/* * OpenRISC translation * * Copyright (c) 2011-2012 Jia Liu * Feng Gao * * This library is free software; you can redistribute it and/or * modify it under the terms of the GNU Lesser General Public * License as published by the Free Software Foundation; either * version 2 of the License, or (at your option) any later version. * * This library is distributed in the hope that it will be useful, * but WITHOUT ANY WARRANTY; without even the implied warranty of * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * Lesser General Public License for more details. * * You should have received a copy of the GNU Lesser General Public * License along with this library; if not, see . */ #include "qemu/osdep.h" #include "cpu.h" #include "exec/exec-all.h" #include "disas/disas.h" #include "tcg-op.h" #include "qemu-common.h" #include "qemu/log.h" #include "qemu/bitops.h" #include "exec/cpu_ldst.h" #include "exec/helper-proto.h" #include "exec/helper-gen.h" #include "trace-tcg.h" #include "exec/log.h" #define LOG_DIS(str, ...) \ qemu_log_mask(CPU_LOG_TB_IN_ASM, "%08x: " str, dc->pc, ## __VA_ARGS__) typedef struct DisasContext { TranslationBlock *tb; target_ulong pc; uint32_t is_jmp; uint32_t mem_idx; uint32_t tb_flags; uint32_t delayed_branch; bool singlestep_enabled; } DisasContext; static TCGv_env cpu_env; static TCGv cpu_sr; static TCGv cpu_R[32]; static TCGv cpu_R0; static TCGv cpu_pc; static TCGv jmp_pc; /* l.jr/l.jalr temp pc */ static TCGv cpu_ppc; static TCGv cpu_sr_f; /* bf/bnf, F flag taken */ static TCGv cpu_sr_cy; /* carry (unsigned overflow) */ static TCGv cpu_sr_ov; /* signed overflow */ static TCGv cpu_lock_addr; static TCGv cpu_lock_value; static TCGv_i32 fpcsr; static TCGv_i64 cpu_mac; /* MACHI:MACLO */ static TCGv_i32 cpu_dflag; #include "exec/gen-icount.h" void openrisc_translate_init(void) { static const char * const regnames[] = { "r0", "r1", "r2", "r3", "r4", "r5", "r6", "r7", "r8", "r9", "r10", "r11", "r12", "r13", "r14", "r15", "r16", "r17", "r18", "r19", "r20", "r21", "r22", "r23", "r24", "r25", "r26", "r27", "r28", "r29", "r30", "r31", }; int i; cpu_env = tcg_global_reg_new_ptr(TCG_AREG0, "env"); tcg_ctx.tcg_env = cpu_env; cpu_sr = tcg_global_mem_new(cpu_env, offsetof(CPUOpenRISCState, sr), "sr"); cpu_dflag = tcg_global_mem_new_i32(cpu_env, offsetof(CPUOpenRISCState, dflag), "dflag"); cpu_pc = tcg_global_mem_new(cpu_env, offsetof(CPUOpenRISCState, pc), "pc"); cpu_ppc = tcg_global_mem_new(cpu_env, offsetof(CPUOpenRISCState, ppc), "ppc"); jmp_pc = tcg_global_mem_new(cpu_env, offsetof(CPUOpenRISCState, jmp_pc), "jmp_pc"); cpu_sr_f = tcg_global_mem_new(cpu_env, offsetof(CPUOpenRISCState, sr_f), "sr_f"); cpu_sr_cy = tcg_global_mem_new(cpu_env, offsetof(CPUOpenRISCState, sr_cy), "sr_cy"); cpu_sr_ov = tcg_global_mem_new(cpu_env, offsetof(CPUOpenRISCState, sr_ov), "sr_ov"); cpu_lock_addr = tcg_global_mem_new(cpu_env, offsetof(CPUOpenRISCState, lock_addr), "lock_addr"); cpu_lock_value = tcg_global_mem_new(cpu_env, offsetof(CPUOpenRISCState, lock_value), "lock_value"); fpcsr = tcg_global_mem_new_i32(cpu_env, offsetof(CPUOpenRISCState, fpcsr), "fpcsr"); cpu_mac = tcg_global_mem_new_i64(cpu_env, offsetof(CPUOpenRISCState, mac), "mac"); for (i = 0; i < 32; i++) { cpu_R[i] = tcg_global_mem_new(cpu_env, offsetof(CPUOpenRISCState, shadow_gpr[0][i]), regnames[i]); } cpu_R0 = cpu_R[0]; } static void gen_exception(DisasContext *dc, unsigned int excp) { TCGv_i32 tmp = tcg_const_i32(excp); gen_helper_exception(cpu_env, tmp); tcg_temp_free_i32(tmp); } static void gen_illegal_exception(DisasContext *dc) { tcg_gen_movi_tl(cpu_pc, dc->pc); gen_exception(dc, EXCP_ILLEGAL); dc->is_jmp = DISAS_UPDATE; } /* not used yet, open it when we need or64. */ /*#ifdef TARGET_OPENRISC64 static void check_ob64s(DisasContext *dc) { if (!(dc->flags & CPUCFGR_OB64S)) { gen_illegal_exception(dc); } } static void check_of64s(DisasContext *dc) { if (!(dc->flags & CPUCFGR_OF64S)) { gen_illegal_exception(dc); } } static void check_ov64s(DisasContext *dc) { if (!(dc->flags & CPUCFGR_OV64S)) { gen_illegal_exception(dc); } } #endif*/ /* We're about to write to REG. On the off-chance that the user is writing to R0, re-instate the architectural register. */ #define check_r0_write(reg) \ do { \ if (unlikely(reg == 0)) { \ cpu_R[0] = cpu_R0; \ } \ } while (0) static inline bool use_goto_tb(DisasContext *dc, target_ulong dest) { if (unlikely(dc->singlestep_enabled)) { return false; } #ifndef CONFIG_USER_ONLY return (dc->tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK); #else return true; #endif } static void gen_goto_tb(DisasContext *dc, int n, target_ulong dest) { if (use_goto_tb(dc, dest)) { tcg_gen_movi_tl(cpu_pc, dest); tcg_gen_goto_tb(n); tcg_gen_exit_tb((uintptr_t)dc->tb + n); } else { tcg_gen_movi_tl(cpu_pc, dest); if (dc->singlestep_enabled) { gen_exception(dc, EXCP_DEBUG); } tcg_gen_exit_tb(0); } } static void gen_jump(DisasContext *dc, int32_t n26, uint32_t reg, uint32_t op0) { target_ulong tmp_pc = dc->pc + n26 * 4; switch (op0) { case 0x00: /* l.j */ tcg_gen_movi_tl(jmp_pc, tmp_pc); break; case 0x01: /* l.jal */ tcg_gen_movi_tl(cpu_R[9], dc->pc + 8); /* Optimize jal being used to load the PC for PIC. */ if (tmp_pc == dc->pc + 8) { return; } tcg_gen_movi_tl(jmp_pc, tmp_pc); break; case 0x03: /* l.bnf */ case 0x04: /* l.bf */ { TCGv t_next = tcg_const_tl(dc->pc + 8); TCGv t_true = tcg_const_tl(tmp_pc); TCGv t_zero = tcg_const_tl(0); tcg_gen_movcond_tl(op0 == 0x03 ? TCG_COND_EQ : TCG_COND_NE, jmp_pc, cpu_sr_f, t_zero, t_true, t_next); tcg_temp_free(t_next); tcg_temp_free(t_true); tcg_temp_free(t_zero); } break; case 0x11: /* l.jr */ tcg_gen_mov_tl(jmp_pc, cpu_R[reg]); break; case 0x12: /* l.jalr */ tcg_gen_movi_tl(cpu_R[9], (dc->pc + 8)); tcg_gen_mov_tl(jmp_pc, cpu_R[reg]); break; default: gen_illegal_exception(dc); break; } dc->delayed_branch = 2; } static void gen_ove_cy(DisasContext *dc) { if (dc->tb_flags & SR_OVE) { gen_helper_ove_cy(cpu_env); } } static void gen_ove_ov(DisasContext *dc) { if (dc->tb_flags & SR_OVE) { gen_helper_ove_ov(cpu_env); } } static void gen_ove_cyov(DisasContext *dc) { if (dc->tb_flags & SR_OVE) { gen_helper_ove_cyov(cpu_env); } } static void gen_add(DisasContext *dc, TCGv dest, TCGv srca, TCGv srcb) { TCGv t0 = tcg_const_tl(0); TCGv res = tcg_temp_new(); tcg_gen_add2_tl(res, cpu_sr_cy, srca, t0, srcb, t0); tcg_gen_xor_tl(cpu_sr_ov, srca, srcb); tcg_gen_xor_tl(t0, res, srcb); tcg_gen_andc_tl(cpu_sr_ov, t0, cpu_sr_ov); tcg_temp_free(t0); tcg_gen_mov_tl(dest, res); tcg_temp_free(res); gen_ove_cyov(dc); } static void gen_addc(DisasContext *dc, TCGv dest, TCGv srca, TCGv srcb) { TCGv t0 = tcg_const_tl(0); TCGv res = tcg_temp_new(); tcg_gen_add2_tl(res, cpu_sr_cy, srca, t0, cpu_sr_cy, t0); tcg_gen_add2_tl(res, cpu_sr_cy, res, cpu_sr_cy, srcb, t0); tcg_gen_xor_tl(cpu_sr_ov, srca, srcb); tcg_gen_xor_tl(t0, res, srcb); tcg_gen_andc_tl(cpu_sr_ov, t0, cpu_sr_ov); tcg_temp_free(t0); tcg_gen_mov_tl(dest, res); tcg_temp_free(res); gen_ove_cyov(dc); } static void gen_sub(DisasContext *dc, TCGv dest, TCGv srca, TCGv srcb) { TCGv res = tcg_temp_new(); tcg_gen_sub_tl(res, srca, srcb); tcg_gen_xor_tl(cpu_sr_cy, srca, srcb); tcg_gen_xor_tl(cpu_sr_ov, res, srcb); tcg_gen_and_tl(cpu_sr_ov, cpu_sr_ov, cpu_sr_cy); tcg_gen_setcond_tl(TCG_COND_LTU, cpu_sr_cy, srca, srcb); tcg_gen_mov_tl(dest, res); tcg_temp_free(res); gen_ove_cyov(dc); } static void gen_mul(DisasContext *dc, TCGv dest, TCGv srca, TCGv srcb) { TCGv t0 = tcg_temp_new(); tcg_gen_muls2_tl(dest, cpu_sr_ov, srca, srcb); tcg_gen_sari_tl(t0, dest, TARGET_LONG_BITS - 1); tcg_gen_setcond_tl(TCG_COND_NE, cpu_sr_ov, cpu_sr_ov, t0); tcg_temp_free(t0); tcg_gen_neg_tl(cpu_sr_ov, cpu_sr_ov); gen_ove_ov(dc); } static void gen_mulu(DisasContext *dc, TCGv dest, TCGv srca, TCGv srcb) { tcg_gen_muls2_tl(dest, cpu_sr_cy, srca, srcb); tcg_gen_setcondi_tl(TCG_COND_NE, cpu_sr_cy, cpu_sr_cy, 0); gen_ove_cy(dc); } static void gen_div(DisasContext *dc, TCGv dest, TCGv srca, TCGv srcb) { TCGv t0 = tcg_temp_new(); tcg_gen_setcondi_tl(TCG_COND_EQ, cpu_sr_ov, srcb, 0); /* The result of divide-by-zero is undefined. Supress the host-side exception by dividing by 1. */ tcg_gen_or_tl(t0, srcb, cpu_sr_ov); tcg_gen_div_tl(dest, srca, t0); tcg_temp_free(t0); tcg_gen_neg_tl(cpu_sr_ov, cpu_sr_ov); gen_ove_ov(dc); } static void gen_divu(DisasContext *dc, TCGv dest, TCGv srca, TCGv srcb) { TCGv t0 = tcg_temp_new(); tcg_gen_setcondi_tl(TCG_COND_EQ, cpu_sr_cy, srcb, 0); /* The result of divide-by-zero is undefined. Supress the host-side exception by dividing by 1. */ tcg_gen_or_tl(t0, srcb, cpu_sr_cy); tcg_gen_divu_tl(dest, srca, t0); tcg_temp_free(t0); gen_ove_cy(dc); } static void gen_muld(DisasContext *dc, TCGv srca, TCGv srcb) { TCGv_i64 t1 = tcg_temp_new_i64(); TCGv_i64 t2 = tcg_temp_new_i64(); tcg_gen_ext_tl_i64(t1, srca); tcg_gen_ext_tl_i64(t2, srcb); if (TARGET_LONG_BITS == 32) { tcg_gen_mul_i64(cpu_mac, t1, t2); tcg_gen_movi_tl(cpu_sr_ov, 0); } else { TCGv_i64 high = tcg_temp_new_i64(); tcg_gen_muls2_i64(cpu_mac, high, t1, t2); tcg_gen_sari_i64(t1, cpu_mac, 