void ficl_taskSpawn(ficlVm *vm)
{
int tNameLen;
char *tName;
int priority;
int flags;
int stackSize;
unsigned command;
char *taskName;
FICL_STACK_CHECK(vm->dataStack,6,0);
tNameLen = ficlStackPopInteger(vm->dataStack);
tName = ficlStackPopPointer(vm->dataStack);
priority = ficlStackPopInteger(vm->dataStack);
flags = ficlStackPopInteger(vm->dataStack);
stackSize = ficlStackPopInteger(vm->dataStack);
command = ficlStackPopUnsigned(vm->dataStack);
if (simon_system == NULL)
simon_boot(NULL);
taskName = malloc(strlen(tName)+1);
strcpy(taskName,tName);
taskSpawn(taskName,priority,flags,stackSize,
spawn_helper,command,(int)taskName,0,0,0,0,0,0,0,0);
}
static void ficlPrimitiveRenameFile(ficlVm *vm) /* ( c-addr1 u1 c-addr2 u2 -- ior ) */
{
int length;
void *address;
char *from;
char *to;
length = ficlStackPopInteger(vm->dataStack);
address = (void *)ficlStackPopPointer(vm->dataStack);
to = (char *)malloc(length + 1);
memcpy(to, address, length);
to[length] = 0;
length = ficlStackPopInteger(vm->dataStack);
address = (void *)ficlStackPopPointer(vm->dataStack);
from = (char *)malloc(length + 1);
memcpy(from, address, length);
from[length] = 0;
pushIor(vm, !rename(from, to));
free(from);
free(to);
}
static void ficl_sysDcrEbcSet(ficlVm *vm)
{
uint32_t addr, val;
FICL_STACK_CHECK(vm->dataStack,2,0);
addr = ficlStackPopInteger(vm->dataStack);
val = ficlStackPopInteger(vm->dataStack);
sysDcrEbcSet(addr,val);
}
static void ficlFileOpen(ficlVm *vm, char *writeMode) /* ( c-addr u fam -- fileid ior ) */
{
int fam = ficlStackPopInteger(vm->dataStack);
int length = ficlStackPopInteger(vm->dataStack);
void *address = (void *)ficlStackPopPointer(vm->dataStack);
char mode[4];
FILE *f;
char *filename = (char *)malloc(length + 1);
memcpy(filename, address, length);
filename[length] = 0;
*mode = 0;
switch (FICL_FAM_OPEN_MODE(fam))
{
case 0:
ficlStackPushPointer(vm->dataStack, NULL);
ficlStackPushInteger(vm->dataStack, EINVAL);
goto EXIT;
case FICL_FAM_READ:
strcat(mode, "r");
break;
case FICL_FAM_WRITE:
strcat(mode, writeMode);
break;
case FICL_FAM_READ | FICL_FAM_WRITE:
strcat(mode, writeMode);
strcat(mode, "+");
break;
}
strcat(mode, (fam & FICL_FAM_BINARY) ? "b" : "t");
f = fopen(filename, mode);
if (f == NULL)
ficlStackPushPointer(vm->dataStack, NULL);
else
{
ficlFile *ff = (ficlFile *)malloc(sizeof(ficlFile));
strcpy(ff->filename, filename);
ff->f = f;
ficlStackPushPointer(vm->dataStack, ff);
fseek(f, 0, SEEK_SET);
}
pushIor(vm, f != NULL);
EXIT:
free(filename);
}
static void ficlPrimitiveResizeFile(ficlVm *vm) /* ( ud fileid -- ior ) */
{
ficlFile *ff = (ficlFile *)ficlStackPopPointer(vm->dataStack);
size_t ud = (size_t)ficlStackPopInteger(vm->dataStack);
pushIor(vm, ficlFileTruncate(ff, ud) == 0);
}
static void ficlPrimitiveRepositionFile(ficlVm *vm) /* ( ud fileid -- ior ) */
{
ficlFile *ff = (ficlFile *)ficlStackPopPointer(vm->dataStack);
size_t ud = (size_t)ficlStackPopInteger(vm->dataStack);
pushIor(vm, fseek(ff->f, ud, SEEK_SET) == 0);
}
static void ficl_sysDcrCr0Set(ficlVm *vm)
{
uint32_t val;
FICL_STACK_CHECK(vm->dataStack, 1, 0);
val = ficlStackPopInteger(vm->dataStack);
sysDcrCr0Set(val);
}
static void ficl_task_delay(ficlVm *vm)
{
int delay;
FICL_STACK_CHECK(vm->dataStack,1,0);
delay = ficlStackPopInteger(vm->dataStack);
taskDelay(delay);
}
/*
* s e t - o r d e r
* SEARCH ( widn ... wid1 n -- )
* Set the search order to the word lists identified by widn ... wid1.
