java - How to use org.jf.dexlib2 get instructions’ byte code in a dexfile -

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i want instruction's byte code,but code can opcode's byte code.such 0x38 01 fb ff means if-eqz v1, -0x5.i can 0x38 means if-eqz ,but don't know how 0x01 fb ff means v1, -0x5

for (classdef classdef: dexfile.getclasses()){     (method method : classdef.getmethods()){         if (method.getimplementation()==null)                 continue;         (instruction :method.getimplementation().getinstructions()){             i.getopcode().values();         }     } }

you can use baksmali's -d option print annotated hex dump of dex file. produce 2-column hex dump, left column containing raw byte values, , right column containing annotations bytes are, per dex specification.

for example:

> baksmali -n -d penroser.dump penroser.apk > less penroser.dump  ... (lots of other stuff :))                             |[26] code_item: lafzkl/development/mcolorpicker/views/colorpickerview;->pointtohue(f)f 0075f4: 0600               |  registers_size = 6 0075f6: 0200               |  ins_size = 2 0075f8: 0100               |  outs_size = 1 0075fa: 0000               |  tries_size = 0 0075fc: 8690 0100          |  debug_info_off = 0x19086 007600: 2100 0000          |  insns_size = 0x21                            |  instructions: 007604: 1503 b443          |    const/high16 v3, 1135869952 # 360.000000 007608: 5441 1e00          |    iget-object v1, v4, lafzkl/development/mcolorpicker/views/colorpickerview;->mhuerect:landroid/graphics/rectf; 00760c: 6e10 a700 0100     |    invoke-virtual {v1}, landroid/graphics/rectf;->height()f 007612: 0a00               |    move-result v0 007614: 5212 3b00          |    iget v2, v1, landroid/graphics/rectf;->top:f 007618: 2e02 0502          |    cmpg-float v2, v5, v2 00761c: 3b02 0900          |    if-gez v2, +0x9 007620: 1205               |    const/4 v5, 0 007622: a802 0503          |    mul-float v2, v5, v3 007626: c902               |    div-float/2addr v2, v0 007628: a702 0302          |    sub-float v2, v3, v2 00762c: 0f02               |    return v2 00762e: 5212 3800          |    iget v2, v1, landroid/graphics/rectf;->bottom:f 007632: 2d02 0502          |    cmpl-float v2, v5, v2 007636: 3d02 0400          |    if-lez v2, +0x4 00763a: 0105               |    move v5, v0 00763c: 28f3               |    goto -0xd 00763e: 5212 3b00          |    iget v2, v1, landroid/graphics/rectf;->top:f 007642: c725               |    sub-float/2addr v5, v2 007644: 28ef               |    goto -0x11 007646: 0000               |

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