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builtin.c
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/* Modified for VM/370 CMS and GCC by Robert O'Hara, July 2010. */
/*
* $Id: builtin.c,v 1.12 2009/06/02 09:41:27 bnv Exp $
* $Log: builtin.c,v $
* Revision 1.12 2009/06/02 09:41:27 bnv
* MVS/CMS corrections
*
* Revision 1.11 2008/07/15 07:40:25 bnv
* #include changed from <> to ""
*
* Revision 1.10 2008/07/14 13:08:42 bnv
* MVS,CMS support
*
* Revision 1.9 2006/01/26 10:24:40 bnv
* Changed: RxVar...Old() -> RxVar...Name()
*
* Revision 1.8 2004/03/27 08:32:37 bnv
* Corrected: sourceline was reporting wrong lines after an interpret statement
*
* Revision 1.7 2003/10/30 13:15:51 bnv
* Cosmetics
*
* Revision 1.6 2003/02/12 16:41:40 bnv
* *** empty log message ***
*
* Revision 1.5 2002/06/11 12:37:38 bnv
* Added: CDECL
*
* Revision 1.4 2002/01/14 10:22:48 bnv
* Changed: Scan all the dirs in the RXLIB path
*
* Revision 1.3 2001/06/25 18:51:48 bnv
* Header -> Id
*
* Revision 1.2 1999/11/26 13:13:47 bnv
* Added: WIN-32 & Windows CE support
*
* Revision 1.1 1998/07/02 17:34:50 bnv
* Initial revision
*
*/
#ifndef WCE
# include <time.h>
#endif
#include <stdlib.h>
#include <string.h>
#include <cmssys.h>
#ifdef __BORLANDC__
# include <dos.h>
//# include <alloc.h>
#else
# ifndef GCC
struct timeval_st {
unsigned long tv_sec;
long tv_usec;
};
# endif
#endif
#include "lerror.h"
#include "lstring.h"
#include "ldefs.h"
#include "options.h"
#include "rexx.h"
#include "stack.h"
#include "trace.h"
#include "rxdefs.h"
#include "dqueue.h"
#include "compile.h"
#include "interpre.h"
#ifdef WIN
# include <winfunc.h>
#endif
/* -------------------------------------------------------------- */
/* ADDRESS() */
/* -------------------------------------------------------------- */
/* DESBUF() */
/* -------------------------------------------------------------- */
/* DIGITS() */
/* -------------------------------------------------------------- */
/* FORM() */
/* -------------------------------------------------------------- */
/* FUZZ() */
/* -------------------------------------------------------------- */
/* QUEUED() */
/* -------------------------------------------------------------- */
/* -- WIN32_WCE ------------------------------------------------- */
/* LASTERROR() */
/* -------------------------------------------------------------- */
void __CDECL
R_O(const int func) {
long items;
Context *context = (Context *) CMSGetPG();
if (ARGN)
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
switch (func) {
case f_address:
if ((context->rexx_proc)[(context->rexx_rx_proc)].env == NULL)
Lstrcpy(ARGR, &((context->rexxsystemStr)->key));
else
Lstrcpy(ARGR,
(context->rexx_proc)[(context->rexx_rx_proc)].env);
break;
#ifndef __CMS__
case f_desbuf:
items = 0;
while (1) {
items += StackQueued();
if ((context->rexxrxStackList).items > 1)
DeleteStack();
else {
DQFlush(DQPEEK(&(context->rexxrxStackList)), _Lfree);
break;
}
}
Licpy(ARGR, items);
break;
#endif
case f_digits:
Licpy(ARGR, (context->rexx_proc)[(context->rexx_rx_proc)].digits);
break;
case f_form:
if ((context->rexx_proc)[(context->rexx_rx_proc)].form ==
SCIENTIFIC)
Lscpy(ARGR, "SCIENTIFIC");
else
Lscpy(ARGR, "ENGINEERING");
break;
case f_fuzz:
Licpy(ARGR, (context->rexx_proc)[(context->rexx_rx_proc)].fuzz);
break;
#ifndef __CMS__
case f_makebuf:
CreateStack();
Licpy(ARGR, (context->rexxrxStackList).items);
break;
#endif
#ifdef WIN
case f_lasterror:
