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CoreMark/core_matrix.c@0:b5d3bd64d2dc, 2010-01-24 (annotated)

Committer:: no2chem
Date:: Sun Jan 24 15:46:26 2010 +0000
Revision:: 0:b5d3bd64d2dc

Who changed what in which revision?

User	Revision	Line number	New contents of line
no2chem	0:b5d3bd64d2dc	1	/*
no2chem	0:b5d3bd64d2dc	2	Author : Shay Gal-On, EEMBC
no2chem	0:b5d3bd64d2dc	3
no2chem	0:b5d3bd64d2dc	4	This file is part of EEMBC(R) and CoreMark(TM), which are Copyright (C) 2009
no2chem	0:b5d3bd64d2dc	5	All rights reserved.
no2chem	0:b5d3bd64d2dc	6
no2chem	0:b5d3bd64d2dc	7	EEMBC CoreMark Software is a product of EEMBC and is provided under the terms of the
no2chem	0:b5d3bd64d2dc	8	CoreMark License that is distributed with the official EEMBC COREMARK Software release.
no2chem	0:b5d3bd64d2dc	9	If you received this EEMBC CoreMark Software without the accompanying CoreMark License,
no2chem	0:b5d3bd64d2dc	10	you must discontinue use and download the official release from www.coremark.org.
no2chem	0:b5d3bd64d2dc	11
no2chem	0:b5d3bd64d2dc	12	Also, if you are publicly displaying scores generated from the EEMBC CoreMark software,
no2chem	0:b5d3bd64d2dc	13	make sure that you are in compliance with Run and Reporting rules specified in the accompanying readme.txt file.
no2chem	0:b5d3bd64d2dc	14
no2chem	0:b5d3bd64d2dc	15	EEMBC
no2chem	0:b5d3bd64d2dc	16	4354 Town Center Blvd. Suite 114-200
no2chem	0:b5d3bd64d2dc	17	El Dorado Hills, CA, 95762
no2chem	0:b5d3bd64d2dc	18	*/
no2chem	0:b5d3bd64d2dc	19	#include "coremark.h"
no2chem	0:b5d3bd64d2dc	20	/*
no2chem	0:b5d3bd64d2dc	21	Topic: Description
no2chem	0:b5d3bd64d2dc	22	Matrix manipulation benchmark
no2chem	0:b5d3bd64d2dc	23
no2chem	0:b5d3bd64d2dc	24	This very simple algorithm forms the basis of many more complex algorithms.
no2chem	0:b5d3bd64d2dc	25
no2chem	0:b5d3bd64d2dc	26	The tight inner loop is the focus of many optimizations (compiler as well as hardware based)
no2chem	0:b5d3bd64d2dc	27	and is thus relevant for embedded processing.
no2chem	0:b5d3bd64d2dc	28
no2chem	0:b5d3bd64d2dc	29	The total available data space will be divided to 3 parts:
no2chem	0:b5d3bd64d2dc	30	NxN Matrix A - initialized with small values (upper 3/4 of the bits all zero).
no2chem	0:b5d3bd64d2dc	31	NxN Matrix B - initialized with medium values (upper half of the bits all zero).
no2chem	0:b5d3bd64d2dc	32	NxN Matrix C - used for the result.
no2chem	0:b5d3bd64d2dc	33
no2chem	0:b5d3bd64d2dc	34	The actual values for A and B must be derived based on input that is not available at compile time.