* Subsequently, word list wid1 will be searched first, and word list
* widn searched last. If n is zero, empty the search order. If n is minus
* one, set the search order to the implementation-defined minimum
* search order. The minimum search order shall include the words
* FORTH-WORDLIST and SET-ORDER. A system shall allow n to
* be at least eight.
*/
static void
ficlPrimitiveSetOrder(ficlVm *vm)
{
int i;
int wordlistCount = ficlStackPopInteger(vm->dataStack);
ficlDictionary *dictionary = ficlVmGetDictionary(vm);
if (wordlistCount > FICL_MAX_WORDLISTS) {
ficlVmThrowError(vm,
"set-order error: list would be too large");
}
ficlDictionaryLock(dictionary, FICL_TRUE);
if (wordlistCount >= 0) {
dictionary->wordlistCount = wordlistCount;
for (i = wordlistCount-1; i >= 0; --i) {
dictionary->wordlists[i] =
ficlStackPopPointer(vm->dataStack);
}
} else {
ficlDictionaryResetSearchOrder(dictionary);
}
ficlDictionaryLock(dictionary, FICL_FALSE);
}
static void ficl_sysDcrEbcGet(ficlVm *vm)
{
uint32_t addr, val;
FICL_STACK_CHECK(vm->dataStack,1,1);
addr = ficlStackPopInteger(vm->dataStack);
val = sysDcrEbcGet(addr);
ficlStackPushInteger(vm->dataStack,val);
}
static void ficlPrimitiveWriteFile(ficlVm *vm) /* ( c-addr u1 fileid -- ior ) */
{
ficlFile *ff = (ficlFile *)ficlStackPopPointer(vm->dataStack);
int length = ficlStackPopInteger(vm->dataStack);
void *address = (void *)ficlStackPopPointer(vm->dataStack);
clearerr(ff->f);
fwrite(address, 1, length, ff->f);
pushIor(vm, ferror(ff->f) == 0);
}
static void ficlPrimitiveDeleteFile(ficlVm *vm) /* ( c-addr u -- ior ) */
{
int length = ficlStackPopInteger(vm->dataStack);
void *address = (void *)ficlStackPopPointer(vm->dataStack);
char *filename = (char *)malloc(length + 1);
memcpy(filename, address, length);
filename[length] = 0;
pushIor(vm, !unlink(filename));
free(filename);
}
static void ficlPrimitiveTempBase(ficlVm *vm)
{
int oldbase = vm->base;
ficlString number = ficlVmGetWord0(vm);
int base = ficlStackPopInteger(vm->dataStack);
vm->base = base;
if (!ficlVmParseNumber(vm, number))
ficlVmThrowError(vm, "%.*s not recognized", FICL_STRING_GET_LENGTH(number), FICL_STRING_GET_POINTER(number));
vm->base = oldbase;
return;
}
static void ficlPrimitiveReadFile(ficlVm *vm) /* ( c-addr u1 fileid -- u2 ior ) */
{
ficlFile *ff = (ficlFile *)ficlStackPopPointer(vm->dataStack);
int length = ficlStackPopInteger(vm->dataStack);
void *address = (void *)ficlStackPopPointer(vm->dataStack);
int result;
clearerr(ff->f);
result = fread(address, 1, length, ff->f);
ficlStackPushInteger(vm->dataStack, result);
pushIor(vm, ferror(ff->f) == 0);
}
static void ficlPrimitiveFileStatus(ficlVm *vm) /* ( c-addr u -- x ior ) */
{
int status;
int ior;
int length = ficlStackPopInteger(vm->dataStack);
void *address = (void *)ficlStackPopPointer(vm->dataStack);
char *filename = (char *)malloc(length + 1);
memcpy(filename, address, length);
filename[length] = 0;
ior = ficlFileStatus(filename, &status);
free(filename);
ficlStackPushInteger(vm->dataStack, status);
ficlStackPushInteger(vm->dataStack, ior);
}
static void ficlPrimitiveReadLine(ficlVm *vm) /* ( c-addr u1 fileid -- u2 flag ior ) */
{
ficlFile *ff = (ficlFile *)ficlStackPopPointer(vm->dataStack);
int length = ficlStackPopInteger(vm->dataStack);
char *address = (char *)ficlStackPopPointer(vm->dataStack);
int error;
int flag;
if (feof(ff->f))
{
ficlStackPushInteger(vm->dataStack, -1);
ficlStackPushInteger(vm->dataStack, 0);
ficlStackPushInteger(vm->dataStack, 0);
return;
}
clearerr(ff->f);
*address = 0;
fgets(address, length, ff->f);
error = ferror(ff->f);
if (error != 0)
{
ficlStackPushInteger(vm->dataStack, -1);
ficlStackPushInteger(vm->dataStack, 0);
ficlStackPushInteger(vm->dataStack, error);
return;
}
length = strlen(address);
flag = (length > 0);
if (length && ((address[length - 1] == '\r') || (address[length - 1] == '\n')))
length--;
ficlStackPushInteger(vm->dataStack, length);
ficlStackPushInteger(vm->dataStack, flag);
ficlStackPushInteger(vm->dataStack, 0); /* ior */
}
FICL_PLATFORM_EXTERN ficlInteger stackPopINT (ficlStack *stack) { return ficlStackPopInteger(stack); }
/*
* Shim for taking commands from BF and passing them out to 'standard'
* argv/argc command functions.
