On 3/17/20 8:06 AM, LIU Zhiwei wrote: > Vector extension is default off. The only way to use vector extension is > 1. use cpu rv32 or rv64 > 2. turn on it by command line > "-cpu rv64,x-v=true,vlen=128,elen=64,vext_spec=v0.7.1". > > vlen is the vector register length, default value is 128 bit. > elen is the max operator size in bits, default value is 64 bit. > vext_spec is the vector specification version, default value is v0.7.1. > These properties can be specified with other values. > > Signed-off-by: LIU Zhiwei <[email protected]> > --- > target/riscv/cpu.c | 44 +++++++++++++++++++++++++++++++++++++++++++- > target/riscv/cpu.h | 2 ++ > 2 files changed, 45 insertions(+), 1 deletion(-)
Reviewed-by: Richard Henderson <[email protected]> r~
