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julius |
//////////////////////////////////////////////////////////////////////
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//// ////
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360 |
julius |
//// or1200_monitor ////
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//// ////
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//// OR1200 processor monitor module ////
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//// ////
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//////////////////////////////////////////////////////////////////////
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//// ////
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julius |
//// Copyright (C) 2009, 2010 Authors and OPENCORES.ORG ////
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julius |
//// ////
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//// This source file may be used and distributed without ////
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//// restriction provided that this copyright statement is not ////
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//// removed from the file and that any derivative work contains ////
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//// the original copyright notice and the associated disclaimer. ////
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//// ////
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//// This source file is free software; you can redistribute it ////
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//// and/or modify it under the terms of the GNU Lesser General ////
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//// Public License as published by the Free Software Foundation; ////
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//// either version 2.1 of the License, or (at your option) any ////
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//// later version. ////
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//// ////
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//// This source is distributed in the hope that it will be ////
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//// useful, but WITHOUT ANY WARRANTY; without even the implied ////
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//// warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR ////
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//// PURPOSE. See the GNU Lesser General Public License for more ////
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//// details. ////
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//// ////
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//// You should have received a copy of the GNU Lesser General ////
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//// Public License along with this source; if not, download it ////
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//// from http://www.opencores.org/lgpl.shtml ////
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//// ////
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//////////////////////////////////////////////////////////////////////
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67 |
julius |
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55 |
julius |
`include "timescale.v"
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6 |
julius |
`include "or1200_defines.v"
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360 |
julius |
`include "orpsoc-testbench-defines.v"
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`include "test-defines.v"
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415 |
julius |
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6 |
julius |
//
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julius |
// Top of TB
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//
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`define TB_TOP orpsoc_testbench
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//
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// Top of DUT
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//
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`define DUT_TOP `TB_TOP.dut
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//
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julius |
// Top of OR1200 inside test bench
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//
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julius |
`define OR1200_TOP `DUT_TOP.or1200_top0
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360 |
julius |
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397 |
julius |
//
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// Define to enable lookup file generation
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//
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//`define OR1200_MONITOR_LOOKUP
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360 |
julius |
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6 |
julius |
//
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julius |
// Define to enable SPR access log file generation
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6 |
julius |
//
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julius |
//`define OR1200_MONITOR_SPRS
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julius |
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julius |
//
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julius |
// Enable logging of state during execution
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julius |
//
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julius |
//`define OR1200_MONITOR_EXEC_STATE
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//
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// Enable disassembly of instructions in execution state log
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//
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julius |
//`define OR1200_MONITOR_PRINT_DISASSEMBLY
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julius |
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julius |
// Can either individually enable things above, or usually have the scripts
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// running the simulation pass the PROCESSOR_MONITOR_ENABLE_LOGS define to
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// enable them all.
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julius |
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julius |
`ifdef PROCESSOR_MONITOR_ENABLE_LOGS
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`define OR1200_MONITOR_EXEC_STATE
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`define OR1200_MONITOR_SPRS
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`define OR1200_MONITOR_LOOKUP
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`endif
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julius |
//
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julius |
// Memory coherence checking (double check instruction in fetch stage against
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// what is in memory.)
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//
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//`define MEM_COHERENCE_CHECK
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//
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julius |
// Top of OR1200 inside test bench
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//
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`define CPU or1200
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`define CPU_cpu or1200_cpu
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`define CPU_rf or1200_rf
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`define CPU_except or1200_except
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`define CPU_ctrl or1200_ctrl
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`define CPU_sprs or1200_sprs
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julius |
module or1200_monitor;
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integer fexe;
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reg [23:0] ref;
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julius |
`ifdef OR1200_MONITOR_SPRS
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julius |
integer fspr;
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julius |
`endif
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6 |
julius |
integer fgeneral;
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julius |
`ifdef OR1200_MONITOR_LOOKUP
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julius |
integer flookup;
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julius |
`endif
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6 |
julius |
integer r3;
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integer insns;
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348 |
julius |
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julius |
//
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// Initialization
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//
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initial begin
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ref = 0;
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julius |
`ifdef OR1200_MONITOR_EXEC_STATE
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julius |
fexe = $fopen({"../out/",`TEST_NAME_STRING,"-executed.log"});
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julius |
`endif
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6 |
julius |
$timeformat (-9, 2, " ns", 12);
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julius |
`ifdef OR1200_MONITOR_SPRS
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julius |
fspr = $fopen({"../out/",`TEST_NAME_STRING,"-sprs.log"});
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julius |
`endif
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julius |
fgeneral = $fopen({"../out/",`TEST_NAME_STRING,"-general.log"});
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julius |
`ifdef OR1200_MONITOR_LOOKUP
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julius |
flookup = $fopen({"../out/",`TEST_NAME_STRING,"-lookup.log"});
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julius |
`endif
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julius |
insns = 0;
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end
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//
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// Get GPR
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//
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task get_gpr;
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input [4:0] gpr_no;
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output [31:0] gpr;
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integer j;
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begin
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348 |
julius |
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`ifdef OR1200_RFRAM_GENERIC
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6 |
julius |
for(j = 0; j < 32; j = j + 1) begin
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julius |
gpr[j] = `OR1200_TOP.`CPU_cpu.`CPU_rf.rf_a.mem[gpr_no*32+j];
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julius |
end
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348 |
julius |
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67 |
julius |
`else
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348 |
julius |
//gpr = `OR1200_TOP.`CPU_cpu.`CPU_rf.rf_a.mem[gpr_no];
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gpr = `OR1200_TOP.`CPU_cpu.`CPU_rf.rf_a.get_gpr(gpr_no);
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`endif
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6 |
julius |
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348 |
julius |
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end
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endtask
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6 |
julius |
//
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// Write state of the OR1200 registers into a file
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//
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// Limitation: only a small subset of register file RAMs
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// are supported
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//
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task display_arch_state;
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reg [5:0] i;
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reg [31:0] r;
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integer j;
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begin
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397 |
julius |
`ifdef OR1200_MONITOR_EXEC_STATE
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julius |
ref = ref + 1;
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397 |
julius |
`ifdef OR1200_MONITOR_LOOKUP
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julius |
$fdisplay(flookup, "Instruction %d: %t", insns, $time);
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julius |
`endif
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julius |
$fwrite(fexe, "\nEXECUTED(%d): %h: %h", insns,
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`OR1200_TOP.`CPU_cpu.`CPU_except.wb_pc,
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`OR1200_TOP.`CPU_cpu.`CPU_ctrl.wb_insn);
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`ifdef OR1200_MONITOR_PRINT_DISASSEMBLY
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$fwrite(fexe,"\t");
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// Decode the instruction, print it out
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or1200_print_op(`OR1200_TOP.`CPU_cpu.`CPU_ctrl.wb_insn);
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`endif
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julius |
for(i = 0; i < 32; i = i + 1) begin
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if (i % 4 == 0)
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$fdisplay(fexe);
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get_gpr(i, r);
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$fwrite(fexe, "GPR%d: %h ", i, r);
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end
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$fdisplay(fexe);
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348 |
julius |
r = `OR1200_TOP.`CPU_cpu.`CPU_sprs.sr;
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julius |
$fwrite(fexe, "SR : %h ", r);
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348 |
julius |
r = `OR1200_TOP.`CPU_cpu.`CPU_sprs.epcr;
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6 |
julius |
$fwrite(fexe, "EPCR0: %h ", r);
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julius |
r = `OR1200_TOP.`CPU_cpu.`CPU_sprs.eear;
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6 |
julius |
$fwrite(fexe, "EEAR0: %h ", r);
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348 |
julius |
r = `OR1200_TOP.`CPU_cpu.`CPU_sprs.esr;
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julius |
$fdisplay(fexe, "ESR0 : %h", r);
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julius |
`endif // `ifdef OR1200_MONITOR_EXEC_STATE
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julius |
`ifdef OR1200_DISPLAY_EXECUTED
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ref = ref + 1;
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julius |
`ifdef OR1200_MONITOR_LOOKUP
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julius |
$fdisplay(flookup, "Instruction %d: %t", insns, $time);
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julius |
`endif
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julius |
$fwrite(fexe, "\nEXECUTED(%d): %h: %h", insns, `OR1200_TOP.`CPU_cpu.`CPU_except.wb_pc, `OR1200_TOP.`CPU_cpu.`CPU_ctrl.wb_insn);
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julius |
`endif
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julius |
insns = insns + 1;
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julius |
end
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endtask // display_arch_state
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/* Keep a trace buffer of the last lot of instructions and addresses
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* "executed",as read from the writeback stage, and cause a $finish if we hit
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* an instruction that is invalid, such as all zeros.
