1 // Copyright 2015-2016 Espressif Systems (Shanghai) PTE LTD
2 //
3 // Licensed under the Apache License, Version 2.0 (the "License");
4 // you may not use this file except in compliance with the License.
5 // You may obtain a copy of the License at
6
7 // http://www.apache.org/licenses/LICENSE-2.0
8 //
9 // Unless required by applicable law or agreed to in writing, software
10 // distributed under the License is distributed on an "AS IS" BASIS,
11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
12 // See the License for the specific language governing permissions and
13 // limitations under the License.
14 #include <stdint.h>
15 #include "eri.h"
16
eri_read(int addr)17 uint32_t eri_read(int addr) {
18 uint32_t ret;
19 asm volatile (
20 "RER %0,%1"
21 :"=r"(ret):"r"(addr)
22 );
23 return ret;
24 }
25
eri_write(int addr,uint32_t data)26 void eri_write(int addr, uint32_t data) {
27 asm volatile (
28 "WER %0,%1"
29 ::"r"(data),"r"(addr)
30 );
31 }
32
