ppc: Move classic fp ops out of translate.c

Makes things a bit more manageable

Signed-off-by: Benjamin Herrenschmidt <benh@kernel.crashing.org>
Signed-off-by: David Gibson <david@gibson.dropbear.id.au>

2 files changed, 1209 insertions, 0 deletions

diff --git a/target-ppc/translate/fp-impl.c b/target-ppc/translate/fp-impl.c
new file mode 100644
index 0000000..2abc386
--- /dev/null
+++ b/target-ppc/translate/fp-impl.c
@@ -0,0 +1,1098 @@
+/*
+ * translate-fp.c
+ *
+ * Standard FPU translation
+ */
+
+static inline void gen_reset_fpstatus(void)
+{
+    gen_helper_reset_fpstatus(cpu_env);
+}
+
+static inline void gen_compute_fprf(TCGv_i64 arg)
+{
+    gen_helper_compute_fprf(cpu_env, arg);
+    gen_helper_float_check_status(cpu_env);
+}
+
+#if defined(TARGET_PPC64)
+static void gen_set_cr1_from_fpscr(DisasContext *ctx)
+{
+    TCGv_i32 tmp = tcg_temp_new_i32();
+    tcg_gen_trunc_tl_i32(tmp, cpu_fpscr);
+    tcg_gen_shri_i32(cpu_crf[1], tmp, 28);
+    tcg_temp_free_i32(tmp);
+}
+#else
+static void gen_set_cr1_from_fpscr(DisasContext *ctx)
+{
+    tcg_gen_shri_tl(cpu_crf[1], cpu_fpscr, 28);
+}
+#endif
+
+/***                       Floating-Point arithmetic                       ***/
+#define _GEN_FLOAT_ACB(name, op, op1, op2, isfloat, set_fprf, type)           \
+static void gen_f##name(DisasContext *ctx)                                    \
+{                                                                             \
+    if (unlikely(!ctx->fpu_enabled)) {                                        \
+        gen_exception(ctx, POWERPC_EXCP_FPU);                                 \
+        return;                                                               \
+    }                                                                         \
+    /* NIP cannot be restored if the memory exception comes from an helper */ \
+    gen_update_nip(ctx, ctx->nip - 4);                                        \
+    gen_reset_fpstatus();                                                     \
+    gen_helper_f##op(cpu_fpr[rD(ctx->opcode)], cpu_env,                       \
+                     cpu_fpr[rA(ctx->opcode)],                                \
+                     cpu_fpr[rC(ctx->opcode)], cpu_fpr[rB(ctx->opcode)]);     \
+    if (isfloat) {                                                            \
+        gen_helper_frsp(cpu_fpr[rD(ctx->opcode)], cpu_env,                    \
+                        cpu_fpr[rD(ctx->opcode)]);                            \
+    }                                                                         \
+    if (set_fprf) {                                                           \
+        gen_compute_fprf(cpu_fpr[rD(ctx->opcode)]);                           \
+    }                                                                         \
+    if (unlikely(Rc(ctx->opcode) != 0)) {                                     \
+        gen_set_cr1_from_fpscr(ctx);                                          \
+    }                                                                         \
+}
+
+#define GEN_FLOAT_ACB(name, op2, set_fprf, type)                              \
+_GEN_FLOAT_ACB(name, name, 0x3F, op2, 0, set_fprf, type);                     \
+_GEN_FLOAT_ACB(name##s, name, 0x3B, op2, 1, set_fprf, type);
+
+#define _GEN_FLOAT_AB(name, op, op1, op2, inval, isfloat, set_fprf, type)     \
+static void gen_f##name(DisasContext *ctx)                                    \
+{                                                                             \
+    if (unlikely(!ctx->fpu_enabled)) {                                        \
+        gen_exception(ctx, POWERPC_EXCP_FPU);                                 \
+        return;                                                               \
+    }                                                                         \
+    /* NIP cannot be restored if the memory exception comes from an helper */ \
+    gen_update_nip(ctx, ctx->nip - 4);                                        \
+    gen_reset_fpstatus();                                                     \
+    gen_helper_f##op(cpu_fpr[rD(ctx->opcode)], cpu_env,                       \
+                     cpu_fpr[rA(ctx->opcode)],                                \
+                     cpu_fpr[rB(ctx->opcode)]);                               \
+    if (isfloat) {                                                            \
+        gen_helper_frsp(cpu_fpr[rD(ctx->opcode)], cpu_env,                    \
+                        cpu_fpr[rD(ctx->opcode)]);                            \
+    }                                                                         \
+    if (set_fprf) {                                                           \
+        gen_compute_fprf(cpu_fpr[rD(ctx->opcode)]);                           \
+    }                                                                         \
+    if (unlikely(Rc(ctx->opcode) != 0)) {                                     \
+        gen_set_cr1_from_fpscr(ctx);                                          \
+    }                                                                         \
+}
+#define GEN_FLOAT_AB(name, op2, inval, set_fprf, type)                        \
+_GEN_FLOAT_AB(name, name, 0x3F, op2, inval, 0, set_fprf, type);               \
+_GEN_FLOAT_AB(name##s, name, 0x3B, op2, inval, 1, set_fprf, type);
+
+#define _GEN_FLOAT_AC(name, op, op1, op2, inval, isfloat, set_fprf, type)     \
+static void gen_f##name(DisasContext *ctx)                                    \
+{                                                                             \
+    if (unlikely(!ctx->fpu_enabled)) {                                        \
+        gen_exception(ctx, POWERPC_EXCP_FPU);                                 \
+        return;                                                               \
+    }                                                                         \
+    /* NIP cannot be restored if the memory exception comes from an helper */ \
+    gen_update_nip(ctx, ctx->nip - 4);                                        \
+    gen_reset_fpstatus();                                                     \
+    gen_helper_f##op(cpu_fpr[rD(ctx->opcode)], cpu_env,                       \
+                     cpu_fpr[rA(ctx->opcode)],                                \
