+unsigned64
+fp_sqrt(sim_cpu *cpu,
+ address_word cia,
+ unsigned64 op,
+ FP_formats fmt)
+{
+ return fp_unary(cpu, cia, &sim_fpu_sqrt, op, fmt);
+}
+
+unsigned64
+fp_rsqrt(sim_cpu *cpu,
+ address_word cia,
+ unsigned64 op,
+ FP_formats fmt)
+{
+ return fp_inv_sqrt(cpu, cia, op, fmt);
+}
+
+unsigned64
+fp_madd(sim_cpu *cpu,
+ address_word cia,
+ unsigned64 op1,
+ unsigned64 op2,
+ unsigned64 op3,
+ FP_formats fmt)
+{
+ return fp_mac(cpu, cia, &sim_fpu_add, op1, op2, op3, 0, 0, fmt);
+}
+
+unsigned64
+fp_msub(sim_cpu *cpu,
+ address_word cia,
+ unsigned64 op1,
+ unsigned64 op2,
+ unsigned64 op3,
+ FP_formats fmt)
+{
+ return fp_mac(cpu, cia, &sim_fpu_sub, op1, op2, op3, 0, 0, fmt);
+}
+
+unsigned64
+fp_nmadd(sim_cpu *cpu,
+ address_word cia,
+ unsigned64 op1,
+ unsigned64 op2,
+ unsigned64 op3,
+ FP_formats fmt)
+{
+ return fp_mac(cpu, cia, &sim_fpu_add, op1, op2, op3, 0, 1, fmt);
+}
+
+unsigned64
+fp_nmsub(sim_cpu *cpu,
+ address_word cia,
+ unsigned64 op1,
+ unsigned64 op2,
+ unsigned64 op3,
+ FP_formats fmt)
+{
+ return fp_mac(cpu, cia, &sim_fpu_sub, op1, op2, op3, 0, 1, fmt);
+}
+
+
+/* MIPS-3D ASE operations. */
+
+/* Variant of fp_binary for *r.ps MIPS-3D operations. */
+static unsigned64
+fp_binary_r(sim_cpu *cpu,
+ address_word cia,
+ int (*sim_fpu_op)(sim_fpu *, const sim_fpu *, const sim_fpu *),
+ unsigned64 op1,
+ unsigned64 op2)
+{
+ sim_fpu wop1;
+ sim_fpu wop2;
+ sim_fpu ans;
+ sim_fpu_round round = rounding_mode (GETRM ());
+ sim_fpu_denorm denorm = denorm_mode (cpu);
+ sim_fpu_status status_u, status_l;
+ unsigned64 result;
+ unsigned32 res_u, res_l;
+
+ /* The format must be fmt_ps. */
+ status_u = 0;
+ sim_fpu_32to (&wop1, FP_PS_upper (op1));
+ sim_fpu_32to (&wop2, FP_PS_lower (op1));
+ status_u |= (*sim_fpu_op) (&ans, &wop1, &wop2);
+ status_u |= sim_fpu_round_32 (&ans, round, denorm);
+ sim_fpu_to32 (&res_u, &ans);
+ status_l = 0;
+ sim_fpu_32to (&wop1, FP_PS_upper (op2));
+ sim_fpu_32to (&wop2, FP_PS_lower (op2));
+ status_l |= (*sim_fpu_op) (&ans, &wop1, &wop2);
+ status_l |= sim_fpu_round_32 (&ans, round, denorm);
+ sim_fpu_to32 (&res_l, &ans);
+ result = FP_PS_cat (res_u, res_l);
+
+ update_fcsr (cpu, cia, status_u | status_l);
+ return result;
+}
+
+unsigned64
+fp_add_r(sim_cpu *cpu,
+ address_word cia,
+ unsigned64 op1,
+ unsigned64 op2,
+ FP_formats fmt)
+{
+ return fp_binary_r (cpu, cia, &sim_fpu_add, op1, op2);
+}
+
+unsigned64
+fp_mul_r(sim_cpu *cpu,
+ address_word cia,
+ unsigned64 op1,
+ unsigned64 op2,
+ FP_formats fmt)
+{
+ return fp_binary_r (cpu, cia, &sim_fpu_mul, op1, op2);
+}
+
+#define NR_FRAC_GUARD (60)
+#define IMPLICIT_1 LSBIT64 (NR_FRAC_GUARD)
+
+static int
+fpu_inv1(sim_fpu *f, const sim_fpu *l)
+{
+ static const sim_fpu sim_fpu_one = {
+ sim_fpu_class_number, 0, IMPLICIT_1, 0
+ };
+ int status = 0;
+ sim_fpu t;
+
+ if (sim_fpu_is_zero (l))
+ {
+ *f = sim_fpu_maxfp;
+ f->sign = l->sign;
+ return sim_fpu_status_invalid_div0;
+ }
+ if (sim_fpu_is_infinity (l))
+ {
+ *f = sim_fpu_zero;
+ f->sign = l->sign;
+ return status;
+ }
+ status |= sim_fpu_div (f, &sim_fpu_one, l);
+ return status;
+}
+
+static int
+fpu_inv1_32(sim_fpu *f, const sim_fpu *l)
+{
+ if (sim_fpu_is_zero (l))
+ {
+ *f = sim_fpu_max32;
+ f->sign = l->sign;
+ return sim_fpu_status_invalid_div0;
+ }
+ return fpu_inv1 (f, l);
+}
+
+static int
+fpu_inv1_64(sim_fpu *f, const sim_fpu *l)
+{
+ if (sim_fpu_is_zero (l))
+ {
+ *f = sim_fpu_max64;
+ f->sign = l->sign;
+ return sim_fpu_status_invalid_div0;
+ }
+ return fpu_inv1 (f, l);
+}
+
+unsigned64
+fp_recip1(sim_cpu *cpu,
+ address_word cia,
+ unsigned64 op,
+ FP_formats fmt)
+{
projects / deliverable / binutils-gdb.git / blobdiff