--- a/docs/ccguide/ccguide.docbook	Sat Nov 30 09:44:49 2002 +0000
+++ b/docs/ccguide/ccguide.docbook	Sat Nov 30 09:44:49 2002 +0000
@@ -85,7 +85,8 @@
  ]>
 <book id="cc-guide" lang="en">
 <bookinfo>
- <title>C Compiler User's Guide</title>
+ <title>Microware C Compiler User's Guide</title>
+ <subtitle>for OS-9</subtitle>
 
  <publisher>
   <publishername>Cleglen Publishing Limited</publishername>
@@ -126,7 +127,7 @@
 <preface>
 <title>Acknowledgements</title>
 <para>
-Thw OS-9 C Compiler was written by James McCosh with OS-9
+The OS-9 C Compiler was written by James McCosh with OS-9
 implementation assistance from Terry Crane and Kim Kempf. The
 Relocatable Assembler, Linker, and Profiler was edited by Wes Camden and
 Ken Kaplan.

--- a/docs/ccguide/chap1.chapter	Sat Nov 30 09:44:49 2002 +0000
+++ b/docs/ccguide/chap1.chapter	Sat Nov 30 09:44:49 2002 +0000
@@ -89,6 +89,10 @@
 <section>
 <title>Implementation-dependent Characteristics</title>
 <para>
+K &amp; R frequently refer to characteristics of the C language
+whose exact operations depend on the architacture and instruction
+set of the computer actually used. This section contains specific
+information regarding this version of C for the 6809 processor.
 </para>
 
 <section>
@@ -142,12 +146,25 @@
 
 <section>
 <title>Achieving Maximum Program Performance</title>
-<para>
-</para>
 
 <section>
 <title>Programming Considerations</title>
 <para>
+Because the 6809 is an 8/16 bit microprocessor, the compiler
+can generate efficient code for 8 and 16 bit objects (CHARs, INTs,
+etc.). However, code for 32 and 64 bit values (LONGs, FLOATs,
+DOUBLEs) can be at least four times longer and slower. Therefore
+don't use LONG, FLOAT, or DOUBLE where INT or UNSIGNED will do.
+</para>
+<para>
+The compiler can perform extensive evaluation of constant
+expressions provided they involve only constants of type CHAR, INT,
+and UNSIGNED. There is no constant expression evaluation at
+compile-time (except single constants and "casts" of them) where
+there are constants of type LONG, FLOAT, or DOUBLE, therefore,
+complex constant expressions involving these types are evaluated at
+run time by the compiled program. You should manually compute the
+value of constant expressions of these types if speed is essential.
 </para>
 </section>