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/* Capstone Disassembly Engine */
/* By Nguyen Anh Quynh <aquynh@gmail.com>, 2013-2019 */
#include "MCInstrDesc.h"
/// isPredicate - Set if this is one of the operands that made up of
/// the predicate operand that controls an isPredicable() instruction.
bool MCOperandInfo_isPredicate(const MCOperandInfo *m)
{
return m->Flags & (1 << MCOI_Predicate);
}
/// isOptionalDef - Set if this operand is a optional def.
///
bool MCOperandInfo_isOptionalDef(const MCOperandInfo *m)
{
return m->Flags & (1 << MCOI_OptionalDef);
}
/// Checks if operand is tied to another one.
bool MCOperandInfo_isTiedToOp(const MCOperandInfo *m)
{
if (m->Constraints & (1 << MCOI_TIED_TO))
return true;
return false;
}
/// Returns the value of the specified operand constraint if
/// it is present. Returns -1 if it is not present.
int MCOperandInfo_getOperandConstraint(const MCInstrDesc *InstrDesc,
unsigned OpNum,
MCOI_OperandConstraint Constraint)
{
const MCOperandInfo OpInfo = InstrDesc->OpInfo[OpNum];
if (OpNum < InstrDesc->NumOperands &&
(OpInfo.Constraints & (1 << Constraint))) {
unsigned ValuePos = 4 + Constraint * 4;
return (OpInfo.Constraints >> ValuePos) & 0xf;
}
return -1;
}
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