Byron Lathi
5c74d161d4
Add some basic fat32 code
2023-12-03 23:27:45 -08:00
Byron Lathi
de804ac3ca
Use tmp1 instead of y register
...
popa clobbers y
2023-12-01 22:53:41 -08:00
Byron Lathi
e8452eb98c
Add rtc_set
2023-12-01 08:28:38 -08:00
Byron Lathi
32c82044a7
Fix more bugs
2023-12-01 00:56:16 -08:00
Byron Lathi
a169b30028
Fix not saving to ptr1 and comparing y
2023-11-30 23:58:30 -08:00
Byron Lathi
597d15e234
Add terminal write as well, use it in kernel
2023-11-29 17:19:18 -08:00
Byron Lathi
b25d0e9bdb
First shot at terminal read
2023-11-29 08:38:25 -08:00
Byron Lathi
5b6a4e1442
Start terminal driver
2023-11-28 23:52:27 -08:00
Byron Lathi
e73d8db74c
Serial Fix
...
Fixes a typo with getc_nb, removes the RTC tick code (since we know it
works now and it is clogging up the screen), read characters in a loop
instead of just once.
2023-11-28 23:23:31 -08:00
Byron Lathi
fd9ccdbce4
Add serial driver and irq support
2023-11-28 22:54:26 -08:00
Byron Lathi
9ce5b7592f
Use longer rtc interval
2023-11-22 20:57:49 -08:00
Byron Lathi
930e802a86
Add init code for mapper
...
init_mapper now remaps so that it can change irq vectors
2023-11-22 17:33:12 -08:00
Byron Lathi
102c4dfe8a
Use vectors for irq and nmi
2023-11-21 18:53:17 -08:00
Byron Lathi
4392a01de8
#53 Reduce interrupts to 128
2023-11-21 08:17:36 -08:00
Byron Lathi
7089b663ca
add interrupt init code (and increase rtc tick rate)
2023-11-20 22:23:18 -08:00
Byron Lathi
531bb4cf13
Fix bad sp and writing to zp0
2023-11-20 18:37:04 -08:00
Byron Lathi
e6a16b0c73
Add device setup test using kernel drivers
2023-11-20 08:29:35 -08:00
Byron Lathi
3861e44693
PIC: Disable all irqs at start
2023-11-19 23:30:02 -08:00
Byron Lathi
1e9be6c764
RTC: Fix threshold/irq_threshold initialization
...
Also throw some newlines in the kernel print messages.
2023-11-19 23:28:11 -08:00
Byron Lathi
680bccee62
Init rtc and pic in kernel
2023-11-19 22:11:29 -08:00
Byron Lathi
a770d938de
Copy bios device functions to kernel
2023-09-04 14:31:55 -07:00
Byron Lathi
7ad1079289
Restart kernel
2023-08-12 11:59:45 -07:00
Byron Lathi
c6098f2d1f
Separate kernel code from test code
...
Eventually I want the kernel to be loaded from the SD card as well, but
it still needs to separate from user programs.
At some point there should be a folder just for the BIOS, which should
read from the boot block of the SD card and start executing, and thats
it.
2022-04-16 21:58:37 -05:00
