mclangc/include/io.mcl

// Write to a file descriptor using the SYS_write syscall
// args: [buff_size, buff_ptr, fd]
// @arg buff_size: Int - number of bytes to write
// @arg buff_ptr: Ptr - pointer to the buffer to write
// @arg fd: Int - file descriptor
// @ret Int
inline fn fwrite with int ptr int returns int then
    SYS_write syscall3
done

// Write to a file descriptor using the SYS_write syscall
// args: [buff_size, buff_ptr, fd]
// @arg buff_size: Int - number of bytes to write
// @arg buff_ptr: Ptr - pointer to the buffer to write
// @arg fd: Int - file descriptor
// @ret Int
inline fn fread with int ptr int returns int then
    SYS_read syscall3
done


// Write to a file descriptor using the SYS_write syscall
// args: [buff_ptr, flags, mode]
// @arg buff_ptr: Ptr - File to open
// @arg flags: Int - Flags
// @arg mode: Int - Mode
// @ret Int - Fd
inline fn fopen with int ptr int returns int then
    SYS_open syscall3
done


// Print a string to STDOUT
// args: [str_size, str_ptr]
// @arg buff_size: Int - number of bytes to write
// @arg buff_ptr: Ptr - pointer to the buffer to write
// @ret NULL
inline fn puts with int ptr returns void then
    STDOUT fwrite drop
done

// Print a string to STDERR
// args: [str_size, str_ptr]
// @arg buff_size: Int - number of bytes to write
// @arg buff_ptr: Ptr - pointer to the buffer to write
// @ret NULL
inline fn eputs with int ptr returns void then
    STDOUT fwrite drop
done

// TODO: make putc, eputc, putd, and eputd  after we make local mem

// Exit the program with exit_code
// args: [exit_code]
// @arg exit_code: Int
// @ret NULL/NEVER
inline fn exit with int returns void then
    SYS_exit syscall1 drop
done