1616 lines
44 KiB
C
1616 lines
44 KiB
C
/*
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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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static uint8_t *tb_ret_addr;
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#ifdef __APPLE__
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#define LINKAGE_AREA_SIZE 24
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#define LR_OFFSET 8
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#elif defined _AIX
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#define LINKAGE_AREA_SIZE 52
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#define LR_OFFSET 8
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#else
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#define LINKAGE_AREA_SIZE 8
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#define LR_OFFSET 4
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#endif
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#define FAST_PATH
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#if TARGET_PHYS_ADDR_BITS <= 32
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#define ADDEND_OFFSET 0
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#else
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#define ADDEND_OFFSET 4
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#endif
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#ifndef GUEST_BASE
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#define GUEST_BASE 0
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#endif
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#ifdef CONFIG_USE_GUEST_BASE
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#define TCG_GUEST_BASE_REG 30
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#else
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#define TCG_GUEST_BASE_REG 0
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#endif
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#ifndef NDEBUG
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static const char * const tcg_target_reg_names[TCG_TARGET_NB_REGS] = {
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"r0",
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"r1",
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"rp",
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"r3",
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"r4",
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"r5",
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"r6",
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"r7",
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"r8",
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"r9",
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"r10",
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"r11",
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"r12",
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"r13",
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"r14",
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"r15",
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"r16",
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"r17",
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"r18",
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"r19",
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"r20",
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"r21",
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"r22",
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"r23",
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"r24",
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"r25",
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"r26",
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"r27",
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"r28",
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"r29",
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"r30",
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"r31"
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};
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#endif
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static const int tcg_target_reg_alloc_order[] = {
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TCG_REG_R14,
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TCG_REG_R15,
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TCG_REG_R16,
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TCG_REG_R17,
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TCG_REG_R18,
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TCG_REG_R19,
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TCG_REG_R20,
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TCG_REG_R21,
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TCG_REG_R22,
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TCG_REG_R23,
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TCG_REG_R28,
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TCG_REG_R29,
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TCG_REG_R30,
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TCG_REG_R31,
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#ifdef __APPLE__
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TCG_REG_R2,
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#endif
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TCG_REG_R3,
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TCG_REG_R4,
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TCG_REG_R5,
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TCG_REG_R6,
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TCG_REG_R7,
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TCG_REG_R8,
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TCG_REG_R9,
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TCG_REG_R10,
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#ifndef __APPLE__
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TCG_REG_R11,
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#endif
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TCG_REG_R12,
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#ifndef __linux__
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TCG_REG_R13,
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#endif
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TCG_REG_R24,
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TCG_REG_R25,
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TCG_REG_R26,
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TCG_REG_R27
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};
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static const int tcg_target_call_iarg_regs[] = {
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TCG_REG_R3,
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TCG_REG_R4,
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TCG_REG_R5,
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TCG_REG_R6,
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TCG_REG_R7,
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TCG_REG_R8,
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TCG_REG_R9,
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TCG_REG_R10
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};
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static const int tcg_target_call_oarg_regs[2] = {
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TCG_REG_R3,
