source: rtems/bsps/nios2/nios2_iss/start/crtnn.S @ fbcd7c8f

5
Last change on this file since fbcd7c8f was fbcd7c8f, checked in by Sebastian Huber <sebastian.huber@…>, on Apr 20, 2018 at 8:19:28 AM

bsps: Move start files to bsps

This patch is a part of the BSP source reorganization.

Update #3285.

  • Property mode set to 100644
File size: 995 bytes
Line 
1/*  NIOS2 crtn.asm fix
2 *
3 *  COPYRIGHT (c) 2005-2006 Kolja Waschk rtemsdev/ixo.de
4 *
5 *  The license and distribution terms for this file may be
6 *  found in the file LICENSE in this distribution or at
7 *  http://www.rtems.org/license/LICENSE.
8 */
9
10/* Can't use the original crtn.asm from Altera because it doesn't
11   restore the stack pointer correctly (in 5.1b73, the stack pointer
12   is further decreased by 48 instead of increased). This is named
13   differently (crtnn instead crtn) to make sure it can be picked up
14   using custom gcc specs instead of gcc's crtn. - kawk */
15
16        .section .init
17        ldw     ra, 44(sp)
18        ldw     r23, 40(sp)
19        ldw     r22, 36(sp)
20        ldw     r21, 32(sp)
21        ldw     r20, 28(sp)
22        ldw     r19, 24(sp)
23        ldw     r18, 20(sp)
24        ldw     r17, 16(sp)
25        ldw     r16, 12(sp)
26        ldw     fp, 8(sp)
27        addi sp, sp, 48
28        ret
29       
30        .section .fini
31        ldw     ra, 44(sp)
32        ldw     r23, 40(sp)
33        ldw     r22, 36(sp)
34        ldw     r21, 32(sp)
35        ldw     r20, 28(sp)
36        ldw     r19, 24(sp)
37        ldw     r18, 20(sp)
38        ldw     r17, 16(sp)
39        ldw     r16, 12(sp)
40        ldw     fp, 8(sp)
41        addi sp, sp, 48
42        ret
43       
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