Licpy(ARGR,GetLastError());
break;
#endif
default:
(context->lstring_Lerror)(ERR_INTERPRETER_FAILURE, 0);
}
} /* R_O */
/* -------------------------------------------------------------- */
/* CONDITION((option)) return info about currebt condition */
/* Options C=Condition, D=Description, I=Instruction (default) */
/* S=State. MVS also allows X=???. */
/* -------------------------------------------------------------- */
/* DATE((option)) */
/* -------------------------------------------------------------- */
/* TIME((option)) */
/* -------------------------------------------------------------- */
/* TRACE((option)) */
/* -------------------------------------------------------------- */
/* QUEUED((option)) */
/* Options A=All (default), B=buffers, T=Topmost buffer */
/* -------------------------------------------------------------- */
void __CDECL
R_C(const int func) {
int i;
long items;
char option = 'N';
DQueueElem *qe;
Context *context = (Context *) CMSGetPG();
if (func == f_condition)
option = 'I'; // default
if (ARGN > 1)
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
if (exist(1)) {
L2STR(ARG1);
option = (context->lstring_l2u)[(byte) LSTR(*ARG1)[0]];
}
switch (func) {
case f_condition:
Lscpy(ARGR, "");
switch (option) {
case 'C':
Lscpy(ARGR, (context->interpre_SignalCondition));
break;
case 'D':
Lscpy(ARGR, (context->interpre_SignalDescription));
if ((LLEN(*ARGR) == 0) ||
(strstr((context->interpre_SignalDescription), "Line ") != 0))
Lscpy(ARGR, (context->interpre_SignalLine));
break;
case 'I':
/* TODO: When CALL ON works, "CALL" is possible too. */
if (strlen((context->interpre_SignalCondition)) > 0)
Lscpy(ARGR, "SIGNAL");
break;
case 'S':
switch ((context->interpre_SignalCondition)[0]) {
case 'E': i = SC_ERROR; break;
case 'F': i = SC_FAILURE; break;
case 'H': i = SC_HALT; break;
case 'N':
i = (context->interpre_SignalCondition)[2] == 'V' ?
SC_NOVALUE : SC_NOTREADY;
break;
case 'S': i = SC_SYNTAX; break;
default: i = 0;
}
/* TODO: When CALL ON works, "DELAY" is possible too. */
if (i != 0)
Lscpy(ARGR,
((context->rexx_proc)[(context->rexx_rx_proc)].condition & i)
? "ON" : "OFF"
);
break;
/* case 'X': Lscpy(ARGR, SignalLine); break; */
default:
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
}
break;
case f_date:
Ldate(ARGR, option);
break;
case f_time:
Ltime(ARGR, option);
break;
case f_trace:
i = 0;
if ((context->rexx_proc)[(context->rexx_rx_proc)].interactive_trace)
LSTR(*ARGR)[i++] = '?';
switch ((context->rexx_proc)[(context->rexx_rx_proc)].trace) {
case all_trace:
LSTR(*ARGR)[i++] = 'A';
break;
case commands_trace:
LSTR(*ARGR)[i++] = 'C';
break;
case error_trace:
LSTR(*ARGR)[i++] = 'E';
break;
case failure_trace:
LSTR(*ARGR)[i++] = 'F';
break;
case intermediates_trace:
LSTR(*ARGR)[i++] = 'I';
break;
case labels_trace:
LSTR(*ARGR)[i++] = 'L';
break;
case normal_trace:
LSTR(*ARGR)[i++] = 'N';
break;
case off_trace:
LSTR(*ARGR)[i++] = 'O';
break;
case results_trace:
LSTR(*ARGR)[i++] = 'R';
break;
case scan_trace:
LSTR(*ARGR)[i++] = 'S';
break;
}
LTYPE(*ARGR) = LSTRING_TY;
LLEN(*ARGR) = i;
if (exist(1)) TraceSet(ARG1);
break;
case f_queued:
#if defined(__CMS__) || defined(__MVS) /* dw start */
Licpy(ARGR, StackQueued());
break;
#else
if (exist(1)) {
if (option == 'T') {
Licpy(ARGR, StackQueued());
break;
} else if (option == 'B') {
Licpy(ARGR, (context->rexxrxStackList).items);
break;
} else if (option == 'A') /* nothing */;
else
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