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TCG_REG_R4
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};
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static const int tcg_target_callee_save_regs[] = {
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#ifdef __APPLE__
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TCG_REG_R11,
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TCG_REG_R13,
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#endif
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#ifdef _AIX
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TCG_REG_R13,
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#endif
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TCG_REG_R14,
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TCG_REG_R15,
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TCG_REG_R16,
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TCG_REG_R17,
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TCG_REG_R18,
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TCG_REG_R19,
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TCG_REG_R20,
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TCG_REG_R21,
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TCG_REG_R22,
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TCG_REG_R23,
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TCG_REG_R24,
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TCG_REG_R25,
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TCG_REG_R26,
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/* TCG_REG_R27, */ /* currently used for the global env, so no
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need to save */
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TCG_REG_R28,
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TCG_REG_R29,
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TCG_REG_R30,
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TCG_REG_R31
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};
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static uint32_t reloc_pc24_val (void *pc, tcg_target_long target)
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{
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tcg_target_long disp;
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disp = target - (tcg_target_long) pc;
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if ((disp << 6) >> 6 != disp)
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tcg_abort ();
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return disp & 0x3fffffc;
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}
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static void reloc_pc24 (void *pc, tcg_target_long target)
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{
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*(uint32_t *) pc = (*(uint32_t *) pc & ~0x3fffffc)
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| reloc_pc24_val (pc, target);
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}
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static uint16_t reloc_pc14_val (void *pc, tcg_target_long target)
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{
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tcg_target_long disp;
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disp = target - (tcg_target_long) pc;
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if (disp != (int16_t) disp)
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tcg_abort ();
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return disp & 0xfffc;
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}
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static void reloc_pc14 (void *pc, tcg_target_long target)
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{
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*(uint32_t *) pc = (*(uint32_t *) pc & ~0xfffc)
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| reloc_pc14_val (pc, target);
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}
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static void patch_reloc(uint8_t *code_ptr, int type,
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tcg_target_long value, tcg_target_long addend)
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{
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value += addend;
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switch (type) {
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case R_PPC_REL14:
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reloc_pc14 (code_ptr, value);
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break;
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case R_PPC_REL24:
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reloc_pc24 (code_ptr, value);
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break;
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default:
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tcg_abort();
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}
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}
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/* maximum number of register used for input function arguments */
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static int tcg_target_get_call_iarg_regs_count(int flags)
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{
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return ARRAY_SIZE (tcg_target_call_iarg_regs);
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}
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/* parse target specific constraints */
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static int target_parse_constraint(TCGArgConstraint *ct, const char **pct_str)
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{
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const char *ct_str;
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ct_str = *pct_str;
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switch (ct_str[0]) {
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case 'A': case 'B': case 'C': case 'D':
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ct->ct |= TCG_CT_REG;
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tcg_regset_set_reg(ct->u.regs, 3 + ct_str[0] - 'A');
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break;
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case 'r':
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ct->ct |= TCG_CT_REG;
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tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
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break;
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#ifdef CONFIG_SOFTMMU
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case 'L': /* qemu_ld constraint */
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ct->ct |= TCG_CT_REG;
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tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R4);
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break;
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case 'K': /* qemu_st[8..32] constraint */
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ct->ct |= TCG_CT_REG;
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tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R4);
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R5);