no2chem	0:b5d3bd64d2dc	35	*/
no2chem	0:b5d3bd64d2dc	36	ee_s16 matrix_test(ee_u32 N, MATRES C, MATDAT A, MATDAT *B, MATDAT val);
no2chem	0:b5d3bd64d2dc	37	ee_s16 matrix_sum(ee_u32 N, MATRES *C, MATDAT clipval);
no2chem	0:b5d3bd64d2dc	38	void matrix_mul_const(ee_u32 N, MATRES C, MATDAT A, MATDAT val);
no2chem	0:b5d3bd64d2dc	39	void matrix_mul_vect(ee_u32 N, MATRES C, MATDAT A, MATDAT *B);
no2chem	0:b5d3bd64d2dc	40	void matrix_mul_matrix(ee_u32 N, MATRES C, MATDAT A, MATDAT *B);
no2chem	0:b5d3bd64d2dc	41	void matrix_mul_matrix_bitextract(ee_u32 N, MATRES C, MATDAT A, MATDAT *B);
no2chem	0:b5d3bd64d2dc	42	void matrix_add_const(ee_u32 N, MATDAT *A, MATDAT val);
no2chem	0:b5d3bd64d2dc	43
no2chem	0:b5d3bd64d2dc	44	#define matrix_test_next(x) (x+1)
no2chem	0:b5d3bd64d2dc	45	#define matrix_clip(x,y) ((y) ? (x) & 0x0ff : (x) & 0x0ffff)
no2chem	0:b5d3bd64d2dc	46	#define matrix_big(x) (0xf000 \| (x))
no2chem	0:b5d3bd64d2dc	47	#define bit_extract(x,from,to) (((x)>>(from)) & (~(0xffffffff << (to))))
no2chem	0:b5d3bd64d2dc	48
no2chem	0:b5d3bd64d2dc	49	#if CORE_DEBUG
no2chem	0:b5d3bd64d2dc	50	void printmat(MATDAT A, ee_u32 N, char name) {
no2chem	0:b5d3bd64d2dc	51	ee_u32 i,j;
no2chem	0:b5d3bd64d2dc	52	ee_printf("Matrix %s [%dx%d]:\n",name,N,N);
no2chem	0:b5d3bd64d2dc	53	for (i=0; i<N; i++) {
no2chem	0:b5d3bd64d2dc	54	for (j=0; j<N; j++) {
no2chem	0:b5d3bd64d2dc	55	if (j!=0)
no2chem	0:b5d3bd64d2dc	56	ee_printf(",");
no2chem	0:b5d3bd64d2dc	57	ee_printf("%d",A[i*N+j]);
no2chem	0:b5d3bd64d2dc	58	}
no2chem	0:b5d3bd64d2dc	59	ee_printf("\n");
no2chem	0:b5d3bd64d2dc	60	}
no2chem	0:b5d3bd64d2dc	61	}
no2chem	0:b5d3bd64d2dc	62	void printmatC(MATRES C, ee_u32 N, char name) {
no2chem	0:b5d3bd64d2dc	63	ee_u32 i,j;
no2chem	0:b5d3bd64d2dc	64	ee_printf("Matrix %s [%dx%d]:\n",name,N,N);
no2chem	0:b5d3bd64d2dc	65	for (i=0; i<N; i++) {
no2chem	0:b5d3bd64d2dc	66	for (j=0; j<N; j++) {
no2chem	0:b5d3bd64d2dc	67	if (j!=0)
no2chem	0:b5d3bd64d2dc	68	ee_printf(",");
no2chem	0:b5d3bd64d2dc	69	ee_printf("%d",C[i*N+j]);
no2chem	0:b5d3bd64d2dc	70	}
no2chem	0:b5d3bd64d2dc	71	ee_printf("\n");
no2chem	0:b5d3bd64d2dc	72	}
no2chem	0:b5d3bd64d2dc	73	}
no2chem	0:b5d3bd64d2dc	74	#endif
no2chem	0:b5d3bd64d2dc	75	/* Function: core_bench_matrix
no2chem	0:b5d3bd64d2dc	76	Benchmark function
no2chem	0:b5d3bd64d2dc	77
no2chem	0:b5d3bd64d2dc	78	Iterate <matrix_test> N times,
no2chem	0:b5d3bd64d2dc	79	changing the matrix values slightly by a constant amount each time.
