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| Current File : //sys/boot/ficl/tools.c |
/*******************************************************************
** t o o l s . c
** Forth Inspired Command Language - programming tools
** Author: John Sadler (john_sadler@alum.mit.edu)
** Created: 20 June 2000
** $Id: tools.c,v 1.11 2001/12/05 07:21:34 jsadler Exp $
*******************************************************************/
/*
** Copyright (c) 1997-2001 John Sadler (john_sadler@alum.mit.edu)
** All rights reserved.
**
** Get the latest Ficl release at http://ficl.sourceforge.net
**
** I am interested in hearing from anyone who uses ficl. If you have
** a problem, a success story, a defect, an enhancement request, or
** if you would like to contribute to the ficl release, please
** contact me by email at the address above.
**
** L I C E N S E and D I S C L A I M E R
**
** Redistribution and use in source and binary forms, with or without
** modification, are permitted provided that the following conditions
** are met:
** 1. Redistributions of source code must retain the above copyright
** notice, this list of conditions and the following disclaimer.
** 2. Redistributions in binary form must reproduce the above copyright
** notice, this list of conditions and the following disclaimer in the
** documentation and/or other materials provided with the distribution.
**
** THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
** ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
** IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
** ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
** FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
** DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
** OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
** HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
** LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
** OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
** SUCH DAMAGE.
*/
/*
** NOTES:
** SEE needs information about the addresses of functions that
** are the CFAs of colon definitions, constants, variables, DOES>
** words, and so on. It gets this information from a table and supporting
** functions in words.c.
** colonParen doDoes createParen variableParen userParen constantParen
**
** Step and break debugger for Ficl
** debug ( xt -- ) Start debugging an xt
** Set a breakpoint
** Specify breakpoint default action
*/
/* $FreeBSD: release/9.1.0/sys/boot/ficl/tools.c 167850 2007-03-23 22:26:01Z jkim $ */
#ifdef TESTMAIN
#include <stdlib.h>
#include <stdio.h> /* sprintf */
#include <ctype.h>
#else
#include <stand.h>
#endif
#include <string.h>
#include "ficl.h"
#if 0
/*
** nBREAKPOINTS sizes the breakpoint array. One breakpoint (bp 0) is reserved
** for the STEP command. The rest are user programmable.
*/
#define nBREAKPOINTS 32
#endif
/**************************************************************************
v m S e t B r e a k
** Set a breakpoint at the current value of IP by
** storing that address in a BREAKPOINT record
**************************************************************************/
static void vmSetBreak(FICL_VM *pVM, FICL_BREAKPOINT *pBP)
{
FICL_WORD *pStep = ficlLookup(pVM->pSys, "step-break");
assert(pStep);
pBP->address = pVM->ip;
pBP->origXT = *pVM->ip;
*pVM->ip = pStep;
}
/**************************************************************************
** d e b u g P r o m p t
**************************************************************************/
static void debugPrompt(FICL_VM *pVM)
{
vmTextOut(pVM, "dbg> ", 0);
}
/**************************************************************************
** i s A F i c l W o r d
** Vet a candidate pointer carefully to make sure
** it's not some chunk o' inline data...
** It has to have a name, and it has to look
** like it's in the dictionary address range.
** NOTE: this excludes :noname words!
**************************************************************************/
int isAFiclWord(FICL_DICT *pd, FICL_WORD *pFW)
{
if (!dictIncludes(pd, pFW))
return 0;
if (!dictIncludes(pd, pFW->name))
return 0;
if ((pFW->link != NULL) && !dictIncludes(pd, pFW->link))
return 0;
if ((pFW->nName <= 0) || (pFW->name[pFW->nName] != '\0'))
return 0;
if (strlen(pFW->name) != pFW->nName)
return 0;
return 1;
}
#if 0
static int isPrimitive(FICL_WORD *pFW)
{
WORDKIND wk = ficlWordClassify(pFW);
return ((wk != COLON) && (wk != DOES));
