interp.h

/* _GNU_SOURCE doesn't bring in C99 long long constants,
   but we do get the GNU constants */
#ifndef LLONG_MAX
#define LLONG_MAX LONG_LONG_MAX
#endif

#ifndef LLONG_MIN
#define LLONG_MIN LONG_LONG_MIN
#endif

#ifdef HAVE_ENDIAN_H
#include <endian.h>
#elif HAVE_SYS_PARAM_H
#include <sys/param.h>
#endif

#if BYTE_ORDER == BIG_ENDIAN
#define FLOAT_CONST(val) (uintptr_t)val << (sizeof(uintptr_t) * 8 - 32)
#else
#define FLOAT_CONST(val) val
#endif

#define FLOAT_1_BITS FLOAT_CONST(0x3f800000)
#define FLOAT_2_BITS FLOAT_CONST(0x40000000)

#define READ_U1_OP(p)    ((p)[1])
#define READ_U2_OP(p)    (((p)[1]<<8)|(p)[2])
#define READ_U4_OP(p)    (((p)[1]<<24)|((p)[2]<<16)|((p)[3]<<8)|(p)[4])
#define READ_S1_OP(p)    (signed char)READ_U1_OP(p)
#define READ_S2_OP(p)    (signed short)READ_U2_OP(p)
#define READ_S4_OP(p)    (signed int)READ_U4_OP(p)