root / tcg / ppc / tcg-target.c @ e924c485
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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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static uint8_t *tb_ret_addr;
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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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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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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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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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TCG_REG_R11, |
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TCG_REG_R12, |
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TCG_REG_R13, |
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TCG_REG_R0, |
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TCG_REG_R1, |
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TCG_REG_R2, |
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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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|
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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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|
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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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|
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static const int tcg_target_callee_save_regs[] = { |
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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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}; |
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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 sizeof (tcg_target_call_iarg_regs) / sizeof (tcg_target_call_iarg_regs[0]); |
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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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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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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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|
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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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|
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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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|
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#define LWZU OPCD(33) |
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#define STWU OPCD(37) |
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|
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#define RLWINM OPCD(21) |
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|
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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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|
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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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|
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#define LBZX XO31( 87) |
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#define LHZX XO31(276) |
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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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|
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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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|
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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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|
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#define LMW OPCD(46) |
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#define STMW OPCD(47) |
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|
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#define TW XO31(4) |
337 |
#define TRAP (TW | TO (31)) |
338 |
|
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#define RT(r) ((r)<<21) |
340 |
#define RS(r) ((r)<<21) |
341 |
#define RA(r) ((r)<<16) |
342 |
#define RB(r) ((r)<<11) |
343 |
#define TO(t) ((t)<<21) |
344 |
#define SH(s) ((s)<<11) |
345 |
#define MB(b) ((b)<<6) |
346 |
#define ME(e) ((e)<<1) |
347 |
#define BO(o) ((o)<<21) |
348 |
|
349 |
#define LK 1 |
350 |
|
351 |
#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))
|
353 |
|
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#define BF(n) ((n)<<23) |
355 |
