29 lines
570 B
Text
29 lines
570 B
Text
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/*
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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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NEGATE A FLOATING POINT (NGF 8)
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*/
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/********************************************************/
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#include "FP_types.h"
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#include "get_put.h"
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#define OFF ((FL_MSL_AT_LOW_ADDRESS ? 0 : 4) + (FL_MSW_AT_LOW_ADDRESS ? 0 : 2) + (FL_MSB_AT_LOW_ADDRESS ? 0 : 1))
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void
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ngf8(f)
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DOUBLE f;
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{
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unsigned char *p;
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if (f.d[0] != 0 || f.d[1] != 0) {
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p = (unsigned char *) &f + OFF;
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*p ^= 0x80;
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}
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}
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