63); tcg_gen_setcond_i64(TCG_COND_NE, t1, t1, high); tcg_temp_free_i64(high); tcg_gen_trunc_i64_tl(cpu_sr_ov, t1); tcg_gen_neg_tl(cpu_sr_ov, cpu_sr_ov); gen_ove_ov(dc); } tcg_temp_free_i64(t1); tcg_temp_free_i64(t2); } static void gen_muldu(DisasContext *dc, TCGv srca, TCGv srcb) { TCGv_i64 t1 = tcg_temp_new_i64(); TCGv_i64 t2 = tcg_temp_new_i64(); tcg_gen_extu_tl_i64(t1, srca); tcg_gen_extu_tl_i64(t2, srcb); if (TARGET_LONG_BITS == 32) { tcg_gen_mul_i64(cpu_mac, t1, t2); tcg_gen_movi_tl(cpu_sr_cy, 0); } else { TCGv_i64 high = tcg_temp_new_i64(); tcg_gen_mulu2_i64(cpu_mac, high, t1, t2); tcg_gen_setcondi_i64(TCG_COND_NE, high, high, 0); tcg_gen_trunc_i64_tl(cpu_sr_cy, high); tcg_temp_free_i64(high); gen_ove_cy(dc); } tcg_temp_free_i64(t1); tcg_temp_free_i64(t2); } static void gen_mac(DisasContext *dc, TCGv srca, TCGv srcb) { TCGv_i64 t1 = tcg_temp_new_i64(); TCGv_i64 t2 = tcg_temp_new_i64(); tcg_gen_ext_tl_i64(t1, srca); tcg_gen_ext_tl_i64(t2, srcb); tcg_gen_mul_i64(t1, t1, t2); /* Note that overflow is only computed during addition stage. */ tcg_gen_xor_i64(t2, cpu_mac, t1); tcg_gen_add_i64(cpu_mac, cpu_mac, t1); tcg_gen_xor_i64(t1, t1, cpu_mac); tcg_gen_andc_i64(t1, t1, t2); tcg_temp_free_i64(t2); #if TARGET_LONG_BITS == 32 tcg_gen_extrh_i64_i32(cpu_sr_ov, t1); #else tcg_gen_mov_i64(cpu_sr_ov, t1); #endif tcg_temp_free_i64(t1); gen_ove_ov(dc); } static void gen_macu(DisasContext *dc, TCGv srca, TCGv srcb) { TCGv_i64 t1 = tcg_temp_new_i64(); TCGv_i64 t2 = tcg_temp_new_i64(); tcg_gen_extu_tl_i64(t1, srca); tcg_gen_extu_tl_i64(t2, srcb); tcg_gen_mul_i64(t1, t1, t2); tcg_temp_free_i64(t2); /* Note that overflow is only computed during addition stage. */ tcg_gen_add_i64(cpu_mac, cpu_mac, t1); tcg_gen_setcond_i64(TCG_COND_LTU, t1, cpu_mac, t1); tcg_gen_trunc_i64_tl(cpu_sr_cy, t1); tcg_temp_free_i64(t1); gen_ove_cy(dc); } static void gen_msb(DisasContext *dc, TCGv srca, TCGv srcb) { TCGv_i64 t1 = tcg_temp_new_i64(); TCGv_i64 t2 = tcg_temp_new_i64(); tcg_gen_ext_tl_i64(t1, srca); tcg_gen_ext_tl_i64(t2, srcb); tcg_gen_mul_i64(t1, t1, t2); /* Note that overflow is only computed during subtraction stage. */ tcg_gen_xor_i64(t2, cpu_mac, t1); tcg_gen_sub_i64(cpu_mac, cpu_mac, t1); tcg_gen_xor_i64(t1, t1, cpu_mac); tcg_gen_and_i64(t1, t1, t2); tcg_temp_free_i64(t2); #if TARGET_LONG_BITS == 32 tcg_gen_extrh_i64_i32(cpu_sr_ov, t1); #else tcg_gen_mov_i64(cpu_sr_ov, t1); #endif tcg_temp_free_i64(t1); gen_ove_ov(dc); } static void gen_msbu(DisasContext *dc, TCGv srca, TCGv srcb) { TCGv_i64 t1 = tcg_temp_new_i64(); TCGv_i64 t2 = tcg_temp_new_i64(); tcg_gen_extu_tl_i64(t1, srca); tcg_gen_extu_tl_i64(t2, srcb); tcg_gen_mul_i64(t1, t1, t2); /* Note that overflow is only computed during subtraction stage. */ tcg_gen_setcond_i64(TCG_COND_LTU, t2, cpu_mac, t1); tcg_gen_sub_i64(cpu_mac, cpu_mac, t1); tcg_gen_trunc_i64_tl(cpu_sr_cy, t2); tcg_temp_free_i64(t2); tcg_temp_free_i64(t1); gen_ove_cy(dc); } static void gen_lwa(DisasContext *dc, TCGv rd, TCGv ra, int32_t ofs) { TCGv ea = tcg_temp_new(); tcg_gen_addi_tl(ea, ra, ofs); tcg_gen_qemu_ld_tl(rd, ea, dc->mem_idx, MO_TEUL); tcg_gen_mov_tl(cpu_lock_addr, ea); tcg_gen_mov_tl(cpu_lock_value, rd); tcg_temp_free(ea); } static