root / target-ppc / op_helper.c @ 74d37793
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/*
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* PowerPC emulation helpers for qemu.
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*
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* Copyright (c) 2003-2007 Jocelyn Mayer
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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*/
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#include "exec.h" |
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#include "host-utils.h" |
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#include "helper.h" |
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#include "helper_regs.h" |
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#include "op_helper.h" |
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//#define DEBUG_OP
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//#define DEBUG_EXCEPTIONS
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//#define DEBUG_SOFTWARE_TLB
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/*****************************************************************************/
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/* Exceptions processing helpers */
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void helper_raise_exception_err (uint32_t exception, uint32_t error_code)
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{ |
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raise_exception_err(env, exception, error_code); |
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} |
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void helper_raise_debug (void) |
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{ |
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raise_exception(env, EXCP_DEBUG); |
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} |
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/*****************************************************************************/
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/* Registers load and stores */
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target_ulong helper_load_cr (void)
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{ |
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return (env->crf[0] << 28) | |
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(env->crf[1] << 24) | |
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(env->crf[2] << 20) | |
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(env->crf[3] << 16) | |
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(env->crf[4] << 12) | |
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(env->crf[5] << 8) | |
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(env->crf[6] << 4) | |
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(env->crf[7] << 0); |
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} |
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void helper_store_cr (target_ulong val, uint32_t mask)
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{ |
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int i, sh;
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for (i = 0, sh = 7; i < 8; i++, sh--) { |
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if (mask & (1 << sh)) |
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env->crf[i] = (val >> (sh * 4)) & 0xFUL; |
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} |
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} |
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#if defined(TARGET_PPC64)
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void do_store_pri (int prio) |
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{ |
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env->spr[SPR_PPR] &= ~0x001C000000000000ULL;
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env->spr[SPR_PPR] |= ((uint64_t)prio & 0x7) << 50; |
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} |
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#endif
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target_ulong ppc_load_dump_spr (int sprn)
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{ |
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if (loglevel != 0) { |
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fprintf(logfile, "Read SPR %d %03x => " ADDRX "\n", |
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sprn, sprn, env->spr[sprn]); |
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} |
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return env->spr[sprn];
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} |
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void ppc_store_dump_spr (int sprn, target_ulong val) |
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{ |
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if (loglevel != 0) { |
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fprintf(logfile, "Write SPR %d %03x => " ADDRX " <= " ADDRX "\n", |
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sprn, sprn, env->spr[sprn], val); |
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} |
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env->spr[sprn] = val; |
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} |
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/*****************************************************************************/
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/* Memory load and stores */
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static always_inline target_ulong get_addr(target_ulong addr)
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{ |
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#if defined(TARGET_PPC64)
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if (msr_sf)
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return addr;
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else
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#endif
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return (uint32_t)addr;
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} |
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void helper_lmw (target_ulong addr, uint32_t reg)
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{ |
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for (; reg < 32; reg++, addr += 4) { |
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if (msr_le)
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env->gpr[reg] = bswap32(ldl(get_addr(addr))); |
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else
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env->gpr[reg] = ldl(get_addr(addr)); |
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} |
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} |
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void helper_stmw (target_ulong addr, uint32_t reg)
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{ |
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for (; reg < 32; reg++, addr += 4) { |
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if (msr_le)
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stl(get_addr(addr), bswap32((uint32_t)env->gpr[reg])); |
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else
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stl(get_addr(addr), (uint32_t)env->gpr[reg]); |
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} |
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} |
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void helper_lsw(target_ulong addr, uint32_t nb, uint32_t reg)
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{ |
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int sh;
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for (; nb > 3; nb -= 4, addr += 4) { |
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env->gpr[reg] = ldl(get_addr(addr)); |
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reg = (reg + 1) % 32; |
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} |
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if (unlikely(nb > 0)) { |
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env->gpr[reg] = 0;
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for (sh = 24; nb > 0; nb--, addr++, sh -= 8) { |
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env->gpr[reg] |= ldub(get_addr(addr)) << sh; |
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} |
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} |
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} |
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/* PPC32 specification says we must generate an exception if
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* rA is in the range of registers to be loaded.
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* In an other hand, IBM says this is valid, but rA won't be loaded.
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* For now, I'll follow the spec...
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*/
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void helper_lswx(target_ulong addr, uint32_t reg, uint32_t ra, uint32_t rb)
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{ |
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if (likely(xer_bc != 0)) { |
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if (unlikely((ra != 0 && reg < ra && (reg + xer_bc) > ra) || |
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(reg < rb && (reg + xer_bc) > rb))) { |
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raise_exception_err(env, POWERPC_EXCP_PROGRAM, |
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POWERPC_EXCP_INVAL | |
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POWERPC_EXCP_INVAL_LSWX); |
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} else {
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helper_lsw(addr, xer_bc, reg); |
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} |
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} |
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} |
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void helper_stsw(target_ulong addr, uint32_t nb, uint32_t reg)
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{ |
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int sh;
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for (; nb > 3; nb -= 4, addr += 4) { |
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stl(get_addr(addr), env->gpr[reg]); |
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reg = (reg + 1) % 32; |
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} |
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if (unlikely(nb > 0)) { |
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for (sh = 24; nb > 0; nb--, addr++, sh -= 8) |
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stb(get_addr(addr), (env->gpr[reg] >> sh) & 0xFF);
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} |
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} |
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static void do_dcbz(target_ulong addr, int dcache_line_size) |
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{ |
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target_long mask = get_addr(~(dcache_line_size - 1));
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int i;
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addr &= mask; |
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for (i = 0 ; i < dcache_line_size ; i += 4) { |
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stl(addr + i , 0);
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} |
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if ((env->reserve & mask) == addr)
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env->reserve = (target_ulong)-1ULL;
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} |
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void helper_dcbz(target_ulong addr)
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{ |
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do_dcbz(addr, env->dcache_line_size); |
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} |
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void helper_dcbz_970(target_ulong addr)
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{ |
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if (((env->spr[SPR_970_HID5] >> 7) & 0x3) == 1) |
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do_dcbz(addr, 32);
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else
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do_dcbz(addr, env->dcache_line_size); |
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} |
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void helper_icbi(target_ulong addr)
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{ |
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uint32_t tmp; |
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addr = get_addr(addr & ~(env->dcache_line_size - 1));
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/* Invalidate one cache line :
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* PowerPC specification says this is to be treated like a load
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* (not a fetch) by the MMU. To be sure it will be so,
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* do the load "by hand".
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*/
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tmp = ldl(addr); |
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tb_invalidate_page_range(addr, addr + env->icache_line_size); |
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} |
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// XXX: to be tested
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target_ulong helper_lscbx (target_ulong addr, uint32_t reg, uint32_t ra, uint32_t rb) |
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{ |
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int i, c, d;
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d = 24;
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for (i = 0; i < xer_bc; i++) { |
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c = ldub((uint32_t)addr++); |
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/* ra (if not 0) and rb are never modified */
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if (likely(reg != rb && (ra == 0 || reg != ra))) { |
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env->gpr[reg] = (env->gpr[reg] & ~(0xFF << d)) | (c << d);
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} |
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if (unlikely(c == xer_cmp))
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break;
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if (likely(d != 0)) { |
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d -= 8;
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} else {
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d = 24;
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reg++; |
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reg = reg & 0x1F;
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} |
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} |
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return i;
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} |
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/*****************************************************************************/
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/* Fixed point operations helpers */
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#if defined(TARGET_PPC64)
