diff options
| -rw-r--r-- | projects/12/Array.jack | 2 | ||||
| -rw-r--r-- | projects/12/ArrayTest/Array.jack | 26 | ||||
| -rw-r--r-- | projects/12/ArrayTest/Array.vm | 12 | ||||
| -rw-r--r-- | projects/12/ArrayTest/ArrayTest.out | 2 | ||||
| -rw-r--r-- | projects/12/ArrayTest/Main.vm | 131 | ||||
| -rw-r--r-- | projects/12/MemoryTest/Memory.jack | 24 | ||||
| -rw-r--r-- | projects/12/MemoryTest/Memory.vm | 118 | ||||
| -rw-r--r-- | projects/12/Sys.jack | 19 | ||||
| -rw-r--r-- | projects/12/SysTest/Main.vm | 281 | ||||
| -rw-r--r-- | projects/12/SysTest/Sys.jack | 51 | ||||
| -rw-r--r-- | projects/12/SysTest/Sys.vm | 74 |
11 files changed, 611 insertions, 129 deletions
diff --git a/projects/12/Array.jack b/projects/12/Array.jack index ee31129..c712b69 100644 --- a/projects/12/Array.jack +++ b/projects/12/Array.jack @@ -15,9 +15,11 @@ class Array { /** Constructs a new Array of the given size. */
function Array new(int size) {
+ return Memory.alloc(size);
}
/** Disposes this array. */
method void dispose() {
+ return Memory.deAlloc(this);
}
}
diff --git a/projects/12/ArrayTest/Array.jack b/projects/12/ArrayTest/Array.jack new file mode 100644 index 0000000..343c25c --- /dev/null +++ b/projects/12/ArrayTest/Array.jack @@ -0,0 +1,26 @@ +// This file is part of www.nand2tetris.org
+// and the book "The Elements of Computing Systems"
+// by Nisan and Schocken, MIT Press.
+// File name: projects/12/Array.jack
+
+/**
+ * Represents an array.
+ * In the Jack language, arrays are instances of the Array class.
+ * Once declared, the array entries can be accessed using the usual
+ * syntax arr[i]. Each array entry can hold a primitive data type as
+ * well as any object type. Different array entries can have different
+ * data types.
+ */
+class Array {
+
+ /** Constructs a new Array of the given size. */
+ function Array new(int size) {
+ return Memory.alloc(size);
+ }
+
+ /** Disposes this array. */
+ method void dispose() {
+ do Memory.deAlloc(this);
+ return;
+ }
+}
diff --git a/projects/12/ArrayTest/Array.vm b/projects/12/ArrayTest/Array.vm new file mode 100644 index 0000000..c0cd797 --- /dev/null +++ b/projects/12/ArrayTest/Array.vm @@ -0,0 +1,12 @@ +function Array.new 0 +push argument 0 +call Memory.alloc 1 +return +function Array.dispose 0 +push argument 0 +pop pointer 0 +push pointer 0 +call Memory.deAlloc 1 +pop temp 0 +push constant 0 +return diff --git a/projects/12/ArrayTest/ArrayTest.out b/projects/12/ArrayTest/ArrayTest.out new file mode 100644 index 0000000..e9f4e75 --- /dev/null +++ b/projects/12/ArrayTest/ArrayTest.out @@ -0,0 +1,2 @@ +|RAM[8000]|RAM[8001]|RAM[8002]|RAM[8003]| +| 222 | 122 | 100 | 10 | diff --git a/projects/12/ArrayTest/Main.vm b/projects/12/ArrayTest/Main.vm new file mode 100644 index 0000000..141f20a --- /dev/null +++ b/projects/12/ArrayTest/Main.vm @@ -0,0 +1,131 @@ +function Main.main 4 +push constant 8000 +pop local 0 +push constant 3 +call Array.new 1 +pop local 1 +push constant 2 +push local 1 +add +push constant 222 +pop temp 0 +pop pointer 1 +push temp 0 +pop that 0 +push constant 0 +push local 0 +add +push constant 2 +push local 1 +add +pop pointer 1 +push that 0 +pop temp 0 +pop pointer 1 +push temp 0 +pop that 0 +push constant 3 +call Array.new 1 +pop local 2 +push constant 1 +push local 2 +add +push constant 2 +push local 1 +add +pop pointer 1 +push that 0 +push constant 100 +sub +pop temp 0 +pop pointer 1 +push temp 0 +pop that 0 +push constant 1 +push local 0 +add +push constant 1 +push local 2 +add +pop pointer 1 +push that 0 +pop temp 0 +pop pointer 1 +push temp 0 +pop that 0 +push constant 500 +call