glm94/pdp7-unix
1
0
Fork 0
Code Issues Pull Requests Actions Packages Projects Releases Wiki Activity
473 Commits 3 Branches 0 Tags
253d9f09974cf0c37a05b043cc788ca6780043ca
Commit Graph
100 Commits
This Branch
This Branch
All Branches
Author SHA1 Message Date
Warren Toomey 253d9f0997 Some files don't need to be in build/alt 2016-03-23 10:10:54 +10:00
Warren Toomey 8dafe1706a Merge branch 'master' of https://github.com/DoctorWkt/pdp7-unix 2016-03-23 09:58:36 +10:00
Warren Toomey 3a52b3d74b I've got mkdir working in the alt system. I had to allow the dir bit 
in the permissions mask in creat, through.
 2016-03-23 09:57:20 +10:00
Warren Toomey 5f4e420e63 I converted some of the ls code into routines. No change in functionality. 
I updated a7out with better sys status handling.
 2016-03-22 09:19:30 +10:00
Warren Toomey 59bde619e5 Here is a simple code coverage tool for the kernel, so that we can see 
what code is not being used at present. Instruction for use are given
as comments at the top of the file.
 2016-03-22 06:23:17 +10:00
Warren Toomey dee1695759 Hmm, not sure why these didn't get added before ... 2016-03-21 16:39:52 +10:00
Warren Toomey b001734e8f I've moved a copy of my ls.s into alt, so there are no files left with 2016-03-21 16:37:26 +10:00
Warren Toomey 94fd5d49e0 I've restructured the alternative version of PDP-7 Unix so that the 
source code is now in src/alt. All the files in src/sys and src/cmd
are only annotated versions of the files in scans/.
The build/Makefile has been updated so that it can build the
original PDP-7 Unix or the alternative version.
Phil has fixed the Graphics-2 code, so that there is no need to
have any #ifdef code in the original kernel.
 2016-03-21 16:01:36 +10:00
Warren Toomey f63ad33d10 This is the beginnings of a alternative version of the PDP-7 Unix 
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 098c8a9e28 I've split the cmd and others Makefile rules out to individual utility rules, 
so that we don't keep building binaries for sources that have not changed.
 2016-03-21 06:51:00 +10:00
Warren Toomey 4a7752d637 More comments to top-level README.md 2016-03-20 22:17:04 +10:00
Warren Toomey 91e2f4dd1a Add details about the mailing list. 2016-03-20 22:07:54 +10:00
Warren Toomey 6b9151d3e3 Print out an error message if ls is given a name that doesn't exist. 2016-03-20 21:03:53 +10:00
Warren Toomey acf853d1a3 I changed the Makefiles so that I could make run without rebuilding 
everything. This is mainly because I often boot the system several times
in a row when debugging, and I didn't want to have to build everything
just to reboot the system :-)
 2016-03-20 20:55:43 +10:00
Warren Toomey f1629e9891 A few discrepancies fixed up. 2016-03-20 20:49:03 +10:00
Warren Toomey d1885214ce Fixed a bug when we had to skip a direntry with a zero i-num. 2016-03-20 09:26:55 +10:00
Warren Toomey 520478a3e4 I moved most of the building code into the build/Makefile. 2016-03-20 09:14:47 +10:00
Warren Toomey 2409028f15 Put back the original code from scans. 2016-03-20 08:42:26 +10:00
Warren Toomey b9fa7fb4fb Fix up the link count code. 2016-03-19 14:37:23 +10:00
Warren Toomey 64a118cb4a More kernel notes. 2016-03-19 11:05:37 +10:00
Warren Toomey 6d15e6f29a Slight changes to the top-level Readme. 2016-03-19 10:54:40 +10:00
Warren Toomey e44bc6daa3 Added note about fsck7. 2016-03-19 07:27:18 +10:00
Warren Toomey b232a4b1a6 Added simple code coverage output to a7out. Added a few ed comments. 2016-03-19 07:25:07 +10:00
Warren Toomey bc189fa861 More kernel comments. 2016-03-19 06:33:00 +10:00
Warren Toomey 0eb720f3ab It's time we had ed as a binary, so we have another goal to reach: making ed work. 2016-03-19 06:30:31 +10:00
Warren Toomey 17a828cfcd mkfs: I moved the order of ., .. and dd around to me more pleasing to the eye. I also 
added some simple link count code.
