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65 lines
2.1 KiB
QBasic
65 lines
2.1 KiB
QBasic
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' Copyright (c) 2005,2006 Mark Fullmer
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' Copyright (c) 2009 Mark Fullmer and the Ohio State University
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' All rights reserved.
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'
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' Redistribution and use in source and binary forms, with or without
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' modification, are permitted provided that the following conditions
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' are met:
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' 1. Redistributions of source code must retain the above copyright
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' notice, this list of conditions and the following disclaimer.
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' 2. Redistributions in binary form must reproduce the above copyright
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' notice, this list of conditions and the following disclaimer in the
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' documentation and/or other materials provided with the distribution.
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'
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' THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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' ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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' IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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' ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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' FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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' DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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' OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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' HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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' LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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' OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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' SUCH DAMAGE.
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'
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' $Id: SPYRUSP.BAS 13 2009-11-26 16:37:03Z maf $
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'
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#include "commands.def"
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Option Explicit
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' number of blocks
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Const EEBlocks = 16
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' EEProm has 256 bytes organized here into 16 blocks of 16 bytes
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' the high bit on EEFlag indicates if the next block is in use
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eeprom EEBlock(EEBlocks) as string*16
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eeprom EEFlag(EEBlocks) as byte
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command &H80 &HA0 SetSpyrusEEBlock(idx as byte, blockData as string*16)
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private idxVal as Byte
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idxVal = idx and &H7F
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EEBlock(idxVal) = blockData
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EEFlag(idxVal) = idx and &H80
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end command
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command &H80 &HA2 GetSpyrusEEBlock(idx as byte, blockData as string*16)
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if (idx >= EEBlocks) then
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SW1SW2 = swDataNotFound
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exit
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end if
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blockData = EEBlock(idx)
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if (EEFlag(idx) and &H80) then
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idx = idx or &H80
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end if
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end command
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