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initial commit. Non-working due to newly added MEM backpressure signal

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Brendan Haines 2020-09-27 16:04:16 -06:00
commit 63ed8ace80
8 changed files with 1315 additions and 0 deletions
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1
.gitignore vendored Normal file
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build

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Makefile Normal file
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###########################################################################
## Xilinx ISE Makefile
##
## To the extent possible under law, the author(s) have dedicated all copyright
## and related and neighboring rights to this software to the public domain
## worldwide. This software is distributed without any warranty.
###########################################################################
include project.cfg
###########################################################################
# Default values
###########################################################################
ifndef XILINX
$(error XILINX must be defined)
endif
ifndef PROJECT
$(error PROJECT must be defined)
endif
ifndef TARGET_PART
$(error TARGET_PART must be defined)
endif
TOPLEVEL ?= $(PROJECT)
CONSTRAINTS ?= $(PROJECT).ucf
BITFILE ?= build/$(PROJECT).bit
COMMON_OPTS ?= -intstyle xflow
XST_OPTS ?=
NGDBUILD_OPTS ?=
MAP_OPTS ?=
PAR_OPTS ?=
BITGEN_OPTS ?=
TRACE_OPTS ?=
FUSE_OPTS ?= -incremental
PROGRAMMER ?= none
IMPACT_OPTS ?= -batch impact.cmd
DJTG_EXE ?= djtgcfg
DJTG_DEVICE ?= DJTG_DEVICE-NOT-SET
DJTG_INDEX ?= 0
XC3SPROG_EXE ?= xc3sprog
XC3SPROG_CABLE ?= none
XC3SPROG_OPTS ?=
###########################################################################
# Internal variables, platform-specific definitions, and macros
###########################################################################
ifeq ($(OS),Windows_NT)
XILINX := $(shell cygpath -m $(XILINX))
CYG_XILINX := $(shell cygpath $(XILINX))
EXE := .exe
XILINX_PLATFORM ?= nt64
PATH := $(PATH):$(CYG_XILINX)/bin/$(XILINX_PLATFORM)
else
EXE :=
XILINX_PLATFORM ?= lin64
PATH := $(PATH):$(XILINX)/bin/$(XILINX_PLATFORM)
endif
TEST_NAMES = $(foreach file,$(VTEST) $(VHDTEST),$(basename $(file)))
TEST_EXES = $(foreach test,$(TEST_NAMES),build/isim_$(test)$(EXE))
RUN = @echo -ne "\n\n\e[1;33m======== $(1) ========\e[m\n\n"; \
cd build && $(XILINX)/bin/$(XILINX_PLATFORM)/$(1)
# isim executables don't work without this
export XILINX
###########################################################################
# Default build
###########################################################################
default: $(BITFILE)
clean:
rm -rf build
build/$(PROJECT).prj: project.cfg
@echo "Updating $@"
@mkdir -p build
@rm -f $@
@$(foreach file,$(VSOURCE),echo "verilog work \"../$(file)\"" >> $@;)
@$(foreach file,$(VHDSOURCE),echo "vhdl work \"../$(file)\"" >> $@;)
build/$(PROJECT)_sim.prj: build/$(PROJECT).prj
@cp build/$(PROJECT).prj $@
@$(foreach file,$(VTEST),echo "verilog work \"../$(file)\"" >> $@;)
@$(foreach file,$(VHDTEST),echo "vhdl work \"../$(file)\"" >> $@;)
@echo "verilog work $(XILINX)/verilog/src/glbl.v" >> $@
build/$(PROJECT).scr: project.cfg
@echo "Updating $@"
@mkdir -p build
@rm -f $@
@echo "run" \
"-ifn $(PROJECT).prj" \
"-ofn $(PROJECT).ngc" \
"-ifmt mixed" \
"$(XST_OPTS)" \
"-top $(TOPLEVEL)" \
"-ofmt NGC" \
"-p $(TARGET_PART)" \
> build/$(PROJECT).scr
$(BITFILE): project.cfg $(VSOURCE) $(CONSTRAINTS) build/$(PROJECT).prj build/$(PROJECT).scr
@mkdir -p build
$(call RUN,xst) $(COMMON_OPTS) \
-ifn $(PROJECT).scr
$(call RUN,ngdbuild) $(COMMON_OPTS) $(NGDBUILD_OPTS) \
-p $(TARGET_PART) -uc ../$(CONSTRAINTS) \
$(PROJECT).ngc $(PROJECT).ngd
$(call RUN,map) $(COMMON_OPTS) $(MAP_OPTS) \
-p $(TARGET_PART) \
-w $(PROJECT).ngd -o $(PROJECT).map.ncd $(PROJECT).pcf
$(call RUN,par) $(COMMON_OPTS) $(PAR_OPTS) \
-w $(PROJECT).map.ncd $(PROJECT).ncd $(PROJECT).pcf
$(call RUN,bitgen) $(COMMON_OPTS) $(BITGEN_OPTS) \
-w $(PROJECT).ncd $(PROJECT).bit
@echo -ne "\e[1;32m======== OK ========\e[m\n"
###########################################################################
# Testing (work in progress)
###########################################################################
trace: project.cfg $(BITFILE)
$(call RUN,trce) $(COMMON_OPTS) $(TRACE_OPTS) \
$(PROJECT).ncd $(PROJECT).pcf
test: $(TEST_EXES)
