86Box-probing-tools/pcireg

pcireg

DOS and UEFI tool for reading, writing and dumping PCI configuration space registers; scanning the PCI bus; and more.

Usage

PCIREG -s [-d]
∟ Display all devices on the PCI bus. Specify -d to dump registers as well.

PCIREG -t [-8]
∟ Display BIOS IRQ steering table. Specify -8 to display as 86Box code.

PCIREG -i [bus] device [function]
∟ Show information about the specified device.

PCIREG -r [bus] device [function] register
∟ Read the specified register.

PCIREG -w [bus] device [function] register value
∟ Write byte, word or dword to the specified register.

PCIREG {-d|-dw|-dl} [bus] device [function [register]]
∟ Dump registers as bytes (-d), words (-dw) or dwords (-dl). Optionally
  specify the register to start from (requires bus to be specified as well).

All numeric parameters should be specified in hexadecimal (without 0x prefix).
{bus device function register} can be substituted for a single port CF8h dword.
Register dumps are saved to PCIbbddf.BIN where bb=bus, dd=device, f=function.

Building

DOS target:

• Windows: Run wmake from an OpenWatcom "Build Environment" command prompt.
• Linux: Run wmake with OpenWatcom tools present in $PATH.

UEFI target:

• Linux: Run make -f Makefile.uefi ARCH=x86_64 with a GCC toolchain installed.