/*
|
/*
|
Author : Shay Gal-On, EEMBC
|
Author : Shay Gal-On, EEMBC
|
|
|
This file is part of EEMBC(R) and CoreMark(TM), which are Copyright (C) 2009
|
This file is part of EEMBC(R) and CoreMark(TM), which are Copyright (C) 2009
|
All rights reserved.
|
All rights reserved.
|
|
|
EEMBC CoreMark Software is a product of EEMBC and is provided under the terms of the
|
EEMBC CoreMark Software is a product of EEMBC and is provided under the terms of the
|
CoreMark License that is distributed with the official EEMBC COREMARK Software release.
|
CoreMark License that is distributed with the official EEMBC COREMARK Software release.
|
If you received this EEMBC CoreMark Software without the accompanying CoreMark License,
|
If you received this EEMBC CoreMark Software without the accompanying CoreMark License,
|
you must discontinue use and download the official release from www.coremark.org.
|
you must discontinue use and download the official release from www.coremark.org.
|
|
|
Also, if you are publicly displaying scores generated from the EEMBC CoreMark software,
|
Also, if you are publicly displaying scores generated from the EEMBC CoreMark software,
|
make sure that you are in compliance with Run and Reporting rules specified in the accompanying readme.txt file.
|
make sure that you are in compliance with Run and Reporting rules specified in the accompanying readme.txt file.
|
|
|
EEMBC
|
EEMBC
|
4354 Town Center Blvd. Suite 114-200
|
4354 Town Center Blvd. Suite 114-200
|
El Dorado Hills, CA, 95762
|
El Dorado Hills, CA, 95762
|
*/
|
*/
|
#include "coremark.h"
|
#include "coremark.h"
|
/* local functions */
|
/* local functions */
|
enum CORE_STATE core_state_transition( ee_u8 **instr , ee_u32 *transition_count);
|
enum CORE_STATE core_state_transition(ee_u8 ** instr,
|
|
ee_u32 * transition_count);
|
|
|
/*
|
/*
|
Topic: Description
|
Topic: Description
|
Simple state machines like this one are used in many embedded products.
|
Simple state machines like this one are used in many embedded products.
|
|
|
For more complex state machines, sometimes a state transition table implementation is used instead,
|
For more complex state machines, sometimes a state transition table implementation is used instead,
|
trading speed of direct coding for ease of maintenance.
|
trading speed of direct coding for ease of maintenance.
|
|
|
Since the main goal of using a state machine in CoreMark is to excercise the switch/if behaviour,
|
Since the main goal of using a state machine in CoreMark is to excercise the switch/if behaviour,
|
we are using a small moore machine.
|
we are using a small moore machine.
|
|
|
In particular, this machine tests type of string input,
|
In particular, this machine tests type of string input,
|
trying to determine whether the input is a number or something else.
|
trying to determine whether the input is a number or something else.
|
(see core_state.png).
|
(see core_state.png).
|
*/
|
*/
|
|
|
/* Function: core_bench_state
|
/* Function: core_bench_state
|
Benchmark function
|
Benchmark function
|
|
|
Go over the input twice, once direct, and once after introducing some corruption.
|
Go over the input twice, once direct, and once after introducing some corruption.
