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 #ifndef _MACHINE_FPU_INCLUDED /* allows multiple inclusion */ 10 #define _MACHINE_FPU_INCLUDED 11 12 #define PA83_FPU_FLAG 0x00000001 13 #define PA89_FPU_FLAG 0x00000002 14 #define PA2_0_FPU_FLAG 0x00000010 15 16 #define TIMEX_EXTEN_FLAG 0x00000004 17 18 #define ROLEX_EXTEN_FLAG 0x00000008 19 #define COPR_FP 0x00000080 /* Floating point -- Coprocessor 0 */ 20 #define SFU_MPY_DIVIDE 0x00008000 /* Multiply/Divide __ SFU 0 */ 21 22 #define EM_FPU_TYPE_OFFSET 272 23 24 /* version of EMULATION software for COPR,0,0 instruction */ 25 #define EMULATION_VERSION 4 26 27 /* 28 * The only way to differentiate between TIMEX and ROLEX (or PCX-S and PCX-T) 29 * is through the potential type field from the PDC_MODEL call. 30 * The following flags are used to assist this differentiation. 31 */ 32 33 #define ROLEX_POTENTIAL_KEY_FLAGS PDC_MODEL_CPU_KEY_WORD_TO_IO 34 #define TIMEX_POTENTIAL_KEY_FLAGS (PDC_MODEL_CPU_KEY_QUAD_STORE | \ 35 PDC_MODEL_CPU_KEY_RECIP_SQRT) 36 37 #endif /* ! _MACHINE_FPU_INCLUDED */ 38