byte_inline_func.h

/*
Copyright (C) 2017 Ming-Shing Chen

This file is part of BitPolyMul.

BitPolyMul is free software: you can redistribute it and/or modify
it under the terms of the GNU Lesser General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.

BitPolyMul is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
GNU Lesser General Public License for more details.

You should have received a copy of the GNU Lesser General Public License
along with BitPolyMul.  If not, see <http://www.gnu.org/licenses/>.
*/

#ifndef _BYTE_INLINE_FUNC_H_
#define _BYTE_INLINE_FUNC_H_

#include <stdio.h>
#include <stdlib.h>
#include <stdint.h>



static inline
unsigned byte_is_zero( const uint64_t * vec , unsigned n ) { unsigned r=0; for(unsigned i=0;i<n;i++) r|= vec[i]; return (0==r); }

static inline
void byte_xor( uint64_t * v1 , const uint64_t * v2 , unsigned n ) { for(unsigned i=0;i<n;i++) v1[i]^= v2[i]; }


static inline
void u64_rand( uint64_t * vec , unsigned n ) { for(unsigned i=0;i<n;i++) vec[i] = rand()&0xff; }

static inline
void byte_rand( uint8_t * vec , unsigned n ) { for(unsigned i=0;i<n;i++) vec[i] = rand()&0xff; }

static inline
void u64_fdump( FILE * fp, const uint64_t *v, unsigned _num_u64) {
	fprintf(fp,"[%2d][",_num_u64);
	for(unsigned i=0;i<_num_u64;i++) { fprintf(fp,"0x%02lx,",v[i]); if(7==(i%8)) fprintf(fp," ");}
	fprintf(fp,"]");
}

static inline
void byte_fdump( FILE * fp, const uint8_t *v, unsigned _num_byte) {
	fprintf(fp,"[%2d][",_num_byte);
	for(unsigned i=0;i<_num_byte;i++) { fprintf(fp,"0x%02x,",v[i]); if(7==(i%8)) fprintf(fp," ");}
	fprintf(fp,"]");
}

static inline
void u64_dump( const uint64_t *v, unsigned _num_u64 ) { u64_fdump(stdout,v,_num_u64); }

static inline
void byte_dump( const uint8_t *v, unsigned _num_byte ) { byte_fdump(stdout,v,_num_byte); }



#include <immintrin.h>

static inline
void xmm_rand( __m128i * vec , unsigned n ) { byte_rand((uint8_t*)vec,n*16); }

static inline
uint64_t xmm_is_zero( const __m128i * vec , unsigned n ) {
	__m128i r=_mm_setzero_si128();
	for(unsigned i=0;i<n;i++) r |= vec[i];
	return 0xffff==_mm_movemask_epi8( _mm_cmpeq_epi8(r,_mm_setzero_si128()) );
}

static inline
void xmm_xor( __m128i * v1 , const __m128i * v2 , unsigned n ) { for(unsigned i=0;i<n;i++) v1[i]^= v2[i]; }

static inline
void xmm_fdump( FILE * fp, const __m128i *v, unsigned n ) {
	fprintf(fp,"[%2d][",n);
	const uint64_t *v64 = (const uint64_t*)v;
	for(unsigned i=0;i<n;i++) { fprintf(fp,"0x%02lx-%02lx, ",v64[i*2+1],v64[i*2]); if(7==(i%8)) fprintf(fp,"|");}
	fprintf(fp,"]");
}

static inline
void xmm_dump( const __m128i *v, unsigned n ) { xmm_fdump(stdout,v,n); }


#endif