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/* multiply high word */
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uint64_t helper_mulhd (uint64_t arg1, uint64_t arg2) |
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{ |
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uint64_t tl, th; |
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muls64(&tl, &th, arg1, arg2); |
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return th;
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} |
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/* multiply high word unsigned */
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uint64_t helper_mulhdu (uint64_t arg1, uint64_t arg2) |
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{ |
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uint64_t tl, th; |
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mulu64(&tl, &th, arg1, arg2); |
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return th;
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} |
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uint64_t helper_mulldo (uint64_t arg1, uint64_t arg2) |
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{ |
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int64_t th; |
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uint64_t tl; |
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muls64(&tl, (uint64_t *)&th, arg1, arg2); |
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/* If th != 0 && th != -1, then we had an overflow */
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if (likely((uint64_t)(th + 1) <= 1)) { |
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env->xer &= ~(1 << XER_OV);
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} else {
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env->xer |= (1 << XER_OV) | (1 << XER_SO); |
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} |
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return (int64_t)tl;
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} |
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#endif
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target_ulong helper_cntlzw (target_ulong t) |
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{ |
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return clz32(t);
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} |
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#if defined(TARGET_PPC64)
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target_ulong helper_cntlzd (target_ulong t) |
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{ |
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return clz64(t);
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} |
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#endif
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/* shift right arithmetic helper */
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target_ulong helper_sraw (target_ulong value, target_ulong shift) |
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{ |
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int32_t ret; |
291 |
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if (likely(!(shift & 0x20))) { |
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if (likely((uint32_t)shift != 0)) { |
294 |
shift &= 0x1f;
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ret = (int32_t)value >> shift; |
296 |
if (likely(ret >= 0 || (value & ((1 << shift) - 1)) == 0)) { |
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env->xer &= ~(1 << XER_CA);
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} else {
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env->xer |= (1 << XER_CA);
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} |
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} else {
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ret = (int32_t)value; |
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env->xer &= ~(1 << XER_CA);
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} |
305 |
} else {
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ret = (int32_t)value >> 31;
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if (ret) {
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env->xer |= (1 << XER_CA);
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} else {
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env->xer &= ~(1 << XER_CA);
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} |
312 |
} |
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return (target_long)ret;
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} |
315 |
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#if defined(TARGET_PPC64)
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target_ulong helper_srad (target_ulong value, target_ulong shift) |
318 |
{ |
319 |
int64_t ret; |
320 |
|
321 |
if (likely(!(shift & 0x40))) { |
322 |
if (likely((uint64_t)shift != 0)) { |
323 |
shift &= 0x3f;
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ret = (int64_t)value >> shift; |
325 |
if (likely(ret >= 0 || (value & ((1 << shift) - 1)) == 0)) { |
326 |
env->xer &= ~(1 << XER_CA);
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327 |
} else {
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env->xer |= (1 << XER_CA);
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} |
330 |
} else {
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ret = (int64_t)value; |
332 |
env->xer &= ~(1 << XER_CA);
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} |
334 |
} else {
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335 |
ret = (int64_t)value >> 63;
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336 |
if (ret) {
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env->xer |= (1 << XER_CA);
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338 |
} else {
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339 |
env->xer &= ~(1 << XER_CA);
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340 |
} |
341 |
} |
342 |
return ret;
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343 |
} |
344 |
#endif
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345 |
|
346 |
target_ulong helper_popcntb (target_ulong val) |
347 |
{ |
348 |
val = (val & 0x55555555) + ((val >> 1) & 0x55555555); |
349 |
val = (val & 0x33333333) + ((val >> 2) & 0x33333333); |
350 |
val = (val & 0x0f0f0f0f) + ((val >> 4) & 0x0f0f0f0f); |
351 |
return val;
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352 |
} |
353 |
|
354 |
#if defined(TARGET_PPC64)
|
355 |
target_ulong helper_popcntb_64 (target_ulong val) |
356 |
{ |
357 |
val = (val & 0x5555555555555555ULL) + ((val >> 1) & 0x5555555555555555ULL); |
358 |
val = (val & 0x3333333333333333ULL) + ((val >> 2) & 0x3333333333333333ULL); |
359 |
val = (val & 0x0f0f0f0f0f0f0f0fULL) + ((val >> 4) & 0x0f0f0f0f0f0f0f0fULL); |
360 |
return val;
|
361 |
} |
362 |
#endif
|
363 |
|
364 |
/*****************************************************************************/
|
365 |
/* Floating point operations helpers */
|
366 |
uint64_t helper_float32_to_float64(uint32_t arg) |
367 |
{ |
368 |
CPU_FloatU f; |
369 |
CPU_DoubleU d; |
370 |
f.l = arg; |
371 |
d.d = float32_to_float64(f.f, &env->fp_status); |
372 |
return d.ll;
|
373 |
} |
374 |
|
375 |
uint32_t helper_float64_to_float32(uint64_t arg) |
376 |
{ |
377 |
CPU_FloatU f; |
378 |
CPU_DoubleU d; |
379 |
d.ll = arg; |
380 |
f.f = float64_to_float32(d.d, &env->fp_status); |
381 |
return f.l;
|
382 |
} |
383 |
|
384 |
static always_inline int fpisneg (float64 d) |
385 |
{ |
386 |
CPU_DoubleU u; |
387 |
|
388 |
u.d = d; |
389 |
|
390 |
return u.ll >> 63 != 0; |
391 |
} |
392 |
|
393 |
static always_inline int isden (float64 d) |
394 |
{ |
395 |
CPU_DoubleU u; |
396 |
|
397 |
u.d = d; |
398 |
|
399 |
return ((u.ll >> 52) & 0x7FF) == 0; |
400 |
} |
401 |
|
402 |
static always_inline int iszero (float64 d) |
403 |
{ |
404 |
CPU_DoubleU u; |
405 |
|
406 |
u.d = d; |
407 |
|
408 |
return (u.ll & ~0x8000000000000000ULL) == 0; |
409 |
} |
410 |
|
411 |
static always_inline int isinfinity (float64 d) |
412 |
{ |
413 |
CPU_DoubleU u; |
414 |
|
415 |
u.d = d; |
416 |
|
417 |
return ((u.ll >> 52) & 0x7FF) == 0x7FF && |
418 |
(u.ll & 0x000FFFFFFFFFFFFFULL) == 0; |
419 |
} |
420 |
|
421 |
#ifdef CONFIG_SOFTFLOAT
|
422 |
static always_inline int isfinite (float64 d) |
423 |
{ |
424 |
CPU_DoubleU u; |
425 |
|
426 |
u.d = d; |
427 |
|
428 |
return (((u.ll >> 52) & 0x7FF) != 0x7FF); |
429 |
} |
430 |
|
431 |
static always_inline int isnormal (float64 d) |
432 |
{ |
433 |
CPU_DoubleU u; |
434 |
|
435 |
u.d = d; |
436 |
|
437 |
uint32_t exp = (u.ll >> 52) & 0x7FF; |
438 |
return ((0 < exp) && (exp < 0x7FF)); |
439 |
} |
440 |
#endif
|
441 |
|
442 |
uint32_t helper_compute_fprf (uint64_t arg, uint32_t set_fprf) |
443 |
{ |
444 |
CPU_DoubleU farg; |
445 |
int isneg;
|
446 |
int ret;
|
447 |
farg.ll = arg; |
448 |
isneg = fpisneg(farg.d); |
449 |
if (unlikely(float64_is_nan(farg.d))) {
|
450 |
if (float64_is_signaling_nan(farg.d)) {
|
451 |
/* Signaling NaN: flags are undefined */
|
452 |
ret = 0x00;
|
453 |
} else {
|
454 |
/* Quiet NaN */
|
455 |
ret = 0x11;
|
456 |
} |
457 |
} else if (unlikely(isinfinity(farg.d))) { |
458 |
/* +/- infinity */
|
459 |
if (isneg)
|
460 |
ret = 0x09;
|
461 |
else
|
462 |
ret = 0x05;
|
463 |
} else {
|
464 |
if (iszero(farg.d)) {
|
465 |
/* +/- zero */
|
466 |
if (isneg)
|
467 |
ret = 0x12;
|
468 |
else
|
469 |
ret = 0x02;
|
470 |
} else {
|
471 |
if (isden(farg.d)) {
|
472 |
/* Denormalized numbers */
|
473 |
ret = 0x10;
|
474 |
} else {
|
475 |
/* Normalized numbers */
|
476 |
ret = 0x00;
|
477 |
} |
478 |
if (isneg) {
|
479 |
ret |= 0x08;
|
480 |
} else {
|
481 |
ret |= 0x04;
|
482 |
} |
483 |
} |
484 |
} |
485 |
if (set_fprf) {
|
486 |
/* We update FPSCR_FPRF */
|
487 |
env->fpscr &= ~(0x1F << FPSCR_FPRF);
|
488 |
env->fpscr |= ret << FPSCR_FPRF; |
489 |
} |
490 |
/* We just need fpcc to update Rc1 */
|
491 |
return ret & 0xF; |
492 |
} |
493 |
|
494 |
/* Floating-point invalid operations exception */
|
495 |
static always_inline uint64_t fload_invalid_op_excp (int op) |
496 |
{ |
497 |
uint64_t ret = 0;
|
498 |
int ve;
|
499 |
|
500 |
ve = fpscr_ve; |
501 |
if (op & POWERPC_EXCP_FP_VXSNAN) {
|
502 |
/* Operation on signaling NaN */
|
503 |
env->fpscr |= 1 << FPSCR_VXSNAN;
|
504 |
} |
505 |
if (op & POWERPC_EXCP_FP_VXSOFT) {
|
506 |
/* Software-defined condition */
|
507 |
env->fpscr |= 1 << FPSCR_VXSOFT;
|
508 |
} |
509 |
switch (op & ~(POWERPC_EXCP_FP_VXSOFT | POWERPC_EXCP_FP_VXSNAN)) {
|
510 |
case POWERPC_EXCP_FP_VXISI:
|
511 |
/* Magnitude subtraction of infinities */
|
512 |
env->fpscr |= 1 << FPSCR_VXISI;
|
513 |
goto update_arith;
|
514 |
case POWERPC_EXCP_FP_VXIDI:
|
515 |
/* Division of infinity by infinity */
|
516 |
env->fpscr |= 1 << FPSCR_VXIDI;
|
517 |
goto update_arith;
|
518 |
case POWERPC_EXCP_FP_VXZDZ:
|
519 |
/* Division of zero by zero */
|
520 |
env->fpscr |= 1 << FPSCR_VXZDZ;
|
521 |
goto update_arith;
|
522 |
case POWERPC_EXCP_FP_VXIMZ:
|
523 |
/* Multiplication of zero by infinity */
|
524 |
env->fpscr |= 1 << FPSCR_VXIMZ;
|
525 |
goto update_arith;
|
526 |
case POWERPC_EXCP_FP_VXVC:
|
527 |
/* Ordered comparison of NaN */
|
528 |
env->fpscr |= 1 << FPSCR_VXVC;
|
529 |
env->fpscr &= ~(0xF << FPSCR_FPCC);
|
530 |
env->fpscr |= 0x11 << FPSCR_FPCC;
|
531 |
/* We must update the target FPR before raising the exception */
|
532 |
if (ve != 0) { |
533 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
534 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_VXVC; |
535 |
/* Update the floating-point enabled exception summary */
|
536 |
env->fpscr |= 1 << FPSCR_FEX;
|
537 |
/* Exception is differed */
|
538 |
ve = 0;
|
539 |
} |
540 |
break;
|
541 |
case POWERPC_EXCP_FP_VXSQRT:
|
542 |
/* Square root of a negative number */
|
543 |
env->fpscr |= 1 << FPSCR_VXSQRT;
|
544 |
update_arith:
|
545 |
env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI)); |
546 |
if (ve == 0) { |
547 |
/* Set the result to quiet NaN */
|
548 |
ret = UINT64_MAX; |
549 |
env->fpscr &= ~(0xF << FPSCR_FPCC);
|
550 |
env->fpscr |= 0x11 << FPSCR_FPCC;
|
551 |
} |
552 |
break;
|
553 |
case POWERPC_EXCP_FP_VXCVI:
|
554 |
/* Invalid conversion */
|
555 |
env->fpscr |= 1 << FPSCR_VXCVI;
|
556 |
env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI)); |
557 |
if (ve == 0) { |
558 |
/* Set the result to quiet NaN */
|
559 |
ret = UINT64_MAX; |
560 |
env->fpscr &= ~(0xF << FPSCR_FPCC);
|
561 |
env->fpscr |= 0x11 << FPSCR_FPCC;
|
562 |
} |
563 |
break;
|
564 |
} |
565 |
/* Update the floating-point invalid operation summary */
|
566 |
env->fpscr |= 1 << FPSCR_VX;
|
567 |
/* Update the floating-point exception summary */
|
568 |
env->fpscr |= 1 << FPSCR_FX;
|
569 |
if (ve != 0) { |
570 |
/* Update the floating-point enabled exception summary */
|
571 |
env->fpscr |= 1 << FPSCR_FEX;
|
572 |
if (msr_fe0 != 0 || msr_fe1 != 0) |
573 |
raise_exception_err(env, POWERPC_EXCP_PROGRAM, POWERPC_EXCP_FP | op); |
574 |
} |
575 |
return ret;
|
576 |
} |
577 |
|
578 |
static always_inline uint64_t float_zero_divide_excp (uint64_t arg1, uint64_t arg2)
|
579 |
{ |
580 |
env->fpscr |= 1 << FPSCR_ZX;
|
581 |
env->fpscr &= ~((1 << FPSCR_FR) | (1 << FPSCR_FI)); |
582 |
/* Update the floating-point exception summary */
|
583 |
env->fpscr |= 1 << FPSCR_FX;
|
584 |
if (fpscr_ze != 0) { |
585 |
/* Update the floating-point enabled exception summary */
|
586 |
env->fpscr |= 1 << FPSCR_FEX;
|
587 |
if (msr_fe0 != 0 || msr_fe1 != 0) { |
588 |
raise_exception_err(env, POWERPC_EXCP_PROGRAM, |
589 |
POWERPC_EXCP_FP | POWERPC_EXCP_FP_ZX); |
590 |
} |
591 |
} else {
|
592 |
/* Set the result to infinity */
|
593 |
arg1 = ((arg1 ^ arg2) & 0x8000000000000000ULL);
|
594 |
arg1 |= 0x7FFULL << 52; |
595 |
} |
596 |
return arg1;
|
597 |
} |
598 |
|
599 |
static always_inline void float_overflow_excp (void) |
600 |
{ |
601 |
env->fpscr |= 1 << FPSCR_OX;
|
602 |
/* Update the floating-point exception summary */
|
603 |
env->fpscr |= 1 << FPSCR_FX;
|
604 |
if (fpscr_oe != 0) { |
605 |
/* XXX: should adjust the result */
|
606 |
/* Update the floating-point enabled exception summary */
|
607 |
env->fpscr |= 1 << FPSCR_FEX;
|
608 |
/* We must update the target FPR before raising the exception */
|
609 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
610 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_OX; |
611 |
} else {
|
612 |
env->fpscr |= 1 << FPSCR_XX;
|
613 |
env->fpscr |= 1 << FPSCR_FI;
|
614 |
} |
615 |
} |
616 |
|
617 |
static always_inline void float_underflow_excp (void) |
618 |
{ |
619 |
env->fpscr |= 1 << FPSCR_UX;
|
620 |
/* Update the floating-point exception summary */
|
621 |
env->fpscr |= 1 << FPSCR_FX;
|
622 |
if (fpscr_ue != 0) { |
623 |
/* XXX: should adjust the result */
|
624 |
/* Update the floating-point enabled exception summary */
|
625 |
env->fpscr |= 1 << FPSCR_FEX;
|
626 |
/* We must update the target FPR before raising the exception */
|
627 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
628 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_UX; |
629 |
} |
630 |
} |
631 |
|
632 |
static always_inline void float_inexact_excp (void) |
633 |
{ |
634 |
env->fpscr |= 1 << FPSCR_XX;
|
635 |
/* Update the floating-point exception summary */
|
636 |
env->fpscr |= 1 << FPSCR_FX;
|
637 |
if (fpscr_xe != 0) { |
638 |
/* Update the floating-point enabled exception summary */
|
639 |
env->fpscr |= 1 << FPSCR_FEX;
|
640 |
/* We must update the target FPR before raising the exception */
|
641 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
642 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_XX; |
643 |
} |
644 |
} |
645 |
|
646 |
static always_inline void fpscr_set_rounding_mode (void) |
