/* * 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_float64(TCGv_i64 arg) { gen_helper_compute_fprf_float64(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; \ } \ 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_float64(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; \ } \ 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_float64(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; \ } \ 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_float64(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; \ } \ 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_float64(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; \ } \ 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_float64(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; } 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_float64(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; } gen_reset_fpstatus(); gen_helper_fsqrt(cpu_fpr[rD(ctx->opcode)], cpu_env, cpu_fpr[rB(ctx->opcode)]); gen_compute_fprf_float64(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; } 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_float64(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; } 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; } 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; 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; 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; } 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; 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_i64, 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_i64 does necessary 64-bit byteswap already. */ if (unlikely(ctx->le_mode)) { gen_qemu_ld64_i64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA); tcg_gen_addi_tl(EA, EA, 8); gen_qemu_ld64_i64(ctx, cpu_fpr[rD(ctx->opcode)], EA); } else { gen_qemu_ld64_i64(ctx, cpu_fpr[rD(ctx->opcode)], EA); tcg_gen_addi_tl(EA, EA, 8); gen_qemu_ld64_i64(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_i64 does necessary 64-bit byteswap already. */ if (unlikely(ctx->le_mode)) { gen_qemu_ld64_i64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA); tcg_gen_addi_tl(EA, EA, 8); gen_qemu_ld64_i64(ctx, cpu_fpr[rD(ctx->opcode)], EA); } else { gen_qemu_ld64_i64(ctx, cpu_fpr[rD(ctx->opcode)], EA); tcg_gen_addi_tl(EA, EA, 8); gen_qemu_ld64_i64(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_i64, 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_i64 does necessary 64-bit byteswap already. */ if (unlikely(ctx->le_mode)) { gen_qemu_st64_i64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA); tcg_gen_addi_tl(EA, EA, 8); gen_qemu_st64_i64(ctx, cpu_fpr[rD(ctx->opcode)], EA); } else { gen_qemu_st64_i64(ctx, cpu_fpr[rD(ctx->opcode)], EA); tcg_gen_addi_tl(EA, EA, 8); gen_qemu_st64_i64(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_i64 does necessary 64-bit byteswap already. */ if (unlikely(ctx->le_mode)) { gen_qemu_st64_i64(ctx, cpu_fpr[rD(ctx->opcode) + 1], EA); tcg_gen_addi_tl(EA, EA, 8); gen_qemu_st64_i64(ctx, cpu_fpr[rD(ctx->opcode)], EA); } else { gen_qemu_st64_i64(ctx, cpu_fpr[rD(ctx->opcode)], EA); tcg_gen_addi_tl(EA, EA, 8); gen_qemu_st64_i64(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_i64(ctx, cpu_fpr[rd], t0); gen_addr_add(ctx, t0, t0, 8); gen_qemu_ld64_i64(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_i64(ctx, cpu_fpr[rd], t0); gen_addr_add(ctx, t1, t0, 8); gen_qemu_ld64_i64(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_i64(ctx, cpu_fpr[rd], t0); t1 = tcg_temp_new(); gen_addr_add(ctx, t1, t0, 8); gen_qemu_ld64_i64(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_i64(ctx, cpu_fpr[rd], t0); gen_addr_add(ctx, t0, t0, 8); gen_qemu_ld64_i64(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_i64(ctx, cpu_fpr[rd], t0); gen_addr_add(ctx, t0, t0, 8); gen_qemu_st64_i64(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_i64(ctx, cpu_fpr[rd], t0); t1 = tcg_temp_new(); gen_addr_add(ctx, t1, t0, 8); gen_qemu_st64_i64(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_i64(ctx, cpu_fpr[rd], t0); t1 = tcg_temp_new(); gen_addr_add(ctx, t1, t0, 8); gen_qemu_st64_i64(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_i64(ctx, cpu_fpr[rd], t0); gen_addr_add(ctx, t0, t0, 8); gen_qemu_st64_i64(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