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Add the infrastructure necessary to handle PnP from a Forth script.

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Also, export the file_findfile() function. Again, this is taken from
work in progress but frozen for the time being. Since it works, I'd
rather commit and remove any uglyness later than hide it on my tree.
This commit is contained in:
dcs 2000-09-08 17:03:53 +00:00
parent 96bba78abe
commit e8604ccc3e
3 changed files with 103 additions and 0 deletions
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4
sys/boot/ficl/ficl.h
View File

@ -873,6 +873,10 @@ extern void ficlGetenv(FICL_VM *pVM);
extern void ficlUnsetenv(FICL_VM *pVM);
extern void ficlCopyin(FICL_VM *pVM);
extern void ficlCopyout(FICL_VM *pVM);
extern void ficlFindfile(FICL_VM *pVM);
extern void ficlPnpdevices(FICL_VM *pVM);
extern void ficlPnphandlers(FICL_VM *pVM);
extern void ficlCcall(FICL_VM *pVM);
#endif
#ifdef __cplusplus

95
sys/boot/ficl/loader.c
View File

@ -45,6 +45,10 @@
* unsetenv ( addr n -- )
* copyin ( addr addr' len -- )
* copyout ( addr addr' len -- )
* findfile ( name len type len' -- addr )
* pnpdevices ( -- addr )
* pnphandlers ( -- addr )
* ccall ( [[...[p10] p9] ... p1] n addr -- result )
*/
void
@ -206,3 +210,94 @@ ficlCopyout(FICL_VM *pVM)
return;
}
void
ficlFindfile(FICL_VM *pVM)
{
char *name, *type, *namep, *typep;
struct preloaded_file* fp;
int names, types;
#if FICL_ROBUST > 1
vmCheckStack(pVM, 4, 1);
#endif
types = stackPopINT(pVM->pStack);
typep = (char*) stackPopPtr(pVM->pStack);
names = stackPopINT(pVM->pStack);
namep = (char*) stackPopPtr(pVM->pStack);
name = (char*) ficlMalloc(names+1);
if (!name)
vmThrowErr(pVM, "Error: out of memory");
strncpy(name, namep, names);
name[names] = '\0';
type = (char*) ficlMalloc(types+1);
if (!type)
vmThrowErr(pVM, "Error: out of memory");
strncpy(type, typep, types);
type[types] = '\0';
fp = file_findfile(name, type);
stackPushPtr(pVM->pStack, fp);
return;
}
void
ficlPnpdevices(FICL_VM *pVM)
{
static int pnp_devices_initted = 0;
#if FICL_ROBUST > 1
vmCheckStack(pVM, 0, 1);
#endif
if(!pnp_devices_initted) {
STAILQ_INIT(&pnp_devices);
pnp_devices_initted = 1;
}
stackPushPtr(pVM->pStack, &pnp_devices);
return;
}
void
ficlPnphandlers(FICL_VM *pVM)
{
#if FICL_ROBUST > 1
vmCheckStack(pVM, 0, 1);
#endif
stackPushPtr(pVM->pStack, pnphandlers);
return;
}
void
ficlCcall(FICL_VM *pVM)
{
int (*func)(int, ...);
int result, p[10];
int nparam, i;
#if FICL_ROBUST > 1
vmCheckStack(pVM, 2, 0);
#endif
func = stackPopPtr(pVM->pStack);
nparam = stackPopINT(pVM->pStack);
#if FICL_ROBUST > 1
vmCheckStack(pVM, nparam, 1);
#endif
for (i = 0; i < nparam; i++)
p[i] = stackPopINT(pVM->pStack);
result = func(p[0], p[1], p[2], p[3], p[4], p[5], p[6], p[7], p[8],
p[9]);
stackPushINT(pVM->pStack, result);
return;
}

4
sys/boot/ficl/words.c
View File

@ -4832,6 +4832,10 @@ void ficlCompileCore(FICL_DICT *dp)
dictAppendWord(dp, "unsetenv", ficlUnsetenv, FW_DEFAULT);
dictAppendWord(dp, "copyin", ficlCopyin, FW_DEFAULT);
dictAppendWord(dp, "copyout", ficlCopyout, FW_DEFAULT);
dictAppendWord(dp, "findfile", ficlFindfile, FW_DEFAULT);
dictAppendWord(dp, "pnpdevices",ficlPnpdevices, FW_DEFAULT);
dictAppendWord(dp, "pnphandlers",ficlPnphandlers, FW_DEFAULT);
dictAppendWord(dp, "ccall", ficlCcall, FW_DEFAULT);
#endif
#if defined(__i386__)