LT1 Data Tables

[rr]

Maybe look for address $2087. Three D tables typically have a three byte
header before the actual data. Don't know how true this is for this ECM.

BobR.


Dave Plummer wrote:

> Anyone happen to know how the tables are -referenced- in the LT1?  For
> example, here's the Spark Advance table at 208A in the E-side.  What's
> got me confused is that there's no reference to it in the code.  I also
> cannot find a vector pointing at 208A, so its not indirected.
>
> Thanks for any tips!
> - Dave
>
> seg000:208A ;
> seg000:208A ; Spark Advance 400-4000 RPM
> seg000:208A ; Amount of spark advance given a particular MAP and RPM
> seg000:208A ;
> seg000:208A ; Across: MAP Pressure
> seg000:208A ; Down:   RPM
> seg000:208A ; Scale: 1/2
> seg000:208A ; Each entry contains double the actual advance, so $42  ==
> 50 == 25 degrees
> seg000:208A ;
> seg000:208A ;                    25,  30,  35,  40,  45,  50,  55,  60,
> 65,  70,  75,  80,  85,  90,  95, 100
> seg000:208A ;
> seg000:208A tblAdvSub4000:  fcb $20, $20, $32, $32, $32, $32, $30, $30,
> $28, $28, $24, $1C, $18, $18,  $C,  $C ;  400
> seg000:208A                 fcb $30, $30, $32, $32, $32, $32, $32, $32,
> $30, $2A, $24, $20, $1E, $18, $14, $10 ;  600
> seg000:208A                 fcb $36, $3E, $3E, $3E, $3E, $3E, $3A, $36,
> $32, $2E, $28, $22, $20, $1D, $1A, $14 ;  800
> seg000:208A                 fcb $40, $46, $46, $46, $44, $42, $3E, $3A,
> $38, $34, $2E, $2A, $24, $1E, $1C, $18 ; 1000
> seg000:208A                 fcb $44, $4A, $4A, $4A, $4A, $46, $42, $3C,
> $38, $34, $30, $2C, $2A, $26, $22, $1E ; 1200
> seg000:208A                 fcb $46, $4E, $4E, $4E, $4C, $4A, $48, $46,
> $44, $40, $3C, $38, $32, $2C, $28, $24 ; 1400
> seg000:208A                 fcb $46, $50, $50, $50, $50, $4E, $4C, $4A,
> $46, $44, $40, $3C, $36, $30, $2C, $2A ; 1600
> seg000:208A                 fcb $46, $50, $52, $52, $52, $50, $4E, $4E,
> $4C, $4A, $46, $42, $3C, $36, $32, $30 ; 1800
> seg000:208A                 fcb $46, $50, $56, $56, $52, $50, $4E, $4E,
> $4C, $4C, $48, $44, $42, $40, $3C, $38 ; 2000
> seg000:208A                 fcb $46, $50, $56, $56, $54, $50, $50, $4E,
> $4E, $4C, $48, $46, $44, $44, $40, $3C ; 2200
> seg000:208A                 fcb $46, $50, $56, $56, $54, $52, $50, $50,
> $4E, $4E, $4A, $46, $46, $46, $42, $3E ; 2400
> seg000:208A                 fcb $46, $50, $56, $56, $54, $52, $50, $4E,
> $4E, $4C, $4C, $48, $48, $46, $44, $40 ; 2800
> seg000:208A                 fcb $46, $50, $56, $56, $54, $52, $52, $50,
> $4E, $4E, $4E, $4A, $4A, $46, $46, $42 ; 3200
> seg000:208A                 fcb $46, $50, $56, $58, $56, $54, $52, $52,
> $50, $4E, $4C, $4A, $4A, $46, $46, $42 ; 3600
> seg000:208A                 fcb $46, $52, $56, $58, $56, $54, $52, $52,
> $50, $50, $4E, $4C, $4A, $46, $46, $42 ; 4000
>
> ----
> Dave Plummer
> http://www.daveandnikki.com/cars.html
> This message does not reflect the opinions or activities of my employer.

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