Function LiftBranches

arch/powerpc/il.cpp:245–423

}

static bool LiftBranches(Architecture* arch, LowLevelILFunction &il, const uint8_t* data, uint64_t addr, bool le)
{
	// MYLOG("%s() addr:0x%08llx\n", __func__, addr);
	uint32_t insn = *(const uint32_t *) data;
	bool lk;
	size_t addressSize_l = arch->GetAddressSize();

	if (!le)
	{
		insn = bswap32(insn);
	}

	lk = insn & 1;

	switch (insn >> 26)
	{
		case PPC_INS_BCA: /* b (b, ba, bl, bla) */
		{
			uint64_t target = insn & 0x03fffffc;

			/* sign extend target */
			target = sign_extend(addressSize_l, target, 25);

			/* account for absolute addressing */
			if (!(insn & 2))
			{
				target += addr;
				ADDRMASK(addressSize_l, target);
			}

			BNLowLevelILLabel* label = il.GetLabelForAddress(arch, target);

			if (label && !(lk && (target != (addr+4))))
			{
				/* branch to an instruction within the same function -- take
				 * 'lk' bit behavior into account, but don't emit as a call
				 */
				if (lk)
				{
					il.AddInstruction(il.SetRegister(addressSize_l, PPC_REG_LR, il.ConstPointer(addressSize_l, addr + 4)));
				}	

				il.AddInstruction(il.Goto(*label));
			}
			else
			{
				ExprId dest = il.ConstPointer(4, target);

				if (lk)
					il.AddInstruction(il.Call(dest));
				else
					il.AddInstruction(il.Jump(dest));
			}

			break;
		}
		case PPC_INS_BA: /* bc */
		{