Processor/Instructions: Fixed a bug where if IN executed after a microcoded instruction the cpu would go into undefined behavior

2023-11-26 00:18:15 +00:00 · 2023-11-26 00:18:15 +00:00 · f1dc9d8a59
commit f1dc9d8a59
parent f07e0e7c1f
1 changed files with 1 additions and 0 deletions
--- a/system/decoder.v
+++ b/system/decoder.v
@ -945,6 +945,7 @@ always @( posedge clock ) begin
 				ERROR<=0;
 				ALU_OP<=`ALU_OP_ADD;
 				next_state=`EXEC_MEMIO_READ_SETADDR;
+				seq_addr_entry<=`UCODE_NO_INSTRUCTION;
 			end
 			default:begin
 				`invalid_instruction