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39 lines
1.3 KiB
39 lines
1.3 KiB
main() begin
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XXXX = 111111111
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XXXX is stored at &XXXX = 0xfffff40750e0
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YYYY is a pointer to XXXX: YYYY = 0xfffff40750e0
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* dereferences the pointer: *YYYY = 111111111
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Array AAAA can be accessed with array notaions:
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AAAA[0] = 222222222
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AAAA[1] = 333333333
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AAAA[2] = 444444444
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Array variable AAAA is a pointer to A[0]: AAAA = 0xfffff40750f8
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So, dereferencing AAAA should give us A[0]: *AAAA = 222222222
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Adding 1 to an int pointer makes it point to the next int
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AAAA = 0xfffff40750f8
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AAAA+1 = 0xfffff40750fc
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*(AAAA+1) = 333333333
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We can look at contents of a chunk of memory:
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Peeking at the memory in the neighbourhood of &XXXX, we see:
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Address Contents in Hex Contents in Decimal
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0xfffff40750fc: 13de4355 = 333333333
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0xfffff40750f8: d3ed78e = 222222222
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0xfffff40750f4: ffff = 65535
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0xfffff40750f0: f40750e0 = -200847136
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0xfffff40750ec: ffff = 65535
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0xfffff40750e8: f40750e8 = -200847128
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0xfffff40750e4: 6 = 6
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0xfffff40750e0: 69f6bc7 = 111111111
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0xfffff40750dc: ffff = 65535
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0xfffff40750d8: a478f4e0 = -1535576864
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0xfffff40750d4: aaaa = 43690
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0xfffff40750d0: c46a13e0 = -999681056
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0xfffff40750cc: ffff = 65535
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0xfffff40750c8: a478f538 = -1535576776
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0xfffff40750c4: ffff = 65535
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main() ends
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