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Hi, everybody, My target board has not v850 but v850e processor and I am compiling test code(mul.c) with cross GCC for target=v850-elf. My question are: 1) Does GNU 2.95.2 support v850e? I configured GCC with options below: configure --target=v850-elf --prefix=/proj/tools --with-gnu-as --with-gnu-ld 2) Why does not GCC generate muliply code sets? GCC generates __mulsi3 sub routine call. 3) Please show me how to generate multiply code sets for v850e! I atatched information for this issue. Thank you, Yoshinori Unno -------------- o complie option v850-elf/bin/gcc -c -S -Wall -Wno-format -Wimplicit -Wparentheses \ -Wunused -fconserve-space -fno-exceptions -fno-rtti -O2 \ -fno-expensive-optimizations -mno-pro \ log-function -gstabs3 -ffixed-r20 -ffixed-r21 -fpack-struct \ -Wa,-mv850e mul.c -------------- o source list(mul.c) int func(int b) { return~b; } int main() { int a= 3; int b= 4; int c; c= a * func(b); return c; } -------------- o assembly list .file "mul.c" .section .text .Ltext0: .align 1 .global _func .type _func,@function _func: .LM1: .LM2: not r6,r10 jmp [r31] .Lfe1: .size _func,.Lfe1-_func .global ___mulsi3 .align 1 .stabs "main:F(0,1)",36,0,0,_main .global _main .type _main,@function _main: .LM3: .LM4: .LBB2: .LM5: addi -20,sp,sp st.w r31,16[sp] mov 4,r6 jarl _func,r31 mov 3,r6 mov r10,r7 jarl ___mulsi3,r31 .LM6: ld.w 16[sp],r31 addi 20,sp,sp jmp [r31] .LM7: .LBE2: .Lfe2: .size _main,.Lfe2-_main .text Letext: .ident "GCC: (GNU) 2.95.2 19991024 (release)" ------ Want more information? See the CrossGCC FAQ, http://www.objsw.com/CrossGCC/ Want to unsubscribe? Send a note to crossgcc-unsubscribe@sources.redhat.com
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