From c5fcf7179a83ef65c86c6a4a390029149e518649 Mon Sep 17 00:00:00 2001 From: Franciszek Malinka Date: Tue, 5 Oct 2021 21:49:54 +0200 Subject: Duzy commit ze smieciami --- Semestr 4/ask/lista1/rozw.c | 217 -------------------------------------------- 1 file changed, 217 deletions(-) delete mode 100644 Semestr 4/ask/lista1/rozw.c (limited to 'Semestr 4/ask/lista1/rozw.c') diff --git a/Semestr 4/ask/lista1/rozw.c b/Semestr 4/ask/lista1/rozw.c deleted file mode 100644 index 0b4c208..0000000 --- a/Semestr 4/ask/lista1/rozw.c +++ /dev/null @@ -1,217 +0,0 @@ -#include -#include - - -static const int S[] = {1, 2, 4, 8, 16}; // Magic Binary Numbers -static const int B[] = {0x55555555, 0x33333333, 0x0F0F0F0F, 0x00FF00FF, 0x0000FFFF}; - -char* utb(uint32_t x) { - static char rep[36]; - int cnt = 34; - for (int i = 0; i < 32; i += 1) { - if (i > 0 && i % 8 == 0) { - rep[cnt] = ' '; - cnt -= 1; - } - rep[cnt] = (x & 1) + '0'; - cnt -= 1; - x >>= 1; - } - rep[35] = '\0'; - return rep; -} - -void pb(uint32_t x) { - printf("%s : %d\n", utb(x), x); -} - -struct A { - int8_t a; - void *b; - int8_t c; - int16_t d; -}; - -struct B { - void *c; - double b; - int16_t a; -}; - -struct C { - int8_t a; - int8_t c; - int16_t d; - void *b; -}; - -// zaklada count > 0 -void secret(uint8_t *to, uint8_t *from, size_t count) { - size_t n = (count + 7) / 8; - switch (count % 8) { - case 0: do { *to++ = *from++; - case 7: *to++ = *from++; - case 6: *to++ = *from++; - case 5: *to++ = *from++; - case 4: *to++ = *from++; - case 3: *to++ = *from++; - case 2: *to++ = *from++; - case 1: *to++ = *from++; - } while (--n > 0); - } -} - -// zaklada count > 0 -void goto_secret(uint8_t *to, uint8_t *from, size_t count) { - size_t n = (count + 7) / 8; - static void *array[] = { &&finito, &&c0, &&c1, &&c2, &&c3, &&c4, &&c5, &&c6, &&c7 }; - goto *array[count % 8 + 1]; - c0: *to++ = *from++; - c7: *to++ = *from++; - c6: *to++ = *from++; - c5: *to++ = *from++; - c4: *to++ = *from++; - c3: *to++ = *from++; - c2: *to++ = *from++; - c1: *to++ = *from++; - goto *array[(--n > 0)]; - finito: return; -} - -int main() { - /* Zadanie 1 */ - printf("Zadanie 1:\n"); - - uint32_t i = 7, k = 15, x = 15689126; - - pb(x); - uint32_t c = (((1<> i) << k; // 0010 0000 - x = (x & ~(1<> 1) & B[0]); pb(c); - c = ((c >> S[1]) & B[1]) + (c & B[1]); pb(c); - c = ((c >> S[2]) + c) & B[2]; pb(c); - c = ((c >> S[3]) + c) & B[3]; pb(c); - c = ((c >> S[4]) + c) & B[4]; pb(c); - printf("-----------------\n"); - // wersja dla koksow - v = v - ((v >> 1) & 0x55555555); pb(v);// reuse input as temporary - v = ((v >> 2) & 0x33333333) + (v & 0x33333333); pb(v); // temp - c = ((v + (v >> 4) & 0xF0F0F0F) * 0x1010101) >> 24; pb(c); // count - - - /* Zadanie 3 */ - printf("Zadanie 3:\n"); - - struct A a; - struct B b; - struct C d; - int8_t x1; - void *x2; - int16_t x3; - printf("%lu %lu %lu\n", sizeof x1, sizeof x2, sizeof x3); - printf("%lu %lu %lu\n", sizeof a, sizeof b, sizeof d); - - - /* Zadanie 4 */ - - - /* Zadanie 5 */ - - /* s += b[j + 1] + b[--j]; - * - * t1 := j + 1 - * t2 := t1 * 4 - * t3 := b[t2] - * j := j - 1 - * t4 := j * 4 - * t5 := b[t4] - * t6 := t4 + t5 // Czy na pewno tak? - * s := s + t6 - * - * a[i++] -= *b * (c[j*2] + 1); - * - * t1 := *b - * t2 := j * 2 - * t3 := t2 * 4 - * t4 := c[t3] - * t5 := t4 + 1 - * t6 := t1 * t5 - * a := a - t6 - * i := i + 1 - */ - - /* Zadanie 6 */ - /* vs->d = us[1].a + us[j].c; - * t1 := 1 * 12 - * t2 := us + t1 - * t2' := us + 0 // chcemy dostać się do a, ale jest na poczatku, wiec nic dodawac nie trzeba - * t3 := *t2 - * t4 := j * 12 - * t5 := us + t4 - * t6 := t5 + 8 - * t7 := *t6 - * t8 := t3 + t7 - * t9 := vs + 9 - * *t9 := t8 - */ - - /* Zadanie 7 */ - - /* I := 0 ; <> - goto ITest - ILoop: J := I ; <> - goto WTest - WLoop: t1 := 4 * J ; <> - Temp := arr[t1] ; arr[J] - t2 := J - 1 - t3 := 4 * t2 - t4 := arr[t3] ; arr[J - 1] - arr[t1] := t4 ; arr[J] := arr[J - 1] - arr[t3] := Temp ; arr[J - 1] := Temp - J := J - 1 - WTest: if J <= 0 goto IPlus ; <> - t4 := 4 * J ; <> - t5 := arr[t4] - t6 := J - 1 - t7 = 4 * t6 - t8 := arr[t7] - if t5 >= t8 goto IPlus - goto WLoop ; <> - IPlus: I := I + 1 ; <> - ITest: if I < length goto ILoop ; <> - */ - - - /* Zadanie 8 */ - printf("Zadanie 8:\n"); - - // secret kopiuje wartości na które wskazuje from do miejsca w które wskazuje to, - // przesuwa oba wskaźniki i powtarza tak count razy (czyli efektywnie kopiuje np. tablice) - - uint8_t t1[10] = {1,2,3,0,5,100,7,8,9,10}, t2[10]; - uint8_t* to = t2 + 2, *from = t1 + 3; - size_t count = 4; - - goto_secret(to, from, count); - - for (int i = 0; i < 10; i++) - printf("%hhd ", t1[i]); - printf("\n"); - for (int i = 0; i < 10; i++) - printf("%hhd ", t2[i]); - printf("\n"); - - i = 3; - t1[i++] = i; - printf("%hhd\n", t1[i-1]); -} \ No newline at end of file -- cgit v1.2.3