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Readd dont-care extension of C instructions

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Markus Wegmann 2016-12-31 18:10:43 +01:00
parent 7a8123bddb
commit 793c996492
1 changed files with 3 additions and 3 deletions
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6
prefetch_buffer_small.sv
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@ -114,9 +114,9 @@ module riscv_prefetch_buffer_small
begin
unique case (instruction_format )
FULL_INSTR_ALIGNED: rdata_o = instr_rdata_i;
C_INSTR_ALIGNED_DIRECT: rdata_o = {16'h0000, instr_rdata_i[15:0]};
C_INSTR_MISALIGNED_DIRECT: rdata_o = {16'h0000, instr_rdata_i[31:16]};
C_INSTR_IN_REG_OR_FIRST_FETCH: rdata_o = {16'h0000, last_fetch_rdata_Q};
C_INSTR_ALIGNED_DIRECT: rdata_o = {16'hxxxx, instr_rdata_i[15:0]};
C_INSTR_MISALIGNED_DIRECT: rdata_o = {16'hxxxx, instr_rdata_i[31:16]};
C_INSTR_IN_REG_OR_FIRST_FETCH: rdata_o = {16'hxxxx, last_fetch_rdata_Q};
INSTR_IN_REG: rdata_o = {instr_rdata_i[15:0], last_fetch_rdata_Q};
default: rdata_o = instr_rdata_i;
endcase