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| author | Clifford Wolf <clifford@clifford.at> | 2019-02-28 14:46:56 -0800 |
|---|---|---|
| committer | GitHub <noreply@github.com> | 2019-02-28 14:46:56 -0800 |
| commit | 41e5028f982b7929051d6d6ccded09cca0f2292e (patch) | |
| tree | 515565d8b22a97109c5a0572df4f32976ff2df4a /techlibs/ecp5/cells_sim.v | |
| parent | 6d143c9a018e5ba352a06785afeba8d50178a835 (diff) | |
| parent | fa2f595cfa240b86edb26e859449c1c54eaf49ef (diff) | |
| download | yosys-41e5028f982b7929051d6d6ccded09cca0f2292e.tar.gz yosys-41e5028f982b7929051d6d6ccded09cca0f2292e.tar.bz2 yosys-41e5028f982b7929051d6d6ccded09cca0f2292e.zip | |
Merge pull request #794 from daveshah1/ecp5improve
ECP5 Improvements
Diffstat (limited to 'techlibs/ecp5/cells_sim.v')
| -rw-r--r-- | techlibs/ecp5/cells_sim.v | 40 |
1 files changed, 33 insertions, 7 deletions
diff --git a/techlibs/ecp5/cells_sim.v b/techlibs/ecp5/cells_sim.v index f27540bd7..8320ee70a 100644 --- a/techlibs/ecp5/cells_sim.v +++ b/techlibs/ecp5/cells_sim.v @@ -203,13 +203,14 @@ endmodule // --------------------------------------- -module TRELLIS_FF(input CLK, LSR, CE, DI, output reg Q); +module TRELLIS_FF(input CLK, LSR, CE, DI, M, output reg Q); parameter GSR = "ENABLED"; parameter [127:0] CEMUX = "1"; parameter CLKMUX = "CLK"; parameter LSRMUX = "LSR"; parameter SRMODE = "LSR_OVER_CE"; parameter REGSET = "RESET"; + parameter [127:0] LSRMODE = "LSR"; reg muxce; always @(*) @@ -222,8 +223,12 @@ module TRELLIS_FF(input CLK, LSR, CE, DI, output reg Q); wire muxlsr = (LSRMUX == "INV") ? ~LSR : LSR; wire muxclk = (CLKMUX == "INV") ? ~CLK : CLK; - - localparam srval = (REGSET == "SET") ? 1'b1 : 1'b0; + generate + if (LSRMODE == "PRLD") + wire srval = M; + else + localparam srval = (REGSET == "SET") ? 1'b1 : 1'b0; + endgenerate initial Q = srval; @@ -339,6 +344,8 @@ module TRELLIS_SLICE( parameter REG1_SD = "0"; parameter REG0_REGSET = "RESET"; parameter REG1_REGSET = "RESET"; + parameter REG0_LSRMODE = "LSR"; + parameter REG1_LSRMODE = "LSR"; parameter [127:0] CCU2_INJECT1_0 = "NO"; parameter [127:0] CCU2_INJECT1_1 = "NO"; parameter WREMUX = "WRE"; @@ -428,10 +435,11 @@ module TRELLIS_SLICE( .CLKMUX(CLKMUX), .LSRMUX(LSRMUX), .SRMODE(SRMODE), - .REGSET(REG0_REGSET) + .REGSET(REG0_REGSET), + .LSRMODE(REG0_LSRMODE) ) ff_0 ( .CLK(CLK), .LSR(LSR), .CE(CE), - .DI(muxdi0), + .DI(muxdi0), .M(M0), .Q(Q0) ); TRELLIS_FF #( @@ -440,10 +448,11 @@ module TRELLIS_SLICE( .CLKMUX(CLKMUX), .LSRMUX(LSRMUX), .SRMODE(SRMODE), - .REGSET(REG1_REGSET) + .REGSET(REG1_REGSET), + .LSRMODE(REG1_LSRMODE) ) ff_1 ( .CLK(CLK), .LSR(LSR), .CE(CE), - .DI(muxdi1), + .DI(muxdi1), .M(M1), .Q(Q1) ); endmodule @@ -547,3 +556,20 @@ module DP16KD( parameter INITVAL_3E = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; parameter INITVAL_3F = 320'h00000000000000000000000000000000000000000000000000000000000000000000000000000000; endmodule + +// For Diamond compatibility, FIXME: add all Diamond flipflop mappings +module FD1S3BX(input PD, D, CK, output Q); + TRELLIS_FF #( + .GSR("DISABLED"), + .CEMUX("1"), + .CLKMUX("CLK"), + .LSRMUX("LSR"), + .REGSET("SET"), + .SRMODE("ASYNC") + ) tff_i ( + .CLK(CK), + .LSR(PD), + .DI(D), + .Q(Q) + ); +endmodule |