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#if TARGET_LONG_BITS == 64
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R6);
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#endif
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break;
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case 'M': /* qemu_st64 constraint */
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ct->ct |= TCG_CT_REG;
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tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R4);
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R5);
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R6);
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R7);
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break;
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#else
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case 'L':
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case 'K':
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ct->ct |= TCG_CT_REG;
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tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
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break;
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case 'M':
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ct->ct |= TCG_CT_REG;
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tcg_regset_set32(ct->u.regs, 0, 0xffffffff);
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tcg_regset_reset_reg(ct->u.regs, TCG_REG_R3);
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break;
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#endif
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default:
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return -1;
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}
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ct_str++;
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*pct_str = ct_str;
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return 0;
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}
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/* test if a constant matches the constraint */
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static int tcg_target_const_match(tcg_target_long val,
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const TCGArgConstraint *arg_ct)
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{
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int ct;
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ct = arg_ct->ct;
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if (ct & TCG_CT_CONST)
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return 1;
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return 0;
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}
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#define OPCD(opc) ((opc)<<26)
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#define XO31(opc) (OPCD(31)|((opc)<<1))
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#define XO19(opc) (OPCD(19)|((opc)<<1))
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#define B OPCD(18)
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#define BC OPCD(16)
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#define LBZ OPCD(34)
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#define LHZ OPCD(40)
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#define LHA OPCD(42)
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#define LWZ OPCD(32)
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#define STB OPCD(38)
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#define STH OPCD(44)
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#define STW OPCD(36)
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#define ADDI OPCD(14)
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#define ADDIS OPCD(15)
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#define ORI OPCD(24)
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#define ORIS OPCD(25)
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#define XORI OPCD(26)
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#define XORIS OPCD(27)
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#define ANDI OPCD(28)
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#define ANDIS OPCD(29)
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#define MULLI OPCD( 7)
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#define CMPLI OPCD(10)
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#define CMPI OPCD(11)
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#define LWZU OPCD(33)
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#define STWU OPCD(37)
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#define RLWINM OPCD(21)
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#define BCLR XO19( 16)
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#define BCCTR XO19(528)
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#define CRAND XO19(257)
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#define CRANDC XO19(129)
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#define CRNAND XO19(225)
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#define CROR XO19(449)
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#define EXTSB XO31(954)
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#define EXTSH XO31(922)
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#define ADD XO31(266)
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#define ADDE XO31(138)
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#define ADDC XO31( 10)
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#define AND XO31( 28)
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#define SUBF XO31( 40)
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#define SUBFC XO31( 8)
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#define SUBFE XO31(136)
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#define OR XO31(444)
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#define XOR XO31(316)
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#define MULLW XO31(235)
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#define MULHWU XO31( 11)
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#define DIVW XO31(491)
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#define DIVWU XO31(459)
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#define CMP XO31( 0)
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#define CMPL XO31( 32)
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#define LHBRX XO31(790)
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#define LWBRX XO31(534)
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#define STHBRX XO31(918)
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#define STWBRX XO31(662)
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#define MFSPR XO31(339)
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#define MTSPR XO31(467)
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#define SRAWI XO31(824)
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#define NEG XO31(104)
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#define LBZX XO31( 87)
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#define LHZX XO31(279)
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#define LHAX XO31(343)
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#define LWZX XO31( 23)
