memtest.c

/*
 * My MEM-TEST-SUITE based on Michael Barr code
 */

/* badanie zwarc miedzy nogami */
int mem_short_test(U8* saddr, int size)
{
    char buf[256];
    U8 pattern = 0xAA;
    int addr_mask = size-1;
    int offset, testoffset;

    for (offset=1; (offset & addr_mask)!=0; offset<<=1) {

        saddr[offset] = pattern;

        for (testoffset=1; testoffset !=0; testoffset<<=1) {
            if (offset == testoffset) continue;

            if (saddr[offset | testoffset] == pattern) {
                sprintf(buf, "Prawdopodobne zwarcie pinow %d i %d\n",
                        ff_bit_num(offset), ff_bit_num(testoffset));
                print_wrap(0, buf);
                while(1);
            }
        }
    }
}

/* badanie zwarcia do plusa */
int mem_h_pin_test(U8* saddr, int size)
{
    char buf[256];
    U8 pattern = 0xAA;
    U8 antipattern = 0x55;
    int addr_mask = size-1;
    int offset, testoffset;

    /* jesli ktorys z testowanych pinow jest zwarty do '+'
     * to pod adresem 1111...itd zapisze sie 'pattern'*/
    saddr[addr_mask] = antipattern;
    for (offset=1; (offset & addr_mask)!=0; offset<<=1) {
        testoffset = ~offset;
        testoffset = testoffset & addr_mask;

        saddr[testoffset] = pattern;

        if (saddr[addr_mask] != antipattern) {
            sprintf(buf, "Prawdopodobne zwarcie do '+' pinu %d\n",
                    ff_bit_num(offset));
            print_wrap(0, buf);
            while(1);
        }
    }
}

/* badanie zwarcia do masy */
int mem_l_pin_test(U8* saddr, int size)
{
    char buf[256];
    U8 pattern = 0xAA;
    U8 antipattern = 0x55;
    int addr_mask = size-1;
    int offset, testoffset;

    /* w razie zwarcia ktorejs z testowanych nog 'pattern' zapisze
     * sie wlasnie w saddr[0] */
    saddr[0] = antipattern;
    for (offset=1; (offset & addr_mask)!=0; offset<<=1) {

        saddr[offset] = pattern;

        if (saddr[0] != antipattern) {
            sprintf(buf, "Prawdopodobne zwarcie do '0' pinu %d\n",
                    ff_bit_num(offset));
            print_wrap(0, buf);
            while(1);
        }
    }
}