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qemu-e2k/target-ppc/op_helper.h
j_mayer c3e10c7b43 Optimize PowerPC overflow flag computation in most useful cases. 
Use the same routines to check overflow for addo, subfo and PowerPC 405
  multiply and add cases.
Fix carry reset in addme(o) and subfme(o) cases.


git-svn-id: svn://svn.savannah.nongnu.org/qemu/trunk@3574 c046a42c-6fe2-441c-8c8c-71466251a162
2007-11-11 00:18:34 +00:00

414 lines
10 KiB
C
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/*
* PowerPC emulation helpers header for qemu.
*
* Copyright (c) 2003-2007 Jocelyn Mayer
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Lesser General Public License for more details.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*/
#if defined(MEMSUFFIX)
/* Memory load/store helpers */
void glue(do_lsw, MEMSUFFIX) (int dst);
void glue(do_lsw_le, MEMSUFFIX) (int dst);
void glue(do_stsw, MEMSUFFIX) (int src);
void glue(do_stsw_le, MEMSUFFIX) (int src);
void glue(do_lmw, MEMSUFFIX) (int dst);
void glue(do_lmw_le, MEMSUFFIX) (int dst);
void glue(do_stmw, MEMSUFFIX) (int src);
void glue(do_stmw_le, MEMSUFFIX) (int src);
void glue(do_icbi, MEMSUFFIX) (void);
void glue(do_dcbz, MEMSUFFIX) (void);
void glue(do_POWER_lscbx, MEMSUFFIX) (int dest, int ra, int rb);
void glue(do_POWER2_lfq, MEMSUFFIX) (void);
void glue(do_POWER2_lfq_le, MEMSUFFIX) (void);
void glue(do_POWER2_stfq, MEMSUFFIX) (void);
void glue(do_POWER2_stfq_le, MEMSUFFIX) (void);
#if defined(TARGET_PPC64)
void glue(do_lsw_64, MEMSUFFIX) (int dst);
void glue(do_lsw_le_64, MEMSUFFIX) (int dst);
void glue(do_stsw_64, MEMSUFFIX) (int src);
void glue(do_stsw_le_64, MEMSUFFIX) (int src);
void glue(do_lmw_64, MEMSUFFIX) (int dst);
void glue(do_lmw_le_64, MEMSUFFIX) (int dst);
void glue(do_stmw_64, MEMSUFFIX) (int src);
void glue(do_stmw_le_64, MEMSUFFIX) (int src);
void glue(do_icbi_64, MEMSUFFIX) (void);
void glue(do_dcbz_64, MEMSUFFIX) (void);
#endif
#else
void do_print_mem_EA (target_ulong EA);
/* Registers load and stores */
void do_load_cr (void);
void do_store_cr (uint32_t mask);
#if defined(TARGET_PPC64)
void do_store_pri (int prio);
#endif
void do_fpscr_setbit (int bit);
void do_store_fpscr (uint32_t mask);
target_ulong ppc_load_dump_spr (int sprn);
void ppc_store_dump_spr (int sprn, target_ulong val);
/* Integer arithmetic helpers */
void do_adde (void);
void do_addmeo (void);
void do_divwo (void);
void do_divwuo (void);
void do_mullwo (void);
void do_nego (void);
void do_subfe (void);
void do_subfmeo (void);
void do_subfzeo (void);
void do_cntlzw (void);
#if defined(TARGET_PPC64)
void do_cntlzd (void);
#endif
void do_sraw (void);
#if defined(TARGET_PPC64)
void do_adde_64 (void);
void do_addmeo_64 (void);
void do_divdo (void);
void do_divduo (void);
void do_mulldo (void);
void do_nego_64 (void);
void do_subfe_64 (void);
void do_subfmeo_64 (void);
void do_subfzeo_64 (void);
void do_srad (void);
#endif
void do_popcntb (void);
#if defined(TARGET_PPC64)
void do_popcntb_64 (void);
#endif
/* Floating-point arithmetic helpers */
void do_compute_fprf (int set_class);
#ifdef CONFIG_SOFTFLOAT
void do_float_check_status (void);
#endif
#if USE_PRECISE_EMULATION
void do_fadd (void);
void do_fsub (void);
void do_fmul (void);
void do_fdiv (void);