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#define STBX XO31(215)
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#define STHX XO31(407)
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#define STWX XO31(151)
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#define SPR(a,b) ((((a)<<5)|(b))<<11)
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#define LR SPR(8, 0)
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#define CTR SPR(9, 0)
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#define SLW XO31( 24)
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#define SRW XO31(536)
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#define SRAW XO31(792)
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#define TW XO31(4)
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#define TRAP (TW | TO (31))
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#define RT(r) ((r)<<21)
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#define RS(r) ((r)<<21)
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#define RA(r) ((r)<<16)
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#define RB(r) ((r)<<11)
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#define TO(t) ((t)<<21)
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#define SH(s) ((s)<<11)
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#define MB(b) ((b)<<6)
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#define ME(e) ((e)<<1)
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#define BO(o) ((o)<<21)
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#define LK 1
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#define TAB(t,a,b) (RT(t) | RA(a) | RB(b))
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#define SAB(s,a,b) (RS(s) | RA(a) | RB(b))
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#define BF(n) ((n)<<23)
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#define BI(n, c) (((c)+((n)*4))<<16)
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#define BT(n, c) (((c)+((n)*4))<<21)
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#define BA(n, c) (((c)+((n)*4))<<16)
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#define BB(n, c) (((c)+((n)*4))<<11)
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#define BO_COND_TRUE BO (12)
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#define BO_COND_FALSE BO (4)
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#define BO_ALWAYS BO (20)
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enum {
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CR_LT,
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CR_GT,
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CR_EQ,
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CR_SO
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};
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static const uint32_t tcg_to_bc[10] = {
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[TCG_COND_EQ] = BC | BI (7, CR_EQ) | BO_COND_TRUE,
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[TCG_COND_NE] = BC | BI (7, CR_EQ) | BO_COND_FALSE,
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[TCG_COND_LT] = BC | BI (7, CR_LT) | BO_COND_TRUE,
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[TCG_COND_GE] = BC | BI (7, CR_LT) | BO_COND_FALSE,
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[TCG_COND_LE] = BC | BI (7, CR_GT) | BO_COND_FALSE,
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[TCG_COND_GT] = BC | BI (7, CR_GT) | BO_COND_TRUE,
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[TCG_COND_LTU] = BC | BI (7, CR_LT) | BO_COND_TRUE,
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[TCG_COND_GEU] = BC | BI (7, CR_LT) | BO_COND_FALSE,
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[TCG_COND_LEU] = BC | BI (7, CR_GT) | BO_COND_FALSE,
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[TCG_COND_GTU] = BC | BI (7, CR_GT) | BO_COND_TRUE,
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};
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static void tcg_out_mov(TCGContext *s, int ret, int arg)
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{
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tcg_out32 (s, OR | SAB (arg, ret, arg));
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}
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static void tcg_out_movi(TCGContext *s, TCGType type,
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int ret, tcg_target_long arg)
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{
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if (arg == (int16_t) arg)
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tcg_out32 (s, ADDI | RT (ret) | RA (0) | (arg & 0xffff));
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else {
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tcg_out32 (s, ADDIS | RT (ret) | RA (0) | ((arg >> 16) & 0xffff));
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if (arg & 0xffff)
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tcg_out32 (s, ORI | RS (ret) | RA (ret) | (arg & 0xffff));
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}
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}
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static void tcg_out_ldst (TCGContext *s, int ret, int addr,
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int offset, int op1, int op2)
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{
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if (offset == (int16_t) offset)
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tcg_out32 (s, op1 | RT (ret) | RA (addr) | (offset & 0xffff));
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else {
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tcg_out_movi (s, TCG_TYPE_I32, 0, offset);
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tcg_out32 (s, op2 | RT (ret) | RA (addr) | RB (0));
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}
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}
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static void tcg_out_b (TCGContext *s, int mask, tcg_target_long target)
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{
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tcg_target_long disp;
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disp = target - (tcg_target_long) s->code_ptr;
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if ((disp << 6) >> 6 == disp)
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tcg_out32 (s, B | (disp & 0x3fffffc) | mask);
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else {
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tcg_out_movi (s, TCG_TYPE_I32, 0, (tcg_target_long) target);
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tcg_out32 (s, MTSPR | RS (0) | CTR);
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tcg_out32 (s, BCCTR | BO_ALWAYS | mask);
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}
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}
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static void tcg_out_call (TCGContext *s, tcg_target_long arg, int const_arg)
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{
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#ifdef _AIX
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int reg;
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if (const_arg) {
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reg = 2;
