simulator: implement intFlashCompare()

Author: dron0gus

simulator/main.cpp

@@ -261,6 +261,33 @@ bool intFlashIsErased(flashaddr_t address, size_t size) {
 	return true;
 }
 
+bool intFlashCompare(flashaddr_t address, const char* buffer, size_t size) {
+	auto fileName = makeFileName(address);
+
+	printf("Simulator: comparing with config from %s\n", fileName.c_str());
+
+	std::ifstream flash;
+	flash.open(fileName, std::ios::binary);
+
+	if (!flash.is_open()) {
+		return false;
+	}
+
+	char ch;
+	bool same = true;
+	size_t checked = 0;
+	while (same && checked < size && flash.get(ch)) {
+		if (static_cast<unsigned char>(ch) != buffer[checked]) {
+			same = false;
+		}
+		checked++;
+	}
+
+	flash.close();
+
+	return same;
+}
+
 int intFlashErase(flashaddr_t address, size_t) {
 	// Try to delete the file, swallow any errors (we can overwrite it anyway)
 	try {