12 Commits

Author	SHA1	Message	Date
Virgil Dupras	53239c8f84	De-stabilize (n)	2020-09-19 19:44:15 -04:00
Virgil Dupras	e4a4a9800d	z80: Use BC as IP register instead of IY ... It's a bit more inconvenient in terms of register protection (BC is much more generally useful than IY), but it makes tight spots such as next and execute much faster, so I think it's worth it.	2020-07-06 23:31:00 -04:00
Virgil Dupras	3ea221d0eb	z80: inline all uses of pushRS/popRS ... I'm trying to move stuff around and it simplifies things. Will make a lot more sense to inline when BC replaces IY.	2020-07-05 21:54:01 -04:00
Virgil Dupras	daeb3b3c69	Extract (n) code from stable ABI	2020-07-05 14:16:24 -04:00
Virgil Dupras	5705cd5c31	Extract EXIT code from stable ABI zone	2020-07-05 13:41:12 -04:00
Virgil Dupras	4a91ee5c9c	Extract (s) code from stable ABI zone ... Only its jump addr remains.	2020-07-05 08:54:22 -04:00
Virgil Dupras	440ea43a88	z80a: make mnemonic names more uniform across assemblers ... Initially, I used the same letters as those used in the z80 ref docs, but it makes the different assemblers harder to use than they should. Having consistent "argtype" rules across assemblers should help.	2020-06-27 22:01:56 -04:00
Virgil Dupras	2d9a07d215	blkunpack: don't include trailing empty lines ... This was becoming heavy to manage.	2020-06-23 06:52:34 -04:00
Virgil Dupras	eba83fa9a9	z80: use named labels for boot routines ... The usage of numerotated labels for this was becoming severly confusing.	2020-06-18 07:16:40 -04:00
Virgil Dupras	40f92b9bab	z80: optimize chkPS ... Inline it in next and make chkPS, call a newly reserved label for it directly, removing a layer of indirection. This frees a spot in the stable ABI.	2020-06-14 09:48:10 -04:00
Virgil Dupras	f6ded7712e	VE: add 't' ... This is the first commit I do entirely in VE. It's a habit I'm planning on taking as it helps a lot to find usability issues.	2020-06-11 18:12:01 -04:00
Virgil Dupras	503dbe9a2c	Copy boot.z80 to blkfs	2020-04-22 21:19:12 -04:00