|
*/
|
*/
|
ee_u16 core_bench_state(ee_u32 blksize, ee_u8 *memblock,
|
ee_u16 core_bench_state(ee_u32 blksize, ee_u8 * memblock,
|
ee_s16 seed1, ee_s16 seed2, ee_s16 step, ee_u16 crc)
|
ee_s16 seed1, ee_s16 seed2, ee_s16 step, ee_u16 crc)
|
{
|
{
|
ee_u32 final_counts[NUM_CORE_STATES];
|
ee_u32 final_counts[NUM_CORE_STATES];
|
ee_u32 track_counts[NUM_CORE_STATES];
|
ee_u32 track_counts[NUM_CORE_STATES];
|
ee_u8 *p=memblock;
|
ee_u8 *p = memblock;
|
ee_u32 i;
|
ee_u32 i;
|
|
|
|
|
#if CORE_DEBUG
|
#if CORE_DEBUG
|
ee_printf("State Bench: %d,%d,%d,%04x\n",seed1,seed2,step,crc);
|
ee_printf("State Bench: %d,%d,%d,%04x\n", seed1, seed2, step, crc);
|
#endif
|
#endif
|
for (i=0; i<NUM_CORE_STATES; i++) {
|
for (i = 0; i < NUM_CORE_STATES; i++) {
|
final_counts[i]=track_counts[i]=0;
|
final_counts[i] = track_counts[i] = 0;
|
}
|
}
|
/* run the state machine over the input */
|
/* run the state machine over the input */
|
while (*p!=0) {
|
while (*p!=0) {
|
enum CORE_STATE fstate=core_state_transition(&p,track_counts);
|
enum CORE_STATE fstate =
|
|
core_state_transition(&p, track_counts);
|
final_counts[fstate]++;
|
final_counts[fstate]++;
|
#if CORE_DEBUG
|
#if CORE_DEBUG
|
ee_printf("%d,",fstate);
|
ee_printf("%d,", fstate);
|
}
|
}
|
ee_printf("\n");
|
ee_printf("\n");
|
#else
|
#else
|
}
|
}
|
#endif
|
#endif
|
p=memblock;
|
p = memblock;
|
while (p < (memblock+blksize)) { /* insert some corruption */
|
while (p < (memblock + blksize)) { /* insert some corruption */
|
if (*p!=',')
|
if (*p != ',')
|
*p^=(ee_u8)seed1;
|
*p ^= (ee_u8) seed1;
|
p+=step;
|
p += step;
|
}
|
}
|
p=memblock;
|
p = memblock;
|
/* run the state machine over the input again */
|
/* run the state machine over the input again */
|
while (*p!=0) {
|
while (*p!=0) {
|
enum CORE_STATE fstate=core_state_transition(&p,track_counts);
|
enum CORE_STATE fstate =
|
|
core_state_transition(&p, track_counts);
|
final_counts[fstate]++;
|
final_counts[fstate]++;
|
#if CORE_DEBUG
|
#if CORE_DEBUG
|
ee_printf("%d,",fstate);
|
ee_printf("%d,", fstate);
|
}
|
}
|
ee_printf("\n");
|
ee_printf("\n");
|
#else
|
#else
|
}
|
}
|
#endif
|
#endif
|
p=memblock;
|
p = memblock;
|
while (p < (memblock+blksize)) { /* undo corruption is seed1 and seed2 are equal */
|
while (p < (memblock + blksize)) { /* undo corruption is seed1 and seed2 are equal */
|
if (*p!=',')
|
if (*p != ',')
|
*p^=(ee_u8)seed2;
|
*p ^= (ee_u8) seed2;
|
p+=step;
|
p += step;
|
}
|
}
|
/* end timing */
|
/* end timing */
|
for (i=0; i<NUM_CORE_STATES; i++) {
|
for (i = 0; i < NUM_CORE_STATES; i++) {
|
crc=crcu32(final_counts[i],crc);
|
crc = crcu32(final_counts[i], crc);
|
crc=crcu32(track_counts[i],crc);
|
crc = crcu32(track_counts[i], crc);
|
}
|
}
|
return crc;
|
return crc;
|
}
|
}
|
|
|
/* Default initialization patterns */
|
/* Default initialization patterns */
|
static ee_u8 *intpat[4] ={(ee_u8 *)"5012",(ee_u8 *)"1234",(ee_u8 *)"-874",(ee_u8 *)"+122"};
|
static ee_u8 *intpat[4] =
|
static ee_u8 *floatpat[4]={(ee_u8 *)"35.54400",(ee_u8 *)".1234500",(ee_u8 *)"-110.700",(ee_u8 *)"+0.64400"};
|
{ (ee_u8 *) "5012", (ee_u8 *) "1234", (ee_u8 *) "-874", (ee_u8 *) "+122" };
|
static ee_u8 *scipat[4] ={(ee_u8 *)"5.500e+3",(ee_u8 *)"-.123e-2",(ee_u8 *)"-87e+832",(ee_u8 *)"+0.6e-12"};
|
static ee_u8 *floatpat[4] =
|
static ee_u8 *errpat[4] ={(ee_u8 *)"T0.3e-1F",(ee_u8 *)"-T.T++Tq",(ee_u8 *)"1T3.4e4z",(ee_u8 *)"34.0e-T^"};
|
{ (ee_u8 *) "35.54400", (ee_u8 *) ".1234500", (ee_u8 *) "-110.700",
|
|
(ee_u8 *) "+0.64400" };
|
|
static ee_u8 *scipat[4] =
|
|
{ (ee_u8 *) "5.500e+3", (ee_u8 *) "-.123e-2", (ee_u8 *) "-87e+832",
|
|
(ee_u8 *) "+0.6e-12" };
|
|
static ee_u8 *errpat[4] =
|
|
{ (ee_u8 *) "T0.3e-1F", (ee_u8 *) "-T.T++Tq", (ee_u8 *) "1T3.4e4z",
|
|
(ee_u8 *) "34.0e-T^" };
|
|
|
/* Function: core_init_state
|
/* Function: core_init_state
|
Initialize the input data for the state machine.
