Fix SPU STOP instruction

Check thread state after STOP instruction

rpcs3/Emu/Cell/SPUASMJITRecompiler.cpp

@@ -1580,12 +1580,26 @@ void spu_recompiler::STOP(spu_opcode_t op)
 	c->align(kAlignCode, 16);
 	c->bind(ret);
 
+	c->mov(SPU_OFF_32(pc), m_pos + 4);
+
 	if (g_cfg.core.spu_block_size == spu_block_size_type::safe)
 	{
-		c->mov(SPU_OFF_32(pc), m_pos + 4);
 		c->ret();
 		m_pos = -1;
 	}
+	else
+	{
+		Label label_next = c->newLabel();
+		Label label_check = c->newLabel();
+		c->cmp(SPU_OFF_32(state), 0);
+		c->jnz(label_check);
+		c->jmp(label_next);
+		c->bind(label_check);
+		c->lea(*ls, x86::qword_ptr(label_next));
+		c->jmp(imm_ptr(&check_state));
+		c->align(kAlignCode, 16);
+		c->bind(label_next);
+	}
 }
 
 void spu_recompiler::LNOP(spu_opcode_t op)

rpcs3/Emu/Cell/SPUInterpreter.cpp

@@ -117,7 +117,18 @@ void spu_interpreter::set_interrupt_status(spu_thread& spu, spu_opcode_t op)
 
 bool spu_interpreter::STOP(spu_thread& spu, spu_opcode_t op)
 {
-	return spu.stop_and_signal(op.opcode & 0x3fff);
+	if (!spu.stop_and_signal(op.opcode & 0x3fff))
+	{
+		return false;
+	}
+
+	if (spu.state)
+	{
+		spu.pc += 4;
+		return false;
+	}
+
+	return true;
 }
 
 bool spu_interpreter::LNOP(spu_thread& spu, spu_opcode_t op)

rpcs3/Emu/Cell/SPURecompiler.cpp

@@ -3056,6 +3056,10 @@ public:
 			m_ir->CreateStore(m_ir->getInt32(m_pos + 4), spu_ptr<u32>(&spu_thread::pc));
 			m_ir->CreateRetVoid();
 		}
+		else
+		{
+			check_state(m_pos + 4);
+		}
 	}
 
 	void STOPD(spu_opcode_t op) //

rpcs3/Emu/Cell/SPUThread.cpp

@@ -2066,7 +2066,7 @@ bool spu_thread::stop_and_signal(u32 code)
 
 		int_ctrl[2].set(SPU_INT2_STAT_SPU_STOP_AND_SIGNAL_INT);
 		state += cpu_flag::stop;
-		return true; // ???
+		return true;
 	}
 
 	switch (code)