register model 在uvm的验证环境里是必不可缺少的一部分，涉及到对dut的寄存器的操作都需要通过register model。register model不同与uvm 其它component，它比较独立。register model里涉及到了一些概念，uvm_filed,uvm_reg,uvm_block。这三者具有层层包含的关系，最终生成一个完整的register_model。如果同过手动的方式去写register_model,对于变动比较的小register_model简单改下就行，但是对于变化比较大的register model就会花费大量时间，考虑到register model的生成是具有一定规律的，因此可以考虑通过python去生成，通过制定一些规则给DE，让DE按规填写excel 表格，然后DV可以根据表格可以生成需要的registermodel
from openpyxl import load_workbook
import sys
import numpy as np
import functools
def reg(reg):#例化reg 内部的filed，filed需要指定各个parameter
reg_name=reg['reg_name']
filed_name=reg['filed_name']
size=reg['size']
filed_size=reg['filed_size']
filed_offset=reg['filed_offset']
reset_value=reg['reset_value']
access=reg['access']
address=reg['address']
print("class "+str( reg_name )+" extend uvm_reg:")
print('trand uvm_reg_filed '+str(filed_name)+";")
for reg_filed in reg_model:
if reg_filed['reg_name']==None:#判断是否具有多filed
if(reg_filed['address']==address):#用excel里的addr判断是否属于同一个寄存器的filed
filed1_name=reg_filed['filed_name']
print('trand uvm_reg_filed '+str(filed1_name)+";")#filed
print('tvirtual function void build();')#build 函数用来配置filed，同时进行例化
print('tt'+str(filed_name)+'=uvm_reg_filed::type_id::create("'+str(filed_name)+'");')
for reg_filed in reg_model:
if reg_filed['reg_name']==None:#判断是否具有多个filed
if(reg_filed['address']==address):#判断是否属于同一个寄存器
filed1_name=reg_filed['filed_name']
print('tt'+str(filed1_name)+'=uvm_reg_filed::type_id::create("'+str(filed1_name)+'");')
if reg['multi_filed']==0:
print('tt'+str(filed_name)+'.configure(this,'+str(filed_size)+','+str(filed_offset)+',"'+str(access)+'");')#str使用的时候必须是放在字符串中间
print('tendfunction')
print('tfunction new(input string name='"unamed "+str(reg_name)+" ")#加空格
print('ttspuper.new(name,'+str(size)+',UVM_NO_COVERAGE);')
print('tendfunction')
print("endclassn")
def block(block):#block的例化
block_name=block['block_name']
print('class '+str(block_name)+' extends uvm_reg_block;')
for reg in reg_model:#遍历block内部的 reg，
if(reg['reg_name']):
print('trand '+str(reg['reg_name'])+' '+str(reg['reg_name'])+'_inst;')
print('tfunction void build();')
print('ttdefault_map=create_map("default_map",0,4,UVM_LITTLE_ENDIAN)')
for reg in reg_model:
if reg['reg_name']:
print('tt'+str(reg['reg_name'])+'_inst='+str(reg['reg_name'])+'::type_id:create("'+str(reg['reg_name'])+'_inst", ,get_full_name());')
print('tt'+str(reg['reg_name'])+'_inst.configure(this,null,"'+str(reg['reg_name'])+'_inst");')
print('tt'+str(reg['reg_name'])+'_inst.build();')
print('ttdefault_map.add_reg('+str(reg['reg_name'])+'_inst,'+str(reg['address'])+',"'+str(reg['access'])+');n')
print('tendfunctionn')
print('t`uvm_object_utils('+str(block_name)+')')
print('tfunction new(input string name="unamed_'+str(block_name)+'");')
print('ttsuper.new(name,UVM_NO_COVERAGE);')
print('tendfunction')
print('endclassn')
#def search:
if __name__=="__main__":
book = load_workbook(r'C:UserschenzhongpingDesktopreg_model.xlsx')#需要加r'否则报错
sheet=book.active
#获得所有行
rows=sheet.rows
#print(rows)
row_count =sheet.max_row
columns=sheet.columns
#获得第一行所有数据
headers=[cell.value for cell in next(rows)]
print(headers)
reg_model = []
template= []
result={}
for row in rows:
data = {}
for title,cell in zip(headers,row):#生成字典，获得excel里的所有数据
data[title] = cell.value
# reg(data)#生成reg
reg_model.append(data)
# reg_tmp={}#用来保存所有的reg生成新的字典
reg_data=[]
print('Hello world nn')
#字典去重
# for reg_val in reg_model:
# reg_tmp={}#需要在for循环里声明否则append的都是最后一个字典
# reg_tmp['reg_name']=reg_val['reg_name']
# reg_data.append(reg_tmp)
# reg_unique=functools.reduce(lambda x,y:y in x and x or x +[y],reg_data,[])
# print(reg_data)
#print(reg_unique)
for block_valid in reg_model:
if(block_valid['block_name']):#这个python目前只考虑单block
block(block_valid)#生成block
if(block_valid['reg_name']):
reg(block_valid)#如果for 循环有个变量reg，那么这里会报错 dict' object is not callable
else:
if block_valid['reg_name']:
reg(block_valid)
