root / target-mips / op_mem.c @ aa0bf00b
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/*
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* MIPS emulation memory micro-operations for qemu.
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*
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* Copyright (c) 2004-2005 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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/* "half" load and stores. We must do the memory access inline,
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or fault handling won't work. */
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#ifdef TARGET_WORDS_BIGENDIAN
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#define GET_LMASK(v) ((v) & 3) |
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#define GET_OFFSET(addr, offset) (addr + (offset))
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#else
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#define GET_LMASK(v) (((v) & 3) ^ 3) |
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#define GET_OFFSET(addr, offset) (addr - (offset))
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#endif
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void glue(op_lwl, MEMSUFFIX) (void) |
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{
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target_ulong tmp; |
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tmp = glue(ldub, MEMSUFFIX)(T0); |
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T1 = (T1 & 0x00FFFFFF) | (tmp << 24); |
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if (GET_LMASK(T0) <= 2) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, 1));
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T1 = (T1 & 0xFF00FFFF) | (tmp << 16); |
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} |
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if (GET_LMASK(T0) <= 1) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, 2));
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T1 = (T1 & 0xFFFF00FF) | (tmp << 8); |
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} |
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if (GET_LMASK(T0) == 0) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, 3));
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T1 = (T1 & 0xFFFFFF00) | tmp;
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} |
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T1 = (int32_t)T1; |
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FORCE_RET(); |
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} |
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void glue(op_lwr, MEMSUFFIX) (void) |
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{
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target_ulong tmp; |
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tmp = glue(ldub, MEMSUFFIX)(T0); |
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T1 = (T1 & 0xFFFFFF00) | tmp;
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if (GET_LMASK(T0) >= 1) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, -1));
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T1 = (T1 & 0xFFFF00FF) | (tmp << 8); |
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} |
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if (GET_LMASK(T0) >= 2) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, -2));
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T1 = (T1 & 0xFF00FFFF) | (tmp << 16); |
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} |
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if (GET_LMASK(T0) == 3) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, -3));
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T1 = (T1 & 0x00FFFFFF) | (tmp << 24); |
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} |
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T1 = (int32_t)T1; |
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FORCE_RET(); |
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} |
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void glue(op_swl, MEMSUFFIX) (void) |
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{
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glue(stb, MEMSUFFIX)(T0, (uint8_t)(T1 >> 24));
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if (GET_LMASK(T0) <= 2) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, 1), (uint8_t)(T1 >> 16)); |
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if (GET_LMASK(T0) <= 1) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, 2), (uint8_t)(T1 >> 8)); |
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if (GET_LMASK(T0) == 0) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, 3), (uint8_t)T1);
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FORCE_RET(); |
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} |
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void glue(op_swr, MEMSUFFIX) (void) |
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{
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glue(stb, MEMSUFFIX)(T0, (uint8_t)T1); |
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if (GET_LMASK(T0) >= 1) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, -1), (uint8_t)(T1 >> 8)); |
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if (GET_LMASK(T0) >= 2) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, -2), (uint8_t)(T1 >> 16)); |
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if (GET_LMASK(T0) == 3) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, -3), (uint8_t)(T1 >> 24)); |
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FORCE_RET(); |
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} |
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#if defined(TARGET_MIPS64)
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/* "half" load and stores. We must do the memory access inline,
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or fault handling won't work. */
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#ifdef TARGET_WORDS_BIGENDIAN
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#define GET_LMASK64(v) ((v) & 7) |
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#else
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#define GET_LMASK64(v) (((v) & 7) ^ 7) |
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#endif
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void glue(op_ldl, MEMSUFFIX) (void) |
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{
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uint64_t tmp; |
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tmp = glue(ldub, MEMSUFFIX)(T0); |
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T1 = (T1 & 0x00FFFFFFFFFFFFFFULL) | (tmp << 56); |
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if (GET_LMASK64(T0) <= 6) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, 1));
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T1 = (T1 & 0xFF00FFFFFFFFFFFFULL) | (tmp << 48); |
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} |
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if (GET_LMASK64(T0) <= 5) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, 2));
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T1 = (T1 & 0xFFFF00FFFFFFFFFFULL) | (tmp << 40); |
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} |
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if (GET_LMASK64(T0) <= 4) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, 3));
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T1 = (T1 & 0xFFFFFF00FFFFFFFFULL) | (tmp << 32); |
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} |
