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Diffstat (limited to 'byterun/caml/int64_native.h')
| -rw-r--r-- | byterun/caml/int64_native.h | 61 |
1 files changed, 61 insertions, 0 deletions
diff --git a/byterun/caml/int64_native.h b/byterun/caml/int64_native.h new file mode 100644 index 000000000..b6716ada2 --- /dev/null +++ b/byterun/caml/int64_native.h @@ -0,0 +1,61 @@ +/***********************************************************************/ +/* */ +/* OCaml */ +/* */ +/* Xavier Leroy, projet Cristal, INRIA Rocquencourt */ +/* */ +/* Copyright 2002 Institut National de Recherche en Informatique et */ +/* en Automatique. All rights reserved. This file is distributed */ +/* under the terms of the GNU Library General Public License, with */ +/* the special exception on linking described in file ../LICENSE. */ +/* */ +/***********************************************************************/ + +/* Wrapper macros around native 64-bit integer arithmetic, + so that it has the same interface as the software emulation + provided in int64_emul.h */ + +#ifndef CAML_INT64_NATIVE_H +#define CAML_INT64_NATIVE_H + +#define I64_literal(hi,lo) ((int64_t)(hi) << 32 | (lo)) +#define I64_split(x,hi,lo) (hi = (uint32_t)((x)>>32), lo = (uint32_t)(x)) +#define I64_compare(x,y) (((x) > (y)) - ((x) < (y))) +#define I64_ult(x,y) ((uint64_t)(x) < (uint64_t)(y)) +#define I64_neg(x) (-(x)) +#define I64_add(x,y) ((x) + (y)) +#define I64_sub(x,y) ((x) - (y)) +#define I64_mul(x,y) ((x) * (y)) +#define I64_is_zero(x) ((x) == 0) +#define I64_is_negative(x) ((x) < 0) +#define I64_is_min_int(x) ((x) == ((int64_t)1 << 63)) +#define I64_is_minus_one(x) ((x) == -1) + +#define I64_div(x,y) ((x) / (y)) +#define I64_mod(x,y) ((x) % (y)) +#define I64_udivmod(x,y,quo,rem) \ + (*(rem) = (uint64_t)(x) % (uint64_t)(y), \ + *(quo) = (uint64_t)(x) / (uint64_t)(y)) +#define I64_and(x,y) ((x) & (y)) +#define I64_or(x,y) ((x) | (y)) +#define I64_xor(x,y) ((x) ^ (y)) +#define I64_lsl(x,y) ((x) << (y)) +#define I64_asr(x,y) ((x) >> (y)) +#define I64_lsr(x,y) ((uint64_t)(x) >> (y)) +#define I64_to_intnat(x) ((intnat) (x)) +#define I64_of_intnat(x) ((intnat) (x)) +#define I64_to_int32(x) ((int32_t) (x)) +#define I64_of_int32(x) ((int64_t) (x)) +#define I64_to_double(x) ((double)(x)) +#define I64_of_double(x) ((int64_t)(x)) + +#define I64_bswap(x) ((((x) & 0x00000000000000FFULL) << 56) | \ + (((x) & 0x000000000000FF00ULL) << 40) | \ + (((x) & 0x0000000000FF0000ULL) << 24) | \ + (((x) & 0x00000000FF000000ULL) << 8) | \ + (((x) & 0x000000FF00000000ULL) >> 8) | \ + (((x) & 0x0000FF0000000000ULL) >> 24) | \ + (((x) & 0x00FF000000000000ULL) >> 40) | \ + (((x) & 0xFF00000000000000ULL) >> 56)) + +#endif /* CAML_INT64_NATIVE_H */ |