Update Cpu class logging

src/app/emu/cpu.cc

@@ -410,7 +410,9 @@ void CPU::ExecuteInstruction(uint8_t opcode) {
                 << (int)DB << std::endl;
       std::cout << "E: " << std::hex << std::setw(2) << std::setfill('0')
                 << (int)E << std::endl;
-
+      // status registers
+      std::cout << "C: " << std::hex << std::setw(2) << std::setfill('0')
+                << (int)status << std::endl;
       break;
     }
 
@@ -559,7 +561,7 @@ void CPU::ExecuteInstruction(uint8_t opcode) {
 
     case 0xE0:  // CPX Immediate
     {
-      operand = Immediate();
+      operand = Immediate(/*index_size=*/true);
       immediate = true;
       CPX(operand, immediate);
       break;
@@ -803,7 +805,7 @@ void CPU::ExecuteInstruction(uint8_t opcode) {
 
     case 0x20:  // JSR Absolute
     {
-      operand = Absolute();
+      operand = Absolute(AccessType::Control);
       JSR(operand);
       break;
     }
@@ -1504,10 +1506,13 @@ void CPU::LogInstructions(uint16_t PC, uint8_t opcode, uint16_t operand,
     instruction_log_.push_back(entry);
   } else {
     // Log the address and opcode.
-    std::cout << "$" << std::uppercase << std::setw(2) << std::setfill('0')
+    std::cout << "\033[1;36m"
-              << static_cast<int>(PB) << ":" << std::hex << PC << ": 0x"
+              << "$" << std::uppercase << std::setw(2) << std::setfill('0')
-              << std::hex << static_cast<int>(opcode) << " "
+              << static_cast<int>(PB) << ":" << std::hex << PC;
-              << opcode_to_mnemonic.at(opcode) << " ";
+    std::cout << " \033[1;32m"
+              << ": 0x" << std::hex << static_cast<int>(opcode) << " ";
+    std::cout << " \033[1;35m" << opcode_to_mnemonic.at(opcode) << " "
+              << "\033[0m";
 
     // Log the operand.
     if (operand) {
@@ -1543,11 +1548,15 @@ uint8_t CPU::GetInstructionLength(uint8_t opcode) {
     case 0xFC:  // JSR Absolute Indexed Indirect
     case 0xDC:  // JMP Absolute Indirect Long
     case 0x6B:  // RTL
-    case 0x80:  // BRA Relative
+
     case 0x82:  // BRL Relative Long
       PC = next_pc_;
       return 0;
 
+    case 0x80:  // BRA Relative
+      PC += next_pc_;
+      return 2;
+
     case 0x60:  // RTS
       PC = last_call_frame_;
       return 0;
@@ -1584,11 +1593,9 @@ uint8_t CPU::GetInstructionLength(uint8_t opcode) {
 
     case 0xD0:  // BNE Relative
       if (!GetZeroFlag()) {
-        PC = next_pc_;
+        PC += next_pc_;
-        return 0;
-      } else {
-        return 2;
       }
+      return 2;
 
     case 0x10:  // BPL Relative
       if (!GetNegativeFlag()) {
@@ -1776,16 +1783,18 @@ uint8_t CPU::GetInstructionLength(uint8_t opcode) {
     case 0x69:  // ADC Immediate
     case 0x29:  // AND Immediate
     case 0xC9:  // CMP Immediate
-    case 0xE0:  // CPX Immediate
-    case 0xC0:  // CPY Immediate
     case 0x49:  // EOR Immediate
     case 0xA9:  // LDA Immediate
-    case 0xA2:  // LDX Immediate
-    case 0xA0:  // LDY Immediate
     case 0x09:  // ORA Immediate
     case 0xE9:  // SBC Immediate
       return GetAccumulatorSize() ? 2 : 3;
 
+    case 0xE0:  // CPX Immediate
+    case 0xC0:  // CPY Immediate
+    case 0xA2:  // LDX Immediate
+    case 0xA0:  // LDY Immediate
+      return GetIndexSize() ? 2 : 3;
+
     case 0x0E:  // ASL Absolute
     case 0x1E:  // ASL Absolute Indexed, X
     case 0x2D:  // AND Absolute

src/app/emu/cpu.h

@@ -43,7 +43,7 @@ class CPU : public Memory, public Loggable, public core::ExperimentFlags {
   explicit CPU(Memory& mem, Clock& vclock) : memory(mem), clock(vclock) {}
   enum class UpdateMode { Run, Step, Pause };
 
-  void Init() { clock.SetFrequency(kCpuClockSpeed); }
+  void Init(bool verbose = false) { clock.SetFrequency(kCpuClockSpeed); }
 
   void Update(UpdateMode mode = UpdateMode::Run, int stepCount = 1);
 
@@ -306,7 +306,7 @@ class CPU : public Memory, public Loggable, public core::ExperimentFlags {
   //   Data Low:  First Operand Byte
   //
   // LDA #const
-  uint16_t Immediate();
+  uint16_t Immediate(bool index_size = false);
 
   uint16_t StackRelative();
 
@@ -460,10 +460,10 @@ class CPU : public Memory, public Loggable, public core::ExperimentFlags {
   void COP();
 
   // CPX: Compare X register
-  void CPX(uint16_t address, bool immediate = false);
+  void CPX(uint32_t address, bool immediate = false);
 
   // CPY: Compare Y register
-  void CPY(uint16_t address, bool immediate = false);
+  void CPY(uint32_t address, bool immediate = false);
 
   // DEC: Decrement memory
   void DEC(uint32_t address, bool accumulator = false);