Add print string from memory interrupt

src/execute/interrupts.cpp

@@ -8,9 +8,18 @@ namespace Execute
 		return std::vector<InterruptFn>
 		{
 			// 0 print char
-			[](Execute::Registers & registers) { std::putc(registers.A, stdout); },
+			[](Execute::Registers & registers, std::vector<std::uint8_t> & memory) { std::putc(registers.A, stdout); },
 			// 1 print decimal integer
-			[](Execute::Registers & registers) { std::printf("%i", registers.A); }
+			[](Execute::Registers & registers, std::vector<std::uint8_t> & memory) { std::printf("%i", registers.A); },
+			// 2 print string from memory
+			[](Execute::Registers & registers, std::vector<std::uint8_t> & memory)
+			{
+				unsigned const end = registers.A + registers.B;
+				for(unsigned i = registers.A; i < end; ++i)
+				{
+					std::putc(memory[i], stdout);
+				}
+			}
 		};
 	}
 }