11 commits

Author	SHA1	Message	Date
Robert Morris	329935eca8	fix uart.c to work with UART_TX_BUF_SIZE == 1	2020-11-05 06:56:51 -05:00
Matt Harvey	6781ac0036	Corrects order of UART RX/TX interrupt enable bits ... (per http://byterunner.com/16550.html and manually tested in qemu bare metal echo)	2020-09-14 14:49:57 -07:00
Robert Morris	490f91ab53	move panicked check to uart.c	2020-08-28 09:00:41 -04:00
Robert Morris	2ae9c8e272	defines for UART register bits	2020-08-10 11:19:10 -04:00
Robert Morris	0f50e9527c	fix printf() in interrupts	2020-08-10 11:19:10 -04:00
Robert Morris	27057bc9b4	interrupt-driven uart output, hopefully a nice example for teaching.	2020-08-10 11:19:10 -04:00
Robert Morris	1ec50c5848	xxx	2019-07-28 07:43:22 -04:00
Robert Morris	629faafa36	cleaner UART register interface	2019-07-27 06:44:24 -04:00
Robert Morris	a33f60fea3	console/uart tweaks	2019-07-27 05:47:19 -04:00
Frans Kaashoek	67702cf706	Checkpoint switching to per-process locks, in attempt clarify xv6's ... locking plan, which is a difficult to understand because ptable lock protects many invariants. This implementation has a bug: once in a while xv6 unlocks a proc lock that is locked by another core.	2019-07-02 09:14:47 -04:00
Robert Morris	5753553213	separate source into kernel/ user/ mkfs/	2019-06-11 09:57:14 -04:00

Renamed from uart.c (Browse further)