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54 lines
1.9 KiB
TeX
54 lines
1.9 KiB
TeX
D I G I T A L R E S E A R C H
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P. O. Box 579, Pacific Grove, CA 93950, (408) 649-3896
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*** MP/M 1.0 ***
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Application Note #04
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Customizing the MP/M Sign-on Message
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------------------------------------
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The MP/M 1.0 sign-on message can be customized to include an
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ASCII string of your choice which is up to 35 characters. The
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string must be terminated with an ASCII '$' character.
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The following steps can be used to customize the MP/M sign-on
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message:
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1.) Obtain access to CP/M version 1.4 or 2.0.
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2.) Read the XDOS.SPR file into memory using either DDT
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or SID.
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A>SID XDOS.SPR
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SID VERS 2.0
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NEXT PC
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2600 0100
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3.) Store your customized sign-on message beginning at
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location 022AH. Note that the message should probably begin
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with some <cr> and <lf>'s and that it must be terminate with
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a '$' character.
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-S22A
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022A -- 0D
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022B -- 0A
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022C -- "New sign-on message$
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0240 -- .
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4.) Return to the CP/M console command processor (CCP) by
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executing a jump to location zero and then save the updated
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memory image onto a disk file using the CP/M 'SAVE' command.
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-G0
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A>SAVE 37 XDOS.SPR ; 37 = 25H
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5.) Run the GENSYS program which will integrate the new
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XDOS.SPR into the MPM.SYS file.
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