forked from Bananymous/banan-os
151 lines
3.7 KiB
C++
151 lines
3.7 KiB
C++
#pragma once
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#include <kernel/tty.h>
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#include <stdint.h>
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#include <string.h>
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template<typename T>
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static void kprint_signed(T value)
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{
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if (value == 0)
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{
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terminal_putchar('0');
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return;
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}
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char buffer[32];
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char* ptr = buffer + sizeof(buffer);
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bool sign = false;
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if (value < 0)
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{
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sign = true;
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*(--ptr) = ((10 - (value % 10)) % 10) + '0';
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value = -(value / 10);
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}
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while (value)
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{
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*(--ptr) = (value % 10) + '0';
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value /= 10;
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}
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if (sign)
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*(--ptr) = '-';
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terminal_write(ptr, sizeof(buffer) - (ptr - buffer));
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}
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template<typename T>
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static void kprint_unsigned(T value)
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{
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if (value == 0)
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{
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terminal_putchar('0');
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return;
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}
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char buffer[32];
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char* ptr = buffer + sizeof(buffer);
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while (value)
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{
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*(--ptr) = (value % 10) + '0';
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value /= 10;
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}
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terminal_write(ptr, sizeof(buffer) - (ptr - buffer));
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}
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template<typename T>
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static void kprint_val(T)
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{
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terminal_writestring("<unknown type>");
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}
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static void kprint(const char* format)
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{
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terminal_writestring(format);
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}
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template<typename Arg, typename... Args>
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static void kprint(const char* format, Arg arg, Args... args)
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{
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const char* next = strstr(format, "{}");
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if (next == NULL)
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{
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terminal_writestring(format);
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return;
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}
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terminal_write(format, next - format);
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kprint_val<Arg>(arg);
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kprint(next + 2, args...);
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}
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template<> void kprint_val(short int value) { kprint_signed(value); }
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template<> void kprint_val( int value) { kprint_signed(value); }
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template<> void kprint_val(long int value) { kprint_signed(value); }
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template<> void kprint_val(long long int value) { kprint_signed(value); }
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template<> void kprint_val(unsigned short int value) { kprint_unsigned(value); }
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template<> void kprint_val(unsigned int value) { kprint_unsigned(value); }
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template<> void kprint_val(unsigned long int value) { kprint_unsigned(value); }
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template<> void kprint_val(unsigned long long int value) { kprint_unsigned(value); }
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template<> void kprint_val( char value) { terminal_putchar(value); }
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template<> void kprint_val(signed char value) { kprint_signed(value); }
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template<> void kprint_val(unsigned char value) { kprint_unsigned(value); }
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template<> void kprint_val(const char* value) { terminal_writestring(value); }
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template<> void kprint_val(char* value) { terminal_writestring(value); }
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static char bits_to_hex(uint8_t val)
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{
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val = val & 0xF;
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if (val < 10)
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return val + '0';
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return val + 'a' - 10;
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}
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template<> void kprint_val(void* value)
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{
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terminal_write("0x", 2);
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if constexpr(sizeof(void*) == sizeof(uint32_t))
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{
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uint32_t addr = (uint32_t)value;
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terminal_putchar(bits_to_hex(addr >> 28));
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terminal_putchar(bits_to_hex(addr >> 24));
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terminal_putchar(bits_to_hex(addr >> 20));
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terminal_putchar(bits_to_hex(addr >> 16));
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terminal_putchar(bits_to_hex(addr >> 12));
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terminal_putchar(bits_to_hex(addr >> 8));
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terminal_putchar(bits_to_hex(addr >> 4));
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terminal_putchar(bits_to_hex(addr >> 0));
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}
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else
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{
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uint64_t addr = (uint64_t)value;
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terminal_putchar(bits_to_hex(addr >> 60));
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terminal_putchar(bits_to_hex(addr >> 56));
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terminal_putchar(bits_to_hex(addr >> 52));
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terminal_putchar(bits_to_hex(addr >> 48));
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terminal_putchar(bits_to_hex(addr >> 44));
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terminal_putchar(bits_to_hex(addr >> 40));
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terminal_putchar(bits_to_hex(addr >> 36));
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terminal_putchar(bits_to_hex(addr >> 32));
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terminal_putchar(bits_to_hex(addr >> 28));
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terminal_putchar(bits_to_hex(addr >> 24));
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terminal_putchar(bits_to_hex(addr >> 20));
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terminal_putchar(bits_to_hex(addr >> 16));
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terminal_putchar(bits_to_hex(addr >> 12));
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terminal_putchar(bits_to_hex(addr >> 8));
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terminal_putchar(bits_to_hex(addr >> 4));
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terminal_putchar(bits_to_hex(addr >> 0));
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}
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}
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