Prevent wrong burst size calculation.

For the case of a single x4 device the value assigned to "bytesPerBurst" would
be zero because of integer division.

DRAMSys/simulator/src/simulation/Dram.h

@@ -68,8 +68,10 @@ struct Dram : sc_module
     unsigned int burstLength  = Configuration::getInstance().memSpec.BurstLength;
     // All DRAM chips on a DIMM operate in lockstep,
     // which constituing aggregate data bus width = chip's bus width * # locksteep-operated chips
+    // The bus width is given in bits, e.g., 64-bit data bus, 128-bit data bus, etc.
     unsigned int dataBusWidth = Configuration::getInstance().memSpec.bitWidth * Configuration::getInstance().NumberOfDevicesOnDIMM;
-    unsigned int bytesPerBurst = burstLength * (dataBusWidth / 8);
+    // First multiply to get the number of bits in a burst, then divide by 8 to get the value in bytes (the order is important. Think on a single x4 device)
+    unsigned int bytesPerBurst = (burstLength * dataBusWidth) / 8;
 
     // TLM Related:
     tlm_utils::simple_target_socket<Dram> tSocket;