Suppress some warning

You can call it a fix but in reality it has same effect but I accept
that this is better.

2 files changed, 3 insertions, 5 deletions

diff --git a/qtmips_machine/alu.cpp b/qtmips_machine/alu.cpp
index 8be9f2a..0350412 100644
--- a/qtmips_machine/alu.cpp
+++ b/qtmips_machine/alu.cpp
@@ -36,13 +36,13 @@ std::uint32_t alu_operate(enum AluOp operation, std::uint32_t s, std::uint32_t t
         case ALU_OP_ADD:
             if (s > (0xFFFFFFFF - t))
                 throw QTMIPS_EXCEPTION(Overflow, "ADD operation overflow/underflow", QString::number(s) + QString(" + ") + QString::number(t));
-            // Intentional falltrough
+            __attribute__((fallthrough));
         case ALU_OP_ADDU:
             return s + t;
         case ALU_OP_SUB:
             if (s < t)
                 throw QTMIPS_EXCEPTION(Overflow, "SUB operation overflow/underflow", QString::number(s) + QString(" - ") + QString::number(t));
-            // Intentional falltrough
+            __attribute__((fallthrough));
         case ALU_OP_SUBU:
             return s - t;
         case ALU_OP_AND:
diff --git a/qtmips_machine/instruction.cpp b/qtmips_machine/instruction.cpp
index b6abebc..4137fdd 100644
--- a/qtmips_machine/instruction.cpp
+++ b/qtmips_machine/instruction.cpp
@@ -67,9 +67,7 @@ Instruction::Instruction(std::uint8_t opcode, std::uint32_t address) {
     this->dt |= address;
 }
 
-Instruction::Instruction(const Instruction &i) {
-    this->dt = i.data();
-}
+Instruction::Instruction(const Instruction &i) : Instruction(i.data()) { }
 
 QString Instruction::to_str() {
     if  (this->opcode() >= sizeof(instruction_map))