1 /* 2 * Linux/PA-RISC Project (http://www.parisc-linux.org/) 3 * 4 * Floating-point emulation code 5 * Copyright (C) 2001 Hewlett-Packard (Paul Bame) <bame@debian.org> 6 * 7 * This program is free software; you can redistribute it and/or modify 8 * it under the terms of the GNU General Public License as published by 9 * the Free Software Foundation; either version 2, or (at your option) 10 * any later version. 11 * 12 * This program is distributed in the hope that it will be useful, 13 * but WITHOUT ANY WARRANTY; without even the implied warranty of 14 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the 15 * GNU General Public License for more details. 16 * 17 * You should have received a copy of the GNU General Public License 18 * along with this program; if not, write to the Free Software 19 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. 20 */ 21 /* 22 * BEGIN_DESC 23 * 24 * File: 25 * @(#) pa/fp/fpu.h $Revision: $ 26 * 27 * Purpose: 28 * <<please update with a synopis of the functionality provided by this file>> 29 * 30 * 31 * END_DESC 32 */ 33 34 #ifdef __NO_PA_HDRS 35 PA header file -- do not include this header file for non-PA builds. 36 #endif 37 38 39 #ifndef _MACHINE_FPU_INCLUDED /* allows multiple inclusion */ 40 #define _MACHINE_FPU_INCLUDED 41 42 #if 0 43 #ifndef _SYS_STDSYMS_INCLUDED 44 # include <sys/stdsyms.h> 45 #endif /* _SYS_STDSYMS_INCLUDED */ 46 #include <machine/pdc/pdc_rqsts.h> 47 #endif 48 49 #define PA83_FPU_FLAG 0x00000001 50 #define PA89_FPU_FLAG 0x00000002 51 #define PA2_0_FPU_FLAG 0x00000010 52 53 #define TIMEX_EXTEN_FLAG 0x00000004 54 55 #define ROLEX_EXTEN_FLAG 0x00000008 56 #define COPR_FP 0x00000080 /* Floating point -- Coprocessor 0 */ 57 #define SFU_MPY_DIVIDE 0x00008000 /* Multiply/Divide __ SFU 0 */ 58 59 60 #define EM_FPU_TYPE_OFFSET 272 61 62 /* version of EMULATION software for COPR,0,0 instruction */ 63 #define EMULATION_VERSION 4 64 65 /* 66 * The only was to differeniate between TIMEX and ROLEX (or PCX-S and PCX-T) 67 * is thorough the potential type field from the PDC_MODEL call. The 68 * following flags are used at assist this differeniation. 69 */ 70 71 #define ROLEX_POTENTIAL_KEY_FLAGS PDC_MODEL_CPU_KEY_WORD_TO_IO 72 #define TIMEX_POTENTIAL_KEY_FLAGS (PDC_MODEL_CPU_KEY_QUAD_STORE | \ 73 PDC_MODEL_CPU_KEY_RECIP_SQRT) 74 75 76 #endif /* ! _MACHINE_FPU_INCLUDED */ 77