Array.new 1 +pop local 3 +push constant 499 +push local 3 +add +push constant 2 +push local 1 +add +pop pointer 1 +push that 0 +push constant 1 +push local 2 +add +pop pointer 1 +push that 0 +sub +pop temp 0 +pop pointer 1 +push temp 0 +pop that 0 +push constant 2 +push local 0 +add +push constant 499 +push local 3 +add +pop pointer 1 +push that 0 +pop temp 0 +pop pointer 1 +push temp 0 +pop that 0 +push local 1 +call Array.dispose 1 +pop temp 0 +push local 2 +call Array.dispose 1 +pop temp 0 +push constant 3 +call Array.new 1 +pop local 2 +push constant 0 +push local 2 +add +push constant 499 +push local 3 +add +pop pointer 1 +push that 0 +push constant 90 +sub +pop temp 0 +pop pointer 1 +push temp 0 +pop that 0 +push constant 3 +push local 0 +add +push constant 0 +push local 2 +add +pop pointer 1 +push that 0 +pop temp 0 +pop pointer 1 +push temp 0 +pop that 0 +push local 3 +call Array.dispose 1 +pop temp 0 +push local 2 +call Array.dispose 1 +pop temp 0 +push constant 0 +return diff --git a/projects/12/MemoryTest/Memory.jack b/projects/12/MemoryTest/Memory.jack index 8583b62..54e04aa 100644 --- a/projects/12/MemoryTest/Memory.jack +++ b/projects/12/MemoryTest/Memory.jack @@ -11,7 +11,7 @@ class Memory {
static Array memory;
static Array heap;
- static int first;
+ static int last;
/** Initializes the class. */
function void init() {
@@ -19,6 +19,7 @@ class Memory { let heap = 2048;
let heap[0] = -1;
let heap[1] = 14334;
+ let last = 0;
return;
}
@@ -62,23 +63,10 @@ class Memory { * it available for future allocations. */
function void deAlloc(Array o) {
var int oBase;
- var int current;
- var int prev;
- let prev = 0;
- let current = heap[prev];
let oBase = o - heap - 2;
- while ((current > -1) & (~(current = oBase))){
- let prev = current;
- let current = heap[current];
- }
- if (current = -1) {
- do String.println("The impossible happened");
- do Sys.error(1);
- return;
- } else {
- let heap[prev] = heap[current];
- let heap[prev + 1] = heap[prev] - prev - 2;
- return;
- }
+ let heap[oBase] = -1;
+ let heap[last] = oBase;
+ let last = oBase;
+ return;
}
}
diff --git a/projects/12/MemoryTest/Memory.vm b/projects/12/MemoryTest/Memory.vm index c7410fc..0570b46 100644 --- a/projects/12/MemoryTest/Memory.vm +++ b/projects/12/MemoryTest/Memory.vm @@ -21,6 +21,8 @@ pop pointer 1 push temp 0 pop that 0 push constant 0 +pop static 2 +push constant 0 return function Memory.peek 0 push argument 0 @@ -226,137 +228,31 @@ push constant 2 add return label IF_END0 -function Memory.deAlloc 3 -push constant 0 -pop local 2 -push local 2 -push static 1 -add -pop pointer 1 -push that 0 -pop local 1 +function Memory.deAlloc 1 push argument 0 push static 1 sub push constant 2 sub pop local 0 -label WHILE_EXP0 -push local 1 -push constant 1 -neg -gt -push local 1 push local 0 -eq -not -and -not -if-goto WHILE_END0 -push local 1 -pop local 2 -push local 1 push static 1 add -pop pointer 1 -push that 0 -pop local 1 -goto WHILE_EXP0 -label WHILE_END0 -push local 1 push constant 1 neg -eq -if-goto IF_TRUE0 -goto IF_FALSE0 -label IF_TRUE0 -push constant 23 -call String.new 1 -push constant 84 -call String.appendChar 2 -push constant 104 -call String.appendChar 2 -push constant 101 -call String.appendChar 2 -push constant 32 -call String.appendChar 2 -push constant 105 -call String.appendChar 2 -push constant 109 -call String.appendChar 2 -push constant 112 -call String.appendChar 2 -push constant 111 -call String.appendChar 2 -push constant 115 -call String.appendChar 2 -push constant 115 -call String.appendChar 2 -push constant 105 -call String.appendChar 2 -push