From b93f9fbba43693e549dd2c5935a4f7622e5979be Mon Sep 17 00:00:00 2001
From: acqn <acqn163@outlook.com>
Date: Thu, 18 Aug 2022 22:51:23 +0800
Subject: [PATCH] Updated documents about the predefined macros.

---
 doc/cc65.sgml | 25 +++++++++++++++++++++----
 1 file changed, 21 insertions(+), 4 deletions(-)

diff --git a/doc/cc65.sgml b/doc/cc65.sgml
index 43039f713..683249bda 100644
--- a/doc/cc65.sgml
+++ b/doc/cc65.sgml
@@ -1202,17 +1202,34 @@ The compiler defines several macros at startup:
 
   This macro is defined if the target is the Commodore Plus/4 (-t plus4).
 
-  <tag><tt>__STDC_HOSTED__</tt></tag>
-
-  This macro is expands to the integer constant 1.
-
   <tag><tt>__SIM6502__</tt></tag>
 
   This macro is defined if the target is sim65 in 6502 mode (-t sim6502).
 
   <tag><tt>__SIM65C02__</tt></tag>
+
   This macro is defined if the target is sim65 in 65C02 mode (-t sim65c02).
 
+  <tag><tt>__STDC_HOSTED__</tt></tag>
+
+  This macro expands to the integer constant 1.
+
+  <tag><tt>__STDC_NO_ATOMICS__</tt></tag>
+
+  This macro expands to the integer constant 1 if the language standard is cc65 (--standard cc65).
+
+  <tag><tt>__STDC_NO_COMPLEX__</tt></tag>
+
+  This macro expands to the integer constant 1 if the language standard is cc65 (--standard cc65).
+
+  <tag><tt>__STDC_NO_THREADS__</tt></tag>
+
+  This macro expands to the integer constant 1 if the language standard is cc65 (--standard cc65).
+
+  <tag><tt>__STDC_NO_VLA__</tt></tag>
+
+  This macro expands to the integer constant 1 if the language standard is cc65 (--standard cc65).
+
   <tag><tt>__SUPERVISION__</tt></tag>
 
   This macro is defined if the target is the Supervision (-t supervision).