verilog基本编译器错误
我想用verilog编译一个程序,但有一个基本的错误。我想不出是什么。 第一模块:verilog基本编译器错误,verilog,Verilog,我想用verilog编译一个程序,但有一个基本的错误。我想不出是什么。 第一模块: module inst_line_buf (from_LS,clk,fetch_ctrl,dec_ctrl,hmic_ctrl,branch_ctrl,to_if1,to_if2,flush_ctrl); //from local store and all the control signals defined. to_if sends 2 insts to fetch input from_L
module inst_line_buf (from_LS,clk,fetch_ctrl,dec_ctrl,hmic_ctrl,branch_ctrl,to_if1,to_if2,flush_ctrl);
//from local store and all the control signals defined. to_if sends 2 insts to fetch
input from_LS, clk, fetch_ctrl, dec_ctrl, hmic_ctrl, branch_ctrl;
output to_if1,to_if2;
output flush_ctrl;
// 16 instructions of 32 bits each.
wire [511:0] from_LS;
wire fetch_ctrl;
// dec_ctrl - 1 bit
// 0 : will tell if 2 instructions given to it are structurally dependent.
wire dec_ctrl;
// hmic_ctrl - 4 bits
// 0 : whether to stall sending the instructions.
// 1:3 : how many cycles to stall.
wire [3:0] hmic_ctrl;
// branch_ctrl - 14 bits
// 0 : whether to issue from buffer 1 or buffer 2, whether branch is taken or not.
// 1:13 : branch address. Get and store in buffer 2.
wire [13:0] branch_ctrl;
// to_if - 64 bits
// 0:63 : 2 instructions to inst fetch.
reg [31:0] to_if1;
reg [31:0] to_if2;
// flush_ctrl - 1 bit
// To three buffers in main prog, whether to flush the buffers or not.
reg flush_ctrl;
//pc is program counter
reg [12:0] pc;
// ilb stores 16 32 bit instructions from from_LS
reg [31:0] ilb[0:15];
// ilb1 is the buffer which stores all the branch instructions
reg [31:0] ilb1[0:15];
//buffer_bit - 1 bit
// buffer_bit act like a vlid bit which helps in selecting appropriate buffer
reg buffer_bit;
integer a;
integer count1,count2;
initial
begin
count1 = 0;
count2=0;
flush_ctrl=0;
buffer_bit=0;
a=hmic_ctrl[3:1];
ilb=from_LS[511:0];
program_counter pctr (
.clk(clk),
.reset(0),
.offset(branch_ctrl[13:1]),
.mux_select(branch_ctrl[0]),
.pc1(pc)
);
end
always (@posedge clk)
begin
if(!dec_ctrl && !hmic_ctrl[0] && !branch_ctrl[0])
begin
if(buffer_bit==0)
begin
to_if1<=ilb[511-(count1*32)];
to_if2<=ilb[511-((count1+1)*32)];
count1<=count1+1;
end
else
begin
to_if1<=ilb1[511-(count2*32)];
to_if2<=ilb1[511-((count2+1)*32)];
count2<=count2+1;
end
end
else if (branch_ctrl[0])
begin
flush_ctrl<=1; // to flush the 3 buffer.
// flush self.
