yosys/techlibs/gowin/brams_map.v

`define DEF_FUNCS \
	function [255:0] init_slice_x8; \
		input integer idx; \
		integer i; \
		for (i = 0; i < 32; i = i + 1) begin \
			init_slice_x8[i*8+:8] = INIT[(idx * 32 + i) * 9+:8]; \
		end \
	endfunction \
	function [287:0] init_slice_x9; \
		input integer idx; \
		init_slice_x9 = INIT[idx * 288+:288]; \
	endfunction \

`define x8_width(width) (width / 9 * 8 + width % 9)
`define x8_rd_data(data) {1'bx, data[31:24], 1'bx, data[23:16], 1'bx, data[15:8], 1'bx, data[7:0]}
`define x8_wr_data(data) {data[34:27], data[25:18], data[16:9], data[7:0]}
`define addrbe_always(width, addr) (width < 18 ? addr :  width == 18 ? {addr[13:4], 4'b0011} : {addr[13:5], 5'b01111})


`define INIT(func) \
	.INIT_RAM_00(func('h00)), \
	.INIT_RAM_01(func('h01)), \
	.INIT_RAM_02(func('h02)), \
	.INIT_RAM_03(func('h03)), \
	.INIT_RAM_04(func('h04)), \
	.INIT_RAM_05(func('h05)), \
	.INIT_RAM_06(func('h06)), \
	.INIT_RAM_07(func('h07)), \
	.INIT_RAM_08(func('h08)), \
	.INIT_RAM_09(func('h09)), \
	.INIT_RAM_0A(func('h0a)), \
	.INIT_RAM_0B(func('h0b)), \
	.INIT_RAM_0C(func('h0c)), \
	.INIT_RAM_0D(func('h0d)), \
	.INIT_RAM_0E(func('h0e)), \
	.INIT_RAM_0F(func('h0f)), \
	.INIT_RAM_10(func('h10)), \
	.INIT_RAM_11(func('h11)), \
	.INIT_RAM_12(func('h12)), \
	.INIT_RAM_13(func('h13)), \
	.INIT_RAM_14(func('h14)), \
	.INIT_RAM_15(func('h15)), \
	.INIT_RAM_16(func('h16)), \
	.INIT_RAM_17(func('h17)), \
	.INIT_RAM_18(func('h18)), \
	.INIT_RAM_19(func('h19)), \
	.INIT_RAM_1A(func('h1a)), \
	.INIT_RAM_1B(func('h1b)), \
	.INIT_RAM_1C(func('h1c)), \
	.INIT_RAM_1D(func('h1d)), \
	.INIT_RAM_1E(func('h1e)), \
	.INIT_RAM_1F(func('h1f)), \
	.INIT_RAM_20(func('h20)), \
	.INIT_RAM_21(func('h21)), \
	.INIT_RAM_22(func('h22)), \
	.INIT_RAM_23(func('h23)), \
	.INIT_RAM_24(func('h24)), \
	.INIT_RAM_25(func('h25)), \
	.INIT_RAM_26(func('h26)), \
	.INIT_RAM_27(func('h27)), \
	.INIT_RAM_28(func('h28)), \
	.INIT_RAM_29(func('h29)), \
	.INIT_RAM_2A(func('h2a)), \
	.INIT_RAM_2B(func('h2b)), \
	.INIT_RAM_2C(func('h2c)), \
	.INIT_RAM_2D(func('h2d)), \
	.INIT_RAM_2E(func('h2e)), \
	.INIT_RAM_2F(func('h2f)), \
	.INIT_RAM_30(func('h30)), \
	.INIT_RAM_31(func('h31)), \
	.INIT_RAM_32(func('h32)), \
	.INIT_RAM_33(func('h33)), \
	.INIT_RAM_34(func('h34)), \
	.INIT_RAM_35(func('h35)), \
	.INIT_RAM_36(func('h36)), \
	.INIT_RAM_37(func('h37)), \
	.INIT_RAM_38(func('h38)), \
	.INIT_RAM_39(func('h39)), \
	.INIT_RAM_3A(func('h3a)), \
	.INIT_RAM_3B(func('h3b)), \
	.INIT_RAM_3C(func('h3c)), \
	.INIT_RAM_3D(func('h3d)), \
	.INIT_RAM_3E(func('h3e)), \
	.INIT_RAM_3F(func('h3f)),