#define BI(n, c) (((c)+((n)*4))<<16) |
356 |
#define BT(n, c) (((c)+((n)*4))<<21) |
357 |
#define BA(n, c) (((c)+((n)*4))<<16) |
358 |
#define BB(n, c) (((c)+((n)*4))<<11) |
359 |
|
360 |
#define BO_COND_TRUE BO (12) |
361 |
#define BO_COND_FALSE BO (4) |
362 |
#define BO_ALWAYS BO (20) |
363 |
|
364 |
enum {
|
365 |
CR_LT, |
366 |
CR_GT, |
367 |
CR_EQ, |
368 |
CR_SO |
369 |
}; |
370 |
|
371 |
static const uint32_t tcg_to_bc[10] = { |
372 |
[TCG_COND_EQ] = BC | BI (7, CR_EQ) | BO_COND_TRUE,
|
373 |
[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,
|
376 |
[TCG_COND_LE] = BC | BI (7, CR_GT) | BO_COND_FALSE,
|
377 |
[TCG_COND_GT] = BC | BI (7, CR_GT) | BO_COND_TRUE,
|
378 |
[TCG_COND_LTU] = BC | BI (7, CR_LT) | BO_COND_TRUE,
|
379 |
[TCG_COND_GEU] = BC | BI (7, CR_LT) | BO_COND_FALSE,
|
380 |
[TCG_COND_LEU] = BC | BI (7, CR_GT) | BO_COND_FALSE,
|
381 |
[TCG_COND_GTU] = BC | BI (7, CR_GT) | BO_COND_TRUE,
|
382 |
}; |
383 |
|
384 |
static void tcg_out_mov(TCGContext *s, int ret, int arg) |
385 |
{ |
386 |
tcg_out32 (s, OR | SAB (arg, ret, arg)); |
387 |
} |
388 |
|
389 |
static void tcg_out_movi(TCGContext *s, TCGType type, |
390 |
int ret, tcg_target_long arg)
|
391 |
{ |
392 |
if (arg == (int16_t) arg)
|
393 |
tcg_out32 (s, ADDI | RT (ret) | RA (0) | (arg & 0xffff)); |
394 |
else {
|
395 |
tcg_out32 (s, ADDIS | RT (ret) | RA (0) | ((arg >> 16) & 0xffff)); |
396 |
if (arg & 0xffff) |
397 |
tcg_out32 (s, ORI | RS (ret) | RA (ret) | (arg & 0xffff));
|
398 |
} |
399 |
} |
400 |
|
401 |
static void tcg_out_ldst (TCGContext *s, int ret, int addr, |
402 |
int offset, int op1, int op2) |
403 |
{ |
404 |
if (offset == (int16_t) offset)
|
405 |
tcg_out32 (s, op1 | RT (ret) | RA (addr) | (offset & 0xffff));
|
406 |
else {
|
407 |
tcg_out_movi (s, TCG_TYPE_I32, 0, offset);
|
408 |
tcg_out32 (s, op2 | RT (ret) | RA (addr) | RB (0));
|
409 |
} |
410 |
} |
411 |
|
412 |
static void tcg_out_b (TCGContext *s, int mask, tcg_target_long target) |
413 |
{ |
414 |
tcg_target_long disp; |
415 |
|
416 |
disp = target - (tcg_target_long) s->code_ptr; |
417 |
if ((disp << 6) >> 6 == disp) |
418 |
tcg_out32 (s, B | (disp & 0x3fffffc) | mask);
|
419 |
else {
|
420 |
tcg_out_movi (s, TCG_TYPE_I32, 0, (tcg_target_long) target);
|
421 |
tcg_out32 (s, MTSPR | RS (0) | CTR);
|
422 |
tcg_out32 (s, BCCTR | BO_ALWAYS | mask); |
423 |
} |
424 |
} |
425 |
|
426 |
#if defined(CONFIG_SOFTMMU)
|
427 |
extern void __ldb_mmu(void); |
428 |
extern void __ldw_mmu(void); |
429 |
extern void __ldl_mmu(void); |
430 |
extern void __ldq_mmu(void); |
431 |
|
432 |
extern void __stb_mmu(void); |
433 |
extern void __stw_mmu(void); |
434 |
extern void __stl_mmu(void); |
435 |
extern void __stq_mmu(void); |
436 |
|
437 |
static void *qemu_ld_helpers[4] = { |
438 |
__ldb_mmu, |
439 |
__ldw_mmu, |
440 |
__ldl_mmu, |
441 |
__ldq_mmu, |
442 |
}; |
443 |
|
444 |
static void *qemu_st_helpers[4] = { |
445 |
__stb_mmu, |
446 |
__stw_mmu, |
447 |
__stl_mmu, |
448 |
__stq_mmu, |
449 |
}; |
450 |
#endif
|
451 |
|
452 |
static void tcg_out_qemu_ld (TCGContext *s, const TCGArg *args, int opc) |
453 |
{ |
454 |
int addr_reg, data_reg, data_reg2, r0, mem_index, s_bits, bswap;
|
455 |
#ifdef CONFIG_SOFTMMU
|
456 |
int r1, r2;
|
457 |
void *label1_ptr, *label2_ptr;
|
458 |
#endif
|
459 |
#if TARGET_LONG_BITS == 64 |
460 |
int addr_reg2;
|
461 |
#endif
|
462 |
|
463 |
data_reg = *args++; |
464 |
if (opc == 3) |
465 |
data_reg2 = *args++; |
466 |
else
|
467 |
data_reg2 = 0;
|
468 |
addr_reg = *args++; |
469 |
#if TARGET_LONG_BITS == 64 |
470 |
addr_reg2 = *args++; |
471 |
#endif
|
472 |
mem_index = *args; |
473 |
s_bits = opc & 3;
|
474 |
|
475 |
#ifdef CONFIG_SOFTMMU
|
476 |
r0 = 3;
|
477 |
r1 = 4;
|
478 |
r2 = 0;
|
479 |
|
480 |
tcg_out32 (s, (RLWINM |
481 |
| RA (r0) |
482 |
| RS (addr_reg) |
483 |
| SH (32 - (TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS))
|
484 |
| MB (32 - (CPU_TLB_BITS + CPU_TLB_ENTRY_BITS))
|
485 |
| ME (31 - CPU_TLB_ENTRY_BITS)
|
486 |
) |
487 |
); |
488 |
tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (TCG_AREG0)); |
489 |
tcg_out32 (s, (LWZU |
490 |
| RT (r1) |
491 |
| RA (r0) |
492 |
| offsetof (CPUState, tlb_table[mem_index][0].addr_read)
|
493 |
) |
494 |
); |
495 |
tcg_out32 (s, (RLWINM |
496 |
| RA (r2) |
497 |
| RS (addr_reg) |
498 |
| SH (0)
|
499 |
| MB ((32 - s_bits) & 31) |
500 |
| ME (31 - TARGET_PAGE_BITS)
|
501 |
) |
502 |
); |
503 |
|
504 |
tcg_out32 (s, CMP | BF (7) | RA (r2) | RB (r1));
|
505 |
#if TARGET_LONG_BITS == 64 |
506 |
tcg_out32 (s, LWZ | RT (r1) | RA (r0) | 4);
|
507 |
tcg_out32 (s, CMP | BF (6) | RA (addr_reg2) | RB (r1));
|
508 |
tcg_out32 (s, CRAND | BT (7, CR_EQ) | BA (6, CR_EQ) | BB (7, CR_EQ)); |
509 |
#endif
|
510 |
|
511 |
label1_ptr = s->code_ptr; |
512 |
#ifdef FAST_PATH
|
513 |
tcg_out32 (s, BC | BI (7, CR_EQ) | BO_COND_TRUE);
|
514 |
#endif
|
515 |
|
516 |
/* slow path */
|
