Hello All, I build the tool chain for v850 with following command $ ../../gcc_source/gcc-4.3.0/configure --target=v850-elf -prefix=/tools --exec- prefix=/tools/Gnu-i686-V850 --with-gnu-as --with-gnu-ld --with-newlib -v 2>&1 | tee configure.out $ make -w all-gcc install-gcc LANGUAGE="c c++" 2>&1 | tee make.out and then try to compile test file as follows $ v850-elf-gcc -Wall test.c -o test test.c: In function 'main': test.c:16: warning: 'return' with no value, in function returning non-void /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s: Assembler messages: /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:5: Warning: .type pseudo- op used outside of .def/.endef ignored. /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:5: Error: junk at end of line, first unrecognized character is `_' /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:7: Error: too many memory references for `add' /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:8: Error: no such instruc tion: `st.w r29,12[sp]' /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:9: Error: too many memory references for `mov' /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:10: Error: no such instru ction: `st.w r0,4[r29]' /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:11: Error: too many memor y references for `mov' /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:12: Error: no such instru ction: `st.w r10,8[r29]' /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:13: Error: no such instru ction: `ld.w 4[r29],r11' /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:14: Error: no such instru ction: `ld.w 8[r29],r10' /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:15: Error: too many memor y references for `cmp' /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:16: Error: no such instru ction: `be .L4' /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:17: Error: no such instru ction: `movea lo(20),r0,r10' /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:18: Error: no such instru ction: `st.w r10,8[r29]' /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:20: Error: too many memor y references for `mov' /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:21: Error: no such instru ction: `ld.w 12[sp],r29' /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:22: Error: no such instru ction: `addi 16,sp,sp' /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:23: Error: invalid char ' [' beginning operand 1 `[r31]' /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:24: Warning: .size pseudo -op used outside of .def/.endef ignored. /cygdrive/c/DOKUME~1/SECOND~1/LOKALE~1/Temp/ccI33e2q.s:24: Error: junk at end of line, first unrecognized character is `_' I didn't get any clue where to look for these error, can anyone provide some info with Thanks & Regards, Gowrisankar Loganathan _________________________________________________________________ The new Windows Live Messenger. You don’t want to miss this. http://www.microsoft.com/india/windows/windowslive/messenger.aspx