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author | Joel Sherrill <joel.sherrill@OARcorp.com> | 1995-05-11 17:39:37 +0000 |
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committer | Joel Sherrill <joel.sherrill@OARcorp.com> | 1995-05-11 17:39:37 +0000 |
commit | ac7d5ef06a6d6e8d84abbd1f0b82162725f98326 (patch) | |
tree | 9304cf759a73f2a1c6fd3191948f00e870af3787 /c/src/exec/score/cpu/m68k/rtems.s | |
download | rtems-ac7d5ef06a6d6e8d84abbd1f0b82162725f98326.tar.bz2 |
Initial revision
Diffstat (limited to 'c/src/exec/score/cpu/m68k/rtems.s')
-rw-r--r-- | c/src/exec/score/cpu/m68k/rtems.s | 46 |
1 files changed, 46 insertions, 0 deletions
diff --git a/c/src/exec/score/cpu/m68k/rtems.s b/c/src/exec/score/cpu/m68k/rtems.s new file mode 100644 index 0000000000..faae97e487 --- /dev/null +++ b/c/src/exec/score/cpu/m68k/rtems.s @@ -0,0 +1,46 @@ +/* rtems.s + * + * This file contains the single entry point code for + * the m68k implementation of RTEMS. + * + * COPYRIGHT (c) 1989, 1990, 1991, 1992, 1993, 1994. + * On-Line Applications Research Corporation (OAR). + * All rights assigned to U.S. Government, 1994. + * + * This material may be reproduced by or for the U.S. Government pursuant + * to the copyright license under the clause at DFARS 252.227-7013. This + * notice must appear in all copies of this file and its derivatives. + * + * $Id$ + */ + + +#include <asm.h> + +/* + * There seems to be no reason to have two versions of this. + * The following version should work across the entire family. + * The worst assumption is that gcc will put entry in a scratch + * register and not screw up the stack. + * + * NOTE: This is a 68020 version: + * + * jmpl @(%%d0:l:4)@(__Entry_points) + */ + + EXTERN (_Entry_points) + + BEGIN_CODE + + .align 4 + .global SYM (RTEMS) + +SYM (RTEMS): + moveal SYM (_Entry_points), a0 + lsll #2, d0 + addal d0, a0 + moveal @(a0),a0 + jmpl @(a0) + + END_CODE +END |