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inform7/inform6/Inform6/arrays.c
Graham Nelson c506ff967e Updated inform6 to v6.41
2022-07-24 11:10:45 +01:00

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/* ------------------------------------------------------------------------- */
/* "arrays" : Parses array declarations and constructs arrays from them; */
/* likewise global variables, which are in some ways a */
/* simpler form of the same thing. */
/* */
/* Part of Inform 6.41 */
/* copyright (c) Graham Nelson 1993 - 2022 */
/* */
/* ------------------------------------------------------------------------- */
#include "header.h"
/* ------------------------------------------------------------------------- */
/* Arrays defined below: */
/* */
/* uchar dynamic_array_area[] Initial values for the bytes of */
/* the dynamic array area */
/* uchar static_array_area[] Initial values for the bytes of */
/* the static array area */
/* int32 global_initial_value[n] The initialised value of the nth */
/* global variable (counting 0 - 239, */
/* or higher for Glulx) */
/* */
/* The "dynamic array area" is the Z-machine area holding the current */
/* values of the global variables (in 240x2 = 480 bytes) followed by any */
/* (dynamic) arrays which may be defined. */
/* */
/* In Glulx, we don't keep the global variables in dynamic_array_area. */
/* Array data starts at the start. */
/* */
/* We can also store arrays (but not globals) into static memory (ROM). */
/* The storage for these goes, unsurprisingly, into static_array_area. */
/* ------------------------------------------------------------------------- */
uchar *dynamic_array_area; /* See above */
memory_list dynamic_array_area_memlist;
int dynamic_array_area_size; /* Size in bytes */
int32 *global_initial_value; /* Allocated to no_globals */
static memory_list global_initial_value_memlist;
int no_globals; /* Number of global variables used
by the programmer (Inform itself
uses the top seven -- but these do
not count) */
/* In Glulx, Inform uses the bottom
ten. */
uchar *static_array_area;
memory_list static_array_area_memlist;
int static_array_area_size;
int no_arrays;
arrayinfo *arrays;
static memory_list arrays_memlist;
static int array_entry_size, /* 1 for byte array, 2 for word array */
array_base; /* Offset in dynamic array area of the
array being constructed. During the
same time, dynamic_array_area_size
is the offset of the initial entry
in the array: so for "table" and
"string" arrays, these numbers are
different (by 2 and 1 bytes resp) */
/* In Glulx, of course, that will be
4 instead of 2. */
static memory_list current_array_name; /* The name of the global or array
currently being compiled. */
/* Complete the array. Fill in the size field (if it has one) and
advance foo_array_area_size.
*/
extern void finish_array(int32 i, int is_static)
{
uchar *area;
int area_size;
if (!is_static) {
ensure_memory_list_available(&dynamic_array_area_memlist, dynamic_array_area_size+array_base+1*array_entry_size);
area = dynamic_array_area;
area_size = dynamic_array_area_size;
}
else {
ensure_memory_list_available(&static_array_area_memlist, static_array_area_size+array_base+1*array_entry_size);
area = static_array_area;
area_size = static_array_area_size;
}
if (i == 0) {
error("An array must have at least one entry");
}
/* Write the array size into the 0th byte/word of the array, if it's
a "table" or "string" array */
if (!glulx_mode) {
if (array_base != area_size)
{ if (area_size-array_base==2)
{ area[array_base] = i/256;
area[array_base+1] = i%256;
}
else
{ if (i>=256)
error("A 'string' array can have at most 256 entries");
area[array_base] = i;
}
}
}
else {
if (array_base != area_size)
{ if (area_size-array_base==4)
{
area[array_base] = (i >> 24) & 0xFF;
area[array_base+1] = (i >> 16) & 0xFF;
area[array_base+2] = (i >> 8) & 0xFF;
area[array_base+3] = (i) & 0xFF;
}
else
{ if (i>=256)
error("A 'string' array can have at most 256 entries");
area[array_base] = i;
}
}
}
/* Move on the static/dynamic array size so that it now points to the
next available free space */
if (!is_static) {
dynamic_array_area_size += i*array_entry_size;
}
else {
static_array_area_size += i*array_entry_size;
}
}
/* Fill in array entry i (in either the static or dynamic area).
When this is called, foo_array_area_size is the end of the previous
array; we're writing after that.
