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Download TASKING VX-toolset for ARM User Guide
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Table of Contents 1. C Language .................................................................................................................. 1 1.1. Data Types ......................................................................................................... 1 1.2. Changing the Alignment: __unaligned, __packed__ and __align() ................................. 2 1.3. Placing an Object at an Absolute Address: __at() ....................................................... 3 1.4. Accessing Hardware from C .................................................................................. 4 1.5. Using Assembly in the C Source: __asm() ................................................................ 5 1.6. Attributes ......................................................................................................... 11 1.7. Pragmas to Control the Compiler .......................................................................... 14 1.8. Predefined Preprocessor Macros .......................................................................... 19 1.9. Switch Statement ............................................................................................... 21 1.10. Functions ....................................................................................................... 22 1.10.1. Calling Convention ................................................................................. 22 1.10.2. Inlining Functions: inline .......................................................................... 23 1.10.3. Interrupt Functions / Exception Handlers .................................................... 25 1.10.4. Intrinsic Functions ................................................................................. 27 2. C++ Language ............................................................................................................ 35 2.1. C++ Language Extension Keywords ...................................................................... 35 2.2. C++ Dialect Accepted ......................................................................................... 35 2.2.1. Standard Language Features Accepted ....................................................... 35 2.2.2. C++0x Language Features Accepted .......................................................... 38 2.2.3. Anachronisms Accepted ........................................................................... 42 2.2.4. Extensions Accepted in Normal C++ Mode ................................................... 43 2.3. GNU Extensions ................................................................................................ 45 2.4. Namespace Support .......................................................................................... 59 2.5. Template Instantiation ......................................................................................... 61 2.5.1. Automatic Instantiation ............................................................................. 62 2.5.2. Instantiation Modes ................................................................................. 63 2.5.3. Instantiation #pragma Directives ................................................................. 64 2.5.4. Implicit Inclusion ..................................................................................... 65 2.5.5. Exported Templates ................................................................................. 66 2.6. Inlining Functions ............................................................................................... 69 2.7. Extern Inline Functions ....................................................................................... 70 2.8. Pragmas to Control the C++ Compiler .................................................................... 70 2.9. Predefined Macros ............................................................................................. 71 2.10. Precompiled Headers ....................................................................................... 75 2.10.1. Automatic Precompiled Header Processing ................................................. 75 2.10.2. Manual Precompiled Header Processing .................................................... 78 2.10.3. Other Ways to Control Precompiled Headers ............................................... 78 2.10.4. Performance Issues ............................................................................... 79 3. Assembly Language ..................................................................................................... 81 3.1. Assembly Syntax ............................................................................................... 81 3.2. Assembler Significant Characters .......................................................................... 82 3.3. Operands of an Assembly Instruction ..................................................................... 83 3.4. Symbol Names .................................................................................................. 83 3.4.1. Predefined Preprocessor Symbols .............................................................. 84 3.5. Registers ......................................................................................................... 85 3.6. Assembly Expressions ........................................................................................ 85 3.6.1. Numeric Constants .................................................................................. 86 iii
