flashrom v0.9.7-r1711 on Darwin 12.5.0 (x86_64) flashrom is free software, get the source code at http://www.flashrom.org
flashrom was built with libpci 3.2.0, LLVM Clang 4.2 (clang-425.0.28), little endian Command line (5 args): ~/Applications/DPCIManager_ML/DPCIManager.app/Contents/MacOS/flashrom -VV -r ~/ASUSTeK P8H67 3706.rom -p internal Calibrating delay loop... OS timer resolution is 1 usecs, 514M loops per second, 10 myus = 11 us, 100 myus = 101 us, 1000 myus = 1005 us, 10000 myus = 9992 us, 4 myus = 4 us, OK. Initializing internal programmer Mapping low megabyte at 0x0000000000000400, unaligned size 0xffc00. Mapping low megabyte, 0xffc00 bytes at unaligned 0x0000000000000400. No coreboot table found. DMI string system-manufacturer: "System manufacturer" DMI string system-product-name: "System Product Name" DMI string system-version: "System Version" DMI string baseboard-manufacturer: "ASUSTeK COMPUTER INC." DMI string baseboard-product-name: "P8H67" DMI string baseboard-version: "Rev X.0x" DMI string chassis-type: "Desktop" Found chipset "Intel H67" with PCI ID 8086:1c4a. Enabling flash write... 0xfff80000/0xffb80000 FWH IDSEL: 0x0 0xfff00000/0xffb00000 FWH IDSEL: 0x0 0xffe80000/0xffa80000 FWH IDSEL: 0x1 0xffe00000/0xffa00000 FWH IDSEL: 0x1 0xffd80000/0xff980000 FWH IDSEL: 0x2 0xffd00000/0xff900000 FWH IDSEL: 0x2 0xffc80000/0xff880000 FWH IDSEL: 0x3 0xffc00000/0xff800000 FWH IDSEL: 0x3 0xff700000/0xff300000 FWH IDSEL: 0x4 0xff600000/0xff200000 FWH IDSEL: 0x5 0xff500000/0xff100000 FWH IDSEL: 0x6 0xff400000/0xff000000 FWH IDSEL: 0x7 0xfff80000/0xffb80000 FWH decode enabled 0xfff00000/0xffb00000 FWH decode enabled 0xffe80000/0xffa80000 FWH decode enabled 0xffe00000/0xffa00000 FWH decode enabled 0xffd80000/0xff980000 FWH decode enabled 0xffd00000/0xff900000 FWH decode enabled 0xffc80000/0xff880000 FWH decode enabled 0xffc00000/0xff800000 FWH decode enabled 0xff700000/0xff300000 FWH decode enabled 0xff600000/0xff200000 FWH decode enabled 0xff500000/0xff100000 FWH decode enabled 0xff400000/0xff000000 FWH decode enabled Maximum FWH chip size: 0x100000 bytes BIOS_CNTL = 0x09: BIOS Lock Enable: disabled, BIOS Write Enable: enabled Root Complex Register Block address = 0xfed1c000 GCS = 0xc65: BIOS Interface Lock-Down: enabled, Boot BIOS Straps: 0x3 (SPI) Top Swap : not enabled SPIBAR = 0xfed1c000 + 0x3800 0x04: 0xe008 (HSFS) HSFS: FDONE=0, FCERR=0, AEL=0, BERASE=1, SCIP=0, FDOPSS=1, FDV=1, FLOCKDN=1 Warning: SPI Configuration Lockdown activated. Reading OPCODES... done OP Type Pre-OP op[0]: 0x02, write w/ addr, none op[1]: 0x03, read w/ addr, none op[2]: 0x20, write w/ addr, none op[3]: 0x05, read w/o addr, none op[4]: 0x9f, read w/o addr, none op[5]: 0x01, write w/o addr, none op[6]: 0x00, read w/o addr, none op[7]: 0x00, read w/o addr, none Pre-OP 0: 0x06, Pre-OP 1: 0x00 0x06: 0x0000 (HSFC) HSFC: FGO=0, FCYCLE=0, FDBC=0, SME=0 0x08: 0x003fffc0 (FADDR) 0x50: 0x0000ffff (FRAP) BMWAG 0x00, BMRAG 0x00, BRWA 0xff, BRRA 0xff 0x54: 0x00000000 FREG0: Flash Descriptor region (0x00000000-0x00000fff) is read-write. 0x58: 0x03ff0180 FREG1: BIOS region (0x00180000-0x003fffff) is read-write. 0x5C: 0x017f0001 FREG2: Management Engine region (0x00001000-0x0017ffff) is read-write. 0x60: 0x00001fff FREG3: Gigabit Ethernet region is unused. 0x64: 0x00001fff FREG4: Platform Data region is unused. 0x74: 0x00000000 (PR0 is unused) 0x78: 0x00000000 (PR1 is unused) 0x7C: 0x00000000 (PR2 is unused) 0x80: 0x00000000 (PR3 is unused) 0x84: 0x00000000 (PR4 is unused) 0x90: 0x84 (SSFS) SSFS: SCIP=0, FDONE=1, FCERR=0, AEL=0 0x91: 0xf97f10 (SSFC) SSFC: SCGO=0, ACS=0, SPOP=0, COP=1, DBC=63, SME=0, SCF=1 0x94: 0x0006 (PREOP) 0x96: 0x043b (OPTYPE) 0x98: 0x05200302 (OPMENU) 0x9C: 0x0000019f (OPMENU+4) 0xA0: 0x00000000 (BBAR) 0xC4: 0x00802005 (LVSCC) LVSCC: BES=0x1, WG=1, WSR=0, WEWS=0, EO=0x20, VCL=1 0xC8: 0x00002005 (UVSCC) UVSCC: BES=0x1, WG=1, WSR=0, WEWS=0, EO=0x20, VCL=0 0xD0: 0x00000000 (FPB)
Reading flash descriptors mapped by the chipset via FDOC/FDOD... done. === Content Section === FLVALSIG 0x0ff0a55a FLMAP0 0x02040003 FLMAP1 0x12100206 FLMAP2 0x00210120
--- Details --- NR (Number of Regions): 3 FRBA (Flash Region Base Address): 0x040 NC (Number of Components): 1 FCBA (Flash Component Base Address): 0x030 ISL (ICH/PCH Strap Length): 18 FISBA/FPSBA (Flash ICH/PCH Strap Base Address): 0x100 NM (Number of Masters): 3 FMBA (Flash Master Base Address): 0x060 MSL/PSL (MCH/PROC Strap Length): 1 FMSBA (Flash MCH/PROC Strap Base Address): 0x200
=== Component Section === FLCOMP 0x09300023 FLILL 0x00000000
--- Details --- Component 1 density: 4 MB Component 2 is not used. Read Clock Frequency: 20 MHz Read ID and Status Clock Freq.: 33 MHz Write and Erase Clock Freq.: 33 MHz Fast Read is supported. Fast Read Clock Frequency: 33 MHz No forbidden opcodes.
=== Region Section === FLREG0 0x00000000 FLREG1 0x03ff0180 FLREG2 0x017f0001 FLREG3 0x00001fff FLREG4 0x00001fff
--- Details --- Region 0 (Descr.) 0x00000000 - 0x00000fff Region 1 (BIOS ) 0x00180000 - 0x003fffff Region 2 (ME ) 0x00001000 - 0x0017ffff Region 3 (GbE ) is unused. Region 4 (Platf.) is unused.
=== Master Section === FLMSTR1 0xffff0000 FLMSTR2 0xffff0000 FLMSTR3 0xffff0118
--- Details --- Descr. BIOS ME GbE Platf. BIOS rw rw rw rw rw ME rw rw rw rw rw GbE rw rw rw rw rw