*/
extern void array_entry(int32 i, int is_static, assembly_operand VAL)
{
uchar *area;
int area_size;
if (!is_static) {
ensure_memory_list_available(&dynamic_array_area_memlist, dynamic_array_area_size+(i+1)*array_entry_size);
area = dynamic_array_area;
area_size = dynamic_array_area_size;
}
else {
ensure_memory_list_available(&static_array_area_memlist, static_array_area_size+(i+1)*array_entry_size);
area = static_array_area;
area_size = static_array_area_size;
}
if (!glulx_mode) {
/* Array entry i (initial entry has i=0) is set to Z-machine value j */
if (array_entry_size==1)
{ area[area_size+i] = (VAL.value)%256;
if (VAL.marker != 0)
error("Entries in byte arrays and strings must be known constants");
/* If the entry is too large for a byte array, issue a warning
and truncate the value */
else
if (VAL.value >= 256)
warning("Entry in '->', 'string' or 'buffer' array not in range 0 to 255");
}
else
{
int32 addr = area_size + 2*i;
area[addr] = (VAL.value)/256;
area[addr+1] = (VAL.value)%256;
if (VAL.marker != 0) {
if (!is_static) {
backpatch_zmachine(VAL.marker, DYNAMIC_ARRAY_ZA,
addr);
}
else {
backpatch_zmachine(VAL.marker, STATIC_ARRAY_ZA,
addr);
}
}
}
}
else {
/* Array entry i (initial entry has i=0) is set to value j */
if (array_entry_size==1)
{ area[area_size+i] = (VAL.value) & 0xFF;
if (VAL.marker != 0)
error("Entries in byte arrays and strings must be known constants");
/* If the entry is too large for a byte array, issue a warning
and truncate the value */
else
if (VAL.value >= 256)
warning("Entry in '->', 'string' or 'buffer' array not in range 0 to 255");
}
else if (array_entry_size==4)
{
int32 addr = area_size + 4*i;
area[addr] = (VAL.value >> 24) & 0xFF;
area[addr+1] = (VAL.value >> 16) & 0xFF;
area[addr+2] = (VAL.value >> 8) & 0xFF;
area[addr+3] = (VAL.value) & 0xFF;
if (VAL.marker != 0) {
if (!is_static) {
backpatch_zmachine(VAL.marker, DYNAMIC_ARRAY_ZA,
addr);
}
else {
/* We can't use backpatch_zmachine() because that only applies to RAM. Instead we add an entry to staticarray_backpatch_table.
A backpatch entry is five bytes: *_MV followed by the array offset (in static array area). */
if (bpatch_trace_setting >= 2)
printf("BP added: MV %d staticarray %04x\n", VAL.marker, addr);
ensure_memory_list_available(&staticarray_backpatch_table_memlist, staticarray_backpatch_size+5);
staticarray_backpatch_table[staticarray_backpatch_size++] = VAL.marker;
staticarray_backpatch_table[staticarray_backpatch_size++] = ((addr >> 24) & 0xFF);
staticarray_backpatch_table[staticarray_backpatch_size++] = ((addr >> 16) & 0xFF);
staticarray_backpatch_table[staticarray_backpatch_size++] = ((addr >> 8) & 0xFF);
staticarray_backpatch_table[staticarray_backpatch_size++] = (addr & 0xFF);
}
}
}
else
{
error("Somehow created an array of shorts");
}
}
}
/* ------------------------------------------------------------------------- */
/* Global and Array directives. */
/* */
/* Global <variablename> [ [=] <value> ] */
/* */
/* Array <arrayname> [static] <array specification> */
/* */
/* where an array specification is: */
/* */
/* | -> | <number-of-entries> */
/* | --> | <entry-1> ... <entry-n> */
/* | string | [ <entry-1> [;] <entry-2> ... <entry-n> ]; */
/* | table */
/* | buffer */
/* */
/* The "static" keyword (arrays only) places the array in static memory. */
/* */
/* ------------------------------------------------------------------------- */
extern void set_variable_value(int i, int32 v)
{
/* This isn't currently called to create a new global, but it has
been used that way within living memory. So we call ensure. */
ensure_memory_list_available(&global_initial_value_memlist, i+1);
global_initial_value[i]=v;
}
/* There are four ways to initialise arrays: */
#define UNSPECIFIED_AI -1
#define NULLS_AI 0
#define DATA_AI 1
#define ASCII_AI 2
#define BRACKET_AI 3
extern void make_global()
{
int32 i;
int name_length;
assembly_operand AO;