517 |
#if TARGET_LONG_BITS == 32 |
518 |
tcg_out_mov (s, 3, addr_reg);
|
519 |
tcg_out_movi (s, TCG_TYPE_I32, 4, mem_index);
|
520 |
#else
|
521 |
tcg_out_mov (s, 3, addr_reg2);
|
522 |
tcg_out_mov (s, 4, addr_reg);
|
523 |
tcg_out_movi (s, TCG_TYPE_I32, 5, mem_index);
|
524 |
#endif
|
525 |
|
526 |
tcg_out_b (s, LK, (tcg_target_long) qemu_ld_helpers[s_bits]); |
527 |
switch (opc) {
|
528 |
case 0|4: |
529 |
tcg_out32 (s, EXTSB | RA (data_reg) | RS (3));
|
530 |
break;
|
531 |
case 1|4: |
532 |
tcg_out32 (s, EXTSH | RA (data_reg) | RS (3));
|
533 |
break;
|
534 |
case 0: |
535 |
case 1: |
536 |
case 2: |
537 |
if (data_reg != 3) |
538 |
tcg_out_mov (s, data_reg, 3);
|
539 |
break;
|
540 |
case 3: |
541 |
if (data_reg == 3) { |
542 |
if (data_reg2 == 4) { |
543 |
tcg_out_mov (s, 0, 4); |
544 |
tcg_out_mov (s, 4, 3); |
545 |
tcg_out_mov (s, 3, 0); |
546 |
} |
547 |
else {
|
548 |
tcg_out_mov (s, data_reg2, 3);
|
549 |
tcg_out_mov (s, 3, 4); |
550 |
} |
551 |
} |
552 |
else {
|
553 |
if (data_reg != 4) tcg_out_mov (s, data_reg, 4); |
554 |
if (data_reg2 != 3) tcg_out_mov (s, data_reg2, 3); |
555 |
} |
556 |
break;
|
557 |
} |
558 |
label2_ptr = s->code_ptr; |
559 |
tcg_out32 (s, B); |
560 |
|
561 |
/* label1: fast path */
|
562 |
#ifdef FAST_PATH
|
563 |
reloc_pc14 (label1_ptr, (tcg_target_long) s->code_ptr); |
564 |
#endif
|
565 |
|
566 |
/* r0 now contains &env->tlb_table[mem_index][index].addr_read */
|
567 |
tcg_out32 (s, (LWZ |
568 |
| RT (r0) |
569 |
| RA (r0) |
570 |
| (ADDEND_OFFSET + offsetof (CPUTLBEntry, addend) |
571 |
- offsetof (CPUTLBEntry, addr_read)) |
572 |
)); |
573 |
/* r0 = env->tlb_table[mem_index][index].addend */
|
574 |
tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (addr_reg)); |
575 |
/* r0 = env->tlb_table[mem_index][index].addend + addr */
|
576 |
|
577 |
#else /* !CONFIG_SOFTMMU */ |
578 |
r0 = addr_reg; |
579 |
#endif
|
580 |
|
581 |
#ifdef TARGET_WORDS_BIGENDIAN
|
582 |
bswap = 0;
|
583 |
#else
|
584 |
bswap = 1;
|
585 |
#endif
|
586 |
switch (opc) {
|
587 |
default:
|
588 |
case 0: |
589 |
tcg_out32 (s, LBZ | RT (data_reg) | RA (r0)); |
590 |
break;
|
591 |
case 0|4: |
592 |
tcg_out32 (s, LBZ | RT (data_reg) | RA (r0)); |
593 |
tcg_out32 (s, EXTSB | RA (data_reg) | RS (data_reg)); |
594 |
break;
|
595 |
case 1: |
596 |
if (bswap) tcg_out32 (s, LHBRX | RT (data_reg) | RB (r0));
|
597 |
else tcg_out32 (s, LHZ | RT (data_reg) | RA (r0));
|
598 |
break;
|
599 |
case 1|4: |
600 |
if (bswap) {
|
601 |
tcg_out32 (s, LHBRX | RT (data_reg) | RB (r0)); |
602 |
tcg_out32 (s, EXTSH | RA (data_reg) | RS (data_reg)); |
603 |
} |
604 |
else tcg_out32 (s, LHA | RT (data_reg) | RA (r0));
|
605 |
break;
|
606 |
case 2: |
607 |
if (bswap) tcg_out32 (s, LWBRX | RT (data_reg) | RB (r0));
|
608 |
else tcg_out32 (s, LWZ | RT (data_reg)| RA (r0));
|
609 |
break;
|
610 |
case 3: |
611 |
if (bswap) {
|
612 |
if (r0 == data_reg) {
|
613 |
tcg_out32 (s, LWBRX | RT (0) | RB (r0));
|
614 |
tcg_out32 (s, ADDI | RT (r0) | RA (r0) | 4);
|
615 |
tcg_out32 (s, LWBRX | RT (data_reg2) | RB (r0)); |
616 |
tcg_out_mov (s, data_reg, 0);
|
617 |
} |
618 |
else {
|
619 |
tcg_out32 (s, LWBRX | RT (data_reg) | RB (r0)); |
620 |
tcg_out32 (s, ADDI | RT (r0) | RA (r0) | 4);
|
621 |
tcg_out32 (s, LWBRX | RT (data_reg2) | RB (r0)); |
622 |
} |
623 |
} |
624 |
else {
|
625 |
if (r0 == data_reg2) {
|
626 |
tcg_out32 (s, LWZ | RT (0) | RA (r0));
|
627 |
tcg_out32 (s, LWZ | RT (data_reg) | RA (r0) | 4);
|
628 |
tcg_out_mov (s, data_reg2, 0);
|
629 |
} |
630 |
else {
|
631 |
tcg_out32 (s, LWZ | RT (data_reg2) | RA (r0)); |
632 |
tcg_out32 (s, LWZ | RT (data_reg) | RA (r0) | 4);
|
633 |
} |
634 |
} |
635 |
break;
|
636 |
} |
637 |
|
638 |
#ifdef CONFIG_SOFTMMU
|
639 |
reloc_pc24 (label2_ptr, (tcg_target_long) s->code_ptr); |
640 |
#endif
|
641 |
} |
642 |
|
643 |
static void tcg_out_qemu_st (TCGContext *s, const TCGArg *args, int opc) |
644 |
{ |
645 |
int addr_reg, r0, r1, data_reg, data_reg2, mem_index, bswap;
|
646 |
#ifdef CONFIG_SOFTMMU
|
647 |
int r2, ir;
|
648 |
void *label1_ptr, *label2_ptr;
|
649 |
#endif
|
650 |
#if TARGET_LONG_BITS == 64 |
651 |
int addr_reg2;
|
652 |
#endif
|
653 |
|
654 |
data_reg = *args++; |
655 |
if (opc == 3) |
656 |
data_reg2 = *args++; |
657 |
else
|
658 |
data_reg2 = 0;
|
659 |
addr_reg = *args++; |
660 |
#if TARGET_LONG_BITS == 64 |
661 |
addr_reg2 = *args++; |
662 |
#endif
|
663 |
mem_index = *args; |
664 |
|
665 |
#ifdef CONFIG_SOFTMMU
|
666 |
r0 = 3;
|
667 |
r1 = 4;
|
668 |
r2 = 0;
|
669 |
|
670 |
tcg_out32 (s, (RLWINM |
671 |
| RA (r0) |
672 |
| RS (addr_reg) |
673 |
| SH (32 - (TARGET_PAGE_BITS - CPU_TLB_ENTRY_BITS))
|
674 |
| MB (32 - (CPU_TLB_ENTRY_BITS + CPU_TLB_BITS))
|
675 |
| ME (31 - CPU_TLB_ENTRY_BITS)
|
676 |
) |
677 |
); |
678 |
tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (TCG_AREG0)); |
679 |
tcg_out32 (s, (LWZU |
680 |
| RT (r1) |