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tcg_out_movi (s, TCG_TYPE_I32, reg, arg);
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}
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else reg = arg;
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tcg_out32 (s, LWZ | RT (0) | RA (reg));
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tcg_out32 (s, MTSPR | RA (0) | CTR);
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tcg_out32 (s, LWZ | RT (2) | RA (reg) | 4);
|
|
tcg_out32 (s, BCCTR | BO_ALWAYS | LK);
|
|
#else
|
|
if (const_arg) {
|
|
tcg_out_b (s, LK, arg);
|
|
}
|
|
else {
|
|
tcg_out32 (s, MTSPR | RS (arg) | LR);
|
|
tcg_out32 (s, BCLR | BO_ALWAYS | LK);
|
|
}
|
|
#endif
|
|
}
|
|
|
|
#if defined(CONFIG_SOFTMMU)
|
|
|
|
#include "../../softmmu_defs.h"
|
|
|
|
static void *qemu_ld_helpers[4] = {
|
|
__ldb_mmu,
|
|
__ldw_mmu,
|
|
__ldl_mmu,
|
|
__ldq_mmu,
|
|
};
|
|
|
|
static void *qemu_st_helpers[4] = {
|
|
__stb_mmu,
|
|
__stw_mmu,
|
|
__stl_mmu,
|
|
__stq_mmu,
|
|
};
|
|
#endif
|
|
|
|
static void tcg_out_qemu_ld (TCGContext *s, const TCGArg *args, int opc)
|
|
{
|
|
int addr_reg, data_reg, data_reg2, r0, r1, rbase, mem_index, s_bits, bswap;
|
|
#ifdef CONFIG_SOFTMMU
|
|
int r2;
|
|
void *label1_ptr, *label2_ptr;
|
|
#endif
|
|
#if TARGET_LONG_BITS == 64
|
|
int addr_reg2;
|
|
#endif
|
|
|
|
data_reg = *args++;
|
|
if (opc == 3)
|
|
data_reg2 = *args++;
|
|
else
|
|
data_reg2 = 0;
|
|
addr_reg = *args++;
|
|
#if TARGET_LONG_BITS == 64
|
|
addr_reg2 = *args++;
|
|
#endif
|
|
mem_index = *args;
|
|
s_bits = opc & 3;
|
|
|
|
#ifdef CONFIG_SOFTMMU
|
|
r0 = 3;
|
|
r1 = 4;
|
|
r2 = 0;
|
|
rbase = 0;
|
|
|
|
tcg_out32 (s, (RLWINM
|
|
| RA (r0)
|
|
| RS (addr_reg)
|
|
| SH (32 - (TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS))
|
|
| MB (32 - (CPU_TLB_BITS + CPU_TLB_ENTRY_BITS))
|
|
| ME (31 - CPU_TLB_ENTRY_BITS)
|
|
)
|
|
);
|
|
tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (TCG_AREG0));
|
|
tcg_out32 (s, (LWZU
|
|
| RT (r1)
|
|
| RA (r0)
|
|
| offsetof (CPUState, tlb_table[mem_index][0].addr_read)
|
|
)
|
|
);
|
|
tcg_out32 (s, (RLWINM
|
|
| RA (r2)
|
|
| RS (addr_reg)
|
|
| SH (0)
|
|
| MB ((32 - s_bits) & 31)
|
|
| ME (31 - TARGET_PAGE_BITS)
|
|
)
|
|
);
|
|
|
|
tcg_out32 (s, CMP | BF (7) | RA (r2) | RB (r1));
|
|
#if TARGET_LONG_BITS == 64
|
|
tcg_out32 (s, LWZ | RT (r1) | RA (r0) | 4);
|
|
tcg_out32 (s, CMP | BF (6) | RA (addr_reg2) | RB (r1));
|
|
tcg_out32 (s, CRAND | BT (7, CR_EQ) | BA (6, CR_EQ) | BB (7, CR_EQ));
|
|
#endif
|
|
|
|
label1_ptr = s->code_ptr;
|
|
#ifdef FAST_PATH
|
|
tcg_out32 (s, BC | BI (7, CR_EQ) | BO_COND_TRUE);
|
|
#endif
|
|
|
|
/* slow path */
|
|
#if TARGET_LONG_BITS == 32
|
|
tcg_out_mov (s, 3, addr_reg);
|
|
tcg_out_movi (s, TCG_TYPE_I32, 4, mem_index);
|
|
#else
|
|
tcg_out_mov (s, 3, addr_reg2);
|
|
tcg_out_mov (s, 4, addr_reg);
|
|
tcg_out_movi (s, TCG_TYPE_I32, 5, mem_index);
|
|
#endif
|
|
|
|
tcg_out_call (s, (tcg_target_long) qemu_ld_helpers[s_bits], 1);
|
|
switch (opc) {
|
|
case 0|4:
|
|
tcg_out32 (s, EXTSB | RA (data_reg) | RS (3));
|
|
break;
|
|
case 1|4:
|
|
tcg_out32 (s, EXTSH | RA (data_reg) | RS (3));
|
|
break;
|
|
case 0:
|
|
case 1:
|
|
case 2:
|
|
if (data_reg != 3)
|
|
tcg_out_mov (s, data_reg, 3);
|
|
break;
|
|
case 3:
|
|
if (data_reg == 3) {
|
|
if (data_reg2 == 4) {
|
|
tcg_out_mov (s, 0, 4);
|
|
tcg_out_mov (s, 4, 3);
|
|
tcg_out_mov (s, 3, 0);
|
|
}
|
|
else {
|
|
tcg_out_mov (s, data_reg2, 3);
|
|
tcg_out_mov (s, 3, 4);
|
|
}
|
|
}
|
|
else {
|
|
if (data_reg != 4) tcg_out_mov (s, data_reg, 4);
|
|
if (data_reg2 != 3) tcg_out_mov (s, data_reg2, 3);
|
|
}
|
|
break;
|
|
}
|
|
label2_ptr = s->code_ptr;
|
|
tcg_out32 (s, B);
|
|
|
|
/* label1: fast path */
|
|
#ifdef FAST_PATH
|
|
reloc_pc14 (label1_ptr, (tcg_target_long) s->code_ptr);
|
|
#endif
|
|
|
|
/* r0 now contains &env->tlb_table[mem_index][index].addr_read */
|
|
tcg_out32 (s, (LWZ
|
|
| RT (r0)
|
|
| RA (r0)
|
|
| (ADDEND_OFFSET + offsetof (CPUTLBEntry, addend)
|
|
- offsetof (CPUTLBEntry, addr_read))
|
|
));
|
|
/* r0 = env->tlb_table[mem_index][index].addend */
|
|
tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (addr_reg));
|
|
/* r0 = env->tlb_table[mem_index][index].addend + addr */
|
|
|
|
#else /* !CONFIG_SOFTMMU */
|
|
r0 = addr_reg;
|
|
r1 = 3;
|
|
rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
|
|
#endif
|
|
|
|
#ifdef TARGET_WORDS_BIGENDIAN
|
|
bswap = 0;
|
|
#else
|
|
bswap = 1;
|
|
#endif
|
|
|
|
switch (opc) {
|
|
default:
|
|
case 0:
|
|
tcg_out32 (s, LBZX | TAB (data_reg, rbase, r0));
|
|
break;
|
|
case 0|4:
|
|
tcg_out32 (s, LBZX | TAB (data_reg, rbase, r0));
|
|
tcg_out32 (s, EXTSB | RA (data_reg) | RS (data_reg));
|
|
break;
|
|
case 1:
|
|
if (bswap)
|
|
tcg_out32 (s, LHBRX | TAB (data_reg, rbase, r0));
|
|
else
|
|
tcg_out32 (s, LHZX | TAB (data_reg, rbase, r0));
|
|
break;
|
|
case 1|4:
|
|
if (bswap) {
|
|
tcg_out32 (s, LHBRX | TAB (data_reg, rbase, r0));
|
|
tcg_out32 (s, EXTSH | RA (data_reg) | RS (data_reg));
|
|
}
|
|
else tcg_out32 (s, LHAX | TAB (data_reg, rbase, r0));
|
|
break;
|
|
case 2:
|
|
if (bswap)
|
|
tcg_out32 (s, LWBRX | TAB (data_reg, rbase, r0));
|
|
else
|
|
tcg_out32 (s, LWZX | TAB (data_reg, rbase, r0));
|
|
break;
|
|
case 3:
|
|
if (bswap) {
|
|
tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4);
|
|
tcg_out32 (s, LWBRX | TAB (data_reg, rbase, r0));
|
|
tcg_out32 (s, LWBRX | TAB (data_reg2, rbase, r1));
|
|
}
|
|
else {
|
|
#ifdef CONFIG_USE_GUEST_BASE
|
|
tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4);
|
|
tcg_out32 (s, LWZX | TAB (data_reg2, rbase, r0));
|
|
tcg_out32 (s, LWZX | TAB (data_reg, rbase, r1));
|
|
#else
|
|
if (r0 == data_reg2) {
|
|
tcg_out32 (s, LWZ | RT (0) | RA (r0));
|
|
tcg_out32 (s, LWZ | RT (data_reg) | RA (r0) | 4);
|
|
tcg_out_mov (s, data_reg2, 0);
|
|
}
|
|
else {
|
|
tcg_out32 (s, LWZ | RT (data_reg2) | RA (r0));
|
|
tcg_out32 (s, LWZ | RT (data_reg) | RA (r0) | 4);
|
|
}
|
|
#endif
|
|
}
|
|
break;
|
|
}
|
|
|
|
#ifdef CONFIG_SOFTMMU
|
|
reloc_pc24 (label2_ptr, (tcg_target_long) s->code_ptr);
|
|
#endif
|
|
}
|
|
|
|
static void tcg_out_qemu_st (TCGContext *s, const TCGArg *args, int opc)
|
|
{
|
|
int addr_reg, r0, r1, data_reg, data_reg2, mem_index, bswap, rbase;
|
|
#ifdef CONFIG_SOFTMMU
|
|
int r2, ir;
|
|
void *label1_ptr, *label2_ptr;
|
|
#endif
|
|
#if TARGET_LONG_BITS == 64
|
|
int addr_reg2;
|
|
#endif
|
|
|
|
data_reg = *args++;
|
|
if (opc == 3)
|
|
data_reg2 = *args++;
|
|
else
|
|
data_reg2 = 0;
|
|
addr_reg = *args++;
|
|
#if TARGET_LONG_BITS == 64
|
|
addr_reg2 = *args++;
|
|
#endif
|
|
mem_index = *args;
|
|
|
|
#ifdef CONFIG_SOFTMMU
|
|
r0 = 3;
|
|
r1 = 4;
|
|
r2 = 0;
|
|
rbase = 0;
|
|
|
|
tcg_out32 (s, (RLWINM
|
|
| RA (r0)
|
|
| RS (addr_reg)
|
|
| SH (32 - (TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS))
|
|
| MB (32 - (CPU_TLB_ENTRY_BITS + CPU_TLB_BITS))
|
|
| ME (31 - CPU_TLB_ENTRY_BITS)
|
|
)
|
|
);
|
|
tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (TCG_AREG0));
|
|
tcg_out32 (s, (LWZU
|
|
| RT (r1)
|
|
| RA (r0)
|
|
| offsetof (CPUState, tlb_table[mem_index][0].addr_write)
|
|
)
|
|
);
|
|
tcg_out32 (s, (RLWINM
|
|
| RA (r2)
|
|
| RS (addr_reg)
|
|
| SH (0)
|
|
| MB ((32 - opc) & 31)
|
|
| ME (31 - TARGET_PAGE_BITS)
|
|
)
|
|
);
|
|
|
|
tcg_out32 (s, CMP | (7 << 23) | RA (r2) | RB (r1));
|
|
#if TARGET_LONG_BITS == 64
|
|
tcg_out32 (s, LWZ | RT (r1) | RA (r0) | 4);
|
|
tcg_out32 (s, CMP | BF (6) | RA (addr_reg2) | RB (r1));
|
|
tcg_out32 (s, CRAND | BT (7, CR_EQ) | BA (6, CR_EQ) | BB (7, CR_EQ));
