yosys/tests/simple/macros.v

238 lines
3.6 KiB
Coq
Raw Normal View History

2013-12-18 06:41:36 -06:00
module test_def(a, y);
2013-12-18 06:21:02 -06:00
`define MSB_LSB_SEP :
`define get_msb(off, len) ((off)+(len)-1)
`define get_lsb(off, len) (off)
`define sel_bits(offset, len) `get_msb(offset, len) `MSB_LSB_SEP `get_lsb(offset, len)
2013-12-18 06:41:36 -06:00
2013-12-18 06:21:02 -06:00
input [31:0] a;
output [7:0] y;
2013-12-18 06:41:36 -06:00
2013-12-18 06:21:02 -06:00
assign y = a[`sel_bits(16, 8)];
2013-12-18 06:41:36 -06:00
endmodule
// ---------------------------------------------------
module test_ifdef(a, y);
input [2:0] a;
output reg [31:0] y;
always @* begin
y = 0;
`undef X
`ifdef X
y = y + 42;
`else
`undef A
`undef B
`ifdef A
y = (y << 1) | a[0];
`elsif B
y = (y << 1) | a[1];
`else
y = (y << 1) | a[2];
`endif
`undef A
`define B
`ifdef A
y = (y << 1) | a[0];
`elsif B
y = (y << 1) | a[1];
`else
y = (y << 1) | a[2];
`endif
`define A
`undef B
`ifdef A
y = (y << 1) | a[0];
`elsif B
y = (y << 1) | a[1];
`else
y = (y << 1) | a[2];
`endif
`define A
`define B
`ifdef A
y = (y << 1) | a[0];
`elsif B
y = (y << 1) | a[1];
`else
y = (y << 1) | a[2];
`endif
// ------------------------------------
`undef A
`undef B
`ifndef A
y = (y << 1) | a[0];
`elsif B
y = (y << 1) | a[1];
`else
y = (y << 1) | a[2];
`endif
`undef A
`define B
`ifndef A
y = (y << 1) | a[0];
`elsif B
y = (y << 1) | a[1];
`else
y = (y << 1) | a[2];
`endif
`define A
`undef B
`ifndef A
y = (y << 1) | a[0];
`elsif B
y = (y << 1) | a[1];
`else
y = (y << 1) | a[2];
`endif
`define A
`define B
`ifndef A
y = (y << 1) | a[0];
`elsif B
y = (y << 1) | a[1];
`else
y = (y << 1) | a[2];
`endif
// ------------------------------------
`undef A
`ifdef A
y = (y << 1) | a[0];
`else
y = (y << 1) | a[2];
`endif
`define A
`ifdef A
y = (y << 1) | a[0];
`else
y = (y << 1) | a[2];
`endif
// ------------------------------------
`undef A
`ifndef A
y = (y << 1) | a[0];
`else
y = (y << 1) | a[2];
`endif
`define A
`ifndef A
y = (y << 1) | a[0];
`else
y = (y << 1) | a[2];
`endif
`endif
`define X
`ifdef X
`undef A
`undef B
`ifdef A
y = (y << 1) | a[0];
`elsif B
y = (y << 1) | a[1];
`else
y = (y << 1) | a[2];
`endif
`undef A
`define B
`ifdef A
y = (y << 1) | a[0];
`elsif B
y = (y << 1) | a[1];
`else
y = (y << 1) | a[2];
`endif
`define A
`undef B
`ifdef A
y = (y << 1) | a[0];
`elsif B
y = (y << 1) | a[1];
`else
y = (y << 1) | a[2];
`endif
`define A
`define B
`ifdef A
y = (y << 1) | a[0];
`elsif B
y = (y << 1) | a[1];
`else
y = (y << 1) | a[2];
`endif
// ------------------------------------
`undef A
`undef B
`ifndef A
y = (y << 1) | a[0];
`elsif B
y = (y << 1) | a[1];
`else
y = (y << 1) | a[2];
`endif
`undef A
`define B
`ifndef A
y = (y << 1) | a[0];
`elsif B
y = (y << 1) | a[1];
`else
y = (y << 1) | a[2];
`endif
`define A
`undef B
`ifndef A
y = (y << 1) | a[0];
`elsif B
y = (y << 1) | a[1];
`else
y = (y << 1) | a[2];
`endif
`define A
`define B
`ifndef A
y = (y << 1) | a[0];
`elsif B
y = (y << 1) | a[1];
`else
y = (y << 1) | a[2];
`endif
// ------------------------------------
`undef A
`ifdef A
y = (y << 1) | a[0];
`else
y = (y << 1) | a[2];
`endif
`define A
`ifdef A
y = (y << 1) | a[0];
`else
y = (y << 1) | a[2];
`endif
// ------------------------------------
`undef A
`ifndef A
y = (y << 1) | a[0];
`else
y = (y << 1) | a[2];
`endif
`define A
`ifndef A
y = (y << 1) | a[0];
`else
y = (y << 1) | a[2];
`endif
`else
y = y + 42;
`endif
end
2013-12-18 06:21:02 -06:00
endmodule