diff --git a/lib/tokenize.cpp b/lib/tokenize.cpp
index af54b572b99..88c64c006c4 100644
--- a/lib/tokenize.cpp
+++ b/lib/tokenize.cpp
@@ -9902,7 +9902,7 @@ void Tokenizer::simplifyAsm()
             Token *endasm = tok->next();
             const Token *firstSemiColon = nullptr;
             int comment = 0;
-            while (Token::Match(endasm, "%num%|%name%|,|:|;") || (endasm && (endasm->isLiteral() || endasm->linenr() == comment))) {
+            while (Token::Match(endasm, "%num%|%name%|,|:|;|*|(") || (endasm && (endasm->isLiteral() || endasm->linenr() == comment))) {
                 if (Token::Match(endasm, "_asm|__asm|__endasm"))
                     break;
                 if (endasm->str() == ";") {
@@ -9910,6 +9910,11 @@ void Tokenizer::simplifyAsm()
                     if (!firstSemiColon)
                         firstSemiColon = endasm;
                 }
+                if (endasm->str() == "(") {
+                    if (!firstSemiColon)
+                        endasm = endasm->link();
+                    break;
+                }
                 endasm = endasm->next();
             }
             if (Token::simpleMatch(endasm, "__endasm")) {
@@ -9920,6 +9925,12 @@ void Tokenizer::simplifyAsm()
             } else if (firstSemiColon) {
                 instruction = tok->next()->stringifyList(firstSemiColon);
                 Token::eraseTokens(tok, firstSemiColon);
+            } else if (Token::Match(endasm, ") { !!}")) {
+                tok->deleteThis();
+                tok = endasm->tokAt(2);
+                endasm = endasm->linkAt(1);
+                instruction = tok->stringifyList(endasm);
+                Token::eraseTokens(tok, endasm);
             } else if (!endasm) {
                 instruction = tok->next()->stringifyList(endasm);
                 Token::eraseTokens(tok, endasm);
diff --git a/test/testtokenize.cpp b/test/testtokenize.cpp
index b4f075e5749..17ab380bb49 100644
--- a/test/testtokenize.cpp
+++ b/test/testtokenize.cpp
@@ -1116,6 +1116,15 @@ class TestTokenizer : public TestFixture {
         ASSERT_EQUALS(";\n\nasm ( \"\"mov ax,bx\"\" ) ;", tokenizeAndStringify(";\n\n__asm__ volatile ( \"mov ax,bx\" );"));
 
         ASSERT_EQUALS("void func1 ( ) ;", tokenizeAndStringify("void func1() __asm__(\"...\") __attribute__();"));
+
+        // #14250 - assembler function
+        const char code[] = "__asm void dostuff(uint32_t x) { "
+                            "%reg x "
+                            "  e_lis r7, (lf)@h "
+                            "%error "
+                            "}";
+        ASSERT_EQUALS("void dostuff ( uint32_t x ) { asm ( \"% reg x e_lis r7 , ( lf ) @ h % error\" ) ; }",
+                      tokenizeAndStringify(code));
     }
 
     // #4725 - ^{}