+                     cpu_fpr[rC(ctx->opcode)]);                               \
+    if (isfloat) {                                                            \
+        gen_helper_frsp(cpu_fpr[rD(ctx->opcode)], cpu_env,                    \
+                        cpu_fpr[rD(ctx->opcode)]);                            \
+    }                                                                         \
+    if (set_fprf) {                                                           \
+        gen_compute_fprf(cpu_fpr[rD(ctx->opcode)]);                           \
+    }                                                                         \
+    if (unlikely(Rc(ctx->opcode) != 0)) {                                     \
+        gen_set_cr1_from_fpscr(ctx);                                          \
+    }                                                                         \
+}
+#define GEN_FLOAT_AC(name, op2, inval, set_fprf, type)                        \
+_GEN_FLOAT_AC(name, name, 0x3F, op2, inval, 0, set_fprf, type);               \
+_GEN_FLOAT_AC(name##s, name, 0x3B, op2, inval, 1, set_fprf, type);
+
+#define GEN_FLOAT_B(name, op2, op3, set_fprf, type)                           \
+static void gen_f##name(DisasContext *ctx)                                    \
+{                                                                             \
+    if (unlikely(!ctx->fpu_enabled)) {                                        \
+        gen_exception(ctx, POWERPC_EXCP_FPU);                                 \
+        return;                                                               \
+    }                                                                         \
+    /* NIP cannot be restored if the memory exception comes from an helper */ \
+    gen_update_nip(ctx, ctx->nip - 4);                                        \
+    gen_reset_fpstatus();                                                     \
+    gen_helper_f##name(cpu_fpr[rD(ctx->opcode)], cpu_env,                     \
+                       cpu_fpr[rB(ctx->opcode)]);                             \
+    if (set_fprf) {                                                           \
+        gen_compute_fprf(cpu_fpr[rD(ctx->opcode)]);                           \
+    }                                                                         \
+    if (unlikely(Rc(ctx->opcode) != 0)) {                                     \
+        gen_set_cr1_from_fpscr(ctx);                                          \
+    }                                                                         \
+}
+
+#define GEN_FLOAT_BS(name, op1, op2, set_fprf, type)                          \
+static void gen_f##name(DisasContext *ctx)                                    \
+{                                                                             \
+    if (unlikely(!ctx->fpu_enabled)) {                                        \
+        gen_exception(ctx, POWERPC_EXCP_FPU);                                 \
+        return;                                                               \
+    }                                                                         \
+    /* NIP cannot be restored if the memory exception comes from an helper */ \
+    gen_update_nip(ctx, ctx->nip - 4);                                        \
+    gen_reset_fpstatus();                                                     \
+    gen_helper_f##name(cpu_fpr[rD(ctx->opcode)], cpu_env,                     \
+                       cpu_fpr[rB(ctx->opcode)]);                             \
+    if (set_fprf) {                                                           \
+        gen_compute_fprf(cpu_fpr[rD(ctx->opcode)]);                           \
+    }                                                                         \
+    if (unlikely(Rc(ctx->opcode) != 0)) {                                     \
+        gen_set_cr1_from_fpscr(ctx);                                          \
+    }                                                                         \
+}
+
+/* fadd - fadds */
+GEN_FLOAT_AB(add, 0x15, 0x000007C0, 1, PPC_FLOAT);
+/* fdiv - fdivs */
+GEN_FLOAT_AB(div, 0x12, 0x000007C0, 1, PPC_FLOAT);
+/* fmul - fmuls */
+GEN_FLOAT_AC(mul, 0x19, 0x0000F800, 1, PPC_FLOAT);
+
+/* fre */
+GEN_FLOAT_BS(re, 0x3F, 0x18, 1, PPC_FLOAT_EXT);
+
+/* fres */
+GEN_FLOAT_BS(res, 0x3B, 0x18, 1, PPC_FLOAT_FRES);
+
+/* frsqrte */
+GEN_FLOAT_BS(rsqrte, 0x3F, 0x1A, 1, PPC_FLOAT_FRSQRTE);
+
+/* frsqrtes */
+static void gen_frsqrtes(DisasContext *ctx)
+{
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    /* NIP cannot be restored if the memory exception comes from an helper */
+    gen_update_nip(ctx, ctx->nip - 4);
+    gen_reset_fpstatus();
+    gen_helper_frsqrte(cpu_fpr[rD(ctx->opcode)], cpu_env,
+                       cpu_fpr[rB(ctx->opcode)]);
+    gen_helper_frsp(cpu_fpr[rD(ctx->opcode)], cpu_env,
+                    cpu_fpr[rD(ctx->opcode)]);
+    gen_compute_fprf(cpu_fpr[rD(ctx->opcode)]);
+    if (unlikely(Rc(ctx->opcode) != 0)) {
+        gen_set_cr1_from_fpscr(ctx);
+    }
+}
+
+/* fsel */
+_GEN_FLOAT_ACB(sel, sel, 0x3F, 0x17, 0, 0, PPC_FLOAT_FSEL);
+/* fsub - fsubs */
+GEN_FLOAT_AB(sub, 0x14, 0x000007C0, 1, PPC_FLOAT);
+/* Optional: */
+
+/* fsqrt */
+static void gen_fsqrt(DisasContext *ctx)
+{
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    /* NIP cannot be restored if the memory exception comes from an helper */
+    gen_update_nip(ctx, ctx->nip - 4);
+    gen_reset_fpstatus();
+    gen_helper_fsqrt(cpu_fpr[rD(ctx->opcode)], cpu_env,
+                     cpu_fpr[rB(ctx->opcode)]);
+    gen_compute_fprf(cpu_fpr[rD(ctx->opcode)]);
+    if (unlikely(Rc(ctx->opcode) != 0)) {
+        gen_set_cr1_from_fpscr(ctx);
+    }
+}
+
+static void gen_fsqrts(DisasContext *ctx)
+{
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    /* NIP cannot be restored if the memory exception comes from an helper */
+    gen_update_nip(ctx, ctx->nip - 4);
+    gen_reset_fpstatus();
+    gen_helper_fsqrt(cpu_fpr[rD(ctx->opcode)], cpu_env,
+                     cpu_fpr[rB(ctx->opcode)]);
+    gen_helper_frsp(cpu_fpr[rD(ctx->opcode)], cpu_env,
+                    cpu_fpr[rD(ctx->opcode)]);
+    gen_compute_fprf(cpu_fpr[rD(ctx->opcode)]);
+    if (unlikely(Rc(ctx->opcode) != 0)) {
