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decode op_mod optimization

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This commit is contained in:
Blaise Tine
2020-08-24 02:55:14 -07:00
parent f292e5003d
commit 57971f6c76
25 changed files with 221 additions and 209 deletions
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45
hw/rtl/VX_print_instr.vh
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@@ -19,13 +19,14 @@ task print_ex_type;
endtask
task print_ex_op;
input [`EX_BITS-1:0] ex;
input [`OP_BITS-1:0] op;
input [`EX_BITS-1:0] ex_type;
input [`OP_BITS-1:0] op_type;
input [`OP_BITS-1:0] op_mod;
begin
case (ex)
case (ex_type)
`EX_ALU: begin
if (`IS_BR_OP(op)) begin
case (`BR_BITS'(op))
if (`IS_BR_MOD(op_mod)) begin
case (`BR_BITS'(op_type))
`BR_EQ: $write("BEQ");
`BR_NE: $write("BNE");
`BR_LT: $write("BLT");
@@ -42,7 +43,7 @@ task print_ex_op;
default: $write("?");
endcase
end else begin
case (`ALU_BITS'(op))
case (`ALU_BITS'(op_type))
`ALU_ADD: $write("ADD");
`ALU_SUB: $write("SUB");
`ALU_SLL: $write("SLL");
@@ -60,7 +61,7 @@ task print_ex_op;
end
end
`EX_LSU: begin
case (`LSU_BITS'(op))
case (`LSU_BITS'(op_type))
`LSU_LB: $write("LB");
`LSU_LH: $write("LH");
`LSU_LW: $write("LW");
@@ -75,7 +76,7 @@ task print_ex_op;
endcase
end
`EX_CSR: begin
case (`CSR_BITS'(op))
case (`CSR_BITS'(op_type))
`CSR_RW: $write("CSRW");
`CSR_RS: $write("CSRS");
`CSR_RC: $write("CSRC");
@@ -83,7 +84,7 @@ task print_ex_op;
endcase
end
`EX_MUL: begin
case (`MUL_BITS'(op))
case (`MUL_BITS'(op_type))
`MUL_MUL: $write("MUL");
`MUL_MULH: $write("MULH");
`MUL_MULHSU:$write("MULHSU");
@@ -96,7 +97,7 @@ task print_ex_op;
endcase
end
`EX_FPU: begin
case (`FPU_BITS'(op))
case (`FPU_BITS'(op_type))
`FPU_ADD: $write("ADD");
`FPU_SUB: $write("SUB");
`FPU_MUL: $write("MUL");
@@ -104,25 +105,29 @@ task print_ex_op;
`FPU_SQRT: $write("SQRT");
`FPU_MADD: $write("MADD");
`FPU_NMSUB: $write("NMSUB");
`FPU_NMADD: $write("NMADD");
`FPU_SGNJ: $write("SGNJ");
`FPU_SGNJN: $write("SGNJN");
`FPU_SGNJX: $write("SGNJX");
`FPU_MIN: $write("MIN");
`FPU_MAX: $write("MAX");
`FPU_NMADD: $write("NMADD");
`FPU_CVTWS: $write("CVTWS");
`FPU_CVTWUS:$write("CVTWUS");
`FPU_CVTSW: $write("CVTSW");
`FPU_CVTSWU:$write("CVTSWU");
`FPU_MVXW: $write("MVXW");
`FPU_MVWX: $write("MVWX");
`FPU_CLASS: $write("CLASS");
`FPU_CMP: $write("CMP");
`FPU_MISC: begin
case (op_mod)
0: $write("SGNJ");
1: $write("SGNJN");
2: $write("SGNJX");
3: $write("MIN");
4: $write("MAX");
5: $write("MVXW");
6: $write("MVWX");
endcase
end
default: $write("?");
endcase
end
`EX_GPU: begin
case (`GPU_BITS'(op))
case (`GPU_BITS'(op_type))
`GPU_TMC: $write("TMC");
`GPU_WSPAWN:$write("WSPAWN");
`GPU_SPLIT: $write("SPLIT");
@@ -151,4 +156,4 @@ task print_frm;
end
endtask
`endif
`endif