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/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License, Version 1.0 only
* (the "License"). You may not use this file except in compliance
* with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright (c) 1999 by Sun Microsystems, Inc.
* All rights reserved.
*/
#pragma ident "%Z%%M% %I% %E% SMI"
#include <stdio.h>
#include <fcode/private.h>
#include <fcode/log.h>
void
do_run(fcode_env_t *env, int next)
{
token_t target, indirect;
void (*fn)(fcode_env_t *env);
int debug_state = current_debug_state(env);
extern void do_memory_watch(fcode_env_t *env);
for (; ; ) {
if (next) {
DEBUGF(NEXT_VITALS, output_vitals(env);
log_message(MSG_FC_DEBUG, "\n"));
CHECK_INTERRUPT;
if (IP == NULL)
break;
WA = (token_t *) *IP;
IP++;
}
check_for_debug_entry(env);
indirect = *WA;
if (indirect & 1) {
target = indirect & ~1;
target = *((token_t *)target);
} else
target = indirect;
fn = (void (*)(fcode_env_t *)) target;
if (do_exec_debug(env, (void *)fn))
break;
if (indirect & 1) {
PUSH(DS, (fstack_t) (WA+1));
WA = (token_t *) target;
}
WA++;
fn(env);
check_vitals(env);
check_for_debug_exit(env);
do_memory_watch(env);
next = 1;
}
clear_debug_state(env, debug_state);
}
void
do_semi(fcode_env_t *env)
{
CHECK_RETURN_DEPTH(env, 1, ";");
check_semi_debug_exit(env);
IP = (token_t *) POP(RS);
}
void
do_colon(fcode_env_t *env)
{
PUSH(RS, (fstack_t) IP);
IP = WA;
}
void
do_alias(fcode_env_t *env)
{
token_t *ip;
ip = IP;
IP = 0;
WA = (token_t *) *WA;
do_run(env, 0);
IP = ip;
}
void
execute(fcode_env_t *env)
{
token_t *ip, *wa;
/*
* In order to ensure that only this token executes we
* force IP to zero after stashing it, then when the stack
* unwinds (do_run returns) we can restore the old value.
*/
CHECK_DEPTH(env, 1, "execute");
ip = IP;
wa = WA;
IP = 0;
WA = (token_t *) POP(DS);
do_run(env, 0);
IP = ip;
WA = wa;
}
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