Commit Graph

11 Commits

Author SHA1 Message Date
Patrick Urban 2c7ba0e752 gatemate: Enable register initialization 2023-02-15 17:29:01 +01:00
Patrick Urban 4cb27b1a3a gatemate: Ensure compatibility of LVDS ports with VHDL 2023-02-14 12:02:41 +01:00
gatecat 7c756c9959 gatemate: Add preliminary sim models for LUT tree structures
Signed-off-by: gatecat <gatecat@ds0.me>
2022-06-27 10:09:48 +01:00
Patrick Urban cb41209095 synth_gatemate Revert cascade A/B port mixup 2021-11-13 21:53:25 +01:00
Patrick Urban 0d871b6c49 synth_gatemate: Add block RAM cascade support
* add simulation model for block RAM cascade in 40K mode
* limit 20K_SDP and 40K_SDP to 40 and 80 bits (the only useful configurations)
2021-11-13 21:53:25 +01:00
Patrick Urban 74aee88e81 synth_gatemate: Remove specify blocks 2021-11-13 21:53:25 +01:00
Patrick Urban 4bee908ae8 synth_gatemate: Revise block RAM read modes and initialization
* enable mixed read-width / write-width ports in SDP mode
* fix NO_CHANGE and WRITE_THROUGH behavior during read access
* remove redundant zero-initialization
* set A/B_WE bit during map (gatemate_bramopt pass could be removed later)
* differentiate "upper" and "lower" initialization for cascade mode
2021-11-13 21:53:25 +01:00
Patrick Urban 6825de6343 synth_gatemate: Registers are uninitialized 2021-11-13 21:53:25 +01:00
Patrick Urban 0a72952d5f synth_gatemate: Apply review remarks
* remove unused techmap models in `map_regs.v`
* replace RAM initilization loops with 320-bit-writes
* add script to test targets in top-level Makefile
* remove `MAXWIDTH` parameter and treat both vector widths individually in `mult_map.v`
* iterate over all modules in `gatemate_bramopt` pass
2021-11-13 21:53:25 +01:00
Patrick Urban cfcc38582a synth_gatemate: Apply review remarks 2021-11-13 21:53:25 +01:00
Patrick Urban 240d289fff synth_gatemate: Initial implementation
Signed-off-by: Patrick Urban <patrick.urban@web.de>
2021-11-13 21:53:25 +01:00