no2chem	0:b5d3bd64d2dc	80	*/
no2chem	0:b5d3bd64d2dc	81	ee_u16 core_bench_matrix(mat_params *p, ee_s16 seed, ee_u16 crc) {
no2chem	0:b5d3bd64d2dc	82	ee_u32 N=p->N;
no2chem	0:b5d3bd64d2dc	83	MATRES *C=p->C;
no2chem	0:b5d3bd64d2dc	84	MATDAT *A=p->A;
no2chem	0:b5d3bd64d2dc	85	MATDAT *B=p->B;
no2chem	0:b5d3bd64d2dc	86	MATDAT val=(MATDAT)seed;
no2chem	0:b5d3bd64d2dc	87
no2chem	0:b5d3bd64d2dc	88	crc=crc16(matrix_test(N,C,A,B,val),crc);
no2chem	0:b5d3bd64d2dc	89
no2chem	0:b5d3bd64d2dc	90	return crc;
no2chem	0:b5d3bd64d2dc	91	}
no2chem	0:b5d3bd64d2dc	92
no2chem	0:b5d3bd64d2dc	93	/* Function: matrix_test
no2chem	0:b5d3bd64d2dc	94	Perform matrix manipulation.
no2chem	0:b5d3bd64d2dc	95
no2chem	0:b5d3bd64d2dc	96	Parameters:
no2chem	0:b5d3bd64d2dc	97	N - Dimensions of the matrix.
no2chem	0:b5d3bd64d2dc	98	C - memory for result matrix.
no2chem	0:b5d3bd64d2dc	99	A - input matrix
no2chem	0:b5d3bd64d2dc	100	B - operator matrix (not changed during operations)
no2chem	0:b5d3bd64d2dc	101
no2chem	0:b5d3bd64d2dc	102	Returns:
no2chem	0:b5d3bd64d2dc	103	A CRC value that captures all results calculated in the function.
no2chem	0:b5d3bd64d2dc	104	In particular, crc of the value calculated on the result matrix
no2chem	0:b5d3bd64d2dc	105	after each step by <matrix_sum>.
no2chem	0:b5d3bd64d2dc	106
no2chem	0:b5d3bd64d2dc	107	Operation:
no2chem	0:b5d3bd64d2dc	108
no2chem	0:b5d3bd64d2dc	109	1 - Add a constant value to all elements of a matrix.
no2chem	0:b5d3bd64d2dc	110	2 - Multiply a matrix by a constant.
no2chem	0:b5d3bd64d2dc	111	3 - Multiply a matrix by a vector.
no2chem	0:b5d3bd64d2dc	112	4 - Multiply a matrix by a matrix.
no2chem	0:b5d3bd64d2dc	113	5 - Add a constant value to all elements of a matrix.
no2chem	0:b5d3bd64d2dc	114
no2chem	0:b5d3bd64d2dc	115	After the last step, matrix A is back to original contents.
