Mirrors/libhermit
1
0
Fork 0
mirror of https://github.com/hermitcore/libhermit.git synced 2025-03-09 00:00:03 +01:00
Code Issues Releases Wiki Activity

add readable macros for the status flag

Browse source
This commit is contained in:
Stefan Lankes 2015-07-19 11:02:22 +02:00
parent 97eb56e95d
commit ccbd363d6d
1 changed files with 24 additions and 0 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

24
hermit/arch/x86/include/asm/processor.h
View file

@ -81,6 +81,30 @@ extern "C" {
// feature list 0x00000007:0
#define CPU_FEATURE_AVX2 (1 << 5)
/*
* EFLAGS bits
*/
#define EFLAGS_CF (1 << 0) /* Carry Flag */
#define EFLAGS_FIXED (1 << 1) /* Bit 1 - always on */
#define EFLAGS_PF (1 << 2) /* Parity Flag */
#define EFLAGS_AF (1 << 4) /* Auxiliary carry Flag */
#define EFLAGS_ZF (1 << 6) /* Zero Flag */
#define EFLAGS_SF (1 << 7) /* Sign Flag */
#define EFLAGS_TF (1 << 8) /* Trap Flag */
#define EFLAGS_IF (1 << 9) /* Interrupt Flag */
#define EFLAGS_DF (1 << 10) /* Direction Flag */
#define EFLAGS_OF (1 << 11) /* Overflow Flag */
#define EFLAGS_IOPL (1 << 12) /* I/O Privilege Level (2 bits) */
#define EFLAGS_NT (1 << 14) /* Nested Task */
#define EFLAGS_RF (1 << 16) /* Resume Flag */
#define EFLAGS_VM (1 << 17) /* Virtual Mode */
#define EFLAGS_AC (1 << 18) /* Alignment Check/Access Control */
#define EFLAGS_VIF (1 << 19) /* Virtual Interrupt Flag */
#define EFLAGS_VIP (1 << 20) /* Virtual Interrupt Pending */
#define EFLAGS_ID (1 << 21) /* CPUID detection */
// x86 control registers
/// Protected Mode Enable