int32 globalnum;
int32 global_symbol;
debug_location_beginning beginning_debug_location =
get_token_location_beginning();
directive_keywords.enabled = FALSE;
get_next_token();
i = token_value;
global_symbol = i;
name_length = strlen(token_text) + 1;
ensure_memory_list_available(&current_array_name, name_length);
strncpy(current_array_name.data, token_text, name_length);
if (!glulx_mode) {
if ((token_type==SYMBOL_TT) && (symbols[i].type==GLOBAL_VARIABLE_T)
&& (symbols[i].value >= LOWEST_SYSTEM_VAR_NUMBER)) {
globalnum = symbols[i].value - MAX_LOCAL_VARIABLES;
goto RedefinitionOfSystemVar;
}
}
else {
if ((token_type==SYMBOL_TT) && (symbols[i].type==GLOBAL_VARIABLE_T)) {
globalnum = symbols[i].value - MAX_LOCAL_VARIABLES;
goto RedefinitionOfSystemVar;
}
}
if (token_type != SYMBOL_TT)
{ discard_token_location(beginning_debug_location);
ebf_error("new global variable name", token_text);
panic_mode_error_recovery(); return;
}
if (!(symbols[i].flags & UNKNOWN_SFLAG))
{ discard_token_location(beginning_debug_location);
ebf_symbol_error("new global variable name", token_text, typename(symbols[i].type), symbols[i].line);
panic_mode_error_recovery(); return;
}
if (symbols[i].flags & USED_SFLAG)
error_named("Variable must be defined before use:", token_text);
directive_keywords.enabled = TRUE;
get_next_token();
directive_keywords.enabled = FALSE;
if ((token_type==DIR_KEYWORD_TT)&&(token_value==STATIC_DK)) {
error("Global variables cannot be static");
}
else {
put_token_back();
}
if (!glulx_mode && no_globals==233)
{ discard_token_location(beginning_debug_location);
error("All 233 global variables already declared");
panic_mode_error_recovery();
return;
}
globalnum = no_globals;
ensure_memory_list_available(&variables_memlist, MAX_LOCAL_VARIABLES+no_globals+1);
variables[MAX_LOCAL_VARIABLES+no_globals].token = i;
variables[MAX_LOCAL_VARIABLES+no_globals].usage = FALSE;
assign_symbol(i, MAX_LOCAL_VARIABLES+no_globals, GLOBAL_VARIABLE_T);
ensure_memory_list_available(&global_initial_value_memlist, no_globals+1);
global_initial_value[no_globals++]=0;
directive_keywords.enabled = TRUE;
RedefinitionOfSystemVar:
get_next_token();
if ((token_type == SEP_TT) && (token_value == SEMICOLON_SEP))
{
/* No initial value. */
put_token_back();
if (debugfile_switch)
{
char *global_name = current_array_name.data;
debug_file_printf("<global-variable>");
debug_file_printf("<identifier>%s</identifier>", global_name);
debug_file_printf("<address>");
write_debug_global_backpatch(symbols[global_symbol].value);
debug_file_printf("</address>");
write_debug_locations
(get_token_location_end(beginning_debug_location));
debug_file_printf("</global-variable>");
}
return;
}
if (((token_type==SEP_TT)&&(token_value==ARROW_SEP))
|| ((token_type==SEP_TT)&&(token_value==DARROW_SEP))
|| ((token_type==DIR_KEYWORD_TT)&&(token_value==STRING_DK))
|| ((token_type==DIR_KEYWORD_TT)&&(token_value==TABLE_DK))
|| ((token_type==DIR_KEYWORD_TT)&&(token_value==BUFFER_DK)))
{
error("use 'Array' to define arrays, not 'Global'");
return;
}
/* Skip "=" if present. */
if (!((token_type == SEP_TT) && (token_value == SETEQUALS_SEP)))
put_token_back();
AO = parse_expression(CONSTANT_CONTEXT);
if (!glulx_mode) {
if (AO.marker != 0)
backpatch_zmachine(AO.marker, DYNAMIC_ARRAY_ZA,
2*globalnum);
}
else {
if (AO.marker != 0)
backpatch_zmachine(AO.marker, GLOBALVAR_ZA,
4*globalnum);
}
if (globalnum < 0 || globalnum >= global_initial_value_memlist.count)
compiler_error("Globalnum out of range");
global_initial_value[globalnum] = AO.value;
if (debugfile_switch)
{
char *global_name = current_array_name.data;
debug_file_printf("<global-variable>");
debug_file_printf("<identifier>%s</identifier>", global_name);
debug_file_printf("<address>");
write_debug_global_backpatch(symbols[global_symbol].value);
debug_file_printf("</address>");
write_debug_locations
(get_token_location_end(beginning_debug_location));
