mirror of
https://gitlab.com/pulsechaincom/erigon-pulse.git
synced 2025-01-03 17:44:29 +00:00
21 lines
576 B
Go
21 lines
576 B
Go
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
|
|
}
|