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sim: sim_moves: handle MOVES, add unit tests

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This commit is contained in:
Mikael Pettersson 2020-07-13 21:32:40 +02:00
parent 9b37ac3702
commit 01bd93b3c3
3 changed files with 50 additions and 0 deletions
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1
erlang/apps/sim/src/sim_core.erl
View File

@ -227,6 +227,7 @@ dispatch(Core, Mem, IR, EA) ->
8#200 -> sim_moves:handle_MOVE(Core, Mem, IR, EA);
8#201 -> sim_moves:handle_MOVEI(Core, Mem, IR, EA);
8#202 -> sim_moves:handle_MOVEM(Core, Mem, IR, EA);
8#203 -> sim_moves:handle_MOVES(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,

24
erlang/apps/sim/src/sim_moves.erl
View File

@ -28,6 +28,7 @@
, handle_MOVE/4
, handle_MOVEI/4
, handle_MOVEM/4
, handle_MOVES/4
]).
-include("sim_core.hrl").
@ -94,7 +95,30 @@ handle_MOVEM_1(Core, Mem, Word, EA) ->
fun(Core1, Mem1) -> handle_MOVEM_1(Core1, Mem1, Word, EA) end)
end.
-spec handle_MOVES(#core{}, sim_mem:mem(), IR :: word(), #ea{})
-> {#core{}, sim_mem:mem(), {ok, integer()} | {error, {module(), term()}}}.
handle_MOVES(Core, Mem, IR, EA) ->
case sim_core:c(Core, Mem, EA) of
{ok, CE} ->
AC = IR band 8#17,
handle_MOVES(Core, Mem, AC, EA, CE);
{error, Reason} ->
sim_core:page_fault(Core, Mem, ea_address(EA), read, Reason,
fun(Core1, Mem1) -> handle_MOVES(Core1, Mem1, IR, EA) end)
end.
handle_MOVES(Core, Mem, AC, EA, Word) ->
case sim_core:cset(Core, Mem, EA, Word) of
{ok, Core1} -> sim_core:next_pc(set_non_zero_ac(Core1, AC, Word), Mem);
{error, Reason} ->
sim_core:page_fault(Core, Mem, ea_address(EA), write, Reason,
fun(Core1, Mem1) -> handle_MOVES(Core1, Mem1, AC, EA, Word) end)
end.
%% Miscellaneous ===============================================================
ea_address(#ea{section = Section, offset = Offset}) ->
(Section bsl 18) bor Offset.
set_non_zero_ac(Core, _AC = 0, _Word) -> Core;
set_non_zero_ac(Core, AC, Word) -> sim_core:set_ac(Core, AC, Word).

25
erlang/apps/sim/test/sim_moves_tests.erl
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@ -46,6 +46,7 @@
-define(OP_MOVE, 8#200).
-define(OP_MOVEI, 8#201).
-define(OP_MOVEM, 8#202).
-define(OP_MOVES, 8#203).
-define(OP_EXCH, 8#250).
%% 2.1.1 Exchange Instruction ==================================================
@ -108,6 +109,30 @@ movem_test() ->
[ {#ea{section = 1, offset = 8#150, islocal = false}, 8#42} % C(1,,150) = 42
]).
moves_ac_test() ->
Prog =
[ {1, 8#100, ?INSN(?OP_MOVEI, 1, 0, 0, 8#27)} % 1,,100/ MOVEI 1,27
, {1, 8#101, ?INSN(?OP_MOVES, 1, 0, 0, 8#150)} % 1,,101/ MOVES 1,150
, {1, 8#102, ?INSN_INVALID} % 1,,102/ <invalid>
, {1, 8#150, 8#42} % 1,,150/ 0,,42
],
expect(Prog, [], {1, 8#102}, ?DEFAULT_FLAGS,
[ {#ea{section = 1, offset = 8#150, islocal = false}, 8#42} % C(1,,150) = 42
, {#ea{section = 1, offset = 1, islocal = false}, 8#42} % AC1 = 42
]).
moves_noac_test() ->
Prog =
[ {1, 8#100, ?INSN(?OP_MOVEI, 0, 0, 0, 8#27)} % 1,,100/ MOVEI 0,27
, {1, 8#101, ?INSN(?OP_MOVES, 0, 0, 0, 8#150)} % 1,,101/ MOVES 0,150
, {1, 8#102, ?INSN_INVALID} % 1,,102/ <invalid>
, {1, 8#150, 8#42} % 1,,150/ 0,,42
],
expect(Prog, [], {1, 8#102}, ?DEFAULT_FLAGS,
[ {#ea{section = 1, offset = 8#150, islocal = false}, 8#42} % C(1,,150) = 42
, {#ea{section = 1, offset = 0, islocal = false}, 8#27} % AC0 = 27
]).
%% Common code to run short sequences ==========================================
expect(Prog, ACs, ExpectedPC, ExpectedFlags, ExpectedEs) ->