2802   int regStart = 0;               /* Value of <expr> PRECEDING */  in sqlite3WindowCodeStep()  local
2874     regStart = ++pParse->nMem;  in sqlite3WindowCodeStep()
2932   if( regStart ){  in sqlite3WindowCodeStep()
2933     sqlite3ExprCode(pParse, pMWin->pStart, regStart);  in sqlite3WindowCodeStep()
2934     windowCheckValue(pParse, regStart, 0 + (pMWin->eFrmType==TK_RANGE?3:0));  in sqlite3WindowCodeStep()
2941   if( pMWin->eFrmType!=TK_RANGE && pMWin->eStart==pMWin->eEnd && regStart ){  in sqlite3WindowCodeStep()
2943     int addrGe = sqlite3VdbeAddOp3(v, op, regStart, 0, regEnd);  in sqlite3WindowCodeStep()
2956     sqlite3VdbeAddOp3(v, OP_Subtract, regStart, regEnd, regStart);  in sqlite3WindowCodeStep()
2989         windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 0);  in sqlite3WindowCodeStep()
2995         windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 0);  in sqlite3WindowCodeStep()
3002     if( bRPS ) windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 0);  in sqlite3WindowCodeStep()
3004     if( !bRPS ) windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 0);  in sqlite3WindowCodeStep()
3017         windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 0);  in sqlite3WindowCodeStep()
3028         windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 0);  in sqlite3WindowCodeStep()
3050     if( bRPS ) windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 0);  in sqlite3WindowCodeStep()
3060       addrBreak2 = windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 1);  in sqlite3WindowCodeStep()
3065       addrBreak1 = windowCodeOp(&s, WINDOW_RETURN_ROW, regStart, 1);  in sqlite3WindowCodeStep()
3071       addrBreak2 = windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 1);  in sqlite3WindowCodeStep()
3086     windowCodeOp(&s, WINDOW_AGGINVERSE, regStart, 0);  in sqlite3WindowCodeStep()