From 74ff0f2d5282adf5ce36c9faeb2a5e85c358bf23 Mon Sep 17 00:00:00 2001 From: =?UTF-8?q?Karel=20Ko=C4=8D=C3=AD?= Date: Sun, 21 Jan 2018 18:22:07 +0100 Subject: Implement even more parts of the schema --- qtmips_gui/coreview.cpp | 129 +++++++++++++++++++++++++++++++++--------------- 1 file changed, 88 insertions(+), 41 deletions(-) (limited to 'qtmips_gui/coreview.cpp') diff --git a/qtmips_gui/coreview.cpp b/qtmips_gui/coreview.cpp index 6b85cfe..0fb5e76 100644 --- a/qtmips_gui/coreview.cpp +++ b/qtmips_gui/coreview.cpp @@ -59,18 +59,21 @@ CoreViewScene::CoreViewScene(CoreView *view, machine::QtMipsMachine *machine) : setSceneRect(0, 0, SC_WIDTH, SC_HEIGHT); // Identification cross (TODO remove) + /* QPen pen; pen.setBrush(QBrush(QColor(220, 220, 220))); addLine(width()/2, 0, width()/2, height(), pen); addLine(0, height()/2, width(), height()/2, pen); addRect(0.5, 0.5, width() - 0.5, height() - 0.5, pen); + */ // TODO remove // Elements // // Primary points NEW(ProgramMemory, mem_program, 90, 240, machine); - NEW(DataMemory, mem_data, 600, 300, machine); - NEW(Registers, regs, 210, 240); + NEW(DataMemory, mem_data, 580, 265, machine); + NEW(Registers, regs, 230, 240); + NEW(Alu, alu, 470, 225); // Fetch stage NEW(ProgramCounter, ft.pc, 2, 280, machine); NEW(Latch, ft.latch, 55, 250, machine, 20); @@ -83,20 +86,23 @@ CoreViewScene::CoreViewScene(CoreView *view, machine::QtMipsMachine *machine) : // Decode stage NEW(LogicBlock, dc.ctl_block, 230, 90, {"Control", "unit"}); dc.ctl_block->setSize(35, 70); - NEW(LogicBlock, dc.sign_ext, 230, 360, {"Sign", "extension"}); - NEW(LogicBlock, dc.shift2, 290, 390, "<<2"); - NEW(Adder, dc.add, 320, 390); + NEW(LogicBlock, dc.sign_ext, 250, 400, {"Sign", "extension"}); + NEW(LogicBlock, dc.shift2, 310, 428, "<<2"); + NEW(Adder, dc.add, 340, 428); const coreview::Connector *dc_con_sign_ext = dc.sign_ext->new_connector(1, 0); - NEW(Junction, dc.j_sign_ext, 270, dc_con_sign_ext->y()); + NEW(Junction, dc.j_sign_ext, 290, dc_con_sign_ext->y()); NEW(LogicBlock, dc.cmp, 320, 200, "="); NEW(And, dc.and_branch, 350, 190); dc.cmp->setSize(24, 12); - NEW(Junction, dc.j_inst_up, 180, 126); - NEW(Junction, dc.j_inst_down, 180, dc_con_sign_ext->y()); + NEW(Junction, dc.j_inst_up, 190, 126); + NEW(Junction, dc.j_inst_down, 190, dc_con_sign_ext->y()); // Execute stage - NEW(Alu, alu, 470, 230); - // Memory stage - NEW(Multiplexer, mem_or_reg, 570, 180, 2); + NEW(Junction, ex.j_mux, 420, 316); + NEW(Multiplexer, ex.mux_imm, 450, 306, 2); + // Memory + NEW(Junction, mm.j_addr, 570, mem_data->connector_address()->y()); + // WriteBack stage + NEW(Multiplexer, wb.mem_or_reg, 690, 252, 2); // Connections // coreview::Connection *con; @@ -120,11 +126,21 @@ CoreViewScene::CoreViewScene(CoreView *view, machine::QtMipsMachine *machine) : dc.instr_bus = new_bus(dc.j_inst_up->new_connector(coreview::Connector::AX_Y), dc.j_inst_down->new_connector(coreview::Connector::AX_Y)); new_bus(dc.j_inst_up->new_connector(coreview::Connector::AX_X), dc.ctl_block->new_connector(-1, 0), 2); new_bus(dc.j_inst_down->new_connector(coreview::Connector::AX_X), dc.sign_ext->new_connector(-1, 0), 2); + new_bus(dc.instr_bus->new_connector(regs->connector_read1_reg()->point()), regs->connector_read1_reg(), 2); + new_bus(dc.instr_bus->new_connector(regs->connector_read2_reg()->point()), regs->connector_read2_reg(), 2); + // Execute stage + new_bus(ex.j_mux->new_connector(CON_AX_X), ex.mux_imm->connector_in(0)); + new_bus(ex.mux_imm->connector_out(), alu->connector_in_b()); + // Memory stage + new_bus(mm.j_addr->new_connector(CON_AX_X), mem_data->connector_address()); // From decode stage to fetch stage con = new_signal(dc.and_branch->connector_out(), ft.multiplex->connector_ctl()); con->setAxes({CON_AXIS_Y(365), CON_AXIS_X(490)}); con = new_bus(dc.add->connector_out(), ft.multiplex->connector_in(1)); - con->setAxes({CON_AXIS_Y(340), CON_AXIS_X(480), CON_AXIS_Y(10)}); + con->setAxes({CON_AXIS_Y(360), CON_AXIS_X(480), CON_AXIS_Y(10)}); + // From write back stage to decode stage + con = new_bus(wb.mem_or_reg->connector_out(), regs->connector_write()); + con->setAxes({CON_AXIS_Y(710), CON_AXIS_X(510), CON_AXIS_Y(172)}); connect(regs, SIGNAL(open_registers()), this, SIGNAL(request_registers())); connect(mem_program, SIGNAL(open_mem()), this, SIGNAL(request_program_memory())); @@ -132,54 +148,55 @@ CoreViewScene::CoreViewScene(CoreView *view, machine::QtMipsMachine *machine) : } CoreViewScene::~CoreViewScene() { - for (int i = 0; i < connections.size(); i++) - delete connections[i]; - - delete ft.pc; - delete ft.latch; - delete ft.adder; - delete ft.adder_4; - delete ft.junc_pc; - delete ft.junc_pc_4; - delete ft.multiplex; - delete dc.ctl_block; - delete dc.sign_ext; - delete dc.shift2; - delete dc.cmp; - delete dc.add; - delete dc.j_sign_ext; - delete dc.and_branch; - delete alu; - delete mem_program; - delete mem_data; - delete regs; - delete mem_or_reg; + // We add all items to scene and they are removed in QGraphicsScene descructor so we don't have to care about them here } coreview::Connection *CoreViewScene::new_connection(const coreview::Connector *a, const coreview::Connector *b) { coreview::Connection *c = new coreview::Connection(a, b); - connections.append(c); addItem(c); + c->setZValue(-1); // hide connections under neath the items return c; } coreview::Bus *CoreViewScene::new_bus(const coreview::Connector *a, const coreview::Connector *b, unsigned width) { coreview::Bus *c = new coreview::Bus(a, b, width); - connections.append(c); addItem(c); + c->setZValue(-2); // hide connections under neath the items return c; } coreview::Signal *CoreViewScene::new_signal(const coreview::Connector *a, const coreview::Connector *b) { coreview::Signal *c = new coreview::Signal(a, b); - connections.append(c); addItem(c); - c->setZValue(-1); // hide connections under neath the items + c->setZValue(-3); // hide connections under neath the items return c; } CoreViewSceneSimple::CoreViewSceneSimple(CoreView *view, machine::QtMipsMachine *machine) : CoreViewScene(view, machine) { - NEW(Latch, delay_slot_latch, 160, 50, machine, 150); + NEW(Latch, delay_slot_latch, 55, 460, machine, 50); + + coreview::Connection *con; + // Fetch stage + new_bus(mem_program->connector_instruction(), dc.instr_bus->new_connector(mem_program->connector_instruction()->point())); + con = new_bus(ft.junc_pc_4->new_connector(coreview::Connector::AX_Y), dc.add->connector_in_b()); + con->setAxes({CON_AXIS_Y(270)}); + // Decode stage + con = new_bus(regs->connector_read1(), alu->connector_in_a()); + con->setAxes({CON_AXIS_Y(445)}); + con = new_bus(regs->connector_read2(), ex.mux_imm->connector_in(0)); + con->setAxes({CON_AXIS_Y(420)}); + con = new_bus(dc.j_sign_ext->new_connector(coreview::Connector::AX_X), ex.mux_imm->connector_in(1)); + con->setAxes({CON_AXIS_Y(440)}); + // Execute + new_bus(alu->connector_out(), mm.j_addr->new_connector(CON_AX_X)); + con = new_bus(ex.j_mux->new_connector(CON_AX_Y), mem_data->connector_data_in()); + con->setAxes({CON_AXIS_X(360), CON_AXIS_Y(560)}); + // Memory + con = new_bus(mm.j_addr->new_connector(CON_AX_Y), wb.mem_or_reg->connector_in(0)); + con->setAxes({CON_AXIS_X(250), CON_AXIS_Y(678)}); + con = new_bus(mem_data->connector_data_out(), wb.mem_or_reg->connector_in(1)); + con->setAxes({CON_AXIS_Y(678)}); + // WriteBack } CoreViewSceneSimple::~CoreViewSceneSimple() { @@ -193,7 +210,7 @@ CoreViewScenePipelined::CoreViewScenePipelined(CoreView *view, machine::QtMipsMa latch_id_ex->setTitle("ID/EX"); NEW(Latch, latch_ex_mem, 536, 90, machine, 380); latch_ex_mem->setTitle("EX/MEM"); - NEW(Latch, latch_mem_wb, 680, 90, machine, 380); + NEW(Latch, latch_mem_wb, 660, 90, machine, 380); latch_mem_wb->setTitle("MEM/WB"); NEW_I(inst_fetch, 100, 2, instruction_fetched(const machine::Instruction&)); @@ -214,9 +231,39 @@ CoreViewScenePipelined::CoreViewScenePipelined(CoreView *view, machine::QtMipsMa struct coreview::Latch::ConnectorPair lp_ft_pc = latch_if_id->new_connector(370); new_bus(ft.junc_pc_4->new_connector(coreview::Connector::AX_Y), lp_ft_pc.in); // Decode stage - //new_bus(lp_ft_inst.out, dc.instr_bus->new_connector(lp_ft_inst.out->point())); + new_bus(lp_ft_inst.out, dc.instr_bus->new_connector(lp_ft_inst.out->point())); con = new_bus(lp_ft_pc.out, dc.add->connector_in_b()); con->setAxes({CON_AXIS_Y(270)}); + struct coreview::Latch::ConnectorPair lp_dc_rs = latch_id_ex->new_connector(regs->connector_read1()->y() - latch_id_ex->y()); + struct coreview::Latch::ConnectorPair lp_dc_rt = latch_id_ex->new_connector(regs->connector_read2()->y() - latch_id_ex->y()); + new_bus(regs->connector_read1(), lp_dc_rs.in); + new_bus(regs->connector_read2(), lp_dc_rt.in); + struct coreview::Latch::ConnectorPair lp_dc_immed = latch_id_ex->new_connector(dc.j_sign_ext->y() - latch_id_ex->y()); + new_bus(dc.j_sign_ext->new_connector(coreview::Connector::AX_X), lp_dc_immed.in); + // Execute + con = new_bus(lp_dc_rs.out, alu->connector_in_a()); + con->setAxes({CON_AXIS_Y(445)}); + con = new_bus(lp_dc_rt.out, ex.mux_imm->connector_in(0)); + con->setAxes({CON_AXIS_Y(420)}); + con = new_bus(lp_dc_immed.out, ex.mux_imm->connector_in(1)); + con->setAxes({CON_AXIS_Y(440)}); + struct coreview::Latch::ConnectorPair lp_ex_alu = latch_ex_mem->new_connector(alu->connector_out()->y() - latch_ex_mem->y()); + struct coreview::Latch::ConnectorPair lp_ex_dt = latch_ex_mem->new_connector(270); + new_bus(alu->connector_out(), lp_ex_alu.in); + new_bus(ex.j_mux->new_connector(CON_AX_Y), lp_ex_dt.in); + // Memory + new_bus(lp_ex_alu.out, mm.j_addr->new_connector(CON_AX_X)); + con = new_bus(lp_ex_dt.out, mem_data->connector_data_in()); + con->setAxes({CON_AXIS_Y(560)}); + struct coreview::Latch::ConnectorPair lp_mem_alu = latch_mem_wb->new_connector(160); + struct coreview::Latch::ConnectorPair lp_mem_mem = latch_mem_wb->new_connector(mem_data->connector_data_out()->y() - latch_mem_wb->y()); + new_bus(mm.j_addr->new_connector(CON_AX_Y), lp_mem_alu.in); + new_bus(mem_data->connector_data_out(), lp_mem_mem.in); + // WriteBack + con = new_bus(lp_mem_alu.out, wb.mem_or_reg->connector_in(0)); + con->setAxes({CON_AXIS_Y(678)}); + con = new_bus(lp_mem_mem.out, wb.mem_or_reg->connector_in(1)); + con->setAxes({CON_AXIS_Y(678)}); } CoreViewScenePipelined::~CoreViewScenePipelined() { -- cgit v1.2.3