Инструкции для Excalibur electronic A-MNL-NIOSPROG-01.1

Содержание

• How to Contact Altera

  4
• Typographic Conventions

  5
• Contents

  7
• Overview

  13
  • Introduction

    13
    • Audience

      13
  • Nios CPU Overview

    13
  • Instruction Set

    14
  • Register Overview

    14
    • General-Purpose Registers

      14
    • The K Register

      16
    • The Program Counter

      16
    • Control Registers

      16
• STATUS (%ctl0)

  16
• Interrrupt Enable (IE)

  17
• Interrupt Priority (IPRI)

  17
• Current Window Pointer (CWP)

  17
• Condition Code Flags

  18
• ISTATUS (%ctl1)

  18
• WVALID (%ctl2)

  18
• SET_IE (%ctl9)

  19
  • Memory Access Overview

    19
    • Reading from Memory (or Peripherals)

      20
    • Writing to Memory (or Peripherals)

      21
  • Addressing Modes

    22
    • 5/16-bit Immediate Value

      22
    • Full Width Register-Indirect

      24
    • Partial Width Register-Indirect

      24
    • Full Width Register-Indirect with Offset

      25
    • Partial Width Register-Indirect with Offset

      25
  • Program-Flow Control

    26
    • Relative-Branch Instructions

      26
    • Absolute-Jump Instructions

      27
    • Trap Instructions

      27
    • Conditional Instructions

      27
  • Exceptions

    28
    • Exception Handling Overview

      28
    • Exception Vector Table

      28
    • External Hardware Interrupt Sources

      29
    • Internal Exception Sources

      29
      • Register Window Underflow

        29
      • Register Window Overflow

        30
    • Direct Software Exceptions (TRAP Instructions)

      31
    • Exception Processing Sequence

      31
      • Register Window Usage

        32
      • Status Preservation: ISTATUS Register

        32
    • Return-Address

      33
    • Simple and Complex Exception Handlers

      33
      • Simple Exception Handlers

        33
      • Complex Exception Handlers

        34
  • Pipeline Implementation

    34
    • Pipeline Operation

      35
    • Branch Delay Slots

      35
    • Direct CWP Manipulation

      36
• 32-Bit Instruction Set

  45
• ABS

  46
• ADD

  47
• ADDI

  48
• AND

  49
• ANDN

  50
• ASR

  51
• ASRI

  52
• BGEN

  53
• BR

  54
• BSR

  55
• CALL

  56
• CMP

  57
• CMPI

  58
• EXT16d

  59
• EXT16s

  60
• EXT8d

  61
• EXT8s

  62
• FILL16

  63
• FILL8

  64
• IF0

  65
• IF1

  66
• IFRnz

  67
• IFRz

  68
• IFS

  69
• JMP

  70
• LD

  71
• LDP

  72
• LDS

  73
• LRET

  74
• LSL

  75
• LSLI

  76
• LSR

  77
• LSRI

  78
• MOV

  79
• MOVHI

  80
• MOVI

  81
• MSTEP

  82
• MUL

  83
• NEG

  84
• NOP

  85
• NOT

  86
• OR

  87
• PFX

  88
• RDCTL

  89
• RESTORE

  90
• RET

  91
• RLC

  92
• RRC

  93
• SAVE

  94
• SEXT16

  95
• SEXT8

  96
• SKP0

  97
• SKP1

  98
• SKPRnz

  99
• SKPRz

  100
• SKPS

  101
• ST

  102
• ST16d

  103
• ST16s

  104
• ST8d

  105
• ST8s

  106
• STP

  107
• STS

  108
• STS16s

  109
• STS8s

  110
• SUB

  111
• SUBI

  112
• SWAP

  113
• TRAP

  114
• TRET

  115
• WRCTL

  116
• XOR

  117
• Index

  119