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CPU: Fix BGEZAL with rs == ra

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This commit is contained in:
Connor McLaughlin
2019-09-15 01:02:35 +10:00
parent 273f010d17
commit bea727bbe4
2 changed files with 40 additions and 40 deletions
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12
src/pse/cpu_core.cpp
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@ -800,14 +800,14 @@ void Core::ExecuteInstruction(Instruction inst)
// bgez is the inverse of bltz, so simply do ltz and xor the result
const bool bgez = ConvertToBoolUnchecked(rt & u8(1));
const bool branch = (static_cast<s32>(ReadReg(inst.i.rs)) < 0) ^ bgez;
if (branch)
{
const bool link = ConvertToBoolUnchecked((rt >> 4) & u8(1));
if (link)
m_regs.ra = m_regs.npc;
// register is still linked even if the branch isn't taken
const bool link = (rt & u8(0x1E)) == u8(0x10);
if (link)
m_regs.ra = m_regs.npc;
if (branch)
Branch(m_regs.pc + (inst.i.imm_sext32() << 2));
}
}
break;