Motorola MVME2700 Series Manuel d'utilisateur Page 206
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Debugger Commands
3
M, MM - Memory Modify
Command Input
M ADDR [;[[B|H|W|S|D] [A] [N]]|[DI] ],
MM ADDR [;[[B|H|W|S|D] [A] [N]]|[DI] ]
Options
Description
The M and MM command are used to view and change the contents of
memory. The command reads and displays the contents of memory at the
specified address and prompts you with a question mark (?).
You may change the displayed value by typing a new value followed by
the Return key. To leave the memory location unchanged, press the Return
key without typing a new value. That memory location is closed and the
next location is opened.
You may also enter a special character, either at the prompt or after typing
new data, for
scrolling through the memory locations. The special
characters are:
Integer Data Types
B Byte
H Half-word
W Word
Floating Point Data Types
S Single Precision
D Double Precision
Other Options:
N Disable the read portion of the command
A Force alternate location accesses only
DI Enable the one-line assembler/disassembler. All other options are
invalid if this option is selected.
- User’s Manual 1
- Part 1 and 2 1
- Safety Summary 3
- Contents 5
- List of Figures 15
- List of Tables 17
- About This Manual 19
- Summary of Changes 20
- Overview of Contents 20
- Comments and Suggestions 22
- 1General Information 25
- PPCBug Implementation 26
- Memory Requirements 27
- Start-up 28
- General Information 30
- Auto Boot 37
- Length Contents Description 39
- Sample ROMboot Routine 40
- Network Auto Boot 42
- Restarting the System 43
- Reset/Abort 44
- Board Failure 45
- Disk I/O Support 46
- Blocks and Sectors 47
- Device Probe 47
- Disk I/O Error Codes 51
- Network I/O Support 52
- RARP and ARP Modules 54
- BOOTP Module 54
- TFTP Module 54
- Network Boot Control Module 54
- Network I/O Error Codes 55
- GCSR Method 59
- Bit3130292827262524 60
- Data and Address Sizes 61
- Byte Ordering 61
- 2Using the Debugger 63
- Command Arguments 64
- Entering Commands 67
- Command Options 68
- Control Characters 68
- Using the Debugger 70
- Exception Vectors 71
- Context Switching 72
- Floating Point Support 74
- Single Precision Real 75
- Double Precision Real 75
- Scientific Notation 76
- 3Debugger Commands 77
- Command Description 78
- 2/26/97 80
- AS - One-Line Assembler 81
- BC - Block of Memory Compare 82
- BF - Block of Memory Fill 84
- $2002F is clear 86
- H Half-word 87
- $000FFFFF 88
- BM - Block of Memory Move 89
- BR - Breakpoint Insert 92
- NOBR - Breakpoint Delete 92
- BS - Block of Memory Search 94
- BV - Block of Memory Verify 99
- Debugger Commands 100
- CACHE - Cache Control 102
- CM - Concurrent Mode 103
- NOCM - No Concurrent Mode 103
- A List all supported devices 104
- Examples 109
- CS - Checksum 111
- Read Data = 01000013 113
- PPC1-Bug> 113
- DC - Data Conversion 115
- DMA - Block of Memory Move 118
- Effective address: C1000000 120
- Effective address: C1FFFFFF 120
- DS - One-Line Disassembler 125
- DU - Dump S-Records 126
- ECHO - Echo String 128
- ENV - Set Environment 130
- . The offset 131
- More stuff in between 147
- GN - Go to Next Instruction 151
- Set a breakpoint 157
- HE - Help 159
- IBM - Indirect Block Move 162
- IDLE - Idle Master MPU 164
- IOC - I/O Control for Disk 165
- IOI - I/O Inquiry 168
- Flag Byte prompt 172
- T Format a disk track 173
- D Format the entire disk 173
- Example 2: 184
- LO - Load S-Records from Host 186
- MA - Macro Define/Display 191
- NOMA - Macro Delete 191
- MAE - Macro Edit 194
- MAL - Enable Macro Listing 196
- NOMAL - Disable Macro Listing 196
- MAR - Load Macros 197
- List macros 198
- Define macro ASM 198
- List all macros 198
- MAW - Save Macros 199
- MD, MDS - Memory Display 201
- Example 5: 203