|
|
#endif
|
|
|
|
label1_ptr = s->code_ptr;
|
|
#ifdef FAST_PATH
|
|
tcg_out32 (s, BC | BI (7, CR_EQ) | BO_COND_TRUE);
|
|
#endif
|
|
|
|
/* slow path */
|
|
#if TARGET_LONG_BITS == 32
|
|
tcg_out_mov (s, 3, addr_reg);
|
|
ir = 4;
|
|
#else
|
|
tcg_out_mov (s, 3, addr_reg2);
|
|
tcg_out_mov (s, 4, addr_reg);
|
|
#ifdef TCG_TARGET_CALL_ALIGN_ARGS
|
|
ir = 5;
|
|
#else
|
|
ir = 4;
|
|
#endif
|
|
#endif
|
|
|
|
switch (opc) {
|
|
case 0:
|
|
tcg_out32 (s, (RLWINM
|
|
| RA (ir)
|
|
| RS (data_reg)
|
|
| SH (0)
|
|
| MB (24)
|
|
| ME (31)));
|
|
break;
|
|
case 1:
|
|
tcg_out32 (s, (RLWINM
|
|
| RA (ir)
|
|
| RS (data_reg)
|
|
| SH (0)
|
|
| MB (16)
|
|
| ME (31)));
|
|
break;
|
|
case 2:
|
|
tcg_out_mov (s, ir, data_reg);
|
|
break;
|
|
case 3:
|
|
#ifdef TCG_TARGET_CALL_ALIGN_ARGS
|
|
ir = 5;
|
|
#endif
|
|
tcg_out_mov (s, ir++, data_reg2);
|
|
tcg_out_mov (s, ir, data_reg);
|
|
break;
|
|
}
|
|
ir++;
|
|
|
|
tcg_out_movi (s, TCG_TYPE_I32, ir, mem_index);
|
|
tcg_out_call (s, (tcg_target_long) qemu_st_helpers[opc], 1);
|
|
label2_ptr = s->code_ptr;
|
|
tcg_out32 (s, B);
|
|
|
|
/* label1: fast path */
|
|
#ifdef FAST_PATH
|
|
reloc_pc14 (label1_ptr, (tcg_target_long) s->code_ptr);
|
|
#endif
|
|
|
|
tcg_out32 (s, (LWZ
|
|
| RT (r0)
|
|
| RA (r0)
|
|
| (ADDEND_OFFSET + offsetof (CPUTLBEntry, addend)
|
|
- offsetof (CPUTLBEntry, addr_write))
|
|
));
|
|
/* r0 = env->tlb_table[mem_index][index].addend */
|
|
tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (addr_reg));
|
|
/* r0 = env->tlb_table[mem_index][index].addend + addr */
|
|
|
|
#else /* !CONFIG_SOFTMMU */
|
|
r0 = addr_reg;
|
|
r1 = 3;
|
|
rbase = GUEST_BASE ? TCG_GUEST_BASE_REG : 0;
|
|
#endif
|
|
|
|
#ifdef TARGET_WORDS_BIGENDIAN
|
|
bswap = 0;
|
|
#else
|
|
bswap = 1;
|
|
#endif
|
|
switch (opc) {
|
|
case 0:
|
|
tcg_out32 (s, STBX | SAB (data_reg, rbase, r0));
|
|
break;
|
|
case 1:
|
|
if (bswap)
|
|
tcg_out32 (s, STHBRX | SAB (data_reg, rbase, r0));
|
|
else
|
|
tcg_out32 (s, STHX | SAB (data_reg, rbase, r0));
|
|
break;
|
|
case 2:
|
|
if (bswap)
|
|
tcg_out32 (s, STWBRX | SAB (data_reg, rbase, r0));
|
|
else
|
|
tcg_out32 (s, STWX | SAB (data_reg, rbase, r0));
|
|
break;
|
|
case 3:
|
|
if (bswap) {
|
|
tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4);
|
|
tcg_out32 (s, STWBRX | SAB (data_reg, rbase, r0));
|
|
tcg_out32 (s, STWBRX | SAB (data_reg2, rbase, r1));
|
|
}
|
|
else {
|
|
#ifdef CONFIG_USE_GUEST_BASE
|
|
tcg_out32 (s, STWX | SAB (data_reg2, rbase, r0));
|
|
tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4);
|
|
tcg_out32 (s, STWX | SAB (data_reg, rbase, r1));
|
|
#else
|
|
tcg_out32 (s, STW | RS (data_reg2) | RA (r0));
|
|
tcg_out32 (s, STW | RS (data_reg) | RA (r0) | 4);
|
|
#endif
|
|
}
|
|
break;
|
|
}
|
|
|
|
#ifdef CONFIG_SOFTMMU
|
|
reloc_pc24 (label2_ptr, (tcg_target_long) s->code_ptr);
|
|
#endif
|
|
}
|
|
|
|
void tcg_target_qemu_prologue (TCGContext *s)
|
|
{
|
|
int i, frame_size;
|
|
|
|
frame_size = 0
|
|
+ LINKAGE_AREA_SIZE
|
|
+ TCG_STATIC_CALL_ARGS_SIZE
|
|
+ ARRAY_SIZE (tcg_target_callee_save_regs) * 4
|
|
;
|
|
frame_size = (frame_size + 15) & ~15;
|
|
|
|
#ifdef _AIX
|
|
{
|
|
uint32_t addr;
|
|
|
|
/* First emit adhoc function descriptor */
|
|
addr = (uint32_t) s->code_ptr + 12;
|
|
tcg_out32 (s, addr); /* entry point */
|
|
s->code_ptr += 8; /* skip TOC and environment pointer */
|
|
}
|
|
#endif
|
|
tcg_out32 (s, MFSPR | RT (0) | LR);
|
|
tcg_out32 (s, STWU | RS (1) | RA (1) | (-frame_size & 0xffff));
|
|
for (i = 0; i < ARRAY_SIZE (tcg_target_callee_save_regs); ++i)
|
|
tcg_out32 (s, (STW
|
|
| RS (tcg_target_callee_save_regs[i])
|
|
| RA (1)
|
|
| (i * 4 + LINKAGE_AREA_SIZE + TCG_STATIC_CALL_ARGS_SIZE)
|
|
)
|
|
);
|
|
tcg_out32 (s, STW | RS (0) | RA (1) | (frame_size + LR_OFFSET));
|
|
|
|
#ifdef CONFIG_USE_GUEST_BASE
|
|
tcg_out_movi (s, TCG_TYPE_I32, TCG_GUEST_BASE_REG, GUEST_BASE);
|
|
#endif
|
|
|
|
tcg_out32 (s, MTSPR | RS (3) | CTR);
|
|
tcg_out32 (s, BCCTR | BO_ALWAYS);
|
|
tb_ret_addr = s->code_ptr;
|
|
|
|
for (i = 0; i < ARRAY_SIZE (tcg_target_callee_save_regs); ++i)
|
|
tcg_out32 (s, (LWZ
|
|
| RT (tcg_target_callee_save_regs[i])
|
|
| RA (1)
|
|
| (i * 4 + LINKAGE_AREA_SIZE + TCG_STATIC_CALL_ARGS_SIZE)
|
|
)
|
|
);
|
|
tcg_out32 (s, LWZ | RT (0) | RA (1) | (frame_size + LR_OFFSET));
|
|
tcg_out32 (s, MTSPR | RS (0) | LR);
|
|
tcg_out32 (s, ADDI | RT (1) | RA (1) | frame_size);
|
|
tcg_out32 (s, BCLR | BO_ALWAYS);
|
|
}
|
|
|
|
static void tcg_out_ld (TCGContext *s, TCGType type, int ret, int arg1,
|
|
tcg_target_long arg2)
|
|
{
|
|
tcg_out_ldst (s, ret, arg1, arg2, LWZ, LWZX);
|
|
}
|
|
|
|
static void tcg_out_st (TCGContext *s, TCGType type, int arg, int arg1,
|
|
tcg_target_long arg2)
|
|
{
|
|
tcg_out_ldst (s, arg, arg1, arg2, STW, STWX);
|
|
}
|
|
|
|
static void ppc_addi (TCGContext *s, int rt, int ra, tcg_target_long si)
|
|
{
|
|
if (!si && rt == ra)
|
|
return;
|
|
|
|
if (si == (int16_t) si)
|
|
tcg_out32 (s, ADDI | RT (rt) | RA (ra) | (si & 0xffff));
|
|
else {
|
|
uint16_t h = ((si >> 16) & 0xffff) + ((uint16_t) si >> 15);
|
|
tcg_out32 (s, ADDIS | RT (rt) | RA (ra) | h);
|
|
tcg_out32 (s, ADDI | RT (rt) | RA (rt) | (si & 0xffff));
|
|
}
|
|
}
|
|
|
|
static void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val)
|
|
{
|
|
ppc_addi (s, reg, reg, val);
|
|
}
|
|
|
|
static void tcg_out_cmp (TCGContext *s, int cond, TCGArg arg1, TCGArg arg2,
|
|
int const_arg2, int cr)
|
|
{
|
|
int imm;
|
|
uint32_t op;
|
|
|
|
switch (cond) {
|
|
case TCG_COND_EQ:
|
|
case TCG_COND_NE:
|
|
if (const_arg2) {
|
|
if ((int16_t) arg2 == arg2) {
|
|
op = CMPI;
|
|
imm = 1;
|
|
break;
|
|
}
|
|
else if ((uint16_t) arg2 == arg2) {
|
|
op = CMPLI;
|
|
imm = 1;
|
|
break;
|
|
}
|
|
}
|
|
op = CMPL;
|
|
imm = 0;
|
|
break;
|
|
|
|
case TCG_COND_LT:
|
|
case TCG_COND_GE:
|
|
case TCG_COND_LE:
|
|
case TCG_COND_GT:
|
|
if (const_arg2) {
|
|
if ((int16_t) arg2 == arg2) {
|
|
op = CMPI;
|
|
imm = 1;
|
|
break;
|
|
}
|
|
}
|
|
op = CMP;
|
|
imm = 0;
|
|
break;
|
|
|
|
case TCG_COND_LTU:
|
|
case TCG_COND_GEU:
|
|
case TCG_COND_LEU:
|
|
case TCG_COND_GTU:
|
|
if (const_arg2) {
|
|
if ((uint16_t) arg2 == arg2) {
|
|
op = CMPLI;
|
|
imm = 1;
|
|
break;
|
|
}
|
|
}
|
|
op = CMPL;
|
|
imm = 0;
|
|
break;
|
|
|
|
default:
|
|
tcg_abort ();
|
|
}
|
|
op |= BF (cr);
|
|
|
|
if (imm)
|
|
tcg_out32 (s, op | RA (arg1) | (arg2 & 0xffff));
|
|
else {
|
|
if (const_arg2) {
|
|
tcg_out_movi (s, TCG_TYPE_I32, 0, arg2);
|
|
tcg_out32 (s, op | RA (arg1) | RB (0));
|
|
}
|
|
else
|
|
tcg_out32 (s, op | RA (arg1) | RB (arg2));
|
|
}
|
|
|
|
}
|
|
|
|
static void tcg_out_bc (TCGContext *s, int bc, int label_index)
|
|
{
|
|
TCGLabel *l = &s->labels[label_index];
|
|
|
|
if (l->has_value)
|
|
tcg_out32 (s, bc | reloc_pc14_val (s->code_ptr, l->u.value));
|
|
else {
|
|
uint16_t val = *(uint16_t *) &s->code_ptr[2];
|
|
|
|
/* Thanks to Andrzej Zaborowski */
|
|
tcg_out32 (s, bc | (val & 0xfffc));
|
|
tcg_out_reloc (s, s->code_ptr - 4, R_PPC_REL14, label_index, 0);
|
|
}
|
|
}
|
|
|
|
static void tcg_out_brcond (TCGContext *s, int cond,
|
|
TCGArg arg1, TCGArg arg2, int const_arg2,
|
|
int label_index)
|
|
{
|
|
tcg_out_cmp (s, cond, arg1, arg2, const_arg2, 7);
|
|
tcg_out_bc (s, tcg_to_bc[cond], label_index);
|
|
}
|
|
|
|
/* XXX: we implement it at the target level to avoid having to
|
|
handle cross basic blocks temporaries */
|
|
static void tcg_out_brcond2 (TCGContext *s, const TCGArg *args,
|
|
const int *const_args)
|
|
{
|
|
int cond = args[4], label_index = args[5], op;