+        gen_set_cr1_from_fpscr(ctx);
+    }
+}
+
+/***                     Floating-Point multiply-and-add                   ***/
+/* fmadd - fmadds */
+GEN_FLOAT_ACB(madd, 0x1D, 1, PPC_FLOAT);
+/* fmsub - fmsubs */
+GEN_FLOAT_ACB(msub, 0x1C, 1, PPC_FLOAT);
+/* fnmadd - fnmadds */
+GEN_FLOAT_ACB(nmadd, 0x1F, 1, PPC_FLOAT);
+/* fnmsub - fnmsubs */
+GEN_FLOAT_ACB(nmsub, 0x1E, 1, PPC_FLOAT);
+
+/***                     Floating-Point round & convert                    ***/
+/* fctiw */
+GEN_FLOAT_B(ctiw, 0x0E, 0x00, 0, PPC_FLOAT);
+/* fctiwu */
+GEN_FLOAT_B(ctiwu, 0x0E, 0x04, 0, PPC2_FP_CVT_ISA206);
+/* fctiwz */
+GEN_FLOAT_B(ctiwz, 0x0F, 0x00, 0, PPC_FLOAT);
+/* fctiwuz */
+GEN_FLOAT_B(ctiwuz, 0x0F, 0x04, 0, PPC2_FP_CVT_ISA206);
+/* frsp */
+GEN_FLOAT_B(rsp, 0x0C, 0x00, 1, PPC_FLOAT);
+/* fcfid */
+GEN_FLOAT_B(cfid, 0x0E, 0x1A, 1, PPC2_FP_CVT_S64);
+/* fcfids */
+GEN_FLOAT_B(cfids, 0x0E, 0x1A, 0, PPC2_FP_CVT_ISA206);
+/* fcfidu */
+GEN_FLOAT_B(cfidu, 0x0E, 0x1E, 0, PPC2_FP_CVT_ISA206);
+/* fcfidus */
+GEN_FLOAT_B(cfidus, 0x0E, 0x1E, 0, PPC2_FP_CVT_ISA206);
+/* fctid */
+GEN_FLOAT_B(ctid, 0x0E, 0x19, 0, PPC2_FP_CVT_S64);
+/* fctidu */
+GEN_FLOAT_B(ctidu, 0x0E, 0x1D, 0, PPC2_FP_CVT_ISA206);
+/* fctidz */
+GEN_FLOAT_B(ctidz, 0x0F, 0x19, 0, PPC2_FP_CVT_S64);
+/* fctidu */
+GEN_FLOAT_B(ctiduz, 0x0F, 0x1D, 0, PPC2_FP_CVT_ISA206);
+
+/* frin */
+GEN_FLOAT_B(rin, 0x08, 0x0C, 1, PPC_FLOAT_EXT);
+/* friz */
+GEN_FLOAT_B(riz, 0x08, 0x0D, 1, PPC_FLOAT_EXT);
+/* frip */
+GEN_FLOAT_B(rip, 0x08, 0x0E, 1, PPC_FLOAT_EXT);
+/* frim */
+GEN_FLOAT_B(rim, 0x08, 0x0F, 1, PPC_FLOAT_EXT);
+
+static void gen_ftdiv(DisasContext *ctx)
+{
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    gen_helper_ftdiv(cpu_crf[crfD(ctx->opcode)], cpu_fpr[rA(ctx->opcode)],
+                     cpu_fpr[rB(ctx->opcode)]);
+}
+
+static void gen_ftsqrt(DisasContext *ctx)
+{
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    gen_helper_ftsqrt(cpu_crf[crfD(ctx->opcode)], cpu_fpr[rB(ctx->opcode)]);
+}
+
+
+
+/***                         Floating-Point compare                        ***/
+
+/* fcmpo */
+static void gen_fcmpo(DisasContext *ctx)
+{
+    TCGv_i32 crf;
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    /* NIP cannot be restored if the memory exception comes from an helper */
+    gen_update_nip(ctx, ctx->nip - 4);
+    gen_reset_fpstatus();
+    crf = tcg_const_i32(crfD(ctx->opcode));
+    gen_helper_fcmpo(cpu_env, cpu_fpr[rA(ctx->opcode)],
+                     cpu_fpr[rB(ctx->opcode)], crf);
+    tcg_temp_free_i32(crf);
+    gen_helper_float_check_status(cpu_env);
+}
+
+/* fcmpu */
+static void gen_fcmpu(DisasContext *ctx)
+{
+    TCGv_i32 crf;
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    /* NIP cannot be restored if the memory exception comes from an helper */
+    gen_update_nip(ctx, ctx->nip - 4);
+    gen_reset_fpstatus();
+    crf = tcg_const_i32(crfD(ctx->opcode));
+    gen_helper_fcmpu(cpu_env, cpu_fpr[rA(ctx->opcode)],
+                     cpu_fpr[rB(ctx->opcode)], crf);
+    tcg_temp_free_i32(crf);
+    gen_helper_float_check_status(cpu_env);
+}
+
+/***                         Floating-point move                           ***/
+/* fabs */
+/* XXX: beware that fabs never checks for NaNs nor update FPSCR */
+static void gen_fabs(DisasContext *ctx)
+{
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    tcg_gen_andi_i64(cpu_fpr[rD(ctx->opcode)], cpu_fpr[rB(ctx->opcode)],
+                     ~(1ULL << 63));
+    if (unlikely(Rc(ctx->opcode))) {
+        gen_set_cr1_from_fpscr(ctx);
+    }
+}
+
+/* fmr  - fmr. */
+/* XXX: beware that fmr never checks for NaNs nor update FPSCR */
+static void gen_fmr(DisasContext *ctx)
+{
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    tcg_gen_mov_i64(cpu_fpr[rD(ctx->opcode)], cpu_fpr[rB(ctx->opcode)]);
+    if (unlikely(Rc(ctx->opcode))) {
+        gen_set_cr1_from_fpscr(ctx);
+    }
+}
+
+/* fnabs */
+/* XXX: beware that fnabs never checks for NaNs nor update FPSCR */
+static void gen_fnabs(DisasContext *ctx)
+{
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    tcg_gen_ori_i64(cpu_fpr[rD(ctx->opcode)], cpu_fpr[rB(ctx->opcode)],
+                    1ULL << 63);
+    if (unlikely(Rc(ctx->opcode))) {
+        gen_set_cr1_from_fpscr(ctx);
+    }
+}
+
+/* fneg */
+/* XXX: beware that fneg never checks for NaNs nor update FPSCR */
+static void gen_fneg(DisasContext *ctx)
+{
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    tcg_gen_xori_i64(cpu_fpr[rD(ctx->opcode)], cpu_fpr[rB(ctx->opcode)],
+                     1ULL << 63);
+    if (unlikely(Rc(ctx->opcode))) {
+        gen_set_cr1_from_fpscr(ctx);
+    }
+}
+
+/* fcpsgn: PowerPC 2.05 specification */
+/* XXX: beware that fcpsgn never checks for NaNs nor update FPSCR */
+static void gen_fcpsgn(DisasContext *ctx)
+{
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    tcg_gen_deposit_i64(cpu_fpr[rD(ctx->opcode)], cpu_fpr[rA(ctx->opcode)],
+                        cpu_fpr[rB(ctx->opcode)], 0, 63);
+    if (unlikely(Rc(ctx->opcode))) {
+        gen_set_cr1_from_fpscr(ctx);
+    }
+}
+
+static void gen_fmrgew(DisasContext *ctx)
+{
+    TCGv_i64 b0;
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    b0 = tcg_temp_new_i64();
+    tcg_gen_shri_i64(b0, cpu_fpr[rB(ctx->opcode)], 32);
+    tcg_gen_deposit_i64(cpu_fpr[rD(ctx->opcode)], cpu_fpr[rA(ctx->opcode)],
+                        b0, 0, 32);
+    tcg_temp_free_i64(b0);
+}
+
+static void gen_fmrgow(DisasContext *ctx)
+{
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    tcg_gen_deposit_i64(cpu_fpr[rD(ctx->opcode)],
+                        cpu_fpr[rB(ctx->opcode)],
+                        cpu_fpr[rA(ctx->opcode)],
+                        32, 32);
+}
+
+/***                  Floating-Point status & ctrl register                ***/
+
+/* mcrfs */
+static void gen_mcrfs(DisasContext *ctx)
+{
+    TCGv tmp = tcg_temp_new();
+    TCGv_i32 tmask;
+    TCGv_i64 tnew_fpscr = tcg_temp_new_i64();
+    int bfa;
+    int nibble;
+    int shift;
+
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    bfa = crfS(ctx->opcode);
+    nibble = 7 - bfa;
+    shift = 4 * nibble;
+    tcg_gen_shri_tl(tmp, cpu_fpscr, shift);
+    tcg_gen_trunc_tl_i32(cpu_crf[crfD(ctx->opcode)], tmp);
+    tcg_gen_andi_i32(cpu_crf[crfD(ctx->opcode)], cpu_crf[crfD(ctx->opcode)], 0xf);
