diff options
Diffstat (limited to 'libgloss/rs6000/simulator.S')
| -rw-r--r-- | libgloss/rs6000/simulator.S | 79 |
1 files changed, 79 insertions, 0 deletions
diff --git a/libgloss/rs6000/simulator.S b/libgloss/rs6000/simulator.S new file mode 100644 index 000000000..1e925e02c --- /dev/null +++ b/libgloss/rs6000/simulator.S @@ -0,0 +1,79 @@ +/* + * simulator.S -- PowerPC simulator system calls. + * + * Copyright (c) 1995 Cygnus Support + * + * The authors hereby grant permission to use, copy, modify, distribute, + * and license this software and its documentation for any purpose, provided + * that existing copyright notices are retained in all copies and that this + * notice is included verbatim in any distributions. No written agreement, + * license, or royalty fee is required for any of the authorized uses. + * Modifications to this software may be copyrighted by their authors + * and need not follow the licensing terms described here, provided that + * the new terms are clearly indicated on the first page of each file where + * they apply. + */ + +#include "ppc-asm.h" + +FUNC_START(_exit) + li r0, 1 + sc + +/* + * Insure that the debugger tells the client that the PC is in _exit, + * not whatever function happens to follow this function. + */ + +0: trap + b 0b /* we never should return, but... */ + +FUNC_END(_exit) + +FUNC_START(read) + li r0,3 + sc + bns+ 0f + b FUNC_NAME(_cerror) +0: blr +FUNC_END(read) + +FUNC_START(write) + li r0,4 + sc + bns+ 0f + b FUNC_NAME(_cerror) +0: blr +FUNC_END(write) + +FUNC_START(open) + li r0,5 + sc + bns+ 0f + b FUNC_NAME(_cerror) +0: blr +FUNC_END(open) + +FUNC_START(close) + li r0,6 + sc + bns+ 0f + b FUNC_NAME(_cerror) +0: blr +FUNC_END(close) + +FUNC_START(brk) + li r0,17 + sc + bns+ 0f + b FUNC_NAME(_cerror) +0: blr +FUNC_END(brk) + +FUNC_START(lseek) + li r0,199 + sc + bns+ 0f + b FUNC_NAME(_cerror) +0: blr +FUNC_END(lseek) |