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Diffstat (limited to 'tests/memlib/memlib_wide_sp.v')
| -rw-r--r-- | tests/memlib/memlib_wide_sp.v | 54 |
1 files changed, 54 insertions, 0 deletions
diff --git a/tests/memlib/memlib_wide_sp.v b/tests/memlib/memlib_wide_sp.v new file mode 100644 index 000000000..920a3339a --- /dev/null +++ b/tests/memlib/memlib_wide_sp.v @@ -0,0 +1,54 @@ +module RAM_WIDE_SP #( + parameter [79:0] INIT = 80'hx, + parameter PORT_A_RD_WIDTH = 1, + parameter PORT_A_WR_WIDTH = 1, + parameter PORT_A_WIDTH = 1, + parameter OPTION_WIDTH_MIX = 0, + parameter PORT_A_WR_EN_WIDTH = 1, + parameter PORT_A_RD_SRST_VALUE = 16'hx, + parameter RD_WIDTH = OPTION_WIDTH_MIX ? PORT_A_RD_WIDTH : PORT_A_WIDTH, + parameter WR_WIDTH = OPTION_WIDTH_MIX ? PORT_A_WR_WIDTH : PORT_A_WIDTH +) ( + input PORT_A_CLK, + input PORT_A_RD_EN, + input PORT_A_RD_SRST, + input [5:0] PORT_A_ADDR, + output reg [RD_WIDTH-1:0] PORT_A_RD_DATA, + input [PORT_A_WR_EN_WIDTH-1:0] PORT_A_WR_EN, + input [WR_WIDTH-1:0] PORT_A_WR_DATA +); + +reg [79:0] mem; + +initial mem = INIT; + +always @(posedge PORT_A_CLK) + if (PORT_A_RD_SRST) + PORT_A_RD_DATA <= PORT_A_RD_SRST_VALUE; + else if (PORT_A_RD_EN) + case (RD_WIDTH) + 1: PORT_A_RD_DATA <= mem[PORT_A_ADDR[5:2] * 5 + PORT_A_ADDR[1:0]+:1]; + 2: PORT_A_RD_DATA <= mem[PORT_A_ADDR[5:2] * 5 + PORT_A_ADDR[1] * 2+:2]; + 5: PORT_A_RD_DATA <= mem[PORT_A_ADDR[5:2] * 5+:5]; + 10: PORT_A_RD_DATA <= mem[PORT_A_ADDR[5:3] * 10+:10]; + 20: PORT_A_RD_DATA <= mem[PORT_A_ADDR[5:4] * 20+:20]; + endcase + +always @(posedge PORT_A_CLK) + case (WR_WIDTH) + 1: if (PORT_A_WR_EN) mem[PORT_A_ADDR[5:2] * 5 + PORT_A_ADDR[1:0]+:1] <= PORT_A_WR_DATA; + 2: if (PORT_A_WR_EN) mem[PORT_A_ADDR[5:2] * 5 + PORT_A_ADDR[1] * 2+:2] <= PORT_A_WR_DATA; + 5: if (PORT_A_WR_EN) mem[PORT_A_ADDR[5:2] * 5+:5] <= PORT_A_WR_DATA; + 10: begin + if (PORT_A_WR_EN[0]) mem[PORT_A_ADDR[5:3] * 10+:5] <= PORT_A_WR_DATA[4:0]; + if (PORT_A_WR_EN[1]) mem[PORT_A_ADDR[5:3] * 10 + 5+:5] <= PORT_A_WR_DATA[9:5]; + end + 20: begin + if (PORT_A_WR_EN[0]) mem[PORT_A_ADDR[5:4] * 20+:5] <= PORT_A_WR_DATA[4:0]; + if (PORT_A_WR_EN[1]) mem[PORT_A_ADDR[5:4] * 20 + 5+:5] <= PORT_A_WR_DATA[9:5]; + if (PORT_A_WR_EN[2]) mem[PORT_A_ADDR[5:4] * 20 + 10+:5] <= PORT_A_WR_DATA[14:10]; + if (PORT_A_WR_EN[3]) mem[PORT_A_ADDR[5:4] * 20 + 15+:5] <= PORT_A_WR_DATA[19:15]; + end + endcase + +endmodule |