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Table of Contents
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CPU
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ace_mode
The CHARON-VAX emulated CPU is configured with the "ace_mode" parameter.
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RAM
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The CHARON-VAX memory subsystem is permanently loaded and has the logical name "ram".
size
| Parameter | size |
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| Type | Numeric |
| Value | Size of emulated memory in MB. |
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TOY
CHARON-VAX maintains its time and date via the "toy" (time-of-year) component. In order to preserve time and date while a virtual system is not running, the TOY component uses a binary file on the host system to store date and time relevant data. The name of the file is specified by the “container” option of the "toy" component.
container
| Parameter | container |
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| Type | Text string |
| Value | Specifies a name of a file in which CHARON-VAX preserves time and date during its “offline” period. This file also keeps some console parameters (such as default boot device). By default it is left unspecified.
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It is recommended to specify the full path to the file...
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ROM
The System Flash ROM file conserves specific parameters between reboots.
container
| Parameter | container |
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| Type | Text string |
| Value | Specifies the name of a file in which CHARON-VAX stores an intermediate state of its Flash ROM. This state includes, for example, most of the console parameters. By default it is left unspecified.
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Example:
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EEPROM
container
| Parameter | container | |
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| Type | Text string | |
| Value | A string specifying a file name to store content of EEPROM. Example:
This command enables EEPROM parameters (e.g., default boot drive) to be automatically saved to a specified file. The EEPROM file is created in the directory in which CHARON-VAX starts and is created or overwritten each time any parameter relevant to EEPROM content is changed.
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Auto boot
CHARON-VAX systems may be configured to boot the operating system automatically at start up.
MicroVAX3100, VAXstation 4000, VAX6310 and VAX 4000
Those models boot automatically if correct boot flags are set (and saved in the VAX console files) using the following command:
halt
| Console Parameter | halt | |
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| Description | Determines whether the MicroVAX3100, VAXstation 4000, VAX6310 and VAX 4000 boot automatically if correct boot flags are set (and saved in the VAX console files). The value is:
Example:
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MicroVAX II, MicroVAX 3600/3900 and VAXserver 3600/3900
The ROM of the MicroVAX II, MicroVAX 3600, MicroVAX 3900, VAXserver 3600 and VAXserver 3900 does not allow the VAX console to accept the command setting "auto-boot". Instead, automatic boot on startup can be specified in the CHARON-VAX configuration file as follows:
bdr boot
| Parameter | bdr boot | |
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| Type | Text string | |
| Value | Determines whether the MicroVAX II, MicroVAX 3600, MicroVAX 3900, VAXserver 3600 and VAXserver 3900 boot automatically if correct boot flags are set (and saved in the VAX console files).The value is:
Example:
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VAX66x0
xmi boot
| Parameter | xmi boot | |
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| Type | Text string | |
| Value | Determines whether the CHARON VAX66x0 startup procedure stops at the ">>>" prompt after self-tests. The values are:
Example:
The value "auto" enables automatic boot from a default boot specification previously configured in the VAX console.The value "manual" disables automatic boot once the self tests are passed. |
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| Please check that the "toy container" and "rom container" parameters are specified in the configuration file to store the boot flags. |
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