Commit graph

65 commits

Author SHA1 Message Date
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