no2chem	0:b5d3bd64d2dc	116	*/
no2chem	0:b5d3bd64d2dc	117	ee_s16 matrix_test(ee_u32 N, MATRES C, MATDAT A, MATDAT *B, MATDAT val) {
no2chem	0:b5d3bd64d2dc	118	ee_u16 crc=0;
no2chem	0:b5d3bd64d2dc	119	MATDAT clipval=matrix_big(val);
no2chem	0:b5d3bd64d2dc	120
no2chem	0:b5d3bd64d2dc	121	matrix_add_const(N,A,val); /* make sure data changes */
no2chem	0:b5d3bd64d2dc	122	#if CORE_DEBUG
no2chem	0:b5d3bd64d2dc	123	printmat(A,N,"matrix_add_const");
no2chem	0:b5d3bd64d2dc	124	#endif
no2chem	0:b5d3bd64d2dc	125	matrix_mul_const(N,C,A,val);
no2chem	0:b5d3bd64d2dc	126	crc=crc16(matrix_sum(N,C,clipval),crc);
no2chem	0:b5d3bd64d2dc	127	#if CORE_DEBUG
no2chem	0:b5d3bd64d2dc	128	printmatC(C,N,"matrix_mul_const");
no2chem	0:b5d3bd64d2dc	129	#endif
no2chem	0:b5d3bd64d2dc	130	matrix_mul_vect(N,C,A,B);
no2chem	0:b5d3bd64d2dc	131	crc=crc16(matrix_sum(N,C,clipval),crc);
no2chem	0:b5d3bd64d2dc	132	#if CORE_DEBUG
no2chem	0:b5d3bd64d2dc	133	printmatC(C,N,"matrix_mul_vect");
no2chem	0:b5d3bd64d2dc	134	#endif
no2chem	0:b5d3bd64d2dc	135	matrix_mul_matrix(N,C,A,B);
no2chem	0:b5d3bd64d2dc	136	crc=crc16(matrix_sum(N,C,clipval),crc);
no2chem	0:b5d3bd64d2dc	137	#if CORE_DEBUG
no2chem	0:b5d3bd64d2dc	138	printmatC(C,N,"matrix_mul_matrix");
no2chem	0:b5d3bd64d2dc	139	#endif
no2chem	0:b5d3bd64d2dc	140	matrix_mul_matrix_bitextract(N,C,A,B);
no2chem	0:b5d3bd64d2dc	141	crc=crc16(matrix_sum(N,C,clipval),crc);
no2chem	0:b5d3bd64d2dc	142	#if CORE_DEBUG
no2chem	0:b5d3bd64d2dc	143	printmatC(C,N,"matrix_mul_matrix_bitextract");
no2chem	0:b5d3bd64d2dc	144	#endif
no2chem	0:b5d3bd64d2dc	145
no2chem	0:b5d3bd64d2dc	146	matrix_add_const(N,A,-val); /* return matrix to initial value */
no2chem	0:b5d3bd64d2dc	147	return crc;
no2chem	0:b5d3bd64d2dc	148	}
no2chem	0:b5d3bd64d2dc	149
no2chem	0:b5d3bd64d2dc	150	/* Function : matrix_init
no2chem	0:b5d3bd64d2dc	151	Initialize the memory block for matrix benchmarking.
no2chem	0:b5d3bd64d2dc	152
no2chem	0:b5d3bd64d2dc	153	Parameters:
no2chem	0:b5d3bd64d2dc	154	blksize - Size of memory to be initialized.
no2chem	0:b5d3bd64d2dc	155	memblk - Pointer to memory block.
no2chem	0:b5d3bd64d2dc	156	seed - Actual values chosen depend on the seed parameter.
no2chem	0:b5d3bd64d2dc	157	p - pointers to <mat_params> containing initialized matrixes.
no2chem	0:b5d3bd64d2dc	158
no2chem	0:b5d3bd64d2dc	159	Returns:
no2chem	0:b5d3bd64d2dc	160	Matrix dimensions.
