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62 lines
2.1 KiB
62 lines
2.1 KiB
//===-- PPCPredicates.h - PPC Branch Predicate Information ------*- C++ -*-===// |
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// |
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// The LLVM Compiler Infrastructure |
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// |
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// This file is distributed under the University of Illinois Open Source |
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// License. See LICENSE.TXT for details. |
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// |
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//===----------------------------------------------------------------------===// |
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// |
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// This file describes the PowerPC branch predicates. |
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// |
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//===----------------------------------------------------------------------===// |
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/* Capstone Disassembly Engine */ |
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/* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013-2014 */ |
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#ifndef CS_POWERPC_PPCPREDICATES_H |
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#define CS_POWERPC_PPCPREDICATES_H |
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#include "../../include/ppc.h" |
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// NOTE: duplicate of ppc_bc in ppc.h to maitain code compatibility with LLVM |
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typedef enum ppc_predicate { |
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PPC_PRED_LT = (0 << 5) | 12, |
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PPC_PRED_LE = (1 << 5) | 4, |
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PPC_PRED_EQ = (2 << 5) | 12, |
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PPC_PRED_GE = (0 << 5) | 4, |
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PPC_PRED_GT = (1 << 5) | 12, |
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PPC_PRED_NE = (2 << 5) | 4, |
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PPC_PRED_UN = (3 << 5) | 12, |
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PPC_PRED_NU = (3 << 5) | 4, |
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PPC_PRED_LT_MINUS = (0 << 5) | 14, |
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PPC_PRED_LE_MINUS = (1 << 5) | 6, |
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PPC_PRED_EQ_MINUS = (2 << 5) | 14, |
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PPC_PRED_GE_MINUS = (0 << 5) | 6, |
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PPC_PRED_GT_MINUS = (1 << 5) | 14, |
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PPC_PRED_NE_MINUS = (2 << 5) | 6, |
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PPC_PRED_UN_MINUS = (3 << 5) | 14, |
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PPC_PRED_NU_MINUS = (3 << 5) | 6, |
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PPC_PRED_LT_PLUS = (0 << 5) | 15, |
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PPC_PRED_LE_PLUS = (1 << 5) | 7, |
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PPC_PRED_EQ_PLUS = (2 << 5) | 15, |
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PPC_PRED_GE_PLUS = (0 << 5) | 7, |
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PPC_PRED_GT_PLUS = (1 << 5) | 15, |
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PPC_PRED_NE_PLUS = (2 << 5) | 7, |
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PPC_PRED_UN_PLUS = (3 << 5) | 15, |
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PPC_PRED_NU_PLUS = (3 << 5) | 7, |
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// When dealing with individual condition-register bits, we have simple set |
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// and unset predicates. |
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PPC_PRED_BIT_SET = 1024, |
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PPC_PRED_BIT_UNSET = 1025 |
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} ppc_predicate; |
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/// Invert the specified predicate. != -> ==, < -> >=. |
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ppc_predicate InvertPredicate(ppc_predicate Opcode); |
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/// Assume the condition register is set by MI(a,b), return the predicate if |
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/// we modify the instructions such that condition register is set by MI(b,a). |
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ppc_predicate getSwappedPredicate(ppc_predicate Opcode); |
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#endif
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