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Fixed bug with the compressed immediate generation. Several formats should zero extend.

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This commit is contained in:
Ross Thompson 2021-07-26 11:55:31 -05:00
parent ef55b30e99
commit 79ebc53977
1 changed files with 5 additions and 5 deletions
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10
wally-pipelined/src/ifu/decompress.sv
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@ -53,10 +53,10 @@ module decompress (
assign rdp = {2'b01, instr16[4:2]};
// many compressed immediate formats
assign immCILSP = {{4{instr16[3]}}, instr16[3:2], instr16[12], instr16[6:4], 2'b00};
assign immCILSPD = {{3{instr16[4]}}, instr16[4:2], instr16[12], instr16[6:5], 3'b000};
assign immCSS = {{4{instr16[8]}}, instr16[8:7], instr16[12:9], 2'b00};
assign immCSSD = {{3{instr16[9]}}, instr16[9:7], instr16[12:10], 3'b000};
assign immCILSP = {4'b0000, instr16[3:2], instr16[12], instr16[6:4], 2'b00};
assign immCILSPD = {3'b000, instr16[4:2], instr16[12], instr16[6:5], 3'b000};
assign immCSS = {4'b0000, instr16[8:7], instr16[12:9], 2'b00};
assign immCSSD = {3'b000, instr16[9:7], instr16[12:10], 3'b000};
assign immCL = {5'b0, instr16[5], instr16[12:10], instr16[6], 2'b00};
assign immCLD = {4'b0, instr16[6:5], instr16[12:10], 3'b000};
assign immCS = {5'b0, instr16[5], instr16[12:10], instr16[6], 2'b00};
@ -175,4 +175,4 @@ module decompress (
end
endgenerate
endmodule