}
#endif
/**************************************************************************
f i n d E n c l o s i n g W o r d
** Given a pointer to something, check to make sure it's an address in the
** dictionary. If so, search backwards until we find something that looks
** like a dictionary header. If successful, return the address of the
** FICL_WORD found. Otherwise return NULL.
** nSEARCH_CELLS sets the maximum neighborhood this func will search before giving up
**************************************************************************/
#define nSEARCH_CELLS 100
static FICL_WORD *findEnclosingWord(FICL_VM *pVM, CELL *cp)
{
FICL_WORD *pFW;
FICL_DICT *pd = vmGetDict(pVM);
int i;
if (!dictIncludes(pd, (void *)cp))
return NULL;
for (i = nSEARCH_CELLS; i > 0; --i, --cp)
{
pFW = (FICL_WORD *)(cp + 1 - (sizeof (FICL_WORD) / sizeof (CELL)));
if (isAFiclWord(pd, pFW))
return pFW;
}
return NULL;
}
/**************************************************************************
s e e
** TOOLS ( "<spaces>name" -- )
** Display a human-readable representation of the named word's definition.
** The source of the representation (object-code decompilation, source
** block, etc.) and the particular form of the display is implementation
** defined.
**************************************************************************/
/*
** seeColon (for proctologists only)
** Walks a colon definition, decompiling
** on the fly. Knows about primitive control structures.
*/
static void seeColon(FICL_VM *pVM, CELL *pc)
{
char *cp;
CELL *param0 = pc;
FICL_DICT *pd = vmGetDict(pVM);
FICL_WORD *pSemiParen = ficlLookup(pVM->pSys, "(;)");
assert(pSemiParen);
for (; pc->p != pSemiParen; pc++)
{
FICL_WORD *pFW = (FICL_WORD *)(pc->p);
cp = pVM->pad;
if ((void *)pc == (void *)pVM->ip)
*cp++ = '>';
else
*cp++ = ' ';
cp += sprintf(cp, "%3d ", pc-param0);
if (isAFiclWord(pd, pFW))
{
WORDKIND kind = ficlWordClassify(pFW);
CELL c;
switch (kind)
{
case LITERAL:
c = *++pc;
if (isAFiclWord(pd, c.p))
{
FICL_WORD *pLit = (FICL_WORD *)c.p;
sprintf(cp, "%.*s ( %#lx literal )",
pLit->nName, pLit->name, c.u);
}
else
sprintf(cp, "literal %ld (%#lx)", c.i, c.u);
break;
case STRINGLIT:
{
FICL_STRING *sp = (FICL_STRING *)(void *)++pc;
pc = (CELL *)alignPtr(sp->text + sp->count + 1) - 1;
sprintf(cp, "s\" %.*s\"", sp->count, sp->text);
}
break;
case CSTRINGLIT:
{
FICL_STRING *sp = (FICL_STRING *)(void *)++pc;
pc = (CELL *)alignPtr(sp->text + sp->count + 1) - 1;
sprintf(cp, "c\" %.*s\"", sp->count, sp->text);
}
break;
case IF:
c = *++pc;
if (c.i > 0)
sprintf(cp, "if / while (branch %d)", pc+c.i-param0);
else
sprintf(cp, "until (branch %d)", pc+c.i-param0);
break;
case BRANCH:
c = *++pc;
if (c.i == 0)
sprintf(cp, "repeat (branch %d)", pc+c.i-param0);
else if (c.i == 1)
sprintf(cp, "else (branch %d)", pc+c.i-param0);
else
sprintf(cp, "endof (branch %d)", pc+c.i-param0);
break;
case OF:
c = *++pc;
sprintf(cp, "of (branch %d)", pc+c.i-param0);
break;
case QDO:
c = *++pc;
sprintf(cp, "?do (leave %d)", (CELL *)c.p-param0);
break;
case DO:
c = *++pc;
sprintf(cp, "do (leave %d)", (CELL *)c.p-param0);
break;
case LOOP:
c = *++pc;
sprintf(cp, "loop (branch %d)", pc+c.i-param0);
break;
case PLOOP:
c = *++pc;
sprintf(cp, "+loop (branch %d)", pc+c.i-param0);
break;
default:
sprintf(cp, "%.*s", pFW->nName, pFW->name);
break;
}
}
else /* probably not a word - punt and print value */
{
sprintf(cp, "%ld ( %#lx )", pc->i, pc->u);
}
vmTextOut(pVM, pVM->pad, 1);
}
vmTextOut(pVM, ";", 1);
