SECTION CONTENTS
6 - 2 INSTRUCTION SET INTRODUCTION
MOTOROLA
SECTION 6.1 INSTRUCTION SET INTRODUCTION ...................................... 3
SECTION 6.2 SYNTAX ..................................................................................... 3
SECTION 6.3 INSTRUCTION FORMATS ........................................................ 3
6.3.1 Operand Sizes .................................................................................... 5
6.3.2 Data Organization in Registers ........................................................... 6
6.3.2.1 Data ALU Registers ...................................................................... 6
6.3.2.2 AGU Registers .............................................................................. 7
6.3.2.3 Program Control Registers ........................................................... 8
6.3.3 Data Organization in Memory ............................................................. 9
6.3.4 Operand References ..........................................................................11
6.3.4.1 Program References ..................................................................... 11
6.3.4.2 Stack References .........................................................................11
6.3.4.3 Register References ..................................................................... 11
6.3.4.4 Memory References .....................................................................11
6.3.4.4.1 X Memory References ............................................................ 11
6.3.4.4.2 Y Memory References ............................................................ 12
6.3.4.4.3 L Memory References .............................................................12
6.3.4.4.4 YX Memory References .......................................................... 12
6.3.5 Addressing Modes .............................................................................. 12
6.3.5.1 Register Direct Modes .................................................................. 13
6.3.5.1.1 Data or Control Register Direct ............................................... 13
6.3.5.1.2 Address Register Direct .......................................................... 13
6.3.5.2 Address Register Indirect Modes .................................................. 13
6.3.5.3 Special Addressing Modes ........................................................... 14
6.3.5.3.1 Immediate Data .......................................................................14
6.3.5.3.2 Absolute Address .................................................................... 14
6.3.5.3.3 Immediate Short ......................................................................14
6.3.5.3.4 Short Jump Address ...............................................................14
6.3.5.3.5 Absolute Short ........................................................................14
6.3.5.3.6 I/O Short ..................................................................................16
6.3.5.3.7 Implicit Reference ................................................................... 16
6.3.5.4 Addressing Modes Summary ........................................................ 20
SECTION 6.4 INSTRUCTION GROUPS .......................................................... 20
6.4.1 Arithmetic Instructions ........................................................................22
6.4.2 Logical Instructions ............................................................................. 23
6.4.3 Bit Manipulation Instructions ............................................................... 24
6.4.4 Loop Instructions ................................................................................24
6.4.5 Move Instructions ................................................................................26
6.4.6 Program Control Instructions .............................................................. 27