mirrors/cosmopolitan
1
0
Fork 0
mirror of https://github.com/jart/cosmopolitan.git synced 2025-05-22 21:32:31 +00:00
Code Issues Projects Releases Packages Wiki Activity Actions 1

wip on intellisense (again)

Browse source
This commit is contained in:
Alexander Nicholi 2021-02-02 11:14:45 -05:00
parent 9841e2186a
commit 7642710155
No known key found for this signature in database
GPG key ID: B75B2EB05540F74C
18 changed files with 242 additions and 52 deletions
Download patch file Download diff file Expand all files Collapse all files

14
libc/bits/bits.h
View file

@ -205,6 +205,7 @@ unsigned long hamming(unsigned long, unsigned long) pureconst;
* @see Intel's Six-Thousand Page Manual V.3A §8.2.3.1
* @see atomic_store()
*/
#ifndef atomic_load
#define atomic_load(MEM) \
({ \
autotype(MEM) Mem = (MEM); \
@ -212,6 +213,7 @@ unsigned long hamming(unsigned long, unsigned long) pureconst;
asm("mov\t%1,%0" : "=r"(Reg) : "m"(*Mem)); \
Reg; \
})
#endif /* atomic_load */
/**
* Saves scalar to memory w/ one operation.
@ -229,6 +231,7 @@ unsigned long hamming(unsigned long, unsigned long) pureconst;
* @see Intel Six-Thousand Page Manual Manual V.3A §8.2.3.1
* @see atomic_load()
*/
#ifndef atomic_store
#define atomic_store(MEM, VAL) \
({ \
autotype(VAL) Val = (VAL); \
@ -236,6 +239,7 @@ unsigned long hamming(unsigned long, unsigned long) pureconst;
asm("mov%z1\t%1,%0" : "=m"(*Mem) : "r"(Val)); \
Val; \
})
#endif /* atomic_store */
#define bts(MEM, BIT) __BitOp("bts", BIT, MEM) /** bit test and set */
#define btr(MEM, BIT) __BitOp("btr", BIT, MEM) /** bit test and reset */
@ -263,6 +267,7 @@ unsigned long hamming(unsigned long, unsigned long) pureconst;
* @return LOCALVAR[0]
* @see xchg()
*/
#ifndef lockxchg
#define lockxchg(MEMORY, LOCALVAR) \
({ \
_Static_assert( \
@ -270,6 +275,7 @@ unsigned long hamming(unsigned long, unsigned long) pureconst;
asm("xchg\t%0,%1" : "+%m"(*(MEMORY)), "+r"(*(LOCALVAR))); \
*(LOCALVAR); \
})
#endif /* lockxchg */
/**
* Compares and exchanges.
@ -278,6 +284,7 @@ unsigned long hamming(unsigned long, unsigned long) pureconst;
* @return true if value was exchanged, otherwise false
* @see lockcmpxchg()
*/
#ifndef cmpxchg
#define cmpxchg(IFTHING, ISEQUALTOME, REPLACEITWITHME) \
({ \
bool DidIt; \
@ -290,6 +297,7 @@ unsigned long hamming(unsigned long, unsigned long) pureconst;
: "cc"); \
DidIt; \
})
#endif /* cmpxchg */
/**
* Compares and exchanges w/ one operation.
@ -298,6 +306,7 @@ unsigned long hamming(unsigned long, unsigned long) pureconst;
* @return true if value was exchanged, otherwise false
* @see lockcmpxchg()
*/
#ifndef lockcmpxchg
#define lockcmpxchg(IFTHING, ISEQUALTOME, REPLACEITWITHME) \
({ \
bool DidIt; \
@ -310,27 +319,32 @@ unsigned long hamming(unsigned long, unsigned long) pureconst;
: "cc"); \
DidIt; \
})
#endif /* lockcmpxchg */
/**
* Gets value of extended control register.
*/
#ifndef xgetbv
#define xgetbv(xcr_register_num) \
({ \
unsigned hi, lo; \
asm("xgetbv" : "=d"(hi), "=a"(lo) : "c"(cr_register_num)); \
(uint64_t) hi << 32 | lo; \
})
#endif /* xgetbv */
/**
* Reads model-specific register.
* @note programs running as guests won't have authorization
*/
#ifndef rdmsr
#define rdmsr(msr) \
({ \
uint32_t lo, hi; \
asm volatile("rdmsr" : "=a"(lo), "=d"(hi) : "c"(msr)); \
(uint64_t) hi << 32 | lo; \
})
#endif rdmsr
/**
* Writes model-specific register.