647 |
{ |
648 |
int rnd_type;
|
649 |
|
650 |
/* Set rounding mode */
|
651 |
switch (fpscr_rn) {
|
652 |
case 0: |
653 |
/* Best approximation (round to nearest) */
|
654 |
rnd_type = float_round_nearest_even; |
655 |
break;
|
656 |
case 1: |
657 |
/* Smaller magnitude (round toward zero) */
|
658 |
rnd_type = float_round_to_zero; |
659 |
break;
|
660 |
case 2: |
661 |
/* Round toward +infinite */
|
662 |
rnd_type = float_round_up; |
663 |
break;
|
664 |
default:
|
665 |
case 3: |
666 |
/* Round toward -infinite */
|
667 |
rnd_type = float_round_down; |
668 |
break;
|
669 |
} |
670 |
set_float_rounding_mode(rnd_type, &env->fp_status); |
671 |
} |
672 |
|
673 |
void helper_fpscr_setbit (uint32_t bit)
|
674 |
{ |
675 |
int prev;
|
676 |
|
677 |
prev = (env->fpscr >> bit) & 1;
|
678 |
env->fpscr |= 1 << bit;
|
679 |
if (prev == 0) { |
680 |
switch (bit) {
|
681 |
case FPSCR_VX:
|
682 |
env->fpscr |= 1 << FPSCR_FX;
|
683 |
if (fpscr_ve)
|
684 |
goto raise_ve;
|
685 |
case FPSCR_OX:
|
686 |
env->fpscr |= 1 << FPSCR_FX;
|
687 |
if (fpscr_oe)
|
688 |
goto raise_oe;
|
689 |
break;
|
690 |
case FPSCR_UX:
|
691 |
env->fpscr |= 1 << FPSCR_FX;
|
692 |
if (fpscr_ue)
|
693 |
goto raise_ue;
|
694 |
break;
|
695 |
case FPSCR_ZX:
|
696 |
env->fpscr |= 1 << FPSCR_FX;
|
697 |
if (fpscr_ze)
|
698 |
goto raise_ze;
|
699 |
break;
|
700 |
case FPSCR_XX:
|
701 |
env->fpscr |= 1 << FPSCR_FX;
|
702 |
if (fpscr_xe)
|
703 |
goto raise_xe;
|
704 |
break;
|
705 |
case FPSCR_VXSNAN:
|
706 |
case FPSCR_VXISI:
|
707 |
case FPSCR_VXIDI:
|
708 |
case FPSCR_VXZDZ:
|
709 |
case FPSCR_VXIMZ:
|
710 |
case FPSCR_VXVC:
|
711 |
case FPSCR_VXSOFT:
|
712 |
case FPSCR_VXSQRT:
|
713 |
case FPSCR_VXCVI:
|
714 |
env->fpscr |= 1 << FPSCR_VX;
|
715 |
env->fpscr |= 1 << FPSCR_FX;
|
716 |
if (fpscr_ve != 0) |
717 |
goto raise_ve;
|
718 |
break;
|
719 |
case FPSCR_VE:
|
720 |
if (fpscr_vx != 0) { |
721 |
raise_ve:
|
722 |
env->error_code = POWERPC_EXCP_FP; |
723 |
if (fpscr_vxsnan)
|
724 |
env->error_code |= POWERPC_EXCP_FP_VXSNAN; |
725 |
if (fpscr_vxisi)
|
726 |
env->error_code |= POWERPC_EXCP_FP_VXISI; |
727 |
if (fpscr_vxidi)
|
728 |
env->error_code |= POWERPC_EXCP_FP_VXIDI; |
729 |
if (fpscr_vxzdz)
|
730 |
env->error_code |= POWERPC_EXCP_FP_VXZDZ; |
731 |
if (fpscr_vximz)
|
732 |
env->error_code |= POWERPC_EXCP_FP_VXIMZ; |
733 |
if (fpscr_vxvc)
|
734 |
env->error_code |= POWERPC_EXCP_FP_VXVC; |
735 |
if (fpscr_vxsoft)
|
736 |
env->error_code |= POWERPC_EXCP_FP_VXSOFT; |
737 |
if (fpscr_vxsqrt)
|
738 |
env->error_code |= POWERPC_EXCP_FP_VXSQRT; |
739 |
if (fpscr_vxcvi)
|
740 |
env->error_code |= POWERPC_EXCP_FP_VXCVI; |
741 |
goto raise_excp;
|
742 |
} |
743 |
break;
|
744 |
case FPSCR_OE:
|
745 |
if (fpscr_ox != 0) { |
746 |
raise_oe:
|
747 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_OX; |
748 |
goto raise_excp;
|
749 |
} |
750 |
break;
|
751 |
case FPSCR_UE:
|
752 |
if (fpscr_ux != 0) { |
753 |
raise_ue:
|
754 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_UX; |
755 |
goto raise_excp;
|
756 |
} |
757 |
break;
|
758 |
case FPSCR_ZE:
|
759 |
if (fpscr_zx != 0) { |
760 |
raise_ze:
|
761 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_ZX; |
762 |
goto raise_excp;
|
763 |
} |
764 |
break;
|
765 |
case FPSCR_XE:
|
766 |
if (fpscr_xx != 0) { |
767 |
raise_xe:
|
768 |
env->error_code = POWERPC_EXCP_FP | POWERPC_EXCP_FP_XX; |
769 |
goto raise_excp;
|
770 |
} |
771 |
break;
|
772 |
case FPSCR_RN1:
|
773 |
case FPSCR_RN:
|
774 |
fpscr_set_rounding_mode(); |
775 |
break;
|
776 |
default:
|
777 |
break;
|
778 |
raise_excp:
|
779 |
/* Update the floating-point enabled exception summary */
|
780 |
env->fpscr |= 1 << FPSCR_FEX;
|
781 |
/* We have to update Rc1 before raising the exception */
|
782 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
783 |
break;
|
784 |
} |
785 |
} |
786 |
} |
787 |
|
788 |
void helper_store_fpscr (uint64_t arg, uint32_t mask)
|
789 |
{ |
790 |
/*
|
791 |
* We use only the 32 LSB of the incoming fpr
|
792 |
*/
|
793 |
uint32_t prev, new; |
794 |
int i;
|
795 |
|
796 |
prev = env->fpscr; |
797 |
new = (uint32_t)arg; |
798 |
new &= ~0x90000000;
|
799 |
new |= prev & 0x90000000;
|
800 |
for (i = 0; i < 7; i++) { |
801 |
if (mask & (1 << i)) { |
802 |
env->fpscr &= ~(0xF << (4 * i)); |
803 |
env->fpscr |= new & (0xF << (4 * i)); |
804 |
} |
805 |
} |
806 |
/* Update VX and FEX */
|
807 |
if (fpscr_ix != 0) |
808 |
env->fpscr |= 1 << FPSCR_VX;
|
809 |
else
|
810 |
env->fpscr &= ~(1 << FPSCR_VX);
|
811 |
if ((fpscr_ex & fpscr_eex) != 0) { |
812 |
env->fpscr |= 1 << FPSCR_FEX;
|
813 |
env->exception_index = POWERPC_EXCP_PROGRAM; |
814 |
/* XXX: we should compute it properly */
|
815 |
env->error_code = POWERPC_EXCP_FP; |
816 |
} |
817 |
else
|
818 |
env->fpscr &= ~(1 << FPSCR_FEX);
|
819 |
fpscr_set_rounding_mode(); |
820 |
} |
821 |
|
822 |
void helper_float_check_status (void) |
823 |
{ |
824 |
#ifdef CONFIG_SOFTFLOAT
|
825 |
if (env->exception_index == POWERPC_EXCP_PROGRAM &&
|
826 |
(env->error_code & POWERPC_EXCP_FP)) { |
827 |
/* Differred floating-point exception after target FPR update */
|
828 |
if (msr_fe0 != 0 || msr_fe1 != 0) |
829 |
raise_exception_err(env, env->exception_index, env->error_code); |
830 |
} else if (env->fp_status.float_exception_flags & float_flag_overflow) { |
831 |
float_overflow_excp(); |
832 |
} else if (env->fp_status.float_exception_flags & float_flag_underflow) { |
833 |
float_underflow_excp(); |
834 |
} else if (env->fp_status.float_exception_flags & float_flag_inexact) { |
835 |
float_inexact_excp(); |
836 |
} |
837 |
#else
|
838 |
if (env->exception_index == POWERPC_EXCP_PROGRAM &&
|
839 |
(env->error_code & POWERPC_EXCP_FP)) { |
840 |
/* Differred floating-point exception after target FPR update */
|
841 |
if (msr_fe0 != 0 || msr_fe1 != 0) |
842 |
raise_exception_err(env, env->exception_index, env->error_code); |
843 |
} |
844 |
RETURN(); |
845 |
#endif
|
846 |
} |
847 |
|
848 |
#ifdef CONFIG_SOFTFLOAT
|
849 |
void helper_reset_fpstatus (void) |
850 |
{ |
851 |
env->fp_status.float_exception_flags = 0;
|
852 |
} |
853 |
#endif
|
854 |
|
855 |
/* fadd - fadd. */
|
856 |
uint64_t helper_fadd (uint64_t arg1, uint64_t arg2) |
857 |
{ |
858 |
CPU_DoubleU farg1, farg2; |
859 |
|
860 |
farg1.ll = arg1; |
861 |
farg2.ll = arg2; |
862 |
#if USE_PRECISE_EMULATION
|
863 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
864 |
float64_is_signaling_nan(farg2.d))) { |
865 |
/* sNaN addition */
|
866 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
867 |
} else if (likely(isfinite(farg1.d) || isfinite(farg2.d) || |
868 |
fpisneg(farg1.d) == fpisneg(farg2.d))) { |
869 |
farg1.d = float64_add(farg1.d, farg2.d, &env->fp_status); |
870 |
} else {
|
871 |
/* Magnitude subtraction of infinities */
|
872 |
farg1.ll == fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI); |
873 |
} |
874 |
#else
|
875 |
farg1.d = float64_add(farg1.d, farg2.d, &env->fp_status); |
876 |
#endif
|
877 |
return farg1.ll;
|
878 |
} |
879 |
|
880 |
/* fsub - fsub. */
|
881 |
uint64_t helper_fsub (uint64_t arg1, uint64_t arg2) |
882 |
{ |
883 |
CPU_DoubleU farg1, farg2; |
884 |
|
885 |
farg1.ll = arg1; |
886 |
farg2.ll = arg2; |
887 |
#if USE_PRECISE_EMULATION
|
888 |
{ |
889 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
890 |
float64_is_signaling_nan(farg2.d))) { |
891 |
/* sNaN subtraction */
|
892 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
893 |
} else if (likely(isfinite(farg1.d) || isfinite(farg2.d) || |
894 |
fpisneg(farg1.d) != fpisneg(farg2.d))) { |
895 |
farg1.d = float64_sub(farg1.d, farg2.d, &env->fp_status); |
896 |
} else {
|
897 |
/* Magnitude subtraction of infinities */
|
898 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXISI); |
899 |
} |
900 |
} |
901 |
#else
|
902 |
farg1.d = float64_sub(farg1.d, farg2.d, &env->fp_status); |
903 |
#endif
|
904 |
return farg1.ll;
|
905 |
} |
906 |
|
907 |
/* fmul - fmul. */
|
908 |
uint64_t helper_fmul (uint64_t arg1, uint64_t arg2) |
909 |
{ |
910 |
CPU_DoubleU farg1, farg2; |
911 |
|
912 |
farg1.ll = arg1; |
913 |
farg2.ll = arg2; |
914 |
#if USE_PRECISE_EMULATION
|
915 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
916 |
float64_is_signaling_nan(farg2.d))) { |
917 |
/* sNaN multiplication */
|
918 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
919 |
} else if (unlikely((isinfinity(farg1.d) && iszero(farg2.d)) || |
920 |
(iszero(farg1.d) && isinfinity(farg2.d)))) { |
921 |
/* Multiplication of zero by infinity */
|
922 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXIMZ); |
923 |
} else {
|
924 |
farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status); |
925 |
} |
926 |
} |
927 |
#else
|
928 |
farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status); |
929 |
#endif
|
930 |
return farg1.ll;
|
931 |
} |
932 |
|
933 |
/* fdiv - fdiv. */
|
934 |
uint64_t helper_fdiv (uint64_t arg1, uint64_t arg2) |
935 |
{ |
936 |
CPU_DoubleU farg1, farg2; |
937 |
|
938 |
farg1.ll = arg1; |
939 |
farg2.ll = arg2; |
940 |
#if USE_PRECISE_EMULATION
|
941 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
942 |
float64_is_signaling_nan(farg2.d))) { |
943 |
/* sNaN division */
|
944 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
945 |
} else if (unlikely(isinfinity(farg1.d) && isinfinity(farg2.d))) { |
946 |
/* Division of infinity by infinity */
|
947 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXIDI); |
948 |
} else if (unlikely(iszero(farg2.d))) { |
949 |
if (iszero(farg1.d)) {
|
950 |
/* Division of zero by zero */
|
951 |
farg1.ll fload_invalid_op_excp(POWERPC_EXCP_FP_VXZDZ); |
952 |
} else {
|
953 |
/* Division by zero */
|
954 |
farg1.ll = float_zero_divide_excp(farg1.d, farg2.d); |
955 |
} |
956 |
} else {
|
957 |
farg1.d = float64_div(farg1.d, farg2.d, &env->fp_status); |
958 |
} |
959 |
#else
|
960 |
farg1.d = float64_div(farg1.d, farg2.d, &env->fp_status); |
961 |
#endif
|
962 |
return farg1.ll;
|
963 |
} |
964 |
|
965 |
/* fabs */
|
966 |
uint64_t helper_fabs (uint64_t arg) |
967 |
{ |
968 |
CPU_DoubleU farg; |
969 |
|
970 |
farg.ll = arg; |
971 |
farg.d = float64_abs(farg.d); |
972 |
return farg.ll;
|
973 |
} |
974 |
|
975 |
/* fnabs */
|
976 |
uint64_t helper_fnabs (uint64_t arg) |
977 |
{ |
978 |
CPU_DoubleU farg; |
979 |
|
980 |
farg.ll = arg; |
981 |
farg.d = float64_abs(farg.d); |
982 |
farg.d = float64_chs(farg.d); |
983 |
return farg.ll;
|
984 |
} |
985 |
|
986 |
/* fneg */
|
987 |
uint64_t helper_fneg (uint64_t arg) |
988 |
{ |
989 |
CPU_DoubleU farg; |
990 |
|
991 |
farg.ll = arg; |
992 |
farg.d = float64_chs(farg.d); |
993 |
return farg.ll;
|
994 |
} |
995 |
|
996 |
/* fctiw - fctiw. */
|
997 |
uint64_t helper_fctiw (uint64_t arg) |
998 |
{ |
999 |
CPU_DoubleU farg; |
1000 |
farg.ll = arg; |
1001 |
|
1002 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1003 |
/* sNaN conversion */
|
1004 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI); |
1005 |
} else if (unlikely(float64_is_nan(farg.d) || isinfinity(farg.d))) { |
1006 |
/* qNan / infinity conversion */
|
1007 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
1008 |
} else {
|
1009 |
farg.ll = float64_to_int32(farg.d, &env->fp_status); |
1010 |
#if USE_PRECISE_EMULATION
|
1011 |
/* XXX: higher bits are not supposed to be significant.
|
1012 |
* to make tests easier, return the same as a real PowerPC 750
|
1013 |
*/
|
1014 |
farg.ll |= 0xFFF80000ULL << 32; |
1015 |
#endif
|
1016 |
} |
1017 |
return farg.ll;
|
1018 |
} |
1019 |
|
1020 |
/* fctiwz - fctiwz. */
|
1021 |
uint64_t helper_fctiwz (uint64_t arg) |
1022 |
{ |
1023 |
CPU_DoubleU farg; |
1024 |
farg.ll = arg; |
1025 |
|
1026 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1027 |
/* sNaN conversion */
|
1028 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI); |
1029 |
} else if (unlikely(float64_is_nan(farg.d) || isinfinity(farg.d))) { |
1030 |
/* qNan / infinity conversion */
|
1031 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
1032 |
} else {
|
1033 |
farg.ll = float64_to_int32_round_to_zero(farg.d, &env->fp_status); |
1034 |
#if USE_PRECISE_EMULATION
|
1035 |
/* XXX: higher bits are not supposed to be significant.
|
1036 |
* to make tests easier, return the same as a real PowerPC 750
|
1037 |
*/
|
1038 |
farg.ll |= 0xFFF80000ULL << 32; |
1039 |
#endif
|
1040 |
} |
1041 |
return farg.ll;
|
1042 |
} |
1043 |
|
1044 |
#if defined(TARGET_PPC64)
|
1045 |
/* fcfid - fcfid. */
|
1046 |
uint64_t helper_fcfid (uint64_t arg) |
1047 |
{ |
1048 |
CPU_DoubleU farg; |
1049 |
farg.d = int64_to_float64(arg, &env->fp_status); |
1050 |
return farg.ll;
|
1051 |
} |
1052 |
|
1053 |
/* fctid - fctid. */
|
1054 |
uint64_t helper_fctid (uint64_t arg) |
1055 |
{ |
1056 |
CPU_DoubleU farg; |
1057 |
farg.ll = arg; |
1058 |
|
1059 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1060 |
/* sNaN conversion */
|
1061 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI); |
1062 |
} else if (unlikely(float64_is_nan(farg.d) || isinfinity(farg.d))) { |
1063 |
/* qNan / infinity conversion */
|
1064 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
1065 |
} else {
|
1066 |
farg.ll = float64_to_int64(farg.d, &env->fp_status); |
1067 |
} |
1068 |
return farg.ll;
|
1069 |
} |
1070 |
|
1071 |
/* fctidz - fctidz. */
|
1072 |
uint64_t helper_fctidz (uint64_t arg) |
1073 |
{ |
1074 |
CPU_DoubleU farg; |
1075 |
farg.ll = arg; |
1076 |
|
1077 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1078 |
/* sNaN conversion */
|
1079 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI); |
1080 |
} else if (unlikely(float64_is_nan(farg.d) || isinfinity(farg.d))) { |
1081 |
/* qNan / infinity conversion */
|
1082 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
1083 |
} else {
|
1084 |
farg.ll = float64_to_int64_round_to_zero(farg.d, &env->fp_status); |
1085 |
} |
1086 |
return farg.ll;
|
1087 |
} |
1088 |
|
1089 |
#endif
|
1090 |
|
1091 |
static always_inline uint64_t do_fri (uint64_t arg, int rounding_mode) |
1092 |
{ |
1093 |
CPU_DoubleU farg; |
1094 |
farg.ll = arg; |
1095 |
|
1096 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1097 |
/* sNaN round */
|
1098 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | POWERPC_EXCP_FP_VXCVI); |
1099 |
} else if (unlikely(float64_is_nan(farg.d) || isinfinity(farg.d))) { |
1100 |
/* qNan / infinity round */
|
1101 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXCVI); |
1102 |
} else {
|
1103 |
set_float_rounding_mode(rounding_mode, &env->fp_status); |
1104 |
farg.ll = float64_round_to_int(farg.d, &env->fp_status); |
1105 |
/* Restore rounding mode from FPSCR */
|
1106 |
fpscr_set_rounding_mode(); |
1107 |
} |
1108 |
return farg.ll;
|
1109 |
} |
1110 |
|
1111 |
uint64_t helper_frin (uint64_t arg) |
1112 |
{ |
1113 |
return do_fri(arg, float_round_nearest_even);
|
1114 |
} |
1115 |
|
1116 |
uint64_t helper_friz (uint64_t arg) |
1117 |
{ |
1118 |
return do_fri(arg, float_round_to_zero);
|
1119 |
} |
1120 |
|
1121 |
uint64_t helper_frip (uint64_t arg) |
1122 |
{ |
1123 |
return do_fri(arg, float_round_up);
|
1124 |
} |
1125 |
|
1126 |
uint64_t helper_frim (uint64_t arg) |
1127 |
{ |
1128 |
return do_fri(arg, float_round_down);
|
1129 |
} |
1130 |
|
1131 |
/* fmadd - fmadd. */
|
1132 |
uint64_t helper_fmadd (uint64_t arg1, uint64_t arg2, uint64_t arg3) |
1133 |
{ |
1134 |
CPU_DoubleU farg1, farg2, farg3; |
1135 |
|
1136 |
farg1.ll = arg1; |
1137 |
farg2.ll = arg2; |
1138 |
farg3.ll = arg3; |
1139 |
#if USE_PRECISE_EMULATION
|
1140 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
1141 |
float64_is_signaling_nan(farg2.d) || |
1142 |
float64_is_signaling_nan(farg3.d))) { |
1143 |
/* sNaN operation */
|
1144 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1145 |
} else {
|
1146 |
#ifdef FLOAT128
|
1147 |
/* This is the way the PowerPC specification defines it */
|
1148 |
float128 ft0_128, ft1_128; |
1149 |
|
1150 |
ft0_128 = float64_to_float128(farg1.d, &env->fp_status); |
