| 1 | /* |
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| 2 | * Copyright (C) 2007 Michael Lewis |
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| 3 | * Author: Mike Lewis <mikelikespie@gmail.com> |
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| 4 | * |
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| 5 | * This work is provide AS IS, and has no warranty. |
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| 6 | * The author is NOT responsible for anything that happens |
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| 7 | * due to use of this code, either using it or running it on |
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| 8 | * your system |
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| 9 | */ |
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| 10 | #ifndef _HELPERS_H_INCLUDED |
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| 11 | #define _HELPERS_H_INCLUDED |
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| 12 | #include "fakesse.h" |
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| 13 | |
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| 14 | static inline __m128i shift_pack_left127( __m128i A ) { |
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| 15 | return _mm_srli_si128( _mm_srli_epi32( A, 7 ), 15 ); |
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| 16 | } |
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| 17 | |
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| 18 | static inline __m128i shift_pack_left( __m128i A ) { |
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| 19 | const __m128i endmask = _mm_set_epi8( 0xff,0x00,0x00,0x00, |
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| 20 | 0x00,0x00,0x00,0x00, |
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| 21 | 0x00,0x00,0x00,0x00, |
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| 22 | 0x00,0x00,0x00,0x00); |
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| 23 | |
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| 24 | __m128i temp1 = _mm_and_si128( endmask, _mm_srli_epi32( _mm_slli_si128( A, 15 ), 1 ) ); |
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| 25 | __m128i temp2 = _mm_srli_si128( A, 1 ); |
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| 26 | return _mm_or_si128( temp1, temp2 ); |
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| 27 | } |
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| 28 | |
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| 29 | static inline __m128i shift_pack_right127( __m128i A ) { |
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| 30 | return _mm_slli_si128( _mm_slli_epi32( A, 7 ), 15 ); |
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| 31 | } |
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| 32 | |
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| 33 | static inline __m128i shift_pack_right( __m128i A ) { |
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| 34 | const __m128i startmask = _mm_set_epi8( 0x00,0x00,0x00,0x00, |
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| 35 | 0x00,0x00,0x00,0x00, |
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| 36 | 0x00,0x00,0x00,0x00, |
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| 37 | 0x00,0x00,0x00,0xFF); |
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| 38 | |
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| 39 | __m128i temp1 = _mm_and_si128( startmask, _mm_slli_epi32( _mm_srli_si128( A, 15 ), 1 ) ); |
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| 40 | __m128i temp2 = _mm_slli_si128( A, 1 ); |
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| 41 | return _mm_or_si128( temp1, temp2 ); |
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| 42 | } |
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| 43 | |
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| 44 | |
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| 45 | static inline __m128i unpack( __m128i A, int row ) { |
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| 46 | const __m128i onemask = _mm_set1_epi8( 0x01 ); |
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| 47 | __m128i shift = _mm_srli_epi32( A, row ); |
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| 48 | return _mm_and_si128( shift, onemask ); |
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| 49 | } |
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| 50 | |
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| 51 | // MAKE SURE A IS IN THE FORM (0xFF) not (0x01 |
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| 52 | // ( a | mask ) | ( ~mask & b ) |
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| 53 | static inline __m128i pack( __m128i A, int row ) { |
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| 54 | const __m128i onemask = _mm_set1_epi8( 0x01 ); |
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| 55 | A = _mm_and_si128( onemask, A ); |
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| 56 | return _mm_slli_epi32(A, row); |
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| 57 | } |
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| 58 | |
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| 59 | //The get and set ops are scalar and slow. |
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| 60 | __m128i set_bit( __m128i A, int col ); |
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| 61 | char get_bit( __m128i A, int col ); |
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| 62 | void print_packed_row( __m128i A ); |
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| 63 | |
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| 64 | |
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| 65 | void print_life_block( life_block *block ); |
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| 66 | |
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| 67 | void set_bit_in_block( life_block *block, int row, int column ); |
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| 68 | |
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| 69 | #endif //_HELPERS_H_INCLUDED |
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