123 Commits

Author	SHA1	Message	Date
Stephen Marz	429b056921	Updates to system call. Change stack pointer for MMU	2020-03-10 12:44:08 -04:00
Stephen Marz	88c672171e	Fixed trap. Forgot to reset mtvec in switch_to_user	2020-03-10 12:41:16 -04:00
Stephen Marz	f2f5c855cf	M	2020-03-10 11:21:15 -04:00
Stephen Marz	57145beefd	Fixed trap handler, load kernel stack from trap, fixed init, map a larger swath of memory for init.	2020-03-10 11:20:00 -04:00
Stephen Marz	e6ccf15bda	Added .gitignore to make this doable	2020-03-09 17:51:32 -04:00
Stephen Marz	ee92f8e123	Ugh. Remove target	2020-03-09 17:51:10 -04:00
Stephen Marz	b139313874	Added chapter 8	2020-02-22 08:53:59 -05:00
Alex Chi	2474df886c	Add data flush in uart put function	2020-02-03 10:33:00 +08:00
Stephen Marz	4ffb6e3e3b	Added syscall and shell scheduler	2020-01-18 20:22:47 -05:00
Stephen Marz	e8e379e557	Updates to ch6 -- post ready.	2019-12-08 14:30:41 -05:00
Stephen Marz	eb0c943a71	Updates to process.	2019-12-07 22:04:13 -05:00
Stephen Marz	c1e247cad5	Move lots of code to support user processes.	2019-12-07 13:59:39 -05:00
Stephen Marz	f8c2faa3ae	Updates to process code.	2019-12-05 19:52:02 -05:00
Stephen Marz	fa82110eac	Added adjustment constants.	2019-11-28 12:27:13 -05:00
Stephen Marz	ba678d2252	Fixed HEAP map bug.	2019-11-28 12:22:42 -05:00
Stephen Marz	b723763292	Free root table.	2019-11-28 12:05:24 -05:00
Stephen Marz	b61b3ebbf5	Use zalloc to clear page tables.	2019-11-28 12:04:21 -05:00
Stephen Marz	c99bff8944	Use zalloc to clear page tables.	2019-11-28 12:02:37 -05:00
Stephen Marz	c5179e60d6	Added virtual memory allocation.	2019-11-28 12:01:52 -05:00
Stephen Marz	26e37d33d3	Added comments to process	2019-11-27 23:42:50 -05:00
Stephen Marz	d0c3c9ff6e	Add Process structure and routines.	2019-11-27 17:02:07 -05:00
Stephen Marz	4ec1301e8f	Added chapter 6	2019-11-27 12:59:29 -05:00
Stephen Marz	b9158e5ef7	Added comments for plic.	2019-11-18 19:30:19 -05:00
Stephen Marz	5ca14d6e65	Added comments, moved UART	2019-11-18 19:21:32 -05:00
Stephen Marz	61bb8f3a43	Added comments	2019-11-18 19:19:05 -05:00
Stephen Marz	7faf580765	Added PLIC	2019-11-18 19:14:16 -05:00
Stephen Marz	fb86ff06da	Added PLIC	2019-11-18 19:14:08 -05:00
Stephen Marz	03ff50ef30	Added PLIC	2019-11-18 19:13:52 -05:00
Stephen Marz	b3cd92dc41	Added comments	2019-11-10 09:20:40 -05:00
Stephen Marz	e2dfa8661f	Remove public constants	2019-11-04 15:35:24 -05:00
Stephen Marz	f7547d5c59	Add comments about pointer arithmetic.	2019-11-04 15:27:56 -05:00
Stephen Marz	783cdcfc3b	Remove if statement--let boolean condition stand	2019-11-04 15:26:47 -05:00
Stephen Marz	0c71107da8	Add PLIC functions	2019-11-04 15:25:27 -05:00
Stephen Marz	49d8d6666a	Start chapter 5	2019-11-04 13:14:28 -05:00
Stephen Marz	f13948d5c0	Fixed typos, updates.	2019-11-04 13:04:00 -05:00
Stephen Marz	6cbf12ada9	Updates to pages	2019-11-03 21:26:39 -05:00
Stephen Marz	6cc5cba4b8	Added return_pc as mutable	2019-11-03 21:23:30 -05:00
Stephen Marz	07dffe1823	added ecall printf	2019-11-03 21:21:43 -05:00
Stephen Marz	175c4fc7eb	Added timer reset in async 7	2019-11-03 21:17:29 -05:00
Stephen Marz	4211090d17	Fixed typos	2019-11-03 19:08:35 -05:00
Stephen Marz	a76745278e	Fixed unit type	2019-11-03 19:07:42 -05:00
Stephen Marz	ac5e41ceb4	Update comments	2019-11-03 19:06:38 -05:00
Stephen Marz	79a6500c0b	Rename stat to status	2019-11-03 19:03:10 -05:00
Stephen Marz	5a8523099a	Added epc to trap 3 and 11	2019-11-03 19:00:46 -05:00
Stephen Marz	efaecf96d6	Fixed typo	2019-11-03 19:00:24 -05:00
Stephen Marz	ee5094d821	Added shell traps	2019-11-03 19:00:14 -05:00
Stephen Marz	ccad138c03	Changed trap to machine-only	2019-11-03 18:56:43 -05:00
Stephen Marz	d8b0313842	Remove s_trap in ASM	2019-11-03 18:41:21 -05:00
Stephen Marz	bb64443076	Remove s_trap	2019-11-03 18:41:07 -05:00
Stephen Marz	aaad7c1cec	Added comments and updates to traps	2019-11-02 02:44:40 -04:00