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| 1 | ; $Id: tstAsmSignExtend-1.asm 69111 2017-10-17 14:26:02Z vboxsync $
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| 2 | ;; @file
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| 3 | ; Disassembly testcase - Valid sign extension instructions.
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| 4 | ;
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| 5 | ; This is a build test, that means it will be assembled, disassembled,
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| 6 | ; then the disassembly output will be assembled and the new binary will
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| 7 | ; compared with the original.
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| 8 | ;
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| 9 |
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| 10 | ;
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| 11 | ; Copyright (C) 2008-2017 Oracle Corporation
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| 12 | ;
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| 13 | ; This file is part of VirtualBox Open Source Edition (OSE), as
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| 14 | ; available from http://www.virtualbox.org. This file is free software;
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| 15 | ; you can redistribute it and/or modify it under the terms of the GNU
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| 16 | ; General Public License (GPL) as published by the Free Software
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| 17 | ; Foundation, in version 2 as it comes in the "COPYING" file of the
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| 18 | ; VirtualBox OSE distribution. VirtualBox OSE is distributed in the
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| 19 | ; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind.
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| 20 | ;
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| 21 |
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| 22 | %include "tstAsm.mac"
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| 23 | BITS TEST_BITS
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| 24 |
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| 25 | movsx ax, al
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| 26 | movsx eax, al
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| 27 | movsx eax, ax
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| 28 |
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| 29 | ;
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| 30 | ; ParseImmByteSX
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| 31 | ;
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| 32 |
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| 33 | ; 83 /x
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| 34 | add eax, strict byte 8
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| 35 | add eax, strict byte -1
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| 36 | cmp ebx, strict byte -1
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| 37 |
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| 38 | add ax, strict byte 8
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| 39 | add ax, strict byte -1
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| 40 | cmp bx, strict byte -1
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| 41 |
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| 42 | %if TEST_BITS == 64 ; check that these come out with qword values and not words or dwords.
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| 43 | add rax, strict byte 8
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| 44 | add rax, strict byte -1
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| 45 | cmp rbx, strict byte -1
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| 46 | %endif
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| 47 |
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| 48 | ; push %Ib
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| 49 | push strict byte -1
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| 50 | push strict byte -128
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| 51 | push strict byte 127
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| 52 |
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| 53 | ;; @todo imul
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