}
/*
** Here's the outer part of the decompiler. It's
** just a big nested conditional that checks the
** CFA of the word to decompile for each kind of
** known word-builder code, and tries to do
** something appropriate. If the CFA is not recognized,
** just indicate that it is a primitive.
*/
static void seeXT(FICL_VM *pVM)
{
FICL_WORD *pFW;
WORDKIND kind;
pFW = (FICL_WORD *)stackPopPtr(pVM->pStack);
kind = ficlWordClassify(pFW);
switch (kind)
{
case COLON:
sprintf(pVM->pad, ": %.*s", pFW->nName, pFW->name);
vmTextOut(pVM, pVM->pad, 1);
seeColon(pVM, pFW->param);
break;
case DOES:
vmTextOut(pVM, "does>", 1);
seeColon(pVM, (CELL *)pFW->param->p);
break;
case CREATE:
vmTextOut(pVM, "create", 1);
break;
case VARIABLE:
sprintf(pVM->pad, "variable = %ld (%#lx)", pFW->param->i, pFW->param->u);
vmTextOut(pVM, pVM->pad, 1);
break;
#if FICL_WANT_USER
case USER:
sprintf(pVM->pad, "user variable %ld (%#lx)", pFW->param->i, pFW->param->u);
vmTextOut(pVM, pVM->pad, 1);
break;
#endif
case CONSTANT:
sprintf(pVM->pad, "constant = %ld (%#lx)", pFW->param->i, pFW->param->u);
vmTextOut(pVM, pVM->pad, 1);
default:
sprintf(pVM->pad, "%.*s is a primitive", pFW->nName, pFW->name);
vmTextOut(pVM, pVM->pad, 1);
break;
}
if (pFW->flags & FW_IMMEDIATE)
{
vmTextOut(pVM, "immediate", 1);
}
if (pFW->flags & FW_COMPILE)
{
vmTextOut(pVM, "compile-only", 1);
}
return;
}
static void see(FICL_VM *pVM)
{
ficlTick(pVM);
seeXT(pVM);
return;
}
/**************************************************************************
f i c l D e b u g X T
** debug ( xt -- )
** Given an xt of a colon definition or a word defined by DOES>, set the
** VM up to debug the word: push IP, set the xt as the next thing to execute,
** set a breakpoint at its first instruction, and run to the breakpoint.
** Note: the semantics of this word are equivalent to "step in"
**************************************************************************/
void ficlDebugXT(FICL_VM *pVM)
{
FICL_WORD *xt = stackPopPtr(pVM->pStack);
WORDKIND wk = ficlWordClassify(xt);
stackPushPtr(pVM->pStack, xt);
seeXT(pVM);
switch (wk)
{
case COLON:
case DOES:
/*
** Run the colon code and set a breakpoint at the next instruction
*/
vmExecute(pVM, xt);
vmSetBreak(pVM, &(pVM->pSys->bpStep));
break;
default:
vmExecute(pVM, xt);
break;
}
return;
}
/**************************************************************************
s t e p I n
** FICL
** Execute the next instruction, stepping into it if it's a colon definition
** or a does> word. This is the easy kind of step.
**************************************************************************/
void stepIn(FICL_VM *pVM)
{
/*
** Do one step of the inner loop
*/
{
M_VM_STEP(pVM)
}
/*
** Now set a breakpoint at the next instruction
*/
vmSetBreak(pVM, &(pVM->pSys->bpStep));
return;
}
/**************************************************************************
s t e p O v e r
** FICL
** Execute the next instruction atomically. This requires some insight into
** the memory layout of compiled code. Set a breakpoint at the next instruction
** in this word, and run until we hit it
**************************************************************************/
void stepOver(FICL_VM *pVM)
{
FICL_WORD *pFW;
WORDKIND kind;
FICL_WORD *pStep = ficlLookup(pVM->pSys, "step-break");
assert(pStep);
pFW = *pVM->ip;
kind = ficlWordClassify(pFW);
switch (kind)
{
case COLON:
case DOES:
/*
** assume that the next cell holds an instruction
** set a breakpoint there and return to the inner interp
*/
pVM->pSys->bpStep.address = pVM->ip + 1;
pVM->pSys->bpStep.origXT = pVM->ip[1];
pVM->ip[1] = pStep;
break;
default:
stepIn(pVM);
break;
}
return;
