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Fixed fldsp decompress with rd = 0

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David Harris 2024-08-08 21:45:57 -07:00
parent c69c732723
commit 64709bccab
1 changed files with 1 additions and 2 deletions
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src/ifu/decompress.sv
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@ -151,8 +151,7 @@ module decompress import cvw::*; #(parameter cvw_t P) (
5'b10000: if (rds1 != 5'b0) begin
if (P.XLEN > 32 | ~immSH[5]) LInstrD = {1'b1, 6'b000000, immSH, rds1, 3'b001, rds1, 7'b0010011}; // c.slli; shamt[5] must be 0 in RV32C
end else if (immSH != 0) LInstrD = {1'b1, 25'b0, 7'b0010011}; // c.slli with rd = 0, immm != 0 is a HINT, treated as nop
5'b10001: if (P.ZCD_SUPPORTED)
if (rds1 != 5'b0) LInstrD = {1'b1, immCILSPD, 5'b00010, 3'b011, rds1, 7'b0000111}; // c.fldsp
5'b10001: if (P.ZCD_SUPPORTED) LInstrD = {1'b1, immCILSPD, 5'b00010, 3'b011, rds1, 7'b0000111}; // c.fldsp
5'b10010: if (rds1 != 5'b0) LInstrD = {1'b1, immCILSP, 5'b00010, 3'b010, rds1, 7'b0000011}; // c.lwsp
5'b10011: if (P.XLEN == 32) begin
if (P.ZCF_SUPPORTED) LInstrD = {1'b1, immCILSP, 5'b00010, 3'b010, rds1, 7'b0000111}; // c.flwsp