module $__GOWIN_SP_ (...);

parameter INIT = 0;
parameter OPTION_RESET_MODE = "SYNC";

parameter PORT_A_WIDTH = 36;
parameter PORT_A_OPTION_WRITE_MODE = 0;

input PORT_A_CLK;
input PORT_A_CLK_EN;
input PORT_A_WR_EN;
input PORT_A_RD_SRST;
input PORT_A_RD_ARST;
input [13:0] PORT_A_ADDR;
input [PORT_A_WIDTH-1:0] PORT_A_WR_DATA;
output [PORT_A_WIDTH-1:0] PORT_A_RD_DATA;

`DEF_FUNCS

wire RST = OPTION_RESET_MODE == "SYNC" ? PORT_A_RD_SRST : PORT_A_RD_ARST;
wire [13:0] AD = `addrbe_always(PORT_A_WIDTH, PORT_A_ADDR);

generate

if (PORT_A_WIDTH < 9) begin

	wire [31:0] DI = `x8_wr_data(PORT_A_WR_DATA);
	wire [31:0] DO;

	assign PORT_A_RD_DATA = `x8_rd_data(DO);

	SP #(
		`INIT(init_slice_x8)
		.READ_MODE(1'b0),
		.WRITE_MODE(PORT_A_OPTION_WRITE_MODE),
		.BIT_WIDTH(`x8_width(PORT_A_WIDTH)),
		.BLK_SEL(3'b000),
		.RESET_MODE(OPTION_RESET_MODE),
	) _TECHMAP_REPLACE_ (
		.BLKSEL(3'b000),
		.CLK(PORT_A_CLK),
		.CE(PORT_A_CLK_EN),
		.WRE(PORT_A_WR_EN),
		.RESET(RST),
		.OCE(1'b1),
		.AD(AD),
		.DI(DI),
		.DO(DO),
	);

end else begin

	wire [35:0] DI = PORT_A_WR_DATA;
	wire [35:0] DO;

	assign PORT_A_RD_DATA = DO;

	SPX9 #(
		`INIT(init_slice_x9)
		.READ_MODE(1'b0),
		.WRITE_MODE(PORT_A_OPTION_WRITE_MODE),
		.BIT_WIDTH(PORT_A_WIDTH),
		.BLK_SEL(3'b000),
		.RESET_MODE(OPTION_RESET_MODE),
	) _TECHMAP_REPLACE_ (
		.BLKSEL(3'b000),
		.CLK(PORT_A_CLK),
		.CE(PORT_A_CLK_EN),
		.WRE(PORT_A_WR_EN),
		.RESET(RST),
		.OCE(1'b1),
		.AD(AD),
		.DI(DI),
		.DO(DO),
	);

end

endgenerate

endmodule


module $__GOWIN_DP_ (...);

parameter INIT = 0;
parameter OPTION_RESET_MODE = "SYNC";

parameter PORT_A_WIDTH = 18;
parameter PORT_A_OPTION_WRITE_MODE = 0;

parameter PORT_B_WIDTH = 18;
parameter PORT_B_OPTION_WRITE_MODE = 0;

input PORT_A_CLK;
input PORT_A_CLK_EN;
input PORT_A_WR_EN;
input PORT_A_RD_SRST;
input PORT_A_RD_ARST;
input [13:0] PORT_A_ADDR;
input [PORT_A_WIDTH-1:0] PORT_A_WR_DATA;
output [PORT_A_WIDTH-1:0] PORT_A_RD_DATA;

input PORT_B_CLK;
input PORT_B_CLK_EN;
input PORT_B_WR_EN;
input PORT_B_RD_SRST;
input PORT_B_RD_ARST;
input [13:0] PORT_B_ADDR;
input [PORT_A_WIDTH-1:0] PORT_B_WR_DATA;
output [PORT_A_WIDTH-1:0] PORT_B_RD_DATA;

