a2heaven RamExpress II+, Руководство пользователя

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RamExpress II+ User’s Guide © a2heaven.com, 22 Nov 2016 Version 1.01 P a g e | 9
Using Build in Clock
ProDOS does not automatically recognize the clock. However, the ProDOS
compatible drivers on the RamExpress II+ disk allow ProDOS to recognize and
use the clock information. When a ProDOS startup disk is booted, the
operating-system file, PRODOS, is copied from the disk to a protected area of
the computer's memory. The program,
DCLOCK.SYSTEM , will install the
required clock driver to the image of ProDOS in memory. When executed, the
DCLOCK.SYSTEM program will first check for the presence of a clock and, if
found, install the clock driver. Then it will execute the next system program (file
type of SYS and a filename suffix of .SYSTEM) in the disk's directory.
Boot the Disk
Boot the RamExpress II+ disk. You should see the message
DClock Copyright
(c) 19— Applied Engineering
in the upper left corner of the screen,
DCLOCK.SYSTEM installs the proper drivers to the image of ProDOS in
memory and then runs the BASIC program. The BASIC program sends the
message. Loading drivers... and brings up the Time Utilities Menu.
" Cannot find clock " Message
If you ever get the message Cannot find clock , it probably means that the
clock has been discharged or is improperly installed. If the clock has been
discharged but is properly installed, the program will find it and set the time
and date to zeros. Set the correct time and date as described below, then
choose the option install clock driver in memory.
If the program does not find the clock, check the clock's installation then try
booting the RamExpress II+ disk again.
Set the time
Select the option. Set the Time. Follow the on-screen directions to set the date
and time in the format:
Month (01 - 12)/Day (01 - 31)/Year (00 - 99)
Hour (00 - 23)/Minute (00 - 59)/Second (00 - 59)
❖
Note: To enter PM, add 12 hours to the corresponding