Echelon Neuron - Manual (Page 5)

Table of Contents
Welcome ......................................................................................................... iii
Audience ........................................................................................................ iii
Related Documentation ................................................................................ iii
Introduction ....................................................................................................... 1
Introduction .................................................................................................... 2
Neuron Assembler Tools ................................................................................ 3
Neuron C Compiler for Assembly Programming ................................... 3
Neuron Assembler Command Line Tool ................................................ 3
Command Usage ............................................................................... 4
NAS Command Switches .................................................................. 4
Neuron Librarian Tool ............................................................................ 5
IzoT NodeBuilder Development Tool ..................................................... 6
Assembler Files .............................................................................................. 6
Source Files .............................................................................................. 6
Naming Convention .......................................................................... 6
File Format ........................................................................................ 7
Output Files ............................................................................................. 7
General Neuron Assembly Syntax ................................................................ 8
Labels ....................................................................................................... 9
Assembly Instructions ............................................................................. 9
Operands ................................................................................................ 10
Literal Constants ............................................................................ 10
Symbols ............................................................................................ 11
Expressions ...................................................................................... 11
Comments .............................................................................................. 14
Assembler Directives ................................................................................... 14
Interfacing with Neuron C Programs ......................................................... 14
Neuron Architecture for Neuron Assembly Programming .................. 15
Neuron Architecture .................................................................................... 16
Hardware Resources for Assembly Programs ............................................ 17
CPU Registers ........................................................................................ 17
General-Purpose Registers ............................................................. 18
Pointer Registers ............................................................................. 19
Flag Register ................................................................................... 21
Instruction Pointer .......................................................................... 21
Base-Page Register and Stack Registers ....................................... 21
Stacks ..................................................................................................... 22
Data Stack ....................................................................................... 22
Return Stack ................................................................................... 23
Stack Manipulation ............................................................................... 24
Segments ................................................................................................ 25
Using Neuron Chip Memory ................................................................. 26
Chips with Off-Chip Memory ......................................................... 26
Chips without Off-Chip Memory .................................................... 28
Chips with Auto-tuned Memory ..................................................... 29
Accessing Global and Static Data ......................................................... 30
Addressing Modes ........................................................................................ 30
Immediate .............................................................................................. 30
Absolute .................................................................................................. 30
Direct ...................................................................................................... 31
Neuron Assembly Language Reference v