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fix nop inst 

Signed-off-by: liangkangnan <liangkangnan@163.com>
pull/1/head
liangkangnan 2020-05-07 22:40:31 +08:00
parent 22ed29a149
commit 260246f488
3 changed files with 3 additions and 2 deletions
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1
rtl/core/defines.v
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@ -110,6 +110,7 @@
`define INST_LUI 7'b0110111 `define INST_LUI 7'b0110111
`define INST_AUIPC 7'b0010111 `define INST_AUIPC 7'b0010111
`define INST_NOP 32'h00000001 `define INST_NOP 32'h00000001
`define INST_NOP_OP 7'b0000001
`define INST_MRET 32'h30200073 `define INST_MRET 32'h30200073
`define INST_RET 32'h00008067 `define INST_RET 32'h00008067

2
rtl/core/ex.v
View File

@ -1028,7 +1028,7 @@ module ex(
jump_flag = `JumpDisable; jump_flag = `JumpDisable;
reg_wdata = {inst_i[31:12], 12'b0} + inst_addr_i; reg_wdata = {inst_i[31:12], 12'b0} + inst_addr_i;
end end
`INST_NOP: begin `INST_NOP_OP: begin
jump_flag = `JumpDisable; jump_flag = `JumpDisable;
hold_flag = `HoldDisable; hold_flag = `HoldDisable;
jump_addr = `ZeroWord; jump_addr = `ZeroWord;

2
rtl/core/id.v
View File

@ -232,7 +232,7 @@ module id(
reg1_raddr_o = `ZeroReg; reg1_raddr_o = `ZeroReg;
reg2_raddr_o = `ZeroReg; reg2_raddr_o = `ZeroReg;
end end
`INST_NOP: begin `INST_NOP_OP: begin
reg_we_o = `WriteDisable; reg_we_o = `WriteDisable;
reg_waddr_o = `ZeroReg; reg_waddr_o = `ZeroReg;
reg1_raddr_o = `ZeroReg; reg1_raddr_o = `ZeroReg;