Motorola DSP56305 Manuel d'utilisateur Page 105
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- Table des matières
- MARQUE LIVRES
Noté. / 5. Basé sur avis des utilisateurs
C-2 Optimizing DSP56300/DSP56600 Applications MOTOROLA
Using the Profiler
C.3 THE PROFILING REPORT
The profiling report is provided in two formats: ASCII and
Postscript. Assuming the profiler was invoked using the command
‘log p filename’, the ASCII report in written into the file named
filename.log and the Postscript report is written into the file named
filename.ps. The profile report consists of several sections, each
pertaining to some metrics of the DSP program. The following
sections describe each of the report sections.
C.3.1 Basic Report
The basic section of the report consists of the static and dynamic
subsections. The static subsection describes how many data words
(initialized and uninitialized) and how many instruction words the
program occupies. The dynamic subsection describes how many
data and instruction words were moved between the DSP core and
memory during execution of the DSP program. It also describes the
number of instructions executed, the number of clock cycles
executed, and the number of clock cycles spent on stalls and
interlocks. Example C-1 depicts the basic report section (in ASCII
format).
Example C-1 Typical Basic Profiler Report
Basic Profile
Static
Initialized data size : 0 words
Uninitialized data size : 3111 words (X=1984, Y=1127, P=0)
Code size : 15577 words
Instructions : 6708
Dynamic
Total cycle count : 33375394 cycles
Stall cycle count : 849568 cycles
Code size : 27041412 words
Instructions : 25836700
Function calls : 132977
Data memory references
Memory Read Write
-----------------------------------
Internal 22102025 3505689
External 1188007 17424
Internal ROM 0 --
External ROM 0 --
- DSP56300/DSP56600 1
- Digital Signal 1
- Processors 1
- TABLE OF CONTENTS 2
- LIST OF FIGURES 6
- LIST OF TABLES 7
- INTRODUCTION 8
- 1.2 DSP56600 CORE FAMILY 9
- Table 1-1 11
- Introduction 12
- Description and Use 13
- Application Note Structure 14
- 1.4.3 Appendixes 15
- DATA OPERATIONS 16
- DSP56300 Family Manual 21
- 2.3 THE MAX INSTRUCTION 22
- 2.4 USING THE BARREL SHIFTER 23
- Data Operations 24
- Using the barrel shifter 24
- DSP56300 26
- DSP56600 Family 26
- Double precision arithmetic 27
- INSTRUCTIONS 28
- PROGRAM CONTROL 30
- Program Control 31
- Hardware Loops 31
- 3.2 THE HARDWARE STACK 32
- DSP56600 Family Manuals 35
- 3.3 USING THE STACK EXTENSION 36
- Using the Stack Extension 37
- EXTENSION 39
- Conditional DALU Instructions 40
- 3.6 PC RELATIVE INSTRUCTIONS 42
- DSP56600 Family Manual 43
- 3.7 USING FAST INTERRUPTS 46
- Using Fast Interrupts 48
- USING THE DMA 50
- Using the DMA 51
- Using Slow, Low-Cost Memories 54
- 4.4 SERVICING A PERIPHERAL 55
- Servicing a Peripheral 56
- Section 5 62
- 5.1 THE INSTRUCTION CACHE 62
- 5.1.1 Cache Sectors 64
- The Instruction Cache 65
- 5.1.3 Cache Burst Mode 67
- 5.2 MEMORY SWITCH 70
- Memory Switch 71
- 5.3 USING THE BOOTSTRAP ROM 72
- Using the Bootstrap ROM 73
- PIPELINE INTERLOCKS 74
- Pipeline Interlocks 75
- Data ALU Pipeline Interlocks 75
- DSP56000 Family Manual 76
- INTERLOCKS 80
- Interlocks 80
- 6.3 STACK EXTENSION DELAYS 81
- Interlocks? 83
- COMPACT OPCODE USE 86
- Instructions 87
- Compact Opcode Use 89
- Cycle Count of an Instruction 89
- 7.2 ADDRESSING MODES 90
- 7.2.2 Short Addressing Mode 91
- 7.2.3 Short Immediate Mode 91
- 7.2.5 Register Addressing 92
- 7.2.6 Word Count 92
- 7.3 PERIPHERAL ADDRESSING 92
- 7.4 SPECIAL INSTRUCTIONS 93
- 7.4.1 Dual Data Spaces 93
- 7.4.3 Clearing Registers 94
- Special Instructions 95
- SAVING POWER 96
- A.1.2 Stop Standby Mode 97
- A.1.3 Low-Power Clock Divider 97
- Saving Power 98
- Disabling Functional Blocks 98
- DEBUG AND TEST SUPPORT 100
- B.2 JTAG PORT FEATURES 101
- B.3 ADDRESS TRACING 102
- Debug and Test Support 103
- Address Tracing 103
- USING THE PROFILER 104
- C.3 THE PROFILING REPORT 105
- C.3.1 Basic Report 105
- C.3.2 Symbol Report 106
- Using the Profiler 107
- C.3.4 Code Coverage Report 108
- C.3.5 Basic Subroutine Report 109
- C.3.8 Subroutine Call Report 111
- C.4 USING THE PROFILE REPORT 111
- How to reach us: 112
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