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Adding branch instructions

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This commit is contained in:
AnonymusRaccoon
2020-02-28 19:20:59 +01:00
parent 68b82c9cda
commit d1561f1be3
6 changed files with 417 additions and 2 deletions
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21
sources/Debugger/CPUDebug.cpp
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@@ -146,6 +146,16 @@ namespace ComSquare::Debugger
return ss.str();
}
std::string CPUDebug::_getImmediateValue16Bits(uint24_t pc)
{
unsigned value = this->_bus->read(pc);
value += this->_bus->read(pc + 1) << 8u;
std::stringstream ss;
ss << "#$" << std::hex << value;
return ss.str();
}
std::string CPUDebug::_getDirectValue(uint24_t pc)
{
std::stringstream ss;
@@ -345,6 +355,17 @@ namespace ComSquare::Debugger
case Instructions::CPY_ABS: return "CPY " + this->_getAbsoluteValue(pc);
case Instructions::CPY_DP: return "CPY";
case Instructions::BCC: return "BCC " + this->_getImmediateValue8Bits(pc);
case Instructions::BCS: return "BCS " + this->_getImmediateValue8Bits(pc);
case Instructions::BEQ: return "BEQ " + this->_getImmediateValue8Bits(pc);
case Instructions::BNE: return "BNE " + this->_getImmediateValue8Bits(pc);
case Instructions::BMI: return "BMI " + this->_getImmediateValue8Bits(pc);
case Instructions::BPL: return "BPL " + this->_getImmediateValue8Bits(pc);
case Instructions::BVC: return "BVC " + this->_getImmediateValue8Bits(pc);
case Instructions::BVS: return "BVS " + this->_getImmediateValue8Bits(pc);
case Instructions::BRA: return "BRA " + this->_getImmediateValue8Bits(pc);
case Instructions::BRL: return "BRL " + this->_getImmediateValue16Bits(pc);
default: return "Unknown";
}
}