}
/* count all buffers */
items = 0;
for (qe = (context->rexxrxStackList).head; qe; qe = qe->next)
items += ((DQueue *) (qe->dat))->items;
Licpy(ARGR, items);
break;
#endif
default:
(context->lstring_Lerror)(ERR_INTERPRETER_FAILURE, 0);
} /* switch */
} /* R_C */
/* -------------------------------------------------------------- */
/* VARDUMP((symbol)(,'Depth'|'Hex'|'X')) */
/* returns the binary tree in the format */
/* var = "value" <cr> */
/* if depth is specified (only the fist char is significant) */
/* returns the result in the format. */
/* depth var = "value" <cr> */
/* -------------------------------------------------------------- */
void __CDECL
R_oSoS() {
int option = FALSE;
int found;
PBinLeaf leaf;
Variable *var;
Lstr str;
Context *context = (Context *) CMSGetPG();
if (ARGN > 2)
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
option = RVT_NOTHING;
if (ARGN == 2) {
L2STR(ARG2);
switch (LSTR(*ARG2)[0]) {
case 'D':
case 'd':
option = RVT_DEPTH;
break;
case 'H':
case 'X':
case 'h':
case 'x':
option = RVT_HEX;
break;
}
}
LZEROSTR(*ARGR);
if (ARG1 == NULL)
RxReadVarTree(ARGR, (context->rexx_proc)[(context->rexx_rx_proc)].scope,
NULL, option);
else {
if (Ldatatype(ARG1, 'S') == 0) return;
LINITSTR(str);
Lstrcpy(&str, ARG1);
Lupper(&str);
LASCIIZ(str);
leaf = RxVarFindName(
(context->rexx_proc)[(context->rexx_rx_proc)].scope, &str,
&found);
if (found == 0) return;
var = (Variable *) (leaf->value);
if (var->stem == NULL)
RxVar2Str(ARGR, leaf, option);
else
RxReadVarTree(ARGR, var->stem, &(leaf->key), option);
LFREESTR(str);
}
} /* R_oSoS */
/* -------------------------------------------------------------- */
/* ADDR(symbol[,[option][,[pool]]]) */
/* Returns the normalised address of the variable 'symbol' */
/* in the pool 'pool' (if exist) */
/* Option can be: */
/* 'Data' (default) the address of variables data */
/* 'Lstring' the lstring structure */
/* 'Variable' the address of variable structure */
/* (valid only for rexx pools) */
/* -------------------------------------------------------------- */
/* VALUE(name[,[newvalue][,[pool]]]) */
/* Return the value of variable 'name' */
/* if 'newvalue' exists then it sets this value to the var 'name */
/* if 'pool' exist then the function is performed on this */
/* external pool */
/* -------------------------------------------------------------- */
void __CDECL
R_SoSoS(int func) {
char response;
Context *context = (Context *) CMSGetPG();
if (!IN_RANGE(1, ARGN, 3)) (context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
get_s(1);
if (func == f_addr) { /* ADDR(...) */
int found, poolnum;
char opt = 'D';
PBinLeaf leaf;
Lstr str;
void *ptr = NULL;
long addr;
Context *context = (Context *) CMSGetPG();
/* translate to uppercase */
LINITSTR(str);
Lfx(&str, LLEN(*ARG1));
Lstrcpy(&str, ARG1);
Lupper(&str);
LASCIIZ(str);
if (exist(2)) {
L2STR(ARG2);
opt = (context->lstring_l2u)[(byte) LSTR(*ARG2)[0]];
}
if (exist(3)) {
poolnum = (int) Lrdint(ARG3);
if (poolnum < 0 || poolnum > (context->rexx_rx_proc))
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 37, ARG3);
} else
poolnum = (context->rexx_rx_proc);
leaf = RxVarFindName((context->rexx_proc)[poolnum].scope, &str, &found);
LFREESTR(str);
if (!found) {
Licpy(ARGR, -1);
return;
}
switch (opt) {
case 'D':
ptr = LSTR(*(LEAFVAL(leaf)));
break;
case 'L':
ptr = LEAFVAL(leaf);
break;
case 'V':
ptr = &(leaf->value);
break;
default:
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
}
