Nintendo GAME BOY Programming Manual page 9

CHAPTER 1: SYSTEM .............................................................. 11
Revision History......................................................................10
1. GENERAL SYSTEM ...................................................................... 11
1.1 System Overview ..................................................................................... 11
1.2 Game Boy Block Diagram ....................................................................... 13
1.3 Memory Configuration............................................................................. 14
1.4 Memory Map ............................................................................................. 15
1.5 Feature Comparison ................................................................................ 16
1.6 Register Comparison............................................................................... 17
2. CPU................................................................................................18
2.1 Overview of CPU Features ...................................................................... 18
2.2 CPU Block Diagram ................................................................................. 20
2.3 Description of CPU Functions ................................................................ 22
2.4 CPU Functions (Common to DMG/CGB ) ............................................. 24
2.5 CPU Functions (Common to DMG/CBG ) ............................................. 28
2.6 CPU Functions (CGB only)...................................................................... 34
9
Chapter 1: System