1151 |
ft1_128 = float64_to_float128(farg2.d, &env->fp_status); |
1152 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
1153 |
ft1_128 = float64_to_float128(farg3.d, &env->fp_status); |
1154 |
ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status); |
1155 |
farg1.d = float128_to_float64(ft0_128, &env->fp_status); |
1156 |
#else
|
1157 |
/* This is OK on x86 hosts */
|
1158 |
farg1.d = (farg1.d * farg2.d) + farg3.d; |
1159 |
#endif
|
1160 |
} |
1161 |
#else
|
1162 |
farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status); |
1163 |
farg1.d = float64_add(farg1.d, farg3.d, &env->fp_status); |
1164 |
#endif
|
1165 |
return farg1.ll;
|
1166 |
} |
1167 |
|
1168 |
/* fmsub - fmsub. */
|
1169 |
uint64_t helper_fmsub (uint64_t arg1, uint64_t arg2, uint64_t arg3) |
1170 |
{ |
1171 |
CPU_DoubleU farg1, farg2, farg3; |
1172 |
|
1173 |
farg1.ll = arg1; |
1174 |
farg2.ll = arg2; |
1175 |
farg3.ll = arg3; |
1176 |
#if USE_PRECISE_EMULATION
|
1177 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
1178 |
float64_is_signaling_nan(farg2.d) || |
1179 |
float64_is_signaling_nan(farg3.d))) { |
1180 |
/* sNaN operation */
|
1181 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1182 |
} else {
|
1183 |
#ifdef FLOAT128
|
1184 |
/* This is the way the PowerPC specification defines it */
|
1185 |
float128 ft0_128, ft1_128; |
1186 |
|
1187 |
ft0_128 = float64_to_float128(farg1.d, &env->fp_status); |
1188 |
ft1_128 = float64_to_float128(farg2.d, &env->fp_status); |
1189 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
1190 |
ft1_128 = float64_to_float128(farg3.d, &env->fp_status); |
1191 |
ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status); |
1192 |
farg1.d = float128_to_float64(ft0_128, &env->fp_status); |
1193 |
#else
|
1194 |
/* This is OK on x86 hosts */
|
1195 |
farg1.d = (farg1.d * farg2.d) - farg3.d; |
1196 |
#endif
|
1197 |
} |
1198 |
#else
|
1199 |
farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status); |
1200 |
farg1.d = float64_sub(farg1.d, farg3.d, &env->fp_status); |
1201 |
#endif
|
1202 |
return farg1.ll;
|
1203 |
} |
1204 |
|
1205 |
/* fnmadd - fnmadd. */
|
1206 |
uint64_t helper_fnmadd (uint64_t arg1, uint64_t arg2, uint64_t arg3) |
1207 |
{ |
1208 |
CPU_DoubleU farg1, farg2, farg3; |
1209 |
|
1210 |
farg1.ll = arg1; |
1211 |
farg2.ll = arg2; |
1212 |
farg3.ll = arg3; |
1213 |
|
1214 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
1215 |
float64_is_signaling_nan(farg2.d) || |
1216 |
float64_is_signaling_nan(farg3.d))) { |
1217 |
/* sNaN operation */
|
1218 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1219 |
} else {
|
1220 |
#if USE_PRECISE_EMULATION
|
1221 |
#ifdef FLOAT128
|
1222 |
/* This is the way the PowerPC specification defines it */
|
1223 |
float128 ft0_128, ft1_128; |
1224 |
|
1225 |
ft0_128 = float64_to_float128(farg1.d, &env->fp_status); |
1226 |
ft1_128 = float64_to_float128(farg2.d, &env->fp_status); |
1227 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
1228 |
ft1_128 = float64_to_float128(farg3.d, &env->fp_status); |
1229 |
ft0_128 = float128_add(ft0_128, ft1_128, &env->fp_status); |
1230 |
farg1.d= float128_to_float64(ft0_128, &env->fp_status); |
1231 |
#else
|
1232 |
/* This is OK on x86 hosts */
|
1233 |
farg1.d = (farg1.d * farg2.d) + farg3.d; |
1234 |
#endif
|
1235 |
#else
|
1236 |
farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status); |
1237 |
farg1.d = float64_add(farg1.d, farg3.d, &env->fp_status); |
1238 |
#endif
|
1239 |
if (likely(!isnan(farg1.d)))
|
1240 |
farg1.d = float64_chs(farg1.d); |
1241 |
} |
1242 |
return farg1.ll;
|
1243 |
} |
1244 |
|
1245 |
/* fnmsub - fnmsub. */
|
1246 |
uint64_t helper_fnmsub (uint64_t arg1, uint64_t arg2, uint64_t arg3) |
1247 |
{ |
1248 |
CPU_DoubleU farg1, farg2, farg3; |
1249 |
|
1250 |
farg1.ll = arg1; |
1251 |
farg2.ll = arg2; |
1252 |
farg3.ll = arg3; |
1253 |
|
1254 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
1255 |
float64_is_signaling_nan(farg2.d) || |
1256 |
float64_is_signaling_nan(farg3.d))) { |
1257 |
/* sNaN operation */
|
1258 |
farg1.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1259 |
} else {
|
1260 |
#if USE_PRECISE_EMULATION
|
1261 |
#ifdef FLOAT128
|
1262 |
/* This is the way the PowerPC specification defines it */
|
1263 |
float128 ft0_128, ft1_128; |
1264 |
|
1265 |
ft0_128 = float64_to_float128(farg1.d, &env->fp_status); |
1266 |
ft1_128 = float64_to_float128(farg2.d, &env->fp_status); |
1267 |
ft0_128 = float128_mul(ft0_128, ft1_128, &env->fp_status); |
1268 |
ft1_128 = float64_to_float128(farg3.d, &env->fp_status); |
1269 |
ft0_128 = float128_sub(ft0_128, ft1_128, &env->fp_status); |
1270 |
farg1.d = float128_to_float64(ft0_128, &env->fp_status); |
1271 |
#else
|
1272 |
/* This is OK on x86 hosts */
|
1273 |
farg1.d = (farg1.d * farg2.d) - farg3.d; |
1274 |
#endif
|
1275 |
#else
|
1276 |
farg1.d = float64_mul(farg1.d, farg2.d, &env->fp_status); |
1277 |
farg1.d = float64_sub(farg1.d, farg3.d, &env->fp_status); |
1278 |
#endif
|
1279 |
if (likely(!isnan(farg1.d)))
|
1280 |
farg1.d = float64_chs(farg1.d); |
1281 |
} |
1282 |
return farg1.ll;
|
1283 |
} |
1284 |
|
1285 |
/* frsp - frsp. */
|
1286 |
uint64_t helper_frsp (uint64_t arg) |
1287 |
{ |
1288 |
CPU_DoubleU farg; |
1289 |
farg.ll = arg; |
1290 |
|
1291 |
#if USE_PRECISE_EMULATION
|
1292 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1293 |
/* sNaN square root */
|
1294 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1295 |
} else {
|
1296 |
fard.d = float64_to_float32(farg.d, &env->fp_status); |
1297 |
} |
1298 |
#else
|
1299 |
farg.d = float64_to_float32(farg.d, &env->fp_status); |
1300 |
#endif
|
1301 |
return farg.ll;
|
1302 |
} |
1303 |
|
1304 |
/* fsqrt - fsqrt. */
|
1305 |
uint64_t helper_fsqrt (uint64_t arg) |
1306 |
{ |
1307 |
CPU_DoubleU farg; |
1308 |
farg.ll = arg; |
1309 |
|
1310 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1311 |
/* sNaN square root */
|
1312 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1313 |
} else if (unlikely(fpisneg(farg.d) && !iszero(farg.d))) { |
1314 |
/* Square root of a negative nonzero number */
|
1315 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSQRT); |
1316 |
} else {
|
1317 |
farg.d = float64_sqrt(farg.d, &env->fp_status); |
1318 |
} |
1319 |
return farg.ll;
|
1320 |
} |
1321 |
|
1322 |
/* fre - fre. */
|
1323 |
uint64_t helper_fre (uint64_t arg) |
1324 |
{ |
1325 |
CPU_DoubleU farg; |
1326 |
farg.ll = arg; |
1327 |
|
1328 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1329 |
/* sNaN reciprocal */
|
1330 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1331 |
} else if (unlikely(iszero(farg.d))) { |
1332 |
/* Zero reciprocal */
|
1333 |
farg.ll = float_zero_divide_excp(1.0, farg.d); |
1334 |
} else if (likely(isnormal(farg.d))) { |
1335 |
farg.d = float64_div(1.0, farg.d, &env->fp_status); |
1336 |
} else {
|
1337 |
if (farg.ll == 0x8000000000000000ULL) { |
1338 |
farg.ll = 0xFFF0000000000000ULL;
|
1339 |
} else if (farg.ll == 0x0000000000000000ULL) { |
1340 |
farg.ll = 0x7FF0000000000000ULL;
|
1341 |
} else if (isnan(farg.d)) { |
1342 |
farg.ll = 0x7FF8000000000000ULL;
|
1343 |
} else if (fpisneg(farg.d)) { |
1344 |
farg.ll = 0x8000000000000000ULL;
|
1345 |
} else {
|
1346 |
farg.ll = 0x0000000000000000ULL;
|
1347 |
} |
1348 |
} |
1349 |
return farg.d;
|
1350 |
} |
1351 |
|
1352 |
/* fres - fres. */
|
1353 |
uint64_t helper_fres (uint64_t arg) |
1354 |
{ |
1355 |
CPU_DoubleU farg; |
1356 |
farg.ll = arg; |
1357 |
|
1358 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1359 |
/* sNaN reciprocal */
|
1360 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1361 |
} else if (unlikely(iszero(farg.d))) { |
1362 |
/* Zero reciprocal */
|
1363 |
farg.ll = float_zero_divide_excp(1.0, farg.d); |
1364 |
} else if (likely(isnormal(farg.d))) { |
1365 |
#if USE_PRECISE_EMULATION
|
1366 |
farg.d = float64_div(1.0, farg.d, &env->fp_status); |
1367 |
farg.d = float64_to_float32(farg.d, &env->fp_status); |
1368 |
#else
|
1369 |
farg.d = float32_div(1.0, farg.d, &env->fp_status); |
1370 |
#endif
|
1371 |
} else {
|
1372 |
if (farg.ll == 0x8000000000000000ULL) { |
1373 |
farg.ll = 0xFFF0000000000000ULL;
|
1374 |
} else if (farg.ll == 0x0000000000000000ULL) { |
1375 |
farg.ll = 0x7FF0000000000000ULL;
|
1376 |
} else if (isnan(farg.d)) { |
1377 |
farg.ll = 0x7FF8000000000000ULL;
|
1378 |
} else if (fpisneg(farg.d)) { |
1379 |
farg.ll = 0x8000000000000000ULL;
|
1380 |
} else {
|
1381 |
farg.ll = 0x0000000000000000ULL;
|
1382 |
} |
1383 |
} |
1384 |
return farg.ll;
|
1385 |
} |
1386 |
|
1387 |
/* frsqrte - frsqrte. */
|
1388 |
uint64_t helper_frsqrte (uint64_t arg) |
1389 |
{ |
1390 |
CPU_DoubleU farg; |
1391 |
farg.ll = arg; |
1392 |
|
1393 |
if (unlikely(float64_is_signaling_nan(farg.d))) {
|
1394 |
/* sNaN reciprocal square root */
|
1395 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1396 |
} else if (unlikely(fpisneg(farg.d) && !iszero(farg.d))) { |
1397 |
/* Reciprocal square root of a negative nonzero number */
|
1398 |
farg.ll = fload_invalid_op_excp(POWERPC_EXCP_FP_VXSQRT); |
1399 |
} else if (likely(isnormal(farg.d))) { |
1400 |
farg.d = float64_sqrt(farg.d, &env->fp_status); |
1401 |
farg.d = float32_div(1.0, farg.d, &env->fp_status); |
1402 |
} else {
|
1403 |
if (farg.ll == 0x8000000000000000ULL) { |
1404 |
farg.ll = 0xFFF0000000000000ULL;
|
1405 |
} else if (farg.ll == 0x0000000000000000ULL) { |
1406 |
farg.ll = 0x7FF0000000000000ULL;
|
1407 |
} else if (isnan(farg.d)) { |
1408 |
farg.ll |= 0x000FFFFFFFFFFFFFULL;
|
1409 |
} else if (fpisneg(farg.d)) { |
1410 |
farg.ll = 0x7FF8000000000000ULL;
|
1411 |
} else {
|
1412 |
farg.ll = 0x0000000000000000ULL;
|
1413 |
} |
1414 |
} |
1415 |
return farg.ll;
|
1416 |
} |
1417 |
|
1418 |
/* fsel - fsel. */
|
1419 |
uint64_t helper_fsel (uint64_t arg1, uint64_t arg2, uint64_t arg3) |
1420 |
{ |
1421 |
CPU_DoubleU farg1, farg2, farg3; |
1422 |
|
1423 |
farg1.ll = arg1; |
1424 |
farg2.ll = arg2; |
1425 |
farg3.ll = arg3; |
1426 |
|
1427 |
if (!fpisneg(farg1.d) || iszero(farg1.d))
|
1428 |
return farg2.ll;
|
1429 |
else
|
1430 |
return farg2.ll;
|
1431 |
} |
1432 |
|
1433 |
uint32_t helper_fcmpu (uint64_t arg1, uint64_t arg2) |
1434 |
{ |
1435 |
CPU_DoubleU farg1, farg2; |
1436 |
uint32_t ret = 0;
|
1437 |
farg1.ll = arg1; |
1438 |
farg2.ll = arg2; |
1439 |
|
1440 |
if (unlikely(float64_is_signaling_nan(farg1.d) ||
|
1441 |
float64_is_signaling_nan(farg2.d))) { |
1442 |
/* sNaN comparison */
|
1443 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN); |
1444 |
} else {
|
1445 |
if (float64_lt(farg1.d, farg2.d, &env->fp_status)) {
|
1446 |
ret = 0x08UL;
|
1447 |
} else if (!float64_le(farg1.d, farg2.d, &env->fp_status)) { |
1448 |
ret = 0x04UL;
|
1449 |
} else {
|
1450 |
ret = 0x02UL;
|
1451 |
} |
1452 |
} |
1453 |
env->fpscr &= ~(0x0F << FPSCR_FPRF);
|
1454 |
env->fpscr |= ret << FPSCR_FPRF; |
1455 |
return ret;
|
1456 |
} |
1457 |
|
1458 |
uint32_t helper_fcmpo (uint64_t arg1, uint64_t arg2) |
1459 |
{ |
1460 |
CPU_DoubleU farg1, farg2; |
1461 |
uint32_t ret = 0;
|
1462 |
farg1.ll = arg1; |
1463 |
farg2.ll = arg2; |
1464 |
|
1465 |
if (unlikely(float64_is_nan(farg1.d) ||
|
1466 |
float64_is_nan(farg2.d))) { |
1467 |
if (float64_is_signaling_nan(farg1.d) ||
|
1468 |
float64_is_signaling_nan(farg2.d)) { |
1469 |
/* sNaN comparison */
|
1470 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXSNAN | |
1471 |
POWERPC_EXCP_FP_VXVC); |
1472 |
} else {
|
1473 |
/* qNaN comparison */
|
1474 |
fload_invalid_op_excp(POWERPC_EXCP_FP_VXVC); |
1475 |
} |
1476 |
} else {
|
1477 |
if (float64_lt(farg1.d, farg2.d, &env->fp_status)) {
|
1478 |
ret = 0x08UL;
|
1479 |
} else if (!float64_le(farg1.d, farg2.d, &env->fp_status)) { |
1480 |
ret = 0x04UL;
|
1481 |
} else {
|
1482 |
ret = 0x02UL;
|
1483 |
} |
1484 |
} |
1485 |
env->fpscr &= ~(0x0F << FPSCR_FPRF);
|
1486 |
env->fpscr |= ret << FPSCR_FPRF; |
1487 |
return ret;
|
1488 |
} |
1489 |
|
1490 |
#if !defined (CONFIG_USER_ONLY)
|
1491 |
void helper_store_msr (target_ulong val)
|
1492 |
{ |
1493 |
val = hreg_store_msr(env, val, 0);
|
1494 |
if (val != 0) { |
1495 |
env->interrupt_request |= CPU_INTERRUPT_EXITTB; |
1496 |
raise_exception(env, val); |
1497 |
} |
1498 |
} |
1499 |
|
1500 |
void cpu_dump_rfi (target_ulong RA, target_ulong msr);
|
1501 |
|
1502 |
static always_inline void do_rfi (target_ulong nip, target_ulong msr, |
1503 |
target_ulong msrm, int keep_msrh)
|
1504 |
{ |
1505 |
#if defined(TARGET_PPC64)
|
1506 |
if (msr & (1ULL << MSR_SF)) { |
1507 |
nip = (uint64_t)nip; |
1508 |
msr &= (uint64_t)msrm; |
1509 |
} else {
|
1510 |
nip = (uint32_t)nip; |
1511 |
msr = (uint32_t)(msr & msrm); |
1512 |
if (keep_msrh)
|
1513 |
msr |= env->msr & ~((uint64_t)0xFFFFFFFF);
|
1514 |
} |
1515 |
#else
|
1516 |
nip = (uint32_t)nip; |
1517 |
msr &= (uint32_t)msrm; |
1518 |
#endif
|
1519 |
/* XXX: beware: this is false if VLE is supported */
|
1520 |
env->nip = nip & ~((target_ulong)0x00000003);
|
1521 |
hreg_store_msr(env, msr, 1);
|
1522 |
#if defined (DEBUG_OP)
|
1523 |
cpu_dump_rfi(env->nip, env->msr); |
1524 |
#endif
|
1525 |
/* No need to raise an exception here,
|
1526 |
* as rfi is always the last insn of a TB
|
1527 |
*/
|
1528 |
env->interrupt_request |= CPU_INTERRUPT_EXITTB; |
1529 |
} |
1530 |
|
1531 |
void helper_rfi (void) |
1532 |
{ |
1533 |
do_rfi(env->spr[SPR_SRR0], env->spr[SPR_SRR1], |
1534 |
~((target_ulong)0xFFFF0000), 1); |
1535 |
} |
1536 |
|
1537 |
#if defined(TARGET_PPC64)
|
1538 |
void helper_rfid (void) |
1539 |
{ |
1540 |
do_rfi(env->spr[SPR_SRR0], env->spr[SPR_SRR1], |
1541 |
~((target_ulong)0xFFFF0000), 0); |
1542 |
} |
1543 |
|
1544 |
void helper_hrfid (void) |
1545 |
{ |
1546 |
do_rfi(env->spr[SPR_HSRR0], env->spr[SPR_HSRR1], |
1547 |
~((target_ulong)0xFFFF0000), 0); |
1548 |
} |
1549 |
#endif
|
1550 |
#endif
|
1551 |
|
1552 |
void helper_tw (target_ulong arg1, target_ulong arg2, uint32_t flags)
|
1553 |
{ |
1554 |
if (!likely(!(((int32_t)arg1 < (int32_t)arg2 && (flags & 0x10)) || |
1555 |
((int32_t)arg1 > (int32_t)arg2 && (flags & 0x08)) ||
|
1556 |
((int32_t)arg1 == (int32_t)arg2 && (flags & 0x04)) ||
|
1557 |
((uint32_t)arg1 < (uint32_t)arg2 && (flags & 0x02)) ||
|
1558 |
((uint32_t)arg1 > (uint32_t)arg2 && (flags & 0x01))))) {
|
1559 |
raise_exception_err(env, POWERPC_EXCP_PROGRAM, POWERPC_EXCP_TRAP); |
1560 |
} |
1561 |
} |
1562 |
|
1563 |
#if defined(TARGET_PPC64)
|
1564 |
void helper_td (target_ulong arg1, target_ulong arg2, uint32_t flags)
|
1565 |
{ |
1566 |
if (!likely(!(((int64_t)arg1 < (int64_t)arg2 && (flags & 0x10)) || |
1567 |
((int64_t)arg1 > (int64_t)arg2 && (flags & 0x08)) ||
|
1568 |
((int64_t)arg1 == (int64_t)arg2 && (flags & 0x04)) ||
|
1569 |
((uint64_t)arg1 < (uint64_t)arg2 && (flags & 0x02)) ||
|
1570 |
((uint64_t)arg1 > (uint64_t)arg2 && (flags & 0x01)))))
|
1571 |
raise_exception_err(env, POWERPC_EXCP_PROGRAM, POWERPC_EXCP_TRAP); |
1572 |
} |
1573 |
#endif
|
1574 |
|
1575 |
/*****************************************************************************/
|
1576 |
/* PowerPC 601 specific instructions (POWER bridge) */
|
1577 |
void do_POWER_abso (void) |
1578 |
{ |
1579 |
if ((int32_t)T0 == INT32_MIN) {
|
1580 |
T0 = INT32_MAX; |
1581 |
env->xer |= (1 << XER_OV) | (1 << XER_SO); |
1582 |
} else if ((int32_t)T0 < 0) { |
1583 |
T0 = -T0; |
1584 |
env->xer &= ~(1 << XER_OV);
|
1585 |
} else {
|
1586 |
env->xer &= ~(1 << XER_OV);
|
1587 |
} |
1588 |
} |
1589 |
|
1590 |
target_ulong helper_clcs (uint32_t arg) |
1591 |
{ |
1592 |
switch (arg) {
|
1593 |
case 0x0CUL: |
1594 |
/* Instruction cache line size */
|
1595 |
return env->icache_line_size;
|
1596 |
break;
|
1597 |
case 0x0DUL: |
1598 |
/* Data cache line size */
|
1599 |
return env->dcache_line_size;
|
1600 |
break;
|
1601 |
case 0x0EUL: |
1602 |
/* Minimum cache line size */
|
1603 |
return (env->icache_line_size < env->dcache_line_size) ?
