1 /* -*- mode: C; c-basic-offset: 3; -*- */ 2 3 /*---------------------------------------------------------------*/ 4 /*--- begin s390_defs.h ---*/ 5 /*---------------------------------------------------------------*/ 6 7 /* 8 This file is part of Valgrind, a dynamic binary instrumentation 9 framework. 10 11 Copyright IBM Corp. 2010-2017 12 13 This program is free software; you can redistribute it and/or 14 modify it under the terms of the GNU General Public License as 15 published by the Free Software Foundation; either version 2 of the 16 License, or (at your option) any later version. 17 18 This program is distributed in the hope that it will be useful, but 19 WITHOUT ANY WARRANTY; without even the implied warranty of 20 MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU 21 General Public License for more details. 22 23 You should have received a copy of the GNU General Public License 24 along with this program; if not, write to the Free Software 25 Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 26 02110-1301, USA. 27 28 The GNU General Public License is contained in the file COPYING. 29 */ 30 31 #ifndef __VEX_S390_DEFS_H 32 #define __VEX_S390_DEFS_H 33 34 35 /* Condition code. The encoding of the enumerators matches the value of 36 the mask field in the various branch opcodes. */ 37 typedef enum { 38 S390_CC_NEVER = 0, 39 S390_CC_OVFL = 1, /* overflow */ 40 S390_CC_H = 2, /* A > B ; high */ 41 S390_CC_NLE = 3, /* not low or equal */ 42 S390_CC_L = 4, /* A < B ; low */ 43 S390_CC_NHE = 5, /* not high or equal */ 44 S390_CC_LH = 6, /* low or high */ 45 S390_CC_NE = 7, /* A != B ; not zero */ 46 S390_CC_E = 8, /* A == B ; zero */ 47 S390_CC_NLH = 9, /* not low or high */ 48 S390_CC_HE = 10, /* A >= B ; high or equal*/ 49 S390_CC_NL = 11, /* not low */ 50 S390_CC_LE = 12, /* A <= B ; low or equal */ 51 S390_CC_NH = 13, /* not high */ 52 S390_CC_NO = 14, /* not overflow */ 53 S390_CC_ALWAYS = 15 54 } s390_cc_t; 55 56 57 /* Invert the condition code */ 58 static __inline__ s390_cc_t 59 s390_cc_invert(s390_cc_t cond) 60 { 61 return S390_CC_ALWAYS - cond; 62 } 63 64 65 /* BFP Rounding mode as it is encoded in the m3 field of certain 66 instructions (e.g. CFEBR) */ 67 typedef enum { 68 S390_BFP_ROUND_PER_FPC = 0, 69 S390_BFP_ROUND_NEAREST_AWAY = 1, 70 /* 2 is not allowed */ 71 S390_BFP_ROUND_PREPARE_SHORT = 3, 72 S390_BFP_ROUND_NEAREST_EVEN = 4, 73 S390_BFP_ROUND_ZERO = 5, 74 S390_BFP_ROUND_POSINF = 6, 75 S390_BFP_ROUND_NEGINF = 7 76 } s390_bfp_round_t; 77 78 79 /* BFP Rounding mode as it is encoded in bits [29:31] of the FPC register. 