3256   int nReg;                   /* Registers to allocate */  in sqlite3CodeSubselect()  local
3312   nReg = pExpr->op==TK_SELECT ? pSel->pEList->nExpr : 1;  in sqlite3CodeSubselect()
3314   pParse->nMem += nReg;  in sqlite3CodeSubselect()
3318     dest.nSdst = nReg;  in sqlite3CodeSubselect()
3319     sqlite3VdbeAddOp3(v, OP_Null, 0, dest.iSDParm, dest.iSDParm+nReg-1);  in sqlite3CodeSubselect()
3857 void sqlite3ExprCodeMove(Parse *pParse, int iFrom, int iTo, int nReg){  in sqlite3ExprCodeMove()  argument
3858   sqlite3VdbeAddOp3(pParse->pVdbe, OP_Move, iFrom, iTo, nReg);  in sqlite3ExprCodeMove()
6450 int sqlite3GetTempRange(Parse *pParse, int nReg){  in sqlite3GetTempRange()  argument
6452   if( nReg==1 ) return sqlite3GetTempReg(pParse);  in sqlite3GetTempRange()
6455   if( nReg<=n ){  in sqlite3GetTempRange()
6456     pParse->iRangeReg += nReg;  in sqlite3GetTempRange()
6457     pParse->nRangeReg -= nReg;  in sqlite3GetTempRange()
6460     pParse->nMem += nReg;  in sqlite3GetTempRange()
6464 void sqlite3ReleaseTempRange(Parse *pParse, int iReg, int nReg){  in sqlite3ReleaseTempRange()  argument
6465   if( nReg==1 ){  in sqlite3ReleaseTempRange()
6469   sqlite3VdbeReleaseRegisters(pParse, iReg, nReg, 0, 0);  in sqlite3ReleaseTempRange()
6470   if( nReg>pParse->nRangeReg ){  in sqlite3ReleaseTempRange()
6471     pParse->nRangeReg = nReg;  in sqlite3ReleaseTempRange()