|
1604 |
env->icache_line_size : env->dcache_line_size; |
1605 |
break;
|
1606 |
case 0x0FUL: |
1607 |
/* Maximum cache line size */
|
1608 |
return (env->icache_line_size > env->dcache_line_size) ?
|
1609 |
env->icache_line_size : env->dcache_line_size; |
1610 |
break;
|
1611 |
default:
|
1612 |
/* Undefined */
|
1613 |
return 0; |
1614 |
break;
|
1615 |
} |
1616 |
} |
1617 |
|
1618 |
target_ulong helper_div (target_ulong arg1, target_ulong arg2) |
1619 |
{ |
1620 |
uint64_t tmp = (uint64_t)arg1 << 32 | env->spr[SPR_MQ];
|
1621 |
|
1622 |
if (((int32_t)tmp == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
1623 |
(int32_t)arg2 == 0) {
|
1624 |
env->spr[SPR_MQ] = 0;
|
1625 |
return INT32_MIN;
|
1626 |
} else {
|
1627 |
env->spr[SPR_MQ] = tmp % arg2; |
1628 |
return tmp / (int32_t)arg2;
|
1629 |
} |
1630 |
} |
1631 |
|
1632 |
target_ulong helper_divo (target_ulong arg1, target_ulong arg2) |
1633 |
{ |
1634 |
uint64_t tmp = (uint64_t)arg1 << 32 | env->spr[SPR_MQ];
|
1635 |
|
1636 |
if (((int32_t)tmp == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
1637 |
(int32_t)arg2 == 0) {
|
1638 |
env->xer |= (1 << XER_OV) | (1 << XER_SO); |
1639 |
env->spr[SPR_MQ] = 0;
|
1640 |
return INT32_MIN;
|
1641 |
} else {
|
1642 |
env->spr[SPR_MQ] = tmp % arg2; |
1643 |
tmp /= (int32_t)arg2; |
1644 |
if ((int32_t)tmp != tmp) {
|
1645 |
env->xer |= (1 << XER_OV) | (1 << XER_SO); |
1646 |
} else {
|
1647 |
env->xer &= ~(1 << XER_OV);
|
1648 |
} |
1649 |
return tmp;
|
1650 |
} |
1651 |
} |
1652 |
|
1653 |
target_ulong helper_divs (target_ulong arg1, target_ulong arg2) |
1654 |
{ |
1655 |
if (((int32_t)arg1 == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
1656 |
(int32_t)arg2 == 0) {
|
1657 |
env->spr[SPR_MQ] = 0;
|
1658 |
return INT32_MIN;
|
1659 |
} else {
|
1660 |
env->spr[SPR_MQ] = (int32_t)arg1 % (int32_t)arg2; |
1661 |
return (int32_t)arg1 / (int32_t)arg2;
|
1662 |
} |
1663 |
} |
1664 |
|
1665 |
target_ulong helper_divso (target_ulong arg1, target_ulong arg2) |
1666 |
{ |
1667 |
if (((int32_t)arg1 == INT32_MIN && (int32_t)arg2 == (int32_t)-1) || |
1668 |
(int32_t)arg2 == 0) {
|
1669 |
env->xer |= (1 << XER_OV) | (1 << XER_SO); |
1670 |
env->spr[SPR_MQ] = 0;
|
1671 |
return INT32_MIN;
|
1672 |
} else {
|
1673 |
env->xer &= ~(1 << XER_OV);
|
1674 |
env->spr[SPR_MQ] = (int32_t)arg1 % (int32_t)arg2; |
1675 |
return (int32_t)arg1 / (int32_t)arg2;
|
1676 |
} |
1677 |
} |
1678 |
|
1679 |
#if !defined (CONFIG_USER_ONLY)
|
1680 |
target_ulong helper_rac (target_ulong addr) |
1681 |
{ |
1682 |
mmu_ctx_t ctx; |
1683 |
int nb_BATs;
|
1684 |
target_ulong ret = 0;
|
1685 |
|
1686 |
/* We don't have to generate many instances of this instruction,
|
1687 |
* as rac is supervisor only.
|
1688 |
*/
|
1689 |
/* XXX: FIX THIS: Pretend we have no BAT */
|
1690 |
nb_BATs = env->nb_BATs; |
1691 |
env->nb_BATs = 0;
|
1692 |
if (get_physical_address(env, &ctx, addr, 0, ACCESS_INT) == 0) |
1693 |
ret = ctx.raddr; |
1694 |
env->nb_BATs = nb_BATs; |
1695 |
return ret;
|
1696 |
} |
1697 |
|
1698 |
void helper_rfsvc (void) |
1699 |
{ |
1700 |
do_rfi(env->lr, env->ctr, 0x0000FFFF, 0); |
1701 |
} |
1702 |
|
1703 |
void do_store_hid0_601 (void) |
1704 |
{ |
1705 |
uint32_t hid0; |
1706 |
|
1707 |
hid0 = env->spr[SPR_HID0]; |
1708 |
if ((T0 ^ hid0) & 0x00000008) { |
1709 |
/* Change current endianness */
|
1710 |
env->hflags &= ~(1 << MSR_LE);
|
1711 |
env->hflags_nmsr &= ~(1 << MSR_LE);
|
1712 |
env->hflags_nmsr |= (1 << MSR_LE) & (((T0 >> 3) & 1) << MSR_LE); |
1713 |
env->hflags |= env->hflags_nmsr; |
1714 |
if (loglevel != 0) { |
1715 |
fprintf(logfile, "%s: set endianness to %c => " ADDRX "\n", |
1716 |
__func__, T0 & 0x8 ? 'l' : 'b', env->hflags); |
1717 |
} |
1718 |
} |
1719 |
env->spr[SPR_HID0] = T0; |
1720 |
} |
1721 |
#endif
|
1722 |
|
1723 |
/*****************************************************************************/
|
1724 |
/* 602 specific instructions */
|
1725 |
/* mfrom is the most crazy instruction ever seen, imho ! */
|
1726 |
/* Real implementation uses a ROM table. Do the same */
|
1727 |
#define USE_MFROM_ROM_TABLE
|
1728 |
target_ulong helper_602_mfrom (target_ulong arg) |
1729 |
{ |
1730 |
if (likely(arg < 602)) { |
1731 |
#if defined(USE_MFROM_ROM_TABLE)
|
1732 |
#include "mfrom_table.c" |
1733 |
return mfrom_ROM_table[T0];
|
1734 |
#else
|
1735 |
double d;
|
1736 |
/* Extremly decomposed:
|
1737 |
* -arg / 256
|
1738 |
* return 256 * log10(10 + 1.0) + 0.5
|
1739 |
*/
|
1740 |
d = arg; |
1741 |
d = float64_div(d, 256, &env->fp_status);
|
1742 |
d = float64_chs(d); |
1743 |
d = exp10(d); // XXX: use float emulation function
|
1744 |
d = float64_add(d, 1.0, &env->fp_status); |
1745 |
d = log10(d); // XXX: use float emulation function
|
1746 |
d = float64_mul(d, 256, &env->fp_status);
|
1747 |
d = float64_add(d, 0.5, &env->fp_status); |
1748 |
return float64_round_to_int(d, &env->fp_status);
|
1749 |
#endif
|
1750 |
} else {
|
1751 |
return 0; |
1752 |
} |
1753 |
} |
1754 |
|
1755 |
/*****************************************************************************/
|
1756 |
/* Embedded PowerPC specific helpers */
|
1757 |
|
1758 |
/* XXX: to be improved to check access rights when in user-mode */
|
1759 |
target_ulong helper_load_dcr (target_ulong dcrn) |
1760 |
{ |
1761 |
target_ulong val = 0;
|
1762 |
|
1763 |
if (unlikely(env->dcr_env == NULL)) { |
1764 |
if (loglevel != 0) { |
1765 |
fprintf(logfile, "No DCR environment\n");
|
1766 |
} |
1767 |
raise_exception_err(env, POWERPC_EXCP_PROGRAM, |
1768 |
POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL); |
1769 |
} else if (unlikely(ppc_dcr_read(env->dcr_env, dcrn, &val) != 0)) { |
1770 |
if (loglevel != 0) { |
1771 |
fprintf(logfile, "DCR read error %d %03x\n", (int)T0, (int)T0); |
1772 |
} |
1773 |
raise_exception_err(env, POWERPC_EXCP_PROGRAM, |
1774 |
POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG); |
1775 |
} |
1776 |
return val;
|
1777 |
} |
1778 |
|
1779 |
void helper_store_dcr (target_ulong dcrn, target_ulong val)
|
1780 |
{ |
1781 |
if (unlikely(env->dcr_env == NULL)) { |
1782 |
if (loglevel != 0) { |
1783 |
fprintf(logfile, "No DCR environment\n");
|
1784 |
} |
1785 |
raise_exception_err(env, POWERPC_EXCP_PROGRAM, |
1786 |
POWERPC_EXCP_INVAL | POWERPC_EXCP_INVAL_INVAL); |
1787 |
} else if (unlikely(ppc_dcr_write(env->dcr_env, dcrn, val) != 0)) { |
1788 |
if (loglevel != 0) { |
1789 |
fprintf(logfile, "DCR write error %d %03x\n", (int)T0, (int)T0); |
1790 |
} |
1791 |
raise_exception_err(env, POWERPC_EXCP_PROGRAM, |
1792 |
POWERPC_EXCP_INVAL | POWERPC_EXCP_PRIV_REG); |
1793 |
} |
1794 |
} |
1795 |
|
1796 |
#if !defined(CONFIG_USER_ONLY)
|
1797 |
void helper_40x_rfci (void) |
1798 |
{ |
1799 |
do_rfi(env->spr[SPR_40x_SRR2], env->spr[SPR_40x_SRR3], |
1800 |
~((target_ulong)0xFFFF0000), 0); |
1801 |
} |
1802 |
|
1803 |
void helper_rfci (void) |
1804 |
{ |
1805 |
do_rfi(env->spr[SPR_BOOKE_CSRR0], SPR_BOOKE_CSRR1, |
1806 |
~((target_ulong)0x3FFF0000), 0); |
1807 |
} |
1808 |
|
1809 |
void helper_rfdi (void) |
1810 |
{ |
1811 |
do_rfi(env->spr[SPR_BOOKE_DSRR0], SPR_BOOKE_DSRR1, |
1812 |
~((target_ulong)0x3FFF0000), 0); |
1813 |
} |
1814 |
|
1815 |
void helper_rfmci (void) |
1816 |
{ |
1817 |
do_rfi(env->spr[SPR_BOOKE_MCSRR0], SPR_BOOKE_MCSRR1, |
1818 |
~((target_ulong)0x3FFF0000), 0); |
1819 |
} |
1820 |
|
1821 |
void do_load_403_pb (int num) |
1822 |
{ |
1823 |
T0 = env->pb[num]; |
1824 |
} |
1825 |
|
1826 |
void do_store_403_pb (int num) |
1827 |
{ |
1828 |
if (likely(env->pb[num] != T0)) {
|
1829 |
env->pb[num] = T0; |
1830 |
/* Should be optimized */
|
1831 |
tlb_flush(env, 1);
|
1832 |
} |
1833 |
} |
1834 |
#endif
|
1835 |
|
1836 |
/* 440 specific */
|
1837 |
target_ulong helper_dlmzb (target_ulong high, target_ulong low, uint32_t update_Rc) |
1838 |
{ |
1839 |
target_ulong mask; |
1840 |
int i;
|
1841 |
|
1842 |
i = 1;
|
1843 |
for (mask = 0xFF000000; mask != 0; mask = mask >> 8) { |
1844 |
if ((high & mask) == 0) { |
1845 |
if (update_Rc) {
|
1846 |
env->crf[0] = 0x4; |
1847 |
} |
1848 |
goto done;
|
1849 |
} |
1850 |
i++; |
1851 |
} |
1852 |
for (mask = 0xFF000000; mask != 0; mask = mask >> 8) { |
1853 |
if ((low & mask) == 0) { |
1854 |
if (update_Rc) {
|
1855 |
env->crf[0] = 0x8; |
1856 |
} |
1857 |
goto done;
|
1858 |
} |
1859 |
i++; |
1860 |
} |
1861 |
if (update_Rc) {
|
1862 |
env->crf[0] = 0x2; |
1863 |
} |
1864 |
done:
|
1865 |
env->xer = (env->xer & ~0x7F) | i;
|
1866 |
if (update_Rc) {
|
1867 |
env->crf[0] |= xer_so;
|
1868 |
} |
1869 |
return i;
|
1870 |
} |
1871 |
|
1872 |
/*****************************************************************************/
|
1873 |
/* SPE extension helpers */
|
1874 |
/* Use a table to make this quicker */
|
1875 |
static uint8_t hbrev[16] = { |
1876 |
0x0, 0x8, 0x4, 0xC, 0x2, 0xA, 0x6, 0xE, |
1877 |
0x1, 0x9, 0x5, 0xD, 0x3, 0xB, 0x7, 0xF, |
1878 |
}; |
1879 |
|
1880 |
static always_inline uint8_t byte_reverse (uint8_t val)
|
1881 |
{ |
1882 |
return hbrev[val >> 4] | (hbrev[val & 0xF] << 4); |
1883 |
} |
1884 |
|
1885 |
static always_inline uint32_t word_reverse (uint32_t val)
|
1886 |
{ |
1887 |
return byte_reverse(val >> 24) | (byte_reverse(val >> 16) << 8) | |
1888 |
(byte_reverse(val >> 8) << 16) | (byte_reverse(val) << 24); |
1889 |
} |
1890 |
|
1891 |
#define MASKBITS 16 // Random value - to be fixed (implementation dependant) |
1892 |
target_ulong helper_brinc (target_ulong arg1, target_ulong arg2) |
1893 |
{ |
1894 |
uint32_t a, b, d, mask; |
1895 |
|
1896 |
mask = UINT32_MAX >> (32 - MASKBITS);
|
1897 |
a = arg1 & mask; |
1898 |
b = arg2 & mask; |
1899 |
d = word_reverse(1 + word_reverse(a | ~b));
|
1900 |
return (arg1 & ~mask) | (d & b);
|
1901 |
} |
1902 |
|
1903 |
uint32_t helper_cntlsw32 (uint32_t val) |
1904 |
{ |
1905 |
if (val & 0x80000000) |
1906 |
return clz32(~val);
|
1907 |
else
|
1908 |
return clz32(val);
|
1909 |
} |
1910 |
|
1911 |
uint32_t helper_cntlzw32 (uint32_t val) |
1912 |
{ |
1913 |
return clz32(val);
|
1914 |
} |
1915 |
|
1916 |
/* Single-precision floating-point conversions */
|
1917 |
static always_inline uint32_t efscfsi (uint32_t val)
|
1918 |
{ |
1919 |
CPU_FloatU u; |
1920 |
|
1921 |
u.f = int32_to_float32(val, &env->spe_status); |
1922 |
|
1923 |
return u.l;
|
1924 |
} |
1925 |
|
1926 |
static always_inline uint32_t efscfui (uint32_t val)
|
1927 |
{ |
1928 |
CPU_FloatU u; |
1929 |
|
1930 |
u.f = uint32_to_float32(val, &env->spe_status); |
1931 |
|
1932 |
return u.l;
|
1933 |
} |
1934 |
|
1935 |
static always_inline int32_t efsctsi (uint32_t val)
|
1936 |
{ |
1937 |
CPU_FloatU u; |
1938 |
|
1939 |
u.l = val; |
1940 |
