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#pragma once
#include <AK/Types.h>
#if defined(KERNEL) || defined(BOOTSTRAPPER)
# include <LibBareMetal/StdLib.h>
#else
# include <stdlib.h>
# include <string.h>
#endif
#if defined(__serenity__) && !defined(KERNEL) && !defined(BOOTSTRAPPER)
extern "C" void* mmx_memcpy(void* to, const void* from, size_t);
#endif
ALWAYS_INLINE void fast_u32_copy(u32* dest, const u32* src, size_t count)
{
#if defined(__serenity__) && !defined(KERNEL) && !defined(BOOTSTRAPPER)
if (count >= 256) {
mmx_memcpy(dest, src, count * sizeof(count));
return;
}
#endif
asm volatile(
"rep movsl\n"
: "=S"(src), "=D"(dest), "=c"(count)
: "S"(src), "D"(dest), "c"(count)
: "memory");
}
ALWAYS_INLINE void fast_u32_fill(u32* dest, u32 value, size_t count)
{
asm volatile(
"rep stosl\n"
: "=D"(dest), "=c"(count)
: "D"(dest), "c"(count), "a"(value)
: "memory");
}
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