DYADIC.R3V6 revision 1.1.1.1
1 1.1 mycroft * MOTOROLA MICROPROCESSOR & MEMORY TECHNOLOGY GROUP 2 1.1 mycroft * M68000 Hi-Performance Microprocessor Division 3 1.1 mycroft * M68040 Software Package 4 1.1 mycroft * 5 1.1 mycroft * M68040 Software Package Copyright (c) 1993, 1994 Motorola Inc. 6 1.1 mycroft * All rights reserved. 7 1.1 mycroft * 8 1.1 mycroft * THE SOFTWARE is provided on an "AS IS" basis and without warranty. 9 1.1 mycroft * To the maximum extent permitted by applicable law, 10 1.1 mycroft * MOTOROLA DISCLAIMS ALL WARRANTIES WHETHER EXPRESS OR IMPLIED, 11 1.1 mycroft * INCLUDING IMPLIED WARRANTIES OF MERCHANTABILITY OR FITNESS FOR A 12 1.1 mycroft * PARTICULAR PURPOSE and any warranty against infringement with 13 1.1 mycroft * regard to the SOFTWARE (INCLUDING ANY MODIFIED VERSIONS THEREOF) 14 1.1 mycroft * and any accompanying written materials. 15 1.1 mycroft * 16 1.1 mycroft * To the maximum extent permitted by applicable law, 17 1.1 mycroft * IN NO EVENT SHALL MOTOROLA BE LIABLE FOR ANY DAMAGES WHATSOEVER 18 1.1 mycroft * (INCLUDING WITHOUT LIMITATION, DAMAGES FOR LOSS OF BUSINESS 19 1.1 mycroft * PROFITS, BUSINESS INTERRUPTION, LOSS OF BUSINESS INFORMATION, OR 20 1.1 mycroft * OTHER PECUNIARY LOSS) ARISING OF THE USE OR INABILITY TO USE THE 21 1.1 mycroft * SOFTWARE. Motorola assumes no responsibility for the maintenance 22 1.1 mycroft * and support of the SOFTWARE. 23 1.1 mycroft * 24 1.1 mycroft * You are hereby granted a copyright license to use, modify, and 25 1.1 mycroft * distribute the SOFTWARE so long as this entire notice is retained 26 1.1 mycroft * without alteration in any modified and/or redistributed versions, 27 1.1 mycroft * and that such modified versions are clearly identified as such. 28 1.1 mycroft * No licenses are granted by implication, estoppel or otherwise 29 1.1 mycroft * under any patents or trademarks of Motorola, Inc. 30 1.1 mycroft 31 1.1 mycroft * 32 1.1 mycroft * DYADIC.R3V6 1.2 4/30/91 33 1.1 mycroft * 34 1.1 mycroft * DYADIC.R3V6 --- DYADIC template for MCD R3V6 native C compiler 35 1.1 mycroft * 36 1.1 mycroft * The MCD compiler is old. It returns float and double values 37 1.1 mycroft * as a double stored in d0/d1. There is no support for single or extended 38 1.1 mycroft * precision operations. It's not clear whether the float registers 39 1.1 mycroft * should be preserved, so for speed they're not. 40 1.1 mycroft * 41 1.1 mycroft 42 1.1 mycroft xref _OPa_ 43 1.1 mycroft xref tag 44 1.1 mycroft 45 1.1 mycroft xdef _OPd_ 46 1.1 mycroft _OPd_: 47 1.1 mycroft link a6,#-LOCAL_SIZE 48 1.1 mycroft fmovem.l fpsr/fpcr,USER_FPSR(a6) ; user's rounding mode/precision 49 1.1 mycroft fmove.l #0,fpcr ; force rounding mode/prec to extended,rn 50 1.1 mycroft * 51 1.1 mycroft * copy and convert arguments to ETEMP, FPTEMP. 52 1.1 mycroft * 53 1.1 mycroft fmove.d 8(a6),fp0 54 1.1 mycroft fmove.x fp0,FPTEMP(a6) 55 1.1 mycroft lea FPTEMP(a6),a0 56 1.1 mycroft bsr tag 57 1.1 mycroft move.b d0,DTAG(a6) 58 1.1 mycroft 59 1.1 mycroft fmove.d 16(a6),fp0 60 1.1 mycroft fmove.x fp0,ETEMP(a6) 61 1.1 mycroft lea ETEMP(a6),a0 62 1.1 mycroft bsr tag 63 1.1 mycroft move.b d0,STAG(a6) 64 1.1 mycroft 65 1.1 mycroft bsr _OPa_ 66 1.1 mycroft 67 1.1 mycroft fmove.d fp0,USER_D0(a6) ; result goes into d0/d1 pair 68 1.1 mycroft movem.l USER_D0(a6),d0-d1 69 1.1 mycroft unlk a6 70 1.1 mycroft rts 71
Indexes created Mon Nov 03 23:09:52 GMT 2025