|
Initialize the input data for the state machine.
|
|
|
Populate the input with several predetermined strings, interspersed.
|
Populate the input with several predetermined strings, interspersed.
|
Actual patterns chosen depend on the seed parameter.
|
Actual patterns chosen depend on the seed parameter.
|
|
|
Note:
|
Note:
|
The seed parameter MUST be supplied from a source that cannot be determined at compile time
|
The seed parameter MUST be supplied from a source that cannot be determined at compile time
|
*/
|
*/
|
void core_init_state(ee_u32 size, ee_s16 seed, ee_u8 *p) {
|
void core_init_state(ee_u32 size, ee_s16 seed, ee_u8 * p)
|
|
{
|
ee_u32 total=0,next=0,i;
|
ee_u32 total=0,next=0,i;
|
ee_u8 *buf=0;
|
ee_u8 *buf = 0;
|
#if CORE_DEBUG
|
#if CORE_DEBUG
|
ee_u8 *start=p;
|
ee_u8 *start = p;
|
ee_printf("State: %d,%d\n",size,seed);
|
ee_printf("State: %d,%d\n", size, seed);
|
#endif
|
#endif
|
size--;
|
size--;
|
next=0;
|
next = 0;
|
while ((total+next+1)<size) {
|
while ((total + next + 1) < size) {
|
if (next>0) {
|
if (next > 0) {
|
for(i=0;i<next;i++)
|
for (i = 0; i < next; i++)
|
*(p+total+i)=buf[i];
|
*(p + total + i) = buf[i];
|
*(p+total+i)=',';
|
*(p + total + i) = ',';
|
total+=next+1;
|
total += next + 1;
|
}
|
}
|
seed++;
|
seed++;
|
switch (seed & 0x7) {
|
switch (seed & 0x7) {
|
case 0: /* int */
|
case 0: /* int */
|
case 1: /* int */
|
case 1: /* int */
|
case 2: /* int */
|
case 2: /* int */
|
buf=intpat[(seed>>3) & 0x3];
|
buf = intpat[(seed >> 3) & 0x3];
|
next=4;
|
next = 4;
|
break;
|
break;
|
case 3: /* float */
|
case 3: /* float */
|
case 4: /* float */
|
case 4: /* float */
|
buf=floatpat[(seed>>3) & 0x3];
|
buf = floatpat[(seed >> 3) & 0x3];
|
next=8;
|
next = 8;
|
break;
|
break;
|
case 5: /* scientific */
|
case 5: /* scientific */
|
case 6: /* scientific */
|
case 6: /* scientific */
|
buf=scipat[(seed>>3) & 0x3];
|
buf = scipat[(seed >> 3) & 0x3];
|
next=8;
|
next = 8;
|
break;
|
break;
|
case 7: /* invalid */
|
case 7: /* invalid */
|
buf=errpat[(seed>>3) & 0x3];
|
buf = errpat[(seed >> 3) & 0x3];
|
next=8;
|
next = 8;
|
break;
|
break;
|
default: /* Never happen, just to make some compilers happy */
|
default: /* Never happen, just to make some compilers happy */
|
break;
|
break;
|
}
|
}
|
}
|
}
|
size++;
|
size++;
|
while (total<size) { /* fill the rest with 0 */
|
while (total < size) { /* fill the rest with 0 */
|
*(p+total)=0;
|
*(p + total) = 0;
|
total++;
|
total++;
|
}
|
}
|
#if CORE_DEBUG
|
#if CORE_DEBUG
|