end
else if(dec_ctrl)
begin
if(buffer_bit==0)
count1<=count1-1;
else
count2<=count2-1;
//to_if1= opcode-nop;
//to_if2= opcode-nop;
end
else if(hmic_ctrl[0])
begin
for (i=0;i<=a;i=i+1)
begin
//to_if1= opcode-nop;
//to_if2= opcode-nop;
end
end
end
endmodule
您有几件事情申报错误:
- 总线片应使用
,而不是[]
。例如,尝试()
而不是branch\u ctrl[13:1]
branch\u ctrl(13:1)
- 您的
端口需要一个大小偏移量
- 对顺序逻辑使用非阻塞分配
- 您可以使用verilog-2001样式的端口声明来保存键入
module inst_line_buf (
input wire from_LS,clk,fetch_ctrl,dec_ctrl,
hmic_ctrl,to_if1,to_if2,flush_ctrl,
input wire [13:0] branch_ctrl,
output wire [12:0] pc
);
program_counter pctr (
.clk(clk),
.reset(0),
.offset(branch_ctrl[13:1]),
.mux_select(branch_ctrl[0]),
.pc1(pc)
);
endmodule
module program_counter (
input wire clk, reset, mux_select,
input wire [12:0] offset,
output reg [12:0] pc1
);
always @ (posedge clk)
if (!reset)
begin
if (!mux_select)
pc1 <= pc1+8;
else
pc1 <= pc1+offset;
end
else
pc1 <= 0;
endmodule
模块安装线路(
输入线从LS、clk、fetch\U ctrl、dec\U ctrl、,
hmic\u ctrl,至\u if1,至\u if2,刷新\u ctrl,
输入导线[13:0]分支\u ctrl,
输出线[12:0]pc
);
程序计数器(
.clk(clk),
.重置(0),
.偏移量(分支控制[13:1]),
.mux\u select(分支\u ctrl[0]),
.pc1(pc)
);
端模
模块程序计数器(
输入线时钟、复位、多路复用器选择、,
输入导线[12:0]偏移,
输出寄存器[12:0]pc1
);
始终@(posedge clk)
如果(!重置)
开始
如果(!mux_select)
pc1您有几件事申报错误:
- 总线片应使用
[]
,而不是()
。例如,尝试branch\u ctrl[13:1]
而不是branch\u ctrl(13:1)
- 您的
偏移量
端口需要一个大小
- 对顺序逻辑使用非阻塞分配
- 您可以使用verilog-2001样式的端口声明来保存键入
这是您的代码的编辑版本。它可以编译,但我觉得它不能正常工作,因为我没有您的顶级模块的完整版本:
module inst_line_buf (
input wire from_LS,clk,fetch_ctrl,dec_ctrl,
hmic_ctrl,to_if1,to_if2,flush_ctrl,
input wire [13:0] branch_ctrl,
output wire [12:0] pc
);
program_counter pctr (
.clk(clk),
.reset(0),
.offset(branch_ctrl[13:1]),
.mux_select(branch_ctrl[0]),
.pc1(pc)
);
endmodule
module program_counter (
input wire clk, reset, mux_select,
input wire [12:0] offset,
output reg [12:0] pc1
);
always @ (posedge clk)
if (!reset)
begin
if (!mux_select)
pc1 <= pc1+8;
else
pc1 <= pc1+offset;
end
else
pc1 <= 0;
endmodule
模块安装线路(
输入线从LS、clk、fetch\U ctrl、dec\U ctrl、,
hmic\u ctrl,至\u if1,至\u if2,刷新\u ctrl,
输入导线[13:0]分支\u ctrl,
输出线[12:0]pc
);
程序计数器(
.clk(clk),
.重置(0),
.偏移量(分支控制[13:1]),
.mux\u select(分支\u ctrl[0]),
.pc1(pc)
);
端模
模块程序计数器(
输入线时钟、复位、多路复用器选择、,
输入导线[12:0]偏移,
输出寄存器[12:0]pc1
);
始终@(posedge clk)
如果(!重置)
开始
如果(!mux_select)
pc1我在网上看到一个代码后就把它放在了那里。我也改变了。无差异:(我通过iverilog
运行了您的代码片段,并对我的答案进行了一些代码更正。希望这有帮助…在您的新代码中,您在初始
块中得到了实例化。这是错误的…我实际上是在联机看到代码后将其放在那里的。我也更改了它。无差异:(我在iverilog
中运行了您的代码片段,并对我的答案进行了一些代码更正。希望这对您的新代码有所帮助……在初始
块中有实例化。这是错误的。。。
module inst_line_buf (
input wire from_LS,clk,fetch_ctrl,dec_ctrl,
hmic_ctrl,to_if1,to_if2,flush_ctrl,
input wire [13:0] branch_ctrl,
output wire [12:0] pc
);
program_counter pctr (
.clk(clk),
.reset(0),
.offset(branch_ctrl[13:1]),
.mux_select(branch_ctrl[0]),
.pc1(pc)
);
endmodule
module program_counter (
input wire clk, reset, mux_select,
input wire [12:0] offset,
output reg [12:0] pc1
);
always @ (posedge clk)
if (!reset)
begin
if (!mux_select)
pc1 <= pc1+8;
else
pc1 <= pc1+offset;
end
else
pc1 <= 0;
endmodule