*/
static void
bf_command(ficlVm *vm)
{
char *name, *line, *tail, *cp;
size_t len;
struct bootblk_command **cmdp;
bootblk_cmd_t *cmd;
int nstrings, i;
int argc, result;
char **argv;
/* Get the name of the current word */
name = vm->runningWord->name;
/* Find our command structure */
cmd = NULL;
SET_FOREACH(cmdp, Xcommand_set) {
if (((*cmdp)->c_name != NULL) &&
strcmp(name, (*cmdp)->c_name) == 0)
cmd = (*cmdp)->c_fn;
}
if (cmd == NULL)
panic("callout for unknown command '%s'", name);
/* Check whether we have been compiled or are being interpreted */
if (ficlStackPopInteger(ficlVmGetDataStack(vm))) {
/*
* Get parameters from stack, in the format:
* an un ... a2 u2 a1 u1 n --
* Where n is the number of strings, a/u are pairs of
* address/size for strings, and they will be concatenated
* in LIFO order.
*/
nstrings = ficlStackPopInteger(ficlVmGetDataStack(vm));
for (i = 0, len = 0; i < nstrings; i++) {
ficlStack *stack = ficlVmGetDataStack(vm);
len += ficlStackFetch(stack, i * 2).i + 1;
}
line = malloc(strlen(name) + len + 1);
strcpy(line, name);
if (nstrings)
for (i = 0; i < nstrings; i++) {
ficlStack *stack = ficlVmGetDataStack(vm);
len = ficlStackPopInteger(stack);
cp = ficlStackPopPointer(stack);
strcat(line, " ");
strncat(line, cp, len);
}
} else {
/* Get remainder of invocation */
tail = ficlVmGetInBuf(vm);
len = 0;
cp = tail;
for (; cp != vm->tib.end && *cp != 0 && *cp != '\n'; cp++)
len++;
line = malloc(strlen(name) + len + 2);
strcpy(line, name);
if (len > 0) {
strcat(line, " ");
strncat(line, tail, len);
ficlVmUpdateTib(vm, tail + len);
}
}
DPRINTF("cmd '%s'", line);
command_errmsg = command_errbuf;
command_errbuf[0] = 0;
if (!parse(&argc, &argv, line)) {
result = (cmd)(argc, argv);
free(argv);
} else {
result = BF_PARSE;
}
switch (result) {
case CMD_CRIT:
printf("%s\n", command_errmsg);
command_errmsg = NULL;
break;
case CMD_FATAL:
panic("%s", command_errmsg);
}
free(line);
/*
* If there was error during nested ficlExec(), we may no longer have
* valid environment to return. Throw all exceptions from here.
