Hi There Pros  
  
I am new and want learn how to patch by myself. after reading some guides and watching tutorials i started the process.  
1. downloaded aisle from https://bitbucket.org/RehabMan/acpica/downloads/ - than copied it like i should on terminal: sudo cp iasl /usr/bin  
2. dowloaded refs.txt from this guide:  
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 3. got my origin dsdt ssdt files - from clover boot screen with F4  
4. tried to disassemble with terminal : iasl -da -dl -fe refs.txt DSDT.aml SSDT*.aml  
  
but than got this massage:  
  
its the end of it:  
Pass 1 parse of [sSDT]  
Pass 2 parse of [sSDT]  
External object resolution file       SSDT-0.aml  
Input file SSDT-0.aml, Length 0x3A3 (931) bytes  
ACPI: SSDT 0x0000000000000000 0003A3 (v01 ALASKA A M I    00001000 INTL 20160422)  
Pass 1 parse of [sSDT]  
Pass 2 parse of [sSDT]  
refs.txt: Importing method external (1 arguments) MDBG  
refs.txt: Importing method external (0 arguments) _GPE.MMTB  
refs.txt: Importing method external (2 arguments) _SB.PCI0.LPCB.H_EC.ECWT  
refs.txt: Importing method external (1 arguments) _SB.PCI0.LPCB.H_EC.ECRD  
refs.txt: Importing method external (1 arguments) _SB.PCI0.LPCB.H_EC.ECMD  
refs.txt: Importing method external (2 arguments) _SB.PCI0.PEG0.PEGP.SGPO  
refs.txt: Importing method external (1 arguments) _SB.PCI0.GFX0.DD02._BCM  
refs.txt: Importing method external (4 arguments) _SB.PCI0.SAT0.SDSM  
refs.txt: Importing method external (3 arguments) _GPE.VHOV  
refs.txt: Importing method external (2 arguments) _SB.PCI0.XHC.RHUB.TPLD  
iASL: Segmentation Fault  
iASL: Terminating  
Tech-Mac-Pro:origin tech$  
  
  
What went wrong?  
  
Thanks a lot guys