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sim: sim_moves: handle MOVMM, add unit test

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This commit is contained in:
Mikael Pettersson
2020-07-16 18:08:37 +02:00
parent 9db877b3cb
commit 97ce9c742d
3 changed files with 22 additions and 0 deletions
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1
erlang/apps/sim/src/sim_core.erl
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@@ -245,6 +245,7 @@ dispatch(Core, Mem, IR, EA) ->
8#213 -> sim_moves:handle_MOVNS(Core, Mem, IR, EA);
8#214 -> sim_moves:handle_MOVM(Core, Mem, IR, EA);
8#215 -> sim_moves:handle_MOVEI(Core, Mem, IR, EA); % MOVMI = MOVEI
8#216 -> sim_moves:handle_MOVMM(Core, Mem, IR, EA);
8#250 -> sim_moves:handle_EXCH(Core, Mem, IR, EA);
_ ->
PC = (Core#core.pc_section bsl 18) bor Core#core.pc_offset,

9
erlang/apps/sim/src/sim_moves.erl
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@@ -30,6 +30,7 @@
, handle_MOVEM/4
, handle_MOVES/4
, handle_MOVM/4
, handle_MOVMM/4
, handle_MOVN/4
, handle_MOVNI/4
, handle_MOVNM/4
@@ -247,6 +248,14 @@ handle_MOVM(Core, Mem, IR, EA) ->
fun(Core1, Mem1) -> handle_MOVM(Core1, Mem1, IR, EA) end)
end.
-spec handle_MOVMM(#core{}, sim_mem:mem(), IR :: word(), #ea{})
-> {#core{}, sim_mem:mem(), {ok, integer()} | {error, {module(), term()}}}.
handle_MOVMM(Core, Mem, IR, EA) ->
AC = IR band 8#17,
CA = sim_core:get_ac(Core, AC),
{Magnitude, Flags} = magnitude(CA),
handle_MOVNM(Core, Mem, Magnitude, Flags, EA).
%% Miscellaneous ===============================================================
ea_address(#ea{section = Section, offset = Offset}) ->

12
erlang/apps/sim/test/sim_moves_tests.erl
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@@ -57,6 +57,7 @@
-define(OP_MOVNS, 8#213).
-define(OP_MOVM, 8#214).
-define(OP_MOVMI, 8#215).
-define(OP_MOVMM, 8#216).
-define(OP_EXCH, 8#250).
%% 2.1.1 Exchange Instruction ==================================================
@@ -325,6 +326,17 @@ movmi_test() ->
[ {#ea{section = 1, offset = 1, islocal = false}, 8#200} % AC1 = 200
]).
movmm_test() ->
Prog =
[ {1, 8#100, ?INSN(?OP_MOVNI, 1, 0, 0, 8#42)} % 1,,100/ MOVNI 1,42
, {1, 8#101, ?INSN(?OP_MOVMM, 1, 0, 0, 8#150)} % 1,,101/ MOVMM 1,150
, {1, 8#102, ?INSN_INVALID} % 1,,102/ <invalid>
, {1, 8#150, 8#27} % 1,,150/ 0,,27
],
expect(Prog, [], {1, 8#102}, ?DEFAULT_FLAGS,
[ {#ea{section = 1, offset = 8#150, islocal = false}, 8#42} % C(1,,150) = 42
]).
%% Common code to run short sequences ==========================================
expect(Prog, ACs, ExpectedPC, ExpectedFlags, ExpectedEs) ->