/* NaN are not treated the same way IEEE 754 does */
|
1941 |
if (unlikely(isnan(u.f)))
|
1942 |
return 0; |
1943 |
|
1944 |
return float32_to_int32(u.f, &env->spe_status);
|
1945 |
} |
1946 |
|
1947 |
static always_inline uint32_t efsctui (uint32_t val)
|
1948 |
{ |
1949 |
CPU_FloatU u; |
1950 |
|
1951 |
u.l = val; |
1952 |
/* NaN are not treated the same way IEEE 754 does */
|
1953 |
if (unlikely(isnan(u.f)))
|
1954 |
return 0; |
1955 |
|
1956 |
return float32_to_uint32(u.f, &env->spe_status);
|
1957 |
} |
1958 |
|
1959 |
static always_inline uint32_t efsctsiz (uint32_t val)
|
1960 |
{ |
1961 |
CPU_FloatU u; |
1962 |
|
1963 |
u.l = val; |
1964 |
/* NaN are not treated the same way IEEE 754 does */
|
1965 |
if (unlikely(isnan(u.f)))
|
1966 |
return 0; |
1967 |
|
1968 |
return float32_to_int32_round_to_zero(u.f, &env->spe_status);
|
1969 |
} |
1970 |
|
1971 |
static always_inline uint32_t efsctuiz (uint32_t val)
|
1972 |
{ |
1973 |
CPU_FloatU u; |
1974 |
|
1975 |
u.l = val; |
1976 |
/* NaN are not treated the same way IEEE 754 does */
|
1977 |
if (unlikely(isnan(u.f)))
|
1978 |
return 0; |
1979 |
|
1980 |
return float32_to_uint32_round_to_zero(u.f, &env->spe_status);
|
1981 |
} |
1982 |
|
1983 |
static always_inline uint32_t efscfsf (uint32_t val)
|
1984 |
{ |
1985 |
CPU_FloatU u; |
1986 |
float32 tmp; |
1987 |
|
1988 |
u.f = int32_to_float32(val, &env->spe_status); |
1989 |
tmp = int64_to_float32(1ULL << 32, &env->spe_status); |
1990 |
u.f = float32_div(u.f, tmp, &env->spe_status); |
1991 |
|
1992 |
return u.l;
|
1993 |
} |
1994 |
|
1995 |
static always_inline uint32_t efscfuf (uint32_t val)
|
1996 |
{ |
1997 |
CPU_FloatU u; |
1998 |
float32 tmp; |
1999 |
|
2000 |
u.f = uint32_to_float32(val, &env->spe_status); |
2001 |
tmp = uint64_to_float32(1ULL << 32, &env->spe_status); |
2002 |
u.f = float32_div(u.f, tmp, &env->spe_status); |
2003 |
|
2004 |
return u.l;
|
2005 |
} |
2006 |
|
2007 |
static always_inline uint32_t efsctsf (uint32_t val)
|
2008 |
{ |
2009 |
CPU_FloatU u; |
2010 |
float32 tmp; |
2011 |
|
2012 |
u.l = val; |
2013 |
/* NaN are not treated the same way IEEE 754 does */
|
2014 |
if (unlikely(isnan(u.f)))
|
2015 |
return 0; |
2016 |
tmp = uint64_to_float32(1ULL << 32, &env->spe_status); |
2017 |
u.f = float32_mul(u.f, tmp, &env->spe_status); |
2018 |
|
2019 |
return float32_to_int32(u.f, &env->spe_status);
|
2020 |
} |
2021 |
|
2022 |
static always_inline uint32_t efsctuf (uint32_t val)
|
2023 |
{ |
2024 |
CPU_FloatU u; |
2025 |
float32 tmp; |
2026 |
|
2027 |
u.l = val; |
2028 |
/* NaN are not treated the same way IEEE 754 does */
|
2029 |
if (unlikely(isnan(u.f)))
|
2030 |
return 0; |
2031 |
tmp = uint64_to_float32(1ULL << 32, &env->spe_status); |
2032 |
u.f = float32_mul(u.f, tmp, &env->spe_status); |
2033 |
|
2034 |
return float32_to_uint32(u.f, &env->spe_status);
|
2035 |
} |
2036 |
|
2037 |
#define HELPER_SPE_SINGLE_CONV(name) \
|
2038 |
uint32_t helper_e##name (uint32_t val) \ |
2039 |
{ \ |
2040 |
return e##name(val); \ |
2041 |
} |
2042 |
/* efscfsi */
|
2043 |
HELPER_SPE_SINGLE_CONV(fscfsi); |
2044 |
/* efscfui */
|
2045 |
HELPER_SPE_SINGLE_CONV(fscfui); |
2046 |
/* efscfuf */
|
2047 |
HELPER_SPE_SINGLE_CONV(fscfuf); |
2048 |
/* efscfsf */
|
2049 |
HELPER_SPE_SINGLE_CONV(fscfsf); |
2050 |
/* efsctsi */
|
2051 |
HELPER_SPE_SINGLE_CONV(fsctsi); |
2052 |
/* efsctui */
|
2053 |
HELPER_SPE_SINGLE_CONV(fsctui); |
2054 |
/* efsctsiz */
|
2055 |
HELPER_SPE_SINGLE_CONV(fsctsiz); |
2056 |
/* efsctuiz */
|
2057 |
HELPER_SPE_SINGLE_CONV(fsctuiz); |
2058 |
/* efsctsf */
|
2059 |
HELPER_SPE_SINGLE_CONV(fsctsf); |
2060 |
/* efsctuf */
|
2061 |
HELPER_SPE_SINGLE_CONV(fsctuf); |
2062 |
|
2063 |
#define HELPER_SPE_VECTOR_CONV(name) \
|
2064 |
uint64_t helper_ev##name (uint64_t val) \ |
2065 |
{ \ |
2066 |
return ((uint64_t)e##name(val >> 32) << 32) | \ |
2067 |
(uint64_t)e##name(val); \ |
2068 |
} |
2069 |
/* evfscfsi */
|
2070 |
HELPER_SPE_VECTOR_CONV(fscfsi); |
2071 |
/* evfscfui */
|
2072 |
HELPER_SPE_VECTOR_CONV(fscfui); |
2073 |
/* evfscfuf */
|
2074 |
HELPER_SPE_VECTOR_CONV(fscfuf); |
2075 |
/* evfscfsf */
|
2076 |
HELPER_SPE_VECTOR_CONV(fscfsf); |
2077 |
/* evfsctsi */
|
2078 |
HELPER_SPE_VECTOR_CONV(fsctsi); |
2079 |
/* evfsctui */
|
2080 |
HELPER_SPE_VECTOR_CONV(fsctui); |
2081 |
/* evfsctsiz */
|
2082 |
HELPER_SPE_VECTOR_CONV(fsctsiz); |
2083 |
/* evfsctuiz */
|
2084 |
HELPER_SPE_VECTOR_CONV(fsctuiz); |
2085 |
/* evfsctsf */
|
2086 |
HELPER_SPE_VECTOR_CONV(fsctsf); |
2087 |
/* evfsctuf */
|
2088 |
HELPER_SPE_VECTOR_CONV(fsctuf); |
2089 |
|
2090 |
/* Single-precision floating-point arithmetic */
|
2091 |
static always_inline uint32_t efsadd (uint32_t op1, uint32_t op2)
|
2092 |
{ |
2093 |
CPU_FloatU u1, u2; |
2094 |
u1.l = op1; |
2095 |
u2.l = op2; |
2096 |
u1.f = float32_add(u1.f, u2.f, &env->spe_status); |
2097 |
return u1.l;
|
2098 |
} |
2099 |
|
2100 |
static always_inline uint32_t efssub (uint32_t op1, uint32_t op2)
|
2101 |
{ |
2102 |
CPU_FloatU u1, u2; |
2103 |
u1.l = op1; |
2104 |
u2.l = op2; |
2105 |
u1.f = float32_sub(u1.f, u2.f, &env->spe_status); |
2106 |
return u1.l;
|
2107 |
} |
2108 |
|
2109 |
static always_inline uint32_t efsmul (uint32_t op1, uint32_t op2)
|
2110 |
{ |
2111 |
CPU_FloatU u1, u2; |
2112 |
u1.l = op1; |
2113 |
u2.l = op2; |
2114 |
u1.f = float32_mul(u1.f, u2.f, &env->spe_status); |
2115 |
return u1.l;
|
2116 |
} |
2117 |
|
2118 |
static always_inline uint32_t efsdiv (uint32_t op1, uint32_t op2)
|
2119 |
{ |
2120 |
CPU_FloatU u1, u2; |
2121 |
u1.l = op1; |
2122 |
u2.l = op2; |
2123 |
u1.f = float32_div(u1.f, u2.f, &env->spe_status); |
2124 |
return u1.l;
|
2125 |
} |
2126 |
|
2127 |
#define HELPER_SPE_SINGLE_ARITH(name) \
|
2128 |
uint32_t helper_e##name (uint32_t op1, uint32_t op2) \ |
2129 |
{ \ |
2130 |
return e##name(op1, op2); \ |
2131 |
} |
2132 |
/* efsadd */
|
2133 |
HELPER_SPE_SINGLE_ARITH(fsadd); |
2134 |
/* efssub */
|
2135 |
HELPER_SPE_SINGLE_ARITH(fssub); |
2136 |
/* efsmul */
|
2137 |
HELPER_SPE_SINGLE_ARITH(fsmul); |
2138 |
/* efsdiv */
|
2139 |
HELPER_SPE_SINGLE_ARITH(fsdiv); |
2140 |
|
2141 |
#define HELPER_SPE_VECTOR_ARITH(name) \
|
2142 |
uint64_t helper_ev##name (uint64_t op1, uint64_t op2) \ |
2143 |
{ \ |
2144 |
return ((uint64_t)e##name(op1 >> 32, op2 >> 32) << 32) | \ |
2145 |
(uint64_t)e##name(op1, op2); \ |
2146 |
} |
2147 |
/* evfsadd */
|
2148 |
HELPER_SPE_VECTOR_ARITH(fsadd); |
2149 |
/* evfssub */
|
2150 |
HELPER_SPE_VECTOR_ARITH(fssub); |
2151 |
/* evfsmul */
|
2152 |
HELPER_SPE_VECTOR_ARITH(fsmul); |
2153 |
/* evfsdiv */
|
2154 |
HELPER_SPE_VECTOR_ARITH(fsdiv); |
2155 |
|
2156 |
/* Single-precision floating-point comparisons */
|
2157 |
static always_inline uint32_t efststlt (uint32_t op1, uint32_t op2)
|
2158 |
{ |
2159 |
CPU_FloatU u1, u2; |
2160 |
u1.l = op1; |
2161 |
u2.l = op2; |
2162 |
return float32_lt(u1.f, u2.f, &env->spe_status) ? 4 : 0; |
2163 |
} |
2164 |
|
2165 |
static always_inline uint32_t efststgt (uint32_t op1, uint32_t op2)
|
2166 |
{ |
2167 |
CPU_FloatU u1, u2; |
2168 |
u1.l = op1; |
2169 |
u2.l = op2; |
2170 |
return float32_le(u1.f, u2.f, &env->spe_status) ? 0 : 4; |
2171 |
} |
2172 |
|
2173 |
static always_inline uint32_t efststeq (uint32_t op1, uint32_t op2)
|
2174 |
{ |
2175 |
CPU_FloatU u1, u2; |
2176 |
u1.l = op1; |
2177 |
u2.l = op2; |
2178 |
return float32_eq(u1.f, u2.f, &env->spe_status) ? 4 : 0; |
2179 |
} |
2180 |
|
2181 |
static always_inline uint32_t efscmplt (uint32_t op1, uint32_t op2)
|
2182 |
{ |
2183 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
2184 |
return efststlt(op1, op2);
|
2185 |
} |
2186 |
|
2187 |
static always_inline uint32_t efscmpgt (uint32_t op1, uint32_t op2)
|
2188 |
{ |
2189 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
2190 |
return efststgt(op1, op2);
|
2191 |
} |
2192 |
|
2193 |
static always_inline uint32_t efscmpeq (uint32_t op1, uint32_t op2)
|
2194 |
{ |
2195 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
2196 |
return efststeq(op1, op2);
|
2197 |
} |
2198 |
|
2199 |
#define HELPER_SINGLE_SPE_CMP(name) \
|
2200 |
uint32_t helper_e##name (uint32_t op1, uint32_t op2) \ |
2201 |
{ \ |
2202 |
return e##name(op1, op2) << 2; \ |
2203 |
} |
2204 |
/* efststlt */
|
2205 |
HELPER_SINGLE_SPE_CMP(fststlt); |
2206 |
/* efststgt */
|
2207 |
HELPER_SINGLE_SPE_CMP(fststgt); |
2208 |
/* efststeq */
|
2209 |
HELPER_SINGLE_SPE_CMP(fststeq); |
2210 |
/* efscmplt */
|
2211 |
HELPER_SINGLE_SPE_CMP(fscmplt); |
2212 |
/* efscmpgt */
|
2213 |
HELPER_SINGLE_SPE_CMP(fscmpgt); |
2214 |
/* efscmpeq */
|
2215 |
HELPER_SINGLE_SPE_CMP(fscmpeq); |
2216 |
|
2217 |
static always_inline uint32_t evcmp_merge (int t0, int t1) |
2218 |
{ |
2219 |
return (t0 << 3) | (t1 << 2) | ((t0 | t1) << 1) | (t0 & t1); |
2220 |
} |
2221 |
|
2222 |
#define HELPER_VECTOR_SPE_CMP(name) \
|
2223 |
uint32_t helper_ev##name (uint64_t op1, uint64_t op2) \ |
2224 |
{ \ |
2225 |
return evcmp_merge(e##name(op1 >> 32, op2 >> 32), e##name(op1, op2)); \ |
2226 |
} |
2227 |
/* evfststlt */
|
2228 |
HELPER_VECTOR_SPE_CMP(fststlt); |
2229 |
/* evfststgt */
|
2230 |
HELPER_VECTOR_SPE_CMP(fststgt); |
2231 |
/* evfststeq */
|
2232 |
HELPER_VECTOR_SPE_CMP(fststeq); |
2233 |
/* evfscmplt */
|
2234 |
HELPER_VECTOR_SPE_CMP(fscmplt); |
2235 |
/* evfscmpgt */
|
2236 |
HELPER_VECTOR_SPE_CMP(fscmpgt); |
2237 |
/* evfscmpeq */
|
2238 |
HELPER_VECTOR_SPE_CMP(fscmpeq); |
2239 |
|
2240 |
/* Double-precision floating-point conversion */
|
2241 |
uint64_t helper_efdcfsi (uint32_t val) |
2242 |
{ |
2243 |
CPU_DoubleU u; |
2244 |
|
2245 |
u.d = int32_to_float64(val, &env->spe_status); |
2246 |
|
2247 |
return u.ll;
|
2248 |
} |
2249 |
|
2250 |
uint64_t helper_efdcfsid (uint64_t val) |
2251 |
{ |
2252 |
CPU_DoubleU u; |
2253 |
|
2254 |
u.d = int64_to_float64(val, &env->spe_status); |
2255 |
|
2256 |
return u.ll;
|
2257 |
} |
2258 |
|
2259 |
uint64_t helper_efdcfui (uint32_t val) |
2260 |
{ |
2261 |
CPU_DoubleU u; |
2262 |
|
2263 |
u.d = uint32_to_float64(val, &env->spe_status); |
2264 |
|
2265 |
return u.ll;
|
2266 |
} |
2267 |
|
2268 |
uint64_t helper_efdcfuid (uint64_t val) |
2269 |
{ |
2270 |
CPU_DoubleU u; |
2271 |
|
2272 |
u.d = uint64_to_float64(val, &env->spe_status); |
2273 |
|
2274 |
return u.ll;
|
2275 |
} |
2276 |
|
2277 |
uint32_t helper_efdctsi (uint64_t val) |
2278 |
{ |
2279 |
CPU_DoubleU u; |
2280 |
|
2281 |
u.ll = val; |
2282 |
/* NaN are not treated the same way IEEE 754 does */
|
2283 |
if (unlikely(isnan(u.d)))
|
2284 |
return 0; |
2285 |
|
2286 |
return float64_to_int32(u.d, &env->spe_status);
|
2287 |
} |
2288 |
|
2289 |
uint32_t helper_efdctui (uint64_t val) |
2290 |
{ |
2291 |
CPU_DoubleU u; |
2292 |
|
2293 |
