Neels Hofmeyr | 6862cd3 | 2020-09-13 23:56:21 +0200 | [diff] [blame^] | 1 | #include <inttypes.h> |
| 2 | #include <osmocom/core/bit16gen.h> |
| 3 | #include <osmocom/core/bit32gen.h> |
| 4 | #include <osmocom/core/bit64gen.h> |
| 5 | |
| 6 | #define DO_TEST(BE_LE, SIZE) do { \ |
| 7 | int8_t len; \ |
| 8 | printf("--- " #SIZE " " #BE_LE "\n"); \ |
| 9 | for (len = SIZE / 8; len > 0; len--) { \ |
| 10 | uint8_t buf[len * 2]; \ |
| 11 | uint8_t at_idx; \ |
| 12 | uint##SIZE##_t val = (uint##SIZE##_t)0x8877665544332211; \ |
| 13 | \ |
| 14 | for (at_idx = 0; at_idx < len; at_idx++) { \ |
| 15 | uint##SIZE##_t read_val = 0; \ |
| 16 | memset(buf, 0, sizeof(buf)); \ |
| 17 | osmo_store##SIZE####BE_LE##_ext(val, &buf[at_idx], len); \ |
| 18 | printf("osmo_store" #SIZE #BE_LE "_ext(0x%" PRIx##SIZE ", &buf[%d], %d) = %s\n", \ |
| 19 | val, \ |
| 20 | at_idx, len, osmo_hexdump(buf, sizeof(buf))); \ |
| 21 | \ |
| 22 | read_val = osmo_load##SIZE####BE_LE##_ext(&buf[at_idx], len); \ |
| 23 | printf("osmo_load" #SIZE #BE_LE "_ext(&buf[%d], %d) = 0x%" PRIx##SIZE "\n", \ |
| 24 | at_idx, len, read_val); \ |
| 25 | } \ |
| 26 | } \ |
| 27 | } while (0) |
| 28 | |
| 29 | |
| 30 | int main(int argc, char **argv) |
| 31 | { |
| 32 | DO_TEST(be, 16); |
| 33 | DO_TEST(le, 16); |
| 34 | DO_TEST(be, 32); |
| 35 | DO_TEST(le, 32); |
| 36 | DO_TEST(be, 64); |
| 37 | DO_TEST(le, 64); |
| 38 | |
| 39 | { |
| 40 | printf("--- store/load 0x112233 as 24bit big-endian\n"); |
| 41 | uint8_t buf[4]; |
| 42 | memset(buf, 0, sizeof(buf)); |
| 43 | osmo_store32be_ext(0x00112233, buf, 3); // stores 11 22 33 |
| 44 | printf("%s\n", osmo_hexdump(buf, 4)); |
| 45 | uint32_t r = osmo_load32be_ext(buf, 3); // returns 0x11223300, not 0x00112233 |
| 46 | printf("0x%x\n", r); |
| 47 | } |
| 48 | |
| 49 | { |
| 50 | printf("--- store/load 0x112233 as 24bit little-endian\n"); |
| 51 | uint8_t buf[4]; |
| 52 | memset(buf, 0, sizeof(buf)); |
| 53 | osmo_store32le_ext(0x00112233, buf, 3); // stores 33 22 11 |
| 54 | printf("%s\n", osmo_hexdump(buf, 4)); |
| 55 | uint32_t r = osmo_load32le_ext(buf, 3); // returns 0x00112233 |
| 56 | printf("0x%x\n", r); |
| 57 | } |
| 58 | |
| 59 | return 0; |
| 60 | } |