constant 98 -call String.appendChar 2 -push constant 108 -call String.appendChar 2 -push constant 101 -call String.appendChar 2 -push constant 32 -call String.appendChar 2 -push constant 104 -call String.appendChar 2 -push constant 97 -call String.appendChar 2 -push constant 112 -call String.appendChar 2 -push constant 112 -call String.appendChar 2 -push constant 101 -call String.appendChar 2 -push constant 110 -call String.appendChar 2 -push constant 101 -call String.appendChar 2 -push constant 100 -call String.appendChar 2 -call String.println 1 -pop temp 0 -push constant 1 -call Sys.error 1 -pop temp 0 -push constant 0 -return -goto IF_END0 -label IF_FALSE0 -push local 2 -push static 1 -add -push local 1 -push static 1 -add -pop pointer 1 -push that 0 pop temp 0 pop pointer 1 push temp 0 pop that 0 -push local 2 -push constant 1 -add -push static 1 -add -push local 2 +push static 2 push static 1 add -pop pointer 1 -push that 0 -push local 2 -sub -push constant 2 -sub +push local 0 pop temp 0 pop pointer 1 push temp 0 pop that 0 +push local 0 +pop static 2 push constant 0 return -label IF_END0 diff --git a/projects/12/Sys.jack b/projects/12/Sys.jack index bee6f67..d6b99f6 100644 --- a/projects/12/Sys.jack +++ b/projects/12/Sys.jack @@ -10,18 +10,37 @@ class Sys { /** Performs all the initializations required by the OS. */
function void init() {
+ do Array.init();
+ do Keyboard.init();
+ do Math.init();
+ do Memory.init();
+ do Output.init();
+ do Screen.init();
+ do String.init();
+ do Main.main();
}
/** Halts the program execution. */
function void halt() {
+ while (true){
+ }
+ return;
}
/** Waits approximately duration milliseconds and returns. */
function void wait(int duration) {
+ Output.printString("waiting")
+ let i = 0;
+ while (i < 50000){
+ let i = i + 1;
+ }
+ Output.printString("done")
}
/** Displays the given error code in the form "ERR<errorCode>",
* and halts the program's execution. */
function void error(int errorCode) {
+ Output.printString("ERR");
+ Output.printInt(errorCode);
}
}
diff --git a/projects/12/SysTest/Main.vm b/projects/12/SysTest/Main.vm new file mode 100644 index 0000000..4890e2f --- /dev/null +++ b/projects/12/SysTest/Main.vm @@ -0,0 +1,281 @@ +function Main.main 1 +push constant 10 +call String.new 1 +push constant 87 +call String.appendChar 2 +push constant 97 +call String.appendChar 2 +push constant 105 +call String.appendChar 2 +push constant 116 +call String.appendChar 2 +push constant 32 +call String.appendChar 2 +push constant 116 +call String.appendChar 2 +push constant 101 +call String.appendChar 2 +push constant 115 +call String.appendChar 2 +push constant 116 +call String.appendChar 2 +push constant 58 +call String.appendChar 2 +call Output.printString 1 +pop temp 0 +call Output.println 0 +pop temp 0 +push constant 64 +call String.new 1 +push constant 80 +call String.appendChar 2 +push constant 114 +call String.appendChar 2 +push constant 101 +call String.appendChar 2 +push constant 115 +call String.appendChar 2 +push constant 115 +call String.appendChar 2 +push constant 32 +call String.appendChar 2 +push constant 97 +call String.appendChar 2 +push constant 110 +call String.appendChar 2 +push constant 121 +call String.appendChar 2 +push constant 32 +call String.appendChar 2 +push constant 107 +call String.appendChar 2 +push constant 101 +call String.appendChar 2 +push constant 121 +call String.appendChar 2 +push constant 46 +call String.appendChar 2 +push constant 32 +call String.appendChar 2 +push constant 65 +call String.appendChar 2 +push constant 102 +call String.appendChar 2 +push constant 