#include "data_block.hh"
#include "data_block_0.hh"
+#include <stdio.h>
+
+using namespace std;
data_block::data_block(tape_block& idol)
:tape_block(idol)
return (new data_block_0(*this))->get_subtype();
else return 0;
}
+
+/*!
+ *\brief Get the block's size in 16 bit words.
+ *\return The block's 16-bit data buffer's size including header and checksum.
+ */
+int data_block::get_word_size(){
+ return word_size;
+}
+
+/*!
+ *\brief Extract 6 byte symbol name from word memory.
+ *
+ *\param startbyte the first byte of the desired symbol name
+ *\return a string containing the symbol name.
+ * Trailing spaces are included.
+ *\note The word_data is handled system-intependently big endian!
+ */
+string data_block::extract_string(int startbyte){
+ string result=""; // Start with empty string
+
+ // We don't accept negative arguments!
+ if (startbyte<0) return result;
+
+ // We also don't want segmentation faults!
+ if (word_size<(startbyte/2+1)) return result;
+
+ // Here we pick out the characters.
+ for (int posi=startbyte;posi<startbyte+6;posi++)
+ result+=(word_data[posi/2]>>(8*(1-posi%2)))&0x7f;
+ return result;
+}