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Added RV32D extension

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This commit is contained in:
Eyck Jentzsch
2018-04-24 15:33:21 +02:00
parent 48ad30dcae
commit ce98e2ad31
13 changed files with 2452 additions and 276 deletions
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298
riscv/gen_input/RV32D.core_desc Normal file
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@ -0,0 +1,298 @@
import "RV32IBase.core_desc"
InsructionSet RV32D extends RV32IBase{
constants {
FLEN, FFLAG_MASK
}
registers {
[31:0] F[FLEN], FCSR[32]
}
instructions{
FLD {
encoding: imm[11:0]s | rs1[4:0] | b011 | rd[4:0] | b0000111;
args_disass:"f%rd$d, %imm%(x%rs1$d)";
val offs[XLEN] <= X[rs1]+imm;
val res[64] <= MEM[offs]{64};
if(FLEN==64)
F[rd] <= res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<64) | res;
}
}
FSD {
encoding: imm[11:5]s | rs2[4:0] | rs1[4:0] | b011 | imm[4:0]s | b0100111;
args_disass:"f%rs2$d, %imm%(x%rs1$d)";
val offs[XLEN] <= X[rs1]+imm;
MEM[offs]{64}<=F[rs2]{64};
}
FMADD.D {
encoding: rs3[4:0] | b01 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1000011;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d, f%rs3$d";
//F[rd]f<= F[rs1]f * F[rs2]f + F[rs3]f;
val res[64] <= fdispatch_fmadd_d(F[rs1]{64}, F[rs2]{64}, F[rs3]{64}, zext(0, 64), choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==64)
F[rd] <= res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<64) | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FMSUB.D {
encoding: rs3[4:0] | b01 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1000111;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d, f%rs3$d";
//F[rd]f<=F[rs1]f * F[rs2]f - F[rs3]f;
val res[64] <= fdispatch_fmadd_d(F[rs1]{64}, F[rs2]{64}, F[rs3]{64}, zext(1, 32), choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==64)
F[rd] <= res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<64) | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FNMADD.D {
encoding: rs3[4:0] | b01 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1001111;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d, f%rs3$d";
//F[rd]f<=-F[rs1]f * F[rs2]f + F[rs3]f;
val res[64] <= fdispatch_fmadd_d(F[rs1]{64}, F[rs2]{64}, F[rs3]{64}, zext(2, 32), choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==64)
F[rd] <= res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<64) | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FNMSUB.D {
encoding: rs3[4:0] | b01 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1001011;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d, f%rs3$d";
//F[rd]f<=-F[rs1]f * F[rs2]f - F[rs3]f;
val res[64] <= fdispatch_fmadd_d(F[rs1]{64}, F[rs2]{64}, F[rs3]{64}, zext(3, 32), choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==64)
F[rd] <= res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<64) | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FADD.D {
encoding: b0000001 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d";
// F[rd]f <= F[rs1]f + F[rs2]f;
val res[64] <= fdispatch_fadd_d(F[rs1]{64}, F[rs2]{64}, choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==64)
F[rd] <= res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<64) | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FSUB.D {
encoding: b0000101 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d";
// F[rd]f <= F[rs1]f - F[rs2]f;
val res[64] <= fdispatch_fsub_d(F[rs1]{64}, F[rs2]{64}, choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==64)
F[rd] <= res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<64) | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FMUL.D {
encoding: b0001001 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d";
// F[rd]f <= F[rs1]f * F[rs2]f;
val res[64] <= fdispatch_fmul_d(F[rs1]{64}, F[rs2]{64}, choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==64)
F[rd] <= res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<64) | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FDIV.D {
encoding: b0001101 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d";
// F[rd]f <= F[rs1]f / F[rs2]f;
val res[64] <= fdispatch_fdiv_d(F[rs1]{64}, F[rs2]{64}, choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==64)
F[rd] <= res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<64) | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FSQRT.D {
