eflags.md

%eflags

Flags

Flag	Description
CF	Carry Flag
PF	Parity Flag
AF	Adjust Flag
ZF	Zero Flag
SF	Sign Flag
TF	Trap Flag
IF	Interruption Flag
DF	Direction Flag
OF	Overflow Flag
IOPL	I/O Privilege Level
NT	Nested Task Flag
RF	Resume Flag
VM	Virtual-8086 Mode
AC	Alignment Check
VIF	Virtual Interrupt Flag
VIP	Virtual Interrupt Pending Flag
ID	Identification Flag

Register Layout

 3         2         1
10987654321098765432109876543210
00000000001111110111111111010111
..........IVVAVR.N-IODITSZ.A.P.C
          DIICMF T OFFFFFF F F F
           PF      P
                   L

Example

Suppose %eflags = 0x206:

0x    2    0    6
0b 0010 0000 0110
     I         P
     F         F

GDB

(gdb) p/x $eflags
$1 = 0x206

(gdb) p/t $eflags
$2 = 1000000110

(gdb) p $eflags
$1 = [ PF IF ]