osdev/kernel/fatfs/integer.h

/*-------------------------------------------*/
/* Integer type definitions for FatFs module */
/*-------------------------------------------*/

#ifndef FF_INTEGER
#define FF_INTEGER

#include <stdint.h>

#ifdef _WIN32	/* FatFs development platform */

#include <windows.h>
typedef unsigned __int64 QWORD;

#else			/* Embedded platform */

/* These types MUST be 16-bit or 32-bit */
typedef int32_t		INT;
typedef uint32_t	UINT;

/* This type MUST be 8-bit */
typedef uint8_t 	BYTE;

/* These types MUST be 16-bit */
typedef int16_t		SHORT;
typedef uint16_t	WORD;
typedef uint16_t	WCHAR;

/* These types MUST be 32-bit */
typedef int32_t		LONG;
typedef uint32_t	DWORD;

/* This type MUST be 64-bit (Remove this for ANSI C (C89) compatibility) */
typedef uint64_t QWORD;

#endif

#endif