On 11/15/13, 5:26 PM, Michael Weise wrote: > Hi, > > yesterday I've been facing a strange problem with some inline asm > code (see below), emitting errors like these: > (gcc 4.7.3, targetting m68k-elf, Windows 7/64, msys): > [snip] > > asm volatile ( > " move.l %[in1],%%a0 \n" // asm code > " move.l %[in2],%%A1 \n" > " trap #8 \n" > " move.b %%D0,%[out1]\n" > " move.b %%d1,%[out2]\n" > :[out1] "=m" (*pc1), // output > [out2] "=m" (*pc2) > :[in1] "r" (cmdadr), // input > [in2] "r" (DUMRadr) > :"%a0","%A1","%d0","%D1", // clobber list > "memory","%CC" > ); > > Results in: > rs232_2.c:2433:2: error: unknown register name '%CC' in 'asm' > rs232_2.c:2433:2: error: unknown register name '%D1' in 'asm' > rs232_2.c:2433:2: error: unknown register name '%A1' in 'asm' > Hi, Michael, If you build m68k-elf on your own, you can implement ADDITIONAL_REGISTER_NAMES in gcc/config/m68k/m68k.h to define alias register names with upper case. This can help gcc recognize them. :) Best regards, jasonwucj
