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2006-07-01swtch saves callee-saved registersrtm1-17/+27
swtch idles on per-CPU stack, not on calling process's stack fix pipe bugs usertest.c tests pipes, fork, exit, close
2006-06-27file descriptorsrtm1-0/+9
pipes
2006-06-26system call return valuesrtm1-0/+1
initialize 2nd cpu's idt
2006-06-26system call argumentsrtm1-2/+1
2006-06-24boot more than two CPUs, each on own initial stackrtm1-0/+4
2006-06-22compile "user programs"rtm1-19/+27
curproc array
2006-06-15sleep, wakeup, wait, exitrtm1-1/+27
2006-06-15primitive fork and exit system callsrtm1-15/+20
2006-06-13more or less take traps/interruptsrtm1-4/+11
2006-06-12importrtm1-0/+112