1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate * CDDL HEADER START
3*0Sstevel@tonic-gate *
4*0Sstevel@tonic-gate * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance
7*0Sstevel@tonic-gate * with the License.
8*0Sstevel@tonic-gate *
9*0Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate * and limitations under the License.
13*0Sstevel@tonic-gate *
14*0Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate *
20*0Sstevel@tonic-gate * CDDL HEADER END
21*0Sstevel@tonic-gate */
22*0Sstevel@tonic-gate /*
23*0Sstevel@tonic-gate * Copyright (c) 1999 by Sun Microsystems, Inc.
24*0Sstevel@tonic-gate * All rights reserved.
25*0Sstevel@tonic-gate */
26*0Sstevel@tonic-gate
27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI"
28*0Sstevel@tonic-gate
29*0Sstevel@tonic-gate #include <stdio.h>
30*0Sstevel@tonic-gate
31*0Sstevel@tonic-gate #include <fcode/private.h>
32*0Sstevel@tonic-gate #include <fcode/log.h>
33*0Sstevel@tonic-gate
34*0Sstevel@tonic-gate void
do_run(fcode_env_t * env,int next)35*0Sstevel@tonic-gate do_run(fcode_env_t *env, int next)
36*0Sstevel@tonic-gate {
37*0Sstevel@tonic-gate token_t target, indirect;
38*0Sstevel@tonic-gate void (*fn)(fcode_env_t *env);
39*0Sstevel@tonic-gate int debug_state = current_debug_state(env);
40*0Sstevel@tonic-gate extern void do_memory_watch(fcode_env_t *env);
41*0Sstevel@tonic-gate
42*0Sstevel@tonic-gate for (; ; ) {
43*0Sstevel@tonic-gate if (next) {
44*0Sstevel@tonic-gate DEBUGF(NEXT_VITALS, output_vitals(env);
45*0Sstevel@tonic-gate log_message(MSG_FC_DEBUG, "\n"));
46*0Sstevel@tonic-gate CHECK_INTERRUPT;
47*0Sstevel@tonic-gate if (IP == NULL)
48*0Sstevel@tonic-gate break;
49*0Sstevel@tonic-gate WA = (token_t *) *IP;
50*0Sstevel@tonic-gate IP++;
51*0Sstevel@tonic-gate }
52*0Sstevel@tonic-gate check_for_debug_entry(env);
53*0Sstevel@tonic-gate indirect = *WA;
54*0Sstevel@tonic-gate if (indirect & 1) {
55*0Sstevel@tonic-gate target = indirect & ~1;
56*0Sstevel@tonic-gate target = *((token_t *)target);
57*0Sstevel@tonic-gate } else
58*0Sstevel@tonic-gate target = indirect;
59*0Sstevel@tonic-gate fn = (void (*)(fcode_env_t *)) target;
60*0Sstevel@tonic-gate if (do_exec_debug(env, (void *)fn))
61*0Sstevel@tonic-gate break;
62*0Sstevel@tonic-gate if (indirect & 1) {
63*0Sstevel@tonic-gate PUSH(DS, (fstack_t) (WA+1));
64*0Sstevel@tonic-gate WA = (token_t *) target;
65*0Sstevel@tonic-gate }
66*0Sstevel@tonic-gate WA++;
67*0Sstevel@tonic-gate fn(env);
68*0Sstevel@tonic-gate check_vitals(env);
69*0Sstevel@tonic-gate check_for_debug_exit(env);
70*0Sstevel@tonic-gate do_memory_watch(env);
71*0Sstevel@tonic-gate next = 1;
72*0Sstevel@tonic-gate }
73*0Sstevel@tonic-gate clear_debug_state(env, debug_state);
74*0Sstevel@tonic-gate }
75*0Sstevel@tonic-gate
76*0Sstevel@tonic-gate void
do_semi(fcode_env_t * env)77*0Sstevel@tonic-gate do_semi(fcode_env_t *env)
78*0Sstevel@tonic-gate {
79*0Sstevel@tonic-gate CHECK_RETURN_DEPTH(env, 1, ";");
80*0Sstevel@tonic-gate check_semi_debug_exit(env);
81*0Sstevel@tonic-gate IP = (token_t *) POP(RS);
82*0Sstevel@tonic-gate }
83*0Sstevel@tonic-gate
84*0Sstevel@tonic-gate void
do_colon(fcode_env_t * env)85*0Sstevel@tonic-gate do_colon(fcode_env_t *env)
86*0Sstevel@tonic-gate {
87*0Sstevel@tonic-gate PUSH(RS, (fstack_t) IP);
88*0Sstevel@tonic-gate IP = WA;
89*0Sstevel@tonic-gate }
90*0Sstevel@tonic-gate
91*0Sstevel@tonic-gate void
do_alias(fcode_env_t * env)92*0Sstevel@tonic-gate do_alias(fcode_env_t *env)
93*0Sstevel@tonic-gate {
94*0Sstevel@tonic-gate token_t *ip;
95*0Sstevel@tonic-gate
96*0Sstevel@tonic-gate ip = IP;
97*0Sstevel@tonic-gate IP = 0;
98*0Sstevel@tonic-gate WA = (token_t *) *WA;
99*0Sstevel@tonic-gate do_run(env, 0);
100*0Sstevel@tonic-gate IP = ip;
101*0Sstevel@tonic-gate }
102*0Sstevel@tonic-gate
103*0Sstevel@tonic-gate void
execute(fcode_env_t * env)104*0Sstevel@tonic-gate execute(fcode_env_t *env)
105*0Sstevel@tonic-gate {
106*0Sstevel@tonic-gate token_t *ip, *wa;
107*0Sstevel@tonic-gate
108*0Sstevel@tonic-gate /*
109*0Sstevel@tonic-gate * In order to ensure that only this token executes we
110*0Sstevel@tonic-gate * force IP to zero after stashing it, then when the stack
111*0Sstevel@tonic-gate * unwinds (do_run returns) we can restore the old value.
112*0Sstevel@tonic-gate */
113*0Sstevel@tonic-gate CHECK_DEPTH(env, 1, "execute");
114*0Sstevel@tonic-gate ip = IP;
115*0Sstevel@tonic-gate wa = WA;
116*0Sstevel@tonic-gate IP = 0;
117*0Sstevel@tonic-gate WA = (token_t *) POP(DS);
118*0Sstevel@tonic-gate do_run(env, 0);
119*0Sstevel@tonic-gate IP = ip;
120*0Sstevel@tonic-gate WA = wa;
121*0Sstevel@tonic-gate }
122