Technical information

SEGA Confidential
18
Starting the VCD Emulator
After creating CD configuration files or the CD image file, start the VCD emulator.
The user will be able to tell the mode in which the emulation will be performed
based on which program (
VCDPRE.EXE or VCDBUILD.EXE) was launched to create the
emulation files. After the VCD starts, the operation takes place mainly on the target
box. The VCD emulator checks only the playback status and messages.
Update Operation
If the emulation results indicate that the disc content or code require updates, use
the appropriate CD tool to revise them. When a revision changes the size of the
content or program files, the CD configuration must also be revised using
VCDPRE.EXE or VCDBUILD.EXE. Even if there are no changes in size, the CD image
must be modified when real time emulation is executed. Verification of the new disc
image can be performed with the direct DOS file access emulation mode. Emulation
is performed by starting up the Virtual CD Emulator.
Partial Update
Run the VCDUTL.EXE program. Partial CD Image Update and Real Time Emulation
modes can be selected as execution options.