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/***************************************************************
__CPU_BYTEORDER.C
Byte-order accessors for canonical PROGRAM fields and
architectural data-object representation.
PART OF : CPU - library .
Copyright (C) 2026 by Andrew V.Kosteltsev.
All Rights Reserved.
***************************************************************/
#include <string.h>
#include <libmcpu.h>
__mpu_uint16_t
__cpu_data_get_u16( const __mpu_UNIT_t *p )
{
__mpu_uint16_t v = 0;
if( p ) memcpy( &v, p, sizeof(v) );
return( v );
}
__mpu_uint32_t
__cpu_data_get_u32( const __mpu_UNIT_t *p )
{
__mpu_uint32_t v = 0;
if( p ) memcpy( &v, p, sizeof(v) );
return( v );
}
__mpu_uint64_t
__cpu_data_get_u64( const __mpu_UNIT_t *p )
{
__mpu_uint64_t v = 0;
if( p ) memcpy( &v, p, sizeof(v) );
return( v );
}
void
__cpu_data_put_u16( __mpu_UNIT_t *p, __mpu_uint16_t v )
{
if( p ) memcpy( p, &v, sizeof(v) );
}
void
__cpu_data_put_u32( __mpu_UNIT_t *p, __mpu_uint32_t v )
{
if( p ) memcpy( p, &v, sizeof(v) );
}
void
__cpu_data_put_u64( __mpu_UNIT_t *p, __mpu_uint64_t v )
{
if( p ) memcpy( p, &v, sizeof(v) );
}
__mpu_uint16_t
__cpu_code_get_u16( const __mpu_UNIT_t *p )
{
if( !p ) return( 0 );
return (__mpu_uint16_t)(((__mpu_uint16_t)p[0] << 8) |
(__mpu_uint16_t)p[1]);
}
__mpu_uint32_t
__cpu_code_get_u32( const __mpu_UNIT_t *p )
{
__mpu_uint32_t v;
if( !p ) return( 0 );
v = ((__mpu_uint32_t)p[0] << 24);
v |= ((__mpu_uint32_t)p[1] << 16);
v |= ((__mpu_uint32_t)p[2] << 8);
v |= (__mpu_uint32_t)p[3];
return( v );
}
__mpu_uint64_t
__cpu_code_get_u64( const __mpu_UNIT_t *p )
{
__mpu_uint64_t v = 0;
int k;
if( !p ) return( 0 );
for( k = 0; k < 8; ++k ) v = ( v << 8 ) | p[k];
return( v );
}
void
__cpu_code_put_u16( __mpu_UNIT_t *p, __mpu_uint16_t v )
{
if( !p ) return;
p[0] = (__mpu_UNIT_t)(v >> 8);
p[1] = (__mpu_UNIT_t)v;
}
void
__cpu_code_put_u32( __mpu_UNIT_t *p, __mpu_uint32_t v )
{
if( !p ) return;
p[0] = (__mpu_UNIT_t)(v >> 24);
p[1] = (__mpu_UNIT_t)(v >> 16);
p[2] = (__mpu_UNIT_t)(v >> 8);
p[3] = (__mpu_UNIT_t)v;
}
void
__cpu_code_put_u64( __mpu_UNIT_t *p, __mpu_uint64_t v )
{
int k;
if( !p ) return;
for( k = 7; k >= 0; --k )
{
p[k] = (__mpu_UNIT_t)( v & __mpu_UINT64_C( 0xff ) );
v >>= 8;
}
}
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