Dokument erweitert

tools/builtInChips/ROM32K.hdl

@@ -1,27 +1,22 @@
 // This file is part of www.nand2tetris.org
 // and the book "The Elements of Computing Systems"
 // by Nisan and Schocken, MIT Press.
-// File name: tools/builtIn/ROM32K.hdl
-
+// File name: tools/builtInChips/ROM32K.hdl
 /**
- * Read-Only memory (ROM) of 16K registers, each 16-bit wide.
- * The chip is designed to facilitate data read, as follows:
+ * Read-Only memory (ROM) of 32K registers, each 16-bit wide.
+ * Facilitates data read, as follows:
  *     out(t) = ROM32K[address(t)](t)
- * In words: the chip always outputs the value stored at the 
+ * In words: the chip outputs the value stored at the 
  * memory location specified by address.
  *
- * The built-in chip implementation has a GUI side-effect, 
- * showing an array-like component that displays the ROM's 
- * contents. The ROM32K chip is supposed to be pre-loaded with 
- * a machine language program. To that end, the built-in chip
- * implementation also knows how to handle the "ROM32K load Xxx"
- * script command, where Xxx is the name of a text file containing 
- * a program written in the Hack machine language.  When the 
- * simulator encounters such a command in a test script, the code 
- * found in the file is loaded into the simulated ROM32K unit.
+ * Can be used to serve as the instruction memory of the Hack computer.
+ * To that end, the built-in chip implementation supports the handling 
+ * of the "ROM32K load Xxx" script command, where Xxx is the name of a
+ * text file containing a program written in the Hack machine language.
+ * When the simulator encounters such a command in a test script,
+ * the code found in the file is loaded into the simulated ROM32K chip.
  */
-
-CHIP ROM32K {
+ CHIP ROM32K {
 
     IN  address[15];
     OUT out[16];