+    tcg_temp_free(tmp);
+    tcg_gen_extu_tl_i64(tnew_fpscr, cpu_fpscr);
+    /* Only the exception bits (including FX) should be cleared if read */
+    tcg_gen_andi_i64(tnew_fpscr, tnew_fpscr, ~((0xF << shift) & FP_EX_CLEAR_BITS));
+    /* FEX and VX need to be updated, so don't set fpscr directly */
+    tmask = tcg_const_i32(1 << nibble);
+    gen_helper_store_fpscr(cpu_env, tnew_fpscr, tmask);
+    tcg_temp_free_i32(tmask);
+    tcg_temp_free_i64(tnew_fpscr);
+}
+
+/* mffs */
+static void gen_mffs(DisasContext *ctx)
+{
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    gen_reset_fpstatus();
+    tcg_gen_extu_tl_i64(cpu_fpr[rD(ctx->opcode)], cpu_fpscr);
+    if (unlikely(Rc(ctx->opcode))) {
+        gen_set_cr1_from_fpscr(ctx);
+    }
+}
+
+/* mtfsb0 */
+static void gen_mtfsb0(DisasContext *ctx)
+{
+    uint8_t crb;
+
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    crb = 31 - crbD(ctx->opcode);
+    gen_reset_fpstatus();
+    if (likely(crb != FPSCR_FEX && crb != FPSCR_VX)) {
+        TCGv_i32 t0;
+        /* NIP cannot be restored if the memory exception comes from an helper */
+        gen_update_nip(ctx, ctx->nip - 4);
+        t0 = tcg_const_i32(crb);
+        gen_helper_fpscr_clrbit(cpu_env, t0);
+        tcg_temp_free_i32(t0);
+    }
+    if (unlikely(Rc(ctx->opcode) != 0)) {
+        tcg_gen_trunc_tl_i32(cpu_crf[1], cpu_fpscr);
+        tcg_gen_shri_i32(cpu_crf[1], cpu_crf[1], FPSCR_OX);
+    }
+}
+
+/* mtfsb1 */
+static void gen_mtfsb1(DisasContext *ctx)
+{
+    uint8_t crb;
+
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    crb = 31 - crbD(ctx->opcode);
+    gen_reset_fpstatus();
+    /* XXX: we pretend we can only do IEEE floating-point computations */
+    if (likely(crb != FPSCR_FEX && crb != FPSCR_VX && crb != FPSCR_NI)) {
+        TCGv_i32 t0;
+        /* NIP cannot be restored if the memory exception comes from an helper */
+        gen_update_nip(ctx, ctx->nip - 4);
+        t0 = tcg_const_i32(crb);
+        gen_helper_fpscr_setbit(cpu_env, t0);
+        tcg_temp_free_i32(t0);
+    }
+    if (unlikely(Rc(ctx->opcode) != 0)) {
+        tcg_gen_trunc_tl_i32(cpu_crf[1], cpu_fpscr);
+        tcg_gen_shri_i32(cpu_crf[1], cpu_crf[1], FPSCR_OX);
+    }
+    /* We can raise a differed exception */
+    gen_helper_float_check_status(cpu_env);
+}
+
+/* mtfsf */
+static void gen_mtfsf(DisasContext *ctx)
+{
+    TCGv_i32 t0;
+    int flm, l, w;
+
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    flm = FPFLM(ctx->opcode);
+    l = FPL(ctx->opcode);
+    w = FPW(ctx->opcode);
+    if (unlikely(w & !(ctx->insns_flags2 & PPC2_ISA205))) {
+        gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
+        return;
+    }
+    /* NIP cannot be restored if the memory exception comes from an helper */
+    gen_update_nip(ctx, ctx->nip - 4);
+    gen_reset_fpstatus();
+    if (l) {
+        t0 = tcg_const_i32((ctx->insns_flags2 & PPC2_ISA205) ? 0xffff : 0xff);
+    } else {
+        t0 = tcg_const_i32(flm << (w * 8));
+    }
+    gen_helper_store_fpscr(cpu_env, cpu_fpr[rB(ctx->opcode)], t0);
+    tcg_temp_free_i32(t0);
+    if (unlikely(Rc(ctx->opcode) != 0)) {
+        tcg_gen_trunc_tl_i32(cpu_crf[1], cpu_fpscr);
+        tcg_gen_shri_i32(cpu_crf[1], cpu_crf[1], FPSCR_OX);
+    }
+    /* We can raise a differed exception */
+    gen_helper_float_check_status(cpu_env);
+}
+
+/* mtfsfi */
+static void gen_mtfsfi(DisasContext *ctx)
+{
+    int bf, sh, w;
+    TCGv_i64 t0;
+    TCGv_i32 t1;
+
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    w = FPW(ctx->opcode);
+    bf = FPBF(ctx->opcode);
+    if (unlikely(w & !(ctx->insns_flags2 & PPC2_ISA205))) {
+        gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);
+        return;
+    }
+    sh = (8 * w) + 7 - bf;
+    /* NIP cannot be restored if the memory exception comes from an helper */
+    gen_update_nip(ctx, ctx->nip - 4);
+    gen_reset_fpstatus();
+    t0 = tcg_const_i64(((uint64_t)FPIMM(ctx->opcode)) << (4 * sh));
+    t1 = tcg_const_i32(1 << sh);
+    gen_helper_store_fpscr(cpu_env, t0, t1);
+    tcg_temp_free_i64(t0);
+    tcg_temp_free_i32(t1);
+    if (unlikely(Rc(ctx->opcode) != 0)) {
+        tcg_gen_trunc_tl_i32(cpu_crf[1], cpu_fpscr);
+        tcg_gen_shri_i32(cpu_crf[1], cpu_crf[1], FPSCR_OX);
+    }
+    /* We can raise a differed exception */
+    gen_helper_float_check_status(cpu_env);
+}
+
+/***                         Floating-point load                           ***/
+#define GEN_LDF(name, ldop, opc, type)                                        \
+static void glue(gen_, name)(DisasContext *ctx)                                       \
+{                                                                             \
+    TCGv EA;                                                                  \
+    if (unlikely(!ctx->fpu_enabled)) {                                        \
+        gen_exception(ctx, POWERPC_EXCP_FPU);                                 \
+        return;                                                               \
+    }                                                                         \
+    gen_set_access_type(ctx, ACCESS_FLOAT);                                   \
+    EA = tcg_temp_new();                                                      \
+    gen_addr_imm_index(ctx, EA, 0);                                           \
+    gen_qemu_##ldop(ctx, cpu_fpr[rD(ctx->opcode)], EA);                       \
+    tcg_temp_free(EA);                                                        \
+}
+
+#define GEN_LDUF(name, ldop, opc, type)                                       \
+static void glue(gen_, name##u)(DisasContext *ctx)                                    \
+{                                                                             \
+    TCGv EA;                                                                  \
+    if (unlikely(!ctx->fpu_enabled)) {                                        \
+        gen_exception(ctx, POWERPC_EXCP_FPU);                                 \
+        return;                                                               \
+    }                                                                         \
+    if (unlikely(rA(ctx->opcode) == 0)) {                                     \
+        gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);                   \
