To enable/disable the memory management unit
(MMU)
•
Choose "Yes" or "No" for the "Enable Memory Management Unit" configuration
option.
Choosing "Yes" allows the MMU of the emulation processor to control placement
of the target program in physical memory. The target system will be able to enable
and disable the MMU during program execution by using the MDIS signal.
Choosing "No" causes the emulator to disable the MMU of the emulation processor
by asserting the MDIS signal.
The MC68040 MMU can manage a program that occupies a large space in logical
(virtual) memory while running it from a much smaller space in physical memory.
When you operate the emulation processor with the MMU enabled, you must
ensure that the foreground monitor is contained in memory space that:
•
is not write-protected.
•
is mapped 1:1 (logical address = physical address). The reason that this
mapping is important is that the MMU may be enabled or disabled at any time
during program execution; whether or not the MMU is enabled, the emulator
must be able to enter the foreground monitor to provide emulation features.
Refer to the section titled "Mapping The Foreground Monitor For Use With
The MC68040 MMUs" later in this chapter.
Chapter 8: Configuring the Emulator
Configuring the Emulator General Items Screen
333
Summary of Contents for 64783A
Page 30: ...xxx ...
Page 31: ...Part 1 Quick Start Guide 1 ...
Page 33: ...1 Getting Started 3 ...
Page 70: ...40 ...
Page 75: ...Part 2 Using The Emulator 45 ...
Page 140: ...110 ...
Page 141: ...4 Using the Emulator How to control the processor and view system resources 111 ...
Page 227: ...5 Using the Emulation Bus Analyzer How to record program execution in real time 197 ...
Page 290: ...260 ...
Page 331: ...8 Configuring the Emulator 301 ...
Page 382: ...352 ...
Page 383: ...9 Solving Problems What to do when the emulator doesn t behave as expected 353 ...
Page 397: ...Part 3 Reference 367 ...
Page 399: ...10 Using Memory Management Understanding logical and physical emulation and analysis 369 ...
Page 429: ...11 Emulator Commands The command syntax reference for the emulator softkey interface 399 ...
Page 443: ...copy Chapter 11 Emulator Commands copy 413 ...
Page 451: ...display Chapter 11 Emulator Commands display 421 ...
Page 457: ...DISPLAY MEMORY Chapter 11 Emulator Commands DISPLAY MEMORY 427 ...
Page 461: ...DISPLAY MMU Chapter 11 Emulator Commands DISPLAY MMU 431 ...
Page 464: ...DISPLAY TRACE Chapter 11 Emulator Commands DISPLAY TRACE 434 ...
Page 480: ...modify Chapter 11 Emulator Commands modify 450 ...
Page 501: ...set Chapter 11 Emulator Commands set 471 ...
Page 514: ... SYMB Chapter 11 Emulator Commands SYMB 484 ...
Page 582: ...552 ...
Page 583: ...13 Setting X Resources 553 ...
Page 598: ...568 ...
Page 606: ...576 ...
Page 613: ...16 Specifications and Characteristics 583 ...
Page 627: ...Part 4 Concept Guide 597 ...
Page 629: ...17 X Resources and the Graphical User Interface 599 ...
Page 639: ...Part 5 Installation and Service Guide 609 ...
Page 697: ...19 Installation and Service 667 ...
Page 746: ...Chapter 19 Installation and Service Verifying the Installation 716 ...
Page 755: ...20 Installing Updating Emulator Firmware 725 ...
Page 762: ...732 ...
Page 778: ...748 ...
Page 810: ...X server 554 604 X Window System 54 Index 780 ...