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* Currently, only breaks on an all zero instruction, but should probably be
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* made to break for anything with an X in it too. And of course ideally this
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* shouldn't be needed - but is handy if someone changes something and stops
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* the test continuing forever.
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*/
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49 |
julius |
integer num_nul_inst;
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initial num_nul_inst = 0;
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julius |
task monitor_for_crash;
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348 |
julius |
`define OR1200_MONITOR_CRASH_TRACE_SIZE 32
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//Trace buffer of 32 instructions
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reg [31:0] insn_trace [0:`OR1200_MONITOR_CRASH_TRACE_SIZE-1];
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//Trace buffer of the addresses of those instructions
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reg [31:0] addr_trace [0:`OR1200_MONITOR_CRASH_TRACE_SIZE-1];
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6 |
julius |
integer i;
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begin
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348 |
julius |
if (`OR1200_TOP.`CPU_cpu.`CPU_ctrl.wb_insn == 32'h00000000)
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49 |
julius |
num_nul_inst = num_nul_inst + 1;
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348 |
julius |
else
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num_nul_inst = 0; // Reset it
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49 |
julius |
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if (num_nul_inst == 1000) // Sat a loop a bit too long...
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6 |
julius |
begin
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348 |
julius |
$fdisplay(fgeneral, "ERROR - no instruction at PC %h",
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`OR1200_TOP.`CPU_cpu.`CPU_except.wb_pc);
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$fdisplay(fgeneral, "Crash trace: Last %d instructions: ",
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`OR1200_MONITOR_CRASH_TRACE_SIZE);
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6 |
julius |
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$fdisplay(fgeneral, "PC\t\tINSTR");
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for(i=`OR1200_MONITOR_CRASH_TRACE_SIZE-1;i>=0;i=i-1) begin
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$fdisplay(fgeneral, "%h\t%h",addr_trace[i], insn_trace[i]);
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end
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#100 $finish;
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end
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else
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begin
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for(i=`OR1200_MONITOR_CRASH_TRACE_SIZE-1;i>0;i=i-1) begin
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insn_trace[i] = insn_trace[i-1];
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addr_trace[i] = addr_trace[i-1];
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end
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348 |
julius |
insn_trace[0] = `OR1200_TOP.`CPU_cpu.`CPU_ctrl.wb_insn;
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addr_trace[0] = `OR1200_TOP.`CPU_cpu.`CPU_except.wb_pc;
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| 256 |
6 |
julius |
end
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| 257 |
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| 258 |
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end
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| 259 |
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endtask // monitor_for_crash
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| 260 |
348 |
julius |
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| 261 |
6 |
julius |
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| 262 |
348 |
julius |
//
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| 263 |
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// Write state of the OR1200 registers into a file; version for exception
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| 264 |
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//
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| 265 |
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task display_arch_state_except;
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| 266 |
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reg [5:0] i;
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reg [31:0] r;
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| 268 |
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integer j;
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| 269 |
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begin
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| 270 |
397 |
julius |
`ifdef OR1200_MONITOR_EXEC_STATE
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| 271 |
348 |
julius |
ref = ref + 1;
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| 272 |
397 |
julius |
`ifdef OR1200_MONITOR_LOOKUP
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| 273 |
348 |
julius |
$fdisplay(flookup, "Instruction %d: %t", insns, $time);
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| 274 |
397 |
julius |
`endif
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| 275 |
348 |
julius |
$fwrite(fexe, "\nEXECUTED(%d): %h: %h (exception)", insns, `OR1200_TOP.`CPU_cpu.`CPU_except.ex_pc, `OR1200_TOP.`CPU_cpu.`CPU_ctrl.ex_insn);
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| 276 |
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for(i = 0; i < 32; i = i + 1) begin
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| 277 |
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if (i % 4 == 0)
