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Diffstat (limited to 'sys/vops/ak/ablekc.x')
-rw-r--r-- | sys/vops/ak/ablekc.x | 31 |
1 files changed, 31 insertions, 0 deletions
diff --git a/sys/vops/ak/ablekc.x b/sys/vops/ak/ablekc.x new file mode 100644 index 00000000..5a9f776f --- /dev/null +++ b/sys/vops/ak/ablekc.x @@ -0,0 +1,31 @@ +# Copyright(c) 1986 Association of Universities for Research in Astronomy Inc. + +# ABLEK -- Vector boolean less than or equals constant. C[i], type INT, +# is set to 1 if A[i] is less than or equal to B, else C[i] is set to zero. + +procedure ablekc (a, b, c, npix) + +char a[ARB] +char 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) { + 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 |