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Download CodeWarrior Development Studio for Microcontrollers
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Build Properties for Qorivva Table 3-171. Tool Settings - PowerPC Compiler > Processor (continued) Option Description Inlined Assembler is Volatile Check to have the compiler treat all asm blocks (including inline asm blocks) as if the volatile keyword was present. This prevents the asm block from being optimized. You can use the .nonvolatile directive to selectively enable optimization on asm blocks, as required. Instruction Scheduling Check to optimize the scheduling of instructions for the specific processor you are targeting (determined by which processor is selected in the Processor drop-down list.) Enabling the Instruction Scheduling checkbox can make source-level debugging more difficult because the source code may not correspond to the execution order of the underlying instructions. It is sometimes helpful to clear this checkbox when debugging, and then check it again once you have finished the bulk of your debugging. Peephole Optimization Check to have the compiler perform peephole optimizations. Peephole optimizations are small local optimizations that can reduce several instructions into one target instruction, eliminate some compare instructions, and improve branch sequences. This checkbox corresponds to #pragma peephole. Profiler Information Check to generate special object code during runtime to collect information for a code profiler. This checkbox corresponds to #pragma profile. Generate ISEL Instructions (e500/Zen) Check to have the compiler to emit ISEL instructions. This instruction can improve performance by reducing conditional branching. Translate PPC Asm to VLE Asm (Zen) Check to have the compiler to translate the classic PPC inline assembly instructions to the VLE inline assembler for the Zen processor. 3.7.5.6 PowerPC Compiler > C/C++ Language Use this panel direct the PowerPC compiler to apply specific processing modes to the language source code. You can compile source files with just one collection at a time. To compile source files with multiple collections, you must compile the source code sequentially. After each compile iteration change the collection of settings that the PowerPC compiler uses. CodeWarrior Development Studio for Microcontrollers V10.x Targeting Manual, Rev. 10.6, 03/2014 304 Freescale Semiconductor, Inc.