void gen_swa(DisasContext *dc, int b, TCGv ra, int32_t ofs) { TCGv ea, val; TCGLabel *lab_fail, *lab_done; ea = tcg_temp_new(); tcg_gen_addi_tl(ea, ra, ofs); /* For TB_FLAGS_R0_0, the branch below invalidates the temporary assigned to cpu_R[0]. Since l.swa is quite often immediately followed by a branch, don't bother reallocating; finish the TB using the "real" R0. This also takes care of RB input across the branch. */ cpu_R[0] = cpu_R0; lab_fail = gen_new_label(); lab_done = gen_new_label(); tcg_gen_brcond_tl(TCG_COND_NE, ea, cpu_lock_addr, lab_fail); tcg_temp_free(ea); val = tcg_temp_new(); tcg_gen_atomic_cmpxchg_tl(val, cpu_lock_addr, cpu_lock_value, cpu_R[b], dc->mem_idx, MO_TEUL); tcg_gen_setcond_tl(TCG_COND_EQ, cpu_sr_f, val, cpu_lock_value); tcg_temp_free(val); tcg_gen_br(lab_done); gen_set_label(lab_fail); tcg_gen_movi_tl(cpu_sr_f, 0); gen_set_label(lab_done); tcg_gen_movi_tl(cpu_lock_addr, -1); } static void dec_calc(DisasContext *dc, uint32_t insn) { uint32_t op0, op1, op2; uint32_t ra, rb, rd; op0 = extract32(insn, 0, 4); op1 = extract32(insn, 8, 2); op2 = extract32(insn, 6, 2); ra = extract32(insn, 16, 5); rb = extract32(insn, 11, 5); rd = extract32(insn, 21, 5); switch (op1) { case 0: switch (op0) { case 0x0: /* l.add */ LOG_DIS("l.add r%d, r%d, r%d\n", rd, ra, rb); gen_add(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]); return; case 0x1: /* l.addc */ LOG_DIS("l.addc r%d, r%d, r%d\n", rd, ra, rb); gen_addc(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]); return; case 0x2: /* l.sub */ LOG_DIS("l.sub r%d, r%d, r%d\n", rd, ra, rb); gen_sub(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]); return; case 0x3: /* l.and */ LOG_DIS("l.and r%d, r%d, r%d\n", rd, ra, rb); tcg_gen_and_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); return; case 0x4: /* l.or */ LOG_DIS("l.or r%d, r%d, r%d\n", rd, ra, rb); tcg_gen_or_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); return; case 0x5: /* l.xor */ LOG_DIS("l.xor r%d, r%d, r%d\n", rd, ra, rb); tcg_gen_xor_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); return; case 0x8: switch (op2) { case 0: /* l.sll */ LOG_DIS("l.sll r%d, r%d, r%d\n", rd, ra, rb); tcg_gen_shl_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); return; case 1: /* l.srl */ LOG_DIS("l.srl r%d, r%d, r%d\n", rd, ra, rb); tcg_gen_shr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); return; case 2: /* l.sra */ LOG_DIS("l.sra r%d, r%d, r%d\n", rd, ra, rb); tcg_gen_sar_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); return; case 3: /* l.ror */ LOG_DIS("l.ror r%d, r%d, r%d\n", rd, ra, rb); tcg_gen_rotr_tl(cpu_R[rd], cpu_R[ra], cpu_R[rb]); return; } break; case 0xc: switch (op2) { case 0: /* l.exths */ LOG_DIS("l.exths r%d, r%d\n", rd, ra); tcg_gen_ext16s_tl(cpu_R[rd], cpu_R[ra]); return; case 1: /* l.extbs */ LOG_DIS("l.extbs r%d, r%d\n", rd, ra); tcg_gen_ext8s_tl(cpu_R[rd], cpu_R[ra]); return; case 2: /* l.exthz */ LOG_DIS("l.exthz