no2chem	0:b5d3bd64d2dc	161
no2chem	0:b5d3bd64d2dc	162	Note:
no2chem	0:b5d3bd64d2dc	163	The seed parameter MUST be supplied from a source that cannot be determined at compile time
no2chem	0:b5d3bd64d2dc	164	*/
no2chem	0:b5d3bd64d2dc	165	ee_u32 core_init_matrix(ee_u32 blksize, void memblk, ee_s32 seed, mat_params p) {
no2chem	0:b5d3bd64d2dc	166	ee_u32 N=0;
no2chem	0:b5d3bd64d2dc	167	MATDAT *A;
no2chem	0:b5d3bd64d2dc	168	MATDAT *B;
no2chem	0:b5d3bd64d2dc	169	ee_s32 order=1;
no2chem	0:b5d3bd64d2dc	170	MATDAT val;
no2chem	0:b5d3bd64d2dc	171	ee_u32 i=0,j=0;
no2chem	0:b5d3bd64d2dc	172	if (seed==0)
no2chem	0:b5d3bd64d2dc	173	seed=1;
no2chem	0:b5d3bd64d2dc	174	while (j<blksize) {
no2chem	0:b5d3bd64d2dc	175	i++;
no2chem	0:b5d3bd64d2dc	176	j=ii2*4;
no2chem	0:b5d3bd64d2dc	177	}
no2chem	0:b5d3bd64d2dc	178	N=i-1;
no2chem	0:b5d3bd64d2dc	179	A=(MATDAT *)align_mem(memblk);
no2chem	0:b5d3bd64d2dc	180	B=A+N*N;
no2chem	0:b5d3bd64d2dc	181
no2chem	0:b5d3bd64d2dc	182	for (i=0; i<N; i++) {
no2chem	0:b5d3bd64d2dc	183	for (j=0; j<N; j++) {
no2chem	0:b5d3bd64d2dc	184	seed = ( ( order * seed ) % 65536 );
no2chem	0:b5d3bd64d2dc	185	val = (seed + order);
no2chem	0:b5d3bd64d2dc	186	val=matrix_clip(val,0);
no2chem	0:b5d3bd64d2dc	187	B[i*N+j] = val;
no2chem	0:b5d3bd64d2dc	188	val = (val + order);
no2chem	0:b5d3bd64d2dc	189	val=matrix_clip(val,1);
no2chem	0:b5d3bd64d2dc	190	A[i*N+j] = val;
no2chem	0:b5d3bd64d2dc	191	order++;
no2chem	0:b5d3bd64d2dc	192	}
no2chem	0:b5d3bd64d2dc	193	}
no2chem	0:b5d3bd64d2dc	194
no2chem	0:b5d3bd64d2dc	195	p->A=A;
no2chem	0:b5d3bd64d2dc	196	p->B=B;
no2chem	0:b5d3bd64d2dc	197	p->C=(MATRES )align_mem(B+NN);
no2chem	0:b5d3bd64d2dc	198	p->N=N;
no2chem	0:b5d3bd64d2dc	199	#if CORE_DEBUG
no2chem	0:b5d3bd64d2dc	200	printmat(A,N,"A");
no2chem	0:b5d3bd64d2dc	201	printmat(B,N,"B");
no2chem	0:b5d3bd64d2dc	202	#endif
no2chem	0:b5d3bd64d2dc	203	return N;
no2chem	0:b5d3bd64d2dc	204	}
no2chem	0:b5d3bd64d2dc	205
no2chem	0:b5d3bd64d2dc	206	/* Function: matrix_sum
no2chem	0:b5d3bd64d2dc	207	Calculate a function that depends on the values of elements in the matrix.
no2chem	0:b5d3bd64d2dc	208
no2chem	0:b5d3bd64d2dc	209	For each element, accumulate into a temporary variable.
no2chem	0:b5d3bd64d2dc	210
no2chem	0:b5d3bd64d2dc	211	As long as this value is under the parameter clipval,
no2chem	0:b5d3bd64d2dc	212	add 1 to the result if the element is bigger then the previous.
no2chem	0:b5d3bd64d2dc	213
no2chem	0:b5d3bd64d2dc	214	Otherwise, reset the accumulator and add 10 to the result.
