#include "nemu.h"

const char *regsl[] = {
  "$0", "ra", "sp", "gp", "tp", "t0", "t1", "t2",
  "s0", "s1", "a0", "a1", "a2", "a3", "a4", "a5",
  "a6", "a7", "s2", "s3", "s4", "s5", "s6", "s7",
  "s8", "s9", "s10", "s11", "t3", "t4", "t5", "t6"
};

void isa_reg_display() {
  for(int i=0;i<32;i++){
    printf("%s = 0x%08x\n", reg_name(i,3), reg_l(i));
  }
}

uint32_t isa_reg_str2val(const char *s, bool *success) {
  if(strcmp(s, "pc")==0){
    *success=true;
    return cpu.pc;
  }
  for(int i=0;i<32;i++){
    if(strcmp(s,regsl[i])==0){
      *success=true;
      return reg_l(i);
    }
  }
  *success=false;
  return 0;
}//比较字符串和寄存器名字，如果是该寄存器则返回这个寄存器的值