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Int 13h ah 42h

Nettet7. jun. 2011 · 首先谢谢大家来看我的问题。 我想做一个能够读取磁盘主分区信息的程序，查了几天的资料，决定用 int 13h (ah = 42h) 中断来读取第一个硬盘的第一个扇区的信息。 但是在中断调用后，CF 标记为 1, ah 也成了 1, 查了一下文档，说是失败的标志…… 我是在 Windows 7 64bit 下用 VMWare 虚拟机里的 Windows XP 写的，代码有点啰嗦，抱 …

int 0x13 的扩展读（ah = 0x42） - CSDN博客

Nettet3. okt. 2015 · nasm : 用栈传递 int13h ah=42h 的 disk address packet 参数分析_int 13 ah 42_LostSpeed的博客-CSDN博客 nasm : 用栈传递 int13h ah=42h 的 disk address … Nettet24. jan. 2012 · Why are you calling the int 13h? That's for disk services, in particular with ah=08h you're asking for the first drive's parameters! (check here ). Then you're moving … 印刷機 ボックス https://snapdragonphotography.net

OSDev.org • View topic - INT 13h, AH=42h - extended read sectors

Nettet10. jun. 2009 · But Int13h AH=42h returns AH=1 with CF set. Couldn't figure out why so far. Here's the code that fails: Code: Select all ;* bootldr.asm * ;* NTFS-specific * ;* Bootsector is supposed to start with EB 52 * org 7C54h ;NTFS Bootsector Structures [section .bpb] absolute 7C1Ch BPB_HiddSec resd 1 absolute 7C28h Nettet19. okt. 2024 · int 13h ah 42h start sector by twixuss» Mon Oct 18, 2024 8:34 am I'm trying to read from disk using int 13h ah 42h and it works fine only if I read the whole kernel in one call. When reading in chunks it seems like only first call is having effect. And I guess it works only when source sector in disk address packet is equal to 1. Nettet18. jan. 2024 · 我今年在学校开始学习集会，我们才开始学习像素.我们的老师给了我们一些代码，并告诉我们要弄乱它，他还告诉我们尝试实施代码中的延迟(ah = 86h int 15H)，但是当我尝试使用它时，一些像素的变化，我不明白为什么代码:(只是代码的一部分，延迟后还有更多的毁灭)mov cx, 20add [y], 2mov d 印刷機 ホッチキス止め

INT 13H - HandWiki

Category:x86 - INT 13h 有效扇区大小 - IT工具网

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Int 13h ah 42h

Re: How to use BIOS int 13h ah=48h - Google Groups

Nettetint 10 - ah = 42h video - clear current page (hercules grafix) ... int 14 - ah = 13h fossil - single character ansi write to screen .....32 int 14 - ah = 14h fossil - enable or disable watchdog processing ... Nettet21. nov. 2011 · pushdsmovax,segint_pro；取int_pro子程序的段基址movds,axmovdx,offsetint_pro；取int_pro子 ... moval,1bh out 80h,al mov al,60h out 81h,al moval,13h out 81h,al 8.3 8.3 例8-2 某微机系统使用主 ... offset int-p 中断子程序入口偏移地址送dxmov al, 42h ir2的中断类型号42h送al8.4 8.4 mov ah, ...

Int 13h ah 42h

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Nettet用int 13h 从硬盘中读取 ... read the second sector mov si, DAP mov ah, 0x42 int 0x13 mov si, data call print_string jmp $ DAP: db 0x10 ;size of DAP db 0x0 ;zero db 0x1 ;number of sectors to read db 0x0 ;zero ; point to memory dw 0x0 ;offset dw 0x0 ;segment dq 0x1 ... http://www2.ift.ulaval.ca/%7Emarchand/ift17583/dosints.pdf

Nettet7. jun. 2011 · 首先谢谢大家来看我的问题。 我想做一个能够读取磁盘主分区信息的程序，查了几天的资料，决定用 int 13h (ah = 42h) 中断来读取第一个硬盘的第一个扇区的 … Nettet28. apr. 2012 · INT 13h, AH=42h - extended read sectors. Question about which tools to use, bugs, the best way to implement a function, etc should go here. Don't forget to see …

Nettet3. okt. 2015 · nasm : 用栈传递 int13h ah=42h 的 disk address packet 参数分析. 逆向ultraIso制作的MBR, 看到 disk address packet 参数是通过栈传递的. 这样搞，确实省空间, 不过容易看错, 也不好理解. 事先已经将1#扇区填充成了特别的内容, 这样int 13h ah=42h执行完后, 就可以通过查看0x7e00的内存 ... Nettet24. jun. 2013 · 1、 int 0x13 的扩展读（ah = 0x42） int 0x13 的 0x42 号功能从磁盘读 n 个 sectors 到 buffer 中。 入口参数：ah = 0x42, dl = 磁盘号（0x80 为硬盘）， ds:si = …

Nettet扩展 BIOS 磁盘服务，如 Int 13h/AH=42h和 Int 13h/AH=43h不要假设扇区大小固定为 512 字节。 在任何支持扩展磁盘 BIOS 服务的驱动器上，您都可以查询驱动器参数以确定磁盘扇区大小。

NettetAssembly 读取CD INT 13h AH=42H的扇区关闭故障 assembly; Assembly 程序集Win32\u printf代码崩溃 assembly; Assembly 编译器比人类产生更好的汇编代码吗？ assembly compilation; Assembly 如何强制ollydbg复制自修改的可执行文件？ assembly bdr-212xjbk ファームウェアNettet4. jun. 2001 · 以下内容是CSDN社区关于关于INT 21H(AH=42H)相关内容，如果想了解更多关于汇编语言社区其他内容，请访问CSDN ... SeeAlso: AH=3Fh"NB.SYS",INT 16/AX=FFA3h/BX=0000h INT 21 Copied from Ralf Brown's Interrupt List. bbbpgh 2001-03 … 印刷機 マスターNettet26. jun. 2024 · When executing int 13h with AH = 42h, the terminal displayed the following information. 00017480939i [BIOS ] int13_diskette: unsupported AH=42 00017481022i [XGUI ] charmap update. Font is 9 x 16 Next at t=17481022 The registers before int 13h instruction are as follow: bdr-212uhbk ドライバNettet8. apr. 2012 · 地址为20h，21h，中断类型号0ah，从ir2引入 data segment mess db ´*****´,oah,odh,´$´ inta00 equ 0020h inta01 equ 0021h data ends stack segment stack db 100h dup stackends code segment assume cs：code，ds：data，ss：stack main：mov ax，data mov ds，ax mov dx，inta00 ；8259a 初始化 mov al，13h ；写icw1 out … bdr-212jbk ファームウェアNettet5. okt. 2024 · Disk access using the BIOS (INT 13h) The BIOS provides a set of disk access routines using the INT 0x13 family of BIOS functions. Until an appropriate driver is implemented, these BIOS functions are the only way to access disks. There are two basic INT 0x13 call families to use for disk access. 印刷機 マスター つまりNettet5. okt. 2024 · There are two basic INT 0x13 call families to use for disk access. One uses Cylinder, Head, Sector addressing, and the other uses LBA addressing. There is a third … bdr-212u ファームウェアNettet26. jan. 2024 · I'm using INT 13H with AH=42H. I've also used AH=02H but that also fails. It can read Up to 63 sectors and then it just stops. The routine doesn't even complete. INT 13H never gets returned from after trying to load passed 63 sectors. I'm not sure what's causing this, so if anyone has some idea I'd be grateful to hear it. 印刷機 ホチキス 設定