/**
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* \file
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*/
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#ifndef _MONO_METADATA_ENDIAN_H_
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#define _MONO_METADATA_ENDIAN_H_ 1
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#include <glib.h>
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typedef union {
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guint32 ival;
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float fval;
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} mono_rfloat;
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typedef union {
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guint64 ival;
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double fval;
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unsigned char cval [8];
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} mono_rdouble;
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#if defined(__s390x__)
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#define read16(x) s390x_read16(*(guint16 *)(x))
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#define read32(x) s390x_read32(*(guint32 *)(x))
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#define read64(x) s390x_read64(*(guint64 *)(x))
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static __inline__ guint16
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s390x_read16(guint16 x)
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{
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guint16 ret;
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__asm__ (" lrvr %0,%1\n"
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" sra %0,16\n"
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: "=r" (ret) : "r" (x));
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return(ret);
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}
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static __inline__ guint32
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s390x_read32(guint32 x)
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{
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guint32 ret;
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__asm__ (" lrvr %0,%1\n"
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: "=r" (ret) : "r" (x));
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return(ret);
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}
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static __inline__ guint64
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s390x_read64(guint64 x)
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{
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guint64 ret;
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__asm__ (" lrvgr %0,%1\n"
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: "=r" (ret) : "r" (x));
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return(ret);
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}
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#else
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# if NO_UNALIGNED_ACCESS
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guint16 mono_read16 (const unsigned char *x);
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guint32 mono_read32 (const unsigned char *x);
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guint64 mono_read64 (const unsigned char *x);
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#define read16(x) (mono_read16 ((const unsigned char *)(x)))
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#define read32(x) (mono_read32 ((const unsigned char *)(x)))
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#define read64(x) (mono_read64 ((const unsigned char *)(x)))
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# else
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#define read16(x) GUINT16_FROM_LE (*((const guint16 *) (x)))
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#define read32(x) GUINT32_FROM_LE (*((const guint32 *) (x)))
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#define read64(x) GUINT64_FROM_LE (*((const guint64 *) (x)))
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# endif
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#endif
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#define readr4(x,dest) \
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do { \
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mono_rfloat mf; \
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mf.ival = read32 ((x)); \
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*(dest) = mf.fval; \
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} while (0)
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#define readr8(x,dest) \
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do { \
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mono_rdouble mf; \
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mf.ival = read64 ((x)); \
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*(dest) = mf.fval; \
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} while (0)
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#endif /* _MONO_METADATA_ENDIAN_H_ */
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