#include <stdio.h>
#include <stdint.h>

int main(void) {
    const uint32_t base[3] = {32u * 1024, 34u * 1024, 28u * 1024};
    const uint32_t bounds[3] = {2u * 1024, 3u * 1024, 2u * 1024};
    const char *names[3] = {"code", "heap", "stack"};
    const uint32_t vas[3] = {100, 4200, 7168};
    for (int i = 0; i < 3; i++) {
        uint32_t va = vas[i];
        uint32_t seg = (va >> 12) & 3u;
        uint32_t offset = va & 0xFFFu;
        printf("VA %u (0x%x): ", va, va);
        if (seg > 2u) {
            printf("invalid segment\n");
            continue;
        }
        if (offset >= bounds[seg]) {
            printf("segmentation fault (offset %u >= %u in %s)\n",
                   offset, bounds[seg], names[seg]);
        } else {
            uint32_t pa = base[seg] + offset;
            printf("segment %s, offset %u -> PA %u\n",
                   names[seg], offset, pa);
        }
    }
    return 0;
}