1 * $NetBSD: MONADIC.R3V6,v 1.2 1994/10/26 07:48:44 cgd Exp $
3 * MOTOROLA MICROPROCESSOR & MEMORY TECHNOLOGY GROUP
4 * M68000 Hi-Performance Microprocessor Division
5 * M68040 Software Package
7 * M68040 Software Package Copyright (c) 1993, 1994 Motorola Inc.
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34 * MONADIC.R3V6 1.3 4/30/91
36 * MONADIC.R3V6 --- MONADIC template for MCD R3V6 native C compiler
38 * The MCD compiler is old. It returns float and double values
39 * as a double stored in d0/d1. There is no support for single or extended
40 * precision operations. It's not clear whether the float registers
41 * should be preserved, so for speed, they're not.
54 fmove.l fpcr,d1 ; user's rounding mode/precision
55 fmove.l #0,fpcr ; force rounding mode/prec to extended,rn
57 * copy, convert and tag input argument
66 bsr _OPr_ ; normalized (regular) number
74 cmp.b #$40,d0 ; infinity?
84 bsr _OPm_ ; assuming a denorm...
87 fmove.d fp0,USER_D0(a6) ; result goes into d0/d1 pair
88 movem.l USER_D0(a6),d0-d1