r%d, r%d\n", rd, ra); tcg_gen_ext16u_tl(cpu_R[rd], cpu_R[ra]); return; case 3: /* l.extbz */ LOG_DIS("l.extbz r%d, r%d\n", rd, ra); tcg_gen_ext8u_tl(cpu_R[rd], cpu_R[ra]); return; } break; case 0xd: switch (op2) { case 0: /* l.extws */ LOG_DIS("l.extws r%d, r%d\n", rd, ra); tcg_gen_ext32s_tl(cpu_R[rd], cpu_R[ra]); return; case 1: /* l.extwz */ LOG_DIS("l.extwz r%d, r%d\n", rd, ra); tcg_gen_ext32u_tl(cpu_R[rd], cpu_R[ra]); return; } break; case 0xe: /* l.cmov */ LOG_DIS("l.cmov r%d, r%d, r%d\n", rd, ra, rb); { TCGv zero = tcg_const_tl(0); tcg_gen_movcond_tl(TCG_COND_NE, cpu_R[rd], cpu_sr_f, zero, cpu_R[ra], cpu_R[rb]); tcg_temp_free(zero); } return; case 0xf: /* l.ff1 */ LOG_DIS("l.ff1 r%d, r%d, r%d\n", rd, ra, rb); tcg_gen_ctzi_tl(cpu_R[rd], cpu_R[ra], -1); tcg_gen_addi_tl(cpu_R[rd], cpu_R[rd], 1); return; } break; case 1: switch (op0) { case 0xf: /* l.fl1 */ LOG_DIS("l.fl1 r%d, r%d, r%d\n", rd, ra, rb); tcg_gen_clzi_tl(cpu_R[rd], cpu_R[ra], TARGET_LONG_BITS); tcg_gen_subfi_tl(cpu_R[rd], TARGET_LONG_BITS, cpu_R[rd]); return; } break; case 2: break; case 3: switch (op0) { case 0x6: /* l.mul */ LOG_DIS("l.mul r%d, r%d, r%d\n", rd, ra, rb); gen_mul(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]); return; case 0x7: /* l.muld */ LOG_DIS("l.muld r%d, r%d\n", ra, rb); gen_muld(dc, cpu_R[ra], cpu_R[rb]); break; case 0x9: /* l.div */ LOG_DIS("l.div r%d, r%d, r%d\n", rd, ra, rb); gen_div(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]); return; case 0xa: /* l.divu */ LOG_DIS("l.divu r%d, r%d, r%d\n", rd, ra, rb); gen_divu(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]); return; case 0xb: /* l.mulu */ LOG_DIS("l.mulu r%d, r%d, r%d\n", rd, ra, rb); gen_mulu(dc, cpu_R[rd], cpu_R[ra], cpu_R[rb]); return; case 0xc: /* l.muldu */ LOG_DIS("l.muldu r%d, r%d\n", ra, rb); gen_muldu(dc, cpu_R[ra], cpu_R[rb]); return; } break; } gen_illegal_exception(dc); } static void dec_misc(DisasContext *dc, uint32_t insn) { uint32_t op0, op1; uint32_t ra, rb, rd; uint32_t L6, K5, K16, K5_11; int32_t I16, I5_11, N26; TCGMemOp mop; TCGv t0; op0 = extract32(insn, 26, 6); op1 = extract32(insn, 24, 2); ra = extract32(insn, 16, 5); rb = extract32(insn, 11, 5); rd = extract32(insn, 21, 5); L6 = extract32(insn, 5, 6); K5 = extract32(insn, 0, 5); K16 = extract32(insn, 0, 16); I16 = (int16_t)K16; N26 = sextract32(insn, 0, 26); K5_11 = (extract32(insn, 21, 5) << 11) | extract32(insn, 0, 11); I5_11 = (int16_t)K5_11; switch (op0) { case 0x00: /* l.j */ LOG_DIS("l.j %d\n", N26); gen_jump(dc, N26, 0, op0); break; case 0x01: /* l.jal */ LOG_DIS("l.jal %d\n", N26); gen_jump(dc, N26, 0, op0); break; case 0x03: /* l.bnf */ LOG_DIS("l.bnf %d\n", N26); gen_jump(dc, N26, 0, op0); break; case 0x04: /* l.bf */ LOG_DIS("l.bf %d\n", N26); gen_jump(dc, N26, 0, op0); break; case 0x05: switch (op1) { case 0x01: /* l.nop */ LOG_DIS("l.nop %d\n", I16); break; default: gen_illegal_exception(dc); break; } break; case 0x11: /* l.jr */ LOG_DIS("l.jr r%d\n", rb); gen_jump(dc, 0, rb, op0); break; case 0x12: /* l.jalr */ LOG_DIS("l.jalr