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| 278 |
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$fdisplay(fexe);
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| 279 |
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get_gpr(i, r);
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| 280 |
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$fwrite(fexe, "GPR%d: %h ", i, r);
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| 281 |
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end
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| 282 |
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$fdisplay(fexe);
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| 283 |
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r = `OR1200_TOP.`CPU_cpu.`CPU_sprs.sr;
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| 284 |
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$fwrite(fexe, "SR : %h ", r);
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| 285 |
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r = `OR1200_TOP.`CPU_cpu.`CPU_sprs.epcr;
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| 286 |
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$fwrite(fexe, "EPCR0: %h ", r);
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r = `OR1200_TOP.`CPU_cpu.`CPU_sprs.eear;
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| 288 |
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$fwrite(fexe, "EEAR0: %h ", r);
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r = `OR1200_TOP.`CPU_cpu.`CPU_sprs.esr;
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| 290 |
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$fdisplay(fexe, "ESR0 : %h", r);
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| 291 |
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insns = insns + 1;
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| 292 |
397 |
julius |
`endif // `ifdef OR1200_MONITOR_EXEC_STATE
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| 293 |
348 |
julius |
`ifdef OR1200_DISPLAY_EXECUTED
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| 294 |
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ref = ref + 1;
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| 295 |
397 |
julius |
`ifdef OR1200_MONITOR_LOOKUP
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| 296 |
348 |
julius |
$fdisplay(flookup, "Instruction %d: %t", insns, $time);
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| 297 |
397 |
julius |
`endif
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| 298 |
348 |
julius |
$fwrite(fexe, "\nEXECUTED(%d): %h: %h (exception)", insns,
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| 299 |
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`OR1200_TOP.`CPU_cpu.`CPU_except.ex_pc,
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| 300 |
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`OR1200_TOP.`CPU_cpu.`CPU_ctrl.ex_insn);
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| 301 |
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insns = insns + 1;
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| 302 |
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`endif
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| 303 |
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| 304 |
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end
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| 305 |
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endtask
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| 306 |
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| 307 |
6 |
julius |
integer iwb_progress;
|
| 308 |
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reg [31:0] iwb_progress_addr;
|
| 309 |
|
|
//
|
| 310 |
|
|
// WISHBONE bus checker
|
| 311 |
|
|
//
|
| 312 |
|
|
always @(posedge `OR1200_TOP.iwb_clk_i)
|
| 313 |
|
|
if (`OR1200_TOP.iwb_rst_i) begin
|
| 314 |
|
|
iwb_progress = 0;
|
| 315 |
|
|
iwb_progress_addr = `OR1200_TOP.iwb_adr_o;
|
| 316 |
|
|
end
|
| 317 |
|
|
else begin
|
| 318 |
|
|
if (`OR1200_TOP.iwb_cyc_o && (iwb_progress != 2)) begin
|
| 319 |
|
|
iwb_progress = 1;
|
| 320 |
|
|
end
|
| 321 |
|
|
if (`OR1200_TOP.iwb_stb_o) begin
|
| 322 |
|
|
if (iwb_progress >= 1) begin
|
| 323 |
|
|
if (iwb_progress == 1)
|
| 324 |
|
|
iwb_progress_addr = `OR1200_TOP.iwb_adr_o;
|
| 325 |
|
|
iwb_progress = 2;
|
| 326 |
|
|
end
|
| 327 |
|
|
else begin
|
| 328 |
|
|
$fdisplay(fgeneral, "WISHBONE protocol violation: `OR1200_TOP.iwb_stb_o raised without `OR1200_TOP.iwb_cyc_o, at %t\n", $time);
|
| 329 |
|
|
#100 $finish;
|
| 330 |
|
|
end
|
| 331 |
|
|
end
|
| 332 |
|
|
if (`OR1200_TOP.iwb_ack_i & `OR1200_TOP.iwb_err_i) begin
|
| 333 |
|
|
$fdisplay(fgeneral, "WISHBONE protocol violation: `OR1200_TOP.iwb_ack_i and `OR1200_TOP.iwb_err_i raised at the same time, at %t\n", $time);
|
| 334 |
|
|
end
|
| 335 |
|
|
if ((iwb_progress == 2) && (iwb_progress_addr != `OR1200_TOP.iwb_adr_o)) begin
|
| 336 |
|
|
$fdisplay(fgeneral, "WISHBONE protocol violation: `OR1200_TOP.iwb_adr_o changed while waiting for `OR1200_TOP.iwb_err_i/`OR1200_TOP.iwb_ack_i, at %t\n", $time);
|
| 337 |
|
|
#100 $finish;
|
| 338 |
|
|
end
|
| 339 |
|
|
if (`OR1200_TOP.iwb_ack_i | `OR1200_TOP.iwb_err_i)
|
| 340 |
|
|
if (iwb_progress == 2) begin
|
| 341 |
|
|
iwb_progress = 0;
|
| 342 |
|
|
iwb_progress_addr = `OR1200_TOP.iwb_adr_o;
|
| 343 |
|
|
end
|
| 344 |
|
|
else begin
|
| 345 |
|
|
$fdisplay(fgeneral, "WISHBONE protocol violation: `OR1200_TOP.iwb_ack_i/`OR1200_TOP.iwb_err_i raised without `OR1200_TOP.iwb_cyc_i/`OR1200_TOP.iwb_stb_i, at %t\n", $time);
|
| 346 |
|
|
#100 $finish;
|
| 347 |
|
|
end
|
| 348 |
|
|
if ((iwb_progress == 2) && !`OR1200_TOP.iwb_stb_o) begin
|
| 349 |
|
|
$fdisplay(fgeneral, "WISHBONE protocol violation: `OR1200_TOP.iwb_stb_o lowered without `OR1200_TOP.iwb_err_i/`OR1200_TOP.iwb_ack_i, at %t\n", $time);
|
| 350 |
348 |
julius |
#100 $finish;
|
| 351 |
6 |
julius |
end
|
| 352 |
|
|
end
|
| 353 |
|
|
|
| 354 |
|
|
integer dwb_progress;
|
| 355 |
|
|
reg [31:0] dwb_progress_addr;
|
| 356 |
|
|
//
|
| 357 |
|
|
// WISHBONE bus checker
|
| 358 |
|
|
//
|
| 359 |
|
|
always @(posedge `OR1200_TOP.dwb_clk_i)
|
| 360 |
|
|
if (`OR1200_TOP.dwb_rst_i)
|
| 361 |
|
|
