Motorola M68CPU32BUG Manuel d'utilisateur Page 9
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Noté. / 5. Basé sur avis des utilisateurs
DEBUG MONITOR DESCRIPTION
M68CPU32BUG/D REV 1 2-4
EXAMPLES Valid expressions.
Expression Result (in hex)
FF0011 FF0011
45+99 DE
&45+&99 90
@35+@67+@10 5C
%10011110+%1001 A7
88<<10 00880000
AA&F0 A0
The total value of the expression must be between 0 and $FFFFFFFF.
2.2.1.2 Address as a Parameter
Many commands use <ADDR> as a parameter. The syntax accepted by CPU32Bug is similar to
the one accepted by the MC68300 Family one-line assembler. All control addressing modes are
allowed. An address+offset register mode is also allowed.
Table 2-1 summarizes the address formats which are acceptable for address parameters in
debugger command lines.
DEBUG MONITOR DESCRIPTION
M68CPU32BUG/D REV 1 2-1
CHAPTER 2
DEBUG MONITOR DESCRIPTION
2.1 INTRODUCTION
CPU32Bug performs various operations in response to user commands entered at the keyboard.
When the debugger prompt CPU32Bug> appears on the terminal screen the debugger is ready to
accept commands.
2.2 ENTERING DEBUGGER COMMAND LINES
As the command line is entered it is stored in an internal buffer. Execution begins only after the
carriage return is entered. This allows the user to correct entry errors using the control characters
described in paragraph 1.7.
The debugger executes commands and returns the CPU32Bug> prompt. However, if the entered
command causes execution of user target code, (i.e., GO), then control may or may not return to
the debugger. This depends upon the user program function. For example, if a breakpoint is
specified, then control returns to the debugger when the breakpoint is encountered. The user
program also returns control to the debugger by means of the TRAP #15 function, RETURN
(described in paragraph 5.2.16). Also refer to the paragraphs in Chapter 3 which detail elements
of the GO commands.
In general debugger commands include:
• A command identifier (i.e., MD or md for the memory display command). Both
upper- or lower-case characters are allowed for command identifiers and options.
• At least one intervening space before the first argument.
• A port number for running with multiple ports.
• Any required arguments, as specified by command.
• An option field, set off by a semicolon (;) to specify conditions other than the default
conditions of the command.
• Some commands (MD, GO, T, etc) are repeatable, i.e., entering a carriage return
(<CR>) only causes the last command to be repeated and the address (<ADDR>), if
any, incremented. Thus after an MD command, sequential memory locations will be
displayed by entering a carriage return only. Or after entering a TRACE (T)
command, entering a carriage return (<CR>) only traces the next instruction.
• Multiple debugger commands may be entered on a single command line by separating
the commands with the explanation point (!) character.
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Freescale Semiconductor, Inc.
For More Information On This Product,
Go to: www.freescale.com
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- M68CPU32BUG DEBUG MONITOR 1
- USER’S MANUAL 1
- M68CPU32BUG/D 1
- TABLE OF CONTENTS 2
- LIST OF FIGURES 3
- LIST OF TABLES 3
- 1.5 SYSTEM RESTART 5
- CHAPTER 1 5
- GENERAL INFORMATION 5
- 1.1 INTRODUCTION 5
- 1.2 GENERAL DESCRIPTION 5
- 1.3 USING THIS MANUAL 6
- 1.6 MEMORY REQUIREMENTS 7
- CHAPTER 2 9
- DEBUG MONITOR DESCRIPTION 9
- 2.1 INTRODUCTION 9
- Freescale Semiconductor, Inc 10
- 2.6 FUNCTION CODE SUPPORT 13
- CHAPTER 3 16
- DEBUG MONITOR COMMANDS 16
- 3.1 INTRODUCTION 16
- BC Block of Memory Compare BC 17
- BF Block of Memory Fill BF 17
- BS Block of Memory Search BS 19
- BM Block of Memory Move BM 19
- BR Breakpoint Insert BR 20
- BV Block of Memory Verify BV 21
- DU Dump S-Records DU 23
- DC Data Conversion DC 23
- GN Go To Next Instruction GN 25
- GO Go Execute User Program GO 27
- HE Help HE 29
- MA Macro Define/Display MA 31
- MAE Macro Edit MAE 33
- MM Memory Modify MM 35
- MD Memory Display MD 36
- MS Memory Set MS 38
- PF Port Format PF 39
- PA Printer Attached PA 40
- RD Register Display RD 41
- RS Register Set RS 43
- RESET Cold/Warm Reset RESET 44
- RM Register Modify RM 44
- T Trace T 45
- SD Switch Directories SD 45
- TM Transparent Mode TM 48
- 4.2SOURCE PROGRAM CODING 51
- CHAPTER 4 52
- ASSEMBLER/DISASSEMBLER 52
- 4.1 INTRODUCTION 52
- 5.2 SYSTEM CALL ROUTINES 57
- CHAPTER 5 58
- SYSTEM CALLS 58
- 5.1 INTRODUCTION 58
- .ERASLN Erase Line .ERASLN 61
- .OUTSTR .OUTSTR 66
- .SNDBRK Send Break .SNDBRK 68
- .TM_RD Read Timer .TM_RD 70
- .WRITELN .WRITELN 71
- .WRITDLN .WRITDLN 71
- 6.3 UTILITIES 73
- CHAPTER 6 73
- DIAGNOSTIC FIRMWARE GUIDE 73
- 6.1 INTRODUCTION 73
- 6.2 DIAGNOSTIC MONITOR 73
- CPU B Instruction Test CPU B 75
- CPU CPU Tests For The MCU CPU 76
- CPU A Register Test CPU A 76
- CPU C Address Mode Test CPU C 77
- MT Memory Tests MT 78
- MT D Set Bus Data Width MT D 79
- MT A Set Function Code MT A 79
- MT B Set Start Address MT B 80
- MT C Set Stop Address MT C 80
- MT H Random Byte Test MT H 81
- MT E March Address Test MT E 81
- MT F Walk a Bit Test MT F 82
- MT G Refresh Test MT G 82
- MT I Program Test MT I 83
- MT J Test and Set Test MT J 84
- BERR Bus Error Test BERR 84
- APPENDIX A 85
- S-RECORD INFORMATION 85
- A.1 INTRODUCTION 85
- A.2 S-RECORD CONTENT 85
- A.3 S-RECORD TYPES 86
- A.4 S-RECORDS CREATION 86
- C.2 CPU32BUG CUSTOMIZATION 87
- APPENDIX B 87
- SELF-TEST ERROR MESSAGES 87
- B.1 INTRODUCTION 87
- APPENDIX C 88
- USER CUSTOMIZATION 88
- C.1 INTRODUCTION 88
- C.3 CUSTOMIZATION TABLE 90
- C.4 COMMUNICATION FORMATS 93
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