From ed0bd705f94f6aea568ec8405534984a37770f21 Mon Sep 17 00:00:00 2001 From: Alejandro Soto Date: Mon, 25 Sep 2023 19:12:49 -0600 Subject: rtl/core, tb: replace bus_master with a new top-level module --- rtl/core/decode/coproc_dec.sv | 24 ++++++++++++++++++++++++ 1 file changed, 24 insertions(+) create mode 100644 rtl/core/decode/coproc_dec.sv (limited to 'rtl/core/decode/coproc_dec.sv') diff --git a/rtl/core/decode/coproc_dec.sv b/rtl/core/decode/coproc_dec.sv new file mode 100644 index 0000000..153cadf --- /dev/null +++ b/rtl/core/decode/coproc_dec.sv @@ -0,0 +1,24 @@ +`include "core/decode/isa.sv" +`include "core/uarch.sv" + +module core_decode_coproc +( + input word insn, + + output coproc_decode decode, + output reg_num rd, + output logic writeback, + update_flags +); + + assign rd = insn `FIELD_CP_RD; + assign writeback = decode.load && rd != `R15; + assign update_flags = decode.load && rd == `R15; + + assign decode.crn = insn `FIELD_CP_CRN; + assign decode.crm = insn `FIELD_CP_CRM; + assign decode.op1 = insn `FIELD_CP_OPCODE; + assign decode.op2 = insn `FIELD_CP_OPCODE2; + assign decode.load = insn `FIELD_CP_LOAD; + +endmodule -- cgit v1.2.3