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
fn write do
    SYS_write syscall3
end

// 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
fn read do
    SYS_read syscall3
end


// 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
fn puts do
    STDOUT write drop
end

// 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
fn eputs do
    STDOUT write drop
end

// TODO: make putc and eputc after we make local mem

// Exit the program with exit_code
// args: [exit_code]
// @arg exit_code: Int
// @ret NULL/NEVER
fn exit do
    SYS_exit syscall1 drop
end