116 +call String.appendChar 2 +push constant 101 +call String.appendChar 2 +push constant 114 +call String.appendChar 2 +push constant 32 +call String.appendChar 2 +push constant 50 +call String.appendChar 2 +push constant 32 +call String.appendChar 2 +push constant 115 +call String.appendChar 2 +push constant 101 +call String.appendChar 2 +push constant 99 +call String.appendChar 2 +push constant 111 +call String.appendChar 2 +push constant 110 +call String.appendChar 2 +push constant 100 +call String.appendChar 2 +push constant 115 +call String.appendChar 2 +push constant 44 +call String.appendChar 2 +push constant 32 +call String.appendChar 2 +push constant 97 +call String.appendChar 2 +push constant 110 +call String.appendChar 2 +push constant 111 +call String.appendChar 2 +push constant 116 +call String.appendChar 2 +push constant 104 +call String.appendChar 2 +push constant 101 +call String.appendChar 2 +push constant 114 +call String.appendChar 2 +push constant 32 +call String.appendChar 2 +push constant 109 +call String.appendChar 2 +push constant 101 +call String.appendChar 2 +push constant 115 +call String.appendChar 2 +push constant 115 +call String.appendChar 2 +push constant 97 +call String.appendChar 2 +push constant 103 +call String.appendChar 2 +push constant 101 +call String.appendChar 2 +push constant 32 +call String.appendChar 2 +push constant 119 +call String.appendChar 2 +push constant 105 +call String.appendChar 2 +push constant 108 +call String.appendChar 2 +push constant 108 +call String.appendChar 2 +push constant 32 +call String.appendChar 2 +push constant 98 +call String.appendChar 2 +push constant 101 +call String.appendChar 2 +push constant 32 +call String.appendChar 2 +push constant 112 +call String.appendChar 2 +push constant 114 +call String.appendChar 2 +push constant 105 +call String.appendChar 2 +push constant 110 +call String.appendChar 2 +push constant 116 +call String.appendChar 2 +push constant 101 +call String.appendChar 2 +push constant 100 +call String.appendChar 2 +push constant 58 +call String.appendChar 2 +call Output.printString 1 +pop temp 0 +label WHILE_EXP0 +push local 0 +push constant 0 +eq +not +if-goto WHILE_END0 +call Keyboard.keyPressed 0 +pop local 0 +goto WHILE_EXP0 +label WHILE_END0 +label WHILE_EXP1 +push local 0 +push constant 0 +eq +not +not +if-goto WHILE_END1 +call Keyboard.keyPressed 0 +pop local 0 +goto WHILE_EXP1 +label WHILE_END1 +push constant 2000 +call Sys.wait 1 +pop temp 0 +call Output.println 0 +pop temp 0 +push constant 45 +call String.new 1 +push constant 84 +call String.appendChar 2 +push constant 105 +call String.appendChar 2 +push constant 109 +call String.appendChar 2 +push constant 101 +call String.appendChar 2 +push constant 32 +call String.appendChar 2 +push constant 105 +call String.appendChar 2 +push constant 115 +call String.appendChar 2 +push constant 32 +call String.appendChar 2 +push constant 117 +call String.appendChar 2 +push constant 112 +call String.appendChar 2 +push constant 46 +call String.appendChar 2 +push constant 32 +call String.appendChar 2 +push constant 77 +call String.appendChar 2 +push constant 97 +call String.appendChar 2 +push constant 107 +call String.appendChar 2 +push constant 101 +call String.appendChar 2 +push constant 32 +call String.appendChar 2 +push constant 115 +call String.appendChar 2 +push constant 117 +call String.appendChar 2 +push constant 114 +call String.appendChar 2 +push constant 101 +call String.appendChar 2 +push constant 32 +call String.appendChar 2 +push constant 116 +call String.appendChar 2 +push constant 104 +call