+        return;                                                               \
+    }                                                                         \
+    gen_set_access_type(ctx, ACCESS_FLOAT);                                   \
+    EA = tcg_temp_new();                                                      \
+    gen_addr_imm_index(ctx, EA, 0);                                           \
+    gen_qemu_##ldop(ctx, cpu_fpr[rD(ctx->opcode)], EA);                       \
+    tcg_gen_mov_tl(cpu_gpr[rA(ctx->opcode)], EA);                             \
+    tcg_temp_free(EA);                                                        \
+}
+
+#define GEN_LDUXF(name, ldop, opc, type)                                      \
+static void glue(gen_, name##ux)(DisasContext *ctx)                                   \
+{                                                                             \
+    TCGv EA;                                                                  \
+    if (unlikely(!ctx->fpu_enabled)) {                                        \
+        gen_exception(ctx, POWERPC_EXCP_FPU);                                 \
+        return;                                                               \
+    }                                                                         \
+    if (unlikely(rA(ctx->opcode) == 0)) {                                     \
+        gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);                   \
+        return;                                                               \
+    }                                                                         \
+    gen_set_access_type(ctx, ACCESS_FLOAT);                                   \
+    EA = tcg_temp_new();                                                      \
+    gen_addr_reg_index(ctx, EA);                                              \
+    gen_qemu_##ldop(ctx, cpu_fpr[rD(ctx->opcode)], EA);                       \
+    tcg_gen_mov_tl(cpu_gpr[rA(ctx->opcode)], EA);                             \
+    tcg_temp_free(EA);                                                        \
+}
+
+#define GEN_LDXF(name, ldop, opc2, opc3, type)                                \
+static void glue(gen_, name##x)(DisasContext *ctx)                                    \
+{                                                                             \
+    TCGv EA;                                                                  \
+    if (unlikely(!ctx->fpu_enabled)) {                                        \
+        gen_exception(ctx, POWERPC_EXCP_FPU);                                 \
+        return;                                                               \
+    }                                                                         \
+    gen_set_access_type(ctx, ACCESS_FLOAT);                                   \
+    EA = tcg_temp_new();                                                      \
+    gen_addr_reg_index(ctx, EA);                                              \
+    gen_qemu_##ldop(ctx, cpu_fpr[rD(ctx->opcode)], EA);                       \
+    tcg_temp_free(EA);                                                        \
+}
+
+#define GEN_LDFS(name, ldop, op, type)                                        \
+GEN_LDF(name, ldop, op | 0x20, type);                                         \
+GEN_LDUF(name, ldop, op | 0x21, type);                                        \
+GEN_LDUXF(name, ldop, op | 0x01, type);                                       \
+GEN_LDXF(name, ldop, 0x17, op | 0x00, type)
+
+static inline void gen_qemu_ld32fs(DisasContext *ctx, TCGv_i64 arg1, TCGv arg2)
+{
+    TCGv t0 = tcg_temp_new();
+    TCGv_i32 t1 = tcg_temp_new_i32();
+    gen_qemu_ld32u(ctx, t0, arg2);
+    tcg_gen_trunc_tl_i32(t1, t0);
+    tcg_temp_free(t0);
+    gen_helper_float32_to_float64(arg1, cpu_env, t1);
+    tcg_temp_free_i32(t1);
+}
+
+ /* lfd lfdu lfdux lfdx */
+GEN_LDFS(lfd, ld64, 0x12, PPC_FLOAT);
+ /* lfs lfsu lfsux lfsx */
+GEN_LDFS(lfs, ld32fs, 0x10, PPC_FLOAT);
+
+/* lfdp */
+static void gen_lfdp(DisasContext *ctx)
+{
+    TCGv EA;
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    gen_set_access_type(ctx, ACCESS_FLOAT);
+    EA = tcg_temp_new();
+    gen_addr_imm_index(ctx, EA, 0);
+    /* We only need to swap high and low halves. gen_qemu_ld64 does necessary
+       64-bit byteswap already. */
+    if (unlikely(ctx->le_mode)) {
+        gen_qemu_ld64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA);
+        tcg_gen_addi_tl(EA, EA, 8);
+        gen_qemu_ld64(ctx, cpu_fpr[rD(ctx->opcode)], EA);
+    } else {
+        gen_qemu_ld64(ctx, cpu_fpr[rD(ctx->opcode)], EA);
+        tcg_gen_addi_tl(EA, EA, 8);
+        gen_qemu_ld64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA);
+    }
+    tcg_temp_free(EA);
+}
+
+/* lfdpx */
+static void gen_lfdpx(DisasContext *ctx)
+{
+    TCGv EA;
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    gen_set_access_type(ctx, ACCESS_FLOAT);
+    EA = tcg_temp_new();
+    gen_addr_reg_index(ctx, EA);
+    /* We only need to swap high and low halves. gen_qemu_ld64 does necessary
+       64-bit byteswap already. */
+    if (unlikely(ctx->le_mode)) {
+        gen_qemu_ld64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA);
+        tcg_gen_addi_tl(EA, EA, 8);
+        gen_qemu_ld64(ctx, cpu_fpr[rD(ctx->opcode)], EA);
+    } else {
+        gen_qemu_ld64(ctx, cpu_fpr[rD(ctx->opcode)], EA);
+        tcg_gen_addi_tl(EA, EA, 8);
+        gen_qemu_ld64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA);
+    }
+    tcg_temp_free(EA);
+}
+
+/* lfiwax */
+static void gen_lfiwax(DisasContext *ctx)
+{
+    TCGv EA;
+    TCGv t0;
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    gen_set_access_type(ctx, ACCESS_FLOAT);
+    EA = tcg_temp_new();
+    t0 = tcg_temp_new();
+    gen_addr_reg_index(ctx, EA);
+    gen_qemu_ld32s(ctx, t0, EA);
+    tcg_gen_ext_tl_i64(cpu_fpr[rD(ctx->opcode)], t0);
+    tcg_temp_free(EA);
+    tcg_temp_free(t0);
+}
+
+/* lfiwzx */
+static void gen_lfiwzx(DisasContext *ctx)
+{
+    TCGv EA;
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    gen_set_access_type(ctx, ACCESS_FLOAT);
+    EA = tcg_temp_new();
+    gen_addr_reg_index(ctx, EA);
+    gen_qemu_ld32u_i64(ctx, cpu_fpr[rD(ctx->opcode)], EA);
+    tcg_temp_free(EA);
