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char buffer[1036];

char buffer2[1036];

int main ()

{

        char *p;

        int i, o, o2, l;

        printf ("Testing memset\n");

        for (l = 1; l < 1020; l ++) {

                for (o = 0; o < 4; o++) {

                        p = buffer + o + 4;

                        for (i = 0; i < l + 12; i++)

                                buffer[i] = 0x55;

                        memset (p, 0xaa, l);

                        for (i = 0; i < l; i++)

                                if (p[i] != 0xaa)

                                        printf ("Error: %X+%d\n", p, i);

                        if (p[-1] != 0x55 || p[-2] != 0x55 || p[-3] != 0x55 || p[-4] != 0x55)

                                printf ("Error before %X\n", p);

                        if (p[l] != 0x55 || p[l+1] != 0x55 || p[l+2] != 0x55 || p[l+3] != 0x55)

                                printf ("Error at end: %p: %02X %02X %02X %02X\n", p+l, p[l], p[l+1], p[l+2], p[l+3]);

                }

        }

        printf ("Testing memcpy s > d\n");

        for (l = 1; l < 1020; l++) {

                for (o = 0; o < 4; o++) {

                        for (o2 = 0; o2 < 4; o2++) {

                                char *d, *s;

                                for (i = 0; i < l + 12; i++)

                                        buffer[i] = (i & 0x3f) + 0x40;

                                for (i = 0; i < 1036; i++)

                                        buffer2[i] = 0;

                                s = buffer + o;

                                d = buffer2 + o2 + 4;

                                memcpy (d, s, l);

                                for (i = 0; i < l; i++)

                                        if (s[i] != d[i])

                                                printf ("Error at %X+%d -> %X+%d (%02X != %02X)\n", s, i, d, i, s[i], d[i]);

                                if (d[-1] || d[-2] || d[-3] || d[-4])

                                        printf ("Error before %X\n", d);

                                if (d[l] || d[l+1] || d[l+2] || d[l+3])

                                        printf ("Error after %X\n", d+l);

                        }

                }

        }

        printf ("Testing memcpy s < d\n");

        for (l = 1; l < 1020; l++) {

                for (o = 0; o < 4; o++) {

                        for (o2 = 0; o2 < 4; o2++) {

                                char *d, *s;

                                for (i = 0; i < l + 12; i++)

                                        buffer2[i] = (i & 0x3f) + 0x40;

                                for (i = 0; i < 1036; i++)

                                        buffer[i] = 0;

                                s = buffer2 + o;

                                d = buffer + o2 + 4;

                                memcpy (d, s, l);

                                for (i = 0; i < l; i++)

                                        if (s[i] != d[i])

                                                printf ("Error at %X+%d -> %X+%d (%02X != %02X)\n", s, i, d, i, s[i], d[i]);

                                if (d[-1] || d[-2] || d[-3] || d[-4])

                                        printf ("Error before %X\n", d);

                                if (d[l] || d[l+1] || d[l+2] || d[l+3])

                                        printf ("Error after %X\n", d+l);

                        }

                }

        }

}