11 Commits

Author	SHA1	Message	Date
Eddie Hung	b178761551	ice40: reduce ABC9 internal fanout warnings with a param for CI->I3	2020-01-24 11:59:48 -08:00
Eddie Hung	500ed9b501	Sensitive to direct inst of $__ICE40_CARRY_WRAPPER; recreate SB_LUT4	2019-12-09 12:45:22 -08:00
Eddie Hung	12c692f6ed	Revert "Merge pull request #1280 from YosysHQ/revert-1266-eddie/ice40_full_adder" ... This reverts commit c851dc1310, reversing changes made to f54bf1631f.	2019-08-12 12:06:45 -07:00
David Shah	f9020ce2b3	Revert "Wrap SB_LUT+SB_CARRY into $__ICE40_CARRY_WRAPPER"	2019-08-10 17:14:48 +01:00
Eddie Hung	675c1d4218	Add ice40_wrapcarry pass, rename $__ICE40_FULL_ADDER -> CARRY_WRAPPER	2019-08-07 16:29:38 -07:00
Eddie Hung	6b314c8371	Wrap SB_CARRY+SB_LUT into $__ICE40_FULL_ADDER	2019-08-07 16:29:38 -07:00
Eddie Hung	5fb27c071b	$__ICE40_CARRY_LUT4 -> $__ICE40_FULL_ADDER as per @whitequark	2019-07-15 12:03:51 -07:00
Eddie Hung	e0e5d7d68e	Fix spacing	2019-07-12 01:15:22 -07:00
Eddie Hung	c6e16e1334	_ABC macro will map and unmap to this new box	2019-07-12 00:51:37 -07:00
Clifford Wolf	6c84341f22	Fixed trailing whitespaces	2015-07-02 11:14:30 +02:00
Clifford Wolf	f78fa718be	Added ice40 SB_CARRY support	2015-04-18 09:33:08 +02:00