diff options
Diffstat (limited to 'projects/12/MemoryTest/Memory.jack')
| -rw-r--r-- | projects/12/MemoryTest/Memory.jack | 24 |
1 files changed, 6 insertions, 18 deletions
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;
}
}
|