681 |
| RA (r0) |
682 |
| offsetof (CPUState, tlb_table[mem_index][0].addr_write)
|
683 |
) |
684 |
); |
685 |
tcg_out32 (s, (RLWINM |
686 |
| RA (r2) |
687 |
| RS (addr_reg) |
688 |
| SH (0)
|
689 |
| MB ((32 - opc) & 31) |
690 |
| ME (31 - TARGET_PAGE_BITS)
|
691 |
) |
692 |
); |
693 |
|
694 |
tcg_out32 (s, CMP | (7 << 23) | RA (r2) | RB (r1)); |
695 |
#if TARGET_LONG_BITS == 64 |
696 |
tcg_out32 (s, LWZ | RT (r1) | RA (r0) | 4);
|
697 |
tcg_out32 (s, CMP | BF (6) | RA (addr_reg2) | RB (r1));
|
698 |
tcg_out32 (s, CRAND | BT (7, CR_EQ) | BA (6, CR_EQ) | BB (7, CR_EQ)); |
699 |
#endif
|
700 |
|
701 |
label1_ptr = s->code_ptr; |
702 |
#ifdef FAST_PATH
|
703 |
tcg_out32 (s, BC | BI (7, CR_EQ) | BO_COND_TRUE);
|
704 |
#endif
|
705 |
|
706 |
/* slow path */
|
707 |
#if TARGET_LONG_BITS == 32 |
708 |
tcg_out_mov (s, 3, addr_reg);
|
709 |
ir = 4;
|
710 |
#else
|
711 |
tcg_out_mov (s, 3, addr_reg2);
|
712 |
tcg_out_mov (s, 4, addr_reg);
|
713 |
ir = 5;
|
714 |
#endif
|
715 |
|
716 |
switch (opc) {
|
717 |
case 0: |
718 |
tcg_out32 (s, (RLWINM |
719 |
| RA (ir) |
720 |
| RS (data_reg) |
721 |
| SH (0)
|
722 |
| MB (24)
|
723 |
| ME (31)));
|
724 |
break;
|
725 |
case 1: |
726 |
tcg_out32 (s, (RLWINM |
727 |
| RA (ir) |
728 |
| RS (data_reg) |
729 |
| SH (0)
|
730 |
| MB (16)
|
731 |
| ME (31)));
|
732 |
break;
|
733 |
case 2: |
734 |
tcg_out_mov (s, ir, data_reg); |
735 |
break;
|
736 |
case 3: |
737 |
tcg_out_mov (s, 5, data_reg2);
|
738 |
tcg_out_mov (s, 6, data_reg);
|
739 |
ir = 6;
|
740 |
break;
|
741 |
} |
742 |
ir++; |
743 |
|
744 |
tcg_out_movi (s, TCG_TYPE_I32, ir, mem_index); |
745 |
tcg_out_b (s, LK, (tcg_target_long) qemu_st_helpers[opc]); |
746 |
label2_ptr = s->code_ptr; |
747 |
tcg_out32 (s, B); |
748 |
|
749 |
/* label1: fast path */
|
750 |
#ifdef FAST_PATH
|
751 |
reloc_pc14 (label1_ptr, (tcg_target_long) s->code_ptr); |
752 |
#endif
|
753 |
|
754 |
tcg_out32 (s, (LWZ |
755 |
| RT (r0) |
756 |
| RA (r0) |
757 |
| (ADDEND_OFFSET + offsetof (CPUTLBEntry, addend) |
758 |
- offsetof (CPUTLBEntry, addr_write)) |
759 |
)); |
760 |
/* r0 = env->tlb_table[mem_index][index].addend */
|
761 |
tcg_out32 (s, ADD | RT (r0) | RA (r0) | RB (addr_reg)); |
762 |
/* r0 = env->tlb_table[mem_index][index].addend + addr */
|
763 |
|
764 |
#else /* !CONFIG_SOFTMMU */ |
765 |
r1 = 4;
|
766 |
r0 = addr_reg; |
767 |
#endif
|
768 |
|
769 |
#ifdef TARGET_WORDS_BIGENDIAN
|
770 |
bswap = 0;
|
771 |
#else
|
772 |
bswap = 1;
|
773 |
#endif
|
774 |
switch (opc) {
|
775 |
case 0: |
776 |
tcg_out32 (s, STB | RS (data_reg) | RA (r0)); |
777 |
break;
|
778 |
case 1: |
779 |
if (bswap) tcg_out32 (s, STHBRX | RS (data_reg) | RA (0) | RB (r0)); |
780 |
else tcg_out32 (s, STH | RS (data_reg) | RA (r0));
|
781 |
break;
|
782 |
case 2: |
783 |
if (bswap) tcg_out32 (s, STWBRX | RS (data_reg) | RA (0) | RB (r0)); |
784 |
else tcg_out32 (s, STW | RS (data_reg) | RA (r0));
|
785 |
break;
|
786 |
case 3: |
787 |
if (bswap) {
|
788 |
tcg_out32 (s, ADDI | RT (r1) | RA (r0) | 4);
|
789 |
tcg_out32 (s, STWBRX | RS (data_reg) | RA (0) | RB (r0));
|
790 |
tcg_out32 (s, STWBRX | RS (data_reg2) | RA (0) | RB (r1));
|
791 |
} |
792 |
else {
|
793 |
tcg_out32 (s, STW | RS (data_reg2) | RA (r0)); |
794 |
tcg_out32 (s, STW | RS (data_reg) | RA (r0) | 4);
|
795 |
} |
796 |
break;
|
797 |
} |
798 |
|
799 |
#ifdef CONFIG_SOFTMMU
|
800 |
reloc_pc24 (label2_ptr, (tcg_target_long) s->code_ptr); |
801 |
#endif
|
802 |
} |
803 |
|
804 |
void tcg_target_qemu_prologue (TCGContext *s)
|
805 |
{ |
806 |
int i, frame_size;
|
807 |
|
808 |
frame_size = 0
|
809 |
+ 4 /* back chain */ |
810 |
+ 4 /* LR */ |
811 |
+ TCG_STATIC_CALL_ARGS_SIZE |
812 |
+ ARRAY_SIZE (tcg_target_callee_save_regs) * 4
|
813 |
; |
814 |
frame_size = (frame_size + 15) & ~15; |
815 |
|
816 |
tcg_out32 (s, MFSPR | RT (0) | LR);
|
817 |
tcg_out32 (s, STWU | RS (1) | RA (1) | (-frame_size & 0xffff)); |
818 |
for (i = 0; i < ARRAY_SIZE (tcg_target_callee_save_regs); ++i) |
819 |
tcg_out32 (s, (STW |
820 |
| RS (tcg_target_callee_save_regs[i]) |
821 |
| RA (1)
|
822 |
| (i * 4 + 8 + TCG_STATIC_CALL_ARGS_SIZE) |
823 |
) |
824 |
); |
825 |
tcg_out32 (s, STW | RS (0) | RA (1) | (frame_size + 4)); |
826 |
|
827 |
tcg_out32 (s, MTSPR | RS (3) | CTR);
|
828 |
tcg_out32 (s, BCCTR | BO_ALWAYS); |
829 |
tb_ret_addr = s->code_ptr; |
830 |
|
831 |
for (i = 0; i < ARRAY_SIZE (tcg_target_callee_save_regs); ++i) |
832 |
tcg_out32 (s, (LWZ |
833 |
| RT (tcg_target_callee_save_regs[i]) |
834 |
| RA (1)
|
835 |
| (i * 4 + 8 + TCG_STATIC_CALL_ARGS_SIZE) |
836 |
) |
837 |
); |
838 |
tcg_out32 (s, LWZ | RT (0) | RA (1) | (frame_size + 4)); |
839 |
tcg_out32 (s, MTSPR | RS (0) | LR);
|
840 |
tcg_out32 (s, ADDI | RT (1) | RA (1) | frame_size); |
841 |
tcg_out32 (s, BCLR | BO_ALWAYS); |
842 |
} |
843 |
|
844 |
static void tcg_out_ld (TCGContext *s, TCGType type, int ret, int arg1, |
845 |