#endif
void do_fsqrt (void);
void do_fre (void);
void do_fres (void);
void do_frsqrte (void);
void do_fsel (void);
#if USE_PRECISE_EMULATION
void do_fmadd (void);
void do_fmsub (void);
#endif
void do_fnmadd (void);
void do_fnmsub (void);
#if USE_PRECISE_EMULATION
void do_frsp (void);
#endif
void do_fctiw (void);
void do_fctiwz (void);
#if defined(TARGET_PPC64)
void do_fcfid (void);
void do_fctid (void);
void do_fctidz (void);
#endif
void do_frin (void);
void do_friz (void);
void do_frip (void);
void do_frim (void);
void do_fcmpu (void);
void do_fcmpo (void);
/* Misc */
void do_tw (int flags);
#if defined(TARGET_PPC64)
void do_td (int flags);
#endif
#if !defined(CONFIG_USER_ONLY)
void do_store_msr (void);
void do_rfi (void);
#if defined(TARGET_PPC64)
void do_rfid (void);
#endif
#if defined(TARGET_PPC64H)
void do_hrfid (void);
#endif
void do_load_6xx_tlb (int is_code);
void do_load_74xx_tlb (int is_code);
#endif
/* POWER / PowerPC 601 specific helpers */
void do_POWER_abso (void);
void do_POWER_clcs (void);
void do_POWER_div (void);
void do_POWER_divo (void);
void do_POWER_divs (void);
void do_POWER_divso (void);
void do_POWER_dozo (void);
void do_POWER_maskg (void);
void do_POWER_mulo (void);
#if !defined(CONFIG_USER_ONLY)
void do_POWER_rac (void);
void do_POWER_rfsvc (void);
void do_store_hid0_601 (void);
#endif
/* PowerPC 602 specific helper */
#if !defined(CONFIG_USER_ONLY)
void do_op_602_mfrom (void);
#endif
/* PowerPC 440 specific helpers */
#if !defined(CONFIG_USER_ONLY)
void do_440_tlbre (int word);
void do_440_tlbwe (int word);
#endif
/* PowerPC 4xx specific helpers */
void do_405_check_sat (void);
void do_load_dcr (void);
void do_store_dcr (void);
#if !defined(CONFIG_USER_ONLY)
void do_40x_rfci (void);
void do_rfci (void);
void do_rfdi (void);
void do_rfmci (void);
void do_4xx_tlbre_lo (void);
void do_4xx_tlbre_hi (void);
void do_4xx_tlbwe_lo (void);
void do_4xx_tlbwe_hi (void);
#endif
/* PowerPC 440 specific helpers */
void do_440_dlmzb (void);
/* PowerPC 403 specific helpers */
#if !defined(CONFIG_USER_ONLY)
void do_load_403_pb (int num);
void do_store_403_pb (int num);
#endif
#if defined(TARGET_PPCEMB)
/* SPE extension helpers */
void do_brinc (void);
/* Fixed-point vector helpers */
void do_evabs (void);
void do_evaddw (void);
void do_evcntlsw (void);
void do_evcntlzw (void);
void do_evneg (void);
void do_evrlw (void);
void do_evsel (void);
void do_evrndw (void);
void do_evslw (void);
void do_evsrws (void);
void do_evsrwu (void);
void do_evsubfw (void);
void do_evcmpeq (void);
void do_evcmpgts (void);
void do_evcmpgtu (void);
void do_evcmplts (void);
void do_evcmpltu (void);
/* Single precision floating-point helpers */
void do_efscmplt (void);
void do_efscmpgt (void);
void do_efscmpeq (void);
void do_efscfsf (void);
void do_efscfuf (void);
void do_efsctsf (void);
void do_efsctuf (void);
void do_efscfsi (void);
void do_efscfui (void);
void do_efsctsi (void);
void do_efsctui (void);
void do_efsctsiz (void);
void do_efsctuiz (void);
/* Double precision floating-point helpers */
void do_efdcmplt (void);
void do_efdcmpgt (void);
void do_efdcmpeq (void);
void do_efdcfsf (void);
void do_efdcfuf (void);
void do_efdctsf (void);
void do_efdctuf (void);
void do_efdcfsi (void);
void do_efdcfui (void);
