text: #ifndef CHIP8STACK_H
  #define CHIP8STACK_H
  
  #include "config.h"
  
  struct chip8;
  struct chip8_stack
  {
      unsigned short stack[CHIP8_TOTAL_STACK_DEPTH];
  };
  
  void chip8_stack_push(struct chip8 *chip8, unsigned short value);
  unsigned short chip8_stack_pop(struct chip8 *chip8);
  
  #endif