build/isim_%$(EXE): build/$(PROJECT)_sim.prj $(VSOURCE) $(VHDSOURCE) $(VTEST) $(VHDTEST)
$(call RUN,fuse) $(COMMON_OPTS) $(FUSE_OPTS) \
-prj $(PROJECT)_sim.prj \
-o isim_$*$(EXE) \
work.$* work.glbl
isim: build/isim_$(TB)$(EXE)
@grep --no-filename --no-messages 'ISIM:' $(TB).{v,vhd} | cut -d: -f2 > build/isim_$(TB).cmd
@echo "run all" >> build/isim_$(TB).cmd
cd build ; ./isim_$(TB)$(EXE) -tclbatch isim_$(TB).cmd
isimgui: build/isim_$(TB)$(EXE)
@grep --no-filename --no-messages 'ISIM:' $(TB).{v,vhd} | cut -d: -f2 > build/isim_$(TB).cmd
@echo "run all" >> build/isim_$(TB).cmd
cd build ; ./isim_$(TB)$(EXE) -gui -tclbatch isim_$(TB).cmd
###########################################################################
# Programming
###########################################################################
ifeq ($(PROGRAMMER), impact)
prog: $(BITFILE)
$(XILINX)/bin/$(XILINX_PLATFORM)/impact $(IMPACT_OPTS)
endif
ifeq ($(PROGRAMMER), digilent)
prog: $(BITFILE)
$(DJTG_EXE) prog -d $(DJTG_DEVICE) -i $(DJTG_INDEX) -f $(BITFILE)
endif
ifeq ($(PROGRAMMER), xc3sprog)
prog: $(BITFILE)
$(XC3SPROG_EXE) -c $(XC3SPROG_CABLE) $(XC3SPROG_OPTS) $(BITFILE)
endif
ifeq ($(PROGRAMMER), none)
prog:
$(error PROGRAMMER must be set to use 'make prog')
endif
###########################################################################
# vim: set filetype=make: #

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module core(
input clk,
input reset,
output dummy_out,
output reg [31:0] mem_inst_addr,
input [31:0] mem_inst_data,
output reg [31:0] mem_data_addr,
output reg [31:0] mem_data_wdata,
input [31:0] mem_data_rdata,
output reg mem_data_en,
output reg mem_data_we,
input mem_data_valid,
input mem_data_done
);
// Register File
reg [31:0] regfile [0:31];
initial regfile[0] = 32'h00000000;
// Registers
reg [31:0] r_if_pc = 0, r_id_pc, r_ex_pc, r_mem_pc, r_wb_pc;
reg r_id_stall, r_ex_stall, r_mem_stall, r_wb_stall;
reg [31:0] r_id_inst, r_ex_inst, r_mem_inst, r_wb_inst;
reg [4:0] r_ex_rd, r_mem_rd, r_wb_rd;
reg r_ex_alu_seed;
reg [2:0] r_ex_aluop;
reg [31:0] r_ex_s1, r_ex_s2, r_mem_s1, r_mem_s2;
reg [31:0] r_mem_alu_out, r_wb_alu_out;
reg r_mem_alu_zero;
reg r_ex_jump;
// IF
reg s_if_halt;
reg [31:0] s_if_next_pc;
reg [31:0] s_if_inst;
reg s_if_stall;
always @(*) begin
s_if_halt = 0;
if (r_ex_jump) begin
s_if_next_pc = s_ex_alu_out;
s_if_stall = 1'b1;
end else begin
s_if_next_pc = r_if_pc + 4;
s_if_stall = 1'b0;
end
mem_inst_addr = r_if_pc;
s_if_inst = mem_inst_data;
end
// ID
reg s_id_halt;
reg [6:0] s_id_opcode;
reg [2:0] s_id_funct3;
reg [6:0] s_id_funct7;
reg [4:0] s_id_rd, s_id_rs1, s_id_rs2;
reg [31:0] s_id_immed_itype, s_id_immed_stype, s_id_immed_utype, s_id_immed_btype, s_id_immed_jtype;
reg [31:0] s_id_s1, s_id_s2;
reg [2:0] s_id_aluop;
reg s_id_alu_seed;
reg s_id_invalid;
reg s_id_jump, s_id_branch;
// RV32I / RV64I / RV32M
localparam OP_LUI = 7'b0110111,
OP_AUIPC = 7'b0010111,
OP_JAL = 7'b1101111,
OP_JALR = 7'b1100111,
OP_BRANCH = 7'b1100011,
OP_LOAD = 7'b0000011,
OP_STORE = 7'b0100011,
OP_IMM = 7'b0010011,
OP_ALU = 7'b0110011,
OP_FENCE = 7'b0001111,
OP_SYSTEM = 7'b1110011;
// RV64M
// localparam OP_???????? = 7'b0111011;
// RV32A / RV64A
// localparam OP_ATOMIC = 7'b0101111;
// TODO: add opcodes for other extensions
// ALU OPCODES
localparam ALUOP_ADD = 0,
ALUOP_XOR = 1,
ALUOP_OR = 2,
ALUOP_AND = 3,
ALUOP_SL = 4,
ALUOP_SR = 5,
ALUOP_SLT = 6,
ALUOP_SLTU = 7;
always @(*) begin
s_id_halt = 0;
s_id_invalid = 0;
s_id_opcode = r_id_inst[6:0];
s_id_rd = r_id_inst[11:7];
s_id_rs1 = r_id_inst[19:15];
s_id_rs2 = r_id_inst[24:20];
s_id_funct3 = r_id_inst[14:12];
s_id_funct7 = r_id_inst[31:25];
s_id_immed_itype = {{20{r_id_inst[31]}}, r_id_inst[31:20]};
s_id_immed_stype = {{20{r_id_inst[31]}}, r_id_inst[31:25], r_id_inst[11:7]};
s_id_immed_utype = {r_id_inst[31:12], 12'b0};
s_id_immed_btype = {{19{r_id_inst[31]}}, r_id_inst[31], r_id_inst[7], r_id_inst[30:25], r_id_inst[11:8], 1'b0};
s_id_immed_jtype = {{11{r_id_inst[31]}}, r_id_inst[31], r_id_inst[19:12], r_id_inst[20], r_id_inst[30:21], 1'b0};
case (s_id_opcode)
OP_LUI: begin
s_id_s1 = 32'h00000000;
s_id_s2 = s_id_immed_utype;
s_id_aluop = ALUOP_ADD;
s_id_alu_seed = 0;
s_id_jump = 0;
s_id_branch = 0;
end
OP_AUIPC: begin
s_id_s1 = r_id_pc;
s_id_s2 = s_id_immed_utype;
s_id_aluop = ALUOP_ADD;
s_id_alu_seed = 0;
s_id_jump = 0;
s_id_branch = 0;
end
OP_JAL: begin
s_id_s1 = r_id_pc;
s_id_s2 = s_id_immed_jtype;
s_id_aluop = ALUOP_ADD;
s_id_alu_seed = 0;
