moved state and vm to core

2015-03-23 16:59:09 +01:00
parent d7eaa97a29
commit 0330077d76
58 changed files with 40 additions and 40 deletions
@@ -0,0 +1,20 @@
+package vm
+
+import "gopkg.in/fatih/set.v0"
+
+func analyseJumpDests(code []byte) (dests *set.Set) {
+	dests = set.New()
+
+	for pc := uint64(0); pc < uint64(len(code)); pc++ {
+		var op OpCode = OpCode(code[pc])
+		switch op {
+		case PUSH1, PUSH2, PUSH3, PUSH4, PUSH5, PUSH6, PUSH7, PUSH8, PUSH9, PUSH10, PUSH11, PUSH12, PUSH13, PUSH14, PUSH15, PUSH16, PUSH17, PUSH18, PUSH19, PUSH20, PUSH21, PUSH22, PUSH23, PUSH24, PUSH25, PUSH26, PUSH27, PUSH28, PUSH29, PUSH30, PUSH31, PUSH32:
+			a := uint64(op) - uint64(PUSH1) + 1
+
+			pc += a
+		case JUMPDEST:
+			dests.Add(pc)
+		}
+	}
+	return
+}