debug_file_printf("</global-variable>");
}
}
extern void make_array()
{
int32 i;
int name_length;
int array_type, data_type;
int is_static = FALSE;
assembly_operand AO;
int extraspace;
int32 global_symbol;
debug_location_beginning beginning_debug_location =
get_token_location_beginning();
directive_keywords.enabled = FALSE;
get_next_token();
i = token_value;
global_symbol = i;
name_length = strlen(token_text) + 1;
ensure_memory_list_available(&current_array_name, name_length);
strncpy(current_array_name.data, token_text, name_length);
if (token_type != SYMBOL_TT)
{ discard_token_location(beginning_debug_location);
ebf_error("new array name", token_text);
panic_mode_error_recovery(); return;
}
if (!(symbols[i].flags & UNKNOWN_SFLAG))
{ discard_token_location(beginning_debug_location);
ebf_symbol_error("new array name", token_text, typename(symbols[i].type), symbols[i].line);
panic_mode_error_recovery(); return;
}
directive_keywords.enabled = TRUE;
get_next_token();
directive_keywords.enabled = FALSE;
if ((token_type==DIR_KEYWORD_TT)&&(token_value==STATIC_DK)) {
is_static = TRUE;
}
else {
put_token_back();
}
if (!is_static) {
assign_symbol(i, dynamic_array_area_size, ARRAY_T);
}
else {
assign_symbol(i, static_array_area_size, STATIC_ARRAY_T);
}
ensure_memory_list_available(&arrays_memlist, no_arrays+1);
arrays[no_arrays].symbol = i;
directive_keywords.enabled = TRUE;
get_next_token();
if ((token_type == SEP_TT) && (token_value == SEMICOLON_SEP))
{
discard_token_location(beginning_debug_location);
ebf_error("array definition", token_text);
put_token_back();
return;
}
array_type = BYTE_ARRAY; data_type = UNSPECIFIED_AI;
/* The keywords "data", "initial", and "initstr" used to be accepted
here -- but only in a Global directive, not Array. The Global directive
no longer calls here, so those keywords are now (more) obsolete.
*/
if ((token_type==SEP_TT)&&(token_value==ARROW_SEP))
array_type = BYTE_ARRAY;
else if ((token_type==SEP_TT)&&(token_value==DARROW_SEP))
array_type = WORD_ARRAY;
else if ((token_type==DIR_KEYWORD_TT)&&(token_value==STRING_DK))
array_type = STRING_ARRAY;
else if ((token_type==DIR_KEYWORD_TT)&&(token_value==TABLE_DK))
array_type = TABLE_ARRAY;
else if ((token_type==DIR_KEYWORD_TT)&&(token_value==BUFFER_DK))
array_type = BUFFER_ARRAY;
else
{ discard_token_location(beginning_debug_location);
ebf_error
("'->', '-->', 'string', 'table' or 'buffer'", token_text);
panic_mode_error_recovery();
return;
}
array_entry_size=1;
if ((array_type==WORD_ARRAY) || (array_type==TABLE_ARRAY))
array_entry_size=WORDSIZE;
get_next_token();
if ((token_type == SEP_TT) && (token_value == SEMICOLON_SEP))
{ discard_token_location(beginning_debug_location);
error("No array size or initial values given");
put_token_back();
return;
}
switch(data_type)
{ case UNSPECIFIED_AI:
if ((token_type == SEP_TT) && (token_value == OPEN_SQUARE_SEP))
data_type = BRACKET_AI;
else
{ data_type = NULLS_AI;
if (token_type == DQ_TT) data_type = ASCII_AI;
get_next_token();
if (!((token_type == SEP_TT) && (token_value == SEMICOLON_SEP)))
data_type = DATA_AI;
put_token_back();
put_token_back();
}
break;
case NULLS_AI: obsolete_warning("use '->' instead of 'data'"); break;
case DATA_AI: obsolete_warning("use '->' instead of 'initial'"); break;
case ASCII_AI: obsolete_warning("use '->' instead of 'initstr'"); break;
}
/* Leave room to write the array size in later, if string/table array */
extraspace = 0;
if ((array_type==STRING_ARRAY) || (array_type==TABLE_ARRAY))
extraspace += array_entry_size;
if (array_type==BUFFER_ARRAY)
extraspace += WORDSIZE;
if (!is_static) {
array_base = dynamic_array_area_size;
dynamic_array_area_size += extraspace;
}
else {
array_base = static_array_area_size;
static_array_area_size += extraspace;
}
arrays[no_arrays].type = array_type;
arrays[no_arrays].loc = is_static;
/* Note that, from this point, we must continue through finish_array().
