decode1: Implement tlbsync as a no-op

Signed-off-by: Paul Mackerras <paulus@ozlabs.org>
4 years ago · c0f282b691
parent d6134babc0
commit c0f282b691
1 changed files with 1 additions and 0 deletions
--- a/decode1.vhdl
+++ b/decode1.vhdl
@ -405,6 +405,7 @@ architecture behaviour of decode1 is
        2#0000000100#  =>       (ALU,  NONE, OP_TRAP,      RA,         RB,          NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '1', '0', NONE, '0', '1', NONE), -- tw
        2#0100110010#  =>       (LDST, NONE, OP_TLBIE,     NONE,       RB,          RS,   NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE), -- tlbie
        2#0100010010#  =>       (LDST, NONE, OP_TLBIE,     NONE,       RB,          RS,   NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '0', NONE), -- tlbiel
+        2#1000110110#  =>       (ALU,  NONE, OP_NOP,       NONE,       NONE,        NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1', NONE), -- tlbsync
        2#0000011110#  =>       (ALU,  NONE, OP_NOP,       NONE,       NONE,        NONE, NONE, '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', NONE, '0', '1', NONE), -- wait
        2#0100111100#  =>       (ALU,  NONE, OP_XOR,       NONE,       RB,          RS,   RA,   '0', '0', '0', '0', ZERO, '0', NONE, '0', '0', '0', '0', '0', '0', RC,   '0', '0', NONE), -- xor
        others => illegal_inst