diff --git a/contrib/zsh_compl/_rgbasm b/contrib/zsh_compl/_rgbasm
index 2998be21..238c9baf 100644
--- a/contrib/zsh_compl/_rgbasm
+++ b/contrib/zsh_compl/_rgbasm
@@ -1,7 +1,7 @@
 #compdef rgbasm

 _rgbasm_warnings() {
-   local warnings=(
+   local -a base_warnings=(
        'error:Turn all warnings into errors'

        'all:Enable most warning messages'
@@ -30,8 +30,55 @@ _rgbasm_warnings() {
        'unterminated-load:Warn on LOAD without ENDL'
        'user:Warn when executing the WARN built-in'
    )
-   # TODO: handle `no-` and `error=` somehow?
-   # TODO: handle `=0|1|2` levels for `numeric-string`, `purge`, `truncation`, and `unmapped-char`?
+
+   # Warnings that support levels
+   local -a level_warnings=(
+       'numeric-string'
+       'purge'
+       'truncation'
+       'unmapped-char'
+   )
+
+   local -a warnings=()
+   local warning
+
+   # Add base warnings
+   warnings=($base_warnings)
+
+   # Add no- prefix for all warnings except error, all, extra, everything
+   for warning in ${base_warnings}; do
+       local name=${warning%%:*}
+       local desc=${warning#*:}
+       case $name in
+           error|all|extra|everything) continue ;;
+           *) warnings+=("no-$name:Disable warning: $desc") ;;
+       esac
+   done
+
+   # Add error= prefix for all warnings except error, all, extra, everything
+   for warning in ${base_warnings}; do
+       local name=${warning%%:*}
+       local desc=${warning#*:}
+       case $name in
+           error|all|extra|everything) continue ;;
+           *) warnings+=("error=$name:Treat as error: $desc") ;;
+       esac
+   done
+
+   # Add =0|1|2 levels for specific warnings
+   for warning in $level_warnings; do
+       local base_desc
+       for w in $base_warnings; do
+           if [[ ${w%%:*} == $warning ]]; then
+               base_desc=${w#*:}
+               break
+           fi
+       done
+       warnings+=("$warning=0:Disable: $base_desc")
+       warnings+=("$warning=1:Enable: $base_desc")
+       warnings+=("$warning=2:Extra strict: $base_desc")
+   done
+
    _describe warning warnings
 }

@@ -64,4 +111,4 @@ local args=(

    ":assembly sources:_files -g '*.asm'"
 )
-_arguments -s -S : $args
+_arguments -s -S : $args
\ No newline at end of file