u.ll = val; |
2294 |
/* NaN are not treated the same way IEEE 754 does */
|
2295 |
if (unlikely(isnan(u.d)))
|
2296 |
return 0; |
2297 |
|
2298 |
return float64_to_uint32(u.d, &env->spe_status);
|
2299 |
} |
2300 |
|
2301 |
uint32_t helper_efdctsiz (uint64_t val) |
2302 |
{ |
2303 |
CPU_DoubleU u; |
2304 |
|
2305 |
u.ll = val; |
2306 |
/* NaN are not treated the same way IEEE 754 does */
|
2307 |
if (unlikely(isnan(u.d)))
|
2308 |
return 0; |
2309 |
|
2310 |
return float64_to_int32_round_to_zero(u.d, &env->spe_status);
|
2311 |
} |
2312 |
|
2313 |
uint64_t helper_efdctsidz (uint64_t val) |
2314 |
{ |
2315 |
CPU_DoubleU u; |
2316 |
|
2317 |
u.ll = val; |
2318 |
/* NaN are not treated the same way IEEE 754 does */
|
2319 |
if (unlikely(isnan(u.d)))
|
2320 |
return 0; |
2321 |
|
2322 |
return float64_to_int64_round_to_zero(u.d, &env->spe_status);
|
2323 |
} |
2324 |
|
2325 |
uint32_t helper_efdctuiz (uint64_t val) |
2326 |
{ |
2327 |
CPU_DoubleU u; |
2328 |
|
2329 |
u.ll = val; |
2330 |
/* NaN are not treated the same way IEEE 754 does */
|
2331 |
if (unlikely(isnan(u.d)))
|
2332 |
return 0; |
2333 |
|
2334 |
return float64_to_uint32_round_to_zero(u.d, &env->spe_status);
|
2335 |
} |
2336 |
|
2337 |
uint64_t helper_efdctuidz (uint64_t val) |
2338 |
{ |
2339 |
CPU_DoubleU u; |
2340 |
|
2341 |
u.ll = val; |
2342 |
/* NaN are not treated the same way IEEE 754 does */
|
2343 |
if (unlikely(isnan(u.d)))
|
2344 |
return 0; |
2345 |
|
2346 |
return float64_to_uint64_round_to_zero(u.d, &env->spe_status);
|
2347 |
} |
2348 |
|
2349 |
uint64_t helper_efdcfsf (uint32_t val) |
2350 |
{ |
2351 |
CPU_DoubleU u; |
2352 |
float64 tmp; |
2353 |
|
2354 |
u.d = int32_to_float64(val, &env->spe_status); |
2355 |
tmp = int64_to_float64(1ULL << 32, &env->spe_status); |
2356 |
u.d = float64_div(u.d, tmp, &env->spe_status); |
2357 |
|
2358 |
return u.ll;
|
2359 |
} |
2360 |
|
2361 |
uint64_t helper_efdcfuf (uint32_t val) |
2362 |
{ |
2363 |
CPU_DoubleU u; |
2364 |
float64 tmp; |
2365 |
|
2366 |
u.d = uint32_to_float64(val, &env->spe_status); |
2367 |
tmp = int64_to_float64(1ULL << 32, &env->spe_status); |
2368 |
u.d = float64_div(u.d, tmp, &env->spe_status); |
2369 |
|
2370 |
return u.ll;
|
2371 |
} |
2372 |
|
2373 |
uint32_t helper_efdctsf (uint64_t val) |
2374 |
{ |
2375 |
CPU_DoubleU u; |
2376 |
float64 tmp; |
2377 |
|
2378 |
u.ll = val; |
2379 |
/* NaN are not treated the same way IEEE 754 does */
|
2380 |
if (unlikely(isnan(u.d)))
|
2381 |
return 0; |
2382 |
tmp = uint64_to_float64(1ULL << 32, &env->spe_status); |
2383 |
u.d = float64_mul(u.d, tmp, &env->spe_status); |
2384 |
|
2385 |
return float64_to_int32(u.d, &env->spe_status);
|
2386 |
} |
2387 |
|
2388 |
uint32_t helper_efdctuf (uint64_t val) |
2389 |
{ |
2390 |
CPU_DoubleU u; |
2391 |
float64 tmp; |
2392 |
|
2393 |
u.ll = val; |
2394 |
/* NaN are not treated the same way IEEE 754 does */
|
2395 |
if (unlikely(isnan(u.d)))
|
2396 |
return 0; |
2397 |
tmp = uint64_to_float64(1ULL << 32, &env->spe_status); |
2398 |
u.d = float64_mul(u.d, tmp, &env->spe_status); |
2399 |
|
2400 |
return float64_to_uint32(u.d, &env->spe_status);
|
2401 |
} |
2402 |
|
2403 |
uint32_t helper_efscfd (uint64_t val) |
2404 |
{ |
2405 |
CPU_DoubleU u1; |
2406 |
CPU_FloatU u2; |
2407 |
|
2408 |
u1.ll = val; |
2409 |
u2.f = float64_to_float32(u1.d, &env->spe_status); |
2410 |
|
2411 |
return u2.l;
|
2412 |
} |
2413 |
|
2414 |
uint64_t helper_efdcfs (uint32_t val) |
2415 |
{ |
2416 |
CPU_DoubleU u2; |
2417 |
CPU_FloatU u1; |
2418 |
|
2419 |
u1.l = val; |
2420 |
u2.d = float32_to_float64(u1.f, &env->spe_status); |
2421 |
|
2422 |
return u2.ll;
|
2423 |
} |
2424 |
|
2425 |
/* Double precision fixed-point arithmetic */
|
2426 |
uint64_t helper_efdadd (uint64_t op1, uint64_t op2) |
2427 |
{ |
2428 |
CPU_DoubleU u1, u2; |
2429 |
u1.ll = op1; |
2430 |
u2.ll = op2; |
2431 |
u1.d = float64_add(u1.d, u2.d, &env->spe_status); |
2432 |
return u1.ll;
|
2433 |
} |
2434 |
|
2435 |
uint64_t helper_efdsub (uint64_t op1, uint64_t op2) |
2436 |
{ |
2437 |
CPU_DoubleU u1, u2; |
2438 |
u1.ll = op1; |
2439 |
u2.ll = op2; |
2440 |
u1.d = float64_sub(u1.d, u2.d, &env->spe_status); |
2441 |
return u1.ll;
|
2442 |
} |
2443 |
|
2444 |
uint64_t helper_efdmul (uint64_t op1, uint64_t op2) |
2445 |
{ |
2446 |
CPU_DoubleU u1, u2; |
2447 |
u1.ll = op1; |
2448 |
u2.ll = op2; |
2449 |
u1.d = float64_mul(u1.d, u2.d, &env->spe_status); |
2450 |
return u1.ll;
|
2451 |
} |
2452 |
|
2453 |
uint64_t helper_efddiv (uint64_t op1, uint64_t op2) |
2454 |
{ |
2455 |
CPU_DoubleU u1, u2; |
2456 |
u1.ll = op1; |
2457 |
u2.ll = op2; |
2458 |
u1.d = float64_div(u1.d, u2.d, &env->spe_status); |
2459 |
return u1.ll;
|
2460 |
} |
2461 |
|
2462 |
/* Double precision floating point helpers */
|
2463 |
uint32_t helper_efdtstlt (uint64_t op1, uint64_t op2) |
2464 |
{ |
2465 |
CPU_DoubleU u1, u2; |
2466 |
u1.ll = op1; |
2467 |
u2.ll = op2; |
2468 |
return float64_lt(u1.d, u2.d, &env->spe_status) ? 4 : 0; |
2469 |
} |
2470 |
|
2471 |
uint32_t helper_efdtstgt (uint64_t op1, uint64_t op2) |
2472 |
{ |
2473 |
CPU_DoubleU u1, u2; |
2474 |
u1.ll = op1; |
2475 |
u2.ll = op2; |
2476 |
return float64_le(u1.d, u2.d, &env->spe_status) ? 0 : 4; |
2477 |
} |
2478 |
|
2479 |
uint32_t helper_efdtsteq (uint64_t op1, uint64_t op2) |
2480 |
{ |
2481 |
CPU_DoubleU u1, u2; |
2482 |
u1.ll = op1; |
2483 |
u2.ll = op2; |
2484 |
return float64_eq(u1.d, u2.d, &env->spe_status) ? 4 : 0; |
2485 |
} |
2486 |
|
2487 |
uint32_t helper_efdcmplt (uint64_t op1, uint64_t op2) |
2488 |
{ |
2489 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
2490 |
return helper_efdtstlt(op1, op2);
|
2491 |
} |
2492 |
|
2493 |
uint32_t helper_efdcmpgt (uint64_t op1, uint64_t op2) |
2494 |
{ |
2495 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
2496 |
return helper_efdtstgt(op1, op2);
|
2497 |
} |
2498 |
|
2499 |
uint32_t helper_efdcmpeq (uint64_t op1, uint64_t op2) |
2500 |
{ |
2501 |
/* XXX: TODO: test special values (NaN, infinites, ...) */
|
2502 |
return helper_efdtsteq(op1, op2);
|
2503 |
} |
2504 |
|
2505 |
/*****************************************************************************/
|
2506 |
/* Softmmu support */
|
2507 |
#if !defined (CONFIG_USER_ONLY)
|
2508 |
|
2509 |
#define MMUSUFFIX _mmu
|
2510 |
|
2511 |
#define SHIFT 0 |
2512 |
#include "softmmu_template.h" |
2513 |
|
2514 |
#define SHIFT 1 |
2515 |
#include "softmmu_template.h" |
2516 |
|
2517 |
#define SHIFT 2 |
2518 |
#include "softmmu_template.h" |
2519 |
|
2520 |
#define SHIFT 3 |
2521 |
#include "softmmu_template.h" |
2522 |
|
2523 |
/* try to fill the TLB and return an exception if error. If retaddr is
|
2524 |
NULL, it means that the function was called in C code (i.e. not
|
2525 |
from generated code or from helper.c) */
|
2526 |
/* XXX: fix it to restore all registers */
|
2527 |
void tlb_fill (target_ulong addr, int is_write, int mmu_idx, void *retaddr) |
2528 |
{ |
2529 |
TranslationBlock *tb; |
2530 |
CPUState *saved_env; |
2531 |
unsigned long pc; |
2532 |
int ret;
|
2533 |
|
2534 |
/* XXX: hack to restore env in all cases, even if not called from
|
2535 |
generated code */
|
2536 |
saved_env = env; |
2537 |
env = cpu_single_env; |
2538 |
ret = cpu_ppc_handle_mmu_fault(env, addr, is_write, mmu_idx, 1);
|
2539 |
if (unlikely(ret != 0)) { |
2540 |
if (likely(retaddr)) {
|
2541 |
/* now we have a real cpu fault */
|
2542 |
pc = (unsigned long)retaddr; |
2543 |
tb = tb_find_pc(pc); |
2544 |
if (likely(tb)) {
|
2545 |
/* the PC is inside the translated code. It means that we have
|
2546 |
a virtual CPU fault */
|
2547 |
cpu_restore_state(tb, env, pc, NULL);
|
2548 |
} |
2549 |
} |
2550 |
raise_exception_err(env, env->exception_index, env->error_code); |
2551 |
} |
2552 |
env = saved_env; |
2553 |
} |
2554 |
|
2555 |
/* Segment registers load and store */
|
2556 |
target_ulong helper_load_sr (target_ulong sr_num) |
2557 |
{ |
2558 |
return env->sr[sr_num];
|
2559 |
} |
2560 |
|
2561 |
void helper_store_sr (target_ulong sr_num, target_ulong val)
|
2562 |
{ |
2563 |
do_store_sr(env, sr_num, val); |
2564 |
} |
2565 |
|
2566 |
/* SLB management */
|
2567 |
#if defined(TARGET_PPC64)
|
2568 |
target_ulong helper_load_slb (target_ulong slb_nr) |
2569 |
{ |
2570 |
return ppc_load_slb(env, slb_nr);
|
2571 |
} |
2572 |
|
2573 |
void helper_store_slb (target_ulong slb_nr, target_ulong rs)
|
2574 |
{ |
2575 |
ppc_store_slb(env, slb_nr, rs); |
2576 |
} |
2577 |
|
2578 |
void helper_slbia (void) |
2579 |
{ |
2580 |
ppc_slb_invalidate_all(env); |
2581 |
} |
2582 |
|
2583 |
void helper_slbie (target_ulong addr)
|
2584 |
{ |
2585 |
ppc_slb_invalidate_one(env, addr); |
2586 |
} |
2587 |
|
2588 |
#endif /* defined(TARGET_PPC64) */ |
2589 |
|
2590 |
/* TLB management */
|
2591 |
void helper_tlbia (void) |
2592 |
{ |
2593 |
ppc_tlb_invalidate_all(env); |
2594 |
} |
2595 |
|
2596 |
void helper_tlbie (target_ulong addr)
|
2597 |
{ |
2598 |
ppc_tlb_invalidate_one(env, addr); |
2599 |
} |
2600 |
|
2601 |
/* Software driven TLBs management */
|
2602 |
/* PowerPC 602/603 software TLB load instructions helpers */
|
2603 |
static void do_6xx_tlb (target_ulong new_EPN, int is_code) |
2604 |
{ |
2605 |
target_ulong RPN, CMP, EPN; |
2606 |
int way;
|
2607 |
|
2608 |
RPN = env->spr[SPR_RPA]; |
2609 |
if (is_code) {
|
2610 |
CMP = env->spr[SPR_ICMP]; |
2611 |
EPN = env->spr[SPR_IMISS]; |
2612 |
} else {
|
2613 |
CMP = env->spr[SPR_DCMP]; |
2614 |
EPN = env->spr[SPR_DMISS]; |
2615 |
} |
2616 |
way = (env->spr[SPR_SRR1] >> 17) & 1; |
2617 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2618 |
if (loglevel != 0) { |
2619 |
fprintf(logfile, "%s: EPN " TDX " " ADDRX " PTE0 " ADDRX |
2620 |
" PTE1 " ADDRX " way %d\n", |
2621 |
__func__, T0, EPN, CMP, RPN, way); |
2622 |
} |
2623 |
#endif
|
2624 |
/* Store this TLB */
|
2625 |
ppc6xx_tlb_store(env, (uint32_t)(new_EPN & TARGET_PAGE_MASK), |
2626 |
way, is_code, CMP, RPN); |
2627 |
} |
2628 |
|
2629 |
void helper_6xx_tlbd (target_ulong EPN)
|
2630 |
{ |
2631 |
do_6xx_tlb(EPN, 0);
|
2632 |
} |
2633 |
|
2634 |
void helper_6xx_tlbi (target_ulong EPN)
|
2635 |
{ |
2636 |
do_6xx_tlb(EPN, 1);
|
2637 |
} |
2638 |
|
2639 |
/* PowerPC 74xx software TLB load instructions helpers */
|
2640 |
static void do_74xx_tlb (target_ulong new_EPN, int is_code) |
2641 |
{ |
2642 |
target_ulong RPN, CMP, EPN; |
2643 |
int way;
|
2644 |
|
2645 |
RPN = env->spr[SPR_PTELO]; |
2646 |
CMP = env->spr[SPR_PTEHI]; |
2647 |
EPN = env->spr[SPR_TLBMISS] & ~0x3;
|
2648 |
way = env->spr[SPR_TLBMISS] & 0x3;
|
2649 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2650 |
if (loglevel != 0) { |
2651 |