+}
+/***                         Floating-point store                          ***/
+#define GEN_STF(name, stop, opc, type)                                        \
+static void glue(gen_, name)(DisasContext *ctx)                                       \
+{                                                                             \
+    TCGv EA;                                                                  \
+    if (unlikely(!ctx->fpu_enabled)) {                                        \
+        gen_exception(ctx, POWERPC_EXCP_FPU);                                 \
+        return;                                                               \
+    }                                                                         \
+    gen_set_access_type(ctx, ACCESS_FLOAT);                                   \
+    EA = tcg_temp_new();                                                      \
+    gen_addr_imm_index(ctx, EA, 0);                                           \
+    gen_qemu_##stop(ctx, cpu_fpr[rS(ctx->opcode)], EA);                       \
+    tcg_temp_free(EA);                                                        \
+}
+
+#define GEN_STUF(name, stop, opc, type)                                       \
+static void glue(gen_, name##u)(DisasContext *ctx)                                    \
+{                                                                             \
+    TCGv EA;                                                                  \
+    if (unlikely(!ctx->fpu_enabled)) {                                        \
+        gen_exception(ctx, POWERPC_EXCP_FPU);                                 \
+        return;                                                               \
+    }                                                                         \
+    if (unlikely(rA(ctx->opcode) == 0)) {                                     \
+        gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);                   \
+        return;                                                               \
+    }                                                                         \
+    gen_set_access_type(ctx, ACCESS_FLOAT);                                   \
+    EA = tcg_temp_new();                                                      \
+    gen_addr_imm_index(ctx, EA, 0);                                           \
+    gen_qemu_##stop(ctx, cpu_fpr[rS(ctx->opcode)], EA);                       \
+    tcg_gen_mov_tl(cpu_gpr[rA(ctx->opcode)], EA);                             \
+    tcg_temp_free(EA);                                                        \
+}
+
+#define GEN_STUXF(name, stop, opc, type)                                      \
+static void glue(gen_, name##ux)(DisasContext *ctx)                                   \
+{                                                                             \
+    TCGv EA;                                                                  \
+    if (unlikely(!ctx->fpu_enabled)) {                                        \
+        gen_exception(ctx, POWERPC_EXCP_FPU);                                 \
+        return;                                                               \
+    }                                                                         \
+    if (unlikely(rA(ctx->opcode) == 0)) {                                     \
+        gen_inval_exception(ctx, POWERPC_EXCP_INVAL_INVAL);                   \
+        return;                                                               \
+    }                                                                         \
+    gen_set_access_type(ctx, ACCESS_FLOAT);                                   \
+    EA = tcg_temp_new();                                                      \
+    gen_addr_reg_index(ctx, EA);                                              \
+    gen_qemu_##stop(ctx, cpu_fpr[rS(ctx->opcode)], EA);                       \
+    tcg_gen_mov_tl(cpu_gpr[rA(ctx->opcode)], EA);                             \
+    tcg_temp_free(EA);                                                        \
+}
+
+#define GEN_STXF(name, stop, opc2, opc3, type)                                \
+static void glue(gen_, name##x)(DisasContext *ctx)                                    \
+{                                                                             \
+    TCGv EA;                                                                  \
+    if (unlikely(!ctx->fpu_enabled)) {                                        \
+        gen_exception(ctx, POWERPC_EXCP_FPU);                                 \
+        return;                                                               \
+    }                                                                         \
+    gen_set_access_type(ctx, ACCESS_FLOAT);                                   \
+    EA = tcg_temp_new();                                                      \
+    gen_addr_reg_index(ctx, EA);                                              \
+    gen_qemu_##stop(ctx, cpu_fpr[rS(ctx->opcode)], EA);                       \
+    tcg_temp_free(EA);                                                        \
+}
+
+#define GEN_STFS(name, stop, op, type)                                        \
+GEN_STF(name, stop, op | 0x20, type);                                         \
+GEN_STUF(name, stop, op | 0x21, type);                                        \
+GEN_STUXF(name, stop, op | 0x01, type);                                       \
+GEN_STXF(name, stop, 0x17, op | 0x00, type)
+
+static inline void gen_qemu_st32fs(DisasContext *ctx, TCGv_i64 arg1, TCGv arg2)
+{
+    TCGv_i32 t0 = tcg_temp_new_i32();
+    TCGv t1 = tcg_temp_new();
+    gen_helper_float64_to_float32(t0, cpu_env, arg1);
+    tcg_gen_extu_i32_tl(t1, t0);
+    tcg_temp_free_i32(t0);
+    gen_qemu_st32(ctx, t1, arg2);
+    tcg_temp_free(t1);
+}
+
+/* stfd stfdu stfdux stfdx */
+GEN_STFS(stfd, st64, 0x16, PPC_FLOAT);
+/* stfs stfsu stfsux stfsx */
+GEN_STFS(stfs, st32fs, 0x14, PPC_FLOAT);
+
+/* stfdp */
+static void gen_stfdp(DisasContext *ctx)
+{
+    TCGv EA;
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    gen_set_access_type(ctx, ACCESS_FLOAT);
+    EA = tcg_temp_new();
+    gen_addr_imm_index(ctx, EA, 0);
+    /* We only need to swap high and low halves. gen_qemu_st64 does necessary
