29 lines
535 B
C
29 lines
535 B
C
/*
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(c) copyright 1988 by the Vrije Universiteit, Amsterdam, The Netherlands.
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See the copyright notice in the ACK home directory, in the file "Copyright".
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*/
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/* $Header$ */
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/*
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SUBTRACT TWO FLOATS - DOUBLE Precision (SBF 8)
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*/
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#include "FP_types.h"
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extern _double adf8(), ngf8();
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_double
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sbf8(s2,s1)
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_double s1,s2;
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{
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_double *result = &s1; /* s1 may not be in a register! */
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if (s2.__double[0] == 0 && s2.__double[1] == 0) {
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return s1;
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}
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s2 = ngf8(s2);
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*result = adf8(s2,s1); /* add and return result */
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return(s1);
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}
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