diff --git a/erlang/apps/sim/src/sim_boolean.erl b/erlang/apps/sim/src/sim_boolean.erl
index 30b6157..dd487c3 100644
--- a/erlang/apps/sim/src/sim_boolean.erl
+++ b/erlang/apps/sim/src/sim_boolean.erl
@@ -33,6 +33,7 @@
         , handle_ANDI/4
         , handle_ANDM/4
         , handle_SETMI/4
+        , handle_SETMM/4
         , handle_SETZ/4
         , handle_SETZB/4
         , handle_SETZM/4
@@ -206,6 +207,18 @@ handle_SETMI(Core, Mem, IR, #ea{section = Section0, offset = Offset, islocal = I
   Word = (Section1 bsl 18) bor Offset,
   sim_core:next_pc(sim_core:set_ac(Core, AC, Word), Mem).
 
+-spec handle_SETMM(#core{}, sim_mem:mem(), IR :: word(), #ea{})
+      -> {#core{}, sim_mem:mem(), {ok, integer()} | {error, {module(), term()}}}.
+handle_SETMM(Core, Mem, IR, EA) ->
+  %% SETMM only checks that E is readable and writable.
+  case sim_core:c(Core, Mem, EA) of
+    {ok, CE} ->
+      handle_ANDM_1(Core, Mem, EA, CE);
+    {error, Reason} ->
+      sim_core:page_fault(Core, Mem, ea_address(EA), read, Reason,
+                          fun(Core1, Mem1) -> handle_SETMM(Core1, Mem1, IR, EA) end)
+  end.
+
 %% Miscellaneous ===============================================================
 
 ea_address(#ea{section = Section, offset = Offset}) ->
diff --git a/erlang/apps/sim/src/sim_core.erl b/erlang/apps/sim/src/sim_core.erl
index 41cdfd1..ea1f9fd 100644
--- a/erlang/apps/sim/src/sim_core.erl
+++ b/erlang/apps/sim/src/sim_core.erl
@@ -267,6 +267,7 @@ dispatch(Core, Mem, IR, EA) ->
     8#413 -> sim_boolean:handle_ANDCAB(Core, Mem, IR, EA);
     8#414 -> sim_moves:handle_MOVE(Core, Mem, IR, EA); % SETM = MOVE
     8#415 -> sim_boolean:handle_SETMI(Core, Mem, IR, EA); % SETMI = MOVEI in section 0, XMOVEI elsewhere
+    8#416 -> sim_boolean:handle_SETMM(Core, Mem, IR, EA);
     _ ->
       PC = (Core#core.pc_section bsl 18) bor Core#core.pc_offset,
       {Core, Mem, {error, {?MODULE, {dispatch, PC, IR, EA}}}}
diff --git a/erlang/apps/sim/test/sim_boolean_tests.erl b/erlang/apps/sim/test/sim_boolean_tests.erl
index 6d356f6..d14cff2 100644
--- a/erlang/apps/sim/test/sim_boolean_tests.erl
+++ b/erlang/apps/sim/test/sim_boolean_tests.erl
@@ -58,6 +58,7 @@
 -define(OP_SETM, 8#414).
 -define(OP_SETMI, 8#415).
 -define(OP_XMOVEI, ?OP_SETMI).
+-define(OP_SETMM, 8#416).
 
 %% 2.4 Boolean Functions =======================================================
 
@@ -258,6 +259,18 @@ xmovei_non_ac_test() ->
          [ {#ea{section = 1, offset = 1, islocal = false}, ?COMMA2(2, 8#42)} % AC1 = 2,,42
          ]).
 
+setmm_test() ->
+  Prog =
+    [ {1, 8#100, ?INSN(?OP_MOVEI, 1, 0, 0, 3)}        % 1,,100/ MOVEI 1,3
+    , {1, 8#101, ?INSN(?OP_SETMM, 1, 0, 0, 8#200)}    % 1,,101/ SETMM 1,200
+    , {1, 8#102, ?INSN_INVALID}                       % 1,,102/ <invalid>
+    , {1, 8#200, ?COMMA2(1, 2)}                       % 1,,200/ 1,,2
+    ],
+  expect(Prog, [], {1, 8#102}, ?DEFAULT_FLAGS,
+         [ {#ea{section = 1, offset = 8#200, islocal = false}, ?COMMA2(1, 2)} % C(1,,200) = 1,,2
+         , {#ea{section = 1, offset = 1, islocal = false}, 3}
+         ]).
+
 %% Common code to run short sequences ==========================================
 
 expect(Prog, ACs, ExpectedPC, ExpectedFlags, ExpectedEs) ->