+       64-bit byteswap already. */
+    if (unlikely(ctx->le_mode)) {
+        gen_qemu_st64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA);
+        tcg_gen_addi_tl(EA, EA, 8);
+        gen_qemu_st64(ctx, cpu_fpr[rD(ctx->opcode)], EA);
+    } else {
+        gen_qemu_st64(ctx, cpu_fpr[rD(ctx->opcode)], EA);
+        tcg_gen_addi_tl(EA, EA, 8);
+        gen_qemu_st64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA);
+    }
+    tcg_temp_free(EA);
+}
+
+/* stfdpx */
+static void gen_stfdpx(DisasContext *ctx)
+{
+    TCGv EA;
+    if (unlikely(!ctx->fpu_enabled)) {
+        gen_exception(ctx, POWERPC_EXCP_FPU);
+        return;
+    }
+    gen_set_access_type(ctx, ACCESS_FLOAT);
+    EA = tcg_temp_new();
+    gen_addr_reg_index(ctx, EA);
+    /* We only need to swap high and low halves. gen_qemu_st64 does necessary
+       64-bit byteswap already. */
+    if (unlikely(ctx->le_mode)) {
+        gen_qemu_st64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA);
+        tcg_gen_addi_tl(EA, EA, 8);
+        gen_qemu_st64(ctx, cpu_fpr[rD(ctx->opcode)], EA);
+    } else {
+        gen_qemu_st64(ctx, cpu_fpr[rD(ctx->opcode)], EA);
+        tcg_gen_addi_tl(EA, EA, 8);
+        gen_qemu_st64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA);
+    }
+    tcg_temp_free(EA);
+}
+
+/* Optional: */
+static inline void gen_qemu_st32fiw(DisasContext *ctx, TCGv_i64 arg1, TCGv arg2)
+{
+    TCGv t0 = tcg_temp_new();
+    tcg_gen_trunc_i64_tl(t0, arg1),
+    gen_qemu_st32(ctx, t0, arg2);
+    tcg_temp_free(t0);
+}
+/* stfiwx */
+GEN_STXF(stfiw, st32fiw, 0x17, 0x1E, PPC_FLOAT_STFIWX);
+
+/* POWER2 specific instructions */
+/* Quad manipulation (load/store two floats at a time) */
+
+/* lfq */
+static void gen_lfq(DisasContext *ctx)
+{
+    int rd = rD(ctx->opcode);
+    TCGv t0;
+    gen_set_access_type(ctx, ACCESS_FLOAT);
+    t0 = tcg_temp_new();
+    gen_addr_imm_index(ctx, t0, 0);
+    gen_qemu_ld64(ctx, cpu_fpr[rd], t0);
+    gen_addr_add(ctx, t0, t0, 8);
+    gen_qemu_ld64(ctx, cpu_fpr[(rd + 1) % 32], t0);
+    tcg_temp_free(t0);
+}
+
+/* lfqu */
+static void gen_lfqu(DisasContext *ctx)
+{
+    int ra = rA(ctx->opcode);
+    int rd = rD(ctx->opcode);
+    TCGv t0, t1;
+    gen_set_access_type(ctx, ACCESS_FLOAT);
+    t0 = tcg_temp_new();
+    t1 = tcg_temp_new();
+    gen_addr_imm_index(ctx, t0, 0);
+    gen_qemu_ld64(ctx, cpu_fpr[rd], t0);
+    gen_addr_add(ctx, t1, t0, 8);
+    gen_qemu_ld64(ctx, cpu_fpr[(rd + 1) % 32], t1);
+    if (ra != 0)
+        tcg_gen_mov_tl(cpu_gpr[ra], t0);
+    tcg_temp_free(t0);
+    tcg_temp_free(t1);
+}
+
+/* lfqux */
+static void gen_lfqux(DisasContext *ctx)
+{
+    int ra = rA(ctx->opcode);
+    int rd = rD(ctx->opcode);
+    gen_set_access_type(ctx, ACCESS_FLOAT);
+    TCGv t0, t1;
+    t0 = tcg_temp_new();
+    gen_addr_reg_index(ctx, t0);
+    gen_qemu_ld64(ctx, cpu_fpr[rd], t0);
+    t1 = tcg_temp_new();
+    gen_addr_add(ctx, t1, t0, 8);
+    gen_qemu_ld64(ctx, cpu_fpr[(rd + 1) % 32], t1);
+    tcg_temp_free(t1);
+    if (ra != 0)
+        tcg_gen_mov_tl(cpu_gpr[ra], t0);
+    tcg_temp_free(t0);
+}
+
+/* lfqx */
+static void gen_lfqx(DisasContext *ctx)
+{
+    int rd = rD(ctx->opcode);
+    TCGv t0;
+    gen_set_access_type(ctx, ACCESS_FLOAT);
+    t0 = tcg_temp_new();
+    gen_addr_reg_index(ctx, t0);
+    gen_qemu_ld64(ctx, cpu_fpr[rd], t0);
+    gen_addr_add(ctx, t0, t0, 8);
+    gen_qemu_ld64(ctx, cpu_fpr[(rd + 1) % 32], t0);
+    tcg_temp_free(t0);
+}
+
+/* stfq */
+static void gen_stfq(DisasContext *ctx)
+{
+    int rd = rD(ctx->opcode);
+    TCGv t0;
+    gen_set_access_type(ctx, ACCESS_FLOAT);
+    t0 = tcg_temp_new();
+    gen_addr_imm_index(ctx, t0, 0);
+    gen_qemu_st64(ctx, cpu_fpr[rd], t0);
+    gen_addr_add(ctx, t0, t0, 8);
+    gen_qemu_st64(ctx, cpu_fpr[(rd + 1) % 32], t0);
+    tcg_temp_free(t0);
+}
+
+/* stfqu */
+static void gen_stfqu(DisasContext *ctx)
+{
+    int ra = rA(ctx->opcode);
+    int rd = rD(ctx->opcode);
+    TCGv t0, t1;
+    gen_set_access_type(ctx, ACCESS_FLOAT);
+    t0 = tcg_temp_new();
+    gen_addr_imm_index(ctx, t0, 0);
+    gen_qemu_st64(ctx, cpu_fpr[rd], t0);
+    t1 = tcg_temp_new();
+    gen_addr_add(ctx, t1, t0, 8);
+    gen_qemu_st64(ctx, cpu_fpr[(rd + 1) % 32], t1);
+    tcg_temp_free(t1);
+    if (ra != 0)
+        tcg_gen_mov_tl(cpu_gpr[ra], t0);
+    tcg_temp_free(t0);
+}
+
+/* stfqux */
+static void gen_stfqux(DisasContext *ctx)
+{
+    int ra = rA(ctx->opcode);
+    int rd = rD(ctx->opcode);
+    TCGv t0, t1;
+    gen_set_access_type(ctx, ACCESS_FLOAT);
+    t0 = tcg_temp_new();
+    gen_addr_reg_index(ctx, t0);
+    gen_qemu_st64(ctx, cpu_fpr[rd], t0);
+    t1 = tcg_temp_new();
+    gen_addr_add(ctx, t1, t0, 8);
+    gen_qemu_st64(ctx, cpu_fpr[(rd + 1) % 32], t1);
+    tcg_temp_free(t1);
+    if (ra != 0)
+        tcg_gen_mov_tl(cpu_gpr[ra], t0);
+    tcg_temp_free(t0);
+}
+
+/* stfqx */
+static void gen_stfqx(DisasContext *ctx)
+{
+    int rd = rD(ctx->opcode);
+    TCGv t0;
+    gen_set_access_type(ctx, ACCESS_FLOAT);
+    t0 = tcg_temp_new();
+    gen_addr_reg_index(ctx, t0);
+    gen_qemu_st64(ctx, cpu_fpr[rd], t0);
+    gen_addr_add(ctx, t0, t0, 8);
+    gen_qemu_st64(ctx, cpu_fpr[(rd + 1) % 32], t0);
+    tcg_temp_free(t0);
+}
+
+#undef _GEN_FLOAT_ACB
+#undef GEN_FLOAT_ACB
+#undef _GEN_FLOAT_AB
+#undef GEN_FLOAT_AB
+#undef _GEN_FLOAT_AC
+#undef GEN_FLOAT_AC
+#undef GEN_FLOAT_B
+#undef GEN_FLOAT_BS
+
+#undef GEN_LDF
+#undef GEN_LDUF
+#undef GEN_LDUXF
+#undef GEN_LDXF
+#undef GEN_LDFS
+
+#undef GEN_STF
+#undef GEN_STUF
+#undef GEN_STUXF
+#undef GEN_STXF
+#undef GEN_STFS
diff --git a/target-ppc/translate/fp-ops.c b/target-ppc/translate/fp-ops.c
new file mode 100644
index 0000000..291a1e6
--- /dev/null
+++ b/target-ppc/translate/fp-ops.c
@@ -0,0 +1,111 @@
+#define _GEN_FLOAT_ACB(name, op, op1, op2, isfloat, set_fprf, type)           \
+GEN_HANDLER(f##name, op1, op2, 0xFF, 0x00000000, type)
+#define GEN_FLOAT_ACB(name, op2, set_fprf, type)                              \
+_GEN_FLOAT_ACB(name, name, 0x3F, op2, 0, set_fprf, type),                     \
+_GEN_FLOAT_ACB(name##s, name, 0x3B, op2, 1, set_fprf, type)
+#define _GEN_FLOAT_AB(name, op, op1, op2, inval, isfloat, set_fprf, type)     \
+GEN_HANDLER(f##name, op1, op2, 0xFF, inval, type)
+#define GEN_FLOAT_AB(name, op2, inval, set_fprf, type)                        \
