149 Commits

Author	SHA1	Message	Date
Stephen Marz	a42328955d	Ignore framebuffer binaries	2020-05-24 12:41:37 -04:00
Stephen Marz	ffcd84dc22	Added code for drawing to GPU	2020-05-24 12:41:11 -04:00
Stephen Marz	b29ab98088	Move code into userspace	2020-05-24 12:40:26 -04:00
Stephen Marz	3cf0ef6fba	Add userspace system calls for running framebuffer	2020-05-24 12:05:35 -04:00
Stephen Marz	43abdd358f	Use a series expansion for cosine	2020-05-24 10:06:15 -04:00
Stephen Marz	56ae6230dd	Fixed cosine. It's backwards from how pixels work.	2020-05-23 11:53:48 -04:00
Stephen Marz	c6b4d3c7ca	Added cosine function	2020-05-23 11:24:36 -04:00
Stephen Marz	c8dc4ff350	Turn on the FPU for OS math.	2020-05-23 11:24:25 -04:00
Stephen Marz	a0c0134fb5	White background	2020-05-23 09:13:12 -04:00
Stephen Marz	b7880be6ac	Disambiguate r from red to rect from Rectangle	2020-05-23 08:52:56 -04:00
Stephen Marz	9ddb77a270	Added width and height fields to Device.	2020-05-23 08:51:58 -04:00
Stephen Marz	af3527b081	Calculate using usize. Didn't do the math, but this seems a safer option.	2020-05-23 08:48:29 -04:00
Stephen Marz	6852de1e55	Added new for Pixel. Made rectangle copyable	2020-05-23 08:43:14 -04:00
Stephen Marz	bfd3ee66f4	Added rectangle drawer for testing.	2020-05-23 08:37:46 -04:00
Stephen Marz	907372dd48	GPU is initializing with Vol Orange	2020-05-23 08:24:50 -04:00
Stephen Marz	36207992a0	Added configuration and init.	2020-05-23 07:36:38 -04:00
Stephen Marz	5bc745931b	Add GPU init	2020-05-23 06:23:32 -04:00
Stephen Marz	37cc8b7fae	Add kmem for framebuffer allocation	2020-05-23 06:23:21 -04:00
Stephen Marz	b9111aa88a	Added GPU to virtio, added interrupt handler, and removed nographic switch to QEMU	2020-05-22 22:34:03 -04:00
Stephen Marz	5cac50aa74	Add feature bits	2020-05-22 22:22:51 -04:00
Stephen Marz	a95afaff71	made constants public	2020-05-22 22:10:23 -04:00
Stephen Marz	9028044ced	Added structures for GPU	2020-05-22 22:00:33 -04:00
Stephen Marz	b5b6556a6c	Added handler for 7 Store access fault.	2020-05-22 22:00:16 -04:00
Stephen Marz	af8066cf84	Added comments and made the formula for program pages clearer.	2020-05-22 21:59:55 -04:00
Stephen Marz	5b89cd891a	See if our new floating point works	2020-05-22 16:29:44 -04:00
Stephen Marz	b78c7aef42	Remove inode.size as a parameter to load_proc.	2020-05-22 16:29:22 -04:00
Stephen Marz	d8ca63b780	Get size of program in memory from ELF not from inode.	2020-05-22 16:28:38 -04:00
Stephen Marz	3653160781	Remove NUM_INDIRECT_POINTERS and replace with global constant.	2020-05-21 09:45:14 -04:00
Stephen Marz	0b83a3629a	Get set up to support file descriptors in user space.	2020-05-19 09:27:57 -04:00
Stephen Marz	7db18179a6	Remove unnecessary code.	2020-05-18 12:22:04 -04:00
Stephen Marz	55ccc812e6	Add comments.	2020-05-18 09:11:41 -04:00
Stephen Marz	c1c8f2876b	Remove talloc and tfree, instead we will use Rusts built-in Box	2020-05-18 09:07:12 -04:00
Stephen Marz	b1ae1e3a4f	Added comments to syscall.rs	2020-05-18 09:00:34 -04:00
Stephen Marz	c0c26a3ce5	Use Box instead of kmalloc	2020-05-17 17:49:10 -04:00
Stephen Marz	e811451879	Clean up context switch code.	2020-05-17 17:30:10 -04:00
Stephen Marz	ba661749fc	Don't let scheduler grab a lock. If it can't get the lock, then go back to the process that caused this.	2020-05-17 15:26:20 -04:00
Stephen Marz	f5c94e377b	Protect the process list using mutex.	2020-05-17 15:20:30 -04:00
Stephen Marz	43e18b498d	Don't grab the table unless we really need it.	2020-05-17 15:13:53 -04:00
Stephen Marz	fe023e026e	Add testing printout.	2020-05-17 15:08:01 -04:00
Stephen Marz	9326255507	Get rid of unnecessary cast.	2020-05-17 15:07:03 -04:00
Stephen Marz	d6843c1b20	Create an exec system call and move loading an ELF file into that.	2020-05-17 15:06:30 -04:00
Stephen Marz	c68a0db582	We will need an exec type system call. The majority of the test code will need to work in there.	2020-05-16 12:17:58 -04:00
Stephen Marz	e3e8ba8ae6	Missed a register in the trap frame	2020-05-16 10:58:13 -04:00
Stephen Marz	c2ef6130fb	Use a map for environment variables in a process.	2020-05-16 10:43:21 -04:00
Stephen Marz	2d74b6e6fa	Formatting	2020-05-16 10:41:38 -04:00
Stephen Marz	23bca871a6	Change Buffer to accept usize and implement Clone	2020-05-15 19:36:24 -04:00
Stephen Marz	ff064acb3b	Replace after take for open	2020-05-15 14:43:44 -04:00
Stephen Marz	720d084364	During a trap, only save the FPU if the process changed them.	2020-05-15 13:11:19 -04:00
Stephen Marz	3793ad1e87	Added kernel support for floating point registers.	2020-05-15 13:01:57 -04:00
Stephen Marz	c649947707	Added Registers to CPU so we don't have to hardcode the register number. This makes it easier to read and figure out what's happening	2020-05-15 12:48:05 -04:00