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109 строки
2.8 KiB
C++
109 строки
2.8 KiB
C++
#include <iostream>
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#include <string>
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#include <assert.h>
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using namespace std;
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//ïðåîáðàçîâàíèå îäíîé øåñòíàäöàòåðè÷íîé öèôðû â ASCII ñèìâîë
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char nibble_to_hex(uint8_t i)
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{
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char digits[] = "0123456789abcdef"; //ìàññèâ ñèìâîëîâ äëÿ ïðåîáðàçîâàíèÿ
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assert(0x0 <= i && i <= 0xf); //ïðîâåðêà ÷òîáû çíà÷åíèå íàõîäèëîñü â äîïóñòèìîì äèàïàçîíå
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return digits[i]; //âåðíóòü ñèìâîë, ñîîòâåñòâóþùèé öèôðå
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}
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//âûâîä áàéòà â øåñòíàäöàòåðè÷íîé ñèñòåìå íà ýêðàí
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void print_in_hex(uint8_t byte) {
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cout << nibble_to_hex(byte >> 4)
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<< nibble_to_hex(byte & 0xf);
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}
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//ïðåîáðàçîâàíèå òèïà óêàçàòåëÿ ê áàéòîâîìó
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const uint8_t* as_bytes(const void* data)
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{
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return reinterpret_cast<const uint8_t*>(data);
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}
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//âûâîä áëîêà äàííûõ â âèäå 16ðè÷íûõ áàéò
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void print_in_hex(const void* data, size_t size) {
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const uint8_t* bytes = as_bytes(data); //ïðåîáðàçîâàòü óêàçàòåëü â áàéòîâûé
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for (size_t i = 0; i < size; i++) {
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print_in_hex(bytes[i]);
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// Äëÿ óäîáñòâà ÷òåíèÿ: ïðîáåëû ìåæäó áàéòàì, ïî 16 áàéò íà ñòðîêó.
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if ((i + 1) % 16 == 0) { //ïîñëå âûâîäà 16 áàéò ïåðåõîäèòü íà íîâóþ ñòðîêó
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cout << '\n';
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}
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else {
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cout << ' ';
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}
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}
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}
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//ïðåîáðàçîâàíèå îäíîé äâîè÷íîé öèôðû â ASCII ñèìâîë
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char bit_digit(uint8_t byte, uint8_t bit) {
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if (byte & (0x1 << bit)) {
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return '1';
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}
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return '0';
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}
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//âûâîä áàéòà â äâîè÷íîé ñèñòåìå íà ýêðàí
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void print_in_binary(uint8_t byte) {
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for (int bit = 7; bit >= 0; bit--) {//ïîáèòîâûé âûâîä
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cout << bit_digit(byte, bit);
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}
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}
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//âûâîä áëîêà äàííûõ â âèäå äâîè÷íûõ áàéò
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void print_in_binary(const void* data, size_t size) {
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const uint8_t* bytes = as_bytes(data);
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for (size_t i = 0; i < size; i++) {
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print_in_binary(bytes[i]);
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// Äëÿ óäîáñòâà ÷òåíèÿ: ïðîáåëû ìåæäó áàéòàìè, ïî 4 áàéòà íà ñòðîêó.
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if ((i + 1) % 4 == 0) {
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cout << '\n';
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}
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else {
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cout << ' ';
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}
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}
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}
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int main()
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{
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string action;
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uint16_t operand1, operand2, result;
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setlocale(LC_ALL, "Russian");//ðóññêàÿ ëîêàëü
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cout << "Ââåäèòå âûðàæåíèå: ";
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//ââîä ýëåìåíòîâ âûðàæåíèÿ
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cin >> operand1;
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cin >> action;
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cin >> operand2;
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if (action == "&") //â çàâèñèìîñòè îò ââåäåííîãî äåéñòâèÿ âûïîëíÿåì ñîîòâ îïåðàöèþ íàä îïåðàíäàìè
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{
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result = operand1 & operand2;
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}
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else if (action == "|")
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{
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result = operand1 | operand2;
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}
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else if (action == "^")
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{
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result = operand1 ^ operand2;
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}
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else
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{
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cout << "Íåèçâåñòíîå äåéñòâèå" << endl;
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system("pause");
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return 1;
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}
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//âûâîä â 16ðè÷íîé ñèñòåìå
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print_in_hex(&operand1, sizeof(operand1));
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cout << action << " ";
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print_in_hex(&operand2, sizeof(operand2));
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cout << "= ";
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print_in_hex(&result, sizeof(result));
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cout << endl;
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//è äâîè÷íîé
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print_in_binary(&operand1, sizeof(operand1));
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cout << action << endl;
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print_in_binary(&operand2, sizeof(operand2));
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cout << "=" << endl;
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print_in_binary(&result, sizeof(result));
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cout << endl;
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system("pause");
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return 0;
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}
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