#if defined(__BORLANDC__) && !defined(__WIN32__) && !defined(WCE)
addr = (((long)FP_SEG(ptr))<<4) + (long)FP_OFF(ptr);
#else
addr = (dword) ptr;
#endif
Licpy(ARGR, addr);
} else if (func == f_value) {
if (exist(3)) { /* An external pool? */
/* let external pool to handle the value */
L2STR(ARG3);
LZEROSTR(*ARGR);
response = RxPoolGet(ARG3, ARG1, ARGR);
if (response == 'F' && !exist(2))
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 36, ARG1);
else if (response == 'P')
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 37, ARG3);
if (!exist(2)) return;
/* Set the new value */
response = RxPoolSet(ARG3, ARG1, ARG2);
if (response == 'P')
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 37, ARG3);
else if (response == 'F')
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 36, ARG1);
} else {
Lstr str;
LINITSTR(str);
Lfx(&str, sizeof(dword));
Licpy(&str, (context->rexx_rx_proc));
response = RxPoolGet(&str, ARG1, ARGR);
if (exist(2))
response = RxPoolSet(&str, ARG1, ARG2);
LFREESTR(str);
}
}
} /* SoSoS */
/* -------------------------------------------------------------- */
/* ARG([n[,option]]) */
/* -------------------------------------------------------------- */
void __CDECL
R_arg() {
int a;
Context *context = (Context *) CMSGetPG();
RxProc *pr = &((context->rexx_proc)[(context->rexx_rx_proc)]);
switch (ARGN) {
case 0:
Licpy(ARGR, pr->arg.n);
break;
case 1:
a = (int) Lrdint(ARG1);
if (a < 1) (context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
if (a > MAXARGS || (pr->arg.a[a - 1] == NULL)) {
LZEROSTR(*ARGR);
} else
Lstrcpy(ARGR, pr->arg.a[a - 1]);
break;
case 2:
a = (int) Lrdint(ARG1);
L2STR(ARG2);
if (a < 1) (context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
if (a > MAXARGS)
if ((context->lstring_l2u)[(byte) LSTR(*ARG2)[0]] == 'E')
Licpy(ARGR, 0);
else if ((context->lstring_l2u)[(byte) LSTR(*ARG2)[0]] == 'O')
Licpy(ARGR, 1);
else (context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
else {
if ((context->lstring_l2u)[(byte) LSTR(*ARG2)[0]] == 'E')
Licpy(ARGR, pr->arg.a[a - 1] != NULL);
else if ((context->lstring_l2u)[(byte) LSTR(*ARG2)[0]] == 'O')
Licpy(ARGR, pr->arg.a[a - 1] == NULL);
else (context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
}
break;
default:
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
}
} /* R_arg */
/* -------------------------------------------------------------- */
/* DATATYPE(string(,type)) */
/* -------------------------------------------------------------- */
void __CDECL
R_datatype() {
char type = ' ';
Context *context = (Context *) CMSGetPG();
if (!IN_RANGE(1, ARGN, 2))
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
must_exist(1);
if (exist(2)) {
L2STR(ARG2);
if (!LLEN(*ARG2))
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
type = (context->lstring_l2u)[(byte) LSTR(*ARG2)[0]];
} else {
Lscpy(ARGR,
((LTYPE(*ARG1) == LSTRING_TY &&
_Lisnum(ARG1) == LSTRING_TY) ? "CHAR" : "NUM")
);
return;
}
if (type == 'T') { /* mine special type */
switch (LTYPE(*ARG1)) {
case LINTEGER_TY:
Lscpy(ARGR, "INTEGER");
break;
case LREAL_TY:
Lscpy(ARGR, "REAL");
break;
case LSTRING_TY:
Lscpy(ARGR, "STRING");
break;
default:
(context->lstring_Lerror)(ERR_INTERPRETER_FAILURE, 0);
}
return;
}
Licpy(ARGR, Ldatatype(ARG1, type));
} /* R_datatype */
#ifndef __CMS__
/* -------------------------------------------------------------- */
/* DROPBUF((num)) */
/* -------------------------------------------------------------- */
