Fix unsafe decode signals

3 files changed, 4 insertions, 0 deletions

diff --git a/rtl/core/decode/ldst/misc.sv b/rtl/core/decode/ldst/misc.sv
index d8ac898..df7b823 100644
--- a/rtl/core/decode/ldst/misc.sv
+++ b/rtl/core/decode/ldst/misc.sv
@@ -13,6 +13,7 @@ module core_decode_ldst_misc
 
 	logic p, w;
 
+	assign decode.enable = 1'bx;
 	assign decode.rn = insn `FIELD_LDST_MISC_RN;
 	assign decode.rd = insn `FIELD_LDST_MISC_RD;
 	assign decode.size = insn `FIELD_LDST_MISC_H ? LDST_HALF : LDST_BYTE;
diff --git a/rtl/core/decode/ldst/multiple.sv b/rtl/core/decode/ldst/multiple.sv
index 201f333..8a09fc0 100644
--- a/rtl/core/decode/ldst/multiple.sv
+++ b/rtl/core/decode/ldst/multiple.sv
@@ -12,7 +12,9 @@ module core_decode_ldst_multiple
 	logic s, l;
 	reg_list regs;
 
+	assign decode.enable = 1'bx;
 	assign decode.rn = insn `FIELD_LDST_MULT_RN;
+	assign decode.rd = 4'bxxxx;
 	assign decode.size = LDST_WORD;
 	assign decode.load = l;
 	assign decode.increment = insn `FIELD_LDST_MULT_U;
diff --git a/rtl/core/decode/ldst/single.sv b/rtl/core/decode/ldst/single.sv
index 402c17b..b99c1c0 100644
--- a/rtl/core/decode/ldst/single.sv
+++ b/rtl/core/decode/ldst/single.sv
@@ -11,6 +11,7 @@ module core_decode_ldst_single
 
 	logic p, w;
 
+	assign decode.enable = 1'bx;
 	assign decode.rn = insn `FIELD_LDST_SINGLE_RN;
 	assign decode.rd = insn `FIELD_LDST_SINGLE_RD;
 	assign decode.size = insn `FIELD_LDST_SINGLE_B ? LDST_BYTE : LDST_WORD;