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Kernel: Add floating point printing to kprint

This commit is contained in:
Bananymous 2022-12-08 20:20:40 +02:00
parent 817de9f359
commit ef56f9a239
1 changed files with 24 additions and 1 deletions
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25
kernel/include/kernel/kprint.h
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@ -5,7 +5,6 @@
#include <stdint.h> #include <stdint.h>
#include <string.h> #include <string.h>
template<typename T> template<typename T>
static void kprint_signed(T value) static void kprint_signed(T value)
{ {
@ -58,6 +57,26 @@ static void kprint_unsigned(T value)
terminal_write(ptr, sizeof(buffer) - (ptr - buffer)); terminal_write(ptr, sizeof(buffer) - (ptr - buffer));
} }
template<typename T>
static void kprint_floating(T value, int percision)
{
uint64_t int_part = (uint64_t)value;
T frac_part = value - (T)int_part;
kprint_signed(int_part);
terminal_write(".", 1);
while (percision > 0)
{
frac_part *= 10;
if (percision == 1)
frac_part += 0.5;
char digit = (uint8_t)frac_part % 10 + '0';
terminal_write(&digit, 1);
percision--;
}
}
template<typename T> template<typename T>
static void kprint_val(T) static void kprint_val(T)
@ -94,6 +113,10 @@ template<> void kprint_val(unsigned int value) { kprint_unsigned(value
template<> void kprint_val(unsigned long int value) { kprint_unsigned(value); } template<> void kprint_val(unsigned long int value) { kprint_unsigned(value); }
template<> void kprint_val(unsigned long long int value) { kprint_unsigned(value); } template<> void kprint_val(unsigned long long int value) { kprint_unsigned(value); }
template<> void kprint_val(float value) { kprint_floating(value, 3); }
template<> void kprint_val(double value) { kprint_floating(value, 3); }
template<> void kprint_val(long double value) { kprint_floating(value, 3); }
template<> void kprint_val( char value) { terminal_putchar(value); } template<> void kprint_val( char value) { terminal_putchar(value); }
template<> void kprint_val(signed char value) { kprint_signed(value); } template<> void kprint_val(signed char value) { kprint_signed(value); }
template<> void kprint_val(unsigned char value) { kprint_unsigned(value); } template<> void kprint_val(unsigned char value) { kprint_unsigned(value); }