35 lines
1.9 KiB
Text
35 lines
1.9 KiB
Text
| # Execution begins at address 0
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0x000: | .pos 0
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0x000: 30f40002000000000000 | irmovq stack, %rsp # Set up stack pointer
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0x00a: 803800000000000000 | call main # Execute main program
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0x013: 00 | halt # Terminate program
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| # Array of 4 elements
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0x018: | .align 8
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0x018: 0d000d000d000000 | array: .quad 0x000d000d000d
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0x020: c000c000c0000000 | .quad 0x00c000c000c0
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0x028: 000b000b000b0000 | .quad 0x0b000b000b00
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0x030: 00a000a000a00000 | .quad 0xa000a000a000
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0x038: 30f71800000000000000 | main: irmovq array,%rdi
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0x042: 30f60400000000000000 | irmovq $4,%rsi
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0x04c: 805600000000000000 | call sum # sum(array, 4)
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0x055: 90 | ret
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| # long sum(long *start, long count)
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| # start in %rdi, count in %rsi
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0x056: 30f80800000000000000 | sum: irmovq $8,%r8 # Constant 8
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0x060: 30f90100000000000000 | irmovq $1,%r9 # Constant 1
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0x06a: 6300 | xorq %rax,%rax # sum = 0
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0x06c: 6266 | andq %rsi,%rsi # Set CC
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0x06e: 708700000000000000 | jmp test # Goto test
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0x077: 50a70000000000000000 | loop: mrmovq (%rdi),%r10 # Get *start
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0x081: 60a0 | addq %r10,%rax # Add to sum
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0x083: 6087 | addq %r8,%rdi # start++
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0x085: 6196 | subq %r9,%rsi # count--. Set CC
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0x087: 747700000000000000 | test: jne loop # Stop when 0
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0x090: 90 | ret # Return
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| # Stack starts here and grows to lower addresses
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0x200: | .pos 0x200
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0x200: | stack:
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