encoding: b0101101 | b00000 | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d";
//F[rd]f<=sqrt(F[rs1]f);
val res[64] <= fdispatch_fsqrt_d(F[rs1]{64}, choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==64)
F[rd] <= res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<64) | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FSGNJ.D {
encoding: b0010001 | rs2[4:0] | rs1[4:0] | b000 | rd[4:0] | b1010011;
args_disass:"f%rd$d, f%rs1$d, f%rs2$d";
val res[64] <= (F[rs1]{64} & 0x7fffffff) | (F[rs2]{64} & 0x80000000);
if(FLEN==64)
F[rd] <= res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<64) | res;
}
}
FSGNJN.D {
encoding: b0010001 | rs2[4:0] | rs1[4:0] | b001 | rd[4:0] | b1010011;
args_disass:"f%rd$d, f%rs1$d, f%rs2$d";
val res[64] <= (F[rs1]{64} & 0x7fffffff) | (~F[rs2]{64} & 0x80000000);
if(FLEN==64)
F[rd] <= res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<64) | res;
}
}
FSGNJX.D {
encoding: b0010001 | rs2[4:0] | rs1[4:0] | b010 | rd[4:0] | b1010011;
args_disass:"f%rd$d, f%rs1$d, f%rs2$d";
val res[64] <= F[rs1]{64} ^ (F[rs2]{64} & 0x80000000);
if(FLEN==64)
F[rd] <= res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<64) | res;
}
}
FMIN.D {
encoding: b0010101 | rs2[4:0] | rs1[4:0] | b000 | rd[4:0] | b1010011;
args_disass:"f%rd$d, f%rs1$d, f%rs2$d";
//F[rd]f<= choose(F[rs1]f<F[rs2]f, F[rs1]f, F[rs2]f);
val res[64] <= fdispatch_fsel_d(F[rs1]{64}, F[rs2]{64}, zext(0, 32));
if(FLEN==64)
F[rd] <= res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<64) | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FMAX.D {
encoding: b0010101 | rs2[4:0] | rs1[4:0] | b001 | rd[4:0] | b1010011;
args_disass:"f%rd$d, f%rs1$d, f%rs2$d";
//F[rd]f<= choose(F[rs1]f>F[rs2]f, F[rs1]f, F[rs2]f);
val res[64] <= fdispatch_fsel_d(F[rs1]{64}, F[rs2]{64}, zext(1, 32));
if(FLEN==64)
F[rd] <= res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<64) | res;
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FCVT.S.D {
encoding: b0100000 | b00001 | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
args_disass:"f%rd$d, f%rs1$d";
val res[32] <= fdispatch_fconv_d2f(F[rs1], rm{8});
// NaN boxing
val upper[FLEN] <= -1;
F[rd] <= upper<<32 | zext(res, FLEN);
}
FCVT.D.S {
encoding: b0100001 | b00000 | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
args_disass:"f%rd$d, f%rs1$d";
val res[64] <= fdispatch_fconv_f2d(F[rs1]{32}, rm{8});
if(FLEN==64){
F[rd] <= res;
} else {
val upper[FLEN] <= -1;
F[rd] <= (upper<<64) | res;
}
}
FEQ.D {
encoding: b1010001 | rs2[4:0] | rs1[4:0] | b010 | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d";
X[rd]<=fdispatch_fcmp_d(F[rs1]{64}, F[rs2]{64}, zext(0, 32));
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FLT.D {
encoding: b1010001 | rs2[4:0] | rs1[4:0] | b001 | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d";
X[rd]<=fdispatch_fcmp_d(F[rs1]{64}, F[rs2]{64}, zext(2, 32));
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FLE.D {
encoding: b1010001 | rs2[4:0] | rs1[4:0] | b000 | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d";
X[rd]<=fdispatch_fcmp_d(F[rs1]{64}, F[rs2]{64}, zext(1, 32));
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FCLASS.D {
encoding: b1110001 | b00000 | rs1[4:0] | b001 | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d";
X[rd]<=fdispatch_fclass_d(F[rs1]{64});
}
FCVT.W.D {
encoding: b1100001 | b00000 | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d";
X[rd]<= sext(fdispatch_fcvt_d(F[rs1]{64}, zext(0, 32), rm{8}), XLEN);
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FCVT.WU.D {
encoding: b1100001 | b00001 | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d";
X[rd]<= zext(fdispatch_fcvt_d(F[rs1]{64}, zext(1, 32), rm{8}), XLEN);
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FCVT.D.W {
encoding: b1101001 | b00000 | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
args_disass:"f%rd$d, x%rs1$d";
val res[64] <= fdispatch_fcvt_d(sext(X[rs1],64), zext(2, 32), rm{8});
if(FLEN==64)
F[rd] <= res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<64) | res;
}
}
FCVT.D.WU {
encoding: b1101001 | b00001 | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
args_disass:"f%rd$d, x%rs1$d";
val res[64] <=fdispatch_fcvt_d(zext(X[rs1],64), zext(3,32), rm{8});
if(FLEN==64)
F[rd] <= res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<64) | res;
}
}
}
}

