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Registers (aka memory cells) in the VM are now numbered starting with 1

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instead of 0.  A register number of 0 means "no such register". (CVS 4669)

FossilOrigin-Name: 0b849805c3a0f562d50623f406279b400d335639
This commit is contained in:
drh
2008-01-03 18:03:08 +00:00
parent 2a339ff677
commit 0a07c107a6
14 changed files with 110 additions and 111 deletions
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12
src/delete.c
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@@ -12,7 +12,7 @@
** This file contains C code routines that are called by the parser
** in order to generate code for DELETE FROM statements.
**
** $Id: delete.c,v 1.143 2008/01/03 17:31:45 danielk1977 Exp $
** $Id: delete.c,v 1.144 2008/01/03 18:03:09 drh Exp $
*/
#include "sqliteInt.h"
@@ -65,8 +65,8 @@ int sqlite3IsReadOnly(Parse *pParse, Table *pTab, int viewOk){
** reads the key and data to insert from memory cells.
*/
void sqlite3CodeInsert(Parse *p, int iCur, u8 flags){
int iData = p->nMem++;
int iKey = p->nMem++;
int iData = ++p->nMem;
int iKey = ++p->nMem;
Vdbe *v = sqlite3GetVdbe(p);
sqlite3VdbeAddOp2(v, OP_MemStore, iData, 1);
sqlite3VdbeAddOp2(v, OP_MemStore, iKey, 1);
@@ -82,7 +82,7 @@ void sqlite3CodeInsert(Parse *p, int iCur, u8 flags){
*/
int sqlite3StackToReg(Parse *p, int nVal){
int i;
int iRet = p->nMem;
int iRet = p->nMem+1;
Vdbe *v = sqlite3GetVdbe(p);
assert(v);
p->nMem += nVal;
@@ -263,7 +263,7 @@ void sqlite3DeleteFrom(
** we are counting rows.
*/
if( db->flags & SQLITE_CountRows ){
memCnt = pParse->nMem++;
memCnt = ++pParse->nMem;
sqlite3VdbeAddOp2(v, OP_MemInt, 0, memCnt);
}
@@ -346,7 +346,7 @@ void sqlite3DeleteFrom(
sqlite3VdbeAddOp1(v, OP_StackDepth, -1);
if( triggers_exist ){
int mem1 = pParse->nMem++;
int mem1 = ++pParse->nMem;
if( !isView ){
sqlite3VdbeAddOp1(v, OP_MemStore, mem1);
}