1 //===-- PPCPredicates.h - PPC Branch Predicate Information ------*- C++ -*-===// 2 // 3 // The LLVM Compiler Infrastructure 4 // 5 // This file is distributed under the University of Illinois Open Source 6 // License. See LICENSE.TXT for details. 7 // 8 //===----------------------------------------------------------------------===// 9 // 10 // This file describes the PowerPC branch predicates. 11 // 12 //===----------------------------------------------------------------------===// 13 14 /* Capstone Disassembly Engine */ 15 /* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013-2014 */ 16 17 #ifndef CS_POWERPC_PPCPREDICATES_H 18 #define CS_POWERPC_PPCPREDICATES_H 19 20 #include "../../include/ppc.h" 21 22 // NOTE: duplicate of ppc_bc in ppc.h to maitain code compatibility with LLVM 23 typedef enum ppc_predicate { 24 PPC_PRED_LT = (0 << 5) | 12, 25 PPC_PRED_LE = (1 << 5) | 4, 26 PPC_PRED_EQ = (2 << 5) | 12, 27 PPC_PRED_GE = (0 << 5) | 4, 28 PPC_PRED_GT = (1 << 5) | 12, 29 PPC_PRED_NE = (2 << 5) | 4, 30 PPC_PRED_UN = (3 << 5) | 12, 31 PPC_PRED_NU = (3 << 5) | 4, 32 PPC_PRED_LT_MINUS = (0 << 5) | 14, 33 PPC_PRED_LE_MINUS = (1 << 5) | 6, 34 PPC_PRED_EQ_MINUS = (2 << 5) | 14, 35 PPC_PRED_GE_MINUS = (0 << 5) | 6, 36 PPC_PRED_GT_MINUS = (1 << 5) | 14, 37 PPC_PRED_NE_MINUS = (2 << 5) | 6, 38 PPC_PRED_UN_MINUS = (3 << 5) | 14, 39 PPC_PRED_NU_MINUS = (3 << 5) | 6, 40 PPC_PRED_LT_PLUS = (0 << 5) | 15, 41 PPC_PRED_LE_PLUS = (1 << 5) | 7, 42 PPC_PRED_EQ_PLUS = (2 << 5) | 15, 43 PPC_PRED_GE_PLUS = (0 << 5) | 7, 44 PPC_PRED_GT_PLUS = (1 << 5) | 15, 45 PPC_PRED_NE_PLUS = (2 << 5) | 7, 46 PPC_PRED_UN_PLUS = (3 << 5) | 15, 47 PPC_PRED_NU_PLUS = (3 << 5) | 7, 48 49 // When dealing with individual condition-register bits, we have simple set 50 // and unset predicates. 51 PPC_PRED_BIT_SET = 1024, 52 PPC_PRED_BIT_UNSET = 1025 53 } ppc_predicate; 54 55 /// Invert the specified predicate. != -> ==, < -> >=. 56 ppc_predicate InvertPredicate(ppc_predicate Opcode); 57 58 /// Assume the condition register is set by MI(a,b), return the predicate if 59 /// we modify the instructions such that condition register is set by MI(b,a). 60 ppc_predicate getSwappedPredicate(ppc_predicate Opcode); 61 62 #endif 63