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/vops/ak/abgtkd.x | 31 +++++++++++++++++++++++++++++++ 1 file changed, 31 insertions(+) create mode 100644 sys/vops/ak/abgtkd.x (limited to 'sys/vops/ak/abgtkd.x') diff --git a/sys/vops/ak/abgtkd.x b/sys/vops/ak/abgtkd.x new file mode 100644 index 00000000..239caf24 --- /dev/null +++ b/sys/vops/ak/abgtkd.x @@ -0,0 +1,31 @@ +# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. + +# ABGTK -- Vector boolean greater than constant. C[i], type INT, is set to 1 +# if A[i] is greater than B, else C[i] is set to zero. + +procedure abgtkd (a, b, c, npix) + +double a[ARB] +double b +int c[ARB] +int npix +int i + +begin + # The case b==0 is perhaps worth optimizing. On many machines this + # will save a memory fetch. + + if (b == 0.0D0) { + do i = 1, npix + if (a[i] > 0) + c[i] = 1 + else + c[i] = 0 + } else { + do i = 1, npix + if (a[i] > b) + c[i] = 1 + else + c[i] = 0 + } +end -- cgit