DSDT Error Object does not exist (PDC0)

On my Sony VGN-FS640/W I have three errors compiling my DSDT
(http://www.zvolve.com/~garry/dsdt.dsl).

dsdt.dsl 506: If (LEqual (And (PDC0, 0x0A), 0x0A))
Error 1022 - Object does not exist ^ (PDC0)
dsdt.dsl 511: If (LEqual (And (PDC1, 0x0A), 0x0A))
Error 1022 - Object does not exist ^ (PDC1)
dsdt.dsl 553: If (LNot (LEqual (And (PDC1, 0x0A), 0x0A)))
Error 1022 - Object does not exist ^ (PDC1)

ASL Input: dsdt.dsl - 4185 lines, 135677 bytes, 1667 keywords Compilation complete. 3 Errors, 0 Warnings, 0 Remarks, 1 Optimizations

Does anyone know why this is the case and what to do about it?

Garry Williams -- +1 (678) 656-4579



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