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-rw-r--r--mips/mips.sail6
1 files changed, 6 insertions, 0 deletions
diff --git a/mips/mips.sail b/mips/mips.sail
index d0c2b385..9e2ac189 100644
--- a/mips/mips.sail
+++ b/mips/mips.sail
@@ -1488,6 +1488,12 @@ union ast member unit HCF
function clause decode (0b010000 : 0b00100 : (regno) rt : 0b10111 : 0b00000000000) =
Some(HCF()) (* simulator halt instruction "MTC0 rt, $23" (cheri specific behaviour) *)
+function clause decode (0b010000 : 0b00100 : (regno) rt : 0b11010 : 0b00000000000) =
+ Some(HCF()) (* simulator halt instruction "MTC0 rt, $26" (cheri specific behaviour) *)
+
+function clause execute (HCF) =
+ () (* halt instruction actually executed by interpreter framework *)
+
function clause decode _ = None
end decode