About writing word variables into the eeprom

[mackrackit]

When you say efficient, do you mean speed or code size?

[Darrel Taylor]

If you alias the Word array as a Byte array, you can just write 1 byte at a time in the loop.

arraysize  CON 20
Array      VAR WORD[arraysize]

@ByteArray = _Array
ByteArray  VAR BYTE EXT

FOR ArrayPosition = 0 TO (arraysize*2-1)
    WRITE ArrayPosition, ByteArray(ArrayPosition)
NEXT ArrayPosition

[Ted's]

When you say efficient, do you mean speed or code size?

The latter.

[peterdeco1]

I've only done this once a while back but all I did in my program at WRITE time is:

WRITE 0,X.BYTE0 : WRITE 1,X.BYTE1

At READ time:

READ 0,X.BYTE0 : READ 1,X.BYTE1

I don't remember having any problems. Hope it works.

[Ted's]

It does.

You know, the issue here is filling the eeprom with data from a word array. Your line is only a part of it.

[Ted's]

If you alias the Word array as a Byte array, you can just write 1 byte at a time in the loop.

arraysize  CON 20
Array      VAR WORD[arraysize]

@ByteArray = _Array
ByteArray  VAR BYTE EXT

FOR ArrayPosition = 0 TO (arraysize*2-1)
    WRITE ArrayPosition, ByteArray(ArrayPosition)
NEXT ArrayPosition

I do not understand your code. Please comment.

[Darrel Taylor]

This should help some.
Once you know what the EXT modifier does, it should make more sense.

The EXT (external) modifier.
http://www.picbasic.co.uk/forum/showthread.php?t=3891
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