AMD 4.4.5 user manual 154

	AMD Confidential
User Manual		November 21st, 2008
Debugger Command		Definition
p		Similar to the t command, single steps the
		simulation one instruction, unless the current
		instruction is a call, software interrupt, or
		repeated string instruction, in which case this
		command sets a temporary execution
		breakpoint at the instruction sequentially
		following the current instruction, and starts
		simulation.
r [regname[= <value>]]		Displays, and optionally alters, the contents of
		various CPU registers. For a list of register
		names that are supported, type R?. Normally,
		the display is in the current CPU mode. To
		force 16-bit, 32-bit, or 64-bit register display,
		type R16, R32, or R64 respectively.
R16		Display 16-bit registers (until the next
		instruction).
R32		Display 32-bit registers (until the next
		instruction).
R64		Display 64-bit registers (until the next
		instruction).
s <Bus> <Device> <Function>		Displays the PCI configuration registers
		associated with the given Bus, Device, and
		Function number.
t [count]		Executes [count] instructions. The default value
		for [count] is 1.
u [address range]		Disassembles instructions starting, at the given
		address and continuing for [length] instructions.
		Instructions are disassembled using the current
		CPU execution mode.
v		Displays the version number information for the
		attached processor device.

q<a1> [noncase] <StartAddress>[,[lp]] <[[L]Length] [EndAddress]> <Pattern>

Search physical (default) or linear Memory for pattern and display all or only first occurrence(s).

Table 10-7: Debugger Commands and Definitions

In general, address and count values can be specified as constants (hex for addresses, ports, and values; decimal for counts and lengths), or as register names. For addresses, the CS:, DS:, ES:, FS:, GS:, and SS: prefixes are also allowed.

Address values may be suffixed by „,L‟ to specify a linear address (the default) or „,P‟ to specify a physical address. Addresses may also be specified by their symbol name. Precede the symbol name with a # character to distinguish it from a hex constant.

154 Chapter 10: CPU Debugger