1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Linux/PA-RISC Project (http://www.parisc-linux.org/) 4 * 5 * Floating-point emulation code 6 * Copyright (C) 2001 Hewlett-Packard (Paul Bame) <bame@debian.org> 7 */ 8 /* 9 * BEGIN_DESC 10 * 11 * File: 12 * @(#) pa/fp/fpu.h $Revision: 1.1 $ 13 * 14 * Purpose: 15 * <<please update with a synopis of the functionality provided by this file>> 16 * 17 * 18 * END_DESC 19 */ 20 21 #ifdef __NO_PA_HDRS 22 PA header file -- do not include this header file for non-PA builds. 23 #endif 24 25 26 #ifndef _MACHINE_FPU_INCLUDED /* allows multiple inclusion */ 27 #define _MACHINE_FPU_INCLUDED 28 29 #if 0 30 #ifndef _SYS_STDSYMS_INCLUDED 31 # include <sys/stdsyms.h> 32 #endif /* _SYS_STDSYMS_INCLUDED */ 33 #include <machine/pdc/pdc_rqsts.h> 34 #endif 35 36 #define PA83_FPU_FLAG 0x00000001 37 #define PA89_FPU_FLAG 0x00000002 38 #define PA2_0_FPU_FLAG 0x00000010 39 40 #define TIMEX_EXTEN_FLAG 0x00000004 41 42 #define ROLEX_EXTEN_FLAG 0x00000008 43 #define COPR_FP 0x00000080 /* Floating point -- Coprocessor 0 */ 44 #define SFU_MPY_DIVIDE 0x00008000 /* Multiply/Divide __ SFU 0 */ 45 46 47 #define EM_FPU_TYPE_OFFSET 272 48 49 /* version of EMULATION software for COPR,0,0 instruction */ 50 #define EMULATION_VERSION 4 51 52 /* 53 * The only was to differeniate between TIMEX and ROLEX (or PCX-S and PCX-T) 54 * is thorough the potential type field from the PDC_MODEL call. The 55 * following flags are used at assist this differeniation. 56 */ 57 58 #define ROLEX_POTENTIAL_KEY_FLAGS PDC_MODEL_CPU_KEY_WORD_TO_IO 59 #define TIMEX_POTENTIAL_KEY_FLAGS (PDC_MODEL_CPU_KEY_QUAD_STORE | \ 60 PDC_MODEL_CPU_KEY_RECIP_SQRT) 61 62 63 #endif /* ! _MACHINE_FPU_INCLUDED */ 64