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Author SHA1 Message Date
Warren Toomey 96069aeb66 Ragge sent in another patch to a7out for the lrs instruction. 2017-02-03 11:35:28 +10:00
Warren Toomey 59dff5c9f2 I've modified as7 to have local and global labels, which we will need for 
the upcoming pcc compiler.
 2017-02-02 19:46:05 +10:00
Warren Toomey a558131773 I've imported the tool changes I made in my H compiler. Also, 
Anders Magnusson contributed the lrs simulation code for a7out.
 2017-01-22 23:51:44 +10:00
Warren Toomey a0ed6a9845 Merge branch 'master' of https://github.com/DoctorWkt/pdp7-unix 2017-01-22 23:49:47 +10:00
Warren Toomey c3ba4fe361 I've imported the changes to as7 and a7out which I've done in my H compiler. 
Also, Anders Magnusson contributed code to simulate the lrs instruction in a7out.
 2017-01-22 23:47:25 +10:00
Warren Toomey f6f05e6483 A few lines got lost in the last edit to s6.s, now fixed. 2016-04-28 15:04:29 +10:00
Warren Toomey bcc9bc09d8 Merge branch 'master' of https://github.com/DoctorWkt/pdp7-unix 2016-04-28 14:49:05 +10:00
Warren Toomey c1dc742f03 Added support for symbols with uppercase letters. 2016-04-28 13:11:24 +10:00
Warren Toomey a36ea820b6 Merge branch 'master' of https://github.com/DoctorWkt/pdp7-unix 2016-03-29 08:13:44 +10:00
Warren Toomey bf1914f388 C roff is now even closer to B: for loops are now while loops. 2016-03-29 08:12:46 +10:00
Warren Toomey fd5c06efab Merge branch 'master' of https://github.com/DoctorWkt/pdp7-unix 2016-03-28 21:57:11 +10:00
Warren Toomey 03b9bcfdc5 A few more man pages converted to roff format. 2016-03-28 21:56:58 +10:00
Warren Toomey fed6525853 I've converted all the man pages so far into roff format. 2016-03-28 13:24:27 +10:00
Warren Toomey dfb61a274f I've brought in and modified a roff so that it should be translatable into B. 
I've started work on writing the man pages in this version of roff.
 2016-03-28 12:18:10 +10:00
Warren Toomey a593b1104f Merge branch 'master' of https://github.com/DoctorWkt/pdp7-unix 2016-03-26 09:21:14 +10:00
Warren Toomey 193338dd4f Fixed up some more errors, it now assembles with as7. 2016-03-26 09:20:46 +10:00
Warren Toomey 1ecd4e0d2e Merge branch 'master' of https://github.com/DoctorWkt/pdp7-unix 2016-03-26 09:08:17 +10:00
Warren Toomey 2071d65404 Some transcription errors in db.s fixed. 2016-03-26 09:07:57 +10:00
Warren Toomey 9ed84f4e85 More notes on the current build. 2016-03-24 17:57:56 +10:00
Warren Toomey 9f30359c56 Added some code to print out ASCIi characters in each word. 2016-03-24 17:50:47 +10:00
Warren Toomey b234e2ad81 Also fixed the alt system to use Phil's bootstrap code. 2016-03-24 17:42:06 +10:00
Warren Toomey 8d69dd6d13 Changed the build so that we boot via Phil's bootstrap code. 2016-03-24 17:38:27 +10:00
Warren Toomey bd13e31f4e Added a -k option to mkfs7 so that it can write a kernel image in PTR 
format to track 80 on the disk.
 2016-03-24 17:24:48 +10:00
Warren Toomey 70d3f91e64 Import the new ed*.s source code from scans. 2016-03-24 09:20:27 +10:00
Warren Toomey a676ccee69 Duplicate rule in the Makefile, fixed. 2016-03-24 09:20:04 +10:00
Warren Toomey 441fe12b0a Fall into single-step mode if we see a low memory write. 2016-03-24 08:57:51 +10:00
Warren Toomey 4f491ba4f9 More transcription errors picked up using the assembler. 2016-03-24 08:49:50 +10:00
Warren Toomey 023f80a6eb Merge branch 'master' of https://github.com/DoctorWkt/pdp7-unix 2016-03-24 08:41:16 +10:00
Warren Toomey 7599646c78 Updated from the new scan that Norman has provided. 2016-03-24 08:40:52 +10:00
Warren Toomey 4fe4d7a047 Updated ed2.s based on the new scans from Norman. 2016-03-24 08:23:00 +10:00
Warren Toomey ce0a5401a9 Add trysys.s to src/sys. 2016-03-24 06:20:38 +10:00
Warren Toomey 945fa20bae Added rules to build the B compiler and modified proto to install it 
as system/bc. Added a b_readme in dmr's home directory to explain
how to compile hello.b.
 2016-03-23 22:45:53 +10:00
Warren Toomey 2cc1097593 Merge branch 'master' of https://github.com/DoctorWkt/pdp7-unix 2016-03-23 22:28:36 +10:00
Warren Toomey d5eb2a6b96 Removed ctrl-Ms and added a newline at the end. 2016-03-23 22:27:36 +10:00
Warren Toomey 851f03a50a mkfs7: Fixed a bug in indirect blocks. 2016-03-23 21:15:07 +10:00
Warren Toomey 99a33c8dde Add check to the filesystem. 2016-03-23 15:22:10 +10:00
Warren Toomey 76bea543a2 Added od and core to the alt/proto file. 2016-03-23 14:21:54 +10:00
Warren Toomey 24e25b765c More build notes. 2016-03-23 14:20:34 +10:00
Warren Toomey 680662bdf0 Merge branch 'master' of https://github.com/DoctorWkt/pdp7-unix 2016-03-23 13:41:53 +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 42c7a240ed I wrote a version of od. 2016-03-23 11:14:01 +10:00
Warren Toomey 58ea0b0b2c I'm working on a better ls for the alt system, but a few bugs. 2016-03-23 10:13:01 +10:00
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