}
/**************************************************************************
s t e p - b r e a k
** FICL
** Handles breakpoints for stepped execution.
** Upon entry, bpStep contains the address and replaced instruction
** of the current breakpoint.
** Clear the breakpoint
** Get a command from the console.
** i (step in) - execute the current instruction and set a new breakpoint
** at the IP
** o (step over) - execute the current instruction to completion and set
** a new breakpoint at the IP
** g (go) - execute the current instruction and exit
** q (quit) - abort current word
** b (toggle breakpoint)
**************************************************************************/
void stepBreak(FICL_VM *pVM)
{
STRINGINFO si;
FICL_WORD *pFW;
FICL_WORD *pOnStep;
if (!pVM->fRestart)
{
assert(pVM->pSys->bpStep.address);
assert(pVM->pSys->bpStep.origXT);
/*
** Clear the breakpoint that caused me to run
** Restore the original instruction at the breakpoint,
** and restore the IP
*/
pVM->ip = (IPTYPE)(pVM->pSys->bpStep.address);
*pVM->ip = pVM->pSys->bpStep.origXT;
/*
** If there's an onStep, do it
*/
pOnStep = ficlLookup(pVM->pSys, "on-step");
if (pOnStep)
ficlExecXT(pVM, pOnStep);
/*
** Print the name of the next instruction
*/
pFW = pVM->pSys->bpStep.origXT;
sprintf(pVM->pad, "next: %.*s", pFW->nName, pFW->name);
#if 0
if (isPrimitive(pFW))
{
strcat(pVM->pad, " ( primitive )");
}
#endif
vmTextOut(pVM, pVM->pad, 1);
debugPrompt(pVM);
}
else
{
pVM->fRestart = 0;
}
si = vmGetWord(pVM);
if (!strincmp(si.cp, "i", si.count))
{
stepIn(pVM);
}
else if (!strincmp(si.cp, "g", si.count))
{
return;
}
else if (!strincmp(si.cp, "l", si.count))
{
FICL_WORD *xt;
xt = findEnclosingWord(pVM, (CELL *)(pVM->ip));
if (xt)
{
stackPushPtr(pVM->pStack, xt);
seeXT(pVM);
}
else
{
vmTextOut(pVM, "sorry - can't do that", 1);
}
vmThrow(pVM, VM_RESTART);
}
else if (!strincmp(si.cp, "o", si.count))
{
stepOver(pVM);
}
else if (!strincmp(si.cp, "q", si.count))
{
ficlTextOut(pVM, FICL_PROMPT, 0);
vmThrow(pVM, VM_ABORT);
}
else if (!strincmp(si.cp, "x", si.count))
{
/*
** Take whatever's left in the TIB and feed it to a subordinate ficlExec
*/
int ret;
char *cp = pVM->tib.cp + pVM->tib.index;
int count = pVM->tib.end - cp;
FICL_WORD *oldRun = pVM->runningWord;
ret = ficlExecC(pVM, cp, count);
if (ret == VM_OUTOFTEXT)
{
ret = VM_RESTART;
pVM->runningWord = oldRun;
vmTextOut(pVM, "", 1);
}
vmThrow(pVM, ret);
}
else
{
vmTextOut(pVM, "i -- step In", 1);
vmTextOut(pVM, "o -- step Over", 1);
vmTextOut(pVM, "g -- Go (execute to completion)", 1);
vmTextOut(pVM, "l -- List source code", 1);
vmTextOut(pVM, "q -- Quit (stop debugging and abort)", 1);
vmTextOut(pVM, "x -- eXecute the rest of the line as ficl words", 1);
debugPrompt(pVM);
vmThrow(pVM, VM_RESTART);
}
return;
