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130 Commits
Author SHA1 Message Date
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
Phil Budne 9175bf8931 remove unused variable 2016-03-22 20:24:41 -04:00
Phil Budne 156f5f1796 Phil's mods to a7out: read namelist file(s); symbolic input/output 2016-03-22 20:09:36 -04:00
Phil Budne 2b4aeb3bab as7: make I/II/filename output match as.s behavior 2016-03-22 20:07:20 -04:00
rswier 9f69fc62da Cleanup 
Minor code cleanup
 2016-03-21 22:13:32 -04:00
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 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 b9fa7fb4fb Fix up the link count code. 2016-03-19 14:37:23 +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 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
rswier c35b1e2add Replace badd/uind with vector 
vector instruction now used for array referencing.  I had overlooked it.
Also, minor cleanup.
 2016-03-18 01:33:47 -04:00
Warren Toomey fbbe0c6729 Added command line options to enable . and .. 2016-03-17 09:08:37 +10:00
rswier b3b868ed50 Ported B compiler b.c to b.b. 
Ported B compiler b.c to b.b.  It is able to compile itself.  Hints are
in the comment block.
 2016-03-16 01:46:35 -04:00
Warren Toomey 320dd0418f Add missing dput to .rename 2016-03-16 11:24:56 +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 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 
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 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
rswier a7b4608711 B compiler update 
More progress
 2016-03-13 03:41:14 -04:00
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
rswier c62890ab56 B compiler development 
More stuff working.
 2016-03-11 00:29:01 -05:00
Warren Toomey 97f29f046c Moved proto and password to build/ 2016-03-11 10:30:05 +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 
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
Phil Budne d7d7d592d7 fix "rim" format 2016-03-10 00:11:20 -05:00
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
Tom Everett 587d0a3733 added a readme for the tools 2016-03-09 18:05:08 -07:00
Warren Toomey 6ecf5da1a3 Updated README.md 2016-03-10 10:22:40 +10:00