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Towards Xilinx bram support

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Clifford Wolf 2015-01-06 14:26:51 +01:00
parent 9c7f47bbd5
commit 081e1a49f8
3 changed files with 42 additions and 14 deletions
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25
techlibs/xilinx/brams.v
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@ -19,8 +19,29 @@ module \$__XILINX_RAMB36_SDP72 (CLK2, CLK3, A1ADDR, A1DATA, B1ADDR, B1DATA, B1EN
wire [7:0] DIP, DOP;
wire [63:0] DI, DO;
assign A1DATA = { DOP[7], DO[63:56], DOP[6], DO[55:48], DOP[5], DO[47:40], DOP[4], DO[39:32],
DOP[3], DO[31:24], DOP[2], DO[23:16], DOP[1], DO[15: 8], DOP[0], DO[ 7: 0] };
wire [71:0] A1DATA_BUF;
reg [71:0] B1DATA_Q;
reg [7:0] transparent_cycle;
wire [1023:0] _TECHMAP_DO_ = "proc; opt -fast";
generate if (CLKPOL2)
always @(posedge CLK2) begin transparent_cycle <= TRANSP2 && A1ADDR == B1ADDR ? B1EN : 0; B1DATA_Q <= B1DATA; end
else
always @(negedge CLK2) begin transparent_cycle <= TRANSP2 && A1ADDR == B1ADDR ? B1EN : 0; B1DATA_Q <= B1DATA; end
endgenerate
assign A1DATA[ 8: 0] = transparent_cycle[0] ? B1DATA_Q[ 8: 0] : A1DATA_BUF[ 8: 0];
assign A1DATA[17: 9] = transparent_cycle[1] ? B1DATA_Q[17: 9] : A1DATA_BUF[17: 9];
assign A1DATA[26:18] = transparent_cycle[2] ? B1DATA_Q[26:18] : A1DATA_BUF[26:18];
assign A1DATA[35:27] = transparent_cycle[3] ? B1DATA_Q[35:27] : A1DATA_BUF[35:27];
assign A1DATA[44:36] = transparent_cycle[4] ? B1DATA_Q[44:36] : A1DATA_BUF[44:36];
assign A1DATA[53:45] = transparent_cycle[5] ? B1DATA_Q[53:45] : A1DATA_BUF[53:45];
assign A1DATA[62:54] = transparent_cycle[6] ? B1DATA_Q[62:54] : A1DATA_BUF[62:54];
assign A1DATA[71:63] = transparent_cycle[7] ? B1DATA_Q[71:63] : A1DATA_BUF[71:63];
assign A1DATA_BUF = { DOP[7], DO[63:56], DOP[6], DO[55:48], DOP[5], DO[47:40], DOP[4], DO[39:32],
DOP[3], DO[31:24], DOP[2], DO[23:16], DOP[1], DO[15: 8], DOP[0], DO[ 7: 0] };
assign { DIP[7], DI[63:56], DIP[6], DI[55:48], DIP[5], DI[47:40], DIP[4], DI[39:32],
DIP[3], DI[31:24], DIP[2], DI[23:16], DIP[1], DI[15: 8], DIP[0], DI[ 7: 0] } = B1DATA;