GCC库函数.pdfVIP

AVR-GCC GNU C for AVR $(AVR)f:\avrgcc $(AVR)RUN.BAT @echo off if NOT %AVR%!==! goto install rem set environment variables set AVR=f:\AVRGCC set CC=avr-gcc set PATH=.;f:\AVRGCC\bin;%path% doskey :install if %1!==! GOTO end rem install libc cd f:\AVRGCC\lib\avr-libcsrc rem first win32_make_dirs will make some errors(I dont know why?) make -f makefile-win32 win32_make_dirs make -f makefile-win32 make -f makefile-win32 install make -f makefile-win32 clean :end f: cd f:\AVRGCC mode con: lines=43 @echo off if NOT %AVR%!==! goto install rem set environment variables set AVR=f:\AVRGCC set CC=avr-gcc rem set PATH=.;f:\AVRGCC\bin;%path% doskey :install rem if %1!==! GOTO end rem install libc cd f:\AVRGCC\lib\avr-libcsrc rem first win32_make_dirs will make some errors(I dont know why?) f:\AVRGCC\bin\make -f makefile-win32 win32_make_dirs f:\AVRGCC\bin\make -f makefile-win32 f:\AVRGCC\bin\make -f makefile-win32 install f:\AVRGCC\bin\make -f makefile-win32 clean :end f: cd f:\AVRGCC mode con: lines=43 RUN.BAT rem if %1!==! GOTO end remremMAKE f:\AVRGCC\bin\ gcctest.zip 1 GCCTEST\INCLUDE MAKE1MAKE2 $(AVR)\ INCLUDE 2 MAKEFILE ( C ) MCUTRGSRCASRCINCLIB 3 $(AVR)\BIN MAKE.EXE MAKE 4 MAKE1MAKE2 MAKEFILE C GCC ASM PORTD asm(“in %0, %1” : “=r”(value) : “I”(PORTD) : ); 4 1“in %0, %1” 2“=r”(value) 3“I”(PORTD) 4Clobber asm(code : output operand list : input operand list : clobber list); %0 %1 %0 “=r”(value) %1 “I”(PORTD) C volatile asm volatile (“in %0, %1” : “=r”(value) : “I”(PORTD) : ); Clobber asm volatile(“cli” : :); C AVR-GCC __SREG__ SREG 0x3F __SP_H__ 0x3E __SP_L__ 0x3D __tmp_reg__ r0 __zero_