printer.c File Reference

#include <global.h>
#include <io/kio.h>
#include <types/nums.h>
#include <types/vargs.h>

Go to the source code of this file.

Functions
void	Kcfp ()
	Clears the screen by filling the video memory with spaces.
void	Kputchar (char c)
	Outputs a single character to the screen at the current cursor position.
void	KputcharBackspace ()
	Handles backspace keypress by moving the cursor back and clearing the character.
void	KprintHex (u32 num)
	Prints a 32-bit unsigned integer in hexadecimal format prefixed with "0x".
void	KprintDec (int num)
	Prints a signed integer in decimal format.
void	KprintStr (const char *str)
	Prints a null-terminated string to the screen.
void	Kprintf (const char *fmt,...)
	Formatted output to the screen.

Function Documentation

Kcfp()

void Kcfp

(

)

Clears the screen by filling the video memory with spaces.

Resets cursor position to the top-left corner (0,0).

Definition at line 28 of file printer.c.

KprintDec()

void KprintDec

(

int

num

)

Prints a signed integer in decimal format.

Handles zero and negative numbers correctly.

Parameters

num	The number to print

Definition at line 108 of file printer.c.

Kprintf()

void Kprintf	(	const char *	fmt,
			... )

Formatted output to the screen.

Supports format specifiers:

• c : character
• s : string
• d : signed decimal integer
• x : unsigned hexadecimal integer
• %% : literal percent sign

Parameters

fmt	Format string
...	Variable arguments corresponding to format specifiers

Definition at line 152 of file printer.c.

KprintHex()

void KprintHex

(

u32

num

)

Prints a 32-bit unsigned integer in hexadecimal format prefixed with "0x".

Example output: 0xDEADBEEF

Parameters

num	The number to print

Definition at line 92 of file printer.c.

KprintStr()

void KprintStr

(

const char *

str

)

Prints a null-terminated string to the screen.

Parameters

str	Pointer to the string to print

Definition at line 133 of file printer.c.

Kputchar()

void Kputchar

(

char

c

)

Outputs a single character to the screen at the current cursor position.

Supports newline ('
') to move cursor to the next line. Advances cursor position and scrolls screen if necessary.

Parameters

c	Character to output

Definition at line 46 of file printer.c.

KputcharBackspace()

void KputcharBackspace

(

)

Handles backspace keypress by moving the cursor back and clearing the character.

Definition at line 71 of file printer.c.