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28 lines
562 B
NASM
28 lines
562 B
NASM
bits 64
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global _start
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section .text
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_start:
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; 16-bit shift.
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mov eax, 0x0000FFFF
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mov ebx, 0x0000BDBD
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shrd ax, bx, 8
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; 32-bit shift.
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mov eax, 0x0000FFFF
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mov ebx, 0xBDBD0000
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shrd eax, ebx, 16
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; 64-bit shift.
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mov rax, 0x0000FFFF0000FFFF
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mov rbx, 0xBDBD00000000FFFF
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shrd rax, rbx, 32
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; 64-bit shift with count larger than 64, masked.
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mov rax, 0x0000FFFF0000FFFF
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mov rbx, 0xBDBD00000000FFFF
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shrd rax, rbx, 65
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int3 |