diff options
Diffstat (limited to 'src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-PrintX32.asm')
| -rw-r--r-- | src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-PrintX32.asm | 97 |
1 files changed, 97 insertions, 0 deletions
diff --git a/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-PrintX32.asm b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-PrintX32.asm new file mode 100644 index 00000000..6469ac08 --- /dev/null +++ b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-PrintX32.asm @@ -0,0 +1,97 @@ +; $Id: bs3-cmn-PrintX32.asm $ +;; @file +; BS3Kit - Bs3PrintU32, Common. +; + +; +; 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 "bs3kit-template-header.mac" + + +BS3_EXTERN_CMN Bs3PrintStr + +;; +; Prints a 32-bit unsigned integer value as hex. +; +; @param [xBP + xCB*2] 32-bit value to format and print. +; +BS3_PROC_BEGIN_CMN Bs3PrintX32, BS3_PBC_HYBRID + BS3_CALL_CONV_PROLOG 1 + push xBP + mov xBP, xSP + push sAX + push sDX + push sCX + push sBX +BONLY16 push ds + + mov eax, [xBP + xCB + cbCurRetAddr] + + ; Allocate a stack buffer and terminate it. ds:bx points ot the end. + sub xSP, 30h +BONLY16 mov bx, ss +BONLY16 mov ds, bx + mov xBX, xSP + add xBX, 2fh + mov byte [xBX], 0 + + mov ecx, 16 ; what to divide by +.next: + xor edx, edx + div ecx ; edx:eax / ecx -> eax and rest in edx. + cmp dl, 10 + jb .decimal + add dl, 'a' - '0' - 10 +.decimal: + add dl, '0' + dec xBX + mov [BS3_ONLY_16BIT(ss:)xBX], dl + cmp eax, 0 + jnz .next + + ; Print the string. +BONLY64 add rsp, 18h +BONLY16 push ss + push xBX + BS3_CALL Bs3PrintStr, 1 + + add xSP, 30h + BS3_IF_16_32_64BIT(2, 0, 18h) + xCB +BONLY16 pop ds + pop sBX + pop sCX + pop sDX + pop sAX + leave + BS3_CALL_CONV_EPILOG 1 + BS3_HYBRID_RET +BS3_PROC_END_CMN Bs3PrintX32 + |