2 * Copyright 2000, International Business Machines Corporation and others.
5 * This software has been released under the terms of the IBM Public
6 * License. For details, see the LICENSE file in the top-level source
7 * directory or online at http://www.openafs.org/dl/license10.html
10 /* Sun 386i... I hope this does the right thing!!!
12 * Written by Derek Atkins <warlord@MIT.EDU>
13 * (debugging help by Chris Provenzano <proven@mit.edu>)
16 * "ojala que es correcto!"
36 * savecontext(f, area1, newsp)
37 * int (*f)(); struct savearea *area1; char *newsp;
40 /* offsets, to make my life easier! */
45 .globl _C_LABEL(PRE_Block)
46 .globl _C_LABEL(savecontext)
49 pushl %ebp /* New Frame! */
51 pusha /* Push all registers */
52 movl $1,_C_LABEL(PRE_Block) /* Pre-emption code */
53 movl area1(%ebp),%eax /* eax = base of savearea */
54 movl %esp,(%eax) /* area->topstack = esp */
55 movl newsp(%ebp),%eax /* get new sp into eax */
57 je L1 /* if new sp is 0 then dont change esp */
58 movl %eax,%esp /* go ahead. make my day! */
60 jmp *f(%ebp) /* ebx = &f */
62 /* Shouldn't be here....*/
68 * struct savearea *area2;
74 .globl _C_LABEL(returnto)
78 movl %esp, %ebp /* New frame, to get correct pointer */
79 movl area2(%ebp),%eax /* eax = area2 */
80 movl (%eax),%esp /* restore esp */
82 movl $0,_C_LABEL(PRE_Block) /* clear it up... */
86 /* I see, said the blind man, as he picked up his hammer and saw! */