Insert Cartridge... does the same as the toolbar button; see the “Insert Cartridge” toolbar button description for details.
Use CD Unit does the same as the toolbar button; see the “Use CD Unit” toolbar button description for details.
Configure launches the Configure dialogue. A full description is given in the “Configure Dialog” section below.
-Status launches a window with emulator internal information.
+Status launches a window with emulator internal information. It includes M68000 cycles counters.
Exit quits Virtual Jaguar immediately. You can also quit Virtual Jaguar by pressing Ctrl + Q on your keyboard.
This menu has the following options:
@@ -175,12 +175,14 @@When started in Debugger mode, a specific tab is made available in the configuration dialogue which gives you the following options:
Disassembly lines represent the number of disassembly lines to display in the M68000 tracing window. This doesn't include the number of source lines displayed.
+Source file search paths may be used in case of the debugger cannot find files path in the DWARF information.
Display M68000 opcode allows or not the opcode display. Can be useful in case of user prefers to see the disassembly only.
Display HW labels allows or not the name of the Jaguar hardware registers as reported in the official documentation.
Display source filename allows or not the source code filename display depend the disassembly in the M68000 tracing window.
@@ -191,11 +193,13 @@ROM to load is the path to a Jaguar executable file that will be loaded into the Jaguar’s cartridge memory space at $800000 (Alpine ROM images will load at $802000). As a convenience to coders, this file can be of any length, as long as it fits into the cartridge memory space (a file of this type is treated as an Alpine ROM and is loaded at $802000). The file thus loaded into memory will not be executed.
ABS to load is the path to a Jaguar executable file that will be loaded in the Jaguar’s main RAM. This file must have valid headers, otherwise Virtual Jaguar won’t be able to load it. Assuming the file exists and has the correct headers in it, it will be loaded and run when Virtual Jaguar is first run.
Windows refresh is the refresh rate for open windows. The smaller the rate, the faster the refresh window will occur. A 0 value will disable the refresh operations.
Allow writes to cartdridge ROM is the option allowing or not the cartdridge ROM writing. If allowed, emulator won't interfere but when turned off the emulator will display a dialog box with proper information, at this point user can allow to continue or stop the code.
+Allow M68000 exception catch is the option allowing or not the exception catch from the M68000. If allowed, the emulator will display a dialog box with proper information and user will have the choice to continue or to stop the code.
Also, when in Debugger mode, extra toolbar buttons are defined (also found under the extra “Debug” menu) and also include the Alpine mode features:
Disable all breakpoints, and also disable BPM.
Display a partial table of the M68000 exception vectors as reported by Motorola.
+Display the video output window.
Display all global variables used by the Jaguar code. It uses the available DWARF debug information.
+Display all global variables used by the Jaguar code. It uses the available DWARF debug information. It has a search feature to look for a specific global variable.
Display the local variables of the traced M68000 function. It uses the available DWARF debug information, and the A6 register to point on the stack.
In the debugger mode, the main window doesn't display anymore the video output; it is replaced by a source code files viewer and a disassembly window made of tabs to allow tracing / display of code.
Source code files
It is available for convenience reason; it display all the filenames found in the DWARF information. It is turned off by default but user can turn it on.
+Sources tab
+This tab is populated by C, or asm, source files following the M68000 program counter (PC). User can trace source code within the tab.
Disassembly tabs
There are 3 tabs, each of them is dedicated to a specific processor (M68000, GPU, and DSP). Currently, only the M68000 is tracable, others 2 display only the code pointed by their respective program counter (PC).
Also, when in Alpine mode, extra toolbar buttons are defined (also found under the extra “Debug” menu):
@@ -258,6 +267,7 @@This window lets you inspect Virtual Jaguar’s emulated memory space. The PgDn key will advance the top of the window’s memory location by 480 bytes, and PgUp will go back by the same amount. The Plus (+) key will advance the top of the window’s memory location by 16 bytes, and Minus (-) will go back by the same amount. Entering a memory location, in hexadecimal, in the edit field and pressing the Go button will display memory from that location. It can be dismissed by clicking on the “X” in the upper corner of the dialog, or by pressing the Esc key on your keyboard.
@@ -271,6 +281,8 @@This window provides a disassembly of 68000 opcodes. It can be dismissed by clicking on the “X” in the upper corner of the dialog, or by pressing the Esc key on your keyboard.
This window provides a disassembly of RISC opcodes. It can be dismissed by clicking on the “X” in the upper corner of the dialog, or by pressing the Esc key on your keyboard.
+This window provides a list of the hardware registers content; for the moment, only the blitter is displayed. It can be dismissed by clicking on the “X” in the upper corner of the dialog, or by pressing the Esc key on your keyboard.
The aforementioned options will only work when Virtual Jaguar is run in Alpine or Debugger mode, that is, when the --alpine or --debugger flag is passed in. If you do not pass such flag, Virtual Jaguar will run as it normally does, i.e., as a stock Jaguar, and nothing will be loaded by default.
If you’re wondering why some cartridges have labels in the “Insert Cartridge...” dialogue and some don’t, read on...