s_id_jump = 1;
s_id_branch = 0;
end
OP_JALR: begin
s_id_s1 = regfile[s_id_rs1];
s_id_s2 = s_id_immed_itype;
s_id_aluop = ALUOP_ADD;
s_id_alu_seed = 0;
s_id_jump = 1;
s_id_branch = 0;
end
// OP_BRANCH: begin
// end
// OP_LOAD: begin
// end
// OP_STORE: begin
// end
OP_IMM: begin
s_id_s1 = regfile[s_id_rs1];
s_id_s2 = s_id_immed_itype;
s_id_jump = 0;
s_id_branch = 0;
casex ({s_id_funct3, s_id_funct7})
10'b000xxxxxxx: begin s_id_aluop = ALUOP_ADD; s_id_alu_seed = 1'b0; end // ADDI
10'b010xxxxxxx: begin s_id_aluop = ALUOP_SLT; s_id_alu_seed = 1'bx; end // SLTI
10'b011xxxxxxx: begin s_id_aluop = ALUOP_SLTU; s_id_alu_seed = 1'bx; end // SLTUI
10'b100xxxxxxx: begin s_id_aluop = ALUOP_XOR; s_id_alu_seed = 1'bx; end // XORI
10'b110xxxxxxx: begin s_id_aluop = ALUOP_OR; s_id_alu_seed = 1'bx; end // ORI
10'b111xxxxxxx: begin s_id_aluop = ALUOP_AND; s_id_alu_seed = 1'bx; end // ANDI
10'b0010000000: begin s_id_aluop = ALUOP_SL; s_id_alu_seed = 1'bx; end // SLLI
10'b1010000000: begin s_id_aluop = ALUOP_SR; s_id_alu_seed = 1'b0; end // SRLI
10'b1010100000: begin s_id_aluop = ALUOP_SR; s_id_alu_seed = 1'b1; end // SRAI
default: begin
s_id_s1 = 32'hxxxxxxxx;
s_id_s2 = 32'hxxxxxxxx;
s_id_invalid = 1;
end
endcase
end
OP_ALU: begin
s_id_s1 = regfile[s_id_rs1];
s_id_s2 = regfile[s_id_rs2];
s_id_jump = 0;
s_id_branch = 0;
case ({s_id_funct3, s_id_funct7})
10'b0000000000: begin s_id_aluop = ALUOP_ADD; s_id_alu_seed = 1'b0; end // ADD
10'b0000100000: begin s_id_aluop = ALUOP_ADD; s_id_alu_seed = 1'b1; end // SUB
10'b0010000000: begin s_id_aluop = ALUOP_SL; s_id_alu_seed = 1'bx; end // SLL
10'b0100000000: begin s_id_aluop = ALUOP_SLT; s_id_alu_seed = 1'bx; end // SLT
10'b0110000000: begin s_id_aluop = ALUOP_SLTU; s_id_alu_seed = 1'bx; end // SLTU
10'b1000000000: begin s_id_aluop = ALUOP_XOR; s_id_alu_seed = 1'bx; end // XOR
10'b1100000000: begin s_id_aluop = ALUOP_OR; s_id_alu_seed = 1'bx; end // OR
10'b1110000000: begin s_id_aluop = ALUOP_AND; s_id_alu_seed = 1'bx; end // AND
10'b1010000000: begin s_id_aluop = ALUOP_SR; s_id_alu_seed = 1'b0; end // SRL
10'b1010100000: begin s_id_aluop = ALUOP_SR; s_id_alu_seed = 1'b1; end // SRA
default: begin
s_id_s1 = 32'hxxxxxxxx;
s_id_s2 = 32'hxxxxxxxx;
s_id_invalid = 1;
end
endcase
end
// OP_FENCE: begin
// end
// OP_SYSTEM: begin
// end
default: begin
s_id_jump = 0;
s_id_branch = 0;
s_id_s1 = 32'hxxxxxxxx;
s_id_s2 = 32'hxxxxxxxx;
s_id_invalid = 1;
end
endcase
if (s_id_invalid) begin
$display("Invalid instruction at PC=0x%h", r_id_pc);
s_id_halt = 1'b1;
s_id_aluop = 3'hx;
s_id_alu_seed = 1'bx;
end
end
// EX
reg s_ex_halt;
reg [31:0] s_ex_data1, s_ex_data2;
reg [31:0] s_ex_alu_out;
reg s_ex_alu_zero;
reg [31:0] s_ex_ra;
always @(*) begin
s_ex_halt = 0;
s_ex_data1 = r_ex_s1;
s_ex_data2 = r_ex_s2;
case (r_ex_aluop)
ALUOP_ADD: begin // seed=1: subtract
s_ex_alu_out = s_ex_data1 + (s_ex_data2 ^ {32{r_ex_alu_seed}}) + r_ex_alu_seed;
end
ALUOP_XOR: begin
s_ex_alu_out = (|s_ex_data1) ^ (|s_ex_data2);
end
ALUOP_OR: begin
s_ex_alu_out = (|s_ex_data1) | (|s_ex_data2);
end
ALUOP_AND: begin
s_ex_alu_out = (|s_ex_data1) & (|s_ex_data2);
end
ALUOP_SL: begin
s_ex_alu_out = s_ex_data1 << s_ex_data2;
end
ALUOP_SR: begin // seed=1: arithmetic
s_ex_alu_out = s_ex_data1 >> s_ex_data2;
if (r_ex_alu_seed) begin
s_ex_alu_out = s_ex_data1 >>> s_ex_data2;
end
end
ALUOP_SLT: begin
s_ex_alu_out = $signed(s_ex_data1) < $signed(s_ex_data2);
end
ALUOP_SLTU: begin
s_ex_alu_out = s_ex_data1 < s_ex_data2;
end
default: begin
s_ex_halt = 1;
s_ex_alu_out = 32'hxxxxxxxx;
end
endcase
s_ex_alu_zero = (s_ex_alu_out == 0);
s_ex_ra = r_ex_pc + 4;
end
// MEM
reg s_mem_halt;
reg s_mem_bp;
always @(*) begin
s_mem_halt = 0;
s_mem_bp = 0;
if (r_mem_store) begin
mem_data_en = 1;
mem_data_we = 1;
s_mem_bp = !mem_data_done;
end else if (r_mem_load) begin
mem_data_en = 1;
mem_data_we = 0;
s_mem_bp = !mem_data_valid;
end else begin
mem_data_en = 0;
mem_data_we = 0;
s_mem_bp = 0;
end
end
// WB
reg s_wb_halt;
reg [31:0] s_wb_data;
reg s_wb_write;
always @(*) begin
s_wb_halt = 0;
// load instructions do not use output of alu in wb
s_wb_data = r_wb_alu_out;
// FIXME: always writes!!!
s_wb_write = !r_wb_stall;
end
// SYS
reg s_sys_halt;
always @(*) begin
s_sys_halt = s_if_halt || s_id_halt || s_ex_halt || s_mem_halt || s_wb_halt;
end
// Register update
always @(posedge clk) begin
if (reset) begin
r_if_pc <= 32'h00000000;
// rather than resetting all flip-flops just stall the pipeline so values are ignored.
