Assembly Language for Beginners

(Jeff_L) #1

9.5. ORACLE RDBMS: .SYM-FILES


We will add red lines to divide the block:


Figure 9.25:Binary block patterns

Hiew, like almost any other hexadecimal editor, shows 16 bytes per line. So the pattern is clearly visible:
there are 4 32-bit values per line.


The pattern is visually visible because some values here (till address0x104) are always in0x1000xxxx
form, started with 0x10 and zero bytes.


Other values (starting at0x108) are in0x0000xxxxform, so always started with two zero bytes.


Let’s dump the block as an array of 32-bit values:


Listing 9.9: first column is address

$ od -v -t x4 binary_block
0000000 10001000 10001080 100010f0 10001150
0000020 10001160 100011c0 100011d0 10001370
0000040 10001540 10001550 10001560 10001580
0000060 100015a0 100015a6 100015ac 100015b2
0000100 100015b8 100015be 100015c4 100015ca
0000120 100015d0 100015e0 100016b0 10001760
0000140 10001766 1000176c 10001780 100017b0
0000160 100017d0 100017e0 10001810 10001816
0000200 10002000 10002004 10002008 1000200c
0000220 10002010 10002014 10002018 1000201c

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