Exiting this routine on error causes problems. */
switch(data_type)
{
case NULLS_AI:
AO = parse_expression(CONSTANT_CONTEXT);
CalculatedArraySize:
if (AO.marker != 0)
{ error("Array sizes must be known now, not defined later");
break;
}
if (!glulx_mode) {
if ((AO.value <= 0) || (AO.value >= 32768))
{ error("An array must have between 1 and 32767 entries");
AO.value = 1;
}
}
else {
if (AO.value <= 0 || (AO.value & 0x80000000))
{ error("An array may not have 0 or fewer entries");
AO.value = 1;
}
}
{ for (i=0; i<AO.value; i++) array_entry(i, is_static, zero_operand);
}
break;
case DATA_AI:
/* In this case the array is initialised to the sequence of
constant values supplied on the same line */
i=0;
do
{
/* This isn't the start of a statement, but it's safe to
release token texts anyway. Expressions in an array
list are independent of each other. */
release_token_texts();
get_next_token();
if ((token_type == SEP_TT) && (token_value == SEMICOLON_SEP))
break;
if ((token_type == SEP_TT)
&& ((token_value == OPEN_SQUARE_SEP)
|| (token_value == CLOSE_SQUARE_SEP)))
{ discard_token_location(beginning_debug_location);
error("Missing ';' to end the initial array values "
"before \"[\" or \"]\"");
}
put_token_back();
AO = parse_expression(ARRAY_CONTEXT);
if (i == 0)
{ get_next_token();
put_token_back();
if ((token_type == SEP_TT)
&& (token_value == SEMICOLON_SEP))
{ data_type = NULLS_AI;
goto CalculatedArraySize;
}
}
array_entry(i, is_static, AO);
i++;
} while (TRUE);
put_token_back();
break;
case ASCII_AI:
/* In this case the array is initialised to the ASCII values of
the characters of a given "quoted string" */
get_next_token();
if (token_type != DQ_TT)
{ ebf_error("literal text in double-quotes", token_text);
token_text = "error";
}
{ assembly_operand chars;
int j;
INITAO(&chars);
for (i=0,j=0; token_text[j]!=0; i++,j+=textual_form_length)
{
int32 unicode; int zscii;
unicode = text_to_unicode(token_text+j);
if (glulx_mode)
{
if (array_entry_size == 1 && (unicode < 0 || unicode >= 256))
{
error("Unicode characters beyond Latin-1 cannot be used in a byte array");
}
else
{
chars.value = unicode;
}
}
else /* Z-code */
{
zscii = unicode_to_zscii(unicode);
if ((zscii != 5) && (zscii < 0x100)) chars.value = zscii;
else
{ unicode_char_error("Character can only be used if declared in \
advance as part of 'Zcharacter table':", unicode);
chars.value = '?';
}
}
chars.marker = 0;
set_constant_ot(&chars);
array_entry(i, is_static, chars);
}
}
break;
case BRACKET_AI:
/* In this case the array is initialised to the sequence of
constant values given over a whole range of compiler-lines,
between square brackets [ and ] */
i = 0;
while (TRUE)
{
/* This isn't the start of a statement, but it's safe to
release token texts anyway. Expressions in an array
list are independent of each other. */
release_token_texts();
get_next_token();
if ((token_type == SEP_TT) && (token_value == SEMICOLON_SEP))
continue;
if ((token_type == SEP_TT) && (token_value == CLOSE_SQUARE_SEP))
break;
if ((token_type == SEP_TT) && (token_value == OPEN_SQUARE_SEP))
{ /* Minimal error recovery: we assume that a ] has
been missed, and the programmer is now starting
a new routine */
ebf_error("']'", token_text);
put_token_back(); break;
}
put_token_back();
array_entry(i, is_static, parse_expression(ARRAY_CONTEXT));
i++;
}
}
finish_array(i, is_static);
if (debugfile_switch)
{
int32 new_area_size;
char *global_name = current_array_name.data;
debug_file_printf("<array>");
debug_file_printf("<identifier>%s</identifier>", global_name);
debug_file_printf("<value>");
write_debug_array_backpatch(symbols[global_symbol].value);
debug_file_printf("</value>");
new_area_size = (!is_static ? dynamic_array_area_size : static_array_area_size);
debug_file_printf
("<byte-count>%d</byte-count>",
new_area_size - array_base);
debug_file_printf
("<bytes-per-element>%d</bytes-per-element>",
array_entry_size);
debug_file_printf
("<zeroth-element-holds-length>%s</zeroth-element-holds-length>",
(array_type == STRING_ARRAY || array_type == TABLE_ARRAY) ?
