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minor update

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This commit is contained in:
Blaise Tine 2024-07-29 17:07:01 -07:00
parent 2a9895c337
commit bce5226614
2 changed files with 6 additions and 5 deletions
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4
hw/rtl/core/VX_alu_int.sv
View file

@ -108,7 +108,7 @@ module VX_alu_int #(
2'b00: msc_result[i] = alu_in1[i] & alu_in2_imm[i]; // AND
2'b01: msc_result[i] = alu_in1[i] | alu_in2_imm[i]; // OR
2'b10: msc_result[i] = alu_in1[i] ^ alu_in2_imm[i]; // XOR
default: msc_result[i] = alu_in1[i] << alu_in2_imm[i][SHIFT_IMM_BITS-1:0]; // SLL
2'b11: msc_result[i] = alu_in1[i] << alu_in2_imm[i][SHIFT_IMM_BITS-1:0]; // SLL
endcase
end
assign msc_result_w[i] = `XLEN'($signed(alu_in1[i][31:0] << alu_in2_imm[i][4:0])); // SLLW
@ -126,7 +126,7 @@ module VX_alu_int #(
3'b100: alu_result[i] = add_result_w[i]; // ADDIW, ADDW
3'b101: alu_result[i] = sub_result_w[i]; // SUBW
3'b110: alu_result[i] = shr_result_w[i]; // SRLW, SRAW, SRLIW, SRAIW
default: alu_result[i] = msc_result_w[i]; // SLLW
3'b111: alu_result[i] = msc_result_w[i]; // SLLW
endcase
end
end

7
hw/rtl/core/VX_decode.sv
View file

@ -99,7 +99,7 @@ module VX_decode import VX_gpu_pkg::*, VX_trace_pkg::*; #(
3'h4: r_type = `INST_ALU_XOR;
3'h5: r_type = func7[5] ? `INST_ALU_SRA : `INST_ALU_SRL;
3'h6: r_type = `INST_ALU_OR;
default: r_type = `INST_ALU_AND;
3'h7: r_type = `INST_ALU_AND;
endcase
end
@ -111,7 +111,8 @@ module VX_decode import VX_gpu_pkg::*, VX_trace_pkg::*; #(
3'h4: b_type = `INST_BR_LT;
3'h5: b_type = `INST_BR_GE;
3'h6: b_type = `INST_BR_LTU;
default: b_type = `INST_BR_GEU;
3'h7: b_type = `INST_BR_GEU;
default: b_type = 'x;
endcase
end
@ -138,7 +139,7 @@ module VX_decode import VX_gpu_pkg::*, VX_trace_pkg::*; #(
3'h4: m_type = `INST_M_DIV;
3'h5: m_type = `INST_M_DIVU;
3'h6: m_type = `INST_M_REM;
default: m_type = `INST_M_REMU;
3'h7: m_type = `INST_M_REMU;
endcase
end
`endif