7001446212
Recipes contain bits and pieces of hardware-related knowledge, but these bits feel sparse. I've been wanting to consolidate hardware- related documentation for a while, but always fell at odds with the recipes organisation. We don't have recipes anymore, just a /doc/hw section that contains hardware-related documentation which often translate to precise instructions to run Collapse OS on a specific machine. With this new organisation, I hope to end up with a better, more solid documentation.
17 lines
561 B
Plaintext
17 lines
561 B
Plaintext
( We process the 0x20 exception by pre-putting a mask in the
|
|
(HL) we're going to write to. If it wasn't a 0x20, we put a
|
|
0xff mask. If it was a 0x20, we put a 0x7f mask. )
|
|
: @GET,
|
|
A 0x03 LDri, ( @GET )
|
|
DE COM_DRV_ADDR LDdi,
|
|
0x28 RST, JRNZ, L2 FWR ( maybeerror )
|
|
A ORr,
|
|
CZ RETc, ( Sending a straight NULL ends the comm. ) ;
|
|
: @PUT, ( @PUT that char back )
|
|
C A LDrr,
|
|
A 0x04 LDri, ( @PUT )
|
|
0x28 RST, JRNZ, L3 FWR ( error )
|
|
A C LDrr, ;
|
|
H@ ORG !
|
|
HL DEST_ADDR LDdi, ( cont. )
|