meighti

I added the function timerhalt() to start.c Since writing to the test finisher device should be done in machine mode, a new flag is set by timerhalt() in supervisor mode....

I created pull request [#174 ](https://github.com/mit-pdos/xv6-riscv/pull/174) using @shunshu solution.

When you run make qemu-gdb, you are debugging the kernel, not user processes like user/_primes. You might want to take a look at trampoline.S, which has a 'sret' instruction for...

Specifically, this command: jdate '+%Y/%m/%d' -j \`jdate '+%Y/%m/%d' -g 1397/01/02\` should give: 1397/01/02

It is easy to write a simple test in bash , like the e.g. I mentioned in previous comment. Also in my opinion, it would have been safe to set:...

Amended [my first commit](https://github.com/meighti/jcal/commit/5ea592fcaeb6cd233d80dd96420b04b4e8089fb6), since further examination showed that contrary to my initial assumption, that one-liner didn't fix the issue. So I had to make a more conservative set of...

As for 183amir's suggestion of having a test suite, I can only say at the moment that it would be welcomed if anybody has the time and desire to write...