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import fp_wire::*;
module fp_exe (
input fp_exe_in_type fp_exe_i,
output fp_exe_out_type fp_exe_o,
input fp_ext_out_type fp_ext1_o,
output fp_ext_in_type fp_ext1_i,
input fp_ext_out_type fp_ext2_o,
output fp_ext_in_type fp_ext2_i,
input fp_ext_out_type fp_ext3_o,
output fp_ext_in_type fp_ext3_i,
input fp_cmp_out_type fp_cmp_o,
output fp_cmp_in_type fp_cmp_i,
input fp_max_out_type fp_max_o,
output fp_max_in_type fp_max_i,
input fp_sgnj_out_type fp_sgnj_o,
output fp_sgnj_in_type fp_sgnj_i,
input fp_cvt_f2f_out_type fp_cvt_f2f_o,
output fp_cvt_f2f_in_type fp_cvt_f2f_i,
input fp_cvt_f2i_out_type fp_cvt_f2i_o,
output fp_cvt_f2i_in_type fp_cvt_f2i_i,
input fp_cvt_i2f_out_type fp_cvt_i2f_o,
output fp_cvt_i2f_in_type fp_cvt_i2f_i,
input fp_fma_out_type fp_fma_o,
output fp_fma_in_type fp_fma_i,
input fp_fdiv_out_type fp_fdiv_o,
output fp_fdiv_in_type fp_fdiv_i,
input fp_rnd_out_type fp_rnd_o,
output fp_rnd_in_type fp_rnd_i
);
logic [63:0] data1;
logic [63:0] data2;
logic [63:0] data3;
fp_operation_type op;
logic [1:0] fmt;
logic [2:0] rm;
logic [63:0] result;
logic [4:0] flags;
logic ready;
logic [1:0] fmt_ext;
logic [64:0] extend1;
logic [64:0] extend2;
logic [64:0] extend3;
logic [9:0] class1;
logic [9:0] class2;
logic [9:0] class3;
fp_rnd_in_type fp_rnd;
always_comb begin
if (fp_exe_i.enable) begin
data1 = fp_exe_i.data1;
data2 = fp_exe_i.data2;
data3 = fp_exe_i.data3;
op = fp_exe_i.op;
fmt = fp_exe_i.fmt;
rm = fp_exe_i.rm;
end else begin
data1 = 0;
data2 = 0;
data3 = 0;
op = 0;
fmt = 0;
rm = 0;
end
result = 0;
flags = 0;
ready = fp_exe_i.enable;
if (op.fcvt_f2f) begin
fmt_ext = fp_exe_i.op.fcvt_op;
end else begin
fmt_ext = fp_exe_i.fmt;
end
fp_ext1_i.data = data1;
fp_ext1_i.fmt = fmt_ext;
fp_ext2_i.data = data2;
fp_ext2_i.fmt = fmt_ext;
fp_ext3_i.data = data3;
fp_ext3_i.fmt = fmt_ext;
extend1 = fp_ext1_o.result;
extend2 = fp_ext2_o.result;
extend3 = fp_ext3_o.result;
class2 = fp_ext2_o.classification;
class1 = fp_ext1_o.classification;
class3 = fp_ext3_o.classification;
fp_cmp_i.data1 = extend1;
fp_cmp_i.data2 = extend2;
fp_cmp_i.rm = rm;
fp_cmp_i.class1 = class1;
fp_cmp_i.class2 = class2;
fp_max_i.data1 = data1;
fp_max_i.data2 = data2;
fp_max_i.ext1 = extend1;
fp_max_i.ext2 = extend2;
fp_max_i.fmt = fmt;
fp_max_i.rm = rm;
fp_max_i.class1 = class1;
fp_max_i.class2 = class2;
fp_sgnj_i.data1 = data1;
fp_sgnj_i.data2 = data2;
fp_sgnj_i.fmt = fmt;
fp_sgnj_i.rm = rm;
fp_fma_i.data1 = extend1;
fp_fma_i.data2 = extend2;
fp_fma_i.data3 = extend3;
fp_fma_i.fmt = fmt;
fp_fma_i.rm = rm;
fp_fma_i.op = op;
fp_fma_i.class1 = class1;
fp_fma_i.class2 = class2;
fp_fma_i.class3 = class3;
fp_fdiv_i.data1 = extend1;
fp_fdiv_i.data2 = extend2;
fp_fdiv_i.fmt = fmt;
fp_fdiv_i.rm = rm;
fp_fdiv_i.op = op;
fp_fdiv_i.class1 = class1;
fp_fdiv_i.class2 = class2;
fp_cvt_i2f_i.data = data1;
fp_cvt_i2f_i.op = op;
fp_cvt_i2f_i.fmt = fmt;
fp_cvt_i2f_i.rm = rm;
fp_cvt_f2f_i.data = extend1;
fp_cvt_f2f_i.fmt = fmt;
fp_cvt_f2f_i.rm = rm;
fp_cvt_f2f_i.classification = class1;
fp_cvt_f2i_i.data = extend1;
fp_cvt_f2i_i.op = op;
fp_cvt_f2i_i.rm = rm;
fp_cvt_f2i_i.classification = class1;
fp_rnd = init_fp_rnd_in;
if (fp_fma_o.ready) begin
fp_rnd = fp_fma_o.fp_rnd;
end else if (fp_fdiv_o.ready) begin
fp_rnd = fp_fdiv_o.fp_rnd;
end else if (op.fcvt_f2f) begin
fp_rnd = fp_cvt_f2f_o.fp_rnd;
end else if (op.fcvt_i2f) begin
fp_rnd = fp_cvt_i2f_o.fp_rnd;
end
fp_rnd_i = fp_rnd;
if (fp_fma_o.ready) begin
result = fp_rnd_o.result;
flags = fp_rnd_o.flags;
ready = 1;
end else if (fp_fdiv_o.ready) begin
result = fp_rnd_o.result;
flags = fp_rnd_o.flags;
ready = 1;
end else if (op.fmadd | op.fmsub | op.fnmadd | op.fnmsub | op.fadd | op.fadd | op.fsub | op.fmul) begin
ready = 0;
end else if (op.fdiv | op.fsqrt) begin
ready = 0;
end else if (op.fcmp) begin
result = fp_cmp_o.result;
flags = fp_cmp_o.flags;
end else if (op.fsgnj) begin
result = fp_sgnj_o.result;
flags = 0;
end else if (op.fmax) begin
result = fp_max_o.result;
flags = fp_max_o.flags;
end else if (op.fcmp) begin
result = fp_cmp_o.result;
flags = fp_cmp_o.flags;
end else if (op.fclass) begin
result = {54'h0, class1};
flags = 0;
end else if (op.fmv_f2i) begin
result = data1;
flags = 0;
end else if (op.fmv_i2f) begin
result = data1;
flags = 0;
end else if (op.fcvt_f2f) begin
result = fp_rnd_o.result;
flags = fp_rnd_o.flags;
end else if (op.fcvt_i2f) begin
result = fp_rnd_o.result;
flags = fp_rnd_o.flags;
end else if (op.fcvt_f2i) begin
result = fp_cvt_f2i_o.result;
flags = fp_cvt_f2i_o.flags;
end
fp_exe_o.result = result;
fp_exe_o.flags = flags;
fp_exe_o.ready = ready;
end
endmodule
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