|
|
struct { int bit1; int bit2; int cond2; } bits[] = {
|
|
[TCG_COND_LT ] = { CR_LT, CR_LT, TCG_COND_LT },
|
|
[TCG_COND_LE ] = { CR_LT, CR_GT, TCG_COND_LT },
|
|
[TCG_COND_GT ] = { CR_GT, CR_GT, TCG_COND_GT },
|
|
[TCG_COND_GE ] = { CR_GT, CR_LT, TCG_COND_GT },
|
|
[TCG_COND_LTU] = { CR_LT, CR_LT, TCG_COND_LTU },
|
|
[TCG_COND_LEU] = { CR_LT, CR_GT, TCG_COND_LTU },
|
|
[TCG_COND_GTU] = { CR_GT, CR_GT, TCG_COND_GTU },
|
|
[TCG_COND_GEU] = { CR_GT, CR_LT, TCG_COND_GTU },
|
|
}, *b = &bits[cond];
|
|
|
|
switch (cond) {
|
|
case TCG_COND_EQ:
|
|
case TCG_COND_NE:
|
|
op = (cond == TCG_COND_EQ) ? CRAND : CRNAND;
|
|
tcg_out_cmp (s, cond, args[0], args[2], const_args[2], 6);
|
|
tcg_out_cmp (s, cond, args[1], args[3], const_args[3], 7);
|
|
tcg_out32 (s, op | BT (7, CR_EQ) | BA (6, CR_EQ) | BB (7, CR_EQ));
|
|
break;
|
|
case TCG_COND_LT:
|
|
case TCG_COND_LE:
|
|
case TCG_COND_GT:
|
|
case TCG_COND_GE:
|
|
case TCG_COND_LTU:
|
|
case TCG_COND_LEU:
|
|
case TCG_COND_GTU:
|
|
case TCG_COND_GEU:
|
|
op = (b->bit1 != b->bit2) ? CRANDC : CRAND;
|
|
tcg_out_cmp (s, b->cond2, args[1], args[3], const_args[3], 5);
|
|
tcg_out_cmp (s, TCG_COND_EQ, args[1], args[3], const_args[3], 6);
|
|
tcg_out_cmp (s, cond, args[0], args[2], const_args[2], 7);
|
|
tcg_out32 (s, op | BT (7, CR_EQ) | BA (6, CR_EQ) | BB (7, b->bit2));
|
|
tcg_out32 (s, CROR | BT (7, CR_EQ) | BA (5, b->bit1) | BB (7, CR_EQ));
|
|
break;
|
|
default:
|
|
tcg_abort();
|
|
}
|
|
|
|
tcg_out_bc (s, (BC | BI (7, CR_EQ) | BO_COND_TRUE), label_index);
|
|
}
|
|
|
|
void ppc_tb_set_jmp_target (unsigned long jmp_addr, unsigned long addr)
|
|
{
|
|
uint32_t *ptr;
|
|
long disp = addr - jmp_addr;
|
|
unsigned long patch_size;
|
|
|
|
ptr = (uint32_t *)jmp_addr;
|
|
|
|
if ((disp << 6) >> 6 != disp) {
|
|
ptr[0] = 0x3c000000 | (addr >> 16); /* lis 0,addr@ha */
|
|
ptr[1] = 0x60000000 | (addr & 0xffff); /* la 0,addr@l(0) */
|
|
ptr[2] = 0x7c0903a6; /* mtctr 0 */
|
|
ptr[3] = 0x4e800420; /* brctr */
|
|
patch_size = 16;
|
|
} else {
|
|
/* patch the branch destination */
|
|
if (disp != 16) {
|
|
*ptr = 0x48000000 | (disp & 0x03fffffc); /* b disp */
|
|
patch_size = 4;
|
|
} else {
|
|
ptr[0] = 0x60000000; /* nop */
|
|
ptr[1] = 0x60000000;
|
|
ptr[2] = 0x60000000;
|
|
ptr[3] = 0x60000000;
|
|
patch_size = 16;
|
|
}
|
|
}
|
|
/* flush icache */
|
|
flush_icache_range(jmp_addr, jmp_addr + patch_size);
|
|
}
|
|
|
|
static void tcg_out_op(TCGContext *s, int opc, const TCGArg *args,
|
|
const int *const_args)
|
|
{
|
|
switch (opc) {
|
|
case INDEX_op_exit_tb:
|
|
tcg_out_movi (s, TCG_TYPE_I32, TCG_REG_R3, args[0]);
|
|
tcg_out_b (s, 0, (tcg_target_long) tb_ret_addr);
|
|
break;
|
|
case INDEX_op_goto_tb:
|
|
if (s->tb_jmp_offset) {
|
|
/* direct jump method */
|
|
|
|
s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
|
|
s->code_ptr += 16;
|
|
}
|
|
else {
|
|
tcg_abort ();
|
|
}
|
|
s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
|
|
break;
|
|
case INDEX_op_br:
|
|
{
|
|
TCGLabel *l = &s->labels[args[0]];
|
|
|
|
if (l->has_value) {
|
|
tcg_out_b (s, 0, l->u.value);
|
|
}
|
|
else {
|
|
uint32_t val = *(uint32_t *) s->code_ptr;
|
|
|
|
/* Thanks to Andrzej Zaborowski */
|
|
tcg_out32 (s, B | (val & 0x3fffffc));
|
|
tcg_out_reloc (s, s->code_ptr - 4, R_PPC_REL24, args[0], 0);
|
|
}
|
|
}
|
|
break;
|
|
case INDEX_op_call:
|
|
tcg_out_call (s, args[0], const_args[0]);
|
|
break;
|
|
case INDEX_op_jmp:
|
|
if (const_args[0]) {
|
|
tcg_out_b (s, 0, args[0]);
|
|
}
|
|
else {
|
|
tcg_out32 (s, MTSPR | RS (args[0]) | CTR);
|
|
tcg_out32 (s, BCCTR | BO_ALWAYS);
|
|
}
|
|
break;
|
|
case INDEX_op_movi_i32:
|
|
tcg_out_movi(s, TCG_TYPE_I32, args[0], args[1]);
|
|
break;
|
|
case INDEX_op_ld8u_i32:
|
|
tcg_out_ldst (s, args[0], args[1], args[2], LBZ, LBZX);
|
|
break;
|
|
case INDEX_op_ld8s_i32:
|
|
tcg_out_ldst (s, args[0], args[1], args[2], LBZ, LBZX);
|
|
tcg_out32 (s, EXTSB | RS (args[0]) | RA (args[0]));
|
|
break;
|
|
case INDEX_op_ld16u_i32:
|
|
tcg_out_ldst (s, args[0], args[1], args[2], LHZ, LHZX);
|
|
break;
|
|
case INDEX_op_ld16s_i32:
|
|
tcg_out_ldst (s, args[0], args[1], args[2], LHA, LHAX);
|
|
break;
|
|
case INDEX_op_ld_i32:
|
|
tcg_out_ldst (s, args[0], args[1], args[2], LWZ, LWZX);
|
|
break;
|
|
case INDEX_op_st8_i32:
|
|
tcg_out_ldst (s, args[0], args[1], args[2], STB, STBX);
|
|
break;
|
|
case INDEX_op_st16_i32:
|
|
tcg_out_ldst (s, args[0], args[1], args[2], STH, STHX);
|
|
break;
|
|
case INDEX_op_st_i32:
|
|
tcg_out_ldst (s, args[0], args[1], args[2], STW, STWX);
|
|
break;
|
|
|
|
case INDEX_op_add_i32:
|
|
if (const_args[2])
|
|
ppc_addi (s, args[0], args[1], args[2]);
|
|
else
|
|
tcg_out32 (s, ADD | TAB (args[0], args[1], args[2]));
|
|
break;
|
|
case INDEX_op_sub_i32:
|
|
if (const_args[2])
|
|
ppc_addi (s, args[0], args[1], -args[2]);
|
|
else
|
|
tcg_out32 (s, SUBF | TAB (args[0], args[2], args[1]));
|
|
break;
|
|
|
|
case INDEX_op_and_i32:
|
|
if (const_args[2]) {
|
|
uint32_t c;
|
|
|
|
c = args[2];
|
|
|
|
if (!c) {
|
|
tcg_out_movi (s, TCG_TYPE_I32, args[0], 0);
|
|
break;
|
|
}
|
|
#ifdef __PPU__
|
|
uint32_t t, n;
|
|
int mb, me;
|
|
|
|
n = c ^ -(c & 1);
|
|
t = n + (n & -n);
|
|
|
|
if ((t & (t - 1)) == 0) {
|
|
int lzc, tzc;
|
|
|
|
if ((c & 0x80000001) == 0x80000001) {
|
|
lzc = clz32 (n);
|
|
tzc = ctz32 (n);
|
|
|
|
mb = 32 - tzc;
|
|
me = lzc - 1;
|
|
}
|
|
else {
|
|
lzc = clz32 (c);
|
|
tzc = ctz32 (c);
|
|
|
|
mb = lzc;
|
|
me = 31 - tzc;
|
|
}
|
|
|
|
tcg_out32 (s, (RLWINM
|
|
| RA (args[0])
|
|
| RS (args[1])
|
|
| SH (0)
|
|
| MB (mb)
|
|
| ME (me)
|
|
)
|
|
);
|
|
}
|
|
else
|
|
#endif /* !__PPU__ */
|
|
{
|
|
if ((c & 0xffff) == c)
|
|
tcg_out32 (s, ANDI | RS (args[1]) | RA (args[0]) | c);
|
|
else if ((c & 0xffff0000) == c)
|
|
tcg_out32 (s, ANDIS | RS (args[1]) | RA (args[0])
|
|
| ((c >> 16) & 0xffff));
|
|
else {
|
|
tcg_out_movi (s, TCG_TYPE_I32, 0, c);
|
|
tcg_out32 (s, AND | SAB (args[1], args[0], 0));
|
|
}
|
|
}
|
|
}
|
|
else
|
|
tcg_out32 (s, AND | SAB (args[1], args[0], args[2]));
|
|
break;
|
|
case INDEX_op_or_i32:
|
|
if (const_args[2]) {
|
|
if (args[2] & 0xffff) {
|
|
tcg_out32 (s, ORI | RS (args[1]) | RA (args[0])
|
|
| (args[2] & 0xffff));
|
|
if (args[2] >> 16)
|
|
tcg_out32 (s, ORIS | RS (args[0]) | RA (args[0])
|
|
| ((args[2] >> 16) & 0xffff));
|
|
}
|
|
else {
|
|
tcg_out32 (s, ORIS | RS (args[1]) | RA (args[0])
|
|
| ((args[2] >> 16) & 0xffff));
|
|
}
|
|
}
|
|
else
|
|
tcg_out32 (s, OR | SAB (args[1], args[0], args[2]));
|
|
break;
|
|
case INDEX_op_xor_i32:
|
|
if (const_args[2]) {
|
|
if ((args[2] & 0xffff) == args[2])
|
|
tcg_out32 (s, XORI | RS (args[1]) | RA (args[0])
|
|
| (args[2] & 0xffff));
|
|
else if ((args[2] & 0xffff0000) == args[2])
|
|
tcg_out32 (s, XORIS | RS (args[1]) | RA (args[0])
|
|
| ((args[2] >> 16) & 0xffff));
|
|
else {
|
|
tcg_out_movi (s, TCG_TYPE_I32, 0, args[2]);
|
|
tcg_out32 (s, XOR | SAB (args[1], args[0], 0));
|
|
}
|
|
}
|
|
else
|
|
tcg_out32 (s, XOR | SAB (args[1], args[0], args[2]));
|
|
break;
|
|
|
|
case INDEX_op_mul_i32:
|
|
if (const_args[2]) {
|
|
if (args[2] == (int16_t) args[2])
|
|
tcg_out32 (s, MULLI | RT (args[0]) | RA (args[1])
|
|
| (args[2] & 0xffff));
|
|
else {
|
|
tcg_out_movi (s, TCG_TYPE_I32, 0, args[2]);
|
|
tcg_out32 (s, MULLW | TAB (args[0], args[1], 0));
|
|
}
|
|
}
|
|
else
|
|
tcg_out32 (s, MULLW | TAB (args[0], args[1], args[2]));
|
|
break;
|
|
|
|
case INDEX_op_div_i32:
|
|
tcg_out32 (s, DIVW | TAB (args[0], args[1], args[2]));
|
|
break;
|
|
|
|
case INDEX_op_divu_i32:
|
|
