diff options
Diffstat (limited to 'rtl/core/decode')
| -rw-r--r-- | rtl/core/decode/ldst/addr.sv | 1 | ||||
| -rw-r--r-- | rtl/core/decode/mux.sv | 10 |
2 files changed, 8 insertions, 3 deletions
diff --git a/rtl/core/decode/ldst/addr.sv b/rtl/core/decode/ldst/addr.sv index 4a61231..345f0ea 100644 --- a/rtl/core/decode/ldst/addr.sv +++ b/rtl/core/decode/ldst/addr.sv @@ -10,5 +10,6 @@ module core_decode_ldst_addr assign alu.op = ldst.increment ? `ALU_ADD : `ALU_SUB; assign alu.rn = ldst.rn; assign alu.rd = ldst.rd; + assign alu.uses_rn = 1; endmodule diff --git a/rtl/core/decode/mux.sv b/rtl/core/decode/mux.sv index ebcc098..594b7f0 100644 --- a/rtl/core/decode/mux.sv +++ b/rtl/core/decode/mux.sv @@ -94,13 +94,15 @@ module core_decode_mux snd_ror_if_imm = 1'bx; snd_shift_by_reg_if_reg = 1'bx; - ldst_addr = {($bits(ldst_addr)){1'bx}}; dec_ldst = {($bits(dec_ldst)){1'bx}}; + ldst_addr = {($bits(ldst_addr)){1'bx}}; // El orden de los casos es importante, NO CAMBIAR priority casez(insn `FIELD_OP) `GROUP_B: begin branch = 1; + dec_data.uses_rn = branch_link; + if(branch_link) begin dec_data.op = `ALU_SUB; dec_data.rd = `R14; @@ -186,14 +188,16 @@ module core_decode_mux end `INSN_MRS: begin - dec_snd.is_imm = 0; - dec_snd.r = mrs_rd; + dec_data.rd = mrs_rd; + dec_data.uses_rn = 0; writeback = 1; conditional = 1; end `GROUP_MSR: begin + dec_data.uses_rn = 0; + snd_is_imm = msr_is_imm; snd_ror_if_imm = 1; snd_shift_by_reg_if_reg = 0; |