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Adapted descriptions to improved Core DSL and regenerated code

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This commit is contained in:
Eyck Jentzsch
2018-04-30 19:22:00 +02:00
parent 9ad29ddb64
commit 19b660962b
20 changed files with 3764 additions and 3836 deletions
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176
riscv/gen_input/RV32M.core_desc
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@ -1,97 +1,97 @@
import "RV32IBase.core_desc"
InsructionSet RV32M extends RV32IBase {
constants {
MAXLEN:=128
}
instructions{
MUL{
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b000 | rd[4:0] | b0110011;
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
if(rd != 0){
val res[MAXLEN] <= zext(X[rs1], MAXLEN) * zext(X[rs2], MAXLEN);
X[rd]<= zext(res , XLEN);
}
}
MULH {
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b001 | rd[4:0] | b0110011;
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
if(rd != 0){
val res[MAXLEN] <= sext(X[rs1], MAXLEN) * sext(X[rs2], MAXLEN);
constants {
MAXLEN:=128
}
instructions{
MUL{
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b000 | rd[4:0] | b0110011;
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
if(rd != 0){
val res[MAXLEN] <= zext(X[rs1], MAXLEN) * zext(X[rs2], MAXLEN);
X[rd]<= zext(res , XLEN);
}
}
MULH {
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b001 | rd[4:0] | b0110011;
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
if(rd != 0){
val res[MAXLEN] <= sext(X[rs1], MAXLEN) * sext(X[rs2], MAXLEN);
X[rd]<= zext(res >> XLEN, XLEN);
}
}
MULHSU {
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b010 | rd[4:0] | b0110011;
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
if(rd != 0){
}
}
MULHSU {
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b010 | rd[4:0] | b0110011;
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
if(rd != 0){
val res[MAXLEN] <= sext(X[rs1], MAXLEN) * zext(X[rs2], MAXLEN);
X[rd]<= zext(res >> XLEN, XLEN);
}
}
MULHU {
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b011 | rd[4:0] | b0110011;
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
if(rd != 0){
}
}
MULHU {
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b011 | rd[4:0] | b0110011;
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
if(rd != 0){
val res[MAXLEN] <= zext(X[rs1], MAXLEN) * zext(X[rs2], MAXLEN);
X[rd]<= zext(res >> XLEN, XLEN);
}
}
DIV {
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b100 | rd[4:0] | b0110011;
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
if(rd != 0){
if(X[rs2]!=0){
val M1[XLEN] <= -1;
val MMIN[XLEN] <= -1<<(XLEN-1);
if(X[rs1]s==MMIN's)
if(X[rs2]s==M1's)
X[rd]<=MMIN;
else
X[rd] <= X[rs1]s / X[rs2]s;
else
X[rd] <= X[rs1]s / X[rs2]s;
}else
X[rd] <= -1;
}
}
DIVU {
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b101 | rd[4:0] | b0110011;
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
if(rd != 0){
if(X[rs2]!=0)
X[rd] <= zext(X[rs1], 32) / zext(X[rs2], 32);
else
X[rd] <= -1;
}
}
REM {
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b110 | rd[4:0] | b0110011;
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
if(rd != 0){
if(X[rs2]!=0) {
val M1[XLEN] <= -1;
val MMIN[XLEN] <= -1<<(XLEN-1);
if(X[rs1]s==MMIN's)
if(X[rs2]s==M1's)
X[rd] <= 0;
else
X[rd] <= sext(X[rs1], 32) % sext(X[rs2], 32);
else
X[rd] <= sext(X[rs1], 32) % sext(X[rs2], 32);
} else
X[rd] <= X[rs1];
}
}
REMU {
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b111 | rd[4:0] | b0110011;
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
if(rd != 0){
if(X[rs2]!=0)
X[rd] <= zext(X[rs1], 32) % zext(X[rs2], 32);
else
X[rd] <= X[rs1];
}
}
}
}
}
DIV {
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b100 | rd[4:0] | b0110011;
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
if(rd != 0){
if(X[rs2]!=0){
val M1[XLEN] <= -1;
val MMIN[XLEN] <= -1<<(XLEN-1);
if(X[rs1]s==MMIN's)
if(X[rs2]s==M1's)
X[rd]<=MMIN;
else
X[rd] <= X[rs1]s / X[rs2]s;
else
X[rd] <= X[rs1]s / X[rs2]s;
}else
X[rd] <= -1;
}
}
DIVU {
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b101 | rd[4:0] | b0110011;
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
if(rd != 0){
if(X[rs2]!=0)
X[rd] <= zext(X[rs1], 32) / zext(X[rs2], 32);
else
X[rd] <= -1;
}
}
REM {
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b110 | rd[4:0] | b0110011;
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
if(rd != 0){
if(X[rs2]!=0) {
val M1[XLEN] <= -1;
val MMIN[XLEN] <= -1<<(XLEN-1);
if(X[rs1]s==MMIN's)
if(X[rs2]s==M1's)
X[rd] <= 0;
else
X[rd] <= sext(X[rs1], 32) % sext(X[rs2], 32);
else
X[rd] <= sext(X[rs1], 32) % sext(X[rs2], 32);
} else
X[rd] <= X[rs1];
}
}
REMU {
encoding: b0000001 | rs2[4:0] | rs1[4:0] | b111 | rd[4:0] | b0110011;
args_disass:"x%rd$d, x%rs1$d, x%rs2$d";
if(rd != 0){
if(X[rs2]!=0)
X[rd] <= zext(X[rs1], 32) % zext(X[rs2], 32);
else
X[rd] <= X[rs1];
}
}
}
}