spacing fixes: no tabs, 2-space indents (for rtm)

fix writing the indirect block

user-level malloc (untested)
nit in sbrk
indirect block
fix dup to share fd struct

set size for directories correctly in wdir and mkfs
mkdir
ls shows stat info for each dir entry

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 key

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...

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block bitmap
balloc

exec arguments

primitive exec

namei

bread
iget
mkfs makes a file system image
put this in your .bochsrc:
ata0-slave: type=disk, mode=flat, path="fs.img", cylinders=1024, heads=1, spt=1