no2chem	0:b5d3bd64d2dc	215	*/
no2chem	0:b5d3bd64d2dc	216	ee_s16 matrix_sum(ee_u32 N, MATRES *C, MATDAT clipval) {
no2chem	0:b5d3bd64d2dc	217	MATRES tmp=0,prev=0,cur=0;
no2chem	0:b5d3bd64d2dc	218	ee_s16 ret=0;
no2chem	0:b5d3bd64d2dc	219	ee_u32 i,j;
no2chem	0:b5d3bd64d2dc	220	for (i=0; i<N; i++) {
no2chem	0:b5d3bd64d2dc	221	for (j=0; j<N; j++) {
no2chem	0:b5d3bd64d2dc	222	cur=C[i*N+j];
no2chem	0:b5d3bd64d2dc	223	tmp+=cur;
no2chem	0:b5d3bd64d2dc	224	if (tmp>clipval) {
no2chem	0:b5d3bd64d2dc	225	ret+=10;
no2chem	0:b5d3bd64d2dc	226	tmp=0;
no2chem	0:b5d3bd64d2dc	227	} else {
no2chem	0:b5d3bd64d2dc	228	ret += (cur>prev) ? 1 : 0;
no2chem	0:b5d3bd64d2dc	229	}
no2chem	0:b5d3bd64d2dc	230	prev=cur;
no2chem	0:b5d3bd64d2dc	231	}
no2chem	0:b5d3bd64d2dc	232	}
no2chem	0:b5d3bd64d2dc	233	return ret;
no2chem	0:b5d3bd64d2dc	234	}
no2chem	0:b5d3bd64d2dc	235
no2chem	0:b5d3bd64d2dc	236	/* Function: matrix_mul_const
no2chem	0:b5d3bd64d2dc	237	Multiply a matrix by a constant.
no2chem	0:b5d3bd64d2dc	238	This could be used as a scaler for instance.
no2chem	0:b5d3bd64d2dc	239	*/
no2chem	0:b5d3bd64d2dc	240	void matrix_mul_const(ee_u32 N, MATRES C, MATDAT A, MATDAT val) {
no2chem	0:b5d3bd64d2dc	241	ee_u32 i,j;
no2chem	0:b5d3bd64d2dc	242	for (i=0; i<N; i++) {
no2chem	0:b5d3bd64d2dc	243	for (j=0; j<N; j++) {
no2chem	0:b5d3bd64d2dc	244	C[iN+j]=(MATRES)A[iN+j] * (MATRES)val;
no2chem	0:b5d3bd64d2dc	245	}
no2chem	0:b5d3bd64d2dc	246	}
no2chem	0:b5d3bd64d2dc	247	}
no2chem	0:b5d3bd64d2dc	248
no2chem	0:b5d3bd64d2dc	249	/* Function: matrix_add_const
no2chem	0:b5d3bd64d2dc	250	Add a constant value to all elements of a matrix.
no2chem	0:b5d3bd64d2dc	251	*/
no2chem	0:b5d3bd64d2dc	252	void matrix_add_const(ee_u32 N, MATDAT *A, MATDAT val) {
no2chem	0:b5d3bd64d2dc	253	ee_u32 i,j;
no2chem	0:b5d3bd64d2dc	254	for (i=0; i<N; i++) {
no2chem	0:b5d3bd64d2dc	255	for (j=0; j<N; j++) {
no2chem	0:b5d3bd64d2dc	256	A[i*N+j] += val;
no2chem	0:b5d3bd64d2dc	257	}
no2chem	0:b5d3bd64d2dc	258	}
no2chem	0:b5d3bd64d2dc	259	}
no2chem	0:b5d3bd64d2dc	260
no2chem	0:b5d3bd64d2dc	261	/* Function: matrix_mul_vect
no2chem	0:b5d3bd64d2dc	262	Multiply a matrix by a vector.
no2chem	0:b5d3bd64d2dc	263	This is common in many simple filters (e.g. fir where a vector of coefficients is applied to the matrix.)
