procedure zrdm70 (chan, buf, nbytes, offset) + +int chan # FCB pointer for device +char buf[ARB] # output buffer +int nbytes # number of bytes to read +long offset # not used for this device + +pointer fcb +short rwflag, opcd, nwords, ier +data rwflag /IIS_READ/, opcd /EFN/ + +begin + fcb = chan + if (FCB_KCHAN(fcb) == NULL) { + nwords = nbytes / (SZ_SHORT * SZB_CHAR) + call m70io (Mems[fcb], buf, nwords, rwflag, opcd, FCB_IOSB(fcb,1), + ier) + + FCB_NBYTES(fcb) = nbytes + FCB_EFN(fcb) = opcd + + if (ier != 0) + FCB_STATUS(fcb) = ERR + else + FCB_STATUS(fcb) = IIS_READ + } else + call zardbf (FCB_KCHAN(fcb), buf, nbytes, offset) +end |