tcg_target_long arg2) |
846 |
{ |
847 |
tcg_out_ldst (s, ret, arg1, arg2, LWZ, LWZX); |
848 |
} |
849 |
|
850 |
static void tcg_out_st (TCGContext *s, TCGType type, int arg, int arg1, |
851 |
tcg_target_long arg2) |
852 |
{ |
853 |
tcg_out_ldst (s, arg, arg1, arg2, STW, STWX); |
854 |
} |
855 |
|
856 |
static void ppc_addi (TCGContext *s, int rt, int ra, tcg_target_long si) |
857 |
{ |
858 |
if (!si && rt == ra)
|
859 |
return;
|
860 |
|
861 |
if (si == (int16_t) si)
|
862 |
tcg_out32 (s, ADDI | RT (rt) | RA (ra) | (si & 0xffff));
|
863 |
else {
|
864 |
uint16_t h = ((si >> 16) & 0xffff) + ((uint16_t) si >> 15); |
865 |
tcg_out32 (s, ADDIS | RT (rt) | RA (ra) | h); |
866 |
tcg_out32 (s, ADDI | RT (rt) | RA (rt) | (si & 0xffff));
|
867 |
} |
868 |
} |
869 |
|
870 |
static void tcg_out_addi(TCGContext *s, int reg, tcg_target_long val) |
871 |
{ |
872 |
ppc_addi (s, reg, reg, val); |
873 |
} |
874 |
|
875 |
static void tcg_out_cmp (TCGContext *s, int cond, TCGArg arg1, TCGArg arg2, |
876 |
int const_arg2, int cr) |
877 |
{ |
878 |
int imm;
|
879 |
uint32_t op; |
880 |
|
881 |
switch (cond) {
|
882 |
case TCG_COND_EQ:
|
883 |
case TCG_COND_NE:
|
884 |
if (const_arg2) {
|
885 |
if ((int16_t) arg2 == arg2) {
|
886 |
op = CMPI; |
887 |
imm = 1;
|
888 |
break;
|
889 |
} |
890 |
else if ((uint16_t) arg2 == arg2) { |
891 |
op = CMPLI; |
892 |
imm = 1;
|
893 |
break;
|
894 |
} |
895 |
} |
896 |
op = CMPL; |
897 |
imm = 0;
|
898 |
break;
|
899 |
|
900 |
case TCG_COND_LT:
|
901 |
case TCG_COND_GE:
|
902 |
case TCG_COND_LE:
|
903 |
case TCG_COND_GT:
|
904 |
if (const_arg2) {
|
905 |
if ((int16_t) arg2 == arg2) {
|
906 |
op = CMPI; |
907 |
imm = 1;
|
908 |
break;
|
909 |
} |
910 |
} |
911 |
op = CMP; |
912 |
imm = 0;
|
913 |
break;
|
914 |
|
915 |
case TCG_COND_LTU:
|
916 |
case TCG_COND_GEU:
|
917 |
case TCG_COND_LEU:
|
918 |
case TCG_COND_GTU:
|
919 |
if (const_arg2) {
|
920 |
if ((uint16_t) arg2 == arg2) {
|
921 |
op = CMPLI; |
922 |
imm = 1;
|
923 |
break;
|
924 |
} |
925 |
} |
926 |
op = CMPL; |
927 |
imm = 0;
|
928 |
break;
|
929 |
|
930 |
default:
|
931 |
tcg_abort (); |
932 |
} |
933 |
op |= BF (cr); |
934 |
|
935 |
if (imm)
|
936 |
tcg_out32 (s, op | RA (arg1) | (arg2 & 0xffff));
|
937 |
else {
|
938 |
if (const_arg2) {
|
939 |
tcg_out_movi (s, TCG_TYPE_I32, 0, arg2);
|
940 |
tcg_out32 (s, op | RA (arg1) | RB (0));
|
941 |
} |
942 |
else
|
943 |
tcg_out32 (s, op | RA (arg1) | RB (arg2)); |
944 |
} |
945 |
|
946 |
} |
947 |
|
948 |
static void tcg_out_bc (TCGContext *s, int bc, int label_index) |
949 |
{ |
950 |
TCGLabel *l = &s->labels[label_index]; |
951 |
|
952 |
if (l->has_value)
|
953 |
tcg_out32 (s, bc | reloc_pc14_val (s->code_ptr, l->u.value)); |
954 |
else {
|
955 |
uint16_t val = *(uint16_t *) &s->code_ptr[2];
|
956 |
|
957 |
/* Thanks to Andrzej Zaborowski */
|
958 |
tcg_out32 (s, bc | (val & 0xfffc));
|
959 |
tcg_out_reloc (s, s->code_ptr - 4, R_PPC_REL14, label_index, 0); |
960 |
} |
961 |
} |
962 |
|
963 |
static void tcg_out_brcond (TCGContext *s, int cond, |
964 |
TCGArg arg1, TCGArg arg2, int const_arg2,
|
965 |
int label_index)
|
966 |
{ |
967 |
tcg_out_cmp (s, cond, arg1, arg2, const_arg2, 7);
|
968 |
tcg_out_bc (s, tcg_to_bc[cond], label_index); |
969 |
} |
970 |
|
971 |
/* XXX: we implement it at the target level to avoid having to
|
972 |
handle cross basic blocks temporaries */
|
973 |
static void tcg_out_brcond2 (TCGContext *s, const TCGArg *args, |
974 |
const int *const_args) |
975 |
{ |
976 |
int cond = args[4], label_index = args[5], op; |
977 |
struct { int bit1; int bit2; int cond2; } bits[] = { |
978 |
[TCG_COND_LT ] = { CR_LT, CR_LT, TCG_COND_LT }, |
979 |
[TCG_COND_LE ] = { CR_LT, CR_GT, TCG_COND_LT }, |
980 |
[TCG_COND_GT ] = { CR_GT, CR_GT, TCG_COND_GT }, |
981 |
[TCG_COND_GE ] = { CR_GT, CR_LT, TCG_COND_GT }, |
982 |
[TCG_COND_LTU] = { CR_LT, CR_LT, TCG_COND_LTU }, |
983 |
[TCG_COND_LEU] = { CR_LT, CR_GT, TCG_COND_LTU }, |
984 |
[TCG_COND_GTU] = { CR_GT, CR_GT, TCG_COND_GTU }, |
985 |
[TCG_COND_GEU] = { CR_GT, CR_LT, TCG_COND_GTU }, |
986 |
}, *b = &bits[cond]; |
987 |
|
988 |
switch (cond) {
|
989 |
case TCG_COND_EQ:
|
990 |
case TCG_COND_NE:
|
991 |
op = (cond == TCG_COND_EQ) ? CRAND : CRNAND; |
992 |
tcg_out_cmp (s, cond, args[0], args[2], const_args[2], 6); |
993 |
tcg_out_cmp (s, cond, args[1], args[3], const_args[3], 7); |
994 |
tcg_out32 (s, op | BT (7, CR_EQ) | BA (6, CR_EQ) | BB (7, CR_EQ)); |
995 |
break;
|
996 |
case TCG_COND_LT:
|
997 |
case TCG_COND_LE:
|
998 |
case TCG_COND_GT:
|
999 |
case TCG_COND_GE:
|
1000 |
case TCG_COND_LTU:
|
1001 |
case TCG_COND_LEU:
|
1002 |
case TCG_COND_GTU:
|
1003 |
case TCG_COND_GEU:
|
1004 |
op = (b->bit1 != b->bit2) ? CRANDC : CRAND; |
1005 |
tcg_out_cmp (s, b->cond2, args[1], args[3], const_args[3], 5); |
1006 |
tcg_out_cmp (s, TCG_COND_EQ, args[1], args[3], const_args[3], 6); |
1007 |
