110 lines
2.2 KiB
Go
110 lines
2.2 KiB
Go
package ethutil
|
|
|
|
import (
|
|
"math/big"
|
|
"strconv"
|
|
)
|
|
|
|
// Op codes
|
|
var OpCodes = map[string]byte{
|
|
"STOP": 0x00,
|
|
"ADD": 0x01,
|
|
"MUL": 0x02,
|
|
"SUB": 0x03,
|
|
"DIV": 0x04,
|
|
"SDIV": 0x05,
|
|
"MOD": 0x06,
|
|
"SMOD": 0x07,
|
|
"EXP": 0x08,
|
|
"NEG": 0x09,
|
|
"LT": 0x0a,
|
|
"LE": 0x0b,
|
|
"GT": 0x0c,
|
|
"GE": 0x0d,
|
|
"EQ": 0x0e,
|
|
"NOT": 0x0f,
|
|
"MYADDRESS": 0x10,
|
|
"TXSENDER": 0x11,
|
|
"TXVALUE": 0x12,
|
|
"TXDATAN": 0x13,
|
|
"TXDATA": 0x14,
|
|
"BLK_PREVHASH": 0x15,
|
|
"BLK_COINBASE": 0x16,
|
|
"BLK_TIMESTAMP": 0x17,
|
|
"BLK_NUMBER": 0x18,
|
|
"BLK_DIFFICULTY": 0x19,
|
|
"BLK_NONCE": 0x1a,
|
|
"BASEFEE": 0x1b,
|
|
"SHA256": 0x20,
|
|
"RIPEMD160": 0x21,
|
|
"ECMUL": 0x22,
|
|
"ECADD": 0x23,
|
|
"ECSIGN": 0x24,
|
|
"ECRECOVER": 0x25,
|
|
"ECVALID": 0x26,
|
|
"SHA3": 0x27,
|
|
"PUSH": 0x30,
|
|
"POP": 0x31,
|
|
"DUP": 0x32,
|
|
"SWAP": 0x33,
|
|
"MLOAD": 0x34,
|
|
"MSTORE": 0x35,
|
|
"SLOAD": 0x36,
|
|
"SSTORE": 0x37,
|
|
"JMP": 0x38,
|
|
"JMPI": 0x39,
|
|
"IND": 0x3a,
|
|
"EXTRO": 0x3b,
|
|
"BALANCE": 0x3c,
|
|
"MKTX": 0x3d,
|
|
"SUICIDE": 0x3f,
|
|
|
|
// TODO FIX OPCODES
|
|
"CALL": 0x40,
|
|
"RETURN": 0x41,
|
|
}
|
|
|
|
func IsOpCode(s string) bool {
|
|
for key, _ := range OpCodes {
|
|
if key == s {
|
|
return true
|
|
}
|
|
}
|
|
return false
|
|
}
|
|
|
|
func CompileInstr(s string) ([]byte, error) {
|
|
isOp := IsOpCode(s)
|
|
if isOp {
|
|
return []byte{OpCodes[s]}, nil
|
|
}
|
|
|
|
num := new(big.Int)
|
|
_, success := num.SetString(s, 0)
|
|
// Assume regular bytes during compilation
|
|
if !success {
|
|
num.SetBytes([]byte(s))
|
|
}
|
|
|
|
return num.Bytes(), nil
|
|
}
|
|
|
|
func Instr(instr string) (int, []string, error) {
|
|
|
|
base := new(big.Int)
|
|
base.SetString(instr, 0)
|
|
|
|
args := make([]string, 7)
|
|
for i := 0; i < 7; i++ {
|
|
// int(int(val) / int(math.Pow(256,float64(i)))) % 256
|
|
exp := BigPow(256, i)
|
|
num := new(big.Int)
|
|
num.Div(base, exp)
|
|
|
|
args[i] = num.Mod(num, big.NewInt(256)).String()
|
|
}
|
|
op, _ := strconv.Atoi(args[0])
|
|
|
|
return op, args[1:7], nil
|
|
}
|