dwb_progress = 0;
|
| 362 |
|
|
else begin
|
| 363 |
|
|
if (`OR1200_TOP.dwb_cyc_o && (dwb_progress != 2))
|
| 364 |
|
|
dwb_progress = 1;
|
| 365 |
|
|
if (`OR1200_TOP.dwb_stb_o)
|
| 366 |
|
|
if (dwb_progress >= 1) begin
|
| 367 |
|
|
if (dwb_progress == 1)
|
| 368 |
|
|
dwb_progress_addr = `OR1200_TOP.dwb_adr_o;
|
| 369 |
|
|
dwb_progress = 2;
|
| 370 |
|
|
end
|
| 371 |
|
|
else begin
|
| 372 |
|
|
$fdisplay(fgeneral, "WISHBONE protocol violation: `OR1200_TOP.dwb_stb_o raised without `OR1200_TOP.dwb_cyc_o, at %t\n", $time);
|
| 373 |
|
|
#100 $finish;
|
| 374 |
|
|
end
|
| 375 |
|
|
if (`OR1200_TOP.dwb_ack_i & `OR1200_TOP.dwb_err_i) begin
|
| 376 |
|
|
$fdisplay(fgeneral, "WISHBONE protocol violation: `OR1200_TOP.dwb_ack_i and `OR1200_TOP.dwb_err_i raised at the same time, at %t\n", $time);
|
| 377 |
|
|
end
|
| 378 |
|
|
if ((dwb_progress == 2) && (dwb_progress_addr != `OR1200_TOP.dwb_adr_o)) begin
|
| 379 |
|
|
$fdisplay(fgeneral, "WISHBONE protocol violation: `OR1200_TOP.dwb_adr_o changed while waiting for `OR1200_TOP.dwb_err_i/`OR1200_TOP.dwb_ack_i, at %t\n", $time);
|
| 380 |
|
|
#100 $finish;
|
| 381 |
|
|
end
|
| 382 |
|
|
if (`OR1200_TOP.dwb_ack_i | `OR1200_TOP.dwb_err_i)
|
| 383 |
|
|
if (dwb_progress == 2) begin
|
| 384 |
|
|
dwb_progress = 0;
|
| 385 |
|
|
dwb_progress_addr = `OR1200_TOP.dwb_adr_o;
|
| 386 |
|
|
end
|
| 387 |
|
|
else begin
|
| 388 |
|
|
$fdisplay(fgeneral, "WISHBONE protocol violation: `OR1200_TOP.dwb_ack_i/`OR1200_TOP.dwb_err_i raised without `OR1200_TOP.dwb_cyc_i/`OR1200_TOP.dwb_stb_i, at %t\n", $time);
|
| 389 |
|
|
#100 $finish;
|
| 390 |
|
|
end
|
| 391 |
|
|
if ((dwb_progress == 2) && !`OR1200_TOP.dwb_stb_o) begin
|
| 392 |
|
|
$fdisplay(fgeneral, "WISHBONE protocol violation: `OR1200_TOP.dwb_stb_o lowered without `OR1200_TOP.dwb_err_i/`OR1200_TOP.dwb_ack_i, at %t\n", $time);
|
| 393 |
|
|
#100 $finish;
|
| 394 |
|
|
end
|
| 395 |
|
|
end
|
| 396 |
|
|
|
| 397 |
|
|
//
|
| 398 |
|
|
// Hooks for:
|
| 399 |
|
|
// - displaying registers
|
| 400 |
|
|
// - end of simulation
|
| 401 |
|
|
// - access to SPRs
|
| 402 |
|
|
//
|
| 403 |
348 |
julius |
always @(posedge `OR1200_TOP.`CPU_cpu.`CPU_ctrl.clk)
|
| 404 |
|
|
if (!`OR1200_TOP.`CPU_cpu.`CPU_ctrl.wb_freeze) begin
|
| 405 |
|
|
// #2;
|
| 406 |
|
|
if (((`OR1200_TOP.`CPU_cpu.`CPU_ctrl.wb_insn[31:26] != `OR1200_OR32_NOP)
|
| 407 |
|
|
| !`OR1200_TOP.`CPU_cpu.`CPU_ctrl.wb_insn[16])
|
| 408 |
|
|
& !(`OR1200_TOP.`CPU_cpu.`CPU_except.except_flushpipe &
|
| 409 |
|
|
`OR1200_TOP.`CPU_cpu.`CPU_except.ex_dslot))
|
| 410 |
6 |
julius |
begin
|
| 411 |
|
|
display_arch_state;
|
| 412 |
|
|
monitor_for_crash;
|
| 413 |
|
|
end
|
| 414 |
|
|
else
|
| 415 |
348 |
julius |
if (`OR1200_TOP.`CPU_cpu.`CPU_except.except_flushpipe)
|
| 416 |
6 |
julius |
display_arch_state_except;
|
| 417 |
348 |
julius |
// small hack to stop simulation (l.nop 1):
|
| 418 |
|
|
if (`OR1200_TOP.`CPU_cpu.`CPU_ctrl.wb_insn == 32'h1500_0001) begin
|
| 419 |
6 |
julius |
get_gpr(3, r3);
|
| 420 |
|
|
$fdisplay(fgeneral, "%t: l.nop exit (%h)", $time, r3);
|
| 421 |
|
|
$finish;
|
| 422 |
|
|
end
|
| 423 |
348 |
julius |
// debug if test (l.nop 10)
|
| 424 |
|
|
if (`OR1200_TOP.`CPU_cpu.`CPU_ctrl.wb_insn == 32'h1500_000a) begin
|
| 425 |
6 |
julius |
$fdisplay(fgeneral, "%t: l.nop dbg_if_test", $time);
|
| 426 |
|
|
end
|
| 427 |
348 |
julius |
// simulation reports (l.nop 2)
|
| 428 |
|
|
if (`OR1200_TOP.`CPU_cpu.`CPU_ctrl.wb_insn == 32'h1500_0002) begin
|
| 429 |
6 |
julius |
get_gpr(3, r3);
|
| 430 |
348 |
julius |
$fdisplay(fgeneral, "%t: l.nop report (%h)", $time, r3);
|
| 431 |
|
|
end
|
| 432 |
|
|
// simulation printfs (l.nop 3)
|
| 433 |
|
|
if (`OR1200_TOP.`CPU_cpu.`CPU_ctrl.wb_insn == 32'h1500_0003) begin
|
| 434 |
|
|
get_gpr(3, r3);
|
| 435 |
6 |
julius |
$fdisplay(fgeneral, "%t: l.nop printf (%h)", $time, r3);
|
| 436 |
|
|
end
|
| 437 |
348 |
julius |
if (`OR1200_TOP.`CPU_cpu.`CPU_ctrl.wb_insn == 32'h1500_0004) begin
|
| 438 |
|
|
// simulation putc (l.nop 4)
|
| 439 |
|
|
get_gpr(3, r3);
|
| 440 |
|
|
$write("%c", r3);
|
| 441 |
|
|
$fdisplay(fgeneral, "%t: l.nop putc (%c)", $time, r3);
|
| 442 |
|
|
end
|
| 443 |
397 |
julius |
`ifdef OR1200_MONITOR_SPRS
|
| 444 |
|
|
if (`OR1200_TOP.`CPU_cpu.`CPU_sprs.spr_we)
|
| 445 |
6 |
julius |
$fdisplay(fspr, "%t: Write to SPR : [%h] <- %h", $time,
|
| 446 |
397 |
julius |
`OR1200_TOP.`CPU_cpu.`CPU_sprs.spr_addr,
|
| 447 |
348 |
julius |
`OR1200_TOP.`CPU_cpu.`CPU_sprs.spr_dat_o);
|
| 448 |
397 |
julius |
if ((|`OR1200_TOP.`CPU_cpu.`CPU_sprs.spr_cs) &
|
| 449 |
|
|
!`OR1200_TOP.`CPU_cpu.`CPU_sprs.spr_we)
|
| 450 |
6 |
julius |
$fdisplay(fspr, "%t: Read from SPR: [%h] -> %h", $time,
|
| 451 |
348 |
julius |
`OR1200_TOP.`CPU_cpu.`CPU_sprs.spr_addr,
|
| 452 |
|
|
`OR1200_TOP.`CPU_cpu.`CPU_sprs.to_wbmux);
|
| 453 |
397 |
julius |
`endif
|
| 454 |
6 |
julius |
end
|
| 455 |
|
|
|
| 456 |
348 |
julius |
|
| 457 |
415 |
julius |
`ifdef RAM_WB
|
| 458 |
|
|
`define RAM_WB_TOP `DUT_TOP.wb_ram_b3_0
|
| 459 |
|
|
task get_insn_from_wb_ram;
|
| 460 |
|
|
input [31:0] addr;
|
| 461 |
|
|
output [31:0] insn;
|
| 462 |
|
|
begin
|
| 463 |
|
|
insn = `RAM_WB_TOP.mem[addr[31:2]];
|
| 464 |
|
|
end
|
| 465 |
|
|
endtask // get_insn_from_wb_ram
|
| 466 |
|
|
`endif
|
| 467 |
|
|
|
| 468 |
348 |
julius |
`ifdef VERSATILE_SDRAM
|
| 469 |
415 |
julius |
`define SDRAM_TOP `TB_TOP.sdram0
|
| 470 |
348 |
julius |
// Bit selects to define the bank
|
| 471 |
|
|
// 32 MB part with 4 banks
|
| 472 |
|
|
`define SDRAM_BANK_SEL_BITS 24:23
|
| 473 |
|
|
`define SDRAM_WORD_SEL_TOP_BIT 22
|
| 474 |
|
|
// Gets instruction word from correct bank
|
| 475 |
|
|
task get_insn_from_sdram;
|
| 476 |
|
|
input [31:0] addr;
|
| 477 |
|
|
output [31:0] insn;
|
| 478 |
|
|
reg [`SDRAM_WORD_SEL_TOP_BIT-1:0] word_addr;
|
| 479 |
|
|
|
| 480 |
|
|
begin
|
| 481 |
|
|
word_addr = addr[`SDRAM_WORD_SEL_TOP_BIT:2];
|
| 482 |
|
|
if (addr[`SDRAM_BANK_SEL_BITS] == 2'b00)
|
| 483 |
|
|
begin
|
| 484 |
|
|
|
| 485 |
|
|
//$display("%t: get_insn_from_sdram bank0, word 0x%h, (%h and %h in SDRAM)", $time, word_addr, `SDRAM_TOP.Bank0[{word_addr,1'b0}], `SDRAM_TOP.Bank0[{word_addr,1'b1}]);
|
| 486 |
|
|
insn[15:0] = `SDRAM_TOP.Bank0[{word_addr,1'b1}];
|
| 487 |
|
|
insn[31:16] = `SDRAM_TOP.Bank0[{word_addr,1'b0}];
|
| 488 |
|
|
end
|
