SH_RS1 - Linux

Symbol: SH_RS1

arch/riscv/include/asm/insn.h

#define GET_RS1(insn, regs) (*REG_PTR(insn, SH_RS1, regs))

arch/riscv/kvm/vcpu_insn.c

unsigned int rs1_num = (insn >> SH_RS1) & MASK_RX;