void do_efdctsi (void);
void do_efdctui (void);
void do_efdctsiz (void);
void do_efdctuiz (void);
void do_efdcfs (void);
void do_efscfd (void);
/* Floating-point vector helpers */
void do_evfsabs (void);
void do_evfsnabs (void);
void do_evfsneg (void);
void do_evfsadd (void);
void do_evfssub (void);
void do_evfsmul (void);
void do_evfsdiv (void);
void do_evfscmplt (void);
void do_evfscmpgt (void);
void do_evfscmpeq (void);
void do_evfststlt (void);
void do_evfststgt (void);
void do_evfststeq (void);
void do_evfscfsi (void);
void do_evfscfui (void);
void do_evfscfsf (void);
void do_evfscfuf (void);
void do_evfsctsf (void);
void do_evfsctuf (void);
void do_evfsctsi (void);
void do_evfsctui (void);
void do_evfsctsiz (void);
void do_evfsctuiz (void);
#endif /* defined(TARGET_PPCEMB) */
#if defined(TARGET_PPCEMB)
/* SPE extension */
/* Single precision floating-point helpers */
static always_inline uint32_t _do_efsabs (uint32_t val)
{
return val & ~0x80000000;
}
static always_inline uint32_t _do_efsnabs (uint32_t val)
{
return val | 0x80000000;
}
static always_inline uint32_t _do_efsneg (uint32_t val)
{
return val ^ 0x80000000;
}
static always_inline uint32_t _do_efsadd (uint32_t op1, uint32_t op2)
{
union {
uint32_t u;
float32 f;
} u1, u2;
u1.u = op1;
u2.u = op2;
u1.f = float32_add(u1.f, u2.f, &env->spe_status);
return u1.u;
}
static always_inline uint32_t _do_efssub (uint32_t op1, uint32_t op2)
{
union {
uint32_t u;
float32 f;
} u1, u2;
u1.u = op1;
u2.u = op2;
u1.f = float32_sub(u1.f, u2.f, &env->spe_status);
return u1.u;
}
static always_inline uint32_t _do_efsmul (uint32_t op1, uint32_t op2)
{
union {
uint32_t u;
float32 f;
} u1, u2;
u1.u = op1;
u2.u = op2;
u1.f = float32_mul(u1.f, u2.f, &env->spe_status);
return u1.u;
}
static always_inline uint32_t _do_efsdiv (uint32_t op1, uint32_t op2)
{
union {
uint32_t u;
float32 f;
} u1, u2;
u1.u = op1;
u2.u = op2;
u1.f = float32_div(u1.f, u2.f, &env->spe_status);
return u1.u;
}
static always_inline int _do_efststlt (uint32_t op1, uint32_t op2)
{
union {
uint32_t u;
float32 f;
} u1, u2;
u1.u = op1;
u2.u = op2;
return float32_lt(u1.f, u2.f, &env->spe_status) ? 1 : 0;
}
static always_inline int _do_efststgt (uint32_t op1, uint32_t op2)
{
union {
uint32_t u;
float32 f;
} u1, u2;
u1.u = op1;
u2.u = op2;
return float32_le(u1.f, u2.f, &env->spe_status) ? 0 : 1;
}
static always_inline int _do_efststeq (uint32_t op1, uint32_t op2)
{
union {
uint32_t u;
float32 f;
} u1, u2;
u1.u = op1;
u2.u = op2;
return float32_eq(u1.f, u2.f, &env->spe_status) ? 1 : 0;
}
/* Double precision floating-point helpers */
static always_inline int _do_efdtstlt (uint64_t op1, uint64_t op2)
{
union {
uint64_t u;
float64 f;
} u1, u2;
u1.u = op1;
u2.u = op2;
return float64_lt(u1.f, u2.f, &env->spe_status) ? 1 : 0;
}
static always_inline int _do_efdtstgt (uint64_t op1, uint64_t op2)
{
union {
uint64_t u;
float64 f;
} u1, u2;
u1.u = op1;
u2.u = op2;
return float64_le(u1.f, u2.f, &env->spe_status) ? 0 : 1;
}
static always_inline int _do_efdtsteq (uint64_t op1, uint64_t op2)
{
union {
uint64_t u;
float64 f;
} u1, u2;
u1.u = op1;
u2.u = op2;
return float64_eq(u1.f, u2.f, &env->spe_status) ? 1 : 0;
}
#endif /* defined(TARGET_PPCEMB) */
#endif
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