tcg_out_cmp (s, cond, args[0], args[2], const_args[2], 7); |
1008 |
tcg_out32 (s, op | BT (7, CR_EQ) | BA (6, CR_EQ) | BB (7, b->bit2)); |
1009 |
tcg_out32 (s, CROR | BT (7, CR_EQ) | BA (5, b->bit1) | BB (7, CR_EQ)); |
1010 |
break;
|
1011 |
default:
|
1012 |
tcg_abort(); |
1013 |
} |
1014 |
|
1015 |
tcg_out_bc (s, (BC | BI (7, CR_EQ) | BO_COND_TRUE), label_index);
|
1016 |
} |
1017 |
|
1018 |
static void tcg_out_op(TCGContext *s, int opc, const TCGArg *args, |
1019 |
const int *const_args) |
1020 |
{ |
1021 |
switch (opc) {
|
1022 |
case INDEX_op_exit_tb:
|
1023 |
tcg_out_movi (s, TCG_TYPE_I32, TCG_REG_R3, args[0]);
|
1024 |
tcg_out_b (s, 0, (tcg_target_long) tb_ret_addr);
|
1025 |
break;
|
1026 |
case INDEX_op_goto_tb:
|
1027 |
if (s->tb_jmp_offset) {
|
1028 |
/* direct jump method */
|
1029 |
|
1030 |
s->tb_jmp_offset[args[0]] = s->code_ptr - s->code_buf;
|
1031 |
s->code_ptr += 16;
|
1032 |
} |
1033 |
else {
|
1034 |
tcg_abort (); |
1035 |
} |
1036 |
s->tb_next_offset[args[0]] = s->code_ptr - s->code_buf;
|
1037 |
break;
|
1038 |
case INDEX_op_br:
|
1039 |
{ |
1040 |
TCGLabel *l = &s->labels[args[0]];
|
1041 |
|
1042 |
if (l->has_value) {
|
1043 |
tcg_out_b (s, 0, l->u.value);
|
1044 |
} |
1045 |
else {
|
1046 |
uint32_t val = *(uint32_t *) s->code_ptr; |
1047 |
|
1048 |
/* Thanks to Andrzej Zaborowski */
|
1049 |
tcg_out32 (s, B | (val & 0x3fffffc));
|
1050 |
tcg_out_reloc (s, s->code_ptr - 4, R_PPC_REL24, args[0], 0); |
1051 |
} |
1052 |
} |
1053 |
break;
|
1054 |
case INDEX_op_call:
|
1055 |
if (const_args[0]) { |
1056 |
tcg_out_b (s, LK, args[0]);
|
1057 |
} |
1058 |
else {
|
1059 |
tcg_out32 (s, MTSPR | RS (args[0]) | LR);
|
1060 |
tcg_out32 (s, BCLR | BO_ALWAYS | LK); |
1061 |
} |
1062 |
break;
|
1063 |
case INDEX_op_jmp:
|
1064 |
if (const_args[0]) { |
1065 |
tcg_out_b (s, 0, args[0]); |
1066 |
} |
1067 |
else {
|
1068 |
tcg_out32 (s, MTSPR | RS (args[0]) | CTR);
|
1069 |
tcg_out32 (s, BCCTR | BO_ALWAYS); |
1070 |
} |
1071 |
break;
|
1072 |
case INDEX_op_movi_i32:
|
1073 |
tcg_out_movi(s, TCG_TYPE_I32, args[0], args[1]); |
1074 |
break;
|
1075 |
case INDEX_op_ld8u_i32:
|
1076 |
tcg_out_ldst (s, args[0], args[1], args[2], LBZ, LBZX); |
1077 |
break;
|
1078 |
case INDEX_op_ld8s_i32:
|
1079 |
tcg_out_ldst (s, args[0], args[1], args[2], LBZ, LBZX); |
1080 |
tcg_out32 (s, EXTSB | RS (args[0]) | RA (args[0])); |
1081 |
break;
|
1082 |
case INDEX_op_ld16u_i32:
|
1083 |
tcg_out_ldst (s, args[0], args[1], args[2], LHZ, LHZX); |
1084 |
break;
|
1085 |
case INDEX_op_ld16s_i32:
|
1086 |
tcg_out_ldst (s, args[0], args[1], args[2], LHA, LHAX); |
1087 |
break;
|
1088 |
case INDEX_op_ld_i32:
|
1089 |
tcg_out_ldst (s, args[0], args[1], args[2], LWZ, LWZX); |
1090 |
break;
|
1091 |
case INDEX_op_st8_i32:
|
1092 |
tcg_out_ldst (s, args[0], args[1], args[2], STB, STBX); |
1093 |
break;
|
1094 |
case INDEX_op_st16_i32:
|
1095 |
tcg_out_ldst (s, args[0], args[1], args[2], STH, STHX); |
1096 |
break;
|
1097 |
case INDEX_op_st_i32:
|
1098 |
tcg_out_ldst (s, args[0], args[1], args[2], STW, STWX); |
1099 |
break;
|
1100 |
|
1101 |
case INDEX_op_add_i32:
|
1102 |
if (const_args[2]) |
1103 |
ppc_addi (s, args[0], args[1], args[2]); |
1104 |
else
|
1105 |
tcg_out32 (s, ADD | TAB (args[0], args[1], args[2])); |
1106 |
break;
|
1107 |
case INDEX_op_sub_i32:
|
1108 |
if (const_args[2]) |
1109 |
ppc_addi (s, args[0], args[1], -args[2]); |
1110 |
else
|
1111 |
tcg_out32 (s, SUBF | TAB (args[0], args[2], args[1])); |
1112 |
break;
|
1113 |
|
1114 |
case INDEX_op_and_i32:
|
1115 |
if (const_args[2]) { |
1116 |
if (!args[2]) |
1117 |
tcg_out_movi (s, TCG_TYPE_I32, args[0], 0); |
1118 |
else {
|
1119 |
if ((args[2] & 0xffff) == args[2]) |
1120 |
tcg_out32 (s, ANDI | RS (args[1]) | RA (args[0]) | args[2]); |
1121 |
else if ((args[2] & 0xffff0000) == args[2]) |
1122 |
tcg_out32 (s, ANDIS | RS (args[1]) | RA (args[0]) |
1123 |
| ((args[2] >> 16) & 0xffff)); |
1124 |
else if (args[2] == 0xffffffff) { |
1125 |
if (args[0] != args[1]) |
1126 |
tcg_out_mov (s, args[0], args[1]); |
1127 |
} |
1128 |
else {
|
1129 |
tcg_out_movi (s, TCG_TYPE_I32, 0, args[2]); |
1130 |
tcg_out32 (s, AND | SAB (args[1], args[0], 0)); |
1131 |
} |
1132 |
} |
1133 |
} |
1134 |
else
|
1135 |
tcg_out32 (s, AND | SAB (args[1], args[0], args[2])); |
1136 |
break;
|
1137 |
case INDEX_op_or_i32:
|
1138 |
if (const_args[2]) { |
1139 |
if (args[2]) { |
1140 |
if (args[2] & 0xffff) { |
1141 |
tcg_out32 (s, ORI | RS (args[1]) | RA (args[0]) |
1142 |
| (args[2] & 0xffff)); |
1143 |
if (args[2] >> 16) |
1144 |
tcg_out32 (s, ORIS | RS (args[0]) | RA (args[0]) |
1145 |
| ((args[2] >> 16) & 0xffff)); |
1146 |
} |
1147 |
else {
|
1148 |
tcg_out32 (s, ORIS | RS (args[1]) | RA (args[0]) |
1149 |
| ((args[2] >> 16) & 0xffff)); |
1150 |
} |
1151 |
} |
1152 |
else {
|
1153 |
if (args[0] != args[1]) |
1154 |
tcg_out_mov (s, args[0], args[1]); |
1155 |
} |
1156 |
} |