118
riscv/gen_input/RV32F.core_desc
View File

@ -15,9 +15,9 @@ InsructionSet RV32F extends RV32IBase{
val res[32] <= MEM[offs]{32};
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= (-1<<31);
F[rd] <= upper*2 | res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<32) | zext(res, FLEN);
}
}
FSW {
@ -33,9 +33,9 @@ InsructionSet RV32F extends RV32IBase{
val res[32] <= fdispatch_fmadd_s(F[rs1]{32}, F[rs2]{32}, F[rs3]{32}, zext(0, 32), choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= (-1<<31);
F[rd] <= upper*2 | res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<32) | zext(res, FLEN);
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
@ -47,9 +47,9 @@ InsructionSet RV32F extends RV32IBase{
val res[32] <= fdispatch_fmadd_s(F[rs1]{32}, F[rs2]{32}, F[rs3]{32}, zext(1, 32), choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= (-1<<31);
F[rd] <= upper*2 | res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<32) | zext(res, FLEN);
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
@ -61,9 +61,9 @@ InsructionSet RV32F extends RV32IBase{
val res[32] <= fdispatch_fmadd_s(F[rs1]{32}, F[rs2]{32}, F[rs3]{32}, zext(2, 32), choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= (-1<<31);
F[rd] <= upper*2 | res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<32) | zext(res, FLEN);
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
@ -75,79 +75,79 @@ InsructionSet RV32F extends RV32IBase{
val res[32] <= fdispatch_fmadd_s(F[rs1]{32}, F[rs2]{32}, F[rs3]{32}, zext(3, 32), choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= (-1<<31);
F[rd] <= upper*2 | res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<32) | zext(res, FLEN);
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FADD.S {
encoding: b0000000 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d";
args_disass:"f%rd$d, f%rs1$d, f%rs2$d";
// F[rd]f <= F[rs1]f + F[rs2]f;
val res[32] <= fdispatch_fadd_s(F[rs1]{32}, F[rs2]{32}, choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= (-1<<31);
F[rd] <= upper*2 | res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<32) | zext(res, FLEN);
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FSUB.S {
encoding: b0000100 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d";
args_disass:"f%rd$d, f%rs1$d, f%rs2$d";
// F[rd]f <= F[rs1]f - F[rs2]f;
val res[32] <= fdispatch_fsub_s(F[rs1]{32}, F[rs2]{32}, choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<32) | zext(res, FLEN);
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FMUL.S {
encoding: b0001000 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d";
args_disass:"f%rd$d, f%rs1$d, f%rs2$d";
// F[rd]f <= F[rs1]f * F[rs2]f;
val res[32] <= fdispatch_fmul_s(F[rs1]{32}, F[rs2]{32}, choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<32) | zext(res, FLEN);
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FDIV.S {
encoding: b0001100 | rs2[4:0] | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d, f%rs2$d";
args_disass:"f%rd$d, f%rs1$d, f%rs2$d";
// F[rd]f <= F[rs1]f / F[rs2]f;
val res[32] <= fdispatch_fdiv_s(F[rs1]{32}, F[rs2]{32}, choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<32) | zext(res, FLEN);
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
}
FSQRT.S {
encoding: b0101100 | b00000 | rs1[4:0] | rm[2:0] | rd[4:0] | b1010011;
args_disass:"x%rd$d, f%rs1$d";
args_disass:"f%rd$d, f%rs1$d";
//F[rd]f<=sqrt(F[rs1]f);
val res[32] <= fdispatch_fsqrt_s(F[rs1]{32}, choose(rm<7, rm{8}, FCSR{8}));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<32) | zext(res, FLEN);
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
@ -158,9 +158,9 @@ InsructionSet RV32F extends RV32IBase{
val res[32] <= (F[rs1]{32} & 0x7fffffff) | (F[rs2]{32} & 0x80000000);
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<32) | zext(res, FLEN);
}
}
FSGNJN.S {
@ -169,9 +169,9 @@ InsructionSet RV32F extends RV32IBase{
val res[32] <= (F[rs1]{32} & 0x7fffffff) | (~F[rs2]{32} & 0x80000000);
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<32) | zext(res, FLEN);
}
}
FSGNJX.S {
@ -180,9 +180,9 @@ InsructionSet RV32F extends RV32IBase{
val res[32] <= F[rs1]{32} ^ (F[rs2]{32} & 0x80000000);
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<32) | zext(res, FLEN);
}
}
FMIN.S {
@ -192,9 +192,9 @@ InsructionSet RV32F extends RV32IBase{
val res[32] <= fdispatch_fsel_s(F[rs1]{32}, F[rs2]{32}, zext(0, 32));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<32) | zext(res, FLEN);
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
@ -206,9 +206,9 @@ InsructionSet RV32F extends RV32IBase{
val res[32] <= fdispatch_fsel_s(F[rs1]{32}, F[rs2]{32}, zext(1, 32));
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<32) | zext(res, FLEN);
}
val flags[32] <= fdispatch_fget_flags();
FCSR <= (FCSR & ~FFLAG_MASK) + flags{5};
@ -259,9 +259,9 @@ InsructionSet RV32F extends RV32IBase{
val res[32] <= fdispatch_fcvt_s(X[rs1]{32}, zext(2, 32), rm{8});
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<32) | zext(res, FLEN);
}
}
FCVT.S.WU {
@ -270,9 +270,9 @@ InsructionSet RV32F extends RV32IBase{
val res[32] <=fdispatch_fcvt_s(X[rs1]{32}, zext(3,32), rm{8});
if(FLEN==32)
F[rd] <= res;
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | res;
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<32) | zext(res, FLEN);
}
}
FMV.X.W {
@ -285,9 +285,9 @@ InsructionSet RV32F extends RV32IBase{
args_disass:"f%rd$d, x%rs1$d";
if(FLEN==32)
F[rd] <= X[rs1];
else {
val upper[FLEN] <= -1<<31;
F[rd] <= upper*2 | X[rs1];
else { // NaN boxing
val upper[FLEN] <= -1;
F[rd] <= (upper<<32) | zext(X[rs1], FLEN);
}
}
}

