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Begin setting a foundation on which to convert the VM from a stack-based

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to a register-based machine.  Everything is still mostly stack based with
this check-in.  This change merely begins adding infrastructure to support
a register-based architecture. (CVS 4652)

FossilOrigin-Name: 051ec01f2799e095516015f2ef0180e50fac387c
This commit is contained in:
drh
2008-01-02 00:34:36 +00:00
parent 8f2c54e6e2
commit d4e70ebd6f
17 changed files with 403 additions and 225 deletions
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7
src/pragma.c
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@@ -11,7 +11,7 @@
*************************************************************************
** This file contains code used to implement the PRAGMA command.
**
** $Id: pragma.c,v 1.153 2007/12/29 13:39:20 danielk1977 Exp $
** $Id: pragma.c,v 1.154 2008/01/02 00:34:37 drh Exp $
*/
#include "sqliteInt.h"
#include <ctype.h>
@@ -147,12 +147,13 @@ static int changeTempStorage(Parse *pParse, const char *zStorageType){
*/
static void returnSingleInt(Parse *pParse, const char *zLabel, int value){
Vdbe *v = sqlite3GetVdbe(pParse);
sqlite3VdbeAddOp(v, OP_Integer, value, 0);
int mem = pParse->nMem++;
sqlite3VdbeAddOp(v, OP_MemInt, value, mem);
if( pParse->explain==0 ){
sqlite3VdbeSetNumCols(v, 1);
sqlite3VdbeSetColName(v, 0, COLNAME_NAME, zLabel, P3_STATIC);
}
sqlite3VdbeAddOp(v, OP_Callback, 1, 0);
sqlite3VdbeAddOp(v, OP_ResultRow, mem, 1);
}
#ifndef SQLITE_OMIT_FLAG_PRAGMAS