*/
if (result != CMD_OK)
ficlVmThrow(vm, result);
/* This is going to be thrown!!! */
ficlStackPushInteger(ficlVmGetDataStack(vm), result);
}
static void ficlPrimitiveLoad_(ficlVm *vm, int warn, int icat_special)
{
char filename[FICL_COUNTED_STRING_MAX];
ficlCountedString *counted = (ficlCountedString *)filename;
char *file_data;
unsigned size = 0;
int line_num;
char *line, *c, *end;
ficlCell oldSourceId;
ficlString s;
int result = 0;
char *context;
int offset;
if (icat_special)
{
int index;
FICL_STACK_CHECK(vm->dataStack,1,0);
index = ficlStackPopInteger(vm->dataStack);
sprintf(filename,"%sicat_config%02d.tbl",ICAT_DEV_PREFIX,index);
file_data = find_and_load(filename,&size,&offset);
}
else
{
ficlVmGetString(vm, counted, '\n');
if (FICL_COUNTED_STRING_GET_LENGTH(*counted) <= 0)
{
ficlVmTextOut(vm, "Warning (load): nothing happened\n");
return;
}
file_data = find_and_load(FICL_COUNTED_STRING_GET_POINTER(*counted),&size,&offset);
}
/*
** get the file's size and make sure it exists
*/
if (file_data == NULL)
if (warn)
{
ficlVmTextOut(vm, "Unable to open file ");
ficlVmTextOut(vm, FICL_COUNTED_STRING_GET_POINTER(*counted));
ficlVmTextOut(vm, "\n");
ficlVmThrow(vm, FICL_VM_STATUS_QUIT);
}
else
return;
oldSourceId = vm->sourceId;
vm->sourceId.i = -1;
/* feed each line to ficlExec */
for (end = file_data + size + offset, line = file_data + offset, line_num = 1; line < end; line = ++c, line_num++)
{
int length;
for (c = line; *c != '\n' && c<end; c++);
length = c-line;
if (length > 0)
{
FICL_STRING_SET_POINTER(s, line);
FICL_STRING_SET_LENGTH(s, length);
result = ficlVmExecuteString(vm, s);
/* handle "bye" in loaded files. --lch */
switch (result)
{
case FICL_VM_STATUS_OUT_OF_TEXT:
case FICL_VM_STATUS_USER_EXIT:
break;
default:
vm->sourceId = oldSourceId;
free(file_data);
file_data = NULL;
ficlVmThrowError(vm, "Error loading file <%s> line %d", FICL_COUNTED_STRING_GET_POINTER(*counted), line_num);
break;
}
}
}
if (file_data != NULL) free(file_data);
vm->sourceId = oldSourceId;
/* handle "bye" in loaded files. --lch */
if (result == FICL_VM_STATUS_USER_EXIT)
ficlVmThrow(vm, FICL_VM_STATUS_USER_EXIT);
return;
}
/*
** m u l t i c a l l
**
** The be-all, end-all, swiss-army-chainsaw of native function call methods in Ficl.
**
** Usage:
** ( x*argumentCount [this] [vtable] argumentCount floatArgumentBitfield cstringArgumentBitfield functionAddress flags -- returnValue | )
