Add string input interrupt from STDIN

src/execute/interrupts.cpp

@@ -1,4 +1,5 @@
 #include <cstdio>
+#include <execute/error.hpp>
 #include <execute/interrupts.hpp>
 
 namespace Execute
@@ -18,6 +19,11 @@ namespace Execute
 			[](Execute::Registers & registers, std::vector<std::uint8_t> & memory)
 			{
 				unsigned const end = registers.A + registers.B;
+				if (end >= memory.size())
+				{
+					throw OutOfMemory(registers.A, registers.B);
+				}
+
 				for(unsigned i = registers.A; i < end; ++i)
 				{
 					std::putc(memory[i], stdout);
@@ -29,7 +35,49 @@ namespace Execute
 			[](Execute::Registers & registers, std::vector<std::uint8_t> & memory)
 			{
 				registers.A = std::getchar();
-			}
+				if (registers.A == '\n')
+				{
+					return;
+				}
+
+				while(std::getchar() != '\n');
+			},
+			// 11 get string from STDIN
+			[](Execute::Registers & registers, std::vector<std::uint8_t> & memory)
+			{
+				if (registers.B <= 0)
+				{
+					registers.B = 0;
+					return;
+				}
+
+				if (registers.A < 0 || static_cast<unsigned>(registers.A + registers.B) >= memory.size())
+				{
+					throw OutOfMemory(registers.A, registers.B);
+				}
+
+				int charactersRead = 0;
+				bool newlineRead = false;
+				while(charactersRead < registers.B)
+				{
+					char result = std::getchar();
+					if (result == '\n')
+					{
+						newlineRead = true;
+						break;
+					}
+
+					memory[registers.A + charactersRead] = result;
+					++charactersRead;
+				}
+
+				registers.B = charactersRead;
+
+				if (!newlineRead)
+				{
+					while(std::getchar() != '\n');
+				}
+			},
 		};
 	}
 }