1/* 2 * Copyright (c) 1992, 1993 3 * The Regents of the University of California. All rights reserved. 4 * 5 * This software was developed by the Computer Systems Engineering group 6 * at Lawrence Berkeley Laboratory under DARPA contract BG 91-66 and 7 * contributed to Berkeley. 8 * 9 * %sccs.include.redist.c% 10 * 11 * from: $Header: saveregs.s,v 1.1 91/07/06 17:22:33 torek Exp $ 12 */ 13 14/* 15 * Save register arguments in caller's `arg dump' area, so that 16 * stdarg functions work. 17 * 18 * This really should be done with a pointer to the arg dump area; 19 * our caller should allocate that area, not our caller's caller. 20 * But then, they did not let me invent the calling sequence.... 21 * 22 * We assume the caller has executed a `save' instruction. 23 */ 24#include "DEFS.h" 25 26ENTRY(__builtin_saveregs) 27 st %i0, [%fp + 0x44] ! fr->fr_argd[0] 28 st %i1, [%fp + 0x48] ! fr->fr_argd[1] 29 st %i2, [%fp + 0x4c] ! fr->fr_argd[2] 30 st %i3, [%fp + 0x50] ! fr->fr_argd[3] 31 st %i4, [%fp + 0x54] ! fr->fr_argd[4] 32 retl 33 st %i5, [%fp + 0x58] ! fr->fr_argd[5] 34