| 489 |
|
|
end
|
| 490 |
|
|
|
| 491 |
|
|
endtask // get_insn_from_sdram
|
| 492 |
|
|
`endif // `ifdef VERSATILE_SDRAM
|
| 493 |
|
|
|
| 494 |
|
|
`ifdef XILINX_DDR2
|
| 495 |
415 |
julius |
`define DDR2_TOP `TB_TOP.gen_cs[0]
|
| 496 |
348 |
julius |
// Gets instruction word from correct bank
|
| 497 |
|
|
task get_insn_from_xilinx_ddr2;
|
| 498 |
|
|
input [31:0] addr;
|
| 499 |
|
|
output [31:0] insn;
|
| 500 |
415 |
julius |
reg [16*8-1:0] ddr2_array_line0,ddr2_array_line1,ddr2_array_line2,
|
| 501 |
|
|
ddr2_array_line3;
|
| 502 |
348 |
julius |
integer word_in_line_num;
|
| 503 |
|
|
begin
|
| 504 |
415 |
julius |
// Get our 4 128-bit chunks (8 half-words in each!! Confused yet?),
|
| 505 |
|
|
// 16 words total
|
| 506 |
348 |
julius |
`DDR2_TOP.gen[0].u_mem0.memory_read(addr[28:27],addr[26:13],{addr[12:6],3'd0},ddr2_array_line0);
|
| 507 |
|
|
`DDR2_TOP.gen[1].u_mem0.memory_read(addr[28:27],addr[26:13],{addr[12:6],3'd0},ddr2_array_line1);
|
| 508 |
|
|
`DDR2_TOP.gen[2].u_mem0.memory_read(addr[28:27],addr[26:13],{addr[12:6],3'd0},ddr2_array_line2);
|
| 509 |
|
|
`DDR2_TOP.gen[3].u_mem0.memory_read(addr[28:27],addr[26:13],{addr[12:6],3'd0},ddr2_array_line3);
|
| 510 |
|
|
case (addr[5:2])
|
| 511 |
|
|
4'h0:
|
| 512 |
|
|
begin
|
| 513 |
|
|
insn[15:0] = ddr2_array_line0[15:0];
|
| 514 |
|
|
insn[31:16] = ddr2_array_line1[15:0];
|
| 515 |
|
|
end
|
| 516 |
|
|
4'h1:
|
| 517 |
|
|
begin
|
| 518 |
|
|
insn[15:0] = ddr2_array_line2[15:0];
|
| 519 |
|
|
insn[31:16] = ddr2_array_line3[15:0];
|
| 520 |
|
|
end
|
| 521 |
|
|
4'h2:
|
| 522 |
|
|
begin
|
| 523 |
|
|
insn[15:0] = ddr2_array_line0[31:16];
|
| 524 |
|
|
insn[31:16] = ddr2_array_line1[31:16];
|
| 525 |
|
|
end
|
| 526 |
|
|
4'h3:
|
| 527 |
|
|
begin
|
| 528 |
|
|
insn[15:0] = ddr2_array_line2[31:16];
|
| 529 |
|
|
insn[31:16] = ddr2_array_line3[31:16];
|
| 530 |
|
|
end
|
| 531 |
|
|
4'h4:
|
| 532 |
|
|
begin
|
| 533 |
|
|
insn[15:0] = ddr2_array_line0[47:32];
|
| 534 |
|
|
insn[31:16] = ddr2_array_line1[47:32];
|
| 535 |
|
|
end
|
| 536 |
|
|
4'h5:
|
| 537 |
|
|
begin
|
| 538 |
|
|
insn[15:0] = ddr2_array_line2[47:32];
|
| 539 |
|
|
insn[31:16] = ddr2_array_line3[47:32];
|
| 540 |
|
|
end
|
| 541 |
|
|
4'h6:
|
| 542 |
|
|
begin
|
| 543 |
|
|
insn[15:0] = ddr2_array_line0[63:48];
|
| 544 |
|
|
insn[31:16] = ddr2_array_line1[63:48];
|
| 545 |
|
|
end
|
| 546 |
|
|
4'h7:
|
| 547 |
|
|
begin
|
| 548 |
|
|
insn[15:0] = ddr2_array_line2[63:48];
|
| 549 |
|
|
insn[31:16] = ddr2_array_line3[63:48];
|
| 550 |
|
|
end
|
| 551 |
|
|
4'h8:
|
| 552 |
|
|
begin
|
| 553 |
|
|
insn[15:0] = ddr2_array_line0[79:64];
|
| 554 |
|
|
insn[31:16] = ddr2_array_line1[79:64];
|
| 555 |
|
|
end
|
| 556 |
|
|
4'h9:
|
| 557 |
|
|
begin
|
| 558 |
|
|
insn[15:0] = ddr2_array_line2[79:64];
|
| 559 |
|
|
insn[31:16] = ddr2_array_line3[79:64];
|
| 560 |
|
|
end
|
| 561 |
|
|
4'ha:
|
| 562 |
|
|
begin
|
| 563 |
|
|
insn[15:0] = ddr2_array_line0[95:80];
|
| 564 |
|
|
insn[31:16] = ddr2_array_line1[95:80];
|
| 565 |
|
|
end
|
| 566 |
|
|
4'hb:
|
| 567 |
|
|
begin
|
| 568 |
|
|
insn[15:0] = ddr2_array_line2[95:80];
|
| 569 |
|
|
insn[31:16] = ddr2_array_line3[95:80];
|
| 570 |
|
|
end
|
| 571 |
|
|
4'hc:
|
| 572 |
|
|
begin
|
| 573 |
|
|
insn[15:0] = ddr2_array_line0[111:96];
|
| 574 |
|
|
insn[31:16] = ddr2_array_line1[111:96];
|
| 575 |
|
|
end
|
| 576 |
|
|
4'hd:
|
| 577 |
|
|
begin
|
| 578 |
|
|
insn[15:0] = ddr2_array_line2[111:96];
|
| 579 |
|
|
insn[31:16] = ddr2_array_line3[111:96];
|
| 580 |
|
|
end
|
| 581 |
|
|
4'he:
|
| 582 |
|
|
begin
|
| 583 |
|
|
insn[15:0] = ddr2_array_line0[127:112];
|
| 584 |
|
|
insn[31:16] = ddr2_array_line1[127:112];
|
| 585 |
|
|
end
|
| 586 |
|
|
4'hf:
|
| 587 |
|
|
begin
|
| 588 |
|
|
insn[15:0] = ddr2_array_line2[127:112];
|
| 589 |
|
|
insn[31:16] = ddr2_array_line3[127:112];
|
| 590 |
|
|
end
|
| 591 |
|
|
endcase // case (addr[5:2])
|
| 592 |
|
|
end
|
| 593 |
|
|
endtask // get_insn_from_xilinx_ddr2
|
| 594 |
|
|
`endif
|
| 595 |
|
|
|
| 596 |
|
|
|
| 597 |
|
|
task get_insn_from_memory;
|
| 598 |
|
|
input [31:0] id_pc;
|
| 599 |
|
|
output [31:0] insn;
|
| 600 |
|
|
begin
|
| 601 |
|
|
// do a decode of which server we should look in
|
| 602 |
|
|
case (id_pc[31:28])
|
| 603 |
|
|
`ifdef VERSATILE_SDRAM
|
| 604 |
|
|
4'h0:
|
| 605 |
|
|
get_insn_from_sdram(id_pc, insn);
|
| 606 |
|
|
`endif
|
| 607 |
|
|
`ifdef XILINX_DDR2
|
| 608 |
|
|
4'h0:
|
| 609 |
|
|
get_insn_from_xilinx_ddr2(id_pc, insn);
|
| 610 |
415 |
julius |
`endif
|
| 611 |
|
|
`ifdef RAM_WB
|
| 612 |
|
|
4'h0:
|
| 613 |
|
|
get_insn_from_wb_ram(id_pc, insn);
|
| 614 |
|
|
`endif
|
| 615 |
348 |
julius |
4'hf:
|
| 616 |
|
|
// Flash isn't stored in a memory, it's an FSM so just skip/ignore
|
| 617 |
|
|
insn = `OR1200_TOP.`CPU_cpu.`CPU_ctrl.id_insn;
|
| 618 |
|
|
default:
|
| 619 |
|
|
begin
|
| 620 |
|
|
$fdisplay(fgeneral, "%t: Unknown memory server for address 0x%h", $time,id_pc);
|
| 621 |
|
|
insn = 32'hxxxxxxxx; // Unknown server
|
| 622 |
|
|
end
|
| 623 |
|
|
endcase // case (id_pc[31:28])
|
| 624 |
|
|
end
|
| 625 |
|
|
endtask // get_insn_from_memory
|
| 626 |
|
|
|
| 627 |
|
|
|
| 628 |
|
|
reg [31:0] mem_word;
|
| 629 |
|
|
reg [31:0] last_addr = 0;
|
| 630 |
|
|
reg [31:0] last_mem_word;
|
| 631 |
|
|
|
| 632 |
415 |
julius |
`ifdef MEM_COHERENCE_CHECK
|
| 633 |
|
|
`define MEM_COHERENCE_TRIGGER (`OR1200_TOP.`CPU_cpu.`CPU_ctrl.id_void === 1'b0)
|
| 634 |
|
|
|
| 635 |
348 |
julius |
`define INSN_TO_CHECK `OR1200_TOP.`CPU_cpu.`CPU_ctrl.id_insn
|
| 636 |
|
|
`define PC_TO_CHECK `OR1200_TOP.`CPU_cpu.`CPU_except.id_pc
|
| 637 |
|
|
|
| 638 |
|
|
// Check instruction in decode stage is what is in the RAM
|
| 639 |
|
|
always @(posedge `OR1200_TOP.`CPU_cpu.`CPU_ctrl.clk)
|
| 640 |
|
|
begin
|
| 641 |
415 |
julius |
if (`MEM_COHERENCE_TRIGGER)
|
| 642 |
348 |
julius |
begin
|
| 643 |
|
|
// Check if it's a new PC - will also get triggered if the
|
| 644 |
|
|
// instruction has changed since we last checked it
|
| 645 |
|
|
if ((`PC_TO_CHECK !== last_addr) ||
|
| 646 |
|
|
(last_mem_word != `INSN_TO_CHECK))
|
| 647 |
|
|
begin
|
| 648 |
|
|
// Decode stage not void, check instruction
|
| 649 |
|
|
// get PC
|
| 650 |
|
|
get_insn_from_memory(`PC_TO_CHECK, mem_word);
|
| 651 |
|
|
|
| 652 |
|
|
// Debugging output to prove it's doing something!
