Russ Cox
48755214c9
assorted fixes:
...
* rename c/cp to cpu/proc
* rename cpu.context to cpu.scheduler
* fix some comments
* formatting for printout
2009-08-30 23:02:08 -07:00
Russ Cox
0aef891495
shuffle and tweak for formatting.
...
pdf has very good page breaks now.
would be a good copy for fall 2009.
2009-08-08 01:07:30 -07:00
rsc
34295f461a
group locks into structs they protect.
...
few naming nits.
2009-05-31 05:12:21 +00:00
rsc
74afa70d30
Add serial port input/output.
...
Delete parallel port output.
Works well with qemu -nographic mode.
2009-05-31 00:24:11 +00:00
rsc
2157576107
be consistent: no underscores in function names
2009-03-08 22:07:13 +00:00
kolya
289bbef733
minor cleanup
2008-10-12 20:19:16 +00:00
kolya
02cc595f28
clean up circular buffers, so pipe can queue 512 bytes rather than 511
2008-08-22 00:26:22 +00:00
kolya
5c5470a2fa
fix obvious printf nits after reading through code
2008-08-21 23:24:02 +00:00
rsc
aefc13f8ba
nit
2007-09-27 20:25:32 +00:00
rsc
75506c6655
use console lock
2007-09-27 12:29:25 +00:00
rtm
fbd8857d4d
make new Homework 8 work
2007-08-30 18:21:35 +00:00
rsc
37321196a4
oops - broke circular buffer
2007-08-30 18:20:53 +00:00
rsc
eb52c7de1d
comments; rename irq_ to pic_
2007-08-28 19:04:36 +00:00
rsc
5516be1fed
spaces around else for rtm
2007-08-28 18:37:41 +00:00
rsc
e4d6a21165
more consistent spacing
2007-08-28 18:32:08 +00:00
rsc
c1b100e930
nits
2007-08-28 18:23:48 +00:00
rsc
d844f0f9d9
Change dev read/write functions
...
to take inode* instead of minor number.
Unlock console inode during console_read
and console_write. Otherwise background
processes cannot write to console while the
shell is reading it waiting for input.
2007-08-28 17:49:49 +00:00
rsc
51c0c1a8fe
avoid double echo
2007-08-28 04:26:19 +00:00
rsc
e6ffaa9d8e
oops
2007-08-28 04:13:40 +00:00
rsc
f0d11fea82
Move keyboard code into kbd.c; add backspace handling.
2007-08-28 03:28:13 +00:00
rsc
558ab49f13
delete unnecessary #include lines
2007-08-27 23:26:33 +00:00
rsc
97ac612fb1
nits
2007-08-24 20:28:08 +00:00
rsc
fe5f50a03d
fixes
2007-08-14 19:41:01 +00:00
rsc
5e8c5d8bb8
formatting; split kbd constants into kbd.h
2007-08-14 19:31:16 +00:00
rsc
b6095304b7
Make cp a magic symbol.
2007-08-10 16:37:27 +00:00
rsc
f2f062da61
check p->killed for long-lived sleeps
2007-08-08 10:29:42 +00:00
rsc
c664dd5d23
missing void
2007-08-08 09:32:39 +00:00
rsc
07018064bb
add EOF handling to console_read - works with cat
2007-08-08 08:04:02 +00:00
rsc
5a71f93301
debugging rearrangements
2006-09-07 16:52:13 +00:00
rsc
ab17e3198b
debugging prints
2006-09-07 15:45:38 +00:00
rsc
19297caf0d
fix ide, pit interfaces
2006-09-07 15:29:54 +00:00
rsc
1dca3afbbb
remove _ prefixes
2006-09-07 13:08:23 +00:00
kaashoek
f70172129c
run without lapic and ioapic, if they are not present
...
if no lapic available, use 8253pit for clock
now xv6 runs both on qemu (uniprocessor) and bochs (uniprocessor and MP)
2006-09-07 01:37:58 +00:00
kaashoek
f9bc4452b5
nit in console interrupts
2006-09-07 00:00:33 +00:00
rsc
f552738889
no /* */ comments
2006-09-06 17:50:20 +00:00
rsc
9e9bcaf143
standardize various * conventions
2006-09-06 17:27:19 +00:00
rsc
a650c606fe
spacing fixes: no tabs, 2-space indents (for rtm)
2006-09-06 17:04:06 +00:00
rsc
45854caa93
print "0" for null string
2006-09-06 16:38:39 +00:00
kaashoek
0b6ab8416e
don't send keyboard interrupts to the second cpu, if we have only one cpu.
...
xv6 seems to work fine on uniprocessor now.
2006-09-03 17:34:09 +00:00
kaashoek
7abf49d2f2
remove duplication
...
don't use the same name for two different pieces of code
2006-09-03 15:39:29 +00:00
rtm
2b19190c13
clean up stale error checks and panics
...
delete unused functions
a few comments
2006-08-29 14:45:45 +00:00
kaashoek
8b58e81077
i/o redirection in sh
...
better parsing of sh commands (copied from jos sh)
cat: read from 1 if no args
sbrk system call, but untested
getpid system call
moved locks in keyboard intr, but why do we get intr w. null characters from keyboard?
2006-08-23 01:09:24 +00:00
kaashoek
e958c538fa
commented out code for cwd
2006-08-15 15:53:46 +00:00
rtm
17a856577f
init creates console, opens 0/1/2, runs sh
...
sh accepts 0-argument commands (like userfs)
reads from console
2006-08-11 13:55:18 +00:00
rtm
5be0039ce9
interrupts could be recursive since lapic_eoi() called before rti
...
so fast interrupts overflow the kernel stack
fix: cli() before lapic_eoi()
2006-08-10 22:08:14 +00:00
rtm
8a8be1b8c3
low-level keyboard input (not hooked up to /dev yet)
...
fix acquire() to cli() *before* incrementing nlock
make T_SYSCALL a trap gate, not an interrupt gate
sadly, various crashes if you hold down a keyboard key...
2006-08-10 02:07:10 +00:00
kaashoek
28d9ef04dd
printf
...
convert userfs to use printf
bfree
ifree
writei
start on unlink
2006-08-10 01:28:57 +00:00
kaashoek
2601de0032
fix test program: don't close before writing
...
set fd to writeable on open for write
2006-08-09 17:25:10 +00:00
kaashoek
6fa5ffb56f
devsw
...
checkpoint: write(fd,"hello\n",6) where fd is a console dev almost works
2006-08-09 16:04:04 +00:00
rtm
32630628a9
open()
2006-07-29 09:35:02 +00:00