1157 |
else
|
1158 |
tcg_out32 (s, OR | SAB (args[1], args[0], args[2])); |
1159 |
break;
|
1160 |
case INDEX_op_xor_i32:
|
1161 |
if (const_args[2]) { |
1162 |
if (args[2]) { |
1163 |
if ((args[2] & 0xffff) == args[2]) |
1164 |
tcg_out32 (s, XORI | RS (args[1]) | RA (args[0]) |
1165 |
| (args[2] & 0xffff)); |
1166 |
else if ((args[2] & 0xffff0000) == args[2]) |
1167 |
tcg_out32 (s, XORIS | RS (args[1]) | RA (args[0]) |
1168 |
| ((args[2] >> 16) & 0xffff)); |
1169 |
else {
|
1170 |
tcg_out_movi (s, TCG_TYPE_I32, 0, args[2]); |
1171 |
tcg_out32 (s, XOR | SAB (args[1], args[0], 0)); |
1172 |
} |
1173 |
} |
1174 |
else {
|
1175 |
if (args[0] != args[1]) |
1176 |
tcg_out_mov (s, args[0], args[1]); |
1177 |
} |
1178 |
} |
1179 |
else
|
1180 |
tcg_out32 (s, XOR | SAB (args[1], args[0], args[2])); |
1181 |
break;
|
1182 |
|
1183 |
case INDEX_op_mul_i32:
|
1184 |
if (const_args[2]) { |
1185 |
if (args[2] == (int16_t) args[2]) |
1186 |
tcg_out32 (s, MULLI | RT (args[0]) | RA (args[1]) |
1187 |
| (args[2] & 0xffff)); |
1188 |
else {
|
1189 |
tcg_out_movi (s, TCG_TYPE_I32, 0, args[2]); |
1190 |
tcg_out32 (s, MULLW | TAB (args[0], args[1], 0)); |
1191 |
} |
1192 |
} |
1193 |
else
|
1194 |
tcg_out32 (s, MULLW | TAB (args[0], args[1], args[2])); |
1195 |
break;
|
1196 |
|
1197 |
case INDEX_op_div_i32:
|
1198 |
tcg_out32 (s, DIVW | TAB (args[0], args[1], args[2])); |
1199 |
break;
|
1200 |
|
1201 |
case INDEX_op_divu_i32:
|
1202 |
tcg_out32 (s, DIVWU | TAB (args[0], args[1], args[2])); |
1203 |
break;
|
1204 |
|
1205 |
case INDEX_op_rem_i32:
|
1206 |
tcg_out32 (s, DIVW | TAB (0, args[1], args[2])); |
1207 |
tcg_out32 (s, MULLW | TAB (0, 0, args[2])); |
1208 |
tcg_out32 (s, SUBF | TAB (args[0], 0, args[1])); |
1209 |
break;
|
1210 |
|
1211 |
case INDEX_op_remu_i32:
|
1212 |
tcg_out32 (s, DIVWU | TAB (0, args[1], args[2])); |
1213 |
tcg_out32 (s, MULLW | TAB (0, 0, args[2])); |
1214 |
tcg_out32 (s, SUBF | TAB (args[0], 0, args[1])); |
1215 |
break;
|
1216 |
|
1217 |
case INDEX_op_mulu2_i32:
|
1218 |
if (args[0] == args[2] || args[0] == args[3]) { |
1219 |
tcg_out32 (s, MULLW | TAB (0, args[2], args[3])); |
1220 |
tcg_out32 (s, MULHWU | TAB (args[1], args[2], args[3])); |
1221 |
tcg_out_mov (s, args[0], 0); |
1222 |
} |
1223 |
else {
|
1224 |
tcg_out32 (s, MULLW | TAB (args[0], args[2], args[3])); |
1225 |
tcg_out32 (s, MULHWU | TAB (args[1], args[2], args[3])); |
1226 |
} |
1227 |
break;
|
1228 |
|
1229 |
case INDEX_op_shl_i32:
|
1230 |
if (const_args[2]) { |
1231 |
if (args[2]) |
1232 |
tcg_out32 (s, (RLWINM |
1233 |
| RA (args[0])
|
1234 |
| RS (args[1])
|
1235 |
| SH (args[2])
|
1236 |
| MB (0)
|
1237 |
| ME (31 - args[2]) |
1238 |
) |
1239 |
); |
1240 |
else
|
1241 |
tcg_out_mov (s, args[0], args[1]); |
1242 |
} |
1243 |
else
|
1244 |
tcg_out32 (s, SLW | SAB (args[1], args[0], args[2])); |
1245 |
break;
|
1246 |
case INDEX_op_shr_i32:
|
1247 |
if (const_args[2]) { |
1248 |
if (args[2]) |
1249 |
tcg_out32 (s, (RLWINM |
1250 |
| RA (args[0])
|
1251 |
| RS (args[1])
|
1252 |
| SH (32 - args[2]) |
1253 |
| MB (args[2])
|
1254 |
| ME (31)
|
1255 |
) |
1256 |
); |
1257 |
else
|
1258 |
tcg_out_mov (s, args[0], args[1]); |
1259 |
} |
1260 |
else
|
1261 |
tcg_out32 (s, SRW | SAB (args[1], args[0], args[2])); |
1262 |
break;
|
1263 |
case INDEX_op_sar_i32:
|
1264 |
if (const_args[2]) |
1265 |
tcg_out32 (s, SRAWI | RS (args[1]) | RA (args[0]) | SH (args[2])); |
1266 |
else
|
1267 |
tcg_out32 (s, SRAW | SAB (args[1], args[0], args[2])); |
1268 |
break;
|
1269 |
|
1270 |
case INDEX_op_add2_i32:
|
1271 |
if (args[0] == args[3] || args[0] == args[5]) { |
1272 |
tcg_out32 (s, ADDC | TAB (0, args[2], args[4])); |
1273 |
tcg_out32 (s, ADDE | TAB (args[1], args[3], args[5])); |
1274 |
tcg_out_mov (s, args[0], 0); |
1275 |
} |
1276 |
else {
|
1277 |
tcg_out32 (s, ADDC | TAB (args[0], args[2], args[4])); |
1278 |
tcg_out32 (s, ADDE | TAB (args[1], args[3], args[5])); |
1279 |
} |
1280 |
break;
|
1281 |
case INDEX_op_sub2_i32:
|
1282 |
if (args[0] == args[3] || args[0] == args[5]) { |
1283 |
tcg_out32 (s, SUBFC | TAB (0, args[4], args[2])); |
1284 |
tcg_out32 (s, SUBFE | TAB (args[1], args[5], args[3])); |
1285 |
tcg_out_mov (s, args[0], 0); |
1286 |
} |
1287 |
else {
|
1288 |
tcg_out32 (s, SUBFC | TAB (args[0], args[4], args[2])); |
1289 |
tcg_out32 (s, SUBFE | TAB (args[1], args[5], args[3])); |
1290 |
} |
1291 |
break;
|
1292 |
|
1293 |
case INDEX_op_brcond_i32:
|
1294 |
/*
|
1295 |
args[0] = r0
|
1296 |
args[1] = r1
|
1297 |
args[2] = cond
|
1298 |
args[3] = r1 is const
|
1299 |
args[4] = label_index
|
1300 |
*/
|
1301 |
tcg_out_brcond (s, args[2], args[0], args[1], const_args[1], args[3]); |
1302 |
break;
|
1303 |
case INDEX_op_brcond2_i32:
|
1304 |
tcg_out_brcond2(s, args, const_args); |
1305 |
break;
|
1306 |
|
1307 |
case INDEX_op_neg_i32:
|
1308 |
tcg_out32 (s, NEG | RT (args[0]) | RA (args[1])); |
