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a110d17355
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Author SHA1 Message Date
Stephen Marz
a110d17355 Optimized LCR. Reading from MMIO is slower than overwriting 2019-10-10 08:34:31 -04:00
Stephen Marz
e89ad79cca Fixed UART overriding bits 2019-10-10 08:01:39 -04:00
Stephen Marz
16d3e4e9fe Added info to page allocation table. 2019-10-09 22:02:58 -04:00
Stephen Marz
d667e9c4d6 Added info to page allocation table. 2019-10-09 21:59:17 -04:00
Stephen Marz
deb5c972c2 Make id_map_range easier to read 2019-10-09 21:36:54 -04:00
Stephen Marz
5928b07621 Added comments, fixed formatting 2019-10-09 21:22:29 -04:00
Stephen Marz
1abe0bb336 Fixed over-sizing with kzmalloc 2019-10-09 20:58:31 -04:00
Stephen Marz
88abfb57f2 Fixed typos 2019-10-09 20:57:24 -04:00
Stephen Marz
c4b824dfa7 Fixed looping bug 2019-10-09 20:36:39 -04:00
Stephen Marz
99b98111a4 Added kzmalloc for zeroing allocated memory 2019-10-09 20:36:05 -04:00
Stephen Marz
19eac921db Change to id_map_range 2019-10-09 20:27:45 -04:00
Stephen Marz
7a6ba92732 Ran rustfmt and removed dead code 2019-10-09 20:24:19 -04:00
Stephen Marz
8ad7d2c24c Finished sret comparison 2019-10-09 20:21:25 -04:00
Stephen Marz
72f4ce8d46 Updated delegation and removed sie bit in favor of spie 2019-10-09 20:11:21 -04:00
Stephen Marz
3adc054e2d Added _stack_start and _stack_end to map the stack space 2019-10-09 19:50:03 -04:00
Stephen Marz
d81c619e60 Removed unsafe for id_map_range, added comments 2019-10-09 19:44:39 -04:00
Stephen Marz
037e7044ac No need for a space literal 2019-10-09 19:42:11 -04:00
Stephen Marz
5634c8342b Remove drive..no need for it until block 2019-10-09 19:41:47 -04:00
Stephen Marz
6aff7529c2 Disable interrupts for duration of kinit(), reenable in supervisor mode 2019-10-09 18:35:14 -04:00
Stephen Marz
a2a94006f3 Added newline at the end of file, mapped all of PLIC and CLINT 2019-10-09 18:21:43 -04:00
Stephen Marz
982c4afb77 Switch to gcc so that a stage 1 build is sufficient (./do.sh 91) 2019-10-09 18:21:20 -04:00
Stephen Marz
5ad54c6299 Finished MMU, page allocation, and kmem allocation. Switched to supervisor mode in kmain() 2019-10-09 18:09:56 -04:00
Stephen Marz
7f00a999d3 Rename mem.rs to page.rs. We will make a localized allocator for mem.rs, later 2019-10-07 16:43:48 -04:00
Stephen Marz
4a6c58cda6 Added comments 2019-10-07 16:38:03 -04:00
Stephen Marz
d64cad37b9 Update boxed feel. Both are fine, just want to represent both ways to do this. 2019-10-07 16:33:38 -04:00
Stephen Marz
0fe8e027d3 Get rid of spurious mut 2019-10-07 16:33:07 -04:00
Stephen Marz
2937d95f71 Get rid of spurious mut 2019-10-07 16:32:16 -04:00
Stephen Marz
9aa757f9f2 Updates, added a table length 2019-10-07 16:31:27 -04:00
Stephen Marz
076dceff73 Added global allocator and tests 2019-10-07 16:03:39 -04:00
Stephen Marz
a321507a3b Added chapter 3 2019-10-07 14:43:28 -04:00
Stephen Marz
77994f2289 Added chapter 3 2019-10-06 22:20:39 -04:00
Stephen Marz
17d53bac20
Merge pull request #6 from koutheir/patch-1 
Comments on assembly code in boot.S
 2019-10-06 13:38:37 -04:00
Dr. Koutheir Attouchi
b6f9be4bbb
More comments on what's going on 2019-10-06 17:52:59 +02:00
Dr. Koutheir Attouchi
68e33189fd
Commenting what's being done 2019-10-06 17:16:42 +02:00
Stephen Marz
0b2cbfcb35 Closes issue #5 : Added comments to virt.lds to explain what each section does. 2019-10-06 11:06:51 -04:00
Stephen Marz
33d27d9efa Use byte iterator 2019-10-05 00:18:24 -04:00
Stephen Marz
691c5b1653 Go back to 8000_0000 2019-10-04 14:11:32 -04:00
Stephen Marz
7a55de2601 Parse out words for initialization 2019-10-04 08:25:39 -04:00
Stephen Marz
14f67420e0 Remove stop bits 2019-10-03 22:07:43 -04:00
Stephen Marz
661ccca9d0 Updates to chapter 2 2019-10-03 21:56:19 -04:00
Stephen Marz
10c493738e Added chapter 2 2019-10-02 08:41:58 -04:00
Stephen Marz
1402b8c8bd Fixes issue #1 - assembly trap vector has been added and commented 
to give context to what it will do in the future.
 2019-09-29 08:04:36 -04:00
Stephen Marz
e5190b7dc4 The original OS won't compile if the asm_trap_vector isn't there. It won't 
do anything, since we haven't gotten that far, yet, but it needs to at least
be a symbol for the linker to have.
 2019-09-29 08:00:12 -04:00
Stephen Marz
1dea574177 Rust gets a little mad with the three forward-slashes /// due to 
rustdoc. So, these were spaced out to look like normal comments.
 2019-09-29 07:59:45 -04:00
Stephen Marz
f110f25ad8 Added make_hdd.sh to make hdd.dsk 2019-09-27 13:19:51 -04:00
Stephen Marz
a9bbdf8554 Added chapters 0 and 1 2019-09-27 13:17:29 -04:00
Stephen Marz
85db341894
Initial commit 2019-09-27 13:12:53 -04:00