r_id_stall <= 1;
r_ex_stall <= 1;
r_mem_stall <= 1;
r_wb_stall <= 1;
end else begin
// NOTE: halt disabled because startup causes hault
// if (s_sys_halt && 0) begin
// // stay halted forever
// end else begin
// IF
if (!s_mem_bp) begin
r_if_pc <= s_if_next_pc;
end
// ID
if (!s_mem_bp) begin
r_id_stall <= s_if_stall;
r_id_pc <= r_if_pc;
r_id_inst <= s_if_inst;
end
// EX
if (!s_mem_bp) begin
// TODO: also stall EX if taking branch
r_ex_stall <= r_id_stall;
r_ex_pc <= r_id_pc;
r_ex_inst <= r_id_inst;
r_ex_rd <= s_id_rd;
r_ex_s1 <= s_id_s1;
r_ex_s2 <= s_id_s2;
r_ex_aluop <= s_id_aluop;
r_ex_alu_seed <= s_id_alu_seed;
r_ex_jump <= s_id_jump;
end
// MEM
if (!s_mem_bp) begin
r_mem_stall <= r_ex_stall;
r_mem_pc <= r_ex_pc;
r_mem_inst <= r_ex_inst;
r_mem_rd <= r_ex_rd;
r_mem_s1 <= r_ex_s1;
r_mem_s2 <= r_ex_s2;
r_mem_alu_out <= s_ex_alu_out;
r_mem_alu_zero <= s_ex_alu_zero;
end
// WB
if (!s_mem_bp) begin
r_wb_stall <= r_mem_stall;
r_wb_pc <= r_mem_pc;
r_wb_rd <= r_mem_rd;
r_wb_alu_out <= r_mem_alu_out;
end
// Register File
if (r_wb_rd != 0 && s_wb_write) begin
regfile[r_wb_rd] <= s_wb_data;
end
// end
end
end
assign dummy_out = s_wb_data[0];
endmodule

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`timescale 1 ns / 1 ps
module core_tb();
localparam MEM_INST_LENGTH = 256;
localparam MEM_DATA_LENGTH = 256;
reg clk, reset;
wire [31:0] mem_inst_addr;
wire [31:0] mem_inst_idx = mem_inst_addr >> 2;
reg [31:0] mem_inst_data;
reg [31:0] mem_inst [0:MEM_INST_LENGTH-1];
reg [31:0] mem_data [0:MEM_DATA_LENGTH-1];
wire [31:0] mem_data_addr;
wire [31:0] mem_data_wdata;
reg [31:0] mem_data_rdata;
wire mem_data_en;
wire mem_data_we;
reg mem_data_valid;
reg mem_data_done;
integer i;
localparam OP_LUI = 7'b0110111,
OP_AUIPC = 7'b0010111,
OP_JAL = 7'b1101111,
OP_JALR = 7'b1100111,
OP_BRANCH = 7'b1100011,
OP_LOAD = 7'b0000011,
OP_STORE = 7'b0100011,
OP_IMM = 7'b0010011,
OP_ALU = 7'b0110011,
OP_FENCE = 7'b0001111,
OP_SYSTEM = 7'b1110011;
localparam INST_NOP = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd0, OP_ALU}; // nop
initial begin
for (i=0; i<MEM_INST_LENGTH; i=i+1) begin
mem_inst[i] = INST_NOP;
end
// Initialize all registers
mem_inst[0] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd1, OP_ALU}; // add x1, x0, x0
mem_inst[1] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd2, OP_ALU}; // add x2, x0, x0
mem_inst[2] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd3, OP_ALU}; // add x3, x0, x0
mem_inst[3] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd4, OP_ALU}; // add x4, x0, x0
mem_inst[4] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd5, OP_ALU}; // add x5, x0, x0
mem_inst[5] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd6, OP_ALU}; // add x6, x0, x0
mem_inst[6] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd7, OP_ALU}; // add x7, x0, x0
mem_inst[7] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd8, OP_ALU}; // add x8, x0, x0
mem_inst[8] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd9, OP_ALU}; // add x9, x0, x0
mem_inst[9] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd10, OP_ALU}; // add x10, x0, x0
mem_inst[10] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd11, OP_ALU}; // add x11, x0, x0
mem_inst[11] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd12, OP_ALU}; // add x12, x0, x0
mem_inst[12] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd13, OP_ALU}; // add x13, x0, x0
mem_inst[13] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd14, OP_ALU}; // add x14, x0, x0
mem_inst[14] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd15, OP_ALU}; // add x15, x0, x0
mem_inst[15] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd16, OP_ALU}; // add x16, x0, x0
mem_inst[16] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd17, OP_ALU}; // add x17, x0, x0
mem_inst[17] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd18, OP_ALU}; // add x18, x0, x0
mem_inst[18] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd19, OP_ALU}; // add x19, x0, x0
mem_inst[19] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd20, OP_ALU}; // add x20, x0, x0
mem_inst[20] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd21, OP_ALU}; // add x21, x0, x0
mem_inst[21] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd22, OP_ALU}; // add x22, x0, x0
mem_inst[22] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd23, OP_ALU}; // add x23, x0, x0
mem_inst[23] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd24, OP_ALU}; // add x24, x0, x0
mem_inst[24] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd25, OP_ALU}; // add x25, x0, x0
mem_inst[25] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd26, OP_ALU}; // add x26, x0, x0
mem_inst[26] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd27, OP_ALU}; // add x27, x0, x0
mem_inst[27] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd28, OP_ALU}; // add x28, x0, x0
mem_inst[28] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd29, OP_ALU}; // add x29, x0, x0
mem_inst[29] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd30, OP_ALU}; // add x30, x0, x0
mem_inst[30] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd31, OP_ALU}; // add x31, x0, x0
mem_inst[36] = {12'd1, 5'd0, 3'b000, 5'd2, OP_IMM}; // addi x2, x0, 1
mem_inst[42] = {7'b0000000, 5'd2, 5'd1, 3'b000, 5'd3, OP_ALU}; // add x3, x1, x2
mem_inst[48] = {7'b0000000, 5'd2, 5'd3, 3'b000, 5'd3, OP_ALU}; // add x3, x3, x2
mem_inst[54] = {7'b0000000, 5'd3, 5'd3, 3'b000, 5'd3, OP_ALU}; // add x3, x3, x3
mem_inst[60] = {12'h123, 5'd0, 3'b000, 5'd4, OP_IMM}; // addi x4, x0, 0x123
mem_inst[66] = {12'h000, 5'd4, 3'b000, 5'd5, OP_IMM}; // addi x5, x4, 0
mem_inst[72] = {12'hfff, 5'd5, 3'b000, 5'd5, OP_IMM}; // addi x5, x5, -1
mem_inst[78] = {20'hedcba, 5'd7, OP_LUI}; // lui x7, 0xedcba
mem_inst[84] = {12'h987, 5'd7, 3'b000, 5'd7, OP_IMM}; // addi x7, x7, 0x987
mem_inst[90] = {20'h00032, 5'd8, OP_AUIPC}; // auipc x8, 0x32 // 90*4 + 0x32000 = 0x32168
// mem_inst[96] = {12'd288, 5'd0, 3'b000, 5'd9, OP_JALR}; // jalr x9, x0, 72*4 // unconditional jump to index 72 = 288/4
mem_inst[102] = {1'b0,10'd24,1'b0,8'b0, 3'b000, 5'd9, OP_JAL}; // jal x10, +24 // unconditional jump to index +12 = 24*2/4
mem_inst[108] = {12'd4, 5'd0, 3'b000, 5'd2, OP_IMM}; // addi x11, x0, 4 // this should be skipped
mem_inst[114] = {12'd5, 5'd0, 3'b000, 5'd2, OP_IMM}; // addi x12, x0, 5
mem_inst[120] = {12'd5, 5'd0, 3'b000, 5'd2, OP_IMM}; // addi x12, x12, 6
end
always @(*) begin
if (mem_inst_idx < MEM_INST_LENGTH) begin
