void monitor_process_key_press(uint8_t scancode)
{
struct terminal_position p = terminal_position();
uint8_t code = scancodes[scancode];
const char *command = NULL;
terminal_set_position(command_line_position);
if (scancode == KEY_BACKSPACE &&
command_line_position.column > COMMAND_LINE_PROMPT_LEN) {
command_line_position.column--;
terminal_set_position(command_line_position);
terminal_put(' ');
} else if (code == '\n') {
command = terminal_read_command(COMMAND_LINE_PROMPT_LEN);
assert(command != NULL);
terminal_clear_line();
} else if (code != 0) {
if (command_line_position.column < TERMINAL_COL_COUNT-1) {
command_line_position.column++;
terminal_put(code);
}
}
if (command != NULL) {
// redraw command line prompt
terminal_printf("%s", COMMAND_LINE_PROMPT);
command_line_position = terminal_position();
}
terminal_set_position(p);
if (command != NULL)
monitor_process_command(command);
}
void scroll_up(void)
{
for(size_t index = 0; index < VGA_TERMINAL_WIDTH * (VGA_TERMINAL_HEIGHT - 1) ; index++)
terminal_buffer[index] = terminal_buffer[index + VGA_TERMINAL_WIDTH];
terminal_clear_line(VGA_TERMINAL_HEIGHT - 1);
}