|
| 653 |
|
|
//$display("%t: Checking instruction for address 0x%h - memory had 0x%h, CPU had 0x%h", $time, `PC_TO_CHECK, mem_word, `INSN_TO_CHECK);
|
| 654 |
|
|
|
| 655 |
|
|
if (mem_word !== `INSN_TO_CHECK)
|
| 656 |
|
|
begin
|
| 657 |
|
|
$fdisplay(fgeneral, "%t: Instruction mismatch for address 0x%h - memory had 0x%h, CPU had 0x%h", $time, `PC_TO_CHECK, mem_word, `INSN_TO_CHECK);
|
| 658 |
|
|
#20
|
| 659 |
|
|
$finish;
|
| 660 |
|
|
end
|
| 661 |
|
|
last_addr = `PC_TO_CHECK;
|
| 662 |
|
|
last_mem_word = mem_word;
|
| 663 |
|
|
end // if (`PC_TO_CHECK !== last_addr)
|
| 664 |
|
|
end
|
| 665 |
|
|
end // always @ (posedge `OR1200_TOP.`CPU_cpu.`CPU_ctrl.clk)
|
| 666 |
|
|
|
| 667 |
415 |
julius |
`endif // `ifdef MEM_COHERENCE_CHECK
|
| 668 |
|
|
|
| 669 |
348 |
julius |
|
| 670 |
351 |
julius |
/////////////////////////////////////////////////////////////////////////
|
| 671 |
|
|
// Instruction decode task
|
| 672 |
|
|
/////////////////////////////////////////////////////////////////////////
|
| 673 |
348 |
julius |
|
| 674 |
351 |
julius |
|
| 675 |
|
|
`define OR32_OPCODE_POS 31:26
|
| 676 |
|
|
`define OR32_J_BR_IMM_POS 25:0
|
| 677 |
|
|
`define OR32_RD_POS 25:21
|
| 678 |
|
|
`define OR32_RA_POS 20:16
|
| 679 |
|
|
`define OR32_RB_POS 15:11
|
| 680 |
|
|
`define OR32_ALU_OP_POS 3:0
|
| 681 |
348 |
julius |
|
| 682 |
351 |
julius |
`define OR32_SHROT_OP_POS 7:6
|
| 683 |
|
|
`define OR32_SHROTI_IMM_POS 5:0
|
| 684 |
|
|
`define OR32_SF_OP 25:21
|
| 685 |
|
|
|
| 686 |
|
|
`define OR32_XSYNC_OP_POS 25:21
|
| 687 |
|
|
|
| 688 |
|
|
|
| 689 |
|
|
// Switch between outputting to execution file or STD out for instruction
|
| 690 |
|
|
// decoding task.
|
| 691 |
|
|
//`define PRINT_OP_WRITE $write(
|
| 692 |
|
|
`define PRINT_OP_WRITE $fwrite(fexe,
|
| 693 |
|
|
|
| 694 |
|
|
task or1200_print_op;
|
| 695 |
|
|
input [31:0] insn;
|
| 696 |
|
|
|
| 697 |
|
|
reg [5:0] opcode;
|
| 698 |
|
|
|
| 699 |
|
|
reg [25:0] j_imm;
|
| 700 |
|
|
reg [25:0] br_imm;
|
| 701 |
|
|
|
| 702 |
|
|
reg [4:0] rD_num, rA_num, rB_num;
|
| 703 |
|
|
reg [31:0] rA_val, rB_val;
|
| 704 |
|
|
reg [15:0] imm_16bit;
|
| 705 |
|
|
reg [10:0] imm_split16bit;
|
| 706 |
|
|
|
| 707 |
|
|
reg [3:0] alu_op;
|
| 708 |
|
|
reg [1:0] shrot_op;
|
| 709 |
|
|
|
| 710 |
|
|
reg [5:0] shroti_imm;
|
| 711 |
|
|
|
| 712 |
|
|
reg [5:0] sf_op;
|
| 713 |
|
|
|
| 714 |
|
|
reg [5:0] xsync_op;
|
| 715 |
|
|
|
| 716 |
|
|
begin
|
| 717 |
|
|
// Instruction opcode
|
| 718 |
|
|
opcode = insn[`OR32_OPCODE_POS];
|
| 719 |
|
|
// Immediates for jump or branch instructions
|
| 720 |
|
|
j_imm = insn[`OR32_J_BR_IMM_POS];
|
| 721 |
|
|
br_imm = insn[`OR32_J_BR_IMM_POS];
|
| 722 |
|
|
// Register numbers (D, A and B)
|
| 723 |
|
|
rD_num = insn[`OR32_RD_POS];
|
| 724 |
|
|
rA_num = insn[`OR32_RA_POS];
|
| 725 |
|
|
rB_num = insn[`OR32_RB_POS];
|
| 726 |
|
|
// Bottom 16 bits when used as immediates in various instructions
|
| 727 |
|
|
imm_16bit = insn[15:0];
|
| 728 |
|
|
// Bottom 11 bits used as immediates for l.sX instructions
|
| 729 |
|
|
|
| 730 |
|
|
// Split 16-bit immediate for l.mtspr/l.sX instructions
|
| 731 |
|
|
imm_split16bit = {insn[25:21],insn[10:0]};
|
| 732 |
|
|
// ALU op for ALU instructions
|
| 733 |
|
|
alu_op = insn[`OR32_ALU_OP_POS];
|
| 734 |
|
|
// Shift-rotate op for SHROT ALU instructions
|
| 735 |
|
|
shrot_op = insn[`OR32_SHROT_OP_POS];
|
| 736 |
|
|
shroti_imm = insn[`OR32_SHROTI_IMM_POS];
|
| 737 |
|
|
|
| 738 |
|
|
// Set flag op
|
| 739 |
|
|
sf_op = insn[`OR32_SF_OP];
|
| 740 |
|
|
|
| 741 |
|
|
// Xsync/syscall/trap opcode
|
| 742 |
|
|
xsync_op = insn[`OR32_XSYNC_OP_POS];
|
| 743 |
|
|
|
| 744 |
|
|
case (opcode)
|
| 745 |
|
|
`OR1200_OR32_J:
|
| 746 |
|
|
begin
|
| 747 |
|
|
`PRINT_OP_WRITE"l.j 0x%h", {j_imm,2'b00});
|
| 748 |
|
|
end
|
| 749 |
|
|
|
| 750 |
|
|
`OR1200_OR32_JAL:
|
| 751 |
|
|
begin
|
| 752 |
|
|
`PRINT_OP_WRITE"l.jal 0x%h", {j_imm,2'b00});
|
| 753 |
|
|
end
|
| 754 |
|
|
|
| 755 |
|
|
`OR1200_OR32_BNF:
|
| 756 |
|
|
begin
|
| 757 |
|
|
`PRINT_OP_WRITE"l.bnf 0x%h", {br_imm,2'b00});
|
| 758 |
|
|
end
|
| 759 |
|
|
|
| 760 |
|
|
`OR1200_OR32_BF:
|
| 761 |
|
|
begin
|
| 762 |
|
|
`PRINT_OP_WRITE"l.bf 0x%h", {br_imm,2'b00});
|
| 763 |
|
|
end
|
| 764 |
|
|
|
| 765 |
|
|
`OR1200_OR32_RFE:
|
| 766 |
|
|
begin
|
| 767 |
|
|
`PRINT_OP_WRITE"l.rfe");
|
| 768 |
|
|
end
|
| 769 |
|
|
|
| 770 |
|
|
`OR1200_OR32_JR:
|
| 771 |
|
|
begin
|
| 772 |
|
|
`PRINT_OP_WRITE"l.jr r%0d",rB_num);
|
| 773 |
|
|
end
|
| 774 |
|
|
|
| 775 |
|
|
`OR1200_OR32_JALR:
|
| 776 |
|
|
begin
|
| 777 |
|
|
`PRINT_OP_WRITE"l.jalr r%0d",rB_num);
|
| 778 |
|
|
end
|
| 779 |
|
|
|
| 780 |
|
