Commands modified by Fox Cutter

Fox Cutter — Thu, 24 Apr 2014 20:37:10 -0000

--- v1
+++ v2
@@ -2,24 +2,26 @@

 All numeric input is in hexadecimal.

-Quit
+Addresses
 ------------
-Exits the program if being run under Windows, otherwise just restarts the debug portion. Pretty much useless at the moment and will eventually be removed.
+There are three different ways to enter an address in a command, depending on what you want to do.

-Q
+* **Literal** This is simply an address. IE: *D 00100000*
+* **Relative** This will allow you to have an address relative to the current address. You can prefix the address value with ***+*** or ***-*** to add are subtracted the value from the current address. IE: *D +100* or *D -100*
+* **Current** If you want to use the current address, you can use the value of ***:*** by itself. IE: *D :*

 Dump
 ------------

 The dump command displays the contents of a given memory location. It should be able to print any memory that accessible inside of the 32-bit address space. 

-D\[b|w|d\] \[Address\] \[Length\]
+D\[b|w|d|q\] \[Address\] \[Length\]

-\[b|w|d\]: Display as Byte data, Word data or DWord data. Byte data is the default.
+\[b|w|d|q\]: Display as Byte data, Word data DWord data or QWord Data. Byte data is the default.

-\[Address\]: The address to begin the dump at. If not provided it will continue from where the last dump ended (starting at 0x100000)
+\[Address\]: The address to begin the dump at. If not provided it will start at the current address.

-\[Length\]: The number of bytes to dump, the default is 0x80
+\[Length\]: The number of bytes to dump, the default is 0x80.

@@ -28,15 +30,56 @@

 Searches for data in memory

-S Address Length Value
+S\[b|w|d|q\] Address Length Value
+
+\[b|w|d|q\]: Search for Byte data, Word data or DWord data. Byte data is the default.

 Address: the address to start the search

 Length: How many bytes to search over

-Value: The data (currently as a literal) to search for.
+Value: The data to search for. This can be provided as a quoted string (but only with byte data), or as a list of hex values separated by a space.

+
+Enter
+------------
+
+Enters data into memory
+
+S\[b|w|d|q\] Address Value
+
+\[b|w|d|q\]: Enter Byte data, Word data or DWord data. Byte data is the default.
+
+Address: the address to enter the data
+
+Value: The data to enter. This can be provided as a quoted string (but only with byte data), or as a list of hex values separated by a space.
+
+
+
+Register
+------------
+
+Displays or modifies system registers.
+
+R CR\[0,2-4\] \[Value\]
+
+This version of the command will display the value of the provided CR register.
+
+\[Value\]: The value to set the register to instead of displaying it.
+
+-----
+
+R MRS Register \[Value\]
+
+This version of the command will display the value of the provided Machine Specific Register.
+
+Register: The register to display
+
+\[Value\]: The 64-bit value to set the register to instead of displaying it.
+
+
+**NOTE:** If the Register is in valid, the system will generate a GPF fault as well as list an error. This is expected behavior at the moment.

 Input
 ------------
@@ -70,15 +113,15 @@

 Displays information on a part of the system and allows some editing if necessary.

-N MP|PCI \[Options\]
+N MP

-MP: Displays the contents of the Multi Processor data table.
+Displays the contents of the Multi-Processor data table.
+
+------
+
+N PCI \[DeviceID\] \[Register\] \[Value\]

 PCI: Enumerates the PCI bus display information about each attached device. 
-
-\[Options\]: PCI commands have a number of options
-
-N PCI \[DeviceID\] \[Register\] \[Value\]

 \[DeviceID\]: Displays all the information about a device based on the ID.

@@ -86,19 +129,24 @@

 \[Value\]: Sets the Configuration register to this 32-bit value.

+------

+N CPUID \[ParamID\] \[Supplemental ParamID\]

+This displays the CUPID information, if not parameters are provided it will display the decoded information for ParamID 0
+
+\[ParamID\]: The Parameter ID to display
+
+\[Supplemental ParamID\]: The Supplemental Parameter ID, used with some calls.

 Future Commands
 ------------

-Enter (E): changes the value of memory
 Fill (F): Fills memory
 Disassemble (U): Disassembles code in memory
 Assemble (A): A (limited) assembler
 Expanded Memory (X): Allows swamping of memory above 4G into the 32-bit address space.
-CPUID (N CPUID): direct access to the CPUID opcode.
-Registers (R) Displays and modifies registers, including GPR, Control and Model Specific Registers
+Registers (R) Displays and modifies registers GPR registers
 Load Data (L): Loads data into memory, possibly from disk or a COM port. 
 Write Data (W): Writes data out of memory, possibly to a disk or to a COM port.

Commands modified by Fox Cutter

Fox Cutter — Thu, 27 Mar 2014 22:52:22 -0000

At the moment the command list for BootDebug is rather limited, but it will expand as the program is fleshed out. Additionally the parameter parsing is a bit weak and will have to be improved to properly support things like ranges.

All numeric input is in hexadecimal.

Quit

Exits the program if being run under Windows, otherwise just restarts the debug portion. Pretty much useless at the moment and will eventually be removed.

Dump

The dump command displays the contents of a given memory location. It should be able to print any memory that accessible inside of the 32-bit address space.

D[b|w|d] [Address] [Length]

[b|w|d]: Display as Byte data, Word data or DWord data. Byte data is the default.

[Address]: The address to begin the dump at. If not provided it will continue from where the last dump ended (starting at 0x100000)

[Length]: The number of bytes to dump, the default is 0x80

Search

Searches for data in memory

S Address Length Value

Address: the address to start the search

Length: How many bytes to search over

Value: The data (currently as a literal) to search for.

Input

Reads an IO port and displays the value.

I[b|w|d] Port

[b|w|d]: Display as Byte data, Word data or Dword data. Dword data is the default.

Port: The port to read from.

Output:

Writes to an IO port.

O[b|w|d] Port Value

[b|w|d]: Write as Byte data, Word data or Dword data. Dword data is the default.

Port: The port to read from.

Value: The value to write

Information

Displays information on a part of the system and allows some editing if necessary.

N MP|PCI [Options]

MP: Displays the contents of the Multi Processor data table.

PCI: Enumerates the PCI bus display information about each attached device.

[Options]: PCI commands have a number of options

N PCI [DeviceID] [Register] [Value]

[DeviceID]: Displays all the information about a device based on the ID.

[Register]: Displays the 32-bit value of a configuration register.

[Value]: Sets the Configuration register to this 32-bit value.

Future Commands

Enter (E): changes the value of memory
Fill (F): Fills memory
Disassemble (U): Disassembles code in memory
Assemble (A): A (limited) assembler
Expanded Memory (X): Allows swamping of memory above 4G into the 32-bit address space.
CPUID (N CPUID): direct access to the CPUID opcode.
Registers (R) Displays and modifies registers, including GPR, Control and Model Specific Registers
Load Data (L): Loads data into memory, possibly from disk or a COM port.
Write Data (W): Writes data out of memory, possibly to a disk or to a COM port.

Recent changes to Commands

Commands modified by Fox Cutter

Commands modified by Fox Cutter

Quit

Dump

Search

Input

Information

Future Commands