WinDbg支持自动伪寄存器和用户定义伪寄存器。
所有的伪寄存器都是使用美元符号开始(添加一个@符号。这个@符号告诉调试器接下来的标识是一个寄存器或者伪寄存器，不是一个符号。如果忽略@符号，调试器将搜索符号表。
r寄存器命令是一个例外，调试器总是解释他的第一个参数作为寄存器和伪寄存器。第二个参数就按照正常语法来解释

0:000> r $t1 = @$t2

自动伪寄存器

伪寄存器	描述
$ea	最后一条被执行的有效地址，如果不是有效地址，将显示“Bad register error”
$ea	第二个有效地址
$exp	最后一个表达式的值
$ra	当前在栈上的返回地址
$ip	指令寄存器 x86:eip Itanium:iip x64 rip
$eventip	The instruction pointer at the time of the current event. This pointer typically matches $ip, unless you switched threads or manually changed the value of the instruction pointer.
$previp	The instruction pointer at the time of the previous event. (Breaking into the debugger counts as an event.)
$relip	An instruction pointer that is related to the current event. When you are branch tracing, this pointer is the pointer to the branch source.
$scopeip	The instruction pointer for the current local context (also known as the scope).
$exentry	The address of the entry point of the first executable of the current process.
$retreg	The primary return value register.x86-based processors: The same as eax.Itanium-based processors: The same as ret0.x64-based processors: The same as rax.
$retreg64	The primary return value register, in 64-bit format.x86 processor: The same as the edx:eax pair.
$csp	The current call stack pointer. This pointer is the register that is most representative of call stack depth.x86-based processors: The same as esp.Itanium-based processors: The same as bsp.x64-based processors: The same as rsp.
$p	The value that the last d (Display Memory)* command printed.
$proc	The address of the current process (that is, the address of the EPROCESS block).
$thread	The address of the current thread. In kernel-mode debugging, this address is the address of the ETHREAD block. In user-mode debugging, this address is the address of the thread environment block (TEB).
$peb	The address of the process environment block (PEB) of the current process.
$teb	The address of the thread environment block (TEB) of the current thread.
$tpid	The process ID (PID) for the process that owns the current thread.
$tid	The thread ID for the current thread.
$dtid
$dpid
$dsid
$bpNumber	The address of the corresponding breakpoint. For example, bp03) refers to the breakpoint whose breakpoint ID is 3. Number is always a decimal number. If no breakpoint has an ID of Number, $bpNumber evaluates to zero. For more information about breakpoints, see Using Breakpoints.
$frame	The current frame index. This index is the same frame number that the .frame (Set Local Context) command uses.
$dbgtime	The current time, according to the computer that the debugger is running on.
$callret	The return value of the last function that .call (Call Function) called or that is used in an .fnret /s command. The data type of $callret is the data type of this return value.
$extret
$extin
$clrex
$lastclrex	Managed debugging only: The address of the last-encountered common language runtime (CLR) exception object.
$ptrsize	指针的长度. In kernel mode, this size is the pointer size on the target computer.
$pagesize	The number of bytes in one page of memory. In kernel mode, this size is the page size on the target computer.
$pcr
$pcrb
$argreg
$exr_chance	The chance of the current exception record.
$exr_code	The exception code for the current exception record.
$exr_numparams	The number of parameters in the current exception record.
$exr_param0	The value of Parameter 0 in the current exception record.
$exr_param1	The value of Parameter 1 in the current exception record.
$exr_param2	The value of Parameter 2 in the current exception record.
$exr_param3	The value of Parameter 3 in the current exception record.
$exr_param4	The value of Parameter 4 in the current exception record.
$exr_param5	The value of Parameter 5 in the current exception record.
$exr_param6	The value of Parameter 6 in the current exception record.
$exr_param7	The value of Parameter 7 in the current exception record.
$exr_param8	The value of Parameter 8 in the current exception record.
$exr_param9	The value of Parameter 9 in the current exception record.
$exr_param10	The value of Parameter 10 in the current exception record.
$exr_param11	The value of Parameter 11 in the current exception record.
$exr_param12	The value of Parameter 12 in the current exception record.
$exr_param13	The value of Parameter 13 in the current exception record.
$exr_param14	The value of Parameter 14 in the current exception record.
$bug_code	If a bug check has occurred, this is the bug code. Applies to live kernel-mode debugging and kernel crash dumps.
$bug_param1	If a bug check has occurred, this is the value of Parameter 1. Applies to live kernel-mode debugging and kernel crash dumps.
$bug_param2	If a bug check has occurred, this is the value of Parameter 2. Applies to live kernel-mode debugging and kernel crash dumps.
$bug_param3	If a bug check has occurred, this is the value of Parameter 3. Applies to live kernel-mode debugging and kernel crash dumps.
$bug_param4	If a bug check has occurred, this is the value of Parameter 4. Applies to live kernel-mode debugging and kernel crash dumps.