|
`OR1200_OR32_LWZ:
|
| 781 |
|
|
begin
|
| 782 |
|
|
`PRINT_OP_WRITE"l.lwz r%0d,0x%0h(r%0d)",rD_num,imm_16bit,rA_num);
|
| 783 |
|
|
end
|
| 784 |
|
|
|
| 785 |
|
|
`OR1200_OR32_LBZ:
|
| 786 |
|
|
begin
|
| 787 |
|
|
`PRINT_OP_WRITE"l.lbz r%0d,0x%0h(r%0d)",rD_num,imm_16bit,rA_num);
|
| 788 |
|
|
end
|
| 789 |
|
|
|
| 790 |
|
|
`OR1200_OR32_LBS:
|
| 791 |
|
|
begin
|
| 792 |
|
|
`PRINT_OP_WRITE"l.lbs r%0d,0x%0h(r%0d)",rD_num,imm_16bit,rA_num);
|
| 793 |
|
|
end
|
| 794 |
|
|
|
| 795 |
|
|
`OR1200_OR32_LHZ:
|
| 796 |
|
|
begin
|
| 797 |
|
|
`PRINT_OP_WRITE"l.lhz r%0d,0x%0h(r%0d)",rD_num,imm_16bit,rA_num);
|
| 798 |
|
|
end
|
| 799 |
|
|
|
| 800 |
|
|
`OR1200_OR32_LHS:
|
| 801 |
|
|
begin
|
| 802 |
|
|
`PRINT_OP_WRITE"l.lhs r%0d,0x%0h(r%0d)",rD_num,imm_16bit,rA_num);
|
| 803 |
|
|
end
|
| 804 |
|
|
|
| 805 |
|
|
`OR1200_OR32_SW:
|
| 806 |
|
|
begin
|
| 807 |
|
|
`PRINT_OP_WRITE"l.sw 0x%0h(r%0d),r%0d",imm_split16bit,rA_num,rB_num);
|
| 808 |
|
|
end
|
| 809 |
|
|
|
| 810 |
|
|
`OR1200_OR32_SB:
|
| 811 |
|
|
begin
|
| 812 |
|
|
`PRINT_OP_WRITE"l.sb 0x%0h(r%0d),r%0d",imm_split16bit,rA_num,rB_num);
|
| 813 |
|
|
end
|
| 814 |
|
|
|
| 815 |
|
|
`OR1200_OR32_SH:
|
| 816 |
|
|
begin
|
| 817 |
|
|
`PRINT_OP_WRITE"l.sh 0x%0h(r%0d),r%0d",imm_split16bit,rA_num,rB_num);
|
| 818 |
|
|
end
|
| 819 |
|
|
|
| 820 |
|
|
`OR1200_OR32_MFSPR:
|
| 821 |
|
|
begin
|
| 822 |
|
|
`PRINT_OP_WRITE"l.mfspr r%0d,r%0d,0x%h",rD_num,rA_num,imm_16bit,);
|
| 823 |
|
|
end
|
| 824 |
|
|
|
| 825 |
|
|
`OR1200_OR32_MTSPR:
|
| 826 |
|
|
begin
|
| 827 |
|
|
`PRINT_OP_WRITE"l.mtspr r%0d,r%0d,0x%h",rA_num,rB_num,imm_split16bit);
|
| 828 |
|
|
end
|
| 829 |
|
|
|
| 830 |
|
|
`OR1200_OR32_MOVHI:
|
| 831 |
|
|
begin
|
| 832 |
|
|
if (!insn[16])
|
| 833 |
|
|
`PRINT_OP_WRITE"l.movhi r%0d,0x%h",rD_num,imm_16bit);
|
| 834 |
|
|
else
|
| 835 |
|
|
`PRINT_OP_WRITE"l.macrc r%0d",rD_num);
|
| 836 |
|
|
end
|
| 837 |
|
|
|
| 838 |
|
|
`OR1200_OR32_ADDI:
|
| 839 |
|
|
begin
|
| 840 |
|
|
`PRINT_OP_WRITE"l.addi r%0d,r%0d,0x%h",rD_num,rA_num,imm_16bit);
|
| 841 |
|
|
end
|
| 842 |
|
|
|
| 843 |
|
|
`OR1200_OR32_ADDIC:
|
| 844 |
|
|
begin
|
| 845 |
|
|
`PRINT_OP_WRITE"l.addic r%0d,r%0d,0x%h",rD_num,rA_num,imm_16bit);
|
| 846 |
|
|
end
|
| 847 |
|
|
|
| 848 |
|
|
`OR1200_OR32_ANDI:
|
| 849 |
|
|
begin
|
| 850 |
|
|
`PRINT_OP_WRITE"l.andi r%0d,r%0d,0x%h",rD_num,rA_num,imm_16bit);
|
| 851 |
|
|
end
|
| 852 |
|
|
|
| 853 |
|
|
`OR1200_OR32_ORI:
|
| 854 |
|
|
begin
|
| 855 |
|
|
`PRINT_OP_WRITE"l.ori r%0d,r%0d,0x%h",rD_num,rA_num,imm_16bit);
|
| 856 |
|
|
end
|
| 857 |
|
|
|
| 858 |
|
|
`OR1200_OR32_XORI:
|
| 859 |
|
|
begin
|
| 860 |
|
|
`PRINT_OP_WRITE"l.xori r%0d,r%0d,0x%h",rD_num,rA_num,imm_16bit);
|
| 861 |
|
|
end
|
| 862 |
|
|
|
| 863 |
|
|
`OR1200_OR32_MULI:
|
| 864 |
|
|
begin
|
| 865 |
|
|
`PRINT_OP_WRITE"l.muli r%0d,r%0d,0x%h",rD_num,rA_num,imm_16bit);
|
| 866 |
|
|
end
|
| 867 |
|
|
|
| 868 |
|
|
`OR1200_OR32_ALU:
|
| 869 |
|
|
begin
|
| 870 |
|
|
case(alu_op)
|
| 871 |
|
|
`OR1200_ALUOP_ADD:
|
| 872 |
|
|
`PRINT_OP_WRITE"l.add ");
|
| 873 |
|
|
`OR1200_ALUOP_ADDC:
|
| 874 |
|
|
`PRINT_OP_WRITE"l.addc ");
|
| 875 |
|
|
`OR1200_ALUOP_SUB:
|
| 876 |
|
|
`PRINT_OP_WRITE"l.sub ");
|
| 877 |
|
|
`OR1200_ALUOP_AND:
|
| 878 |
|
|
`PRINT_OP_WRITE"l.and ");
|
| 879 |
|
|
`OR1200_ALUOP_OR:
|
| 880 |
|
|
`PRINT_OP_WRITE"l.or ");
|
| 881 |
|
|
`OR1200_ALUOP_XOR:
|
| 882 |
|
|
`PRINT_OP_WRITE"l.xor ");
|
| 883 |
|
|
`OR1200_ALUOP_MUL:
|
| 884 |
|
|
`PRINT_OP_WRITE"l.mul ");
|
| 885 |
|
|
`OR1200_ALUOP_SHROT:
|
| 886 |
|
|
begin
|
| 887 |
|
|
case(shrot_op)
|
| 888 |
|
|
`OR1200_SHROTOP_SLL:
|
| 889 |
|
|
`PRINT_OP_WRITE"l.sll ");
|
| 890 |
|
|
`OR1200_SHROTOP_SRL:
|
| 891 |
|
|
`PRINT_OP_WRITE"l.srl ");
|
| 892 |
|
|
`OR1200_SHROTOP_SRA:
|
| 893 |
|
|
`PRINT_OP_WRITE"l.sra ");
|
| 894 |
|
|
`OR1200_SHROTOP_ROR:
|
| 895 |
|
|
`PRINT_OP_WRITE"l.ror ");
|
| 896 |
|
|
endcase // case (shrot_op)
|
| 897 |
|
|
end
|
| 898 |
|
|
`OR1200_ALUOP_DIV:
|
| 899 |
|
|
`PRINT_OP_WRITE"l.div ");
|
| 900 |
|
|
`OR1200_ALUOP_DIVU:
|
| 901 |
|
|
`PRINT_OP_WRITE"l.divu ");
|
| 902 |
|
|
`OR1200_ALUOP_CMOV:
|
| 903 |
|
|
`PRINT_OP_WRITE"l.cmov ");
|
| 904 |
|
|
endcase // case (alu_op)
|
| 905 |
|
|
`PRINT_OP_WRITE"r%0d,r%0d,r%0d",rD_num,rA_num,rB_num);
|
| 906 |
|
|
end
|
| 907 |
|
|
|
| 908 |
|
|
`OR1200_OR32_SH_ROTI:
|
| 909 |
|
|
begin
|
| 910 |
|
|
case(shrot_op)
|
| 911 |
|
|
`OR1200_SHROTOP_SLL:
|
| 912 |
|
|
`PRINT_OP_WRITE"l.slli ");
|
| 913 |
|
|
`OR1200_SHROTOP_SRL:
|
| 914 |
|
|
`PRINT_OP_WRITE"l.srli ");
|
| 915 |
|
|
`OR1200_SHROTOP_SRA:
|
| 916 |
|
|
`PRINT_OP_WRITE"l.srai ");
|
| 917 |
|
|
`OR1200_SHROTOP_ROR:
|
| 918 |
|
|