}
/**************************************************************************
b y e
** TOOLS
** Signal the system to shut down - this causes ficlExec to return
** VM_USEREXIT. The rest is up to you.
**************************************************************************/
static void bye(FICL_VM *pVM)
{
vmThrow(pVM, VM_USEREXIT);
return;
}
/**************************************************************************
d i s p l a y S t a c k
** TOOLS
** Display the parameter stack (code for ".s")
**************************************************************************/
static void displayPStack(FICL_VM *pVM)
{
FICL_STACK *pStk = pVM->pStack;
int d = stackDepth(pStk);
int i;
CELL *pCell;
vmCheckStack(pVM, 0, 0);
if (d == 0)
vmTextOut(pVM, "(Stack Empty) ", 0);
else
{
pCell = pStk->base;
for (i = 0; i < d; i++)
{
vmTextOut(pVM, ltoa((*pCell++).i, pVM->pad, pVM->base), 0);
vmTextOut(pVM, " ", 0);
}
}
return;
}
static void displayRStack(FICL_VM *pVM)
{
FICL_STACK *pStk = pVM->rStack;
int d = stackDepth(pStk);
int i;
CELL *pCell;
FICL_DICT *dp = vmGetDict(pVM);
vmCheckStack(pVM, 0, 0);
if (d == 0)
vmTextOut(pVM, "(Stack Empty) ", 0);
else
{
pCell = pStk->base;
for (i = 0; i < d; i++)
{
CELL c = *pCell++;
/*
** Attempt to find the word that contains the
** stacked address (as if it is part of a colon definition).
** If this works, print the name of the word. Otherwise print
** the value as a number.
*/
if (dictIncludes(dp, c.p))
{
FICL_WORD *pFW = findEnclosingWord(pVM, c.p);
if (pFW)
{
int offset = (CELL *)c.p - &pFW->param[0];
sprintf(pVM->pad, "%s+%d ", pFW->name, offset);
vmTextOut(pVM, pVM->pad, 0);
continue; /* no need to print the numeric value */
}
}
vmTextOut(pVM, ltoa(c.i, pVM->pad, pVM->base), 0);
vmTextOut(pVM, " ", 0);
}
}
return;
}
/**************************************************************************
f o r g e t - w i d
**
**************************************************************************/
static void forgetWid(FICL_VM *pVM)
{
FICL_DICT *pDict = vmGetDict(pVM);
FICL_HASH *pHash;
pHash = (FICL_HASH *)stackPopPtr(pVM->pStack);
hashForget(pHash, pDict->here);
return;
}
/**************************************************************************
f o r g e t
** TOOLS EXT ( "<spaces>name" -- )
** Skip leading space delimiters. Parse name delimited by a space.
** Find name, then delete name from the dictionary along with all
** words added to the dictionary after name. An ambiguous
** condition exists if name cannot be found.
**
** If the Search-Order word set is present, FORGET searches the
** compilation word list. An ambiguous condition exists if the
** compilation word list is deleted.
**************************************************************************/
static void forget(FICL_VM *pVM)
{
void *where;
FICL_DICT *pDict = vmGetDict(pVM);
FICL_HASH *pHash = pDict->pCompile;
ficlTick(pVM);
where = ((FICL_WORD *)stackPopPtr(pVM->pStack))->name;
hashForget(pHash, where);
pDict->here = PTRtoCELL where;
return;
}
/**************************************************************************
l i s t W o r d s
**
**************************************************************************/
#define nCOLWIDTH 8
static void listWords(FICL_VM *pVM)
{
FICL_DICT *dp = vmGetDict(pVM);
FICL_HASH *pHash = dp->pSearch[dp->nLists - 1];
FICL_WORD *wp;
int nChars = 0;
int len;
int y = 0;
unsigned i;
int nWords = 0;
char *cp;
char *pPad = pVM->pad;
for (i = 0; i < pHash->size; i++)
{
for (wp = pHash->table[i]; wp != NULL; wp = wp->link, nWords++)
