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--- manual:chapter6:stack:cmd_drop [2019/10/22 14:54]
jojo1973 Fixed internal link
+++ manual:chapter6:stack:cmd_drop [2019/11/28 14:44] (current)
jojo1973 Added flags -28 and -29
@@ Line 9: / Line 9: @@
 ----
 ^  __Input Stack__  ^  ^  __Output Stack__  ^
-|  **O<sub>1</sub>**  |  **→**  |  |
+|  **O**  |  **→**  |  |
 |  //Level 1//  |  //→//  |  //Level 1//  |
@@ Line 16: / Line 16: @@
 |**Type**| [[manual:chapter5:basics#commands|Command]]  ||
 |**Parallel list processing**| [[manual:chapter5:listproc#group-2commands-that-must-use-dolist-to-parallel-process|Group 2]]  ||
-|**Affected by flags**| None  ||
+|**Affected by flags**|  [[manual:appendix:flags#flag-28|-28]] | RPL / RPN stack mode  |
+|:::|  [[manual:appendix:flags#flag-29|-29]] | RPN stack depth  |
 </callout>
@@ Line 22: / Line 23: @@
 ----
 The ''DROP'' command deletes the object on the top of the stack, shifting the remaining ones by one level.
+When the stack is in RPN mode ''DROP'' fills immediately the bottom-most level of the stack (level 4 or level 8, depending on the selected stack depth) with the value it stored before the shift happened.
 </callout>
-<callout type="success" icon="true" title="Compatibility">
+<callout type="warning" icon="true" title="Compatibility">
 ----
-This command is fully compatible with userRPL.
+This command is only partially compatible with userRPL.
+In particular:
+  * In userRPL RPN stack mode is not supported.
 </callout>