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if (GET_LMASK64(T0) <= 3) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, 4));
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T1 = (T1 & 0xFFFFFFFF00FFFFFFULL) | (tmp << 24); |
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} |
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if (GET_LMASK64(T0) <= 2) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, 5));
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T1 = (T1 & 0xFFFFFFFFFF00FFFFULL) | (tmp << 16); |
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} |
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if (GET_LMASK64(T0) <= 1) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, 6));
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T1 = (T1 & 0xFFFFFFFFFFFF00FFULL) | (tmp << 8); |
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} |
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if (GET_LMASK64(T0) == 0) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, 7));
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T1 = (T1 & 0xFFFFFFFFFFFFFF00ULL) | tmp;
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} |
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FORCE_RET(); |
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} |
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void glue(op_ldr, MEMSUFFIX) (void) |
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{
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uint64_t tmp; |
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tmp = glue(ldub, MEMSUFFIX)(T0); |
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T1 = (T1 & 0xFFFFFFFFFFFFFF00ULL) | tmp;
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if (GET_LMASK64(T0) >= 1) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, -1));
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T1 = (T1 & 0xFFFFFFFFFFFF00FFULL) | (tmp << 8); |
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} |
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if (GET_LMASK64(T0) >= 2) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, -2));
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T1 = (T1 & 0xFFFFFFFFFF00FFFFULL) | (tmp << 16); |
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} |
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if (GET_LMASK64(T0) >= 3) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, -3));
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T1 = (T1 & 0xFFFFFFFF00FFFFFFULL) | (tmp << 24); |
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} |
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if (GET_LMASK64(T0) >= 4) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, -4));
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T1 = (T1 & 0xFFFFFF00FFFFFFFFULL) | (tmp << 32); |
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} |
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if (GET_LMASK64(T0) >= 5) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, -5));
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T1 = (T1 & 0xFFFF00FFFFFFFFFFULL) | (tmp << 40); |
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} |
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if (GET_LMASK64(T0) >= 6) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, -6));
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T1 = (T1 & 0xFF00FFFFFFFFFFFFULL) | (tmp << 48); |
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} |
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if (GET_LMASK64(T0) == 7) { |
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tmp = glue(ldub, MEMSUFFIX)(GET_OFFSET(T0, -7));
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T1 = (T1 & 0x00FFFFFFFFFFFFFFULL) | (tmp << 56); |
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} |
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FORCE_RET(); |
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} |
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void glue(op_sdl, MEMSUFFIX) (void) |
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{
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glue(stb, MEMSUFFIX)(T0, (uint8_t)(T1 >> 56));
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if (GET_LMASK64(T0) <= 6) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, 1), (uint8_t)(T1 >> 48)); |
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if (GET_LMASK64(T0) <= 5) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, 2), (uint8_t)(T1 >> 40)); |
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if (GET_LMASK64(T0) <= 4) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, 3), (uint8_t)(T1 >> 32)); |
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if (GET_LMASK64(T0) <= 3) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, 4), (uint8_t)(T1 >> 24)); |
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if (GET_LMASK64(T0) <= 2) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, 5), (uint8_t)(T1 >> 16)); |
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if (GET_LMASK64(T0) <= 1) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, 6), (uint8_t)(T1 >> 8)); |
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if (GET_LMASK64(T0) <= 0) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, 7), (uint8_t)T1);
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FORCE_RET(); |
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} |
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void glue(op_sdr, MEMSUFFIX) (void) |
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{
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glue(stb, MEMSUFFIX)(T0, (uint8_t)T1); |
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if (GET_LMASK64(T0) >= 1) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, -1), (uint8_t)(T1 >> 8)); |
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if (GET_LMASK64(T0) >= 2) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, -2), (uint8_t)(T1 >> 16)); |
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if (GET_LMASK64(T0) >= 3) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, -3), (uint8_t)(T1 >> 24)); |
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if (GET_LMASK64(T0) >= 4) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, -4), (uint8_t)(T1 >> 32)); |
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if (GET_LMASK64(T0) >= 5) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, -5), (uint8_t)(T1 >> 40)); |
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if (GET_LMASK64(T0) >= 6) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, -6), (uint8_t)(T1 >> 48)); |
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if (GET_LMASK64(T0) == 7) |
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glue(stb, MEMSUFFIX)(GET_OFFSET(T0, -7), (uint8_t)(T1 >> 56)); |
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FORCE_RET(); |
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} |
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#endif /* TARGET_MIPS64 */ |
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void glue(op_luxc1, MEMSUFFIX) (void) |
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{
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DT0 = glue(ldq, MEMSUFFIX)(T0 & ~0x7);
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FORCE_RET(); |
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} |
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void glue(op_suxc1, MEMSUFFIX) (void) |
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{
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glue(stq, MEMSUFFIX)(T0 & ~0x7, DT0);
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FORCE_RET(); |
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} |