ee_printf("State Input: %s\n",start);
|
ee_printf("State Input: %s\n", start);
|
#endif
|
#endif
|
}
|
}
|
|
|
static ee_u8 ee_isdigit(ee_u8 c) {
|
static ee_u8 ee_isdigit(ee_u8 c)
|
|
{
|
ee_u8 retval;
|
ee_u8 retval;
|
retval = ((c>='0') & (c<='9')) ? 1 : 0;
|
retval = ((c >= '0') & (c <= '9')) ? 1 : 0;
|
return retval;
|
return retval;
|
}
|
}
|
|
|
/* Function: core_state_transition
|
/* Function: core_state_transition
|
Actual state machine.
|
Actual state machine.
|
|
|
The state machine will continue scanning until either:
|
The state machine will continue scanning until either:
|
1 - an invalid input is detcted.
|
1 - an invalid input is detcted.
|
2 - a valid number has been detected.
|
2 - a valid number has been detected.
|
|
|
The input pointer is updated to point to the end of the token, and the end state is returned (either specific format determined or invalid).
|
The input pointer is updated to point to the end of the token, and the end state is returned (either specific format determined or invalid).
|
*/
|
*/
|
|
|
enum CORE_STATE core_state_transition( ee_u8 **instr , ee_u32 *transition_count) {
|
enum CORE_STATE core_state_transition(ee_u8 ** instr, ee_u32 * transition_count)
|
ee_u8 *str=*instr;
|
{
|
|
ee_u8 *str = *instr;
|
ee_u8 NEXT_SYMBOL;
|
ee_u8 NEXT_SYMBOL;
|
enum CORE_STATE state=CORE_START;
|
enum CORE_STATE state = CORE_START;
|
for( ; *str && state != CORE_INVALID; str++ ) {
|
for (; *str && state != CORE_INVALID; str++) {
|
NEXT_SYMBOL = *str;
|
NEXT_SYMBOL = *str;
|
if (NEXT_SYMBOL==',') /* end of this input */ {
|
if (NEXT_SYMBOL == ',') { /* end of this input */
|
str++;
|
str++;
|
break;
|
break;
|
}
|
}
|
switch(state) {
|
switch (state) {
|
case CORE_START:
|
case CORE_START:
|
if(ee_isdigit(NEXT_SYMBOL)) {
|
if (ee_isdigit(NEXT_SYMBOL)) {
|
state = CORE_INT;
|
state = CORE_INT;
|
}
|
} else if (NEXT_SYMBOL == '+' || NEXT_SYMBOL == '-') {
|
else if( NEXT_SYMBOL == '+' || NEXT_SYMBOL == '-' ) {
|
|
state = CORE_S1;
|
state = CORE_S1;
|
}
|
} else if (NEXT_SYMBOL == '.') {
|
else if( NEXT_SYMBOL == '.' ) {
|
|
state = CORE_FLOAT;
|
state = CORE_FLOAT;
|
}
|
} else {
|
else {
|
|
state = CORE_INVALID;
|
state = CORE_INVALID;
|
transition_count[CORE_INVALID]++;
|
transition_count[CORE_INVALID]++;
|
}
|
}
|
transition_count[CORE_START]++;
|
transition_count[CORE_START]++;
|
break;
|
break;
|
case CORE_S1:
|
case CORE_S1:
|
if(ee_isdigit(NEXT_SYMBOL)) {
|
if (ee_isdigit(NEXT_SYMBOL)) {
|
state = CORE_INT;
|
state = CORE_INT;
|