mem_inst_data = mem_inst[mem_inst_idx];
end else begin
mem_inst_data = INST_NOP;
end
end
initial begin
#0
clk = 0;
reset = 1;
#20
reset = 0;
#5000
reset = 1;
$stop;
end
always #10 clk = !clk;
core dut(
.clk(clk),
.reset(reset),
.mem_inst_addr(mem_inst_addr),
.mem_inst_data(mem_inst_data),
.mem_data_addr(mem_data_addr),
.mem_data_wdata(mem_data_wdata),
.mem_data_rdata(mem_data_rdata),
.mem_data_en(mem_data_en),
.mem_data_we(mem_data_we),
.mem_data_valid(mem_data_valid),
.mem_data_done(mem_data_done)
);
endmodule

98
hdl/top.v Normal file
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module top(
input clk50,
output [1:0] led
);
wire [31:0] mem_inst_addr;
wire [31:0] mem_inst_idx = mem_inst_addr >> 2;
reg [31:0] mem_inst_data;
reg [31:0] mem_inst [0:MEM_INST_LENGTH-1];
integer i;
localparam OP_LUI = 7'b0110111,
OP_AUIPC = 7'b0010111,
OP_JAL = 7'b1101111,
OP_JALR = 7'b1100111,
OP_BRANCH = 7'b1100011,
OP_LOAD = 7'b0000011,
OP_STORE = 7'b0100011,
OP_IMM = 7'b0010011,
OP_ALU = 7'b0110011,
OP_FENCE = 7'b0001111,
OP_SYSTEM = 7'b1110011;
localparam MEM_INST_LENGTH = 256;
localparam MEM_DATA_LENGTH = 256;
localparam INST_NOP = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd0, OP_ALU}; // nop
initial begin
for (i=0; i<MEM_INST_LENGTH; i=i+1) begin
mem_inst[i] = INST_NOP;
end
// Initialize all registers
mem_inst[0] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd1, OP_ALU}; // add x1, x0, x0
mem_inst[1] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd2, OP_ALU}; // add x2, x0, x0
mem_inst[2] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd3, OP_ALU}; // add x3, x0, x0
mem_inst[3] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd4, OP_ALU}; // add x4, x0, x0
mem_inst[4] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd5, OP_ALU}; // add x5, x0, x0
mem_inst[5] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd6, OP_ALU}; // add x6, x0, x0
mem_inst[6] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd7, OP_ALU}; // add x7, x0, x0
mem_inst[7] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd8, OP_ALU}; // add x8, x0, x0
mem_inst[8] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd9, OP_ALU}; // add x9, x0, x0
mem_inst[9] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd10, OP_ALU}; // add x10, x0, x0
mem_inst[10] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd11, OP_ALU}; // add x11, x0, x0
mem_inst[11] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd12, OP_ALU}; // add x12, x0, x0
mem_inst[12] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd13, OP_ALU}; // add x13, x0, x0
mem_inst[13] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd14, OP_ALU}; // add x14, x0, x0
mem_inst[14] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd15, OP_ALU}; // add x15, x0, x0
mem_inst[15] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd16, OP_ALU}; // add x16, x0, x0
mem_inst[16] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd17, OP_ALU}; // add x17, x0, x0
mem_inst[17] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd18, OP_ALU}; // add x18, x0, x0
mem_inst[18] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd19, OP_ALU}; // add x19, x0, x0
mem_inst[19] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd20, OP_ALU}; // add x20, x0, x0
mem_inst[20] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd21, OP_ALU}; // add x21, x0, x0
mem_inst[21] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd22, OP_ALU}; // add x22, x0, x0
mem_inst[22] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd23, OP_ALU}; // add x23, x0, x0
mem_inst[23] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd24, OP_ALU}; // add x24, x0, x0
mem_inst[24] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd25, OP_ALU}; // add x25, x0, x0
mem_inst[25] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd26, OP_ALU}; // add x26, x0, x0
mem_inst[26] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd27, OP_ALU}; // add x27, x0, x0
mem_inst[27] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd28, OP_ALU}; // add x28, x0, x0
mem_inst[28] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd29, OP_ALU}; // add x29, x0, x0
mem_inst[29] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd30, OP_ALU}; // add x30, x0, x0
mem_inst[30] = {7'b0000000, 5'd0, 5'd0, 3'b000, 5'd31, OP_ALU}; // add x31, x0, x0
mem_inst[36] = {12'd1, 5'd0, 3'b000, 5'd2, OP_IMM}; // addi x2, x0, 1
mem_inst[42] = {7'b0000000, 5'd2, 5'd1, 3'b000, 5'd3, OP_ALU}; // add x3, x1, x2
mem_inst[48] = {7'b0000000, 5'd2, 5'd3, 3'b000, 5'd3, OP_ALU}; // add x3, x3, x2
mem_inst[54] = {7'b0000000, 5'd3, 5'd3, 3'b000, 5'd3, OP_ALU}; // add x3, x3, x3
mem_inst[60] = {12'h123, 5'd0, 3'b000, 5'd4, OP_IMM}; // addi x4, x0, 0x123
mem_inst[66] = {12'hfff, 5'd4, 3'b000, 5'd5, OP_IMM}; // addi x5, x4, 0xfff
mem_inst[72] = {20'hedcba, 5'd7, OP_LUI}; // lui x7, 0xedcba
mem_inst[78] = {12'h987, 5'd7, 3'b000, 5'd7, OP_IMM}; // addi x7, x7, 0x987
mem_inst[84] = {20'h00032, 5'd8, OP_AUIPC}; // auipc x8, 0x32 // 84*4 + 0x32 = 0x182
end
always @(*) begin
if (mem_inst_idx < MEM_INST_LENGTH) begin
mem_inst_data = mem_inst[mem_inst_idx];
end else begin
mem_inst_data = INST_NOP;
end
end
core c(
.clk(clk50),
.reset(1'b0),
.dummy_out(led[0]),
.mem_inst_addr(mem_inst_addr),
.mem_inst_data(mem_inst_data)
);
assign led[1] = mem_inst_addr[1];
endmodule

61
pins.ucf Normal file
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NET "clk50" LOC = "K3" | IOSTANDARD = LVCMOS33 | PERIOD = 50 MHz;
# DVI-D interface
# NET "TMDS_out_P(0)" LOC = "C13" | IOSTANDARD = TMDS_33 ; # Blue
# NET "TMDS_out_N(0)" LOC = "A13" | IOSTANDARD = TMDS_33 ;
# NET "TMDS_out_P(1)" LOC = "B12" | IOSTANDARD = TMDS_33 ; # Red
# NET "TMDS_out_N(1)" LOC = "A12" | IOSTANDARD = TMDS_33 ;
# NET "TMDS_out_P(2)" LOC = "C11" | IOSTANDARD = TMDS_33 ; # Green
# NET "TMDS_out_N(2)" LOC = "A11" | IOSTANDARD = TMDS_33 ;
# NET "TMDS_out_P(3)" LOC = "B14" | IOSTANDARD = TMDS_33 ; # Clock
# NET "TMDS_out_N(3)" LOC = "A14" | IOSTANDARD = TMDS_33 ;
CONFIG VCCAUX=3.3;