void __CDECL
R_dropbuf() {
long n = 1;
long items = 0;
Context *context = (Context *) CMSGetPG();
if (ARGN > 1)
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
get_oiv(1, n, 1)
if (n == 0)
Licpy(ARGR, StackQueued());
else {
for (; n > 0; n--) {
items += StackQueued();
if ((context->rexxrxStackList).items > 1)
DeleteStack();
else {
DQFlush(DQPEEK(&(context->rexxrxStackList)), _Lfree);
break;
}
}
Licpy(ARGR, items);
}
} /* R_dropbuf */
#endif
/* -------------------------------------------------------------- */
/* ERRORTEXT(n) */
/* -------------------------------------------------------------- */
void __CDECL
R_errortext() {
Context *context = (Context *) CMSGetPG();
if (ARGN != 1) (context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
must_exist(1);
Lerrortext(ARGR, (int) Lrdint(ARG1), 0, NULL);
} /* R_errortext */
/* -------------------------------------------------------------- */
/* INTR( num, reg-string ) */
/* executes a 80x86 soft-interrupt. */
/* num = interrupt number, and reg-string is a string */
/* in the format "ax=hex-num bx=hex-num ...." */
/* returns in the same format the registers and flags */
/* -------------------------------------------------------------- */
#if defined(__BORLANDC__) && !defined(__WIN32__) && !defined(WCE)
void __CDECL
R_intr( )
{
static char *s_reg[] = {
"AX=","BX=","CX=","DX=",
"BP=","SI=","DI=",
"DS=","ES=","FLAGS=" };
static char flags_str[]="C-P-A-ZSTIDO";
Lstr str;
int i,intno;
union {
struct REGPACK regpack;
unsigned regarray[10];
} reg;
char *s;
Context *context = (Context*)CMSGetPG();
if (ARGN != 2)
(context->lstring_Lerror)(ERR_INCORRECT_CALL,0);
must_exist(1);
intno = (int)Lrdint(ARG1);
if (!IN_RANGE(0,intno,0xFF))
(context->lstring_Lerror)(ERR_INCORRECT_CALL,0);
must_exist(2);
L2STR(ARG2);
LINITSTR(str);
Lspace(&str,ARG2,1,' ');
Lupper(&str);
LASCIIZ(str);
MEMSET(&(reg.regpack),0,sizeof(reg.regpack));
for (i=0; i<10; i++) {
s=strstr(LSTR(str),s_reg[i]);
if (s!=NULL) {
s+=3;
sscanf(s,"%X",®.regarray[i]);
}
}
intr(intno,®.regpack);
Lfx(ARGR,100);
LTYPE(*ARGR) = LSTRING_TY;
s=LSTR(*ARGR); *s='\0';
for (i=0; i<9; i++) {
sprintf(s,"%s%04X ",s_reg[i],reg.regarray[i]);
s += STRLEN(s);
}
STRCAT(s,s_reg[9]); s += STRLEN(s);
for (i=0; i<12; i++, reg.regpack.r_flags >>= 1)
if (reg.regpack.r_flags & 0x1)
*s++ = flags_str[i];
*s = '\0';
LLEN(*ARGR) = STRLEN(LSTR(*ARGR))-1;
LFREESTR(str);
} /* R_int */
/* -------------------------------------------------------------- */
/* PORT(port(,value)) */
/* if value is not specified then reads one byte from port */
/* and returns it in integer format (IN) */
/* if value exists then OUTs that value to the port. */
/* -------------------------------------------------------------- */
void __CDECL
R_port( )
{
long port;
int value;
Context *context = (Context*)CMSGetPG();
if (!IN_RANGE(1,ARGN,2))
(context->lstring_Lerror)(ERR_INCORRECT_CALL,0);
get_i(1,port);
if (exist(2)) {
value = (int)Lrdint(ARG2);
outp((int)port,value);
} else {
value = inp((int)port);
Licpy(ARGR, value);
}
} /* R_port */
#endif
/* -------------------------------------------------------------- */
/* MAX(number[,number]..]) */
/* -------------------------------------------------------------- */
void __CDECL
R_max() {
int i;
double r;
Context *context = (Context *) CMSGetPG();
if (!ARGN)
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
i = 0;
while ((i < ARGN) && ((context->rexxrxArg).a[i] == NULL)) i++;