`DEF_FUNCS

wire RSTA = OPTION_RESET_MODE == "SYNC" ? PORT_A_RD_SRST : PORT_A_RD_ARST;
wire RSTB = OPTION_RESET_MODE == "SYNC" ? PORT_B_RD_SRST : PORT_B_RD_ARST;
wire [13:0] ADA = `addrbe_always(PORT_A_WIDTH, PORT_A_ADDR);
wire [13:0] ADB = `addrbe_always(PORT_B_WIDTH, PORT_B_ADDR);

generate

if (PORT_A_WIDTH < 9 || PORT_B_WIDTH < 9) begin

	wire [15:0] DIA = `x8_wr_data(PORT_A_WR_DATA);
	wire [15:0] DIB = `x8_wr_data(PORT_B_WR_DATA);
	wire [15:0] DOA;
	wire [15:0] DOB;

	assign PORT_A_RD_DATA = `x8_rd_data(DOA);
	assign PORT_B_RD_DATA = `x8_rd_data(DOB);

	DPB #(
		`INIT(init_slice_x8)
		.READ_MODE0(1'b0),
		.READ_MODE1(1'b0),
		.WRITE_MODE0(PORT_A_OPTION_WRITE_MODE),
		.WRITE_MODE1(PORT_B_OPTION_WRITE_MODE),
		.BIT_WIDTH_0(`x8_width(PORT_A_WIDTH)),
		.BIT_WIDTH_1(`x8_width(PORT_B_WIDTH)),
		.BLK_SEL_0(3'b000),
		.BLK_SEL_1(3'b000),
		.RESET_MODE(OPTION_RESET_MODE),
	) _TECHMAP_REPLACE_ (
		.BLKSELA(3'b000),
		.BLKSELB(3'b000),

		.CLKA(PORT_A_CLK),
		.CEA(PORT_A_CLK_EN),
		.WREA(PORT_A_WR_EN),
		.RESETA(RSTA),
		.OCEA(1'b1),
		.ADA(ADA),
		.DIA(DIA),
		.DOA(DOA),

		.CLKB(PORT_B_CLK),
		.CEB(PORT_B_CLK_EN),
		.WREB(PORT_B_WR_EN),
		.RESETB(RSTB),
		.OCEB(1'b1),
		.ADB(ADB),
		.DIB(DIB),
		.DOB(DOB),
	);

end else begin

	wire [17:0] DIA = PORT_A_WR_DATA;
	wire [17:0] DIB = PORT_B_WR_DATA;
	wire [17:0] DOA;
	wire [17:0] DOB;

	assign PORT_A_RD_DATA = DOA;
	assign PORT_B_RD_DATA = DOB;

	DPX9B #(
		`INIT(init_slice_x9)
		.READ_MODE0(1'b0),
		.READ_MODE1(1'b0),
		.WRITE_MODE0(PORT_A_OPTION_WRITE_MODE),
		.WRITE_MODE1(PORT_B_OPTION_WRITE_MODE),
		.BIT_WIDTH_0(PORT_A_WIDTH),
		.BIT_WIDTH_1(PORT_B_WIDTH),
		.BLK_SEL_0(3'b000),
		.BLK_SEL_1(3'b000),
		.RESET_MODE(OPTION_RESET_MODE),
	) _TECHMAP_REPLACE_ (
		.BLKSELA(3'b000),
		.BLKSELB(3'b000),

