sgdasm example #2

rc4_example.php

<?php

/* Auto-generated by SGDasm (PHP: 80000; Bytecode: v31) */

function foo($key, $str)
{
    /*
        foo:
             ; (lines=70, args=2, vars=8, tmps=51)
             ; rc4_example.obf.php:2-26
        0000 CV0($key) = RECV 1 1022
        0001 CV1($str) = RECV 2 1022
        0002 X0 = ASSIGN CV2($s) array()
        0003 X1 = ASSIGN CV3($i) int(0)
        0004 X0 = JMP 0008
        0005 X2 = ASSIGN_DIM CV2($s) CV3($i)
        0006 X0 = OP_DATA CV3($i)
        0007 X3 = PRE_INC CV3($i)
        0008 T12 = IS_SMALLER CV3($i) int(256)
        0009 X0 = JMPNZ T12 0005
        0010 X5 = ASSIGN CV4($j) int(0)
        0011 X6 = ASSIGN CV3($i) int(0)
        0012 X0 = JMP 0032
        0013 T15 = FETCH_DIM_R CV2($s) CV3($i)
        0014 T16 = ADD CV4($j) T15
        0015 X0 = INIT_FCALL 1 1 string("ord")
        0016 T17 = STRLEN CV0($key)
        0017 T18 = MOD CV3($i) T17
        0018 T19 = FETCH_DIM_R CV0($key) T18
        0019 X0 = SEND_VAL T19
        0020 V20 = DO_ICALL
        0021 T21 = ADD T16 V20
        0022 T22 = MOD T21 int(256)
        0023 X15 = ASSIGN CV4($j) T22
        0024 T24 = FETCH_DIM_R CV2($s) CV3($i)
        0025 X17 = ASSIGN CV5($x) T24
        0026 T27 = FETCH_DIM_R CV2($s) CV4($j)
        0027 X18 = ASSIGN_DIM CV2($s) CV3($i)
        0028 X0 = OP_DATA T27
        0029 X20 = ASSIGN_DIM CV2($s) CV4($j)
        0030 X0 = OP_DATA CV5($x)
        0031 X21 = PRE_INC CV3($i)
        0032 T30 = IS_SMALLER CV3($i) int(256)
        0033 X0 = JMPNZ T30 0013
        0034 X23 = ASSIGN CV3($i) int(0)
        0035 X24 = ASSIGN CV4($j) int(0)
        0036 X25 = ASSIGN CV6($res) string("")
        0037 X26 = ASSIGN CV7($y) int(0)
        0038 X0 = JMP 0065
        0039 T35 = ADD CV3($i) int(1)
        0040 T36 = MOD T35 int(256)
        0041 X29 = ASSIGN CV3($i) T36
        0042 T38 = FETCH_DIM_R CV2($s) CV3($i)
        0043 T39 = ADD CV4($j) T38
        0044 T40 = MOD T39 int(256)
        0045 X33 = ASSIGN CV4($j) T40
        0046 T42 = FETCH_DIM_R CV2($s) CV3($i)
        0047 X35 = ASSIGN CV5($x) T42
        0048 T45 = FETCH_DIM_R CV2($s) CV4($j)
        0049 X36 = ASSIGN_DIM CV2($s) CV3($i)
        0050 X0 = OP_DATA T45
        0051 X38 = ASSIGN_DIM CV2($s) CV4($j)
        0052 X0 = OP_DATA CV5($x)
        0053 T47 = FETCH_DIM_R CV1($str) CV7($y)
        0054 X1 = INIT_FCALL 1 1 string("chr")
        0055 T48 = FETCH_DIM_R CV2($s) CV3($i)
        0056 T49 = FETCH_DIM_R CV2($s) CV4($j)
        0057 T50 = ADD T48 T49
        0058 T51 = MOD T50 int(256)
        0059 T52 = FETCH_DIM_R CV2($s) T51
        0060 X0 = SEND_VAL T52
        0061 V53 = DO_ICALL
        0062 T54 = BW_XOR V53 T47
        0063 X47 = ASSIGN_OP 8 CV6($res) T54
        0064 X48 = PRE_INC CV7($y)
        0065 T57 = STRLEN CV1($str)
        0066 T58 = IS_SMALLER CV7($y) T57
        0067 X0 = JMPNZ T58 0039
        0068 X0 = RETURN CV6($res)
        0069 X0 = RETURN null
    */
}