fprintf(logfile, "%s: EPN " TDX " " ADDRX " PTE0 " ADDRX |
2652 |
" PTE1 " ADDRX " way %d\n", |
2653 |
__func__, T0, EPN, CMP, RPN, way); |
2654 |
} |
2655 |
#endif
|
2656 |
/* Store this TLB */
|
2657 |
ppc6xx_tlb_store(env, (uint32_t)(new_EPN & TARGET_PAGE_MASK), |
2658 |
way, is_code, CMP, RPN); |
2659 |
} |
2660 |
|
2661 |
void helper_74xx_tlbd (target_ulong EPN)
|
2662 |
{ |
2663 |
do_74xx_tlb(EPN, 0);
|
2664 |
} |
2665 |
|
2666 |
void helper_74xx_tlbi (target_ulong EPN)
|
2667 |
{ |
2668 |
do_74xx_tlb(EPN, 1);
|
2669 |
} |
2670 |
|
2671 |
static always_inline target_ulong booke_tlb_to_page_size (int size) |
2672 |
{ |
2673 |
return 1024 << (2 * size); |
2674 |
} |
2675 |
|
2676 |
static always_inline int booke_page_size_to_tlb (target_ulong page_size) |
2677 |
{ |
2678 |
int size;
|
2679 |
|
2680 |
switch (page_size) {
|
2681 |
case 0x00000400UL: |
2682 |
size = 0x0;
|
2683 |
break;
|
2684 |
case 0x00001000UL: |
2685 |
size = 0x1;
|
2686 |
break;
|
2687 |
case 0x00004000UL: |
2688 |
size = 0x2;
|
2689 |
break;
|
2690 |
case 0x00010000UL: |
2691 |
size = 0x3;
|
2692 |
break;
|
2693 |
case 0x00040000UL: |
2694 |
size = 0x4;
|
2695 |
break;
|
2696 |
case 0x00100000UL: |
2697 |
size = 0x5;
|
2698 |
break;
|
2699 |
case 0x00400000UL: |
2700 |
size = 0x6;
|
2701 |
break;
|
2702 |
case 0x01000000UL: |
2703 |
size = 0x7;
|
2704 |
break;
|
2705 |
case 0x04000000UL: |
2706 |
size = 0x8;
|
2707 |
break;
|
2708 |
case 0x10000000UL: |
2709 |
size = 0x9;
|
2710 |
break;
|
2711 |
case 0x40000000UL: |
2712 |
size = 0xA;
|
2713 |
break;
|
2714 |
#if defined (TARGET_PPC64)
|
2715 |
case 0x000100000000ULL: |
2716 |
size = 0xB;
|
2717 |
break;
|
2718 |
case 0x000400000000ULL: |
2719 |
size = 0xC;
|
2720 |
break;
|
2721 |
case 0x001000000000ULL: |
2722 |
size = 0xD;
|
2723 |
break;
|
2724 |
case 0x004000000000ULL: |
2725 |
size = 0xE;
|
2726 |
break;
|
2727 |
case 0x010000000000ULL: |
2728 |
size = 0xF;
|
2729 |
break;
|
2730 |
#endif
|
2731 |
default:
|
2732 |
size = -1;
|
2733 |
break;
|
2734 |
} |
2735 |
|
2736 |
return size;
|
2737 |
} |
2738 |
|
2739 |
/* Helpers for 4xx TLB management */
|
2740 |
target_ulong helper_4xx_tlbre_lo (target_ulong entry) |
2741 |
{ |
2742 |
ppcemb_tlb_t *tlb; |
2743 |
target_ulong ret; |
2744 |
int size;
|
2745 |
|
2746 |
entry &= 0x3F;
|
2747 |
tlb = &env->tlb[entry].tlbe; |
2748 |
ret = tlb->EPN; |
2749 |
if (tlb->prot & PAGE_VALID)
|
2750 |
ret |= 0x400;
|
2751 |
size = booke_page_size_to_tlb(tlb->size); |
2752 |
if (size < 0 || size > 0x7) |
2753 |
size = 1;
|
2754 |
ret |= size << 7;
|
2755 |
env->spr[SPR_40x_PID] = tlb->PID; |
2756 |
return ret;
|
2757 |
} |
2758 |
|
2759 |
target_ulong helper_4xx_tlbre_hi (target_ulong entry) |
2760 |
{ |
2761 |
ppcemb_tlb_t *tlb; |
2762 |
target_ulong ret; |
2763 |
|
2764 |
entry &= 0x3F;
|
2765 |
tlb = &env->tlb[entry].tlbe; |
2766 |
ret = tlb->RPN; |
2767 |
if (tlb->prot & PAGE_EXEC)
|
2768 |
ret |= 0x200;
|
2769 |
if (tlb->prot & PAGE_WRITE)
|
2770 |
ret |= 0x100;
|
2771 |
return ret;
|
2772 |
} |
2773 |
|
2774 |
void helper_4xx_tlbwe_hi (target_ulong entry, target_ulong val)
|
2775 |
{ |
2776 |
ppcemb_tlb_t *tlb; |
2777 |
target_ulong page, end; |
2778 |
|
2779 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2780 |
if (loglevel != 0) { |
2781 |
fprintf(logfile, "%s entry " TDX " val " TDX "\n", __func__, entry, val); |
2782 |
} |
2783 |
#endif
|
2784 |
entry &= 0x3F;
|
2785 |
tlb = &env->tlb[entry].tlbe; |
2786 |
/* Invalidate previous TLB (if it's valid) */
|
2787 |
if (tlb->prot & PAGE_VALID) {
|
2788 |
end = tlb->EPN + tlb->size; |
2789 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2790 |
if (loglevel != 0) { |
2791 |
fprintf(logfile, "%s: invalidate old TLB %d start " ADDRX
|
2792 |
" end " ADDRX "\n", __func__, (int)entry, tlb->EPN, end); |
2793 |
} |
2794 |
#endif
|
2795 |
for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE)
|
2796 |
tlb_flush_page(env, page); |
2797 |
} |
2798 |
tlb->size = booke_tlb_to_page_size((val >> 7) & 0x7); |
2799 |
/* We cannot handle TLB size < TARGET_PAGE_SIZE.
|
2800 |
* If this ever occurs, one should use the ppcemb target instead
|
2801 |
* of the ppc or ppc64 one
|
2802 |
*/
|
2803 |
if ((val & 0x40) && tlb->size < TARGET_PAGE_SIZE) { |
2804 |
cpu_abort(env, "TLB size " TARGET_FMT_lu " < %u " |
2805 |
"are not supported (%d)\n",
|
2806 |
tlb->size, TARGET_PAGE_SIZE, (int)((val >> 7) & 0x7)); |
2807 |
} |
2808 |
tlb->EPN = val & ~(tlb->size - 1);
|
2809 |
if (val & 0x40) |
2810 |
tlb->prot |= PAGE_VALID; |
2811 |
else
|
2812 |
tlb->prot &= ~PAGE_VALID; |
2813 |
if (val & 0x20) { |
2814 |
/* XXX: TO BE FIXED */
|
2815 |
cpu_abort(env, "Little-endian TLB entries are not supported by now\n");
|
2816 |
} |
2817 |
tlb->PID = env->spr[SPR_40x_PID]; /* PID */
|
2818 |
tlb->attr = val & 0xFF;
|
2819 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2820 |
if (loglevel != 0) { |
2821 |
fprintf(logfile, "%s: set up TLB %d RPN " PADDRX " EPN " ADDRX |
2822 |
" size " ADDRX " prot %c%c%c%c PID %d\n", __func__, |
2823 |
(int)T0, tlb->RPN, tlb->EPN, tlb->size,
|
2824 |
tlb->prot & PAGE_READ ? 'r' : '-', |
2825 |
tlb->prot & PAGE_WRITE ? 'w' : '-', |
2826 |
tlb->prot & PAGE_EXEC ? 'x' : '-', |
2827 |
tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID); |
2828 |
} |
2829 |
#endif
|
2830 |
/* Invalidate new TLB (if valid) */
|
2831 |
if (tlb->prot & PAGE_VALID) {
|
2832 |
end = tlb->EPN + tlb->size; |
2833 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2834 |
if (loglevel != 0) { |
2835 |
fprintf(logfile, "%s: invalidate TLB %d start " ADDRX
|
2836 |
" end " ADDRX "\n", __func__, (int)T0, tlb->EPN, end); |
2837 |
} |
2838 |
#endif
|
2839 |
for (page = tlb->EPN; page < end; page += TARGET_PAGE_SIZE)
|
2840 |
tlb_flush_page(env, page); |
2841 |
} |
2842 |
} |
2843 |
|
2844 |
void helper_4xx_tlbwe_lo (target_ulong entry, target_ulong val)
|
2845 |
{ |
2846 |
ppcemb_tlb_t *tlb; |
2847 |
|
2848 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2849 |
if (loglevel != 0) { |
2850 |
fprintf(logfile, "%s entry " TDX " val " TDX "\n", __func__, entry, val); |
2851 |
} |
2852 |
#endif
|
2853 |
entry &= 0x3F;
|
2854 |
tlb = &env->tlb[entry].tlbe; |
2855 |
tlb->RPN = val & 0xFFFFFC00;
|
2856 |
tlb->prot = PAGE_READ; |
2857 |
if (val & 0x200) |
2858 |
tlb->prot |= PAGE_EXEC; |
2859 |
if (val & 0x100) |
2860 |
tlb->prot |= PAGE_WRITE; |
2861 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2862 |
if (loglevel != 0) { |
2863 |
fprintf(logfile, "%s: set up TLB %d RPN " PADDRX " EPN " ADDRX |
2864 |
" size " ADDRX " prot %c%c%c%c PID %d\n", __func__, |
2865 |
(int)entry, tlb->RPN, tlb->EPN, tlb->size,
|
2866 |
tlb->prot & PAGE_READ ? 'r' : '-', |
2867 |
tlb->prot & PAGE_WRITE ? 'w' : '-', |
2868 |
tlb->prot & PAGE_EXEC ? 'x' : '-', |
2869 |
tlb->prot & PAGE_VALID ? 'v' : '-', (int)tlb->PID); |
2870 |
} |
2871 |
#endif
|
2872 |
} |
2873 |
|
2874 |
target_ulong helper_4xx_tlbsx (target_ulong address) |
2875 |
{ |
2876 |
return ppcemb_tlb_search(env, address, env->spr[SPR_40x_PID]);
|
2877 |
} |
2878 |
|
2879 |
/* PowerPC 440 TLB management */
|
2880 |
void helper_440_tlbwe (uint32_t word, target_ulong entry, target_ulong value)
|
2881 |
{ |
2882 |
ppcemb_tlb_t *tlb; |
2883 |
target_ulong EPN, RPN, size; |
2884 |
int do_flush_tlbs;
|
2885 |
|
2886 |
#if defined (DEBUG_SOFTWARE_TLB)
|
2887 |
if (loglevel != 0) { |
2888 |
fprintf(logfile, "%s word %d entry " TDX " value " TDX "\n", |
2889 |
__func__, word, entry, value); |
2890 |
} |
2891 |
#endif
|
2892 |
do_flush_tlbs = 0;
|
2893 |
entry &= 0x3F;
|
2894 |
tlb = &env->tlb[entry].tlbe; |
2895 |
switch (word) {
|
2896 |
default:
|
2897 |
/* Just here to please gcc */
|
2898 |
case 0: |
2899 |
EPN = value & 0xFFFFFC00;
|
2900 |
if ((tlb->prot & PAGE_VALID) && EPN != tlb->EPN)
|
2901 |
do_flush_tlbs = 1;
|
2902 |
tlb->EPN = EPN; |
2903 |
size = booke_tlb_to_page_size((value >> 4) & 0xF); |
2904 |
if ((tlb->prot & PAGE_VALID) && tlb->size < size)
|
2905 |
do_flush_tlbs = 1;
|
2906 |
tlb->size = size; |
2907 |
tlb->attr &= ~0x1;
|
2908 |
tlb->attr |= (value >> 8) & 1; |
2909 |
if (value & 0x200) { |
2910 |
tlb->prot |= PAGE_VALID; |
2911 |
} else {
|
2912 |
if (tlb->prot & PAGE_VALID) {
|
2913 |
tlb->prot &= ~PAGE_VALID; |
2914 |
do_flush_tlbs = 1;
|
2915 |
} |
2916 |
} |
2917 |
tlb->PID = env->spr[SPR_440_MMUCR] & 0x000000FF;
|
2918 |
if (do_flush_tlbs)
|
2919 |
tlb_flush(env, 1);
|
2920 |
break;
|
2921 |
case 1: |
2922 |
RPN = value & 0xFFFFFC0F;
|
2923 |
if ((tlb->prot & PAGE_VALID) && tlb->RPN != RPN)
|
2924 |
tlb_flush(env, 1);
|
2925 |
tlb->RPN = RPN; |
2926 |
break;
|
2927 |
case 2: |
2928 |
tlb->attr = (tlb->attr & 0x1) | (value & 0x0000FF00); |
2929 |
tlb->prot = tlb->prot & PAGE_VALID; |
2930 |
if (value & 0x1) |
2931 |
tlb->prot |= PAGE_READ << 4;
|
2932 |
if (value & 0x2) |
2933 |
tlb->prot |= PAGE_WRITE << 4;
|
2934 |
if (value & 0x4) |
2935 |
tlb->prot |= PAGE_EXEC << 4;
|
2936 |
if (value & 0x8) |
2937 |
tlb->prot |= PAGE_READ; |
2938 |
if (value & 0x10) |
2939 |
tlb->prot |= PAGE_WRITE; |
2940 |
if (value & 0x20) |
2941 |
tlb->prot |= PAGE_EXEC; |
2942 |
break;
|
2943 |
} |
2944 |
} |
2945 |
|
2946 |
target_ulong helper_440_tlbre (uint32_t word, target_ulong entry) |
2947 |
{ |
2948 |
ppcemb_tlb_t *tlb; |
2949 |
target_ulong ret; |
2950 |
int size;
|
2951 |
|
2952 |
entry &= 0x3F;
|
2953 |
tlb = &env->tlb[entry].tlbe; |
2954 |
switch (word) {
|
2955 |
default:
|
2956 |
/* Just here to please gcc */
|
2957 |
case 0: |
2958 |
ret = tlb->EPN; |
2959 |
size = booke_page_size_to_tlb(tlb->size); |
2960 |
if (size < 0 || size > 0xF) |
2961 |
size = 1;
|
2962 |
ret |= size << 4;
|
2963 |
if (tlb->attr & 0x1) |
2964 |
ret |= 0x100;
|
2965 |
if (tlb->prot & PAGE_VALID)
|
2966 |
ret |= 0x200;
|
2967 |
env->spr[SPR_440_MMUCR] &= ~0x000000FF;
|
2968 |
env->spr[SPR_440_MMUCR] |= tlb->PID; |
2969 |
break;
|
2970 |
case 1: |
2971 |
ret = tlb->RPN; |
2972 |
break;
|
2973 |
case 2: |
2974 |
ret = tlb->attr & ~0x1;
|
2975 |
if (tlb->prot & (PAGE_READ << 4)) |
2976 |
ret |= 0x1;
|
2977 |
if (tlb->prot & (PAGE_WRITE << 4)) |
2978 |
ret |= 0x2;
|
2979 |
if (tlb->prot & (PAGE_EXEC << 4)) |
2980 |
ret |= 0x4;
|
2981 |
if (tlb->prot & PAGE_READ)
|
2982 |
ret |= 0x8;
|
2983 |
if (tlb->prot & PAGE_WRITE)
|
2984 |
ret |= 0x10;
|
2985 |
if (tlb->prot & PAGE_EXEC)
|
2986 |
ret |= 0x20;
|
2987 |
break;
|
2988 |
} |
2989 |
return ret;
|
2990 |
} |
2991 |
|
2992 |
target_ulong helper_440_tlbsx (target_ulong address) |
2993 |
{ |
2994 |
return ppcemb_tlb_search(env, address, env->spr[SPR_440_MMUCR] & 0xFF); |
2995 |
} |
2996 |
|
2997 |
#endif /* !CONFIG_USER_ONLY */ |