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  • Committer: Al Stone
  • Date: 2012-02-09 01:17:20 UTC
  • Revision ID: albert.stone@canonical.com-20120209011720-tztl7ik3qayz80p4
first commit to bzr for qemu

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/*
 
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 * Tiny Code Generator for QEMU
 
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 *
 
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 * Copyright (c) 2008 Fabrice Bellard
 
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 *
 
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 * Permission is hereby granted, free of charge, to any person obtaining a copy
 
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 * of this software and associated documentation files (the "Software"), to deal
 
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 * in the Software without restriction, including without limitation the rights
 
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 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 
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 * copies of the Software, and to permit persons to whom the Software is
 
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 * furnished to do so, subject to the following conditions:
 
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 *
 
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 * The above copyright notice and this permission notice shall be included in
 
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 * all copies or substantial portions of the Software.
 
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 *
 
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 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 
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 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 
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 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL
 
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 * THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 
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 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 
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 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
 
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 * THE SOFTWARE.
 
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 */
 
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#define TCG_TARGET_SPARC 1
 
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#define TCG_TARGET_WORDS_BIGENDIAN
 
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#define TCG_TARGET_NB_REGS 32
 
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typedef enum {
 
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    TCG_REG_G0 = 0,
 
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    TCG_REG_G1,
 
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    TCG_REG_G2,
 
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    TCG_REG_G3,
 
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    TCG_REG_G4,
 
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    TCG_REG_G5,
 
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    TCG_REG_G6,
 
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    TCG_REG_G7,
 
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    TCG_REG_O0,
 
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    TCG_REG_O1,
 
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    TCG_REG_O2,
 
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    TCG_REG_O3,
 
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    TCG_REG_O4,
 
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    TCG_REG_O5,
 
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    TCG_REG_O6,
 
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    TCG_REG_O7,
 
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    TCG_REG_L0,
 
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    TCG_REG_L1,
 
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    TCG_REG_L2,
 
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    TCG_REG_L3,
 
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    TCG_REG_L4,
 
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    TCG_REG_L5,
 
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    TCG_REG_L6,
 
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    TCG_REG_L7,
 
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    TCG_REG_I0,
 
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    TCG_REG_I1,
 
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    TCG_REG_I2,
 
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    TCG_REG_I3,
 
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    TCG_REG_I4,
 
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    TCG_REG_I5,
 
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    TCG_REG_I6,
 
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    TCG_REG_I7,
 
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} TCGReg;
 
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#define TCG_CT_CONST_S11 0x100
 
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#define TCG_CT_CONST_S13 0x200
 
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/* used for function call generation */
 
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#define TCG_REG_CALL_STACK TCG_REG_I6
 
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#ifdef __arch64__
 
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// Reserve space for AREG0
 
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#define TCG_TARGET_STACK_MINFRAME (176 + 4 * (int)sizeof(long) + \
 
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                                   TCG_STATIC_CALL_ARGS_SIZE)
 
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#define TCG_TARGET_CALL_STACK_OFFSET (2047 - 16)
 
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#define TCG_TARGET_STACK_ALIGN 16
 
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#else
 
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// AREG0 + one word for alignment
 
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#define TCG_TARGET_STACK_MINFRAME (92 + (2 + 1) * (int)sizeof(long) + \
 
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                                   TCG_STATIC_CALL_ARGS_SIZE)
 
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#define TCG_TARGET_CALL_STACK_OFFSET TCG_TARGET_STACK_MINFRAME
 
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#define TCG_TARGET_STACK_ALIGN 8
 
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#endif
 
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#ifdef __arch64__
 
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#define TCG_TARGET_EXTEND_ARGS 1
 
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#endif
 
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/* optional instructions */
 
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#define TCG_TARGET_HAS_div_i32          1
 
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#define TCG_TARGET_HAS_rot_i32          0
 
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#define TCG_TARGET_HAS_ext8s_i32        0
 
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#define TCG_TARGET_HAS_ext16s_i32       0
 
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#define TCG_TARGET_HAS_ext8u_i32        0
 
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#define TCG_TARGET_HAS_ext16u_i32       0
 
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#define TCG_TARGET_HAS_bswap16_i32      0
 
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#define TCG_TARGET_HAS_bswap32_i32      0
 
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#define TCG_TARGET_HAS_neg_i32          1
 
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#define TCG_TARGET_HAS_not_i32          1
 
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#define TCG_TARGET_HAS_andc_i32         1
 
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#define TCG_TARGET_HAS_orc_i32          1
 
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#define TCG_TARGET_HAS_eqv_i32          0
 
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#define TCG_TARGET_HAS_nand_i32         0
 
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#define TCG_TARGET_HAS_nor_i32          0
 
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#define TCG_TARGET_HAS_deposit_i32      0
 
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#if TCG_TARGET_REG_BITS == 64
 
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#define TCG_TARGET_HAS_div_i64          1
 
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#define TCG_TARGET_HAS_rot_i64          0
 
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#define TCG_TARGET_HAS_ext8s_i64        0
 
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#define TCG_TARGET_HAS_ext16s_i64       0
 
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#define TCG_TARGET_HAS_ext32s_i64       1
 
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#define TCG_TARGET_HAS_ext8u_i64        0
 
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#define TCG_TARGET_HAS_ext16u_i64       0
 
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#define TCG_TARGET_HAS_ext32u_i64       1
 
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#define TCG_TARGET_HAS_bswap16_i64      0
 
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#define TCG_TARGET_HAS_bswap32_i64      0
 
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#define TCG_TARGET_HAS_bswap64_i64      0
 
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#define TCG_TARGET_HAS_neg_i64          1
 
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#define TCG_TARGET_HAS_not_i64          1
 
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#define TCG_TARGET_HAS_andc_i64         1
 
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#define TCG_TARGET_HAS_orc_i64          1
 
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#define TCG_TARGET_HAS_eqv_i64          0
 
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#define TCG_TARGET_HAS_nand_i64         0
 
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#define TCG_TARGET_HAS_nor_i64          0
 
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#define TCG_TARGET_HAS_deposit_i64      0
 
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#endif
 
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/* Note: must be synced with dyngen-exec.h */
 
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#ifdef CONFIG_SOLARIS
 
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#define TCG_AREG0 TCG_REG_G2
 
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#elif defined(__sparc_v9__)
 
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#define TCG_AREG0 TCG_REG_G5
 
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#else
 
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#define TCG_AREG0 TCG_REG_G6
 
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#endif
 
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static inline void flush_icache_range(unsigned long start, unsigned long stop)
 
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{
 
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    unsigned long p;
 
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    p = start & ~(8UL - 1UL);
 
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    stop = (stop + (8UL - 1UL)) & ~(8UL - 1UL);
 
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    for (; p < stop; p += 8)
 
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        __asm__ __volatile__("flush\t%0" : : "r" (p));
 
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}