41 lines
1.0 KiB
Plaintext
41 lines
1.0 KiB
Plaintext
import "RV64IBase.core_desc"
|
|
|
|
InsructionSet RV64M extends RV64IBase {
|
|
instructions{
|
|
MULW{
|
|
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b000 | rd[4:0] | b0111011;
|
|
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
|
|
if(rd != 0){
|
|
X[rd]<= X[rs1] * X[rs2];
|
|
}
|
|
}
|
|
DIVW {
|
|
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b100 | rd[4:0] | b0111011;
|
|
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
|
|
if(rd != 0){
|
|
X[rd] <= X[rs1]s / X[rs2]s;
|
|
}
|
|
}
|
|
DIVUW {
|
|
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b101 | rd[4:0] | b0111011;
|
|
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
|
|
if(rd != 0){
|
|
X[rd] <= X[rs1] / X[rs2];
|
|
}
|
|
}
|
|
REMW {
|
|
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b110 | rd[4:0] | b0111011;
|
|
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
|
|
if(rd != 0){
|
|
X[rd] <= X[rs1]s % X[rs2]s;
|
|
}
|
|
}
|
|
REMUW {
|
|
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b111 | rd[4:0] | b0111011;
|
|
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
|
|
if(rd != 0){
|
|
X[rd] <= X[rs1] % X[rs2];
|
|
}
|
|
}
|
|
}
|
|
} |