1 * $NetBSD: DYADIC.GCC,v 1.2 1994/10/26 07:48:27 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.
10 * THE SOFTWARE is provided on an "AS IS" basis and without warranty.
11 * To the maximum extent permitted by applicable law,
12 * MOTOROLA DISCLAIMS ALL WARRANTIES WHETHER EXPRESS OR IMPLIED,
13 * INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A
14 * PARTICULAR PURPOSE and any warranty against infringement with
15 * regard to the SOFTWARE (INCLUDING ANY MODIFIED VERSIONS THEREOF)
16 * and any accompanying written materials.
18 * To the maximum extent permitted by applicable law,
19 * IN NO EVENT SHALL MOTOROLA BE LIABLE FOR ANY DAMAGES WHATSOEVER
20 * (INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS
21 * PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR
22 * OTHER PECUNIARY LOSS) ARISING OF THE USE OR INABILITY TO USE THE
23 * SOFTWARE. Motorola assumes no responsibility for the maintenance
24 * and support of the SOFTWARE.
26 * You are hereby granted a copyright license to use, modify, and
27 * distribute the SOFTWARE so long as this entire notice is retained
28 * without alteration in any modified and/or redistributed versions,
29 * and that such modified versions are clearly identified as such.
30 * No licenses are granted by implication, estoppel or otherwise
31 * under any patents or trademarks of Motorola, Inc.
34 * DYADIC.GCC --- DYADIC template for GCC compiler
36 * This is based on the generic template. The only difference is that
37 * GCC does not need the d0-d1/a0-a1 registers saved.
40 * 2. Likewise, don't save FP0/FP1 if they are scratch
42 * 3. Delete updating of the fpsr if you only care about
44 * 5. Move the result to d0/d1 if the compiler is that old.
53 fmovem.x fp0-fp3,USER_FP0(a6)
54 fmove.l fpsr,USER_FPSR(a6)
55 fmove.l fpcr,USER_FPCR(a6) ; user's rounding mode/precision
56 fmove.l #0,fpcr ; force rounding mode/prec to extended,rn
58 * copy, convert and tag input arguments
61 fmove.x fp0,FPTEMP(a6)
74 fmove.l fpsr,d0 ; update status register
75 or.b FPSR_AEXCEPT(a6),d0 ;add previously accrued exceptions
77 or.b FPSR_QBYTE(a6),d0 ; pickup sign of quotient byte
81 * Result is now in FP0
83 fmovem.x USER_FP1(a6),fp1-fp3 ; note: FP0 not restored
90 fmovem.x fp0-fp3,USER_FP0(a6)
91 fmove.l fpsr,USER_FPSR(a6)
92 fmove.l fpcr,USER_FPCR(a6) ; user's rounding mode/precision
93 fmove.l #0,fpcr ; force rounding mode/prec to extended,rn
95 * copy, convert and tag input arguments
98 fmove.x fp0,FPTEMP(a6)
104 fmove.x fp0,ETEMP(a6)
111 fmove.l fpsr,d0 ; update status register
112 or.b FPSR_AEXCEPT(a6),d0 ;add previously accrued exceptions
114 or.b FPSR_QBYTE(a6),d0 ; pickup sign of quotient byte
118 * Result is now in FP0
120 fmovem.x USER_FP1(a6),fp1-fp3 ; note: FP0 not restored
127 fmovem.x fp0-fp3,USER_FP0(a6)
128 fmove.l fpsr,USER_FPSR(a6)
129 fmove.l fpcr,USER_FPCR(a6) ; user's rounding mode/precision
130 fmove.l #0,fpcr ; force rounding mode/prec to extended,rn
132 * copy, convert and tag input arguments
135 fmove.x fp0,FPTEMP(a6)
141 fmove.x fp0,ETEMP(a6)
148 fmove.l fpsr,d0 ; update status register
149 or.b FPSR_AEXCEPT(a6),d0 ;add previously accrued exceptions
151 or.b FPSR_QBYTE(a6),d0 ; pickup sign of quotient byte
155 * Result is now in FP0
157 fmovem.x USER_FP1(a6),fp1-fp3 ; note: FP0 not restored