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> OS Construction > Metropolis |
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adefeo 03 Jan 2006, 23:36
I'm making an announcement about my little OS named Metropolis. After a few days in development, I've released its first version. It doesn't do much, but it's a foundation for future versions to build on.
Metropolis 2006.R1 can be downloaded from http://512.bry.ath.cx/metro_releases/2006.R1.0/metro2k6R1.rar (66KB) A Win32 Installer with Bochs 1.2 preloaded with Metro 2k6.R1 can be downloaded from http://512.bry.ath.cx/metro_releases/2006.R1.0/metrobe.exe (227KB) It's a small realmode OS coded entirely in FASM. Thanks, Anthony PS: The site is in development; it will be at http://512net.vze.com when finished. Also, forums are online at http://512net.vze.com/forum/
Last edited by adefeo on 06 Jan 2006, 22:57; edited 1 time in total |
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03 Jan 2006, 23:36 |
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adefeo 05 Jan 2006, 01:30
I know, thanks. And it's simple just for the fact that this is its first ever release, and only took 3 days to code and debug....
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05 Jan 2006, 01:30 |
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Dex4u 05 Jan 2006, 23:55
Yes it best to keep it simple, even when it gets bigger, by breaking it down into small parts, nice work.
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05 Jan 2006, 23:55 |
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Redragon 06 Jan 2006, 22:42
the download link is broken
_________________ (AH+AL=AX)+E=EAX |
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06 Jan 2006, 22:42 |
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adefeo 06 Jan 2006, 22:57
Whoops, sorry, forgot to update it.
Here: http://512net.vze.com/metro_releases/2006.R1.0/ (goes to same place as http://512.bry.ath.cx/metro_releases/2006.R1.0/ ) |
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06 Jan 2006, 22:57 |
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DC740 07 Jan 2006, 18:20
I tested it on my 286 with 2 MB ram and 25 Mhz and it boots ok (the first home made OS that boot on that machine) but when I hit enter it freezes...
by the way, nice work!!! |
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07 Jan 2006, 18:20 |
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DC740 27 Mar 2006, 17:15
ok, i thougth that you would fix the problem.... I was bored so i did it by myself... and I don't know why my 286 is not recognizing the repe movsb command... it freezes every time the OS executes it:
so this is the temporary fix... (repe should work, I don't know what's going on) just replace the kernel code with this one: Code: compare_command_cls: command_length equ 3 ;@@@@@@@@@@@@@@@ Old loop ;##################################### ;mov di, cmdbuffer ;mov si, command_cls ;mov cx, command_length ;repe cmpsb ;############################## ;END OF old loop ;This works: mov di, cmdbuffer cmp [di],word 'cl' jne @f inc di cmp [di],word 'ls' jne @f jmp cls @@: ;compare_command_help: mov di, cmdbuffer cmp [di],word 'he' jne @f add di,2 cmp [di],word 'lp' jne @f jmp help @@: ;compare_command_ver: mov di, cmdbuffer cmp [di],word 've' jne @f inc di cmp [di],word 'er' jne @f jmp ver @@: ;compare_command_halt: mov di, cmdbuffer cmp [di],word 'ha' jne @f add di,2 cmp [di],word 'lt' jne @f jmp halt @@: ;compare_command_reboot: mov di, cmdbuffer cmp [di],word 're' jne @f add di,2 cmp [di],word 'bo' jne @f add di,2 cmp [di],word 'ot' jne @f jmp reboot @@: ;jmp invalid_cmd ;invalid_cmd: mov si, invalidcmd call kprint jmp commandready _________________ [img]http://img194.imageshack.us/img194/9575/argentino7no3ym.gif [/img] |
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27 Mar 2006, 17:15 |
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Octavio 28 Mar 2006, 15:35
DC740 wrote: ok, i thougth that you would fix the problem.... I was bored so i did it by myself... and I don't know why my 286 is not recognizing the repe movsb command 'rep movsb' should work on your 286 else the computer will probably crash before the OS is loaded , but i think that you are confusing 'movsb' and 'cmpsb'. |
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28 Mar 2006, 15:35 |
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DC740 28 Mar 2006, 17:18
hehe yes, thats true, I ment "repe cmpsb"... anyway it doesn't work... I put this after and before the instruction:
;@@@@debug pusha mov esi,ERRORSTRING ; error string is something like "before repe cmpsb call kprint ;this prints the string popa repe cmpsb ;@@@@debug pusha mov esi,ERRORSTRING2 ; after repe cmpsb | but this code is never executed :S call kprint ;this prints the string popa _________________ [img]http://img194.imageshack.us/img194/9575/argentino7no3ym.gif [/img] |
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28 Mar 2006, 17:18 |
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Octavio 29 Mar 2006, 07:53
DC740 wrote: hehe yes, thats true, I ment "repe cmpsb"... anyway it doesn't work... run it with Dos debug ,if it crash at 'rep compsb' then you can say it is a hardware problem, but the most probable is that there is some bug in the program. |
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29 Mar 2006, 07:53 |
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