mirror of
https://github.com/hsoft/collapseos.git
synced 2024-12-31 08:08:06 +11:00
12 lines
370 B
Plaintext
12 lines
370 B
Plaintext
|
: ACIA$
|
||
|
|
H@ [ ACIA( LITN ] ! 0 [ ACIAR> LITN ] C!
|
||
|
|
1 [ ACIAW> LITN ] C! ( write index starts one pos later )
|
||
|
|
[ ACIA_BUFSZ LITN ] ALLOT
|
||
|
|
( setup ACIA
|
||
|
|
CR7 (1) - Receive Interrupt enabled
|
||
|
|
CR6:5 (00) - RTS low, transmit interrupt disabled.
|
||
|
|
CR4:2 (101) - 8 bits + 1 stop bit
|
||
|
|
CR1:0 (10) - Counter divide: 64 )
|
||
|
|
0b10010110 [ ACIA_CTL LITN ] PC!
|
||
|
|
(im1) ;
|