diff options
Diffstat (limited to 'src/VBox/ValidationKit/bootsectors/bs3-cpu-basic-2-asm.asm')
| -rw-r--r-- | src/VBox/ValidationKit/bootsectors/bs3-cpu-basic-2-asm.asm | 283 |
1 files changed, 283 insertions, 0 deletions
diff --git a/src/VBox/ValidationKit/bootsectors/bs3-cpu-basic-2-asm.asm b/src/VBox/ValidationKit/bootsectors/bs3-cpu-basic-2-asm.asm new file mode 100644 index 00000000..ac7c250e --- /dev/null +++ b/src/VBox/ValidationKit/bootsectors/bs3-cpu-basic-2-asm.asm @@ -0,0 +1,283 @@ +; $Id: bs3-cpu-basic-2-asm.asm $ +;; @file +; BS3Kit - bs3-cpu-basic-2 +; + +; +; Copyright (C) 2007-2023 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 <https://www.gnu.org/licenses>. +; +; The contents of this file may alternatively be used under the terms +; of the Common Development and Distribution License Version 1.0 +; (CDDL), a copy of it is provided in the "COPYING.CDDL" file included +; in the VirtualBox distribution, in which case the provisions of the +; CDDL are applicable instead of those of the GPL. +; +; You may elect to license modified versions of this file under the +; terms and conditions of either the GPL or the CDDL or both. +; +; SPDX-License-Identifier: GPL-3.0-only OR CDDL-1.0 +; + + +;********************************************************************************************************************************* +;* Header Files * +;********************************************************************************************************************************* +%include "bs3kit.mac" + + +;********************************************************************************************************************************* +;* Global Variables * +;********************************************************************************************************************************* +BS3_BEGIN_DATA16 +BS3_GLOBAL_DATA g_bs3CpuBasic2_ud2_FlatAddr, 4 + dd _bs3CpuBasic2_ud2 wrt FLAT + + + +; +; CPU mode agnostic test code snippets. +; +BS3_BEGIN_TEXT16 + +BS3_PROC_BEGIN _bs3CpuBasic2_ud2 +.again: + ud2 + jmp .again +BS3_PROC_END _bs3CpuBasic2_ud2 + + +BS3_PROC_BEGIN _bs3CpuBasic2_salc_ud2 + salc ; #UD in 64-bit mode +.again: + ud2 + jmp .again +BS3_PROC_END _bs3CpuBasic2_salc_ud2 + +BS3_PROC_BEGIN _bs3CpuBasic2_swapgs +.again: + db 00fh, 001h, 0f8h ; swapgs - #UD when not in 64-bit mode. + jmp .again +BS3_PROC_END _bs3CpuBasic2_swapgs + + +BS3_PROC_BEGIN _bs3CpuBasic2_Int80 + int 80h +.again: ud2 + jmp .again +BS3_PROC_END _bs3CpuBasic2_Int80 + + +BS3_PROC_BEGIN _bs3CpuBasic2_Int81 + int 81h +.again: ud2 + jmp .again +BS3_PROC_END _bs3CpuBasic2_Int81 + + +BS3_PROC_BEGIN _bs3CpuBasic2_Int82 + int 82h +.again: ud2 + jmp .again +BS3_PROC_END _bs3CpuBasic2_Int82 + + +BS3_PROC_BEGIN _bs3CpuBasic2_Int83 + int 83h +.again: ud2 + jmp .again +BS3_PROC_END _bs3CpuBasic2_Int83 + + +BS3_PROC_BEGIN _bs3CpuBasic2_iret + iret +BS3_PROC_END _bs3CpuBasic2_iret +AssertCompile(_bs3CpuBasic2_iret_EndProc - _bs3CpuBasic2_iret == 1) + + +BS3_PROC_BEGIN _bs3CpuBasic2_iret_opsize + iretd +BS3_PROC_END _bs3CpuBasic2_iret_opsize +AssertCompile(_bs3CpuBasic2_iret_opsize_EndProc - _bs3CpuBasic2_iret_opsize == 2) + + +BS3_PROC_BEGIN _bs3CpuBasic2_iret_rexw + BS3_SET_BITS 64 + iretq + BS3_SET_BITS 16 +BS3_PROC_END _bs3CpuBasic2_iret_rexw +AssertCompile(_bs3CpuBasic2_iret_rexw_EndProc - _bs3CpuBasic2_iret_rexw == 2) + + +; +; CPU mode agnostic test code snippets. +; +BS3_BEGIN_TEXT32 + +;; +; @param [xBP + xCB*2] puDst +; @param [xBP + xCB*3] uNewValue +BS3_PROC_BEGIN_CMN bs3CpuBasic2_Store_mov, BS3_PBC_NEAR + push xBP + mov xBP, xSP + mov xCX, [xBP + xCB*2] + mov xAX, [xBP + xCB*3] + mov [xCX], xAX + leave + ret +BS3_PROC_END_CMN bs3CpuBasic2_Store_mov + +;; +; @param [xBP + xCB*2] puDst +; @param [xBP + xCB*3] uNewValue +BS3_PROC_BEGIN_CMN bs3CpuBasic2_Store_xchg, BS3_PBC_NEAR + push xBP + mov xBP, xSP + mov xCX, [xBP + xCB*2] + mov xAX, [xBP + xCB*3] + xchg [xCX], xAX + leave + ret +BS3_PROC_END_CMN bs3CpuBasic2_Store_xchg + +;; +; @param [xBP + xCB*2] puDst +; @param [xBP + xCB*3] uNewValue +; @param [xBP + xCB*4] uOldValue +BS3_PROC_BEGIN_CMN bs3CpuBasic2_Store_cmpxchg, BS3_PBC_NEAR + push xBP + mov xBP, xSP + mov xCX, [xBP + xCB*2] + mov xDX, [xBP + xCB*3] + mov xAX, [xBP + xCB*4] +.again: + cmpxchg [xCX], xDX + jnz .again + leave + ret +BS3_PROC_END_CMN bs3CpuBasic2_Store_cmpxchg + + +; +; Jump code segment 64KB. +; +; There is no ORG directive in OMF mode of course. :-( +; +section BS3JMPTEXT16 align=16 CLASS=BS3CLASS16JMPCODE PRIVATE USE16 + GROUP BS3GROUPJMPTEXT16 BS3JMPTEXT16 + BS3_SET_BITS 16 + +; 0000: Start with two int3 filler instructions. +BS3_GLOBAL_NAME_EX NAME(bs3CpuBasic2_jmptext16_start), function, 2 + int3 + int3 + +; 0002: This is the target for forward wrap around jumps, should they succeed. +BS3_GLOBAL_NAME_EX NAME(bs3CpuBasic2_jmp_target_wrap_forward), function, 2 + ud2 + align 8, int3 + +; 0008 +BS3_GLOBAL_NAME_EX NAME(bs3CpuBasic2_jmp_jb_wrap_backward__ud2), function, 2 + db 0ebh, -012h ; jmp (0x0008 + 2 - 0x12 = 0xFFFFFFF8 (-8)) + int3 + +; 000b +BS3_GLOBAL_NAME_EX NAME(bs3CpuBasic2_jmp_jb_opsize_wrap_backward__ud2), function, 3 + db 066h, 0ebh, -016h ; jmp (0x000b + 3 - 0x16 = 0xFFFFFFF8 (-8)) + int3 + + align 0x80, int3 +; 0080 +BS3_GLOBAL_NAME_EX NAME(bs3CpuBasic2_jmp_jv16_wrap_backward__ud2), function, 3 + db 0e9h ; jmp (0x0080 + 3 - 0x8b = 0xFFFFFFF8 (-8)) + dw -08bh + int3 + +; 0084 +BS3_GLOBAL_NAME_EX NAME(bs3CpuBasic2_jmp_jv16_opsize_wrap_backward__ud2), function, 6 + db 066h, 0e9h ; jmp (0x0084 + 6 - 0x92 = 0xFFFFFFF8 (-8)) + dd -092h + int3 + +; 008b +BS3_GLOBAL_NAME_EX NAME(bs3CpuBasic2_call_jv16_wrap_backward__ud2), function, 3 + db 0e8h ; call (0x008b + 3 - 0x96) + dw -096h + int3 + +; 008f +BS3_GLOBAL_NAME_EX NAME(bs3CpuBasic2_call_jv16_opsize_wrap_backward__ud2), function, 6 + db 066h, 0e8h ; call (0x008f + 6 - 0x9d = 0xFFFFFFF8 (-8)) + dd -09dh + int3 + + + align 0x100, int3 ; Note! Doesn't work correctly for higher values. + times (0xff6b - 0x100) int3 + +; ff6b +BS3_GLOBAL_NAME_EX NAME(bs3CpuBasic2_call_jv16_wrap_forward__ud2), function, 4 + db 0e8h ; call (0xff6b+3 + 0x94 = 0x10002 (65538)) + dw 094h + int3 + +; ff6f +BS3_GLOBAL_NAME_EX NAME(bs3CpuBasic2_call_jv16_opsize_wrap_forward__ud2), function, 7 + db 066h, 0e8h ; o32 call (0xff6f+6 + 0x8d = 0x10002 (65538)) + dd 08dh + int3 + +; ff76 +BS3_GLOBAL_NAME_EX NAME(bs3CpuBasic2_jmp_jv16_wrap_forward__ud2), function, 5 + db 0e9h ; jmp (0xff76+4 + 0x88 = 0x10002 (65538)) + dw 089h + int3 + +; ff7a +BS3_GLOBAL_NAME_EX NAME(bs3CpuBasic2_jmp_jv16_opsize_wrap_forward__ud2), function, 7 + db 066h, 0e9h ; o32 jmp (0xff7a+6 + 0x82 = 0x10002 (65538)) + dd 082h + int3 + +; ff81 +BS3_GLOBAL_NAME_EX NAME(bs3CpuBasic2_jmp_jb_wrap_forward__ud2), function, 2 + db 0ebh, 07fh ; jmp (0xff81+2 + 0x7f = 0x10002 (65538)) + int3 + +; ff84 +BS3_GLOBAL_NAME_EX NAME(bs3CpuBasic2_jmp_jb_opsize_wrap_forward__ud2), function, 3 + db 066h, 0ebh, 07bh ; o32 jmp (0xff84+3 + 0x7b = 0x10002 (65538)) +; ff87 + + times (0xfff8 - 0xff87) int3 + +; fff8: This is the target for backward wrap around jumps, should they succeed. +BS3_GLOBAL_NAME_EX NAME(bs3CpuBasic2_jmp_target_wrap_backward), function, 2 + ud2 + times 6 int3 +; End of segment. + +BS3_BEGIN_TEXT16 + +; +; Instantiate code templates. +; +BS3_INSTANTIATE_COMMON_TEMPLATE "bs3-cpu-basic-2-template.mac" +BS3_INSTANTIATE_TEMPLATE_WITH_WEIRD_ONES "bs3-cpu-basic-2-template.mac" + |