no2chem	0:b5d3bd64d2dc	264	*/
no2chem	0:b5d3bd64d2dc	265	void matrix_mul_vect(ee_u32 N, MATRES C, MATDAT A, MATDAT *B) {
no2chem	0:b5d3bd64d2dc	266	ee_u32 i,j;
no2chem	0:b5d3bd64d2dc	267	for (i=0; i<N; i++) {
no2chem	0:b5d3bd64d2dc	268	C[i]=0;
no2chem	0:b5d3bd64d2dc	269	for (j=0; j<N; j++) {
no2chem	0:b5d3bd64d2dc	270	C[i]+=(MATRES)A[iN+j] (MATRES)B[j];
no2chem	0:b5d3bd64d2dc	271	}
no2chem	0:b5d3bd64d2dc	272	}
no2chem	0:b5d3bd64d2dc	273	}
no2chem	0:b5d3bd64d2dc	274
no2chem	0:b5d3bd64d2dc	275	/* Function: matrix_mul_matrix
no2chem	0:b5d3bd64d2dc	276	Multiply a matrix by a matrix.
no2chem	0:b5d3bd64d2dc	277	Basic code is used in many algorithms, mostly with minor changes such as scaling.
no2chem	0:b5d3bd64d2dc	278	*/
no2chem	0:b5d3bd64d2dc	279	void matrix_mul_matrix(ee_u32 N, MATRES C, MATDAT A, MATDAT *B) {
no2chem	0:b5d3bd64d2dc	280	ee_u32 i,j,k;
no2chem	0:b5d3bd64d2dc	281	for (i=0; i<N; i++) {
no2chem	0:b5d3bd64d2dc	282	for (j=0; j<N; j++) {
no2chem	0:b5d3bd64d2dc	283	C[i*N+j]=0;
no2chem	0:b5d3bd64d2dc	284	for(k=0;k<N;k++)
no2chem	0:b5d3bd64d2dc	285	{
no2chem	0:b5d3bd64d2dc	286	C[iN+j]+=(MATRES)A[iN+k] * (MATRES)B[k*N+j];
no2chem	0:b5d3bd64d2dc	287	}
no2chem	0:b5d3bd64d2dc	288	}
no2chem	0:b5d3bd64d2dc	289	}
no2chem	0:b5d3bd64d2dc	290	}
no2chem	0:b5d3bd64d2dc	291
no2chem	0:b5d3bd64d2dc	292	/* Function: matrix_mul_matrix_bitextract
no2chem	0:b5d3bd64d2dc	293	Multiply a matrix by a matrix, and extract some bits from the result.
no2chem	0:b5d3bd64d2dc	294	Basic code is used in many algorithms, mostly with minor changes such as scaling.
no2chem	0:b5d3bd64d2dc	295	*/
no2chem	0:b5d3bd64d2dc	296	void matrix_mul_matrix_bitextract(ee_u32 N, MATRES C, MATDAT A, MATDAT *B) {
no2chem	0:b5d3bd64d2dc	297	ee_u32 i,j,k;
no2chem	0:b5d3bd64d2dc	298	for (i=0; i<N; i++) {
no2chem	0:b5d3bd64d2dc	299	for (j=0; j<N; j++) {
no2chem	0:b5d3bd64d2dc	300	C[i*N+j]=0;
no2chem	0:b5d3bd64d2dc	301	for(k=0;k<N;k++)
no2chem	0:b5d3bd64d2dc	302	{
no2chem	0:b5d3bd64d2dc	303	MATRES tmp=(MATRES)A[iN+k] (MATRES)B[k*N+j];
no2chem	0:b5d3bd64d2dc	304	C[iN+j]+=bit_extract(tmp,2,4)bit_extract(tmp,5,7);
no2chem	0:b5d3bd64d2dc	305	}
no2chem	0:b5d3bd64d2dc	306	}
no2chem	0:b5d3bd64d2dc	307	}
no2chem	0:b5d3bd64d2dc	308	}

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Type:	Program
Mbed OS support:	Mbed 2 deprecated
Created:	24 Jan 2010
Imports:	396
Forks:	3
Commits:	1
Dependents:	0
Dependencies:	1
Followers:	7

CoreMark/core_matrix.c@0:b5d3bd64d2dc, 2010-01-24 (annotated)

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