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Diffstat (limited to 'generic/tclExecute.c')
-rw-r--r--generic/tclExecute.c40
1 files changed, 16 insertions, 24 deletions
diff --git a/generic/tclExecute.c b/generic/tclExecute.c
index 65d6e89..f25b588 100644
--- a/generic/tclExecute.c
+++ b/generic/tclExecute.c
@@ -174,28 +174,24 @@ static BuiltinFunc const tclBuiltinFuncTable[] = {
typedef struct TEBCdata {
ByteCode *codePtr; /* Constant until the BC returns */
/* -----------------------------------------*/
- const unsigned char *pc; /* These fields are used on return TO this */
- ptrdiff_t *catchTop; /* this level: they record the state when a */
- int cleanup; /* new codePtr was received for NR */
- Tcl_Obj *auxObjList; /* execution. */
- CmdFrame cmdFrame;
+ ptrdiff_t *catchTop; /* These fields are used on return TO this */
+ Tcl_Obj *auxObjList; /* this level: they record the state when a */
+ CmdFrame cmdFrame; /* new codePtr was received for NR */
+ /* execution. */
void *stack[1]; /* Start of the actual combined catch and obj
* stacks; the struct will be expanded as
* necessary */
} TEBCdata;
#define TEBC_YIELD() \
- do { \
- esPtr->tosPtr = tosPtr; \
- TD->pc = pc; \
- TD->cleanup = cleanup; \
- TclNRAddCallback(interp, TEBCresume, TD, INT2PTR(1), NULL, NULL); \
+ do { \
+ esPtr->tosPtr = tosPtr; \
+ TclNRAddCallback(interp, TEBCresume, \
+ TD, pc, INT2PTR(cleanup), NULL); \
} while (0)
#define TEBC_DATA_DIG() \
do { \
- pc = TD->pc; \
- cleanup = TD->cleanup; \
tosPtr = esPtr->tosPtr; \
} while (0)
@@ -2032,10 +2028,6 @@ TclNRExecuteByteCode(
* sizeof(void *);
int numWords = (size + sizeof(Tcl_Obj *) - 1) / sizeof(Tcl_Obj *);
- if (iPtr->execEnvPtr->rewind) {
- return TCL_ERROR;
- }
-
codePtr->refCount++;
/*
@@ -2054,9 +2046,7 @@ TclNRExecuteByteCode(
esPtr->tosPtr = initTosPtr;
TD->codePtr = codePtr;
- TD->pc = codePtr->codeStart;
TD->catchTop = initCatchTop;
- TD->cleanup = 0;
TD->auxObjList = NULL;
/*
@@ -2086,8 +2076,8 @@ TclNRExecuteByteCode(
* Push the callback for bytecode execution
*/
- TclNRAddCallback(interp, TEBCresume, TD, /*resume*/ INT2PTR(0),
- NULL, NULL);
+ TclNRAddCallback(interp, TEBCresume, TD, /* pc */ NULL,
+ /* cleanup */ INT2PTR(0), NULL);
return TCL_OK;
}
@@ -2150,7 +2140,8 @@ TEBCresume(
Tcl_Obj **tosPtr; /* Cached pointer to top of evaluation
* stack. */
- const unsigned char *pc; /* The current program counter. */
+ const unsigned char *pc = data[1];
+ /* The current program counter. */
unsigned char inst; /* The currently running instruction */
/*
@@ -2158,7 +2149,7 @@ TEBCresume(
* executing an instruction.
*/
- int cleanup = 0;
+ int cleanup = PTR2INT(data[2]);
Tcl_Obj *objResultPtr;
int checkInterp; /* Indicates when a check of interp readyness
* is necessary. Set by CACHE_STACK_INFO() */
@@ -2186,16 +2177,17 @@ TEBCresume(
TEBC_DATA_DIG();
#ifdef TCL_COMPILE_DEBUG
- if (!data[1] && (tclTraceExec >= 2)) {
+ if (!pc && (tclTraceExec >= 2)) {
PrintByteCodeInfo(codePtr);
fprintf(stdout, " Starting stack top=%d\n", (int) CURR_DEPTH);
fflush(stdout);
}
#endif
- if (!data[1]) {
+ if (!pc) {
/* bytecode is starting from scratch */
checkInterp = 0;
+ pc = codePtr->codeStart;
goto cleanup0;
} else {
/* resume from invocation */