"true" : "false");
get_next_token();
write_debug_locations(get_token_location_end(beginning_debug_location));
put_token_back();
debug_file_printf("</array>");
}
if ((array_type==BYTE_ARRAY) || (array_type==WORD_ARRAY)) i--;
if (array_type==BUFFER_ARRAY) i+=WORDSIZE-1;
arrays[no_arrays++].size = i;
}
extern int32 begin_table_array(void)
{
/* The "box" statement needs to be able to construct table
arrays of strings like this. (Static data, but we create a dynamic
array for maximum backwards compatibility.) */
array_base = dynamic_array_area_size;
array_entry_size = WORDSIZE;
/* Leave room to write the array size in later */
dynamic_array_area_size += array_entry_size;
return array_base;
}
extern int32 begin_word_array(void)
{
/* The "random(a, b, ...)" function needs to be able to construct
word arrays like this. (Static data, but we create a dynamic
array for maximum backwards compatibility.) */
array_base = dynamic_array_area_size;
array_entry_size = WORDSIZE;
return array_base;
}
/* ========================================================================= */
/* Data structure management routines */
/* ------------------------------------------------------------------------- */
extern void init_arrays_vars(void)
{ dynamic_array_area = NULL;
static_array_area = NULL;
arrays = NULL;
global_initial_value = NULL;
variables = NULL;
}
extern void arrays_begin_pass(void)
{
int ix, totalvar;
no_arrays = 0;
if (!glulx_mode) {
no_globals = 0;
/* The compiler-defined globals start at 239 and go down, so
we need to initialize the entire list from the start. */
totalvar = MAX_ZCODE_GLOBAL_VARS;
}
else {
/* The compiler-defined globals run from 0 to 10. */
no_globals = 11;
totalvar = no_globals;
}
ensure_memory_list_available(&global_initial_value_memlist, totalvar);
for (ix=0; ix<totalvar; ix++) {
global_initial_value[ix] = 0;
}
ensure_memory_list_available(&variables_memlist, MAX_LOCAL_VARIABLES+totalvar);
for (ix=0; ix<MAX_LOCAL_VARIABLES+totalvar; ix++) {
variables[ix].token = 0;
variables[ix].usage = FALSE;
}
dynamic_array_area_size = 0;
if (!glulx_mode) {
int ix;
/* This initial segment of dynamic_array_area is never used. It's
notionally space for the global variables, but that data is
kept in the global_initial_value array. Nonetheless, all the
Z-compiler math is set up with the idea that arrays start at
WORDSIZE * MAX_ZCODE_GLOBAL_VARS, so we need the blank segment.
*/
dynamic_array_area_size = WORDSIZE * MAX_ZCODE_GLOBAL_VARS;
ensure_memory_list_available(&dynamic_array_area_memlist, dynamic_array_area_size);
for (ix=0; ix<WORDSIZE * MAX_ZCODE_GLOBAL_VARS; ix++)
dynamic_array_area[ix] = 0;
}
static_array_area_size = 0;
}
extern void arrays_allocate_arrays(void)
{
initialise_memory_list(&dynamic_array_area_memlist,
sizeof(uchar), 10000, (void**)&dynamic_array_area,
"dynamic array data");
initialise_memory_list(&static_array_area_memlist,
sizeof(uchar), 0, (void**)&static_array_area,
"static array data");
initialise_memory_list(&arrays_memlist,
sizeof(arrayinfo), 64, (void**)&arrays,
"array info");
initialise_memory_list(&global_initial_value_memlist,
sizeof(int32), 200, (void**)&global_initial_value,
"global variable values");
initialise_memory_list(&current_array_name,
sizeof(char), MAX_IDENTIFIER_LENGTH+1, NULL,
"array name currently being defined");
}
extern void arrays_free_arrays(void)
{
deallocate_memory_list(&dynamic_array_area_memlist);
deallocate_memory_list(&static_array_area_memlist);
deallocate_memory_list(&arrays_memlist);
deallocate_memory_list(&global_initial_value_memlist);
deallocate_memory_list(&current_array_name);
}
/* ========================================================================= */
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