+_GEN_FLOAT_AB(name, name, 0x3F, op2, inval, 0, set_fprf, type),               \
+_GEN_FLOAT_AB(name##s, name, 0x3B, op2, inval, 1, set_fprf, type)
+#define _GEN_FLOAT_AC(name, op, op1, op2, inval, isfloat, set_fprf, type)     \
+GEN_HANDLER(f##name, op1, op2, 0xFF, inval, type)
+#define GEN_FLOAT_AC(name, op2, inval, set_fprf, type)                        \
+_GEN_FLOAT_AC(name, name, 0x3F, op2, inval, 0, set_fprf, type),               \
+_GEN_FLOAT_AC(name##s, name, 0x3B, op2, inval, 1, set_fprf, type)
+#define GEN_FLOAT_B(name, op2, op3, set_fprf, type)                           \
+GEN_HANDLER(f##name, 0x3F, op2, op3, 0x001F0000, type)
+#define GEN_FLOAT_BS(name, op1, op2, set_fprf, type)                          \
+GEN_HANDLER(f##name, op1, op2, 0xFF, 0x001F07C0, type)
+
+GEN_FLOAT_AB(add, 0x15, 0x000007C0, 1, PPC_FLOAT),
+GEN_FLOAT_AB(div, 0x12, 0x000007C0, 1, PPC_FLOAT),
+GEN_FLOAT_AC(mul, 0x19, 0x0000F800, 1, PPC_FLOAT),
+GEN_FLOAT_BS(re, 0x3F, 0x18, 1, PPC_FLOAT_EXT),
+GEN_FLOAT_BS(res, 0x3B, 0x18, 1, PPC_FLOAT_FRES),
+GEN_FLOAT_BS(rsqrte, 0x3F, 0x1A, 1, PPC_FLOAT_FRSQRTE),
+_GEN_FLOAT_ACB(sel, sel, 0x3F, 0x17, 0, 0, PPC_FLOAT_FSEL),
+GEN_FLOAT_AB(sub, 0x14, 0x000007C0, 1, PPC_FLOAT),
+GEN_FLOAT_ACB(madd, 0x1D, 1, PPC_FLOAT),
+GEN_FLOAT_ACB(msub, 0x1C, 1, PPC_FLOAT),
+GEN_FLOAT_ACB(nmadd, 0x1F, 1, PPC_FLOAT),
+GEN_FLOAT_ACB(nmsub, 0x1E, 1, PPC_FLOAT),
+GEN_HANDLER_E(ftdiv, 0x3F, 0x00, 0x04, 1, PPC_NONE, PPC2_FP_TST_ISA206),
+GEN_HANDLER_E(ftsqrt, 0x3F, 0x00, 0x05, 1, PPC_NONE, PPC2_FP_TST_ISA206),
+GEN_FLOAT_B(ctiw, 0x0E, 0x00, 0, PPC_FLOAT),
+GEN_HANDLER_E(fctiwu, 0x3F, 0x0E, 0x04, 0, PPC_NONE, PPC2_FP_CVT_ISA206),
+GEN_FLOAT_B(ctiwz, 0x0F, 0x00, 0, PPC_FLOAT),
+GEN_HANDLER_E(fctiwuz, 0x3F, 0x0F, 0x04, 0, PPC_NONE, PPC2_FP_CVT_ISA206),
+GEN_FLOAT_B(rsp, 0x0C, 0x00, 1, PPC_FLOAT),
+GEN_HANDLER_E(fcfid, 0x3F, 0x0E, 0x1A, 0x001F0000, PPC_NONE, PPC2_FP_CVT_S64),
+GEN_HANDLER_E(fcfids, 0x3B, 0x0E, 0x1A, 0, PPC_NONE, PPC2_FP_CVT_ISA206),
+GEN_HANDLER_E(fcfidu, 0x3F, 0x0E, 0x1E, 0, PPC_NONE, PPC2_FP_CVT_ISA206),
+GEN_HANDLER_E(fcfidus, 0x3B, 0x0E, 0x1E, 0, PPC_NONE, PPC2_FP_CVT_ISA206),
+GEN_HANDLER_E(fctid, 0x3F, 0x0E, 0x19, 0x001F0000, PPC_NONE, PPC2_FP_CVT_S64),
+GEN_HANDLER_E(fctidu, 0x3F, 0x0E, 0x1D, 0, PPC_NONE, PPC2_FP_CVT_ISA206),
+GEN_HANDLER_E(fctidz, 0x3F, 0x0F, 0x19, 0x001F0000, PPC_NONE, PPC2_FP_CVT_S64),
+GEN_HANDLER_E(fctiduz, 0x3F, 0x0F, 0x1D, 0, PPC_NONE, PPC2_FP_CVT_ISA206),
+GEN_FLOAT_B(rin, 0x08, 0x0C, 1, PPC_FLOAT_EXT),
+GEN_FLOAT_B(riz, 0x08, 0x0D, 1, PPC_FLOAT_EXT),
+GEN_FLOAT_B(rip, 0x08, 0x0E, 1, PPC_FLOAT_EXT),
+GEN_FLOAT_B(rim, 0x08, 0x0F, 1, PPC_FLOAT_EXT),
+
+#define GEN_LDF(name, ldop, opc, type)                                        \
+GEN_HANDLER(name, opc, 0xFF, 0xFF, 0x00000000, type),
+#define GEN_LDUF(name, ldop, opc, type)                                       \
+GEN_HANDLER(name##u, opc, 0xFF, 0xFF, 0x00000000, type),
+#define GEN_LDUXF(name, ldop, opc, type)                                      \
+GEN_HANDLER(name##ux, 0x1F, 0x17, opc, 0x00000001, type),
+#define GEN_LDXF(name, ldop, opc2, opc3, type)                                \
+GEN_HANDLER(name##x, 0x1F, opc2, opc3, 0x00000001, type),
+#define GEN_LDFS(name, ldop, op, type)                                        \
+GEN_LDF(name, ldop, op | 0x20, type)                                          \
+GEN_LDUF(name, ldop, op | 0x21, type)                                         \
+GEN_LDUXF(name, ldop, op | 0x01, type)                                        \
+GEN_LDXF(name, ldop, 0x17, op | 0x00, type)
+
+GEN_LDFS(lfd, ld64, 0x12, PPC_FLOAT)
+GEN_LDFS(lfs, ld32fs, 0x10, PPC_FLOAT)
+GEN_HANDLER_E(lfiwax, 0x1f, 0x17, 0x1a, 0x00000001, PPC_NONE, PPC2_ISA205),
+GEN_HANDLER_E(lfiwzx, 0x1f, 0x17, 0x1b, 0x1, PPC_NONE, PPC2_FP_CVT_ISA206),
+GEN_HANDLER_E(lfdp, 0x39, 0xFF, 0xFF, 0x00200003, PPC_NONE, PPC2_ISA205),
+GEN_HANDLER_E(lfdpx, 0x1F, 0x17, 0x18, 0x00200001, PPC_NONE, PPC2_ISA205),
+
+#define GEN_STF(name, stop, opc, type)                                        \
+GEN_HANDLER(name, opc, 0xFF, 0xFF, 0x00000000, type),
+#define GEN_STUF(name, stop, opc, type)                                       \
+GEN_HANDLER(name##u, opc, 0xFF, 0xFF, 0x00000000, type),
+#define GEN_STUXF(name, stop, opc, type)                                      \
+GEN_HANDLER(name##ux, 0x1F, 0x17, opc, 0x00000001, type),
+#define GEN_STXF(name, stop, opc2, opc3, type)                                \
+GEN_HANDLER(name##x, 0x1F, opc2, opc3, 0x00000001, type),
+#define GEN_STFS(name, stop, op, type)                                        \
+GEN_STF(name, stop, op | 0x20, type)                                          \
+GEN_STUF(name, stop, op | 0x21, type)                                         \
+GEN_STUXF(name, stop, op | 0x01, type)                                        \
+GEN_STXF(name, stop, 0x17, op | 0x00, type)
+
+GEN_STFS(stfd, st64, 0x16, PPC_FLOAT)
+GEN_STFS(stfs, st32fs, 0x14, PPC_FLOAT)
+GEN_STXF(stfiw, st32fiw, 0x17, 0x1E, PPC_FLOAT_STFIWX)
+GEN_HANDLER_E(stfdp, 0x3D, 0xFF, 0xFF, 0x00200003, PPC_NONE, PPC2_ISA205),
+GEN_HANDLER_E(stfdpx, 0x1F, 0x17, 0x1C, 0x00200001, PPC_NONE, PPC2_ISA205),
+
+GEN_HANDLER(frsqrtes, 0x3B, 0x1A, 0xFF, 0x001F07C0, PPC_FLOAT_FRSQRTES),
+GEN_HANDLER(fsqrt, 0x3F, 0x16, 0xFF, 0x001F07C0, PPC_FLOAT_FSQRT),
+GEN_HANDLER(fsqrts, 0x3B, 0x16, 0xFF, 0x001F07C0, PPC_FLOAT_FSQRT),
+GEN_HANDLER(fcmpo, 0x3F, 0x00, 0x01, 0x00600001, PPC_FLOAT),
+GEN_HANDLER(fcmpu, 0x3F, 0x00, 0x00, 0x00600001, PPC_FLOAT),
+GEN_HANDLER(fabs, 0x3F, 0x08, 0x08, 0x001F0000, PPC_FLOAT),
+GEN_HANDLER(fmr, 0x3F, 0x08, 0x02, 0x001F0000, PPC_FLOAT),
+GEN_HANDLER(fnabs, 0x3F, 0x08, 0x04, 0x001F0000, PPC_FLOAT),
+GEN_HANDLER(fneg, 0x3F, 0x08, 0x01, 0x001F0000, PPC_FLOAT),
+GEN_HANDLER_E(fcpsgn, 0x3F, 0x08, 0x00, 0x00000000, PPC_NONE, PPC2_ISA205),
+GEN_HANDLER_E(fmrgew, 0x3F, 0x06, 0x1E, 0x00000001, PPC_NONE, PPC2_VSX207),
+GEN_HANDLER_E(fmrgow, 0x3F, 0x06, 0x1A, 0x00000001, PPC_NONE, PPC2_VSX207),
+GEN_HANDLER(mcrfs, 0x3F, 0x00, 0x02, 0x0063F801, PPC_FLOAT),
+GEN_HANDLER(mffs, 0x3F, 0x07, 0x12, 0x001FF800, PPC_FLOAT),
+GEN_HANDLER(mtfsb0, 0x3F, 0x06, 0x02, 0x001FF800, PPC_FLOAT),
+GEN_HANDLER(mtfsb1, 0x3F, 0x06, 0x01, 0x001FF800, PPC_FLOAT),
+GEN_HANDLER(mtfsf, 0x3F, 0x07, 0x16, 0x00000000, PPC_FLOAT),
+GEN_HANDLER(mtfsfi, 0x3F, 0x06, 0x04, 0x006e0800, PPC_FLOAT),