collapseos/arch/z80/rc2014/blk/601

ACIA driver

Manage I/O from an asynchronous communication interface adapter
(ACIA). provides "(emit)" to put c char on the ACIA as well as
an input buffer from which a provided "(key)" reads. This driver
installs an interrupt handler at RST38 to handle RX.      

To use, begin by loading declarations (B582) before xcomp is    
loaded. These declarations provide default values for ports and 
memory offsets that you can override. See B582.

Then, in the driver part, load range 583-588.
Copy ACIA driver to blkfs We can get rid of acia.z80, but not of acia.fs yet, we still need it. 2020-04-24 02:42:41 +10:00			`ACIA driver`

			`Manage I/O from an asynchronous communication interface adapter`
acia: make wholly cross compilable 2020-05-12 11:52:44 +10:00			`(ACIA). provides "(emit)" to put c char on the ACIA as well as`
rc2014: add a declaration part to ACIA drivers Driver configuration don't need their own words at runtime, we only need to compile them as literals when compiling words. Now that we have this "declaration blocks" pattern emerging, it seems like a good idea to take advantage of this in drivers, both for simplifying the xcomp unit and to make final binary slimmer. 2020-06-29 07:30:01 +10:00			`an input buffer from which a provided "(key)" reads. This driver`
			`installs an interrupt handler at RST38 to handle RX.`
Copy ACIA driver to blkfs We can get rid of acia.z80, but not of acia.fs yet, we still need it. 2020-04-24 02:42:41 +10:00
rc2014: add a declaration part to ACIA drivers Driver configuration don't need their own words at runtime, we only need to compile them as literals when compiling words. Now that we have this "declaration blocks" pattern emerging, it seems like a good idea to take advantage of this in drivers, both for simplifying the xcomp unit and to make final binary slimmer. 2020-06-29 07:30:01 +10:00			`To use, begin by loading declarations (B582) before xcomp is`
			`loaded. These declarations provide default values for ports and`
			`memory offsets that you can override. See B582.`
Copy ACIA driver to blkfs We can get rid of acia.z80, but not of acia.fs yet, we still need it. 2020-04-24 02:42:41 +10:00
rc2014: add a declaration part to ACIA drivers Driver configuration don't need their own words at runtime, we only need to compile them as literals when compiling words. Now that we have this "declaration blocks" pattern emerging, it seems like a good idea to take advantage of this in drivers, both for simplifying the xcomp unit and to make final binary slimmer. 2020-06-29 07:30:01 +10:00			`Then, in the driver part, load range 583-588.`