Motorola MVME2700 Series Manuel d'utilisateur Page 25
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1General Information
PPCBug Overview
PPCBug is a powerful evaluation and debugging tool for systems built
around the Motorola PowerPC microprocessors. PPCBug firmware
consists of three parts:
❏ Command-driven user-interactive software debugger. It is hereafter
referred to as the debugger, which is described in this manual.
Debugging commands are available for loading and executing user
programs under complete operator control for system evaluation.
❏ Command-driven diagnostic package for testing and
troubleshooting the PowerPC board, which is hereafter called the
diagnostics. Refer to the PPCBug Diagnostics Manual for
information on the diagnostics and the diagnostics utilities and self-
tests.
❏ MPU, firmware, and hardware initialization routines, which are
described in this manual.
The PPCBug firmware is implemented on most Motorola PowerPC-based
products:
A PMCspan board added to any main board also interfaces with PPCBug.
They are collectively referred to in this manual as the PowerPC board or
board.
The debugger includes:
❏ Commands for display and modification of memory
❏ Breakpoint and tracing capabilities
❏ Assembler and disassembler useful for patching programs
Various PPCBug routines that handle I/O, data conversion, and string
functions are available to user programs through the System Call handler.
- 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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