r%d\n", rb); gen_jump(dc, 0, rb, op0); break; case 0x13: /* l.maci */ LOG_DIS("l.maci r%d, %d\n", ra, I16); t0 = tcg_const_tl(I16); gen_mac(dc, cpu_R[ra], t0); tcg_temp_free(t0); break; case 0x09: /* l.rfe */ LOG_DIS("l.rfe\n"); { #if defined(CONFIG_USER_ONLY) return; #else if (dc->mem_idx == MMU_USER_IDX) { gen_illegal_exception(dc); return; } gen_helper_rfe(cpu_env); dc->is_jmp = DISAS_UPDATE; #endif } break; case 0x1b: /* l.lwa */ LOG_DIS("l.lwa r%d, r%d, %d\n", rd, ra, I16); check_r0_write(rd); gen_lwa(dc, cpu_R[rd], cpu_R[ra], I16); break; case 0x1c: /* l.cust1 */ LOG_DIS("l.cust1\n"); break; case 0x1d: /* l.cust2 */ LOG_DIS("l.cust2\n"); break; case 0x1e: /* l.cust3 */ LOG_DIS("l.cust3\n"); break; case 0x1f: /* l.cust4 */ LOG_DIS("l.cust4\n"); break; case 0x3c: /* l.cust5 */ LOG_DIS("l.cust5 r%d, r%d, r%d, %d, %d\n", rd, ra, rb, L6, K5); break; case 0x3d: /* l.cust6 */ LOG_DIS("l.cust6\n"); break; case 0x3e: /* l.cust7 */ LOG_DIS("l.cust7\n"); break; case 0x3f: /* l.cust8 */ LOG_DIS("l.cust8\n"); break; /* not used yet, open it when we need or64. */ /*#ifdef TARGET_OPENRISC64 case 0x20: l.ld LOG_DIS("l.ld r%d, r%d, %d\n", rd, ra, I16); check_ob64s(dc); mop = MO_TEQ; goto do_load; #endif*/ case 0x21: /* l.lwz */ LOG_DIS("l.lwz r%d, r%d, %d\n", rd, ra, I16); mop = MO_TEUL; goto do_load; case 0x22: /* l.lws */ LOG_DIS("l.lws r%d, r%d, %d\n", rd, ra, I16); mop = MO_TESL; goto do_load; case 0x23: /* l.lbz */ LOG_DIS("l.lbz r%d, r%d, %d\n", rd, ra, I16); mop = MO_UB; goto do_load; case 0x24: /* l.lbs */ LOG_DIS("l.lbs r%d, r%d, %d\n", rd, ra, I16); mop = MO_SB; goto do_load; case 0x25: /* l.lhz */ LOG_DIS("l.lhz r%d, r%d, %d\n", rd, ra, I16); mop = MO_TEUW; goto do_load; case 0x26: /* l.lhs */ LOG_DIS("l.lhs r%d, r%d, %d\n", rd, ra, I16); mop = MO_TESW; goto do_load; do_load: check_r0_write(rd); t0 = tcg_temp_new(); tcg_gen_addi_tl(t0, cpu_R[ra], I16); tcg_gen_qemu_ld_tl(cpu_R[rd], t0, dc->mem_idx, mop); tcg_temp_free(t0); break; case 0x27: /* l.addi */ LOG_DIS("l.addi r%d, r%d, %d\n", rd, ra, I16); check_r0_write(rd); t0 = tcg_const_tl(I16); gen_add(dc, cpu_R[rd], cpu_R[ra], t0); tcg_temp_free(t0); break; case 0x28: /* l.addic */ LOG_DIS("l.addic r%d, r%d, %d\n", rd, ra, I16); check_r0_write(rd); t0 = tcg_const_tl(I16); gen_addc(dc, cpu_R[rd], cpu_R[ra], t0); tcg_temp_free(t0); break; case 0x29: /* l.andi */ LOG_DIS("l.andi r%d, r%d, %d\n", rd, ra, K16); check_r0_write(rd); tcg_gen_andi_tl(cpu_R[rd], cpu_R[ra], K16); break; case 0x2a: /* l.ori */ LOG_DIS("l.ori r%d, r%d, %d\n", rd, ra, K16); check_r0_write(rd); tcg_gen_ori_tl(cpu_R[rd], cpu_R[ra], K16); break; case 0x2b: /* l.xori */ LOG_DIS("l.xori r%d, r%d, %d\n", rd, ra, I16); check_r0_write(rd); tcg_gen_xori_tl(cpu_R[rd], cpu_R[ra], I16); break; case 0x2c: /* l.muli */ LOG_DIS("l.muli r%d, r%d, %d\n", rd, ra, I16); check_r0_write(rd); t0 = tcg_const_tl(I16); gen_mul(dc, cpu_R[rd], cpu_R[ra], t0); tcg_temp_free(t0); break; case 0x2d: /* l.mfspr */ LOG_DIS("l.mfspr r%d, r%d, %d\n", rd, ra, K16); check_r0_write(rd); { #if defined(CONFIG_USER_ONLY) return; #else