 2016-03-19 06:25:20 +10:00
Warren Toomey 956bd28ac1 Added the inum field. No idea why it didn't get picked up in the previous 
two commits.
 2016-03-18 19:55:33 +10:00
Warren Toomey 72322c23b2 A few more ls comments. 2016-03-18 19:53:47 +10:00
Warren Toomey 9483300758 sys status returns 13 words, the last one holds the i-number. 2016-03-18 19:47:05 +10:00
Warren Toomey b8b1ac5d95 I changed ls to have a directory as an optional argument. 
This allows it to work when we don't have .
 2016-03-18 10:25:45 +10:00
Warren Toomey fbbe0c6729 Added command line options to enable . and .. 2016-03-17 09:08:37 +10:00
Warren Toomey 3c3f946794 Added hello to the proto file. 2016-03-16 11:38:09 +10:00
Warren Toomey 320dd0418f Add missing dput to .rename 2016-03-16 11:24:56 +10:00
Warren Toomey bb0a7084b3 More kernel build comments. 2016-03-16 09:52:16 +10:00
Warren Toomey 248dfafe0d Change tti to the new unix format, and let the kernel boot up. 2016-03-16 09:48:10 +10:00
Warren Toomey 9f536032b0 Fixed stat so it works. 2016-03-16 09:42:44 +10:00
Warren Toomey 202fbcefb6 Fixed ln to have three arguments. Use stdout not stderr. 2016-03-16 09:22:06 +10:00
Warren Toomey 5f1229cb9c Tidy up. 2016-03-16 06:55:09 +10:00
Warren Toomey 6c5b207aba I uncommented Phil's code so that we can run binaries from system now. 2016-03-16 06:38:56 +10:00
Warren Toomey e5bcd5c264 More comments 2016-03-16 06:22:12 +10:00
Warren Toomey 1bee26fba1 Fixed the daynum value in the date output. 2016-03-16 06:17:39 +10:00
Warren Toomey f64b3f0799 Added code to skip over directory entries with i-num zero. 2016-03-16 06:08:53 +10:00
Warren Toomey b4891828de Merge branch 'master' of https://github.com/DoctorWkt/pdp7-unix 2016-03-16 05:37:25 +10:00
Warren Toomey 00c2de0292 I bit the bullet and implemented "." in the filesystem. I've changed the proto 
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 56f6da9cd8 New tool fsck7 2016-03-15 15:49:40 +10:00
Warren Toomey fe6c5cc8eb Updated the top-level Readme. 2016-03-14 21:52:25 +10:00
Warren Toomey f3519fc34b More build notes. 2016-03-14 21:24:13 +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 5f55b5dc79 More notes on bringing up the kernel. 2016-03-14 21:04:57 +10:00
Warren Toomey 4073baba05 Fix transcription error in s2.s link. 2016-03-14 20:19:48 +10:00
Warren Toomey cbdcf268f7 More kernel notes. 2016-03-14 19:53:00 +10:00
Warren Toomey 9da0484a39 I've got init past the link, but it then dies on the open("sh") immediately 
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 cd7befb2de More kernel comments: link. 2016-03-14 18:26:36 +10:00
Warren Toomey cfa57f16b3 More kernel comments: partial comments for namei. 2016-03-14 17:50:13 +10:00
Warren Toomey 6ffdf4076d More kernel comments: iget 2016-03-14 17:40:46 +10:00
Warren Toomey 77c30047e9 Get the build Makefile to output a kernel symbol table. 2016-03-14 16:51:25 +10:00
Warren Toomey 7b5cd4a135 Changed init.s so that the new as7+cpp can process it. 2016-03-14 10:54:06 +10:00
Warren Toomey 588e2a30b8 More kernel notes. 2016-03-13 21:14:16 +10:00
Warren Toomey 3629461a20 Merge branch 'master' of https://github.com/DoctorWkt/pdp7-unix 2016-03-13 21:09:33 +10:00
Warren Toomey 8b421eb27b I've commited a change to as7 to use the C pre-processor. Not sure if it's 
to everybody's taste.