{
if (wp->nName == 0) /* ignore :noname defs */
continue;
cp = wp->name;
nChars += sprintf(pPad + nChars, "%s", cp);
if (nChars > 70)
{
pPad[nChars] = '\0';
nChars = 0;
y++;
if(y>23) {
y=0;
vmTextOut(pVM, "--- Press Enter to continue ---",0);
getchar();
vmTextOut(pVM,"\r",0);
}
vmTextOut(pVM, pPad, 1);
}
else
{
len = nCOLWIDTH - nChars % nCOLWIDTH;
while (len-- > 0)
pPad[nChars++] = ' ';
}
if (nChars > 70)
{
pPad[nChars] = '\0';
nChars = 0;
y++;
if(y>23) {
y=0;
vmTextOut(pVM, "--- Press Enter to continue ---",0);
getchar();
vmTextOut(pVM,"\r",0);
}
vmTextOut(pVM, pPad, 1);
}
}
}
if (nChars > 0)
{
pPad[nChars] = '\0';
nChars = 0;
vmTextOut(pVM, pPad, 1);
}
sprintf(pVM->pad, "Dictionary: %d words, %ld cells used of %u total",
nWords, (long) (dp->here - dp->dict), dp->size);
vmTextOut(pVM, pVM->pad, 1);
return;
}
/**************************************************************************
l i s t E n v
** Print symbols defined in the environment
**************************************************************************/
static void listEnv(FICL_VM *pVM)
{
FICL_DICT *dp = pVM->pSys->envp;
FICL_HASH *pHash = dp->pForthWords;
FICL_WORD *wp;
unsigned i;
int nWords = 0;
for (i = 0; i < pHash->size; i++)
{
for (wp = pHash->table[i]; wp != NULL; wp = wp->link, nWords++)
{
vmTextOut(pVM, wp->name, 1);
}
}
sprintf(pVM->pad, "Environment: %d words, %ld cells used of %u total",
nWords, (long) (dp->here - dp->dict), dp->size);
vmTextOut(pVM, pVM->pad, 1);
return;
}
/**************************************************************************
e n v C o n s t a n t
** Ficl interface to ficlSetEnv and ficlSetEnvD - allow ficl code to set
** environment constants...
**************************************************************************/
static void envConstant(FICL_VM *pVM)
{
unsigned value;
#if FICL_ROBUST > 1
vmCheckStack(pVM, 1, 0);
#endif
vmGetWordToPad(pVM);
value = POPUNS();
ficlSetEnv(pVM->pSys, pVM->pad, (FICL_UNS)value);
return;
}
static void env2Constant(FICL_VM *pVM)
{
unsigned v1, v2;
#if FICL_ROBUST > 1
vmCheckStack(pVM, 2, 0);
#endif
vmGetWordToPad(pVM);
v2 = POPUNS();
v1 = POPUNS();
ficlSetEnvD(pVM->pSys, pVM->pad, v1, v2);
return;
}
/**************************************************************************
f i c l C o m p i l e T o o l s
** Builds wordset for debugger and TOOLS optional word set
**************************************************************************/
void ficlCompileTools(FICL_SYSTEM *pSys)
{
FICL_DICT *dp = pSys->dp;
assert (dp);
/*
** TOOLS and TOOLS EXT
*/
dictAppendWord(dp, ".s", displayPStack, FW_DEFAULT);
dictAppendWord(dp, "bye", bye, FW_DEFAULT);
dictAppendWord(dp, "forget", forget, FW_DEFAULT);
dictAppendWord(dp, "see", see, FW_DEFAULT);
dictAppendWord(dp, "words", listWords, FW_DEFAULT);
/*
** Set TOOLS environment query values
*/
ficlSetEnv(pSys, "tools", FICL_TRUE);
ficlSetEnv(pSys, "tools-ext", FICL_FALSE);
/*
** Ficl extras
*/
dictAppendWord(dp, "r.s", displayRStack, FW_DEFAULT); /* guy carver */
dictAppendWord(dp, ".env", listEnv, FW_DEFAULT);
dictAppendWord(dp, "env-constant",
envConstant, FW_DEFAULT);
dictAppendWord(dp, "env-2constant",
env2Constant, FW_DEFAULT);
dictAppendWord(dp, "debug-xt", ficlDebugXT, FW_DEFAULT);
dictAppendWord(dp, "parse-order",
ficlListParseSteps,
FW_DEFAULT);
dictAppendWord(dp, "step-break",stepBreak, FW_DEFAULT);
dictAppendWord(dp, "forget-wid",forgetWid, FW_DEFAULT);
dictAppendWord(dp, "see-xt", seeXT, FW_DEFAULT);
return;
}