1 /* 2 * fpu_asm.h 3 * 4 * 5 * Copyright (C) 1992, 1993 W. Metzenthen, 22 Parker St, Ormond, 6 * Vic 3163, Australia. 7 * E-mail apm233m@vaxc.cc.monash.edu.au 8 * All rights reserved. 9 * 10 * This copyright notice covers the redistribution and use of the 11 * FPU emulator developed by W. Metzenthen. It covers only its use 12 * in the 386BSD operating system. Any other use is not permitted 13 * under this copyright. 14 * 15 * Redistribution and use in source and binary forms, with or without 16 * modification, are permitted provided that the following conditions 17 * are met: 18 * 1. Redistributions of source code must retain the above copyright 19 * notice, this list of conditions and the following disclaimer. 20 * 2. Redistributions in binary form must include information specifying 21 * that source code for the emulator is freely available and include 22 * either: 23 * a) an offer to provide the source code for a nominal distribution 24 * fee, or 25 * b) list at least two alternative methods whereby the source 26 * can be obtained, e.g. a publically accessible bulletin board 27 * and an anonymous ftp site from which the software can be 28 * downloaded. 29 * 3. All advertising materials specifically mentioning features or use of 30 * this emulator must acknowledge that it was developed by W. Metzenthen. 31 * 4. The name of W. Metzenthen may not be used to endorse or promote 32 * products derived from this software without specific prior written 33 * permission. 34 * 35 * THIS SOFTWARE IS PROVIDED ``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, 36 * INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY 37 * AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL 38 * W. METZENTHEN BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, 39 * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, 40 * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR 41 * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF 42 * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING 43 * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS 44 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. 45 * 46 */ 47 48 #ifndef _FPU_ASM_H_ 49 #define _FPU_ASM_H_ 50 51 #include "fpu_emu.h" 52 53 #define EXCEPTION _exception 54 55 56 #define PARAM1 8(%ebp) 57 #define PARAM2 12(%ebp) 58 #define PARAM3 16(%ebp) 59 #define PARAM4 20(%ebp) 60 61 #define SIGL_OFFSET 8 62 #define SIGN(x) (x) 63 #define TAG(x) 1(x) 64 #define EXP(x) 4(x) 65 #define SIG(x) SIGL_OFFSET##(x) 66 #define SIGL(x) SIGL_OFFSET##(x) 67 #define SIGH(x) 12(x) 68 69 #endif _FPU_ASM_H_ 70