# NET clk32 LOC = "J4" | IOSTANDARD = LVTTL | PERIOD = 31.25ns;
# NET hdmi_clk_p LOC="C9" | IOSTANDARD=TMDS_33;
# NET hdmi_clk_n LOC="A9" | IOSTANDARD=TMDS_33;
# NET hdmi_c0_p LOC="B5" | IOSTANDARD=TMDS_33;
# NET hdmi_c0_n LOC="A5" | IOSTANDARD=TMDS_33;
# NET hdmi_c1_p LOC="A7" | IOSTANDARD=TMDS_33; #Fix it inthe design
# NET hdmi_c1_n LOC="C7" | IOSTANDARD=TMDS_33; #Fix it inthe design
# NET hdmi_c2_p LOC="A6" | IOSTANDARD=TMDS_33; #Fix it inthe design
# NET hdmi_c2_n LOC="B6" | IOSTANDARD=TMDS_33; #Fix it inthe design
# NET hdmi_sclk LOC="C1" | IOSTANDARD=LVTTL ;
# NET hdmi_sdat LOC="B1" | IOSTANDARD=LVTTL ;
# NET red(0) LOC="D6" | IOSTANDARD=LVTTL;
# NET red(1) LOC="E6" | IOSTANDARD=LVTTL;
# NET red(2) LOC="C6" | IOSTANDARD=LVTTL;
# NET green(0) LOC="A4" | IOSTANDARD=LVTTL;
# NET green(1) LOC="G5" | IOSTANDARD=LVTTL;
# NET green(2) LOC="A3" | IOSTANDARD=LVTTL;
# NET blue(0) LOC="D5" | IOSTANDARD=LVTTL;
# NET blue(1) LOC="C5" | IOSTANDARD=LVTTL;
# NET btns(0) LOC="L1" | IOSTANDARD=LVTTL |PULLUP;
# NET btns(1) LOC="L3" | IOSTANDARD=LVTTL |PULLUP;
# NET btns(2) LOC="L4" | IOSTANDARD=LVTTL |PULLUP;
# NET btns(3) LOC="L5" | IOSTANDARD=LVTTL |PULLUP;
NET led(0) LOC="P11" | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=SLOW;
NET led(1) LOC="N9" | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=SLOW;
# NET leds(2) LOC="M9" | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=SLOW;
# NET leds(3) LOC="P9" | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=SLOW;
# NET leds(4) LOC="T8" | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=SLOW;
# NET leds(5) LOC="N8" | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=SLOW;
# NET leds(6) LOC="P8" | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=SLOW;
# NET leds(7) LOC="P7" | IOSTANDARD=LVTTL | DRIVE=8 | SLEW=SLOW;
# NET hsync0 LOC="J1" | IOSTANDARD=LVTTL;
# NET vsync0 LOC="G1" | IOSTANDARD=LVTTL;
# NET hsync1 LOC="G3" | IOSTANDARD=LVTTL;
# NET vsync1 LOC="H1" | IOSTANDARD=LVTTL;
# NET hsync2 LOC="H2" | IOSTANDARD=LVTTL;
# NET vsync2 LOC="H3" | IOSTANDARD=LVTTL;

26
project.cfg Normal file
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@ -0,0 +1,26 @@
XILINX = /opt/Xilinx/14.7/ISE_DS/ISE/
PROJECT = riscv_core
TARGET_PART = xc6slx25-3-ftg256
VSOURCE = hdl/core.v hdl/top.v
# VHDSOURCE = hdl/*.vhd
VTEST = hdl/tb/core_tb.v
# VHDTEST = hdl/tb/*.vhd
TB = core_tb
# XILINX_PLATFORM = lin64
TOPLEVEL = top
CONSTRAINTS = pins.ucf
# COMMON_OPTS =
# XST_OPTS =
# NGDBUILD_OPTS =
MAP_OPTS = -mt 2 -ol high
PAR_OPTS = -mt 4 -ol high
# BITGEN_OPTS = -g Compress
# TRACE_OPTS =
# FUSE_OPTS =
PROGRAMMER = xc3sprog
XC3SPROG_CABLE = ftdi

416
sim/core_tb.wcfg Normal file
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@ -0,0 +1,416 @@
<?xml version="1.0" encoding="UTF-8"?>
<wave_config>
<wave_state>
</wave_state>
<db_ref_list>
<db_ref path="./isim.wdb" id="1" type="auto">
<top_modules>
<top_module name="core_tb" />
<top_module name="glbl" />
</top_modules>
</db_ref>
</db_ref_list>
<WVObjectSize size="8" />
<wvobject fp_name="/core_tb/clk" type="logic" db_ref_id="1">
<obj_property name="ElementShortName">clk</obj_property>
<obj_property name="ObjectShortName">clk</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/reset" type="logic" db_ref_id="1">
<obj_property name="ElementShortName">reset</obj_property>
<obj_property name="ObjectShortName">reset</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile" type="array" db_ref_id="1">
<obj_property name="ElementShortName">regfile[0:31,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[0:31,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
<wvobject fp_name="/core_tb/dut/regfile[0]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[0,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[0,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[1]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[1,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[1,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[2]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[2,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[2,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[3]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[3,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[3,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[4]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[4,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[4,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[5]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[5,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[5,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[6]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[6,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[6,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[7]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[7,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[7,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[8]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[8,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[8,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[9]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[9,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[9,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[10]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[10,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[10,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[11]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[11,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[11,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[12]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[12,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[12,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[13]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[13,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[13,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[14]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[14,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[14,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[15]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[15,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[15,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[16]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[16,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[16,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[17]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[17,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[17,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[18]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[18,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[18,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[19]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[19,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[19,