SPI Read Configuration: prefetching enabled, caching enabled, OK. The following protocols are supported: FWH, SPI. Probing for AMIC A25L05PT, 64 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25L05PU, 64 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25L10PT, 128 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25L10PU, 128 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25L20PT, 256 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25L20PU, 256 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25L40PT, 512 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25L40PU, 512 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25L80P, 1024 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25L16PT, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25L16PU, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25L512, 64 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25L010, 128 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25L020, 256 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25L040, 512 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25L080, 1024 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25L016, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25L032, 4096 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25LQ16, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25LQ032/A25LQ32A, 4096 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for AMIC A25LQ64, 8192 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT25DF021, 256 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT25DF041A, 512 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT25DF081, 1024 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT25DF081A, 1024 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT25DF161, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT25DF321, 4096 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT25DF321A, 4096 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT25DF641(A), 8192 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT25DQ161, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT25F512, 64 kB: Invalid OPCODE 0x15, will not execute. Probing for Atmel AT25F512A, 64 kB: Invalid OPCODE 0x15, will not execute. Probing for Atmel AT25F512B, 64 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT25F1024(A), 128 kB: Invalid OPCODE 0x15, will not execute. Probing for Atmel AT25F2048, 256 kB: Invalid OPCODE 0x15, will not execute. Probing for Atmel AT25F4096, 512 kB: Invalid OPCODE 0x15, will not execute. Probing for Atmel AT25FS010, 128 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT25FS040, 512 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT26DF041, 512 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT26DF081A, 1024 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT26DF161, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT26DF161A, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT26F004, 512 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT45CS1282, 16896 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT45DB011D, 128 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT45DB021D, 256 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT45DB041D, 512 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT45DB081D, 1024 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT45DB161D, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT45DB321C, 4224 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT45DB321D, 4096 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Atmel AT45DB642D, 8192 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for ESMT F25L008A, 1024 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25B05, 64 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25B05T, 64 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25B10, 128 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25B10T, 128 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25B20, 256 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25B20T, 256 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25B40, 512 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25B40T, 512 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25B80, 1024 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25B80T, 1024 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25B16, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25B16T, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25B32, 4096 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25B32T, 4096 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25B64, 8192 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25B64T, 8192 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25F05, 64 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25F10, 128 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25F20, 256 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25F40, 512 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25F80, 1024 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25F16, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25F32, 4096 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25F64, 8192 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25Q40, 512 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25Q80(A), 1024 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25Q16, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25Q32(A/B), 