** Note that any/all of the arguments (x*argumentCount) and the return value can use the
** float stack instead of the data stack.
**
** To call a simple native function:
** call with flags = MULTICALL_CALLTYPE_FUNCTION
** To call a method on an object:
** pass in the "this" pointer just below argumentCount,
** call with flags = MULTICALL_CALLTYPE_METHOD
** *do not* include the "this" pointer for the purposes of argumentCount
** To call a virtual method on an object:
** pass in the "this" pointer just below argumentCount,
** call with flags = MULTICALL_CALLTYPE_VIRTUAL_METHOD
** *do not* include the "this" pointer for the purposes of argumentCount
** the function address must be the offset into the vtable for that function
** It doesn't matter whether the function you're calling is "stdcall" (caller pops
** the stack) or "fastcall" (callee pops the stack); for robustness, multicall
** always restores the original stack pointer anyway.
**
**
** To handle floating-point arguments:
** To thunk an argument from the float stack instead of the data stack, set the corresponding bit
** in the "floatArgumentBitfield" argument. Argument zero is bit 0 (1), argument one is bit 1 (2),
** argument 2 is is bit 2 (4), argument 3 is bit 3 (8), etc. For instance, to call this function:
** float greasyFingers(int a, float b, int c, float d)
** you would call
** 4 \ argumentCount
** 2 8 or \ floatArgumentBitfield, thunk argument 2 (2) and 4 (8)
** 0 \ cstringArgumentBitfield, don't thunk any arguments
** (addressOfGreasyFingers) MULTICALL-CALLTYPE-FUNCTION MULTICALL-RETURNTYPE-FLOAT or multicall
**
** To handle automatic conversion of addr-u arguments to C-style strings:
** This is much like handling float arguments. The bit set in cstringArgumentBitfield specifies
** the *length* argument (the higher of the two arguments) for each addr-u you want converted.
** You must count *both* arguments for the purposes of the argumentCount parameter.
** For instance, to call the Win32 function MessageBoxA:
**
** 0 "Howdy there!" "Title" 0
** 6 \ argument count is 6! flags text-addr text-u title-addr title-u hwnd
** 0 \ floatArgumentBitfield, don't thunk any float arguments
** 2 8 or \ cstringArgumentBitfield, thunk for title-u (argument 2, 2) and text-u (argument 4, 8)
** (addressOfMessageBoxA) MULTICALL-CALLTYPE-FUNCTION MULTICALL-RETURNTYPE-INTEGER or multicall
** The strings are copied to temporary storage and appended with a zero. These strings are freed
** before multicall returns. If you need to call functions that write to these string buffers,
** you'll need to handle thunking those arguments yourself.
**
** (If you want to call a function with more than 32 parameters, and do thunking, you need to hit somebody
** in the head with a rock. Note: this could be you!)
**
** Note that, big surprise, this function is really really really dependent
** on predefined behavior of Win32 and MSVC. It would be non-zero amounts of
** work to port to Win64, Linux, other compilers, etc.
**
** --lch
*/
static void ficlPrimitiveMulticall(ficlVm *vm)
{
int flags;
int functionAddress;
int argumentCount;
int *thisPointer;
int integerReturnValue;
#if FICL_WANT_FLOAT
float floatReturnValue;
#endif /* FICL_WANT_FLOAT */
int cstringArguments;
int floatArguments;
int i;
char **fixups;
int fixupCount;
int fixupIndex;
int *argumentPointer;
int finalArgumentCount;
int argumentDirection;
int *adjustedArgumentPointer;
int originalESP;
int vtable;
flags = ficlStackPopInteger(vm->dataStack);
functionAddress = ficlStackPopInteger(vm->dataStack);
if (FICL_MULTICALL_GET_CALLTYPE(flags) == FICL_MULTICALL_CALLTYPE_VIRTUAL_METHOD)
functionAddress *= 4;
cstringArguments = ficlStackPopInteger(vm->dataStack);
floatArguments = ficlStackPopInteger(vm->dataStack);
#if !FICL_WANT_FLOAT
FICL_VM_ASSERT(vm, !floatArguments);
FICL_VM_ASSERT(vm, FICL_MULTICALL_GET_RETURNTYPE(flags) != FICL_MULTICALL_RETURNTYPE_FLOAT);
#endif /* !FICL_WANT_FLOAT */
argumentCount = ficlStackPopInteger(vm->dataStack);
fixupCount = 0;
if (cstringArguments)
{
for (i = 0; i < argumentCount; i++)
if (cstringArguments & (1 << i))
fixupCount++;
fixups = (char **)malloc(fixupCount * sizeof(char *));
}
else
{
fixups = NULL;
}
/* argumentCount does *not* include the *this* pointer! */
if (FICL_MULTICALL_GET_CALLTYPE(flags) != FICL_MULTICALL_CALLTYPE_FUNCTION)
{
if (flags & FICL_MULTICALL_EXPLICIT_VTABLE)
vtable = ficlStackPopInteger(vm->dataStack);
__asm push ecx
thisPointer = (int *)ficlStackPopPointer(vm->dataStack);
if ((flags & FICL_MULTICALL_EXPLICIT_VTABLE) == 0)
vtable = *thisPointer;
}
__asm mov originalESP, esp
fixupIndex = 0;
finalArgumentCount = argumentCount - fixupCount;
__asm mov argumentPointer, esp
adjustedArgumentPointer = argumentPointer - finalArgumentCount;
__asm mov esp, adjustedArgumentPointer
if (flags & FICL_MULTICALL_REVERSE_ARGUMENTS)
{
argumentDirection = -1;
argumentPointer--;
}
else
{
argumentPointer = adjustedArgumentPointer;
argumentDirection = 1;
}
for (i = 0; i < argumentCount; i++)
{
int argument;
/* a single argument can't be both a float and a cstring! */
FICL_VM_ASSERT(vm, !((floatArguments & 1) && (cstringArguments & 1)));
#if FICL_WANT_FLOAT
if (floatArguments & 1)
argument = ficlStackPopInteger(vm->floatStack);
else
#endif /* FICL_WANT_FLOAT */
argument = ficlStackPopInteger(vm->dataStack);
if (cstringArguments & 1)
{
int length;
char *address;
char *buffer;
address = ficlStackPopPointer(vm->dataStack);
length = argument;
buffer = malloc(length + 1);
memcpy(buffer, address, length);
buffer[length] = 0;
fixups[fixupIndex++] = buffer;
argument = (int)buffer;
argumentCount--;
floatArguments >>= 1;
cstringArguments >>= 1;
}
*argumentPointer = argument;
argumentPointer += argumentDirection;
floatArguments >>= 1;
cstringArguments >>= 1;
}