doc: Fix RISC-V X overload

This seems to be the current name for the overload.

1 files changed, 1 insertions, 1 deletions

diff --git a/doc/riscv.tex b/doc/riscv.tex
index ca2b9dfe..5c64b947 100644
--- a/doc/riscv.tex
+++ b/doc/riscv.tex
@@ -56,7 +56,7 @@ register Xs : vector(32, dec, xlenbits)
 
 \sailval{wX}
 \sailfn{wX}
-\sailoverloadUUX
+\sailoverloadXXX
 
 We also give a function \ll{MEMr} for reading memory, this function
 just points at a builtin we have defined elsewhere. Note that