Pseudo Registers

Pseudoregister	Description
@ERR	Last error value; the same value returned by the GetLastError() API function
@TIB	Thread information block for the current thread; necessary because the debugger doesn't handle the "FS:0" format
@CLK	Undocumented clock register; usable only in the Watch window
@EAX, @EBX, @ECX, @EDX, @ESI, @EDI, @EIP, @ESP, @EBP, @EFL	Intel CPU registers
@CS, @DS, @ES, @SS, @FS, @GS	Intel CPU segment registers
@ST0, @ST1, @ST2, @ST3, @ST4, @ST5, @ST6, @ST7	Intel CPU floating-point registers

@ERR
最后错误值; 和GetLastError() API 函数一致

@TIB
当前线程信息; 在调试器无法处理”FS:0”格式的时候是必要的

@CLK
未列入文档的时钟寄存器; 只是在Watch窗口适用

@EAX, @EBX, @ECX, @EDX, @ESI, @EDI, @EIP, @ESP, @EBP, @EFL
Intel CPU 寄存器

@CS, @DS, @ES, @SS, @FS, @GS
Intel CPU 段寄存器

@ST0, @ST1, @ST2, @ST3, @ST4, @ST5, @ST6, @ST7
Intel CPU 浮点寄存器

其中@TIB很有用,可以用在多线程调试的时候作为断点的条件变量.这样就可以只观察一个线程的执行情况.
另一个常用的@err,hr


(X64 Debugging With Pseudo Variables And Format Specifiers)
Pseudo Variable Description
$handles Number of handles to kernel objects
$vframe Current stack frame address
$TID Current thread identifier
$registername Contents of specified register
$clk Time in clock cycles
$user Process and thread token information

vs调试时,watch窗口变量名后,加参数指定编码显示, 解决“字符串中字符无效”等问题
Specifier Description 
D Decimal
U Unsigned decimal
O Octal
X Hexadecimal　　//16进制查看
F Floating point
E Scientific notation
C Character
S Character string
Su Unicode string
s8 UTF-8 string  //将字符串转成unicode展示
Hr HRESULT or Win32 error code  // 查看Windows HRESULT解释
wc Windows class
wm Windows message //Windows消息,例如0x0010, wm 显示 WM_CLOSE
! Raw format
数字 将变量拆分为数组显示, 数字是要显示多少位, 此法对const char*这类原始字符串非常有用