[Сергей]

Steps
- Find first shifted dir in log of Check_Dirs
- Find block with last good dir in log of saving
- Find block with first shifted dir in log of saving
- Determine bank wich size must be changed
- Determine on how much blocks dir shifted
- Determine cut or add
- Correct Bank_Size
- Check result

[Сергей]

Find first shifted dir in log of Check_Dirs

...
Dir 0x19917000  Must be 0x19917000  Diff  0x00000000  Cluster 0x00c50b
Dir 0x20f19000  Must be 0x20f19000  Diff  0x00000000  Cluster 0x01000c  
Dir 0x28f8b000  Must be 0x28f8b000  Diff  0x00000000  Cluster 0x014045  
Dir 0x31569000  Must be 0x31569000  Diff  0x00000000  Cluster 0x018334  
Dir 0x34bf7000  Must be 0x34bf7000  Diff  0x00000000  Cluster 0x019e7b
Dir 0x3e299000  Must be 0x3e199000  Diff+ 0x00300000  Cluster 0x01e94c  
Dir 0x448cd000  Must be 0x447cd000  Diff+ 0x00300000  Cluster 0x021c66  
Dir 0x4bd8d000  Must be 0x4bc8d000  Diff+ 0x00300000  Cluster 0x0256c6  
Dir 0x5607b000  Must be 0x55f7b000  Diff+ 0x00300000  Cluster 0x02a83d  
Dir 0x6eb6b000  Must be 0x6ea6b000  Diff+ 0x00300000  Cluster 0x036db5
...

[Сергей]

Find block with last good dir in log of saving

When assembler works, he show on screen important messages.
We call it "log".
Different assemblers have different work steps.
For example: scaning, saving, sector updates building

We need log of saving
Every line in it starts from word "Image".

Find in it address of block with last good dir

...
Image 34800000  Bank 01  Block 016f  Dump 331c8000  
Image 34900000  Bank 01  Block 0170  Dump 33b10000  
Image 34a00000  Bank 01  Block 0171  Dump 33c18000  
Image 34b00000  Bank 01  Block 0172  Dump 38868000
...

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Find block with first shifted dir in log of saving

...
Image 3e200000  Bank 02  Block 002a  Dump 5b650000  
Image 3e300000  Bank 02  Block 002b  Dump 43ef0000  
Image 3e400000  Bank 02  Block 002c  Dump 42108000  
Image 3e500000  Bank 02  Block 002d  Dump 61008000
...

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Determine bank wich size must be changed

We found last good dir in bank_1
We found first shifted dir in bank_2

This mean, we need change size of bank_1

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Determine on how much blocks dir shifted

Block_Size in dump = 0x108000
Block_Size in image = 0x100000

N = Diff / Block_Size = 0x300000 / 0x100000 = 3

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Determine cut or add

Dir 0x3e299000 > Must be 0x3e199000

Shifted dir found far then he must be
This mean, we need decrease size of bank_1

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Correct Bank_Size

Before:

00 / 0x000 / 0x1d9 
01 / 0x000 / 0x1df 
02 / 0x000 / 0x1e1 
03 / 0x000 / 0x1e1

After:

00 / 0x000 / 0x1d9
00 / 0x000 / 0x1dc 
00 / 0x000 / 0x1e1 
00 / 0x000 / 0x1e1

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Check result

Rebuild image
Repeat Check_Dirs

if Diff is zero in this place, we make all correct
Else we have error in calculations

If Diff is zero in this place, but still have non-zero diffs in other places, repeat this procedure