Motorola M68CPU32BUG Manuel d'utilisateur Page 23
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DEBUG MONITOR COMMANDS
M68CPU32BUG/D REV 1 3-18
DU Dump S-Records DU
Enter ALT-F1 again to close the log file TEST.MX. The log file contains the extra lines of
"Effective address" and "CPU32Bug", but they will not affect subsequent CPU32Bug load (LO)
commands, as it keys on the "S" character. The file could be edited to remove the extra lines, if
so desired.
DEBUG MONITOR COMMANDS
M68CPU32BUG/D REV 1 3-15
DC Data Conversion DC
3.8 DATA CONVERSION
DC <exp>I<addr>
Use the DC command to simplify an expression into a single numeric value. The equivalent
value is displayed in its hexadecimal and decimal representation. If the numeric value is
interpreted as a signed negative number (i.e., if the most significant bit of the 32-bit internal
representation of the number is set) then both the signed and unsigned interpretations are
displayed.
Use DC to obtain the equivalent effective address of an MCU device addressing mode.
EXAMPLES
CPU32Bug>DC 10<CR>
00000010 = $10 = &16
CPU32Bug>DC &10-&20<CR>
SIGNED : FFFFFFF6 = -$A = -&10
UNSIGNED: FFFFFFF6 = $FFFFFFF6 = &4294967286
CPU32Bug>DC 123+&345+@67+%1100001<CR>
00000314 = $314 = &788
CPU32Bug>DC (2*3*8)/4<CR>
0000000C = $C = &12
CPU32Bug>DC 55&F<CR>
00000005 = $5 = &5
CPU32Bug>DC 55>>1<CR>
0000002A = $2A = &42
The subsequent examples assume A0=00003000 and the following data resides in memory:
00003000 11111111 22222222 33333333 44444444 ....""""3333DDDD
CPU32Bug>DC (A0)<CR>
00003000 = $3000 = &12288
CPU32Bug>DC ([A0])<CR>
11111111 = $11111111 = &286331153
CPU32Bug>DC (4,A0)<CR>
00003004 = $3004 = &12292
CPU32Bug>DC ([4,A0])<CR>
22222222 = $22222222 = &572662306
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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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