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updated comments in bmuctrl

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This commit is contained in:
Kevin Kim 2023-02-18 19:57:10 -08:00
parent bec2905ee5
commit 84ddb6fb54
1 changed files with 4 additions and 1 deletions
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5
src/ieu/bmu/bmuctrl.sv
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@ -64,7 +64,8 @@ module bmuctrl(
// Main Instruction Decoder // Main Instruction Decoder
always_comb always_comb
casez({OpD, Funct7D, Funct3D}) casez({OpD, Funct7D, Funct3D})
// ALUSelect_BSelect // ALUSelect_BSelect_ZBBSelect
// ZBS
17'b0010011_0100100_001: BMUControlsD = `BMUCTRLW'b111_0001_000; // bclri 17'b0010011_0100100_001: BMUControlsD = `BMUCTRLW'b111_0001_000; // bclri
17'b0010011_0100101_001: if (`XLEN == 64) 17'b0010011_0100101_001: if (`XLEN == 64)
BMUControlsD = `BMUCTRLW'b111_0001_000; // bclri (rv64) BMUControlsD = `BMUCTRLW'b111_0001_000; // bclri (rv64)
@ -90,7 +91,9 @@ module bmuctrl(
17'b0110011_0110100_001: BMUControlsD = `BMUCTRLW'b100_0001_000; // binv 17'b0110011_0110100_001: BMUControlsD = `BMUCTRLW'b100_0001_000; // binv
17'b0110011_0010100_001: BMUControlsD = `BMUCTRLW'b110_0001_000; // bset 17'b0110011_0010100_001: BMUControlsD = `BMUCTRLW'b110_0001_000; // bset
17'b0?1?011_0?0000?_?01: BMUControlsD = `BMUCTRLW'b001_0000_000; // sra, srai, srl, srli, sll, slli 17'b0?1?011_0?0000?_?01: BMUControlsD = `BMUCTRLW'b001_0000_000; // sra, srai, srl, srli, sll, slli
// ZBC
17'b0110011_0000101_0??: BMUControlsD = `BMUCTRLW'b000_0010_000; // ZBC instruction 17'b0110011_0000101_0??: BMUControlsD = `BMUCTRLW'b000_0010_000; // ZBC instruction
// ZBA
17'b0110011_0010000_010: BMUControlsD = `BMUCTRLW'b000_1000_000; // sh1add 17'b0110011_0010000_010: BMUControlsD = `BMUCTRLW'b000_1000_000; // sh1add
17'b0110011_0010000_100: BMUControlsD = `BMUCTRLW'b000_1000_000; // sh2add 17'b0110011_0010000_100: BMUControlsD = `BMUCTRLW'b000_1000_000; // sh2add
17'b0110011_0010000_110: BMUControlsD = `BMUCTRLW'b000_1000_000; // sh3add 17'b0110011_0010000_110: BMUControlsD = `BMUCTRLW'b000_1000_000; // sh3add