; $Id: tstAsmSignExtend-1.asm 98103 2023-01-17 14:15:46Z vboxsync $ ;; @file ; Disassembly testcase - Valid sign extension instructions. ; ; This is a build test, that means it will be assembled, disassembled, ; then the disassembly output will be assembled and the new binary will ; compared with the original. ; ; ; Copyright (C) 2008-2023 Oracle and/or its affiliates. ; ; This file is part of VirtualBox base platform packages, as ; available from https://www.virtualbox.org. ; ; This program is free software; you can redistribute it and/or ; modify it under the terms of the GNU General Public License ; as published by the Free Software Foundation, in version 3 of the ; License. ; ; This program is distributed in the hope that it will be useful, but ; WITHOUT ANY WARRANTY; without even the implied warranty of ; MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU ; General Public License for more details. ; ; You should have received a copy of the GNU General Public License ; along with this program; if not, see . ; ; SPDX-License-Identifier: GPL-3.0-only ; %include "tstAsm.mac" BITS TEST_BITS movsx ax, al movsx eax, al movsx eax, ax ; ; ParseImmByteSX ; ; 83 /x add eax, strict byte 8 add eax, strict byte -1 cmp ebx, strict byte -1 add ax, strict byte 8 add ax, strict byte -1 cmp bx, strict byte -1 %if TEST_BITS == 64 ; check that these come out with qword values and not words or dwords. add rax, strict byte 8 add rax, strict byte -1 cmp rbx, strict byte -1 %endif ; push %Ib push strict byte -1 push strict byte -128 push strict byte 127 ;; @todo imul