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Diffstat (limited to 'src/VBox/ValidationKit/bootsectors/bootsector2-common-routines-template-2.mac')
| -rw-r--r-- | src/VBox/ValidationKit/bootsectors/bootsector2-common-routines-template-2.mac | 224 |
1 files changed, 224 insertions, 0 deletions
diff --git a/src/VBox/ValidationKit/bootsectors/bootsector2-common-routines-template-2.mac b/src/VBox/ValidationKit/bootsectors/bootsector2-common-routines-template-2.mac new file mode 100644 index 00000000..89432af8 --- /dev/null +++ b/src/VBox/ValidationKit/bootsectors/bootsector2-common-routines-template-2.mac @@ -0,0 +1,224 @@ +; $Id: bootsector2-common-routines-template-2.mac $ +;; @file +; bootsector2 common routines - template containing code specific to each mode. +; + +; +; 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 +; + +%include "bootsector2-template-header.mac" +ALIGNCODE(32) +GLOBALNAME TMPL_NM(g_szMode) + db TMPL_MODE_STR, 0 + + +;; +; Prints a string on the screen. +; +; @param ds:ax The string to print (null terminated). +; +; @uses nothing +; +BEGINPROC TMPL_NM(PrintStr) + push xBP + mov xBP, xSP + push xAX + push xBX + push xSI + + mov xSI, xAX +.next: + lodsb + test al, al + jz .done +%ifdef TMPL_HAVE_BIOS + mov bx, 0ff00h + mov ah, 0eh + int 10h +%else + call TMPL_NM(PrintChr) +%endif + jmp .next + +.done: + pop xSI + pop xBX + pop xAX + leave + ret +ENDPROC TMPL_NM(PrintStr) + + +;; +; Prints a string on the screen. +; +; @param al The character to print. +; +; @uses nothing +; +BEGINCODELOW +BEGINPROC TMPL_NM(PrintChr) + push xBP + mov xBP, xSP + push xAX + push xBX + +%ifndef TMPL_HAVE_BIOS + %ifdef BS2_WITH_TRAPS + mov bx, cs + and xBX, 0x3 + push xBX + jz .ring_ok + call TMPL_NM_CMN(Bs2ToRing0) +.ring_ok: + %endif + + mov bl, al + call TMPL_NM(LeaveCpuMode) + mov al, bl +BITS 16 +%endif + + mov bx, 0ff00h + mov ah, 0eh + int 10h + +%ifndef TMPL_HAVE_BIOS + call TMPL_NM(EnterCpuMode) +BITS TMPL_BITS + %ifdef BS2_WITH_TRAPS + pop xAX + test al, al + jz .ring_restored + call TMPL_NM_CMN(Bs2ToRingN) +.ring_restored: + %endif +%endif + + pop xBX + pop xAX + leave + ret +ENDPROC TMPL_NM(PrintChr) +TMPL_BEGINCODE + + +%ifndef TMPL_HAVE_BIOS + +;; +; Leaves the current CPU mode and returns to real mode. +; +; @uses nothing +; +BEGINPROC TMPL_NM(LeaveCpuMode) + jmp TMPL_NM(Bs2ExitMode) +ENDPROC TMPL_NM(LeaveCpuMode) + + +;; +; Undo what LeaveCpuMode did. +; +; @uses nothing +; +BEGINCODELOW +BITS 16 +BEGINPROC TMPL_NM(EnterCpuMode) + jmp TMPL_NM(Bs2EnterMode_rm) +ENDPROC TMPL_NM(EnterCpuMode) +TMPL_BEGINCODE +BITS TMPL_BITS + +%endif ; TMPL_HAVE_BIOS + + +;; +; Sets the global variable for the current CPU mode. +; +; @uses nothing. +; +BEGINPROC TMPL_NM(SetCpuModeGlobals) +%ifdef TMPL_CMN_PE + %ifdef BS2_INC_PE16 + mov word [g_pfnPrintStrInternal_p16], PrintStr_pe16 + mov word [g_pfnPrintChrInternal_p16], PrintChr_pe16 + %endif + %ifdef BS2_INC_PE32 + mov dword [g_pfnPrintStrInternal_p32], PrintStr_pe32 + mov dword [g_pfnPrintChrInternal_p32], PrintChr_pe32 + %endif + +%elifdef TMPL_CMN_PP + %ifdef BS2_INC_PP16 + mov word [g_pfnPrintStrInternal_p16], PrintStr_pp16 + mov word [g_pfnPrintChrInternal_p16], PrintChr_pp16 + %endif + %ifdef BS2_INC_PP32 + mov dword [g_pfnPrintStrInternal_p32], PrintStr_pp32 + mov dword [g_pfnPrintChrInternal_p32], PrintChr_pp32 + %endif + +%elifdef TMPL_CMN_PAE + %ifdef BS2_INC_PAE16 + mov word [g_pfnPrintStrInternal_p16], PrintStr_pae16 + mov word [g_pfnPrintChrInternal_p16], PrintChr_pae16 + %endif + %ifdef BS2_INC_PAE32 + mov dword [g_pfnPrintStrInternal_p32], PrintStr_pae32 + mov dword [g_pfnPrintChrInternal_p32], PrintChr_pae32 + %endif + +%elifdef TMPL_CMN_LM + %ifdef BS2_INC_LM16 + mov word [g_pfnPrintStrInternal_p16], PrintStr_lm16 + mov word [g_pfnPrintChrInternal_p16], PrintChr_lm16 + %endif + %ifdef BS2_INC_LM32 + mov dword [g_pfnPrintStrInternal_p32], PrintStr_lm32 + mov dword [g_pfnPrintChrInternal_p32], PrintChr_lm32 + %endif + %ifdef BS2_INC_LM64 + mov dword [g_pfnPrintStrInternal_p64], PrintStr_lm64 + mov dword [g_pfnPrintChrInternal_p64], PrintChr_lm64 + %endif + +%elifdef TMPL_16BIT + mov word [TMPL_NM_CMN(g_pfnPrintStrInternal)], TMPL_NM(PrintStr) + mov word [TMPL_NM_CMN(g_pfnPrintChrInternal)], TMPL_NM(PrintChr) +%else + %error "missing case" +%endif + ret +ENDPROC TMPL_NM(SetCpuModeGlobals) + + + +%include "bootsector2-template-footer.mac" + |