add some comments

ProjectOpenSea · Mar 12, 2024 · b724932 · b724932
1 parent 55559b2
commit b724932
Show file tree

Hide file tree

Showing 2 changed files with 19 additions and 2 deletions.
diff --git a/package.json b/package.json
@@ -1,6 +1,6 @@
 {
   "name": "seaport-types",
-  "version": "1.6.2",
+  "version": "1.6.3",
   "description": "Core types and interfaces for Seaport",
   "main": "src/",
   "repository": "https://github.com/ProjectOpenSea/seaport-types.git",

diff --git a/src/lib/ConsiderationConstants.sol b/src/lib/ConsiderationConstants.sol
@@ -49,8 +49,25 @@ uint256 constant information_versionLengthPtr = 0x63;
 uint256 constant information_versionWithLength = 0x03312e36; // 1.6
 uint256 constant information_length = 0xa0;
 
+// uint256(uint32(bytes4(keccak256("_REENTRANCY_GUARD_SLOT"))))
 uint256 constant _REENTRANCY_GUARD_SLOT = 0x929eee14;
-uint256 constant _TLOAD_TEST_PAYLOAD = 0x6002601e613d5c3d52f3;
+
+/*
+ *
+ * --------------------------------------------------------------------------+
+ * Opcode      | Mnemonic         | Stack               | Memory             |
+ * --------------------------------------------------------------------------|
+ * 60 0x02     | PUSH1 0x02       | 0x02                |                    |
+ * 60 0x1e     | PUSH1 0x1e       | 0x1e 0x02           |                    |
+ * 61 0x3d5c   | PUSH2 0x3d5c     | 0x3d5c 0x1e 0x02    |                    |
+ * 3d          | RETURNDATASIZE   | 0 0x3d5c 0x1e 0x02  |                    |
+ *                                                                           |
+ * ::: store deployed bytecode in memory: (3d) RETURNDATASIZE (5c) TLOAD ::: |
+ * 52          | MSTORE           | 0x1e 0x02           | [0..0x20): 0x3d5c  |
+ * f3          | RETURN           |                     | [0..0x20): 0x3d5c  |
+ * --------------------------------------------------------------------------+
+ */
+uint256 constant _TLOAD_TEST_PAYLOAD = 0x6002_601e_613d5c_3d_52_f3;
 uint256 constant _TLOAD_TEST_PAYLOAD_LENGTH = 0x0a;
 uint256 constant _TLOAD_TEST_PAYLOAD_OFFSET = 0x16;
 uint256 constant _NOT_ENTERED_TSTORE = 0;