Use portability macros in the 6502 disassembler.

Signed-off-by: Adrian Conlon <Adrian.conlon@gmail.com>

M6502/inc/Disassembly.h

@@ -144,7 +144,7 @@ namespace EightBit {
 			case 0b110:
 				throw std::domain_error("Illegal addressing mode");
 			default:
-				__assume(0);
+				UNREACHABLE;
 			}
 		}
 
@@ -165,7 +165,7 @@ namespace EightBit {
 			case 0b110:
 				throw std::domain_error("Illegal addressing mode");
 			default:
-				__assume(0);
+				UNREACHABLE;
 			}
 		}
 
@@ -188,7 +188,7 @@ namespace EightBit {
 			case 0b111:
 				return AM_AbsoluteX_dump();
 			default:
-				__assume(0);
+				UNREACHABLE;
 			}
 		}
 
@@ -211,7 +211,7 @@ namespace EightBit {
 			case 0b111:
 				return AM_AbsoluteX();
 			default:
-				__assume(0);
+				UNREACHABLE;
 			}
 		}
 
@@ -233,7 +233,7 @@ namespace EightBit {
 			case 0b110:
 				throw std::domain_error("Illegal addressing mode");
 			default:
-				__assume(0);
+				UNREACHABLE;
 			}
 		}
 
@@ -255,7 +255,7 @@ namespace EightBit {
 			case 0b110:
 				throw std::domain_error("Illegal addressing mode");
 			default:
-				__assume(0);
+				UNREACHABLE;
 			}
 		}
 
@@ -277,7 +277,7 @@ namespace EightBit {
 			case 0b110:
 				throw std::domain_error("Illegal addressing mode");
 			default:
-				__assume(0);
+				UNREACHABLE;
 			}
 		}
 
@@ -299,7 +299,7 @@ namespace EightBit {
 			case 0b110:
 				throw std::domain_error("Illegal addressing mode");
 			default:
-				__assume(0);
+				UNREACHABLE;
 			}
 		}
 

M6502/src/Disassembly.cpp

@@ -286,7 +286,7 @@ std::string EightBit::Disassembly::disassemble(uint16_t current) const {
 			output << disassemble_AM_01(bbb, "SBC");
 			break;
 		default:
-			__assume(0);
+			UNREACHABLE;
 		}
 		break;
 	case 0b10:
@@ -384,13 +384,13 @@ std::string EightBit::Disassembly::disassemble(uint16_t current) const {
 			}
 			break;
 		default:
-			__assume(0);
+			UNREACHABLE;
 		}
 		break;
 	case 0b11:
 		throw std::domain_error("Illegal instruction group");
 	default:
-		__assume(0);
+		UNREACHABLE;
 	}
 
 	//const auto& instruction = processor.getInstruction(content);