Technical information

SEGA Confidential
8
5.0 Execution Using Sample Data
This chapter describes how to check the operation of the Virtual CD Emulator that
has been set up. The following conventions are used:
“[RET]” means to enter a return on the line.
means to insert a space.
Step 0-a
Install the VCD I/F Board in a PC before proceeding. Check the settings on the
following jumpers and write them down for later reference:
IRQ jumper setting (J3)
DMA jumper setting (J4)
I/O jumper setting (J5)
When there is already a VCD I/F Board installed in the system, Step 0-b is per-
formed. In such cases, Step 1 from the environment settings may not be necessary.
Read the explanation of Step 1.
Step 0-b
Turn on the power to the PC-compatible and wait for MS-DOS to boot. When MS-
DOS boots up, the MS-DOS prompt will appear. Go on to the next step after MS-
DOS starts up.
5.1 Preparing for Startup
For Users of Japanese DOS/V Only
The operation of the VCD software cannot be performed in Japanese MS-DOS mode,
so set DOS to English mode. U.S. MS-DOS users can skip to the VCDIO setting step.
Please type in the following command:
Step 1
C:\>CHEVUS[ENTER]
After the command is entered, the screen clears and a prompt will appear at the top
of the screen.
Next, set the system configuration parameter VCDIO. If the VCD emulator has
already been used on the PC, this variable may be set automatically when MS-DOS
boots up, so check to see whether it has already been set up. If the environment
variable is already set, stop this procedure and go to step 3.
The value of the environment variable VCDIO must reflect the setting of the VCD I/
F Board, as explained earlier in section 3.0, Setting the Jumper Pins. This example sets
the default value of the VCD I/F Board.