Warren Toomey
bd13e31f4e
Added a -k option to mkfs7 so that it can write a kernel image in PTR
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format to track 80 on the disk.
2016-03-24 17:24:48 +10:00
Warren Toomey
851f03a50a
mkfs7: Fixed a bug in indirect blocks.
2016-03-23 21:15:07 +10:00
Warren Toomey
c2cbf1ff3c
Oops, don't print out allocated blocks in mkfs7 if we didn't allocate any.
2016-03-23 13:41:17 +10:00
Warren Toomey
7fcf1d230c
I added a way for a file to be given a specific i-number, needed for i-num 1.
2016-03-23 11:25:22 +10:00
Warren Toomey
f63ad33d10
This is the beginnings of a alternative version of the PDP-7 Unix
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system which corresponds to a later development point, around mid-1971,
where the system had lost the "dd" directory and gained . and ..
entries. This is close to the system as described in
http://www.tuhs.org/Archive/PDP-11/Distributions/research/McIlroy_v0/UnixEditionZero.txt
except there are no pathnames.
To use this version: cd build; make alt; make altrun
2016-03-21 14:28:50 +10:00
Warren Toomey
b9fa7fb4fb
Fix up the link count code.
2016-03-19 14:37:23 +10:00
Warren Toomey
17a828cfcd
mkfs: I moved the order of ., .. and dd around to me more pleasing to the eye. I also
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added some simple link count code.
2016-03-19 06:25:20 +10:00
Warren Toomey
fbbe0c6729
Added command line options to enable . and ..
2016-03-17 09:08:37 +10:00
Warren Toomey
00c2de0292
I bit the bullet and implemented "." in the filesystem. I've changed the proto
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file to put the binaries in system. I added a few more checks to fsck, and I fixed
a few bugs in src/other/wktls.s.
2016-03-16 05:36:22 +10:00
Warren Toomey
624776e0f3
Argh. A real dumb bug in mkfs7 that stopped us getting a shell. Fixed.
2016-03-14 21:22:29 +10:00
Warren Toomey
9da0484a39
I've got init past the link, but it then dies on the open("sh") immediately
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after that. Yes, dd has to be i-num 4. I've modified mkfs7 and the proto
file to allow this to occur. I've also make link counts negative.
2016-03-14 19:49:37 +10:00
Warren Toomey
f3dad7916b
Clean up comments.
2016-03-11 22:31:40 +10:00
Warren Toomey
fed0d959b7
Replace numeric literal with constant.
2016-03-11 22:18:04 +10:00
Warren Toomey
e5457d15fb
I've added code to mkfs7 to build a free block list, to write it out to
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the disk image, and to add a pointer in block zero to the beginning of
the list.
2016-03-11 22:00:25 +10:00
Phil Budne
758a8952ea
mkfs7: update directory inode i.size when appending a dnode
2016-03-10 18:39:31 -05:00
Warren Toomey
becb1f4996
So, SimH stores things big-endian. Fixed mkfs7.
2016-03-11 07:04:53 +10:00
Warren Toomey
8d487fee5c
Off by 1 errors in mkfs7, now fixed.
2016-03-11 06:57:46 +10:00
Warren Toomey
86135be03e
More mkfs changes as Phil tries to get the kernel up to reading init.
2016-03-10 16:48:12 +10:00
Warren Toomey
7daa5f7a64
Get mkfs7 to write 8000 empty blocks to fill the bottom half before the
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real filesystem in the top half.
2016-03-10 16:36:45 +10:00
Warren Toomey
436929b83c
Changed the filesystem proto file and enhanced the mkfs7 tool based on
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Phi's analysis of the filesystem.
2016-03-10 16:04:35 +10:00
Warren Toomey
f468628159
Fixed a small i-node calculation bug, and added more debug messages.
2016-03-10 14:11:22 +10:00
Warren Toomey
e784132ba4
Added better debugging output, fix a bug converting ASCII to words.
2016-03-10 13:28:02 +10:00
Warren Toomey
4b90522231
Fix list output logic.
2016-03-10 12:56:51 +10:00
Warren Toomey
3ef14fa6f6
Oops, I forgot to actually write the file contents into the filesystem image.
2016-03-10 12:54:46 +10:00
Warren Toomey
d1b995e771
I've written more of mkfs7 but not tested it yet.
2016-03-10 12:46:00 +10:00
Warren Toomey
6ecf5da1a3
Updated README.md
2016-03-10 10:22:40 +10:00
Warren Toomey
2880d1b2e4
I've made a start on a mkfs tool for PDP-7 Unix. So far I have the routines
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to build the filesystem, but they are not tested. I need to add code to
parse the "proto" file, whose syntax is based on the 6th Edition proto file.
I also need to dump out the filesystem image.
2016-03-10 09:53:05 +10:00
