 C166 User's Guide | |
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C166 User's Guide
C166 Introduction Compiling Programs Language Extensions
Keywords Memory Models Tiny Model Small Model Medium Model Compact Model Large Model HCompact Model HLarge Model XLarge Model Memory Types near far bdata ebdata idata sdata huge xhuge Memory Type Comparison Pointers with Memory Types Implicit Memory Types Type Qualifiers const volatile Data Types Special Function Registers sfr Types sbit Types bit Types Bit-Addressable Objects Function Declarations Return Values Register Bank Register Mask Interrupt Functions Fast Interrupts Cached Vectors Fast Register Banks Inline Functions Real-Time Function Tasks Inline Assembly Traditional Inline Assembly Extended Inline Assembly Register Use Use in Macro Definitions Preprocessor Advanced Programming Error Messages Library Reference AppendixData Types
The C166 Compiler provides several basic data types you may use in your C programs. The compiler supports the standard C data types as well as several data types that are unique to the C16x/ST10/XC16x platform.
| Data Type | Bits | Bytes | Value Range |
|---|---|---|---|
| bit | 1 | 0 or 1 | |
| signed char | 8 | 1 | -128 to +127 |
| unsigned char | 8 | 1 | 0 to 255 |
| enum | 8 / 16 | 1 or 2 | -128 to +127 or -32768 to +32767 |
| signed short | 16 | 2 | -32768 to +32767 |
| unsigned short | 16 | 2 | 0 to 65535 |
| signed int | 16 | 2 | -32768 to +32767 |
| unsigned int | 16 | 2 | 0 to 65535 |
| signed long | 32 | 4 | -2147483648 to +2147483647 |
| unsigned long | 32 | 4 | 0 to 4294967295 |
| float | 32 | 4 | ±1.175494E-38 to ±3.402823E+38 |
| double | 64 | 8 | ±1.7E-308 to ±1.7E+308 |
| sbit | 1 | 0 or 1 | |
| sfr | 16 | 2 | 0 to 65535 |
Note
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