diff options
Diffstat (limited to 'src/include/arch-generic')
| -rw-r--r-- | src/include/arch-generic/div64.h | 61 |
1 files changed, 0 insertions, 61 deletions
diff --git a/src/include/arch-generic/div64.h b/src/include/arch-generic/div64.h deleted file mode 100644 index 08db225d3f..0000000000 --- a/src/include/arch-generic/div64.h +++ /dev/null @@ -1,61 +0,0 @@ -#ifndef ARCH_GENERIC_DIV64_H -#define ARCH_GENERIC_DIV64_H -/* - * Copyright (C) 2003 Bernardo Innocenti <bernie@develer.com> - * Based on former asm-ppc/div64.h and asm-m68knommu/div64.h - * - * The semantics of do_div() are: - * - * uint32_t do_div(uint64_t *n, uint32_t base) - * { - * uint32_t remainder = *n % base; - * *n = *n / base; - * return remainder; - * } - * - * NOTE: macro parameter n is evaluated multiple times, - * beware of side effects! - */ - -#ifndef ULONG_MAX -#include <limits.h> -#endif -#include <stdint.h> - -#if ULONG_MAX == 4294967295 - -extern uint32_t __div64_32(uint64_t *dividend, uint32_t divisor); - -/* The unnecessary pointer compare is there - * to check for type safety (n must be 64bit) - */ -# define do_div(n,base) ({ \ - uint32_t __base = (base); \ - uint32_t __rem; \ - (void)(((typeof((n)) *)0) == ((uint64_t *)0)); \ - if (((n) >> 32) == 0) { \ - __rem = (uint32_t)(n) % __base; \ - (n) = (uint32_t)(n) / __base; \ - } else \ - __rem = __div64_32(&(n), __base); \ - __rem; \ - }) - -#elif ULONG_MAX == 18446744073709551615 - -# define do_div(n,base) ({ \ - uint32_t __base = (base); \ - uint32_t __rem; \ - __rem = ((uint64_t)(n)) % __base; \ - (n) = ((uint64_t)(n)) / __base; \ - __rem; \ - }) - - -#else /* BITS_PER_LONG == ?? */ - -# error do_div() does not yet support the C64 - -#endif /* BITS_PER_LONG */ - -#endif /* ARCH_GENERIC_DIV64_H */ |