transition_count[CORE_S1]++;
|
transition_count[CORE_S1]++;
|
}
|
} else if (NEXT_SYMBOL == '.') {
|
else if( NEXT_SYMBOL == '.' ) {
|
|
state = CORE_FLOAT;
|
state = CORE_FLOAT;
|
transition_count[CORE_S1]++;
|
transition_count[CORE_S1]++;
|
}
|
} else {
|
else {
|
|
state = CORE_INVALID;
|
state = CORE_INVALID;
|
transition_count[CORE_S1]++;
|
transition_count[CORE_S1]++;
|
}
|
}
|
break;
|
break;
|
case CORE_INT:
|
case CORE_INT:
|
if( NEXT_SYMBOL == '.' ) {
|
if (NEXT_SYMBOL == '.') {
|
state = CORE_FLOAT;
|
state = CORE_FLOAT;
|
transition_count[CORE_INT]++;
|
transition_count[CORE_INT]++;
|
}
|
} else if (!ee_isdigit(NEXT_SYMBOL)) {
|
else if(!ee_isdigit(NEXT_SYMBOL)) {
|
|
state = CORE_INVALID;
|
state = CORE_INVALID;
|
transition_count[CORE_INT]++;
|
transition_count[CORE_INT]++;
|
}
|
}
|
break;
|
break;
|
case CORE_FLOAT:
|
case CORE_FLOAT:
|
if( NEXT_SYMBOL == 'E' || NEXT_SYMBOL == 'e' ) {
|
if (NEXT_SYMBOL == 'E' || NEXT_SYMBOL == 'e') {
|
state = CORE_S2;
|
state = CORE_S2;
|
transition_count[CORE_FLOAT]++;
|
transition_count[CORE_FLOAT]++;
|
}
|
} else if (!ee_isdigit(NEXT_SYMBOL)) {
|
else if(!ee_isdigit(NEXT_SYMBOL)) {
|
|
state = CORE_INVALID;
|
state = CORE_INVALID;
|
transition_count[CORE_FLOAT]++;
|
transition_count[CORE_FLOAT]++;
|
}
|
}
|
break;
|
break;
|
case CORE_S2:
|
case CORE_S2:
|
if( NEXT_SYMBOL == '+' || NEXT_SYMBOL == '-' ) {
|
if (NEXT_SYMBOL == '+' || NEXT_SYMBOL == '-') {
|
state = CORE_EXPONENT;
|
state = CORE_EXPONENT;
|
transition_count[CORE_S2]++;
|
transition_count[CORE_S2]++;
|
}
|
} else {
|
else {
|
|
state = CORE_INVALID;
|
state = CORE_INVALID;
|
transition_count[CORE_S2]++;
|
transition_count[CORE_S2]++;
|
}
|
}
|
break;
|
break;
|
case CORE_EXPONENT:
|
case CORE_EXPONENT:
|
if(ee_isdigit(NEXT_SYMBOL)) {
|
if (ee_isdigit(NEXT_SYMBOL)) {
|
state = CORE_SCIENTIFIC;
|
state = CORE_SCIENTIFIC;
|
transition_count[CORE_EXPONENT]++;
|
transition_count[CORE_EXPONENT]++;
|
}
|
} else {
|
else {
|
|
state = CORE_INVALID;
|
state = CORE_INVALID;
|
transition_count[CORE_EXPONENT]++;
|
transition_count[CORE_EXPONENT]++;
|
}
|
}
|
break;
|
break;
|
case CORE_SCIENTIFIC:
|
case CORE_SCIENTIFIC:
|
if(!ee_isdigit(NEXT_SYMBOL)) {
|
if (!ee_isdigit(NEXT_SYMBOL)) {
|
state = CORE_INVALID;
|
state = CORE_INVALID;
|
transition_count[CORE_INVALID]++;
|
transition_count[CORE_INVALID]++;
|
}
|
}
|
break;
|
break;
|
default:
|
default:
|
break;
|
break;
|
}
|
}
|
}
|
}
|
*instr=str;
|
*instr = str;
|
return state;
|
return state;
|
}
|
}
|
|
|