if (i == MAXARGS) (context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
L2REAL(((context->rexxrxArg).a[i]));
r = LREAL(*((context->rexxrxArg).a[i]));
for (i++; i < ARGN; i++)
if ((context->rexxrxArg).a[i] != NULL) {
L2REAL(((context->rexxrxArg).a[i]));
r = MAX(r, LREAL(*((context->rexxrxArg).a[i])));
}
Lrcpy(ARGR, r);
} /* R_max */
/* -------------------------------------------------------------- */
/* MIN(number[,number]..]) */
/* -------------------------------------------------------------- */
void __CDECL
R_min() {
int i;
double r;
Context *context = (Context *) CMSGetPG();
if (!ARGN)
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
i = 0;
while ((i < ARGN) && ((context->rexxrxArg).a[i] == NULL)) i++;
if (i == MAXARGS) (context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
L2REAL(((context->rexxrxArg).a[i]));
r = LREAL(*((context->rexxrxArg).a[i]));
for (i++; i < ARGN; i++)
if ((context->rexxrxArg).a[i] != NULL) {
L2REAL(((context->rexxrxArg).a[i]));
r = MIN(r, LREAL(*((context->rexxrxArg).a[i])));
}
Lrcpy(ARGR, r);
} /* R_min */
/* -------------------------------------------------------------- */
/* RANDOM((min)(,(max)(,seed))) */
/* -------------------------------------------------------------- */
void __CDECL
R_random() {
long min, max;
static long seed;
static int sewed = 0;
Context *context = (Context *) CMSGetPG();
if (!IN_RANGE(0, ARGN, 3)) (context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
if (exist(1)) {
min = Lrdint(ARG1);
if (min < 0) (context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
} else
min = 0;
if (exist(2)) {
max = Lrdint(ARG2);
if (max < 0) (context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
} else
max = 999;
if (min > max) (context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
if (exist(3)) {
seed = Lrdint(ARG3);
if (seed < 0) (context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
srand((unsigned) seed);
sewed = 1;
} else if (sewed == 0) {
sewed = 1;
#ifndef WCE
seed = (time((time_t *) 0) % (3600 * 24));
#else
seed = GetTickCount();
#endif
srand((unsigned) seed);
}
Licpy(ARGR, (long) rand() % (max - min + 1) + min);
} /* R_random */
/* -------------------------------------------------------------- */
/* STORAGE((address(,(length)(,data)))) */
/* returns the current virtual machine size expressed as a */
/* hexadecimal string if no arguments are specified. */
/* Otherwise, returns length bytes from the user's memory */
/* starting at address. The length is in decimal; */
/* the default is 1 byte. The address is a hexadecimal number.*/
/* If data is specified, after the "old" value has been */
/* retrieved, storage starting at address is overwritten */
/* with data (the length argument has no effect on this). */
/* */
/* With OPTIONS STORAGE_DECIMAL set, the address is a */
/* decimal value. */
/* -------------------------------------------------------------- */
void __CDECL
R_storage() {
void *ptr = NULL;
long adr;
#if defined(__BORLANDC__) && !defined(__WIN32__) && !defined(WCE)
unsigned seg,ofs;
#endif
size_t length = 1;
int i;
Context *context = (Context *) CMSGetPG();
if (ARGN > 3)
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
if (ARGN == 0) {
#ifndef WCE
# if defined(__BORLANDC__) && !defined(__WIN32__)
Licpy(ARGR,farcoreleft()); /* return the free memory left */
# else
#ifdef __CMS__
CMSSTORE(ARGR);
#else
Licpy(ARGR, 0);
#endif
# endif
#else
STORE_INFORMATION si;
GetStoreInformation(&si);
Licpy(ARGR,si.dwFreeSize);
#endif
return;