- Example 6: 203
- Example 7: 204
- Example 8: 204
- MENU - System Menu 205
- M, MM - Memory Modify 206
- MMD - Memory Map Diagnostic 210
- MMGR - Memory Manager 212
- MS - Memory Set 216
- MW - Memory Write 217
- Example 3: 218
- NAB - Network Auto Boot 219
- NAP - NAP MPU 220
- NIOC - Network I/O Control 227
- Network I/O transactions 232
- NIOP - Network I/O Physical 233
- 00? <Return> 242
- NPING - Network Ping 244
- Look at location $20000 248
- To look at location $20000 248
- PA - Printer Attach 249
- NOPA - Printer Detach 249
- Command Input 251
- Arguments 251
- PF - Port Format 259
- NOPF - Port Detach 259
- N Disabled 261
- NOPF Port Detach 263
- PFLASH - Program FLASH Memory 264
- RB - ROMboot Enable 269
- NORB - ROMboot Disable 269
- RD - Register Display 271
- REMOTE - Remote 277
- RESET - Cold/Warm Reset 278
- RL - Read Loop 280
- RM - Register Modify 281
- RS - Register Set 284
- RUN - MPU Execution/Status 286
- SD - Switch Directories 288
- SET - Set Time and Date 289
- SROM - SROM Examine/Modify 290
- SYM - Symbol Table Attach 294
- NOSYM - Symbol Table Detach 294
- Offset Field Description 295
- Example 4: 296
- T - Trace 299
- Trace next instruction: 301
- Trace the next instruction: 302
- TA - Terminal Attach 303
- TIME - Display Time and Date 304
- TM - Transparent Mode 305
- Initialize IP and R3, R4: 308
- WL - Write Loop 318
- 4One-Line Assembler/ 319
- Disassembler 319
- Directives 320
- Source Program Coding 321
- These are only recognized 323
- Instructions 324
- Addressing Modes 326
- SYSCALL System Call Directive 328
- Entering a Source Line 330
- Entering Branch Operands 331
- Assembler Error Messages 332
- 5System Calls 333
- System Call Routines 334
- System Call function 335
- .INSTAT 340
- <CR>. The 341
- <CR> 341
- .READSTR 342
- .READLN 344
- .CHKBRK 345
- Field descriptions: 347
- .DSKCFIG 349
- Device Descriptor Packet 350
- Table 5-8. CFGA Fields 357
- .DSKFMT 359
- Entry Conditions 360
- .DSKCTRL 362
- System Calls 364
- .NETCFIG 366
- .NETFOPN 372
- .NETFRD 374
- .NETCTRL 376
- .OUTCHR 379
- <CR><LF> sequence 380
- <CR><LF> 380
- .WRITELN 381
- .ERASLN 383
- .WRITDLN 384
- .SNDBRK 386
- .RTC_TM 388
- .RTC_DT 389
- .RTC_DSP 390
- .RTC_RD 391
- .REDIR_I 393
- .REDIR_O 393
- .RETURN 394
- .BINDEC 395
- .CHANGEV 396
- .STRCMP 397
- .MULU32 398
- .DIVU32 399
- .CHK_SUM 400
- .BRD_ID 401
- .ENVIRON 404
- .PFLASH Function 408
- .DIAGFCN 411
- F 413
- Example 2: .TESTSTAT 419
- Example 3: .MEMSTAT 420
- Example 4: .ST_NMLIST 421
- .SIOPEPS 423
- Size of the scripts array 424
- .FORKMPU Function 425
- .FORKMPUR Function 426
- .IDLEMPU Function 431
- I/O Control Structure 435
- .IOINFORM 437
- Port Control Structure 438
- .IOCONFIG 439
- .IODELETE 440
- .SYMBOLTA 442
- .SYMBOLTD 444
- ARelated Documentation 445
- Document Title and Source 447
- Publication 447
- Related Documentation 448
- Related Specifications 453
- BSystem Menu 457
- Go to System Diagnostics 458
- Initiate Service Call 458
- Display System Test Errors 458
- Dump Memory to Tape 458
- Menu Items 459
- Tape Dump Example: 460
- Operation 461
- System Menu 462
- Concurrent mode (Y/N)? 463
- Manual Connection 465
- Terminal Connection 466
- CPPCBug Messages 467
- Error Messages 468
- Other Messages 469
- DS-Record Format 471
- S-Record Types 472
- Creating S-Records 473
- S00A00006765745F7274630D 474
- S20C0400200000000000000000CF 474
- S804040000F7 474
- EDisk and Tape Controllers 477
- Disk and Tape Controllers 480
- FDisk Status Codes 481
- ATAPI (CD-ROM Drives) 482
- SCSI Firmware Status Codes 483
- Disk Status Codes 486
- GEstablishing Network 489
- Connections with PPCBug 489
- M). If this value is invalid 490
- HNetwork Communication Status 491
- NAB 3-143 503
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