noncpu/hdl/top.sv, branch wip Unnamed repository; edit this file 'description' to name the repository. https://git.jblake.org/noncpu/atom?h=wip 2021-04-18T21:46:30Z Move the core logic out of the top module. 2021-04-18T21:46:30Z Julian Blake Kongslie 2021-04-18T21:46:30Z urn:sha1:b95b2635a4d1c9b9a87588e54995cc5cdaada79f Change synthesis of PLL wrapper to avoid latch logic. 2021-04-15T23:39:58Z Julian Blake Kongslie 2021-04-15T23:39:58Z urn:sha1:abd9703a1b96225db0d7317bf8833467150bae26 Use internal PLL for clock and reset generation. 2021-04-15T01:24:34Z Julian Blake Kongslie 2021-04-14T15:44:31Z urn:sha1:3975a7e26d0ad8c7f33e28e1222d1e09f7bcdb82 Add UART receive opbit. 2021-04-08T00:02:31Z Julian Blake Kongslie 2021-04-08T00:02:31Z urn:sha1:196b67bba9fcb8d8752311f4cf461c82c3d62efb Switch back to $past-based scheduling; my clever idea wasn't clever enough. 2021-04-08T00:02:03Z Julian Blake Kongslie 2021-04-08T00:02:03Z urn:sha1:238a43e587bfbe6574d34ef36553619249797260 Change the null byte from no-op to halt. 2021-04-05T20:32:41Z Julian Blake Kongslie 2021-04-05T20:32:41Z urn:sha1:8c0b7ea39d57cb6c80cf66207291837d95c71940 Change our simulator timing model to use continuous assignment guards. 2021-04-05T17:20:02Z Julian Blake Kongslie 2021-04-05T17:20:02Z urn:sha1:6a1c04608090cc8fc88aafac0b4899e4cbb9cae9 Instead of depending on verilator getting $past right, this (ab-)uses the SystemVerilog scheduling model which allows us to get a consistent view of the universe by "isolating" the blocking updates. Easier to code to and seems to be more reliable in verilator. Make PC ADDR-sized rather than DATA-sized for now 2021-04-05T17:19:01Z Julian Blake Kongslie 2021-04-05T17:19:01Z urn:sha1:0bf6ec12c73e9f037de6b35bb08d94dfe9c6045c Remove some old debug messages. 2021-04-05T17:16:58Z Julian Blake Kongslie 2021-04-05T17:16:58Z urn:sha1:5d3d64d703fd8c1ef94bd3b67a2e3e43414df604 Remove idx, add indirect jumps, renumber opcodes so NOP=0, add absolute labels to asm.rb 2021-04-04T23:20:24Z Julian Blake Kongslie 2021-04-04T23:20:24Z urn:sha1:6a031fb49d595726da16adcf868475b1e104d60d