		.CLKA(PORT_A_CLK),
		.CEA(PORT_A_CLK_EN),
		.WREA(PORT_A_WR_EN),
		.RESETA(RSTA),
		.OCEA(1'b1),
		.ADA(ADA),
		.DIA(DIA),
		.DOA(DOA),

		.CLKB(PORT_B_CLK),
		.CEB(PORT_B_CLK_EN),
		.WREB(PORT_B_WR_EN),
		.RESETB(RSTB),
		.OCEB(1'b1),
		.ADB(ADB),
		.DIB(DIB),
		.DOB(DOB),
	);

end

endgenerate

endmodule


module $__GOWIN_SDP_ (...);

parameter INIT = 0;
parameter OPTION_RESET_MODE = "SYNC";

parameter PORT_R_WIDTH = 18;
parameter PORT_W_WIDTH = 18;

input PORT_R_CLK;
input PORT_R_CLK_EN;
input PORT_R_RD_SRST;
input PORT_R_RD_ARST;
input [13:0] PORT_R_ADDR;
output [PORT_R_WIDTH-1:0] PORT_R_RD_DATA;

input PORT_W_CLK;
input PORT_W_CLK_EN;
input PORT_W_WR_EN;
input [13:0] PORT_W_ADDR;
input [PORT_W_WIDTH-1:0] PORT_W_WR_DATA;

`DEF_FUNCS

wire RST = OPTION_RESET_MODE == "SYNC" ? PORT_R_RD_SRST : PORT_R_RD_ARST;
wire [13:0] ADW = `addrbe_always(PORT_W_WIDTH, PORT_W_ADDR);

generate

if (PORT_W_WIDTH < 9 || PORT_R_WIDTH < 9) begin

	wire [31:0] DI = `x8_wr_data(PORT_W_WR_DATA);
	wire [31:0] DO;

	assign PORT_R_RD_DATA = `x8_rd_data(DO);

	SDPB #(
		`INIT(init_slice_x8)
		.READ_MODE(1'b0),
		.BIT_WIDTH_0(`x8_width(PORT_W_WIDTH)),
		.BIT_WIDTH_1(`x8_width(PORT_R_WIDTH)),
		.BLK_SEL_0(3'b000),
		.BLK_SEL_1(3'b000),
		.RESET_MODE(OPTION_RESET_MODE),
	) _TECHMAP_REPLACE_ (
		.BLKSELA(3'b000),
		.BLKSELB(3'b000),

		.CLKA(PORT_W_CLK),
		.CEA(PORT_W_CLK_EN),
		.RESETA(1'b0),
		.ADA(ADW),
		.DI(DI),

		.CLKB(PORT_R_CLK),
		.CEB(PORT_R_CLK_EN),
		.RESETB(RST),
		.OCE(1'b1),
		.ADB(PORT_R_ADDR),
		.DO(DO),
	);

end else begin

	wire [35:0] DI = PORT_W_WR_DATA;
	wire [35:0] DO;

	assign PORT_R_RD_DATA = DO;

	SDPX9B #(
		`INIT(init_slice_x9)
		.READ_MODE(1'b0),
		.BIT_WIDTH_0(PORT_W_WIDTH),
		.BIT_WIDTH_1(PORT_R_WIDTH),
		.BLK_SEL_0(3'b000),
		.BLK_SEL_1(3'b000),
		.RESET_MODE(OPTION_RESET_MODE),
	) _TECHMAP_REPLACE_ (
		.BLKSELA(3'b000),
		.BLKSELB(3'b000),

		.CLKA(PORT_W_CLK),
		.CEA(PORT_W_CLK_EN),
		.RESETA(1'b0),
		.ADA(ADW),
		.DI(DI),

		.CLKB(PORT_R_CLK),
		.CEB(PORT_R_CLK_EN),
		.RESETB(RST),
		.OCE(1'b1),
		.ADB(PORT_R_ADDR),
		.DO(DO),
	);

end

endgenerate

endmodule