code for automatically filling the STD cell (in my case, the DMY cell) in the layout using a user-defined enter box for vacant spaces in layout

Greetings Team,

I am grateful for your assistance whenever I am in need. I am working with the IC 23.1 tool.

Please help in the following code issue or share your code for automatically filling the STD cell (in my case, the DMY cell) in the layout using a user-defined enter box for vacant spaces in layout. 

Our form is the greatest spot for all experienced people.  Here is my code 

/*****************************************************************************
* Procedure: placeStdCellsInBoxEnterBox *
* Description: Tiles a user-drawn box area with instances of a master cell. *
*****************************************************************************/
procedure(placeStdCellsInBoxEnterBox(libName cellName viewName spacing)
let((cvId box llx lly urx ury instCv width height x y
inst_llx inst_lly inst_urx inst_ury
)

;; 1. Get current layout view
cvId = geGetEditCellView()
when(cvId == nil
(error "ERROR: No active layout view found. Please open a cell for editing.\n")
)

;; 2. Ask user to draw a box
box = enterBox()
when(box == nil
(return t) ; User-cancelled action
)

;; 3. Extract coordinates
llx = nth(0 box)
lly = nth(1 box)
urx = nth(2 box)
ury = nth(3 box)

;; 4. Open master cell and get dimensions
instCv = dbOpenCellViewByType(libName cellName viewName)

;; CRITICAL A: Check if the cell-view opened.
when(instCv == nil
(error "ERROR: Cannot find master cellview: %s/%s/%s\n" libName cellName viewName)
)

;; CRITICAL B: Check if the BBox attribute exists.
when(instCv~>bBox == nil
(dbClose(instCv))
(error "ERROR: Master cell %s/%s does not have a valid bounding box (bBox is nil).\n" libName cellName)
)

;; 5. Calculate cell dimensions. This section requires clean data!
destructuringBind(((inst_llx inst_lly) (inst_urx inst_ury)) instCv~>bBox
width = inst_urx - inst_llx
height = inst_ury - inst_lly
)

;; Check for valid cell dimensions
when(or(width <= 0 height <= 0)
(dbClose(instCv))
(error "ERROR: Master cell %s has a zero or negative dimension.\n" cellName)
)

;; 6. Place standard cells (Tiling Loop)
printf("Tiling area %g x %g with cell %s (W:%g, H:%g). Spacing: %g.\n"
(urx - llx) (ury - lly) cellName width height spacing)

y = lly
while(y <= ury - height
x = llx
while(x <= urx - width
dbCreateInst(cvId instCv nil list(x y) "R0")
x = x + width + spacing
)
y = y + height + spacing
)

;; 7. Cleanup and Refresh
dbClose(instCv)
geRefresh(cvId)

printf("\nStandard cells placed successfully in box from (%g %g) to (%g %g).\n" llx lly urx ury)

t
)

;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;; Out put in CIW after running this code :;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;;

;;  placeStdCellsInBoxEnterBox("Testchip_tsmcN22_yogesh" "DMY" "layout" 0.2)

;;;  *Error* difference: can't handle (nil - (11.72 62.0))

kindly share any skill codes you may have.

I will be grateful for your help. Please help in!

With warm regards,

Yogesh Jaiswal