// === MACROS ===
typedef volatile int tSpinlock;
+#define IS_LOCKED(lockptr) (!!(*(tSpinlock*)lockptr))
#define LOCK(lockptr) do {int v=1;\
while(v)__asm__ __volatile__("lock xchgl %%eax, (%%edi)":"=a"(v):"a"(1),"D"(lockptr));}while(0)
#define RELEASE(lockptr) __asm__ __volatile__("lock andl $0, (%%edi)"::"D"(lockptr));
Uint Resvd4[1]; // SS
} tSyscallRegs;
-typedef struct {
- Uint16 LimitLow;
- Uint16 BaseLow;
- Uint8 BaseMid;
- Uint8 Access;
- struct {
- unsigned LimitHi: 4;
- unsigned Flags: 4;
- } __attribute__ ((packed));
- Uint8 BaseHi;
-} __attribute__ ((packed)) tGDT;
-
typedef struct {
#if USE_PAE
Uint PDPT[4];