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added altera fpu modules

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This commit is contained in:
Blaise Tine
2020-08-05 15:53:59 -07:00
parent d8bdaa2b4e
commit ffd9515881
48 changed files with 8888 additions and 459 deletions
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32
hw/rtl/fp_cores/VX_fpnew.v
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@@ -83,13 +83,13 @@ module VX_fpnew #(
reg [FOP_BITS-1:0] fpu_op;
reg [`FRM_BITS-1:0] fpu_rnd;
reg fpu_op_mod;
reg fflags_en, fflags_en_o;
reg fpu_has_fflags, fpu_has_fflags_o;
always @(*) begin
fpu_op = fpnew_pkg::SGNJ;
fpu_rnd = frm;
fpu_op_mod = 0;
fflags_en = 1;
fpu_has_fflags = 1;
fpu_operands[0] = dataa;
fpu_operands[1] = datab;
fpu_operands[2] = datac;
@@ -112,18 +112,18 @@ module VX_fpnew #(
`FPU_MSUB: begin fpu_op = fpnew_pkg::FMADD; fpu_op_mod = 1; end
`FPU_NMSUB: begin fpu_op = fpnew_pkg::FNMSUB; end
`FPU_NMADD: begin fpu_op = fpnew_pkg::FNMSUB; fpu_op_mod = 1; end
`FPU_SGNJ: begin fpu_op = fpnew_pkg::SGNJ; fpu_rnd = `FRM_RNE; fflags_en = 0; end
`FPU_SGNJN: begin fpu_op = fpnew_pkg::SGNJ; fpu_rnd = `FRM_RTZ; fflags_en = 0; end
`FPU_SGNJX: begin fpu_op = fpnew_pkg::SGNJ; fpu_rnd = `FRM_RDN; fflags_en = 0; end
`FPU_SGNJ: begin fpu_op = fpnew_pkg::SGNJ; fpu_rnd = `FRM_RNE; fpu_has_fflags = 0; end
`FPU_SGNJN: begin fpu_op = fpnew_pkg::SGNJ; fpu_rnd = `FRM_RTZ; fpu_has_fflags = 0; end
`FPU_SGNJX: begin fpu_op = fpnew_pkg::SGNJ; fpu_rnd = `FRM_RDN; fpu_has_fflags = 0; end
`FPU_MIN: begin fpu_op = fpnew_pkg::MINMAX; fpu_rnd = `FRM_RNE; end
`FPU_MAX: begin fpu_op = fpnew_pkg::MINMAX; fpu_rnd = `FRM_RTZ; end
`FPU_CVTWS: begin fpu_op = fpnew_pkg::F2I; end
`FPU_CVTWUS:begin fpu_op = fpnew_pkg::F2I; fpu_op_mod = 1; end
`FPU_CVTSW: begin fpu_op = fpnew_pkg::I2F; end
`FPU_CVTSWU:begin fpu_op = fpnew_pkg::I2F; fpu_op_mod = 1; end
`FPU_MVXW: begin fpu_op = fpnew_pkg::SGNJ; fpu_rnd = `FRM_RUP; fflags_en = 0; end
`FPU_MVWX: begin fpu_op = fpnew_pkg::SGNJ; fpu_rnd = `FRM_RUP; fflags_en = 0; end
`FPU_CLASS: begin fpu_op = fpnew_pkg::CLASSIFY; fflags_en = 0; end
`FPU_MVXW: begin fpu_op = fpnew_pkg::SGNJ; fpu_rnd = `FRM_RUP; fpu_has_fflags = 0; end
`FPU_MVWX: begin fpu_op = fpnew_pkg::SGNJ; fpu_rnd = `FRM_RUP; fpu_has_fflags = 0; end
`FPU_CLASS: begin fpu_op = fpnew_pkg::CLASSIFY; fpu_has_fflags = 0; end
`FPU_CMP: begin fpu_op = fpnew_pkg::CMP; end
default:;
endcase
@@ -150,13 +150,13 @@ module VX_fpnew #(
.dst_fmt_i (fpnew_pkg::fp_format_e'(fpu_dst_fmt)),
.int_fmt_i (fpnew_pkg::int_format_e'(fpu_int_fmt)),
.vectorial_op_i (1'b0),
.tag_i ({fpu_in_tag, fflags_en, is_class_op_i}),
.tag_i ({fpu_in_tag, fpu_has_fflags, is_class_op_i}),
.in_valid_i (fpu_in_valid),
.in_ready_o (fpu_in_ready),
.flush_i (reset),
.result_o (fpu_result[0]),
.status_o (fpu_status[0]),
.tag_o ({fpu_out_tag, fflags_en_o, is_class_op_o}),
.tag_o ({fpu_out_tag, fpu_has_fflags_o, is_class_op_o}),
.out_valid_o (fpu_out_valid),
.out_ready_i (fpu_out_ready),
`UNUSED_PIN (busy_o)
@@ -201,14 +201,14 @@ module VX_fpnew #(
assign result = fpu_result;
assign has_fflags = fflags_en_o;
assign has_fflags = fpu_has_fflags_o;
for (i = 0; i < `NUM_THREADS; i++) begin
assign fflags[i][0] = fpu_status[i].NX;
assign fflags[i][1] = fpu_status[i].UF;
assign fflags[i][2] = fpu_status[i].OF;
assign fflags[i][3] = fpu_status[i].DZ;
assign fflags[i][4] = fpu_status[i].NV;
assign fflags[i][`FFG_NX] = fpu_status[i].NX;
assign fflags[i][`FFG_UF] = fpu_status[i].UF;
assign fflags[i][`FFG_OF] = fpu_status[i].OF;
assign fflags[i][`FFG_DZ] = fpu_status[i].DZ;
assign fflags[i][`FFG_NV] = fpu_status[i].NV;
end
assign out_valid = fpu_out_valid;