}
if (exist(1)) {
if (CHECK_OPT(OPT_STORAGE_DECIMAL)) {
/* Argument is decimal and not hex */
adr = Lrdint(ARG1);
} else {
adr = 0;
get_s(1);
for (i=0; i < LLEN(*ARG1); i++) {
if (!ISXDIGIT(LSTR(*ARG1)[i]))
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
adr = (adr * 16) + HEXVAL(LSTR(*ARG1)[i]);
}
}
if (adr < 0)
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
#if defined(__BORLANDC__) && !defined(__WIN32__) && !defined(WCE)
seg = (unsigned)((adr >> 4) & 0xFFFF);
ofs = (unsigned)(adr & 0x000F);
ptr = MK_FP(seg,ofs);
#else
ptr = (void *) adr;
#endif
} else
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
if (exist(2)) {
adr = Lrdint(ARG2);
if (adr <= 0)
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
length = (size_t) adr;
}
Lfx(ARGR, length);
LTYPE(*ARGR) = LSTRING_TY;
LLEN(*ARGR) = length;
MEMCPY(LSTR(*ARGR), ptr, length);
if (exist(3)) {
L2STR(ARG3); /*// !!!! Always is converted to string !!!! */
MEMCPY(ptr, LSTR(*ARG3), LLEN(*ARG3));
}
} /* R_storage */
/* -------------------------------------------------------------- */
/* SOURCELINE([n]) */
/* return the number of lines in the program, or the nth */
/* line. */
/* -------------------------------------------------------------- */
void __CDECL
R_sourceline() {
long l, sl;
int i;
char *c, *co;
RxFile *rxf;
Context *context = (Context *) CMSGetPG();
if (ARGN > 1)
(context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
get_oi(1, l);
if (l == 0) { /* count the lines of the program */
i = 0;
rxf = (context->compileCompileClause)[0].fptr;
while (rxf == (context->compileCompileClause)[i].fptr
&& (context->compileCompileClause)[i + 1].line >=
(context->compileCompileClause)[i].line) {
i++;
l = (context->compileCompileClause)[i].line;
}
i--;
l = (context->compileCompileClause)[i].line;
c = (context->compileCompileClause)[i].ptr;
while (*c)
if (*c++ == '\n') l++;
l -= 2; /* remove the last two new lines */
Licpy(ARGR, l);
} else {
if (l > 1) {
rxf = (context->compileCompileClause)[0].fptr;
for (i = 0; rxf == (context->compileCompileClause)[i].fptr
&& (context->compileCompileClause)[i + 1].line >=
(context->compileCompileClause)[i].line; i++) {
if ((context->compileCompileClause)[i].line == l) {
c = (context->compileCompileClause)[i].ptr;
while (*c != '\n')
c--;
c++;
goto linefound;
} else if ((context->compileCompileClause)[i].line > l) {
if (i > 0) {
i--;
c = (context->compileCompileClause)[i].ptr;
sl = (context->compileCompileClause)[i].line;
} else {
c = LSTR(rxf->file);
sl = 1;
}
while (sl < l) {
/* skip until eol */
while (*c != '\n') c++;
sl++;
c++;
}
goto linefound;
}
}
/* try to search inside a commend, if exists any
at the end of the program */
i--;
sl = (context->compileCompileClause)[i].line;
c = (context->compileCompileClause)[i].ptr;
while (*c && l > sl) {
if (*c == '\n') sl++;
c++;
}
if (*c) goto linefound;
LZEROSTR(*ARGR);
return;
} else
c = LSTR(((context->compileCompileClause)[0].fptr)->file);
linefound:
for (co = c; *co != '\n'; co++) /* do nothing */;;
l = (char huge *) co - (char huge *) c;
Lfx(ARGR, (size_t) l);
LTYPE(*ARGR) = LSTRING_TY;
LLEN(*ARGR) = (size_t) l;
MEMCPY(LSTR(*ARGR), c, (size_t) l);
}
} /* R_sourceline */
#ifdef __CMS__
void __CDECL
VM_O(int func) {
Context *context = (Context *) CMSGetPG();
switch (func) {
case f_cmsflag:
if (ARGN != 1) (context->lstring_Lerror)(ERR_INCORRECT_CALL, 0);
L2STR(ARG1);
CMSFLAG(ARGR, ARG1);
break;
case f_cmsline:
CMSLINE(ARGR);
break;
case f_cmsuser: