diff options
Diffstat (limited to 'generic/tclAssembly.c')
| -rw-r--r-- | generic/tclAssembly.c | 45 |
1 files changed, 33 insertions, 12 deletions
diff --git a/generic/tclAssembly.c b/generic/tclAssembly.c index 2212d1c..7368f97 100644 --- a/generic/tclAssembly.c +++ b/generic/tclAssembly.c @@ -137,6 +137,8 @@ typedef enum TalInstType { * ranges */ ASSEM_BOOL, /* One Boolean operand */ ASSEM_BOOL_LVT4, /* One Boolean, one 4-byte LVT ref. */ + ASSEM_CLOCK_READ, /* 1-byte unsigned-integer case number, in the + * range 0-3 */ ASSEM_CONCAT1, /* 1-byte unsigned-integer operand count, must * be strictly positive, consumes N, produces * 1 */ @@ -350,6 +352,7 @@ static const TalInstDesc TalInstructionTable[] = { {"bitnot", ASSEM_1BYTE, INST_BITNOT, 1, 1}, {"bitor", ASSEM_1BYTE, INST_BITOR, 2, 1}, {"bitxor", ASSEM_1BYTE, INST_BITXOR, 2, 1}, + {"clockRead", ASSEM_CLOCK_READ, INST_CLOCK_READ, 0, 1}, {"concat", ASSEM_CONCAT1, INST_STR_CONCAT1, INT_MIN,1}, {"concatStk", ASSEM_LIST, INST_CONCAT_STK, INT_MIN,1}, {"coroName", ASSEM_1BYTE, INST_COROUTINE_NAME, 0, 1}, @@ -1361,6 +1364,23 @@ AssembleOneLine( TclEmitInt4(localVar, envPtr); break; + case ASSEM_CLOCK_READ: + if (parsePtr->numWords != 2) { + Tcl_WrongNumArgs(interp, 1, &instNameObj, "imm8"); + goto cleanup; + } + if (GetIntegerOperand(assemEnvPtr, &tokenPtr, &opnd) != TCL_OK) { + goto cleanup; + } + if (opnd < 0 || opnd > 3) { + Tcl_SetObjResult(interp, + Tcl_NewStringObj("operand must be [0..3]", -1)); + Tcl_SetErrorCode(interp, "TCL", "ASSEM", "OPERAND<0,>3", NULL); + goto cleanup; + } + BBEmitInstInt1(assemEnvPtr, tblIdx, opnd, opnd); + break; + case ASSEM_CONCAT1: if (parsePtr->numWords != 2) { Tcl_WrongNumArgs(interp, 1, &instNameObj, "imm8"); @@ -2226,23 +2246,24 @@ GetListIndexOperand( Tcl_Token* tokenPtr = *tokenPtrPtr; /* INOUT: Pointer to the next token in the * source code */ - Tcl_Obj* intObj; /* Integer from the source code */ - int status; /* Tcl status return */ + Tcl_Obj *value; + int status; - /* - * Extract the next token as a string. - */ - - if (GetNextOperand(assemEnvPtr, tokenPtrPtr, &intObj) != TCL_OK) { + /* General operand validity check */ + if (GetNextOperand(assemEnvPtr, tokenPtrPtr, &value) != TCL_OK) { return TCL_ERROR; } - + + /* Convert to an integer, advance to the next token and return. */ /* - * Convert to an integer, advance to the next token and return. + * NOTE: Indexing a list with an index before it yields the + * same result as indexing after it, and might be more easily portable + * when list size limits grow. */ + status = TclIndexEncode(interp, value, + TCL_INDEX_BEFORE,TCL_INDEX_BEFORE, result); - status = TclGetIntForIndex(interp, intObj, -2, result); - Tcl_DecrRefCount(intObj); + Tcl_DecrRefCount(value); *tokenPtrPtr = TokenAfter(tokenPtr); return status; } @@ -4246,7 +4267,7 @@ AddBasicBlockRangeToErrorInfo( Tcl_AppendObjToErrorInfo(interp, lineNo); Tcl_AddErrorInfo(interp, " and "); if (bbPtr->successor1 != NULL) { - Tcl_SetIntObj(lineNo, bbPtr->successor1->startLine); + TclSetIntObj(lineNo, bbPtr->successor1->startLine); Tcl_AppendObjToErrorInfo(interp, lineNo); } else { Tcl_AddErrorInfo(interp, "end of assembly code"); |