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DOS开发编程 & 发展交流（开发室） » Source code of a soft shutdown program under DOS

Floor17　021850524	Posted 2003-07-26 00:00
初级用户　Posts 1　Credits 102
If it's a soft boot, then jmp ffff:0000. For a more thorough and lower-level one, it's out 64,fe

Floor18　Roy	Posted 2003-07-26 00:00
管理员　Posts 1,633　Credits 4,869
*The following is a quote from 021850524 on July 26, 2003 at 14:28:29:* If it's a soft boot, then jmp ffff:0000 For a more thorough and lower-level one, it's out 64,fe Is this referring to this? C:\>debug -a **:0100 mov al,fe :0102 out 64,al **:0104 -rcx CX 0000 :4 -nreset.com -w Writing 00004 bytes -q C:\>

Floor19　Wengier	Posted 2003-07-27 00:00
系统支持　Posts 10,521　Credits 27,736
*The following is a quote from lydong* on 2003-4-7 12:46:41:** There are already so many programs for soft shutdown and restart, but there is no program that can directly restart DOS. The following programs all cannot restart DOS smoothly. They all freeze when the startup screen just appears. May I ask who has a way? Use GRUB for DOS, which can realize starting (the same or another) DOS directly under DOS.

Floor20　斑马王子	Posted 2003-08-14 00:00
初级用户　Posts 17　Credits 163
I've done both for the sixth floor and the second floor, but it doesn't shut down after execution. Why? When using masm, the exe file is successfully generated, but there's no result after execution. Why? Please give instructions.

Floor21　斑马王子	Posted 2003-08-14 00:00
初级用户　Posts 17　Credits 163
And I successfully compiled the obj file using masm. But I'm not sure if there's a problem when I link it into an exe file. c:\>link poweroff.obj run file I just pressed Enter here list file pressed Enter directly libraries pressed Enter directly warning:no stack segment I know I must have made a mistake here. I used it a long time ago but now I've forgotten. Could any brother help?

Floor22　斑马王子	Posted 2003-08-14 00:00
初级用户　Posts 17　Credits 163
Dear experts, I made a mistake. After I finished the program, I ran it under Windows. I forgot that this program is used to shut down DOS. Now the problem is solved.

Floor23　lhyh	Posted 2003-09-08 00:00
初级用户　Posts 4　Credits 110
I need a detailed introduction to the use of MASM. Thank you!!! My email: [email protected]. QQ: 80847753

Floor24　笑傲江湖	Posted 2003-09-11 00:00
初级用户　Posts 61　Credits 271
I wonder if I need to meet two conditions first: 1. BIOS supports APM/ACPI function; 2. ATX power. What does the moderator think?

Floor25　profree	Posted 2004-06-30 00:00
中级用户　Posts 132　Credits 478
Is there a C language source code?

Floor26　f319	Posted 2009-07-30 06:18
新手上路　Posts 9　Credits 14
... Hey, you guys are still using the system interrupts. But you still don't know exactly how it shuts down. That is, you don't know how that interrupt program manages to shut down... ... Rebooting is simple. As long as you set cs:ip to ffff:0000, so in debug, a jmp ffff:0000 can reboot. (But this doesn't save any data)... The reason this reboot works is because when the system boots up, cs:ip is set to ffff:0000, and the first instruction the system executes is at ffff:0000... .... But how to shut down?

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