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sim: sim_moves: handle MOVEM, add unit test

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This commit is contained in:
Mikael Pettersson
2020-07-13 21:27:19 +02:00
parent 9ccb331bca
commit 9b37ac3702
3 changed files with 29 additions and 0 deletions
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1
erlang/apps/sim/src/sim_core.erl
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@@ -226,6 +226,7 @@ dispatch(Core, Mem, IR, EA) ->
8#104 -> sim_kernel:handle_JSYS(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#250 -> sim_moves:handle_EXCH(Core, Mem, IR, EA);
_ ->
PC = (Core#core.pc_section bsl 18) bor Core#core.pc_offset,

16
erlang/apps/sim/src/sim_moves.erl
View File

@@ -27,6 +27,7 @@
-export([ handle_EXCH/4
, handle_MOVE/4
, handle_MOVEI/4
, handle_MOVEM/4
]).
-include("sim_core.hrl").
@@ -78,6 +79,21 @@ handle_MOVEI(Core, Mem, IR, #ea{offset = E}) ->
AC = IR band 8#17,
sim_core:next_pc(sim_core:set_ac(Core, AC, E), Mem).
-spec handle_MOVEM(#core{}, sim_mem:mem(), IR :: word(), #ea{})
-> {#core{}, sim_mem:mem(), {ok, integer()} | {error, {module(), term()}}}.
handle_MOVEM(Core, Mem, IR, EA) ->
AC = IR band 8#17,
CA = sim_core:get_ac(Core, AC),
handle_MOVEM_1(Core, Mem, CA, EA).
handle_MOVEM_1(Core, Mem, Word, EA) ->
case sim_core:cset(Core, Mem, EA, Word) of
{ok, Core1} -> sim_core:next_pc(Core1, Mem);
{error, Reason} ->
sim_core:page_fault(Core, Mem, ea_address(EA), write, Reason,
fun(Core1, Mem1) -> handle_MOVEM_1(Core1, Mem1, Word, EA) end)
end.
%% Miscellaneous ===============================================================
ea_address(#ea{section = Section, offset = Offset}) ->