If any stacking or vector-fetch cycles are not terminated, the monitor will terminate
them by force. If this happens, the PC and SR may be displayed incorrectly by the
monitor. The same problem can result from stack memory that is not writeable.
Neither condition will prevent entry into the monitor, but you will not be able to
resume execution in the target program.
Exiting the foreground monitor
If the tests of the preceding paragraphs operate correctly, you should be able to
resume execution of the target program. You may want to take a trace of the
monitor exit to verify that everything is working correctly. Use the run command:
r
Software breakpoint entry into the foreground
monitor
The foreground monitor can also be entered via a software breakpoint. The
emulator will respond to any software breakpoint instruction in the code if
breakpoints are enabled, regardless of whether the breakpoint was inserted by the
emulator or not. Breakpoints are enabled by the following command:
bc -e bp
Only set breakpoints on the initial word of an instruction; otherwise, they will not
be executed, and they may alter an instruction, unintentionally. The emulator can
place a breakpoint using two methods. By default, the emulator will attempt to
modify memory to insert a breakpoint instruction at the address specified. If the
memory at the address specified is ROM or cannot be modified for some other
reason, special hardware resources on the emulator will interject a breakpoint
instruction when the associated address is fetched. You can tell if a hardware
resource was required to support a breakpoint by viewing memory at the breakpoint
address. If the BKPT instruction has replaced the normal instruction at that
address, a software breakpoint was used. If the normal instruction is still in the
Chapter 18: Connecting the Emulator to a Target System
Installing Emulator Features
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Страница 1: ...User s Guide for the Graphical User Interface MC68040 EC040 LC040 Emulator Analyzer HP 64783A B ...
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Страница 31: ...Part 1 Quick Start Guide 1 ...
Страница 33: ...1 Getting Started 3 ...
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Страница 71: ...2 Solving Quick Start Problems Solutions to problems you might face during the Getting Started procedures 41 ...
Страница 75: ...Part 2 Using The Emulator 45 ...
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Страница 141: ...4 Using the Emulator How to control the processor and view system resources 111 ...
Страница 227: ...5 Using the Emulation Bus Analyzer How to record program execution in real time 197 ...
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Страница 311: ...7 Making Software Performance Measurements How to make software performance measurements on your programs 281 ...
Страница 331: ...8 Configuring the Emulator 301 ...
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Страница 383: ...9 Solving Problems What to do when the emulator doesn t behave as expected 353 ...
Страница 397: ...Part 3 Reference 367 ...
Страница 399: ...10 Using Memory Management Understanding logical and physical emulation and analysis 369 ...
Страница 429: ...11 Emulator Commands The command syntax reference for the emulator softkey interface 399 ...
Страница 443: ...copy Chapter 11 Emulator Commands copy 413 ...
Страница 451: ...display Chapter 11 Emulator Commands display 421 ...
Страница 457: ...DISPLAY MEMORY Chapter 11 Emulator Commands DISPLAY MEMORY 427 ...
Страница 461: ...DISPLAY MMU Chapter 11 Emulator Commands DISPLAY MMU 431 ...
Страница 464: ...DISPLAY TRACE Chapter 11 Emulator Commands DISPLAY TRACE 434 ...
Страница 470: ...Examples end end locked end release_system See Also emul700 emulator_name help end Chapter 11 Emulator Commands end 440 ...
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Страница 514: ... SYMB Chapter 11 Emulator Commands SYMB 484 ...
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Страница 583: ...13 Setting X Resources 553 ...
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Страница 607: ...15 Microtec Language Tools Used With MC68040 Emulators Using the emulator analyzer with Microtec language tools 577 ...
Страница 613: ...16 Specifications and Characteristics 583 ...
Страница 627: ...Part 4 Concept Guide 597 ...
Страница 629: ...17 X Resources and the Graphical User Interface 599 ...
Страница 639: ...Part 5 Installation and Service Guide 609 ...
Страница 645: ...Chapter 18 Connecting the Emulator to a Target System Plugging The Emulator Into A Target System 615 ...
Страница 697: ...19 Installation and Service 667 ...
Страница 746: ...Chapter 19 Installation and Service Verifying the Installation 716 ...
Страница 755: ...20 Installing Updating Emulator Firmware 725 ...
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Страница 810: ...X server 554 604 X Window System 54 Index 780 ...