Update the exception code for riscv LR after clarification on isa-dev.

1 files changed, 4 insertions, 1 deletions

diff --git a/riscv/riscv.sail b/riscv/riscv.sail
index 27ec8a2f..ca30f4b4 100644
--- a/riscv/riscv.sail
+++ b/riscv/riscv.sail
@@ -790,8 +790,11 @@ function clause execute(LOADRES(aq, rl, rs1, width, rd)) =
       WORD   => vaddr[1..0] == 0b00,
       DOUBLE => vaddr[2..0] == 0b000
     } in
+    /* "LR faults like a normal load, even though it's in the AMO major opcode space."
+       - Andrew Waterman, isa-dev, 10 Jul 2018.
+     */
   if (~ (aligned))
-  then { handle_mem_exception(vaddr, E_SAMO_Addr_Align); false }
+  then { handle_mem_exception(vaddr, E_Load_Addr_Align); false }
   else match translateAddr(vaddr, Read, Data) {
          TR_Failure(e) => { handle_mem_exception(vaddr, e); false },
          TR_Address(addr) =>