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119 строки
2.5 KiB
C++
119 строки
2.5 KiB
C++
#include <iostream>
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#include <cassert>
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using namespace std;
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//char nibble_to_hex(uint8_t i)
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char nibble_to_hex(uint8_t i) //Conversion to hex format
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{
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assert(0x0 <= i && i <= 0xf);
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return "0123456789abcdef"[i];
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}
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void print_in_hex(uint8_t byte)
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{
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cout << nibble_to_hex(byte >> 4)
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<< nibble_to_hex(byte & 0xf)
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<< endl;
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}
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const uint8_t* as_bytes(const void* data);
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void print_in_hex(const void* data, size_t size)
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{
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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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{
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print_in_hex(bytes[i]);
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if ((i + 1) % 16 == 0)
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{
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cout << '\n';
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}
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else
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{
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cout << ' ';
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}
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}
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}
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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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char
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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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#include <iostream>
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#include <cassert>
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#include <iomanip>
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using namespace std;
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// ... (îñòàëüíûå ôóíêöèè èç ïðåäûäóùåãî êîäà îñòàþòñÿ áåç èçìåíåíèé)
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void print_in_binary(uint8_t byte) {
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for (int bit = 7; bit >= 0; bit--) {
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cout << bit_digit(byte, bit);
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}
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}
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void print_in_binary(const void* data, size_t size) {
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const uint8_t* bytes = static_cast<const uint8_t*>(data);
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// Ïå÷àòàåì áàéòû â îáðàòíîì ïîðÿäêå äëÿ ïðàâèëüíîãî îòîáðàæåíèÿ ÷èñåë
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for (int i = size - 1; i >= 0; i--) {
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print_in_binary(bytes[i]);
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// Ðàçäåëèòåëè äëÿ óäîáñòâà ÷òåíèÿ
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if (i > 0) {
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if (i % 4 == 0)
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cout << "\n";
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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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// Òåñòèðîâàíèå ÷èñåë èç ëåêöèîííîãî ñëàéäà
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uint16_t a = 0x4d2; // 1234 â äåñÿòè÷íîé
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uint16_t b = 0x1234; // 4660 â äåñÿòè÷íîé
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cout << "0x4d2 (1234) in binary:\n";
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print_in_binary(&a, sizeof(a));
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cout << "\n\n";
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cout << "0x1234 (4660) in binary:\n";
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print_in_binary(&b, sizeof(b));
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cout << "\n\n";
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// Ïðèìåð ñ àðèôìåòè÷åñêèìè îïåðàöèÿìè
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uint16_t sum = a + b;
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uint16_t diff = b - a;
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uint16_t xorr = a ^ b;
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cout << "Sum (0x4d2 + 0x1234):\n";
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print_in_binary(&sum, sizeof(sum));
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cout << "\n\n";
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cout << "Difference (0x1234 - 0x4d2):\n";
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print_in_binary(&diff, sizeof(diff));
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cout << "\n\n";
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cout << "XOR (0x4d2 ^ 0x1234):\n";
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print_in_binary(&xorr, sizeof(xorr));
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cout << "\n\n";
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cin.ignore();
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return 0;
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}
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