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[20]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[20,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[20,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[21]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[21,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[21,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[22]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[22,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[22,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[23]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[23,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[23,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[24]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[24,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[24,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[25]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[25,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[25,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[26]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[26,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[26,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[27]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[27,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[27,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[28]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[28,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[28,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[29]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[29,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[29,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[30]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[30,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[30,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/regfile[31]" type="array" db_ref_id="1">
<obj_property name="ElementShortName">[31,31:0]</obj_property>
<obj_property name="ObjectShortName">regfile[31,31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
</wvobject>
<wvobject fp_name="group4" type="group">
<obj_property name="label">IF</obj_property>
<obj_property name="DisplayName">label</obj_property>
<wvobject fp_name="/core_tb/dut/r_if_pc" type="array" db_ref_id="1">
<obj_property name="ElementShortName">r_if_pc[31:0]</obj_property>
<obj_property name="ObjectShortName">r_if_pc[31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_if_next_pc" type="array" db_ref_id="1">
<obj_property name="ElementShortName">s_if_next_pc[31:0]</obj_property>
<obj_property name="ObjectShortName">s_if_next_pc[31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_if_inst" type="array" db_ref_id="1">
<obj_property name="ElementShortName">s_if_inst[31:0]</obj_property>
<obj_property name="ObjectShortName">s_if_inst[31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_if_halt" type="logic" db_ref_id="1">
<obj_property name="ElementShortName">s_if_halt</obj_property>
<obj_property name="ObjectShortName">s_if_halt</obj_property>
</wvobject>
</wvobject>
<wvobject fp_name="group5" type="group">
<obj_property name="label">ID</obj_property>
<obj_property name="DisplayName">label</obj_property>
<wvobject fp_name="/core_tb/dut/r_id_stall" type="logic" db_ref_id="1">
<obj_property name="ElementShortName">r_id_stall</obj_property>
<obj_property name="ObjectShortName">r_id_stall</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/r_id_pc" type="array" db_ref_id="1">
<obj_property name="ElementShortName">r_id_pc[31:0]</obj_property>
<obj_property name="ObjectShortName">r_id_pc[31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/r_id_inst" type="array" db_ref_id="1">
<obj_property name="ElementShortName">r_id_inst[31:0]</obj_property>
<obj_property name="ObjectShortName">r_id_inst[31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_id_opcode" type="array" db_ref_id="1">
<obj_property name="ElementShortName">s_id_opcode[6:0]</obj_property>
<obj_property name="ObjectShortName">s_id_opcode[6:0]</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_id_funct3" type="array" db_ref_id="1">
<obj_property name="ElementShortName">s_id_funct3[2:0]</obj_property>
<obj_property name="ObjectShortName">s_id_funct3[2:0]</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_id_funct7" type="array" db_ref_id="1">
<obj_property name="ElementShortName">s_id_funct7[6:0]</obj_property>
<obj_property name="ObjectShortName">s_id_funct7[6:0]</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_id_rd" type="array" db_ref_id="1">
<obj_property name="ElementShortName">s_id_rd[4:0]</obj_property>
<obj_property name="ObjectShortName">s_id_rd[4:0]</obj_property>
<obj_property name="Radix">UNSIGNEDDECRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_id_rs1" type="array" db_ref_id="1">
<obj_property name="ElementShortName">s_id_rs1[4:0]</obj_property>
<obj_property name="ObjectShortName">s_id_rs1[4:0]</obj_property>
<obj_property name="Radix">UNSIGNEDDECRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_id_rs2" type="array" db_ref_id="1">
<obj_property name="ElementShortName">s_id_rs2[4:0]</obj_property>
<obj_property name="ObjectShortName">s_id_rs2[4:0]</obj_property>
<obj_property name="Radix">UNSIGNEDDECRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_id_aluop" type="array" db_ref_id="1">
<obj_property name="ElementShortName">s_id_aluop[2:0]</obj_property>
<obj_property name="ObjectShortName">s_id_aluop[2:0]</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_id_alu_seed" type="logic" db_ref_id="1">
<obj_property name="ElementShortName">s_id_alu_seed</obj_property>
<obj_property name="ObjectShortName">s_id_alu_seed</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_id_jump" type="logic" db_ref_id="1">
<obj_property name="ElementShortName">s_id_jump</obj_property>
<obj_property name="ObjectShortName">s_id_jump</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_id_invalid" type="logic" db_ref_id="1">
<obj_property name="ElementShortName">s_id_invalid</obj_property>
<obj_property name="ObjectShortName">s_id_invalid</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_id_halt" type="logic" db_ref_id="1">
<obj_property name="ElementShortName">s_id_halt</obj_property>
<obj_property name="ObjectShortName">s_id_halt</obj_property>
</wvobject>
</wvobject>
<wvobject fp_name="group6" type="group">
<obj_property name="label">EX</obj_property>
