Data model

#Data model

不同種類的作業系統以及所支援的bit數 (64 or 32 bit), 會有不同的 data model

(https://en.wikipedia.org/wiki/64-bit_computing#64-bit_data_models)

64-bit 系統 -

• driver - 64 bit

• Application - 64/32

  • 當 32 bit Application 在傳值給 64 driver 時可能會 overflow

For the migration of 32-bit and 64-bit

• stdint.h

int8_t // int16_t

int32_t //32 bit signed integer

uint64_t // 64 bit unsigned integer