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Howto place large function over two banks???

 
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Honken



Joined: 03 Mar 2004
Posts: 15

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Howto place large function over two banks???
PostPosted: Wed Mar 03, 2004 3:25 am     Reply with quote
Hi,

I have searched the forum about this problem but didn't find any answere.

My problem is that I have a function that need 0x0D5A of ROM.
So it must use two segments of ROM for this but it will not do that even if I put #seperate before the function.

Does anyone have some Id�?? Question

Calibrate
Seg 0004-07FF, 06C5 left, need 0D5A
Seg 0800-0FFF, 0800 left, need 0D5A
Seg 1000-17FF, 0800 left, need 0D5A
Seg 1800-1FFF, 0800 left, need 0D5A
Seg 0000-0003, 0000 left, need 0D5A

main

Error[71] C:\Xcalibur\xcalibur.c 213 : Out of ROM, A segment or the program is too large
Ttelmah
Guest
Re: Howto place large function over two banks???
PostPosted: Wed Mar 03, 2004 5:56 am     Reply with quote
Honken wrote:
Hi,

I have searched the forum about this problem but didn't find any answere.

My problem is that I have a function that need 0x0D5A of ROM.
So it must use two segments of ROM for this but it will not do that even if I put #seperate before the function.

Does anyone have some Id�?? Question

Calibrate
Seg 0004-07FF, 06C5 left, need 0D5A
Seg 0800-0FFF, 0800 left, need 0D5A
Seg 1000-17FF, 0800 left, need 0D5A
Seg 1800-1FFF, 0800 left, need 0D5A
Seg 0000-0003, 0000 left, need 0D5A

main

Error[71] C:\Xcalibur\xcalibur.c 213 : Out of ROM, A segment or the program is too large

Look at what code is use inside the function. If (for instance), you are calling a subroutine, and this is not used anywhere else, this will be made 'inline', and result in the function itself growing. It is these subroutines, that will need to be 'seperated', to reduce the total function size so that the largest 'part', can fit in the available space.
You need to reduce the function to a number of parts. If there are no subroutines that can be 'sperated', then you are going to have to split the function into such routines.

Best Wishes
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