Github_Repos/cvw
1
0
Fork 1
mirror of https://github.com/openhwgroup/cvw synced 2025-02-11 06:05:49 +00:00
Code Issues Packages Projects Releases Wiki Activity

Update extend.sv

Browse Source 
Program clean up
This commit is contained in:
Harshini Srinath 2023-06-12 12:15:33 -07:00 committed by GitHub
parent 1d24a9c912
commit 304adcb9b0
1 changed files with 3 additions and 3 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
src/ieu/extend.sv
View File

@ -30,7 +30,7 @@
module extend #(parameter XLEN, A_SUPPORTED) (
input logic [31:7] InstrD, // All instruction bits except opcode (lower 7 bits)
input logic [2:0] ImmSrcD, // Select what kind of extension to perform
output logic [XLEN-1:0 ] ImmExtD); // Extended immediate
output logic [XLEN-1:0] ImmExtD); // Extended immediate
localparam [XLEN-1:0] undefined = {(XLEN){1'bx}}; // could change to 0 after debug
@ -45,10 +45,10 @@ module extend #(parameter XLEN, A_SUPPORTED) (
// J-type (jal)
3'b011: ImmExtD = {{(XLEN-20){InstrD[31]}}, InstrD[19:12], InstrD[20], InstrD[30:21], 1'b0};
// U-type (lui, auipc)
3'b100: ImmExtD = {{(XLEN-31){InstrD[31]}}, InstrD[30:12], 12'b0};
3'b100: ImmExtD = {{(XLEN-31){InstrD[31]}}, InstrD[30:12], 12'b0};
// Store Conditional: zero offset
3'b101: if (A_SUPPORTED) ImmExtD = 0;
else ImmExtD = undefined;
else ImmExtD = undefined;
default: ImmExtD = undefined; // undefined
endcase
endmodule