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Download H8S, H8/300 Series C/C++ Compiler Package Application Note
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Section 4 HEW Optimize: Specifies optimization items. Dialog Menu Subcommand Function All Optimize Enables all optimization items Speed Optimize∆speed Performs optimization in speed Safe Optimize∆safe Performs safe optimization Custom Optimize∆ Enables optimization item selection Unify strings String_unify Unifies constant or string literal Eliminate dead code Symbol_delete Deletes unreferenced symbols Use short addressing Variable_access Uses short-absolute addressing mode Reallocate registers Register Reallocates registers Eliminate same code Same_code Eliminates same codes Eliminated size: Samesize Specifies the object size for same code elimination Use indirect call/jump Function_call Uses indirect addressing mode Optimize branches Branch Optimizes branch instructions Nooptimize Disables optimization Subcommand Function information Displays optimized function name None Output information Check Box √ _ Displays no optimized function name Generate optimize list Dialog Menu Subcommand Function - Mlist [∆file name] Outputs optimization information list Symbol show∆symbol Outputs symbol optimization information Reference show∆reference Outputs symbol reference count Dialog Menu Subcommand Function Elimination of dead code Symbol_forbid Specifies the name of variable or function in which unreferenced symbol eliminating optimization is disabled Elimination of same code Samecode_forbid Specifies the name of the function in which same code eliminating optimization is disabled Use of short addressing to Variable_forbid Specifies the name of the variable in which optimization using short-absolute addressing mode is disabled Use of indirect call/jump to Function_forbid Specifies the name of the function in which optimization using indirect addressing mode is disabled Memory allocation in Absolute_forbid Specifies the address area to which address allocation is not performed Contents: Forbid item: Rev.3.00 2005.09.12 4-19 REJ05B0464-0300
