madeinhellOS

IT'S A WORK IN PROGRESS(memory managment in work now, next will be threads)

Common.h

Contains types(u8, u16, u32, u64, s8, s16, s32, s64, bool)

• memcpy(u8 *src, u8 *dest, u32 bytes) - copies u8 data from one memory location to another

zlib

Basic open source zlib library written by Apple inc.

string/string.h

Basic string library realized by me specially for madeinhellOS

• string_init_char_size(struct string* s, char* data, unsigned int size) - initializes string with char* data and size
• string_init_char(struct string* s, char* data) - initializes string with char* data(it must contain \0 at the end of the string)
• string_init(struct string* s) - initializes string with empty data
• string_print(struct string s) - prints string
• string_println(struct string s) - prints string with newline
• string_append_char(struct string* s, char data) - appends char to string
• string_append_chardata(struct string* s, char* data, unsigned int size) - appends char* data to string
• string_append_string(struct string* s, struct string s2) - appends string to string
• string_at(struct string s, unsigned int index) - returns char at index
• string_at_string(struct string s, unsigned int index, unsigned int size) - returns string at index(like a substring)
• string_length(struct string s) - returns string length(it must contain \0 at the end of the string)
• string_length_char(char* data) - returns string length(it must contain \0 at the end of the string)
• string_copy(struct string s1, struct string* s2) - copies string s1 to string s2
• string_delete(struct string* xs) - deletes string(deallocate memory from data, and set data, size, capacity to NULL)
• string_substr(s, start, size) - returns string from start to start+size
• string_substr1(s, start, end) - returns string from start to end

file

Contains file creation, file opening, file reading, file writing, file closing, and file deleting functions in file.h also contains assembler realizations for it

• fopen(char* filename) - opens file
• fwrite(int descriptor, char* data, size_t size) - writes data to file
• fread(int descriptor, char* buffer, size_t size) - reads data from file
• fclose(int descriptor) - closes file
• CreateFile(file* f) - creates file
• CreateFile1(file* f) - creates file(without deleting old file if exists)
• mkdir(char* folder) - creates folder
• rmdir(char* folder) - deletes folder
• SetCurFolder(char* folder) - sets current folder
• GetCurFolder(char* folder) - gets current folder
• file - type using to work with files

kernel/memory.h

• get_memory_size() - returns total memory size in KiB
• struct ptr - default type(for madeinhellOS) for memory allocation(contains pointer to start of allocated memory and size of allocated memory in bytes)
• malloc(unsigned long long size) - allocates memory and returns struct ptr
• free(struct ptr* ptr) - deallocates memory
• realloc(struct ptr* ptr, unsigned long long size) - reallocates memory Please note that size of allocated memory is always multiple of default_memory_block_size(4096 bytes now)

drivers/lowlevel_io.h

• port_byte_in(unsigned short port) - reads byte from port
• port_byte_out(unsigned short port, unsigned char data) - writes byte to port
• port_word_in(unsigned short port) - reads word(2 bytes) from port
• port_word_out(unsigned short port, unsigned short data) - writes word(2 bytes) to port

drivers/screen.h

• kprint(u8 *str) - prints string to screen(string must contain \0 at the end of the string)
• putchar(u8 character, u8 attribute_byte) - prints character to screen
• clear_screen() - clears screen
• write(u8 character, u8 attribute_byte, u16 offset) - prints character to screen with vga offset
• scroll_line() - scrolls screen line
• get_cursor() - returns cursor position
• set_cursor(u16 pos) - sets cursor position

drivers/keyboard.h

• get_key() - returns scancode of pressed key Also it contains all scancodes of keyboard in format KR_ for released keys and KP_ for pressed keys Example: KR_RIGHT_CTRL for released right control key and KP_RIGHT_CTRL for pressed right control key

drivers/input.h

• input() - returns string with pressed keys(befor enter without \n)