`PRINT_OP_WRITE"l.rori ");
|
| 919 |
|
|
endcase // case (shrot_op)
|
| 920 |
|
|
`PRINT_OP_WRITE"r%0d,r%0d,0x%h",rD_num,rA_num,shroti_imm);
|
| 921 |
|
|
end
|
| 922 |
|
|
|
| 923 |
|
|
`OR1200_OR32_SFXXI:
|
| 924 |
|
|
begin
|
| 925 |
|
|
case(sf_op[2:0])
|
| 926 |
|
|
`OR1200_COP_SFEQ:
|
| 927 |
|
|
`PRINT_OP_WRITE"l.sfeqi ");
|
| 928 |
|
|
`OR1200_COP_SFNE:
|
| 929 |
|
|
`PRINT_OP_WRITE"l.sfnei ");
|
| 930 |
|
|
`OR1200_COP_SFGT:
|
| 931 |
|
|
begin
|
| 932 |
|
|
if (sf_op[`OR1200_SIGNED_COMPARE])
|
| 933 |
|
|
`PRINT_OP_WRITE"l.sfgtsi ");
|
| 934 |
|
|
else
|
| 935 |
|
|
`PRINT_OP_WRITE"l.sfgtui ");
|
| 936 |
|
|
end
|
| 937 |
|
|
`OR1200_COP_SFGE:
|
| 938 |
|
|
begin
|
| 939 |
|
|
if (sf_op[`OR1200_SIGNED_COMPARE])
|
| 940 |
|
|
`PRINT_OP_WRITE"l.sfgesi ");
|
| 941 |
|
|
else
|
| 942 |
|
|
`PRINT_OP_WRITE"l.sfgeui ");
|
| 943 |
|
|
end
|
| 944 |
|
|
`OR1200_COP_SFLT:
|
| 945 |
|
|
begin
|
| 946 |
|
|
if (sf_op[`OR1200_SIGNED_COMPARE])
|
| 947 |
|
|
`PRINT_OP_WRITE"l.sfltsi ");
|
| 948 |
|
|
else
|
| 949 |
|
|
`PRINT_OP_WRITE"l.sfltui ");
|
| 950 |
|
|
end
|
| 951 |
|
|
`OR1200_COP_SFLE:
|
| 952 |
|
|
begin
|
| 953 |
|
|
if (sf_op[`OR1200_SIGNED_COMPARE])
|
| 954 |
|
|
`PRINT_OP_WRITE"l.sflesi ");
|
| 955 |
|
|
else
|
| 956 |
|
|
`PRINT_OP_WRITE"l.sfleui ");
|
| 957 |
|
|
end
|
| 958 |
|
|
endcase // case (sf_op[2:0])
|
| 959 |
|
|
|
| 960 |
|
|
`PRINT_OP_WRITE"r%0d,0x%h",rA_num, imm_16bit);
|
| 961 |
|
|
|
| 962 |
|
|
end // case: `OR1200_OR32_SFXXI
|
| 963 |
|
|
|
| 964 |
|
|
`OR1200_OR32_SFXX:
|
| 965 |
|
|
begin
|
| 966 |
|
|
case(sf_op[2:0])
|
| 967 |
|
|
`OR1200_COP_SFEQ:
|
| 968 |
|
|
`PRINT_OP_WRITE"l.sfeq ");
|
| 969 |
|
|
`OR1200_COP_SFNE:
|
| 970 |
|
|
`PRINT_OP_WRITE"l.sfne ");
|
| 971 |
|
|
`OR1200_COP_SFGT:
|
| 972 |
|
|
begin
|
| 973 |
|
|
if (sf_op[`OR1200_SIGNED_COMPARE])
|
| 974 |
|
|
`PRINT_OP_WRITE"l.sfgts ");
|
| 975 |
|
|
else
|
| 976 |
|
|
`PRINT_OP_WRITE"l.sfgtu ");
|
| 977 |
|
|
end
|
| 978 |
|
|
`OR1200_COP_SFGE:
|
| 979 |
|
|
begin
|
| 980 |
|
|
if (sf_op[`OR1200_SIGNED_COMPARE])
|
| 981 |
|
|
`PRINT_OP_WRITE"l.sfges ");
|
| 982 |
|
|
else
|
| 983 |
|
|
`PRINT_OP_WRITE"l.sfgeu ");
|
| 984 |
|
|
end
|
| 985 |
|
|
`OR1200_COP_SFLT:
|
| 986 |
|
|
begin
|
| 987 |
|
|
if (sf_op[`OR1200_SIGNED_COMPARE])
|
| 988 |
|
|
`PRINT_OP_WRITE"l.sflts ");
|
| 989 |
|
|
else
|
| 990 |
|
|
`PRINT_OP_WRITE"l.sfltu ");
|
| 991 |
|
|
end
|
| 992 |
|
|
`OR1200_COP_SFLE:
|
| 993 |
|
|
begin
|
| 994 |
|
|
if (sf_op[`OR1200_SIGNED_COMPARE])
|
| 995 |
|
|
`PRINT_OP_WRITE"l.sfles ");
|
| 996 |
|
|
else
|
| 997 |
|
|
`PRINT_OP_WRITE"l.sfleu ");
|
| 998 |
|
|
end
|
| 999 |
|
|
|
| 1000 |
|
|
endcase // case (sf_op[2:0])
|
| 1001 |
|
|
|
| 1002 |
|
|
`PRINT_OP_WRITE"r%0d,r%0d",rA_num, rB_num);
|
| 1003 |
|
|
|
| 1004 |
|
|
end
|
| 1005 |
|
|
|
| 1006 |
|
|
`OR1200_OR32_MACI:
|
| 1007 |
|
|
begin
|
| 1008 |
|
|
`PRINT_OP_WRITE"l.maci r%0d,0x%h",rA_num,imm_16bit);
|
| 1009 |
|
|
end
|
| 1010 |
|
|
|
| 1011 |
|
|
`OR1200_OR32_MACMSB:
|
| 1012 |
|
|
begin
|
| 1013 |
|
|
if(insn[3:0] == 4'h1)
|
| 1014 |
|
|
`PRINT_OP_WRITE"l.mac ");
|
| 1015 |
|
|
else if(insn[3:0] == 4'h2)
|
| 1016 |
|
|
`PRINT_OP_WRITE"l.msb ");
|
| 1017 |
|
|
|
| 1018 |
|
|
`PRINT_OP_WRITE"r%0d,r%0d",rA_num,rB_num);
|
| 1019 |
|
|
end
|
| 1020 |
|
|
|
| 1021 |
|
|
`OR1200_OR32_NOP:
|
| 1022 |
|
|
begin
|
| 1023 |
|
|
`PRINT_OP_WRITE"l.nop 0x%0h",imm_16bit);
|
| 1024 |
|
|
end
|
| 1025 |
|
|
|
| 1026 |
|
|
`OR1200_OR32_XSYNC:
|
| 1027 |
|
|
begin
|
| 1028 |
|
|
case (xsync_op)
|
| 1029 |
|
|
5'd0:
|
| 1030 |
|
|
`PRINT_OP_WRITE"l.sys 0x%h",imm_16bit);
|
| 1031 |
|
|
5'd8:
|
| 1032 |
|
|
`PRINT_OP_WRITE"l.trap 0x%h",imm_16bit);
|
| 1033 |
|
|
5'd16:
|
| 1034 |
|
|
`PRINT_OP_WRITE"l.msync");
|
| 1035 |
|
|
5'd20:
|
| 1036 |
|
|
`PRINT_OP_WRITE"l.psync");
|
| 1037 |
|
|
5'd24:
|
| 1038 |
|
|
`PRINT_OP_WRITE"l.csync");
|
| 1039 |
|
|
default:
|
| 1040 |
|
|
begin
|
| 1041 |
|
|
$display("%t: Instruction with opcode 0x%h has bad specific type information: 0x%h",$time,opcode,insn);
|
| 1042 |
|
|
`PRINT_OP_WRITE"%t: Instruction with opcode 0x%h has has bad specific type information: 0x%h",$time,opcode,insn);
|
| 1043 |
|
|
end
|
| 1044 |
|
|
endcase // case (xsync_op)
|
| 1045 |
|
|
end
|
| 1046 |
|
|
|
| 1047 |
|
|
default:
|
| 1048 |
|
|
begin
|
| 1049 |
|
|
$display("%t: Unknown opcode 0x%h",$time,opcode);
|
| 1050 |
|
|
`PRINT_OP_WRITE"%t: Unknown opcode 0x%h",$time,opcode);
|
| 1051 |
|
|
end
|
| 1052 |
|
|
|
| 1053 |
|
|
endcase // case (opcode)
|
| 1054 |
|
|
|
| 1055 |
|
|
end
|
| 1056 |
|
|
endtask // or1200_print_op
|
| 1057 |
|
|
|
| 1058 |
|
|
|
| 1059 |
|
|
|
| 1060 |
6 |
julius |
endmodule
|
