text: #ifndef OneWire_Direct_RegType_h
  #define OneWire_Direct_RegType_h
  
  #include <stdint.h>
  
  // Platform specific I/O register type
  
  #if defined(__AVR__)
  #define IO_REG_TYPE uint8_t
  
  #elif defined(__MK20DX128__) || defined(__MK20DX256__) || defined(__MK66FX1M0__) || defined(__MK64FX512__)
  #define IO_REG_TYPE uint8_t
  
  #elif defined(__MKL26Z64__)
  #define IO_REG_TYPE uint8_t
  
  #elif defined(__SAM3X8E__) || defined(__SAM3A8C__) || defined(__SAM3A4C__)
  #define IO_REG_TYPE uint32_t
  
  #elif defined(__PIC32MX__)
  #define IO_REG_TYPE uint32_t
  
  #elif defined(ARDUINO_ARCH_ESP8266)
  #define IO_REG_TYPE uint32_t
  
  #elif defined(ARDUINO_ARCH_ESP32)
  #define IO_REG_TYPE uint32_t
  #define IO_REG_MASK_ATTR
  
  #elif defined(__SAMD21G18A__)
  #define IO_REG_TYPE uint32_t
  
  #elif defined(RBL_NRF51822)
  #define IO_REG_TYPE uint32_t
  
  #elif defined(__arc__) /* Arduino101/Genuino101 specifics */
  #define IO_REG_TYPE uint32_t
  
  #elif defined(__riscv)
  #define IO_REG_TYPE uint32_t
  
  #else
  #define IO_REG_TYPE unsigned int
  
  #endif
  #endif
  