4096 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25Q64, 8192 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25Q128, 16384 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25QH16, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25QH32, 4096 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25QH64, 8192 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25QH128, 16384 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25S10, 128 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25S20, 256 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25S40, 512 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25S80, 1024 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25S16, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25S32, 4096 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Eon EN25S64, 8192 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for GigaDevice GD25LQ32, 4096 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for GigaDevice GD25Q512, 64 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for GigaDevice GD25Q10, 128 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for GigaDevice GD25Q20(B), 256 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for GigaDevice GD25Q40(B), 512 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for GigaDevice GD25Q80(B), 1024 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for GigaDevice GD25Q16(B), 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for GigaDevice GD25Q32(B), 4096 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for GigaDevice GD25Q64(B), 8192 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for GigaDevice GD25Q128B, 16384 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for GigaDevice GD25T80, 1024 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Intel 25F160S33B8, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Intel 25F160S33T8, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Intel 25F320S33B8, 4096 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Intel 25F320S33T8, 4096 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Intel 25F640S33B8, 8192 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Intel 25F640S33T8, 8192 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Macronix MX25L512(E)/MX25V512(C), 64 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Macronix MX25L1005(C)/MX25L1006E, 128 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Macronix MX25L2005(C), 256 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Macronix MX25L4005(A/C), 512 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Macronix MX25L8005/MX25V8005, 1024 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Macronix MX25L1605, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Macronix MX25L1605A/MX25L1606E, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Macronix MX25L1605D/MX25L1608D, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Macronix MX25L1635D, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Macronix MX25L1635E, 2048 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Probing for Macronix MX25L3205(A), 4096 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Found Macronix flash chip "MX25L3205(A)" (4096 kB, SPI) at physical address 0xffc00000. Chip status register is 0x00. Chip status register: Status Register Write Disable (SRWD, SRP, ...) is not set Chip status register: Bit 6 is not set Chip status register: Bit 5 is not set Chip status register: Block Protect 2 (BP2) is not set Chip status register: Block Protect 1 (BP1) is not set Chip status register: Block Protect 0 (BP0) is not set Chip status register: Write Enable Latch (WEL) is not set Chip status register: Write In Progress (WIP/BUSY) is not set Probing for Macronix MX25L3205D/MX25L3208D, 4096 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Found Macronix flash chip "MX25L3205D/MX25L3208D" (4096 kB, SPI) at physical address 0xffc00000. Chip status register is 0x00. Chip status register: Status Register Write Disable (SRWD, SRP, ...) is not set Chip status register: Bit 6 is not set Chip status register: Block Protect 3 (BP3) is not set Chip status register: Block Protect 2 (BP2) is not set Chip status register: Block Protect 1 (BP1) is not set Chip status register: Block Protect 0 (BP0) is not set Chip status register: Write Enable Latch (WEL) is not set Chip status register: Write In Progress (WIP/BUSY) is not set Probing for Macronix MX25L3206E, 4096 kB: probe_spi_rdid_generic: id1 0xc2, id2 0x2016 Found Macronix flash chip "MX25L3206E" (4096 kB, SPI) at physical address 0xffc00000. Chip status register is 0x00. Chip status register: Status Register Write Disable (SRWD, SRP, ...) is not set Chip status register: Bit 6 is not set Chip status register: Block Protect 3 (BP3) is not set Chip status register: Block Protect 2 (BP2) is not set Chip status register: Block Protect 1 (BP1) is not set Chip status register: Block Protect 0 (BP0) is not set Chip status register: Write Enable Latch (WEL) is not set Chip status register: Write In Progress (WIP/BUSY) is not set Multiple flash chip definitions match the detected chip(s): "MX25L3205(A)", "MX25L3205D/MX25L3208D", "MX25L3206E" Please specify which chip definition to use with the -c <chipname> option. Restoring MMIO space at 0x101e428a0 Restoring PCI config space for 00:1f:0 reg 0xdc