Echelon Neuron Manual do Utilizador descarregar pdf (Página 11)

Introduction

This chapter introduces the Neuron assembly language and

the Neuron Assembler.

Neuron Assembly Language Reference 1

1 2 ... 6 7 8 9 10 11 12 13 14 15 16 ... 236 237

Neuron Assembly 1
Language Reference 1
Welcome 3
Audience 3
Related Documentation 3
Table of Contents 5
Introduction 11
Neuron Assembler Tools 13
Command Usage 14
NAS Command Switches 14
Neuron Librarian Tool 15
Assembler Files 16
Source Files 16
Naming Convention 16
File Format 17
Output Files 17
Assembly Instructions 19
Operands 20
Literal Constants 20
Symbols 21
Expressions 21
Constant Expressions 23
Comments 24
Assembler Directives 24
Assembly Programming 25
Neuron Architecture 26
CPU Registers 27
General-Purpose Registers 28
Pointer Registers 29
Flag Register 31
Instruction Pointer 31
Data Stack 32
Return Stack 33
Stack Manipulation 34
Segments 35
Using Neuron Chip Memory 36
Chips with Off-Chip Memory 36
Chips with Auto-tuned Memory 39
Addressing Modes 40
Immediate 40
Absolute 40
Implicit 41
Pointer Direct 41
Indirect Relative 41
Indirect Indexed 42
DSP Relative 42
BP Relative 43
BP Indexed 43
Indirect 43
Relative 43
Function 45
Stack-Effect Comments 51
Multi-Byte Values 51
Pointer Values 51
Conditional Values 51
Showing the Return Stack 52
Integrating the Program 52
Assembling the Program 53
Linking the Program 54
Debugging the Program 54
Interfacing with a Neuron C 57
Application 57
Overview 58
Naming Conventions 58
Function Parameters 58
Calling Conventions 59
Data Representation 61
Structures and Unions 62
Bitfields 62
Neuron Assembly Language 69
Instruction Statements 69
ADC (Add with Carry) 74
ADD (Add) 75
ADD_R (Add and Return) 76
ALLOC (Allocate) 77
AND (And) 78
AND_R (And and Return) 79
BR (Branch) 80
BRC (Branch If Carry) 81
BRF (Branch Far) 82
BRNC (Branch If Not Carry) 83
BRNEQ (Branch If Not Equal) 84
BRNZ (Branch If Not Zero) 86
BRZ (Branch If Zero) 87
CALL (Call Near) 88
CALLF (Call Far) 89
CALLR (Call Relative) 90
DEC (Decrement) 94
DIV (Divide) 95
DROP (Drop from Stack) 96
INC (Increment) 98
Done 99
MUL (Multiply) 100
NOP (No Operation) 101
NOT (Not) 102
OR (Or) 103
OR_R (Or and Return) 104
POP (Pop from Stack) 105
] DA 2 7 None 106
] D9 2 7 None 106
] DB 2 7 None 107
POPD (Pop Pointer Direct) 110
Return Stack) 111
PUSH (Push onto Stack) 112
PUSH [1][offset] 113
98 2 7 None 114
] 99 2 7 None 114
] 9A 2 7 None 114
] 9B 2 7 None 114
PUSHD (Push Pointer Direct) 117
Data Stack) 119
PUSHS (Push Short) 120
RET (Return from Call) 121
SBC (Subtract with Carry) 124
SBR (Short Branch) 125
SBRZ (Short Branch If Zero) 129
SHL (Shift Left) 131
SHR (Shift Right) 133
SUB (Subtract) 135
XCH (Exchange) 137
XOR (Exclusive Or) 138
Neuron Assembler Directives 141
ELSE (Conditional Assembly) 147
END (Assembly Control) 148
ENDIF (Conditional Assembly) 149
EQU (Equate Symbol) 150
ERROR (Conditional Assembly) 151
EXPORT (Export Symbol) 152
IF (Conditional Assembly) 153
IFDEF (Conditional Assembly) 154
INCLUDE (Assembly Control) 157
LIBRARY (Include Library) 158
LIST (Listing Control) 160
NOLIST (Listing Control) 161
ORG (Segment Control) 162
PAGE (Listing Control) 163
RADIX (Default Radix) 164
RESOURCE (Resource Control) 166
SEG (Segment Control) 167
SUBHEAD (Listing Control) 168
System-Provided Functions 169
Overview of the Functions 170
_add16 (Add, 16 Bit) 171
_add16s (Add Signed, 16 Bit) 171
-- value(2)+offset) 172
_and16 (And, 16 Bit) 173
_dec16 (Decrement, 16 Bit) 173
_div16 (Divide, 16 Bit) 174
_div8 (Divide, 8 Bit) 175
_get_sp (Get Stack Pointer) 179
_inc16 (Increment, 16 Bit) 179
_less16 (Less Than, 16 Bit) 184
_less8 (Less Than, 8 Bit) 184
_log8 (Logical Value, 8 Bit) 185
Bits to 16 Bits) 187
Converts 8 Bits to 16 Bits) 187
_max8 (Maximum Value, 8 Bit) 189
_memcpy (Copy Memory) 190
_memset (Set Memory) 190
_memset1 (Set Memory at P0) 191
_min8 (minimum Value, 8 Bit) 192
_mod8 (Modulo, 8 Bit) 193
_mul16 (Multiply, 16 Bit) 193
_mul8 (Multiply, 8 Bit) 194
_not16 (Not, 16 Bit) 196
_or16 (Or, 16 Bit) 197
16 Bit) 198
Offset, 16 Bit) 198
-- value, …, value, …) 199
NEXT, 16 Bit) 200
_sub16 (Subtract, 16 Bit) 203
Neuron Assembly Instructions 205
Listed by Mnemonic 205
Instructions by Mnemonic 206
Listed by Hexadecimal Opcode 217
Instructions by Opcode 218
1 2 7 224
Reserved Keywords 229
Keywords 230

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