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Simplify branch_op/slt_op signals

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Olof Kindgren
2021-10-08 22:15:55 +02:00
parent 9d3ebf3e96
commit 9c4bdd4bfe
3 changed files with 12 additions and 12 deletions
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10
rtl/serv_decode.v
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@@ -15,7 +15,7 @@ module serv_decode
output reg o_ebreak,
output reg o_branch_op,
output reg o_shift_op,
output reg o_slt_op,
output reg o_slt_or_branch,
output reg o_rd_op,
output reg o_two_stage_op,
output reg o_dbus_en,
@@ -80,8 +80,8 @@ module serv_decode
~opcode[2] | (funct3[0] & ~funct3[1] & ~opcode[0] & ~opcode[4]) |
(funct3[1] & ~funct3[2] & ~opcode[0] & ~opcode[4]) | co_mdu_op;
wire co_shift_op = op_or_opimm & (funct3[1:0] == 2'b01) & !co_mdu_op;
wire co_slt_op = op_or_opimm & (funct3[2:1] == 2'b01) & !co_mdu_op;
wire co_branch_op = opcode[4] & !opcode[2];
wire co_slt_or_branch = (opcode[4] | (funct3[1] & opcode[2]) | (imm30 & opcode[2] & opcode[3] & ~funct3[2])) & !co_mdu_op;
wire co_branch_op = opcode[4];
wire co_dbus_en = ~opcode[2] & ~opcode[4];
wire co_mtval_pc = opcode[4];
wire co_mem_word = funct3[1];
@@ -259,7 +259,7 @@ module serv_decode
o_ebreak = co_ebreak;
o_branch_op = co_branch_op;
o_shift_op = co_shift_op;
o_slt_op = co_slt_op;
o_slt_or_branch = co_slt_or_branch;
o_rd_op = co_rd_op;
o_mdu_op = co_mdu_op;
o_ext_funct3 = co_ext_funct3;
@@ -321,7 +321,7 @@ module serv_decode
o_mtval_pc <= co_mtval_pc;
o_branch_op <= co_branch_op;
o_shift_op <= co_shift_op;
o_slt_op <= co_slt_op;
o_slt_or_branch <= co_slt_or_branch;
o_rd_op <= co_rd_op;
o_mdu_op <= co_mdu_op;
o_ext_funct3 <= co_ext_funct3;