FLAGS - Intel 8086 Family Flags Register

      |11|10|F|E|D|C|B|A|9|8|7|6|5|4|3|2|1|0|
	|  | | | | | | | | | | | | | | | | `---  CF Carry Flag
	|  | | | | | | | | | | | | | | | `---  1
	|  | | | | | | | | | | | | | | `---  PF Parity Flag
	|  | | | | | | | | | | | | | `---  0
	|  | | | | | | | | | | | | `---  AF Auxiliary Flag
	|  | | | | | | | | | | | `---  0
	|  | | | | | | | | | | `---  ZF Zero Flag
	|  | | | | | | | | | `---  SF Sign Flag
	|  | | | | | | | | `---  TF Trap Flag  (Single Step)
	|  | | | | | | | `---  IF Interrupt Flag
	|  | | | | | | `---  DF Direction Flag
	|  | | | | | `---  OF Overflow flag
	|  | | | `-----  IOPL I/O Privilege Level  (286+ only)
	|  | | `-----  NT Nested Task Flag  (286+ only)
	|  | `-----  0
	|  `-----  RF Resume Flag (386+ only)
	`------  VM  Virtual Mode Flag (386+ only)

	- see	PUSHF  POPF  STI  CLI  STD  CLD