- H --- cursor position
@not_f:
  cmp #$48
  bne @not_H
@set_cursor_position:
  cpy #$01    ; no par means home
  bne :+
  ; -- home --
  ldx #$00
  ldy #$00
  jsr cursor_plot   ; set crsr
  jmp @end_escape_seq
  ; -- row, col --
:
  jsr get_number_from_esc_seq
  cmp #$3b    ; is ;?
  bne @end_set_cursor_position    ; no -> error
  ; -- prepare row --
  ldy escape_parameter    ; get row
  bne :+    ; 0 means 1
  iny
:       
  dey         ; line 1 -> line 0
  cpy #$19    ; >= 25?..
 