tcg_out32 (s, DIVWU | TAB (args[0], args[1], args[2]));
|
|
break;
|
|
|
|
case INDEX_op_rem_i32:
|
|
tcg_out32 (s, DIVW | TAB (0, args[1], args[2]));
|
|
tcg_out32 (s, MULLW | TAB (0, 0, args[2]));
|
|
tcg_out32 (s, SUBF | TAB (args[0], 0, args[1]));
|
|
break;
|
|
|
|
case INDEX_op_remu_i32:
|
|
tcg_out32 (s, DIVWU | TAB (0, args[1], args[2]));
|
|
tcg_out32 (s, MULLW | TAB (0, 0, args[2]));
|
|
tcg_out32 (s, SUBF | TAB (args[0], 0, args[1]));
|
|
break;
|
|
|
|
case INDEX_op_mulu2_i32:
|
|
if (args[0] == args[2] || args[0] == args[3]) {
|
|
tcg_out32 (s, MULLW | TAB (0, args[2], args[3]));
|
|
tcg_out32 (s, MULHWU | TAB (args[1], args[2], args[3]));
|
|
tcg_out_mov (s, args[0], 0);
|
|
}
|
|
else {
|
|
tcg_out32 (s, MULLW | TAB (args[0], args[2], args[3]));
|
|
tcg_out32 (s, MULHWU | TAB (args[1], args[2], args[3]));
|
|
}
|
|
break;
|
|
|
|
case INDEX_op_shl_i32:
|
|
if (const_args[2]) {
|
|
tcg_out32 (s, (RLWINM
|
|
| RA (args[0])
|
|
| RS (args[1])
|
|
| SH (args[2])
|
|
| MB (0)
|
|
| ME (31 - args[2])
|
|
)
|
|
);
|
|
}
|
|
else
|
|
tcg_out32 (s, SLW | SAB (args[1], args[0], args[2]));
|
|
break;
|
|
case INDEX_op_shr_i32:
|
|
if (const_args[2]) {
|
|
tcg_out32 (s, (RLWINM
|
|
| RA (args[0])
|
|
| RS (args[1])
|
|
| SH (32 - args[2])
|
|
| MB (args[2])
|
|
| ME (31)
|
|
)
|
|
);
|
|
}
|
|
else
|
|
tcg_out32 (s, SRW | SAB (args[1], args[0], args[2]));
|
|
break;
|
|
case INDEX_op_sar_i32:
|
|
if (const_args[2])
|
|
tcg_out32 (s, SRAWI | RS (args[1]) | RA (args[0]) | SH (args[2]));
|
|
else
|
|
tcg_out32 (s, SRAW | SAB (args[1], args[0], args[2]));
|
|
break;
|
|
|
|
case INDEX_op_add2_i32:
|
|
if (args[0] == args[3] || args[0] == args[5]) {
|
|
tcg_out32 (s, ADDC | TAB (0, args[2], args[4]));
|
|
tcg_out32 (s, ADDE | TAB (args[1], args[3], args[5]));
|
|
tcg_out_mov (s, args[0], 0);
|
|
}
|
|
else {
|
|
tcg_out32 (s, ADDC | TAB (args[0], args[2], args[4]));
|
|
tcg_out32 (s, ADDE | TAB (args[1], args[3], args[5]));
|
|
}
|
|
break;
|
|
case INDEX_op_sub2_i32:
|
|
if (args[0] == args[3] || args[0] == args[5]) {
|
|
tcg_out32 (s, SUBFC | TAB (0, args[4], args[2]));
|
|
tcg_out32 (s, SUBFE | TAB (args[1], args[5], args[3]));
|
|
tcg_out_mov (s, args[0], 0);
|
|
}
|
|
else {
|
|
tcg_out32 (s, SUBFC | TAB (args[0], args[4], args[2]));
|
|
tcg_out32 (s, SUBFE | TAB (args[1], args[5], args[3]));
|
|
}
|
|
break;
|
|
|
|
case INDEX_op_brcond_i32:
|
|
/*
|
|
args[0] = r0
|
|
args[1] = r1
|
|
args[2] = cond
|
|
args[3] = r1 is const
|
|
args[4] = label_index
|
|
*/
|
|
tcg_out_brcond (s, args[2], args[0], args[1], const_args[1], args[3]);
|
|
break;
|
|
case INDEX_op_brcond2_i32:
|
|
tcg_out_brcond2(s, args, const_args);
|
|
break;
|
|
|
|
case INDEX_op_neg_i32:
|
|
tcg_out32 (s, NEG | RT (args[0]) | RA (args[1]));
|
|
break;
|
|
|
|
case INDEX_op_qemu_ld8u:
|
|
tcg_out_qemu_ld(s, args, 0);
|
|
break;
|
|
case INDEX_op_qemu_ld8s:
|
|
tcg_out_qemu_ld(s, args, 0 | 4);
|
|
break;
|
|
case INDEX_op_qemu_ld16u:
|
|
tcg_out_qemu_ld(s, args, 1);
|
|
break;
|
|
case INDEX_op_qemu_ld16s:
|
|
tcg_out_qemu_ld(s, args, 1 | 4);
|
|
break;
|
|
case INDEX_op_qemu_ld32u:
|
|
tcg_out_qemu_ld(s, args, 2);
|
|
break;
|
|
case INDEX_op_qemu_ld64:
|
|
tcg_out_qemu_ld(s, args, 3);
|
|
break;
|
|
case INDEX_op_qemu_st8:
|
|
tcg_out_qemu_st(s, args, 0);
|
|
break;
|
|
case INDEX_op_qemu_st16:
|
|
tcg_out_qemu_st(s, args, 1);
|
|
break;
|
|
case INDEX_op_qemu_st32:
|
|
tcg_out_qemu_st(s, args, 2);
|
|
break;
|
|
case INDEX_op_qemu_st64:
|
|
tcg_out_qemu_st(s, args, 3);
|
|
break;
|
|
|
|
case INDEX_op_ext8s_i32:
|
|
tcg_out32 (s, EXTSB | RS (args[1]) | RA (args[0]));
|
|
break;
|
|
case INDEX_op_ext16s_i32:
|
|
tcg_out32 (s, EXTSH | RS (args[1]) | RA (args[0]));
|
|
break;
|
|
|
|
default:
|
|
tcg_dump_ops (s, stderr);
|
|
tcg_abort ();
|
|
}
|
|
}
|
|
|
|
static const TCGTargetOpDef ppc_op_defs[] = {
|
|
{ INDEX_op_exit_tb, { } },
|
|
{ INDEX_op_goto_tb, { } },
|
|
{ INDEX_op_call, { "ri" } },
|
|
{ INDEX_op_jmp, { "ri" } },
|
|
{ INDEX_op_br, { } },
|
|
|
|
{ INDEX_op_mov_i32, { "r", "r" } },
|
|
{ INDEX_op_movi_i32, { "r" } },
|
|
{ INDEX_op_ld8u_i32, { "r", "r" } },
|
|
{ INDEX_op_ld8s_i32, { "r", "r" } },
|
|
{ INDEX_op_ld16u_i32, { "r", "r" } },
|
|
{ INDEX_op_ld16s_i32, { "r", "r" } },
|
|
{ INDEX_op_ld_i32, { "r", "r" } },
|
|
{ INDEX_op_st8_i32, { "r", "r" } },
|
|
{ INDEX_op_st16_i32, { "r", "r" } },
|
|
{ INDEX_op_st_i32, { "r", "r" } },
|
|
|
|
{ INDEX_op_add_i32, { "r", "r", "ri" } },
|
|
{ INDEX_op_mul_i32, { "r", "r", "ri" } },
|
|
{ INDEX_op_div_i32, { "r", "r", "r" } },
|
|
{ INDEX_op_divu_i32, { "r", "r", "r" } },
|
|
{ INDEX_op_rem_i32, { "r", "r", "r" } },
|
|
{ INDEX_op_remu_i32, { "r", "r", "r" } },
|
|
{ INDEX_op_mulu2_i32, { "r", "r", "r", "r" } },
|
|
{ INDEX_op_sub_i32, { "r", "r", "ri" } },
|
|
{ INDEX_op_and_i32, { "r", "r", "ri" } },
|
|
{ INDEX_op_or_i32, { "r", "r", "ri" } },
|
|
{ INDEX_op_xor_i32, { "r", "r", "ri" } },
|
|
|
|
{ INDEX_op_shl_i32, { "r", "r", "ri" } },
|
|
{ INDEX_op_shr_i32, { "r", "r", "ri" } },
|
|
{ INDEX_op_sar_i32, { "r", "r", "ri" } },
|
|
|
|
{ INDEX_op_brcond_i32, { "r", "ri" } },
|
|
|
|
{ INDEX_op_add2_i32, { "r", "r", "r", "r", "r", "r" } },
|
|
{ INDEX_op_sub2_i32, { "r", "r", "r", "r", "r", "r" } },
|
|
{ INDEX_op_brcond2_i32, { "r", "r", "r", "r" } },
|
|
|
|
{ INDEX_op_neg_i32, { "r", "r" } },
|
|
|
|
#if TARGET_LONG_BITS == 32
|
|
{ INDEX_op_qemu_ld8u, { "r", "L" } },
|
|
{ INDEX_op_qemu_ld8s, { "r", "L" } },
|
|
{ INDEX_op_qemu_ld16u, { "r", "L" } },
|
|
{ INDEX_op_qemu_ld16s, { "r", "L" } },
|
|
{ INDEX_op_qemu_ld32u, { "r", "L" } },
|
|
{ INDEX_op_qemu_ld32s, { "r", "L" } },
|
|
{ INDEX_op_qemu_ld64, { "r", "r", "L" } },
|
|
|
|
{ INDEX_op_qemu_st8, { "K", "K" } },
|
|
{ INDEX_op_qemu_st16, { "K", "K" } },
|
|
{ INDEX_op_qemu_st32, { "K", "K" } },
|
|
{ INDEX_op_qemu_st64, { "M", "M", "M" } },
|
|
#else
|
|
{ INDEX_op_qemu_ld8u, { "r", "L", "L" } },
|
|
{ INDEX_op_qemu_ld8s, { "r", "L", "L" } },
|
|
{ INDEX_op_qemu_ld16u, { "r", "L", "L" } },
|
|
{ INDEX_op_qemu_ld16s, { "r", "L", "L" } },
|
|
{ INDEX_op_qemu_ld32u, { "r", "L", "L" } },
|
|
{ INDEX_op_qemu_ld32s, { "r", "L", "L" } },
|
|
{ INDEX_op_qemu_ld64, { "r", "L", "L", "L" } },
|
|
|
|
{ INDEX_op_qemu_st8, { "K", "K", "K" } },
|
|
{ INDEX_op_qemu_st16, { "K", "K", "K" } },
|
|
{ INDEX_op_qemu_st32, { "K", "K", "K" } },
|
|
{ INDEX_op_qemu_st64, { "M", "M", "M", "M" } },
|
|
#endif
|
|
|
|
{ INDEX_op_ext8s_i32, { "r", "r" } },
|
|
{ INDEX_op_ext16s_i32, { "r", "r" } },
|
|
|
|
{ -1 },
|
|
};
|
|
|
|
void tcg_target_init(TCGContext *s)
|
|
{
|
|
tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff);
|
|
tcg_regset_set32(tcg_target_call_clobber_regs, 0,
|
|
(1 << TCG_REG_R0) |
|
|
#ifdef __APPLE__
|
|
(1 << TCG_REG_R2) |
|
|
#endif
|
|
(1 << TCG_REG_R3) |
|
|
(1 << TCG_REG_R4) |
|
|
(1 << TCG_REG_R5) |
|
|
(1 << TCG_REG_R6) |
|
|
(1 << TCG_REG_R7) |
|
|
(1 << TCG_REG_R8) |
|
|
(1 << TCG_REG_R9) |
|
|
(1 << TCG_REG_R10) |
|
|
(1 << TCG_REG_R11) |
|
|
(1 << TCG_REG_R12)
|
|
);
|
|
|
|
tcg_regset_clear(s->reserved_regs);
|
|
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R0);
|
|
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R1);
|
|
#ifndef __APPLE__
|
|
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R2);
|
|
#endif
|
|
#ifdef __linux__
|
|
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R13);
|
|
#endif
|
|
#ifdef CONFIG_USE_GUEST_BASE
|
|
tcg_regset_set_reg(s->reserved_regs, TCG_GUEST_BASE_REG);
|
|
#endif
|
|
|
|
tcg_add_target_add_op_defs(ppc_op_defs);
|
|
}
|