yosys

Commit Graph

Author	SHA1	Message	Date
Marcin Kościelnicki	7a9081440c	xilinx: Add simulation models for MULT18X18* and DSP48A. This adds simulation models for the following primitives: - MULT18X18 and MULT18X18S (Virtex 2, Spartan 3) - MULT18X18SIO (Spartan 3E, Spartan 3A) - DSP48A (Spartan 3A DSP) — implemented in terms of DSP48A1 - DSP48A1 (Spartan 6)	2019-11-19 01:00:58 +01:00
Marcin Kościelnicki	c4bd318e76	synth_xilinx: Merge blackbox primitive libraries. First, there are no longer separate cell libraries for xc6s/xc7/xcu. Manually instantiating a primitive for a "wrong" family will result in yosys passing it straight through to the output, and it will be either upgraded or rejected by the P&R tool. Second, the blackbox library is expanded to cover many more families: everything from Spartan 3 up is included. Primitives for Virtex and Virtex 2 are listed in the Python file as well if we ever want to include them, but that would require having two different ISE versions (10.1 and 14.7) available when running cells_xtra.py, and so is probably more trouble than it's worth. Third, the blockram blackboxes are no longer in separate files — there is no practical reason to do so (from synthesis PoV, they are no different from any other cells_xtra blackbox), and they needlessly complicated the flow (among other things, merging them allows the user to use eg. Series 7 primitives and have them auto-upgraded to Ultrascale). Last, since xc5v logic synthesis appears to work reasonably well (the only major problem is lack of blockram inference support), xc5v is now an accepted setting for the -family option.	2019-11-06 15:11:27 +01:00
David Shah	6769d31ddb	xilinx: Add support for UltraScale[+] BRAM mapping Signed-off-by: David Shah <dave@ds0.me>	2019-10-23 11:47:37 +01:00
Marcin Kościelnicki	526fe4cb89	xilinx: Add simulation model for IBUFG.	2019-10-10 13:16:03 +02:00
Eddie Hung	9c23811839	Remove DSP48E1 from *_cells_xtra.v	2019-10-04 17:26:42 -07:00
Eddie Hung	5b5756b91e	Add LDCE/LDPE sim library, remove from *cells_xtra.{v,py}	2019-09-30 12:52:43 +02:00
Marcin Kościelnicki	13fa873f11	Use extractinv for synth_xilinx -ise	2019-09-19 04:02:48 +02:00
Marcin Kościelnicki	09ac36da60	xilinx: Make blackbox library family-dependent. Fixes #1246.	2019-09-15 13:37:24 +02:00
Marcin Kościelnicki	3c75a72feb	move attributes to wires	2019-08-13 19:36:59 +00:00

9 Commits