1309 |
break;
|
1310 |
|
1311 |
case INDEX_op_qemu_ld8u:
|
1312 |
tcg_out_qemu_ld(s, args, 0);
|
1313 |
break;
|
1314 |
case INDEX_op_qemu_ld8s:
|
1315 |
tcg_out_qemu_ld(s, args, 0 | 4); |
1316 |
break;
|
1317 |
case INDEX_op_qemu_ld16u:
|
1318 |
tcg_out_qemu_ld(s, args, 1);
|
1319 |
break;
|
1320 |
case INDEX_op_qemu_ld16s:
|
1321 |
tcg_out_qemu_ld(s, args, 1 | 4); |
1322 |
break;
|
1323 |
case INDEX_op_qemu_ld32u:
|
1324 |
tcg_out_qemu_ld(s, args, 2);
|
1325 |
break;
|
1326 |
case INDEX_op_qemu_ld64:
|
1327 |
tcg_out_qemu_ld(s, args, 3);
|
1328 |
break;
|
1329 |
case INDEX_op_qemu_st8:
|
1330 |
tcg_out_qemu_st(s, args, 0);
|
1331 |
break;
|
1332 |
case INDEX_op_qemu_st16:
|
1333 |
tcg_out_qemu_st(s, args, 1);
|
1334 |
break;
|
1335 |
case INDEX_op_qemu_st32:
|
1336 |
tcg_out_qemu_st(s, args, 2);
|
1337 |
break;
|
1338 |
case INDEX_op_qemu_st64:
|
1339 |
tcg_out_qemu_st(s, args, 3);
|
1340 |
break;
|
1341 |
|
1342 |
default:
|
1343 |
tcg_dump_ops (s, stderr); |
1344 |
tcg_abort (); |
1345 |
} |
1346 |
} |
1347 |
|
1348 |
static const TCGTargetOpDef ppc_op_defs[] = { |
1349 |
{ INDEX_op_exit_tb, { } }, |
1350 |
{ INDEX_op_goto_tb, { } }, |
1351 |
{ INDEX_op_call, { "ri" } },
|
1352 |
{ INDEX_op_jmp, { "ri" } },
|
1353 |
{ INDEX_op_br, { } }, |
1354 |
|
1355 |
{ INDEX_op_mov_i32, { "r", "r" } }, |
1356 |
{ INDEX_op_movi_i32, { "r" } },
|
1357 |
{ INDEX_op_ld8u_i32, { "r", "r" } }, |
1358 |
{ INDEX_op_ld8s_i32, { "r", "r" } }, |
1359 |
{ INDEX_op_ld16u_i32, { "r", "r" } }, |
1360 |
{ INDEX_op_ld16s_i32, { "r", "r" } }, |
1361 |
{ INDEX_op_ld_i32, { "r", "r" } }, |
1362 |
{ INDEX_op_st8_i32, { "r", "r" } }, |
1363 |
{ INDEX_op_st16_i32, { "r", "r" } }, |
1364 |
{ INDEX_op_st_i32, { "r", "r" } }, |
1365 |
|
1366 |
{ INDEX_op_add_i32, { "r", "r", "ri" } }, |
1367 |
{ INDEX_op_mul_i32, { "r", "r", "ri" } }, |
1368 |
{ INDEX_op_div_i32, { "r", "r", "r" } }, |
1369 |
{ INDEX_op_divu_i32, { "r", "r", "r" } }, |
1370 |
{ INDEX_op_rem_i32, { "r", "r", "r" } }, |
1371 |
{ INDEX_op_remu_i32, { "r", "r", "r" } }, |
1372 |
{ INDEX_op_mulu2_i32, { "r", "r", "r", "r" } }, |
1373 |
{ INDEX_op_sub_i32, { "r", "r", "ri" } }, |
1374 |
{ INDEX_op_and_i32, { "r", "r", "ri" } }, |
1375 |
{ INDEX_op_or_i32, { "r", "r", "ri" } }, |
1376 |
{ INDEX_op_xor_i32, { "r", "r", "ri" } }, |
1377 |
|
1378 |
{ INDEX_op_shl_i32, { "r", "r", "ri" } }, |
1379 |
{ INDEX_op_shr_i32, { "r", "r", "ri" } }, |
1380 |
{ INDEX_op_sar_i32, { "r", "r", "ri" } }, |
1381 |
|
1382 |
{ INDEX_op_brcond_i32, { "r", "ri" } }, |
1383 |
|
1384 |
{ INDEX_op_add2_i32, { "r", "r", "r", "r", "r", "r" } }, |
1385 |
{ INDEX_op_sub2_i32, { "r", "r", "r", "r", "r", "r" } }, |
1386 |
{ INDEX_op_brcond2_i32, { "r", "r", "r", "r" } }, |
1387 |
|
1388 |
{ INDEX_op_neg_i32, { "r", "r" } }, |
1389 |
|
1390 |
#if TARGET_LONG_BITS == 32 |
1391 |
{ INDEX_op_qemu_ld8u, { "r", "L" } }, |
1392 |
{ INDEX_op_qemu_ld8s, { "r", "L" } }, |
1393 |
{ INDEX_op_qemu_ld16u, { "r", "L" } }, |
1394 |
{ INDEX_op_qemu_ld16s, { "r", "L" } }, |
1395 |
{ INDEX_op_qemu_ld32u, { "r", "L" } }, |
1396 |
{ INDEX_op_qemu_ld32s, { "r", "L" } }, |
1397 |
{ INDEX_op_qemu_ld64, { "r", "r", "L" } }, |
1398 |
|
1399 |
{ INDEX_op_qemu_st8, { "K", "K" } }, |
1400 |
{ INDEX_op_qemu_st16, { "K", "K" } }, |
1401 |
{ INDEX_op_qemu_st32, { "K", "K" } }, |
1402 |
{ INDEX_op_qemu_st64, { "M", "M", "M" } }, |
1403 |
#else
|
1404 |
{ INDEX_op_qemu_ld8u, { "r", "L", "L" } }, |
1405 |
{ INDEX_op_qemu_ld8s, { "r", "L", "L" } }, |
1406 |
{ INDEX_op_qemu_ld16u, { "r", "L", "L" } }, |
1407 |
{ INDEX_op_qemu_ld16s, { "r", "L", "L" } }, |
1408 |
{ INDEX_op_qemu_ld32u, { "r", "L", "L" } }, |
1409 |
{ INDEX_op_qemu_ld32s, { "r", "L", "L" } }, |
1410 |
{ INDEX_op_qemu_ld64, { "r", "L", "L", "L" } }, |
1411 |
|
1412 |
{ INDEX_op_qemu_st8, { "K", "K", "K" } }, |
1413 |
{ INDEX_op_qemu_st16, { "K", "K", "K" } }, |
1414 |
{ INDEX_op_qemu_st32, { "K", "K", "K" } }, |
1415 |
{ INDEX_op_qemu_st64, { "M", "M", "M", "M" } }, |
1416 |
#endif
|
1417 |
|
1418 |
{ -1 },
|
1419 |
}; |
1420 |
|
1421 |
void tcg_target_init(TCGContext *s)
|
1422 |
{ |
1423 |
tcg_regset_set32(tcg_target_available_regs[TCG_TYPE_I32], 0, 0xffffffff); |
1424 |
tcg_regset_set32(tcg_target_call_clobber_regs, 0,
|
1425 |
(1 << TCG_REG_R0) |
|
1426 |
(1 << TCG_REG_R3) |
|
1427 |
(1 << TCG_REG_R4) |
|
1428 |
(1 << TCG_REG_R5) |
|
1429 |
(1 << TCG_REG_R6) |
|
1430 |
(1 << TCG_REG_R7) |
|
1431 |
(1 << TCG_REG_R8) |
|
1432 |
(1 << TCG_REG_R9) |
|
1433 |
(1 << TCG_REG_R10) |
|
1434 |
(1 << TCG_REG_R11) |
|
1435 |
(1 << TCG_REG_R12)
|
1436 |
); |
1437 |
|
1438 |
tcg_regset_clear(s->reserved_regs); |
1439 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R0); |
1440 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R1); |
1441 |
tcg_regset_set_reg(s->reserved_regs, TCG_REG_R2); |
1442 |
|
1443 |
tcg_add_target_add_op_defs(ppc_op_defs); |
1444 |
} |