80 Only rounding modes 0..3 are universally supported. Others require 81 additional hardware facilities. */ 82 typedef enum { 83 S390_FPC_BFP_ROUND_NEAREST_EVEN = 0, 84 S390_FPC_BFP_ROUND_ZERO = 1, 85 S390_FPC_BFP_ROUND_POSINF = 2, 86 S390_FPC_BFP_ROUND_NEGINF = 3, 87 /* 4,5,6 are not allowed */ 88 S390_FPC_BFP_ROUND_PREPARE_SHORT = 7 /* floating point extension facility */ 89 } s390_fpc_bfp_round_t; 90 91 92 /* DFP Rounding mode as it is encoded in the m3 field of certain 93 instructions (e.g. CGDTR) */ 94 typedef enum { 95 S390_DFP_ROUND_PER_FPC_0 = 0, 96 S390_DFP_ROUND_NEAREST_TIE_AWAY_0_1 = 1, 97 S390_DFP_ROUND_PER_FPC_2 = 2, 98 S390_DFP_ROUND_PREPARE_SHORT_3 = 3, 99 S390_DFP_ROUND_NEAREST_EVEN_4 = 4, 100 S390_DFP_ROUND_ZERO_5 = 5, 101 S390_DFP_ROUND_POSINF_6 = 6, 102 S390_DFP_ROUND_NEGINF_7 = 7, 103 S390_DFP_ROUND_NEAREST_EVEN_8 = 8, 104 S390_DFP_ROUND_ZERO_9 = 9, 105 S390_DFP_ROUND_POSINF_10 = 10, 106 S390_DFP_ROUND_NEGINF_11 = 11, 107 S390_DFP_ROUND_NEAREST_TIE_AWAY_0_12 = 12, 108 S390_DFP_ROUND_NEAREST_TIE_TOWARD_0 = 13, 109 S390_DFP_ROUND_AWAY_0 = 14, 110 S390_DFP_ROUND_PREPARE_SHORT_15 = 15 111 } s390_dfp_round_t; 112 113 114 /* DFP Rounding mode as it is encoded in bits [25:27] of the FPC register. */ 115 typedef enum { 116 S390_FPC_DFP_ROUND_NEAREST_EVEN = 0, 117 S390_FPC_DFP_ROUND_ZERO = 1, 118 S390_FPC_DFP_ROUND_POSINF = 2, 119 S390_FPC_DFP_ROUND_NEGINF = 3, 120 S390_FPC_DFP_ROUND_NEAREST_AWAY_0 = 4, 121 S390_FPC_DFP_ROUND_NEAREST_TOWARD_0 = 5, 122 S390_FPC_DFP_ROUND_AWAY_ZERO = 6, 123 S390_FPC_DFP_ROUND_PREPARE_SHORT = 7 124 } s390_fpc_dfp_round_t; 125 126 /* PFPO function code as it is encoded in bits [33:55] of GR0 127 when PFPO insn is executed. */ 128 typedef enum { 129 S390_PFPO_F32_TO_D32 = 0x010805, 130 S390_PFPO_F32_TO_D64 = 0x010905, 131 S390_PFPO_F32_TO_D128 = 0x010A05, 132 S390_PFPO_F64_TO_D32 = 0x010806, 133 S390_PFPO_F64_TO_D64 = 0x010906, 134 S390_PFPO_F64_TO_D128 = 0x010A06, 135 S390_PFPO_F128_TO_D32 = 0x010807, 136 S390_PFPO_F128_TO_D64 = 0x010907, 137 S390_PFPO_F128_TO_D128 = 0x010A07, 138 S390_PFPO_D32_TO_F32 = 0x010508, 139 S390_PFPO_D32_TO_F64 = 0x010608, 140 S390_PFPO_D32_TO_F128 = 0x010708, 141 S390_PFPO_D64_TO_F32 = 0x010509, 142 S390_PFPO_D64_TO_F64 = 0x010609, 143 S390_PFPO_D64_TO_F128 = 0x010709, 144 S390_PFPO_D128_TO_F32 = 0x01050A, 145 S390_PFPO_D128_TO_F64 = 0x01060A, 146 S390_PFPO_D128_TO_F128 = 0x01070A 147 } s390_pfpo_function_t; 148 149 /* The length of the longest mnemonic: locgrnhe */ 150 #define S390_MAX_MNEMONIC_LEN 8 151 152 153 /*---------------------------------------------------------------*/ 154 /*--- end s390_defs.h ---*/ 155 /*---------------------------------------------------------------*/ 156 157 #endif /* __VEX_S390_DEFS_H */ 158
