From fa080de7afc95aa1c19a6e6fc0e0708ced2eadc4 Mon Sep 17 00:00:00 2001 From: Joseph Hunkeler Date: Wed, 8 Jul 2015 20:46:52 -0400 Subject: Initial commit --- sys/plio/plloop.x | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 sys/plio/plloop.x (limited to 'sys/plio/plloop.x') diff --git a/sys/plio/plloop.x b/sys/plio/plloop.x new file mode 100644 index 00000000..500dc8bb --- /dev/null +++ b/sys/plio/plloop.x @@ -0,0 +1,31 @@ +# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. + +include + +# PLLOOP -- Increment the vector V from VS to VE (nested do loops cannot +# be used because of the variable number of dimensions). Return LOOP_DONE +# when V exceeds VE. + +int procedure plloop (v, vs, ve, ndim) + +long v[ndim] #U vector giving current position in image +long vs[ndim] #I start vector +long ve[ndim] #I end vector +int ndim #I vector length + +int i + +begin + do i = 2, ndim { + v[i] = v[i] + 1 + if (v[i] > ve[i]) { + if (i < ndim) + v[i] = vs[i] + else + break + } else + return (LOOP_AGAIN) + } + + return (LOOP_DONE) +end -- cgit