String.appendChar 2 +push constant 97 +call String.appendChar 2 +push constant 116 +call String.appendChar 2 +push constant 32 +call String.appendChar 2 +push constant 50 +call String.appendChar 2 +push constant 32 +call String.appendChar 2 +push constant 115 +call String.appendChar 2 +push constant 101 +call String.appendChar 2 +push constant 99 +call String.appendChar 2 +push constant 111 +call String.appendChar 2 +push constant 110 +call String.appendChar 2 +push constant 100 +call String.appendChar 2 +push constant 115 +call String.appendChar 2 +push constant 32 +call String.appendChar 2 +push constant 101 +call String.appendChar 2 +push constant 108 +call String.appendChar 2 +push constant 97 +call String.appendChar 2 +push constant 112 +call String.appendChar 2 +push constant 115 +call String.appendChar 2 +push constant 101 +call String.appendChar 2 +push constant 100 +call String.appendChar 2 +push constant 46 +call String.appendChar 2 +call Output.printString 1 +pop temp 0 +push constant 0 +return diff --git a/projects/12/SysTest/Sys.jack b/projects/12/SysTest/Sys.jack new file mode 100644 index 0000000..53c078c --- /dev/null +++ b/projects/12/SysTest/Sys.jack @@ -0,0 +1,51 @@ +// This file is part of www.nand2tetris.org
+// and the book "The Elements of Computing Systems"
+// by Nisan and Schocken, MIT Press.
+// File name: projects/12/Sys.jack
+
+/**
+ * A library that supports various program execution services.
+ */
+class Sys {
+
+ /** Performs all the initializations required by the OS. */
+ function void init() {
+ do Keyboard.init();
+ do Math.init();
+ do Memory.init();
+ do Output.init();
+ do Screen.init();
+ do Main.main();
+ do Sys.halt();
+ return;
+ }
+
+ /** Halts the program execution. */
+ function void halt() {
+ while (true){
+ }
+ return;
+ }
+
+ /** Waits approximately duration milliseconds and returns. */
+ function void wait(int duration) {
+ var int i, j;
+ let i = 0;
+ while (i < duration){
+ let i = i + 1;
+ let j = 0;
+ while (j < 318){
+ let j = j + 1;
+ }
+ }
+ return;
+ }
+
+ /** Displays the given error code in the form "ERR<errorCode>",
+ * and halts the program's execution. */
+ function void error(int errorCode) {
+ do Output.printString("ERR");
+ do Output.printInt(errorCode);
+ return;
+ }
+}
diff --git a/projects/12/SysTest/Sys.vm b/projects/12/SysTest/Sys.vm new file mode 100644 index 0000000..fec2862 --- /dev/null +++ b/projects/12/SysTest/Sys.vm @@ -0,0 +1,74 @@ +function Sys.init 0 +call Keyboard.init 0 +pop temp 0 +call Math.init 0 +pop temp 0 +call Memory.init 0 +pop temp 0 +call Output.init 0 +pop temp 0 +call Screen.init 0 +pop temp 0 +call Main.main 0 +pop temp 0 +call Sys.halt 0 +pop temp 0 +push constant 0 +return +function Sys.halt 0 +label WHILE_EXP0 +push constant 0 +not +not +if-goto WHILE_END0 +goto WHILE_EXP0 +label WHILE_END0 +push constant 0 +return +function Sys.wait 2 +push constant 0 +pop local 0 +label WHILE_EXP0 +push local 0 +push argument 0 +lt +not +if-goto WHILE_END0 +push local 0 +push constant 1 +add +pop local 0 +push constant 0 +pop local 1 +label WHILE_EXP1 +push local 1 +push constant 318 +lt +not +if-goto WHILE_END1 +push local 1 +push constant 1 +add +pop local 1 +goto WHILE_EXP1 +label WHILE_END1 +goto WHILE_EXP0 +label WHILE_END0 +push constant 0 +return +function Sys.error 0 +push constant 3 +call String.new 1 +push constant 69 +call String.appendChar 2 +push constant 82 +call String.appendChar 2 +push constant 82 +call String.appendChar 2 +call Output.printString 1 +pop temp 0 +push argument 0 +call Output.printInt 1 +pop temp 0 +push constant 0 +return |