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https://opencores.org/ocsvn/eco32/eco32/trunk
Subversion Repositories eco32
[/] [eco32/] [tags/] [eco32-0.25/] [stdalone/] [memtest/] [main.c] - Rev 283
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/* * main.c -- ECO32 memory test */ #include "types.h" #include "stdarg.h" #include "iolib.h" #define K 1024 #define M (K * K) #define MEM_ADDR ((void *) (0xC0000000 + 0x10000 + 0x3000)) #define MEM_SIZE (32 * M - (0x10000 + 0x3000)) #define PASSES 3 /**************************************************************/ unsigned int randomNumber; void setRandomNumber(unsigned int seed) { randomNumber = seed; } unsigned int getRandomNumber(void) { randomNumber = randomNumber * (unsigned) 1103515245 + (unsigned) 12345; return randomNumber; } /**************************************************************/ void writeWords(void *start, unsigned int numWords, unsigned int seed) { unsigned int *addr; unsigned int rn; setRandomNumber(seed); addr = (unsigned int *) start; while (numWords -= 1) { rn = getRandomNumber(); *addr++ = rn; } } void writeHalfs(void *start, unsigned int numHalfs, unsigned int seed) { unsigned short *addr; unsigned int rn; setRandomNumber(seed); addr = (unsigned short *) start; while (numHalfs -= 2) { rn = getRandomNumber(); *addr++ = (rn >> 16) & 0x0000FFFF; *addr++ = (rn >> 0) & 0x0000FFFF; } } void writeBytes(void *start, unsigned int numBytes, unsigned int seed) { unsigned char *addr; unsigned int rn; setRandomNumber(seed); addr = (unsigned char *) start; while (numBytes -= 4) { rn = getRandomNumber(); *addr++ = (rn >> 24) & 0x000000FF; *addr++ = (rn >> 16) & 0x000000FF; *addr++ = (rn >> 8) & 0x000000FF; *addr++ = (rn >> 0) & 0x000000FF; } } unsigned int readWords(void *start, unsigned int numWords, unsigned int seed) { unsigned int errors; unsigned int *addr; unsigned int rn; errors = 0; setRandomNumber(seed); addr = (unsigned int *) start; while (numWords -= 1) { rn = getRandomNumber(); if (*addr++ != rn) { errors++; } } return errors; } unsigned int readHalfs(void *start, unsigned int numHalfs, unsigned int seed) { unsigned int errors; unsigned short *addr; unsigned int rn; errors = 0; setRandomNumber(seed); addr = (unsigned short *) start; while (numHalfs -= 2) { rn = getRandomNumber(); if (*addr++ != ((rn >> 16) & 0x0000FFFF)) { errors++; } if (*addr++ != ((rn >> 0) & 0x0000FFFF)) { errors++; } } return errors; } unsigned int readBytes(void *start, unsigned int numBytes, unsigned int seed) { unsigned int errors; unsigned char *addr; unsigned int rn; errors = 0; setRandomNumber(seed); addr = (unsigned char *) start; while (numBytes -= 4) { rn = getRandomNumber(); if (*addr++ != ((rn >> 24) & 0x000000FF)) { errors++; } if (*addr++ != ((rn >> 16) & 0x000000FF)) { errors++; } if (*addr++ != ((rn >> 8) & 0x000000FF)) { errors++; } if (*addr++ != ((rn >> 0) & 0x000000FF)) { errors++; } } return errors; } /**************************************************************/ void memtest(void *start, unsigned int size, int passes) { int i; int j; unsigned int seed; setRandomNumber(10007); for (i = 1; i <= passes; i++) { printf("Pass %d\n", i); /* -------------------- */ printf(" writing words...\n"); for (j = 0; j < i; j++) { getRandomNumber(); } seed = getRandomNumber(); writeWords(start, size / 4, seed); printf(" reading words: "); printf("%d", readWords(start, size / 4, seed)); printf(" errors\n"); printf(" reading halfs: "); printf("%d", readHalfs(start, size / 2, seed)); printf(" errors\n"); printf(" reading bytes: "); printf("%d", readBytes(start, size / 1, seed)); printf(" errors\n"); /* -------------------- */ printf(" writing halfs...\n"); for (j = 0; j < i; j++) { getRandomNumber(); } seed = getRandomNumber(); writeHalfs(start, size / 2, seed); printf(" reading words: "); printf("%d", readWords(start, size / 4, seed)); printf(" errors\n"); printf(" reading halfs: "); printf("%d", readHalfs(start, size / 2, seed)); printf(" errors\n"); printf(" reading bytes: "); printf("%d", readBytes(start, size / 1, seed)); printf(" errors\n"); /* -------------------- */ printf(" writing bytes...\n"); for (j = 0; j < i; j++) { getRandomNumber(); } seed = getRandomNumber(); writeBytes(start, size / 1, seed); printf(" reading words: "); printf("%d", readWords(start, size / 4, seed)); printf(" errors\n"); printf(" reading halfs: "); printf("%d", readHalfs(start, size / 2, seed)); printf(" errors\n"); printf(" reading bytes: "); printf("%d", readBytes(start, size / 1, seed)); printf(" errors\n"); } } /**************************************************************/ int main(void) { printf("\nECO32 memory test started\n\n"); memtest(MEM_ADDR, MEM_SIZE, PASSES); printf("\nECO32 memory test finished\n"); return 0; }
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