RIOT-OS/RIOT
RIOT-OS/RIOT
1
0
Fork 0
mirror of https://github.com/RIOT-OS/RIOT.git synced 2024-12-29 04:50:03 +01:00
Code Releases Activity

Merge pull request #8744 from Josar/atmega_stackPointer

Browse Source 
atmega: add last instruction print
This commit is contained in:
Francisco Acosta 2018-03-06 16:16:07 +01:00 committed by GitHub
commit c922119fe4
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 19 additions and 1 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

20
cpu/atmega_common/include/cpu.h
View File

@ -1,6 +1,7 @@
/*
* Copyright (C) 2015 Kaspar Schleiser <kaspar@schleiser.de>
* 2014 Freie Universität Berlin, Hinnerk van Bruinehsen
* 2018 RWTH Aachen, Josua Arndt <jarndt@ias.rwth-aachen.de>
*
* This file is subject to the terms and conditions of the GNU Lesser
* General Public License v2.1. See the file LICENSE in the top level
@ -22,6 +23,8 @@
* @author Hauke Petersen <hauke.petersen@fu-berlin.de>
* @author Hinnerk van Bruinehsen <h.v.bruinehsen@fu-berlin.de>
* @author Kaspar Schleiser <kaspar@schleiser.de>
* @author Josua Arndt <jarndt@ias.rwth-aachen.de>
*
*/
#ifndef CPU_H
@ -76,7 +79,22 @@ void cpu_init(void);
*/
static inline void cpu_print_last_instruction(void)
{
puts("n/a");
uint8_t hi;
uint8_t lo;
uint16_t ptr;
__asm__ volatile( "in r0, __SP_H__; \n\t"
"mov %0, r0 \n\t"
: "=g"(hi)
:
: "r0");
__asm__ volatile( "in r0, __SP_L__; \n\t"
"mov %0, r0 \n\t"
: "=g"(lo)
:
: "r0");
ptr = hi<<8 | lo;
printf("Stack Pointer: 0x%04x\n", ptr);
}
#ifdef __cplusplus