二进制宏
使用51单片机时二进制定义
// 0x00
#define b0000_0000 0x00
#define b0000_0001 0x01
#define b0000_0010 0x02
#define b0000_0011 0x03
#define b0000_0100 0x04
#define b0000_0101 0x05
#define b0000_0110 0x06
#define b0000_0111 0x07
#define b0000_1000 0x08
#define b0000_1001 0x09
#define b0000_1010 0x0A
#define b0000_1011 0x0B
#define b0000_1100 0x0C
#define b0000_1101 0x0D
#define b0000_1110 0x0E
#define b0000_1111 0x0F
// 0x10
#define b0001_0000 0x10
#define b0001_0001 0x11
#define b0001_0010 0x12
#define b0001_0011 0x13
#define b0001_0100 0x14
#define b0001_0101 0x15
#define b0001_0110 0x16
#define b0001_0111 0x17
#define b0001_1000 0x18
#define b0001_1001 0x19
#define b0001_1010 0x1A
#define b0001_1011 0x1B
#define b0001_1100 0x1C
#define b0001_1101 0x1D
#define b0001_1110 0x1E
#define b0001_1111 0x1F
// 0x20
#define b0010_0000 0x20
#define b0010_0001 0x21
#define b0010_0010 0x22
#define b0010_0011 0x23
#define b0010_0100 0x24
#define b0010_0101 0x25
#define b0010_0110 0x26
#define b0010_0111 0x27
#define b0010_1000 0x28
#define b0010_1001 0x29
#define b0010_1010 0x2A
#define b0010_1011 0x2B
#define b0010_1100 0x2C
#define b0010_1101 0x2D
#define b0010_1110 0x2E
#define b0010_1111 0x2F
// 0x30
#define b0011_0000 0x30
#define b0011_0001 0x31
#define b0011_0010