5
riscv/gen_input/minres_rv.core_desc
View File

@ -3,6 +3,7 @@ import "RV32M.core_desc"
import "RV32A.core_desc"
import "RV32C.core_desc"
import "RV32F.core_desc"
import "RV32D.core_desc"
import "RV64IBase.core_desc"
//import "RV64M.core_desc"
import "RV64A.core_desc"
@ -26,10 +27,10 @@ Core RV32IMAC provides RV32IBase, RV32M, RV32A, RV32IC {
}
}
Core RV32GC provides RV32IBase, RV32M, RV32A, RV32IC, RV32F, RV32FC {
Core RV32GC provides RV32IBase, RV32M, RV32A, RV32IC, RV32F, RV32FC, RV32D {
constants {
XLEN:=32;
FLEN:=32;
FLEN:=64;
XLEN2:=64;
XLEN_BIT_MASK:=0x1f;
PCLEN:=32;

5
riscv/gen_input/templates/incl-CORENAME.h.gtl
View File

@ -56,6 +56,8 @@ struct traits<${coreDef.name.toLowerCase()}> {
enum constants {${coreDef.constants.collect{c -> c.name+"="+c.value}.join(', ')}};
constexpr static unsigned FP_REGS_SIZE = ${coreDef.constants.find {it.name=='FLEN'}?.value?:0};
enum reg_e {<%
allRegs.each { reg ->
if( reg instanceof RegisterFile) {
@ -99,9 +101,6 @@ struct traits<${coreDef.name.toLowerCase()}> {
enum sreg_flag_e {FLAGS};
enum mem_type_e {${allSpaces.collect{s -> s.name}.join(', ')}};
constexpr static bool has_fp_regs = ${allRegs.find {it.name=='FCSR'}!= null ?'true':'false'};
};
struct ${coreDef.name.toLowerCase()}: public arch_if {

4
riscv/gen_input/templates/vm-vm_CORENAME.cpp.gtl
View File

@ -50,7 +50,7 @@
namespace iss {
namespace vm {
namespace fp_impl{
void add_fp_functions_2_module(llvm::Module *mod);
void add_fp_functions_2_module(llvm::Module *, unsigned);
}
}
@ -89,7 +89,7 @@ protected:
void setup_module(llvm::Module* m) override {
super::setup_module(m);
vm::fp_impl::add_fp_functions_2_module(m);
vm::fp_impl::add_fp_functions_2_module(m, traits<ARCH>::FP_REGS_SIZE);
}
inline llvm::Value *gen_choose(llvm::Value *cond, llvm::Value *trueVal, llvm::Value *falseVal,