 2016-03-13 21:08:43 +10:00
Warren Toomey 98145f562a More kernel notes. 2016-03-13 15:11:19 +10:00
Warren Toomey d4e01c7da6 More kernel notes. 2016-03-13 14:43:38 +10:00
Warren Toomey 4860c0a8b0 I've commented out some of the code in s7.s to try and disable the 
Graphics-2 I/O operations.
 2016-03-13 14:36:33 +10:00
Warren Toomey ba3b33d7da There seems to be a transcription error in s7.s, I fixed by eyeballing 
the scans.
 2016-03-13 13:21:25 +10:00
Warren Toomey 4a51b4e6bb Added a notes file to store details of the attempts to bring up 
the kernel.
 2016-03-13 13:14:11 +10:00
Warren Toomey cff237d445 Added dir.5 and filesys.5 manuals. 2016-03-13 09:58:18 +10:00
Warren Toomey 1829f8577f Added graphviz output to xref7 so that we can see the call graph. 2016-03-13 07:27:29 +10:00
Warren Toomey abf5ae6149 Also print out the routine's filename in xref7. 2016-03-12 22:53:33 +10:00
Warren Toomey ffb6676a39 I wrote a very simplistic tool to generate kernel cross references. 2016-03-12 22:37:37 +10:00
Warren Toomey f3dad7916b Clean up comments. 2016-03-11 22:31:40 +10:00
Warren Toomey e7d04b5dee Added Readme comment 2016-03-11 22:27:06 +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 
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
Warren Toomey bfeb833141 Added sdump tool, added a coldboot option to build/Makefile, added a few 
kernel comments.
 2016-03-11 16:00:10 +10:00
Warren Toomey 97f29f046c Moved proto and password to build/ 2016-03-11 10:30:05 +10:00
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 947d44a681 I've used Phil's instructions to set up a build area with a Makefile. 
You can run make build from the top to build things.
 2016-03-10 17:02:46 +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 
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 
Phi's analysis of the filesystem.
 2016-03-10 16:04:35 +10:00
Warren Toomey 19f13c8107 Merge branch 'master' of https://github.com/DoctorWkt/pdp7-unix 2016-03-10 15:29:14 +10:00
Warren Toomey 7e7b05ce17 I've created an area so that we can test kernel mode code in SimH. 2016-03-10 15:28:42 +10:00
Warren Toomey e28c9f1ee7 check.s comments 2016-03-10 15:06:08 +10:00
Warren Toomey ca13ce503e Fixed some typos in check.s 2016-03-10 14:21:10 +10:00
Warren Toomey 089c8b806f I made a change to the word2ascii routine and replicated it out to other programs. 2016-03-10 14:14:57 +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 739d317415 More readme tweaks. 2016-03-10 10:26:52 +10:00
Warren Toomey 3952727b0b Merge branch 'master' of https://github.com/DoctorWkt/pdp7-unix 2016-03-10 10:23:04 +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 
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
Warren Toomey 0517b7c2fc Merge branch 'master' of https://github.com/DoctorWkt/pdp7-unix 2016-03-10 07:44:54 +10:00
Warren Toomey b03cc44290 Fixed up the llss instruction in a7out. 2016-03-10 07:44:31 +10:00
Warren Toomey 3be45d4383 Moved opr.s to src/other as it is not a proper utility and wasn't in the scans. 2016-03-09 06:48:37 +10:00
Warren Toomey 10ab3acbc9 Merge branch 'master' of https://github.com/DoctorWkt/pdp7-unix 2016-03-09 06:48:15 +10:00
Warren Toomey 3cb05b5767 Added Phils opr.s and kernel notes files 2016-03-09 06:47:48 +10:00