<obj_property name="DisplayName">label</obj_property>
<wvobject fp_name="/core_tb/dut/r_ex_stall" type="logic" db_ref_id="1">
<obj_property name="ElementShortName">r_ex_stall</obj_property>
<obj_property name="ObjectShortName">r_ex_stall</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/r_ex_pc" type="array" db_ref_id="1">
<obj_property name="ElementShortName">r_ex_pc[31:0]</obj_property>
<obj_property name="ObjectShortName">r_ex_pc[31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/r_ex_inst" type="array" db_ref_id="1">
<obj_property name="ElementShortName">r_ex_inst[31:0]</obj_property>
<obj_property name="ObjectShortName">r_ex_inst[31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/r_ex_rd" type="array" db_ref_id="1">
<obj_property name="ElementShortName">r_ex_rd[4:0]</obj_property>
<obj_property name="ObjectShortName">r_ex_rd[4:0]</obj_property>
<obj_property name="Radix">UNSIGNEDDECRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/r_ex_s1" type="array" db_ref_id="1">
<obj_property name="ElementShortName">r_ex_s1[31:0]</obj_property>
<obj_property name="ObjectShortName">r_ex_s1[31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/r_ex_s2" type="array" db_ref_id="1">
<obj_property name="ElementShortName">r_ex_s2[31:0]</obj_property>
<obj_property name="ObjectShortName">r_ex_s2[31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/r_ex_aluop" type="array" db_ref_id="1">
<obj_property name="ElementShortName">r_ex_aluop[2:0]</obj_property>
<obj_property name="ObjectShortName">r_ex_aluop[2:0]</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/r_ex_alu_seed" type="logic" db_ref_id="1">
<obj_property name="ElementShortName">r_ex_alu_seed</obj_property>
<obj_property name="ObjectShortName">r_ex_alu_seed</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_ex_data1" type="array" db_ref_id="1">
<obj_property name="ElementShortName">s_ex_data1[31:0]</obj_property>
<obj_property name="ObjectShortName">s_ex_data1[31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_ex_data2" type="array" db_ref_id="1">
<obj_property name="ElementShortName">s_ex_data2[31:0]</obj_property>
<obj_property name="ObjectShortName">s_ex_data2[31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_ex_alu_out" type="array" db_ref_id="1">
<obj_property name="ElementShortName">s_ex_alu_out[31:0]</obj_property>
<obj_property name="ObjectShortName">s_ex_alu_out[31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_ex_alu_zero" type="logic" db_ref_id="1">
<obj_property name="ElementShortName">s_ex_alu_zero</obj_property>
<obj_property name="ObjectShortName">s_ex_alu_zero</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/r_ex_jump" type="logic" db_ref_id="1">
<obj_property name="ElementShortName">r_ex_jump</obj_property>
<obj_property name="ObjectShortName">r_ex_jump</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_ex_halt" type="logic" db_ref_id="1">
<obj_property name="ElementShortName">s_ex_halt</obj_property>
<obj_property name="ObjectShortName">s_ex_halt</obj_property>
</wvobject>
</wvobject>
<wvobject fp_name="group7" type="group">
<obj_property name="label">MEM</obj_property>
<obj_property name="DisplayName">label</obj_property>
<wvobject fp_name="/core_tb/dut/r_mem_stall" type="logic" db_ref_id="1">
<obj_property name="ElementShortName">r_mem_stall</obj_property>
<obj_property name="ObjectShortName">r_mem_stall</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/r_mem_pc" type="array" db_ref_id="1">
<obj_property name="ElementShortName">r_mem_pc[31:0]</obj_property>
<obj_property name="ObjectShortName">r_mem_pc[31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/r_mem_inst" type="array" db_ref_id="1">
<obj_property name="ElementShortName">r_mem_inst[31:0]</obj_property>
<obj_property name="ObjectShortName">r_mem_inst[31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/r_mem_rd" type="array" db_ref_id="1">
<obj_property name="ElementShortName">r_mem_rd[4:0]</obj_property>
<obj_property name="ObjectShortName">r_mem_rd[4:0]</obj_property>
<obj_property name="Radix">UNSIGNEDDECRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/r_mem_alu_out" type="array" db_ref_id="1">
<obj_property name="ElementShortName">r_mem_alu_out[31:0]</obj_property>
<obj_property name="ObjectShortName">r_mem_alu_out[31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/r_mem_alu_zero" type="logic" db_ref_id="1">
<obj_property name="ElementShortName">r_mem_alu_zero</obj_property>
<obj_property name="ObjectShortName">r_mem_alu_zero</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_mem_halt" type="logic" db_ref_id="1">
<obj_property name="ElementShortName">s_mem_halt</obj_property>
<obj_property name="ObjectShortName">s_mem_halt</obj_property>
</wvobject>
</wvobject>
<wvobject fp_name="group8" type="group">
<obj_property name="label">WB</obj_property>
<obj_property name="DisplayName">label</obj_property>
<wvobject fp_name="/core_tb/dut/r_wb_stall" type="logic" db_ref_id="1">
<obj_property name="ElementShortName">r_wb_stall</obj_property>
<obj_property name="ObjectShortName">r_wb_stall</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/r_wb_pc" type="array" db_ref_id="1">
<obj_property name="ElementShortName">r_wb_pc[31:0]</obj_property>
<obj_property name="ObjectShortName">r_wb_pc[31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/r_wb_inst" type="array" db_ref_id="1">
<obj_property name="ElementShortName">r_wb_inst[31:0]</obj_property>
<obj_property name="ObjectShortName">r_wb_inst[31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/r_wb_alu_out" type="array" db_ref_id="1">
<obj_property name="ElementShortName">r_wb_alu_out[31:0]</obj_property>
<obj_property name="ObjectShortName">r_wb_alu_out[31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/r_wb_rd" type="array" db_ref_id="1">
<obj_property name="ElementShortName">r_wb_rd[4:0]</obj_property>
<obj_property name="ObjectShortName">r_wb_rd[4:0]</obj_property>
<obj_property name="Radix">UNSIGNEDDECRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_wb_data" type="array" db_ref_id="1">
<obj_property name="ElementShortName">s_wb_data[31:0]</obj_property>
<obj_property name="ObjectShortName">s_wb_data[31:0]</obj_property>
<obj_property name="Radix">HEXRADIX</obj_property>
</wvobject>
<wvobject fp_name="/core_tb/dut/s_wb_halt" type="logic" db_ref_id="1">
<obj_property name="ElementShortName">s_wb_halt</obj_property>
<obj_property name="ObjectShortName">s_wb_halt</obj_property>
</wvobject>
</wvobject>
</wave_config>