Blog of chms
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SDB

Posted on Edited on In ,

si [N]

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{ "si", "Step in", cmd_si}
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static int cmd_si(char *args){
  if(args != NULL){
    cpu_exec(atoi(args));
  }else{
    cpu_exec(1);
  }
  
  return 0;
}

info

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{ "info", "Get information of regs or watchpoints", cmd_info}
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static int cmd_info(char *args){
  if(*args == 'r'){
    isa_reg_display();
  }else if(*args == 'w'){

  }
  
  return 0;
}

x [N] [EXPR]

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{ "x", "Scan the memory", cmd_x}

规定 EXPR 只能是十六进制数

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static int cmd_x(char *args){
  if(args != NULL){
    // get the string of instruction number and expression
    char *inst_num_in = strtok(args, " ");
    char *expr_in = args + strlen(args) + 1;
    // get the start address of scanning
    paddr_t addr_start_scan;
    sscanf(expr_in,"%x",&addr_start_scan);
    // output
    printf("inst_num_in: %d, addr_start: 0x%08x\n", atoi(inst_num_in), addr_start_scan);
    for(u_char i = 0; i <= (atoi(inst_num_in)-1); i++){
      printf("%08lx\n", paddr_read(addr_start_scan + i*4, 4));
    }
  }
  
  return 0;
}

EXPR 正则表达式

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