diff options
Diffstat (limited to 'src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-PrintU32.asm')
| -rw-r--r-- | src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-PrintU32.asm | 83 |
1 files changed, 83 insertions, 0 deletions
diff --git a/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-PrintU32.asm b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-PrintU32.asm new file mode 100644 index 00000000..1e6cba45 --- /dev/null +++ b/src/VBox/ValidationKit/bootsectors/bs3kit/bs3-cmn-PrintU32.asm @@ -0,0 +1,83 @@ +; $Id: bs3-cmn-PrintU32.asm $ +;; @file +; BS3Kit - Bs3PrintU32, Common. +; + +; +; Copyright (C) 2007-2019 Oracle Corporation +; +; This file is part of VirtualBox Open Source Edition (OSE), as +; available from http://www.virtualbox.org. This file is free software; +; you can redistribute it and/or modify it under the terms of the GNU +; General Public License (GPL) as published by the Free Software +; Foundation, in version 2 as it comes in the "COPYING" file of the +; VirtualBox OSE distribution. VirtualBox OSE is distributed in the +; hope that it will be useful, but WITHOUT ANY WARRANTY of any kind. +; +; The contents of this file may alternatively be used under the terms +; of the Common Development and Distribution License Version 1.0 +; (CDDL) only, as it comes in the "COPYING.CDDL" file of the +; VirtualBox OSE 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. +; + +%include "bs3kit-template-header.mac" + + +BS3_EXTERN_CMN Bs3PrintStr + +;; +; Prints a 32-bit unsigned integer value. +; +; @param [xBP + xCB*2] 32-bit value to format and print. +; +BS3_PROC_BEGIN_CMN Bs3PrintU32, 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, 10 ; what to divide by +.next: + xor edx, edx + div ecx ; edx:eax / ecx -> eax and rest in edx. + 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 Bs3PrintU32 + |