TCGv_i32 ti = tcg_const_i32(K16); if (dc->mem_idx == MMU_USER_IDX) { gen_illegal_exception(dc); return; } gen_helper_mfspr(cpu_R[rd], cpu_env, cpu_R[rd], cpu_R[ra], ti); tcg_temp_free_i32(ti); #endif } break; case 0x30: /* l.mtspr */ LOG_DIS("l.mtspr r%d, r%d, %d\n", ra, rb, K5_11); { #if defined(CONFIG_USER_ONLY) return; #else TCGv_i32 im = tcg_const_i32(K5_11); if (dc->mem_idx == MMU_USER_IDX) { gen_illegal_exception(dc); return; } gen_helper_mtspr(cpu_env, cpu_R[ra], cpu_R[rb], im); tcg_temp_free_i32(im); #endif } break; case 0x33: /* l.swa */ LOG_DIS("l.swa r%d, r%d, %d\n", ra, rb, I5_11); gen_swa(dc, rb, cpu_R[ra], I5_11); break; /* not used yet, open it when we need or64. */ /*#ifdef TARGET_OPENRISC64 case 0x34: l.sd LOG_DIS("l.sd r%d, r%d, %d\n", ra, rb, I5_11); check_ob64s(dc); mop = MO_TEQ; goto do_store; #endif*/ case 0x35: /* l.sw */ LOG_DIS("l.sw r%d, r%d, %d\n", ra, rb, I5_11); mop = MO_TEUL; goto do_store; case 0x36: /* l.sb */ LOG_DIS("l.sb r%d, r%d, %d\n", ra, rb, I5_11); mop = MO_UB; goto do_store; case 0x37: /* l.sh */ LOG_DIS("l.sh r%d, r%d, %d\n", ra, rb, I5_11); mop = MO_TEUW; goto do_store; do_store: { TCGv t0 = tcg_temp_new(); tcg_gen_addi_tl(t0, cpu_R[ra], I5_11); tcg_gen_qemu_st_tl(cpu_R[rb], t0, dc->mem_idx, mop); tcg_temp_free(t0); } break; default: gen_illegal_exception(dc); break; } } static void dec_mac(DisasContext *dc, uint32_t insn) { uint32_t op0; uint32_t ra, rb; op0 = extract32(insn, 0, 4); ra = extract32(insn, 16, 5); rb = extract32(insn, 11, 5); switch (op0) { case 0x0001: /* l.mac */ LOG_DIS("l.mac r%d, r%d\n", ra, rb); gen_mac(dc, cpu_R[ra], cpu_R[rb]); break; case 0x0002: /* l.msb */ LOG_DIS("l.msb r%d, r%d\n", ra, rb); gen_msb(dc, cpu_R[ra], cpu_R[rb]); break; case 0x0003: /* l.macu */ LOG_DIS("l.macu r%d, r%d\n", ra, rb); gen_macu(dc, cpu_R[ra], cpu_R[rb]); break; case 0x0004: /* l.msbu */ LOG_DIS("l.msbu r%d, r%d\n", ra, rb); gen_msbu(dc, cpu_R[ra], cpu_R[rb]); break; default: gen_illegal_exception(dc); break; } } static void dec_logic(DisasContext *dc, uint32_t insn) { uint32_t op0; uint32_t rd, ra, L6, S6; op0 = extract32(insn, 6, 2); rd = extract32(insn, 21, 5); ra = extract32(insn, 16, 5); L6 = extract32(insn, 0, 6); S6 = L6 & (TARGET_LONG_BITS - 1); check_r0_write(rd); switch (op0) { case 0x00: /* l.slli */ LOG_DIS("l.slli r%d, r%d, %d\n", rd, ra, L6); tcg_gen_shli_tl(cpu_R[rd], cpu_R[ra], S6); break; case 0x01: /* l.srli */ LOG_DIS("l.srli r%d, r%d, %d\n", rd, ra, L6); tcg_gen_shri_tl(cpu_R[rd], cpu_R[ra], S6); break; case 0x02: /* l.srai */ LOG_DIS("l.srai r%d, r%d, %d\n", rd, ra, L6); tcg_gen_sari_tl(cpu_R[rd], cpu_R[ra], S6); break; case 0x03: /* l.rori */ LOG_DIS("l.rori r%d, r%d, %d\n", rd, ra, L6); tcg_gen_rotri_tl(cpu_R[rd], cpu_R[ra], S6); break; default: gen_illegal_exception(dc); break; } } static void dec_M(DisasContext *dc, uint32_t insn) { uint32_t op0; uint32_t rd; uint32_t K16; op0 = extract32(insn, 16, 1); rd = extract32(insn, 21, 5); K16 = extract32(insn, 0, 16); check_r0_write(rd); switch (op0) { case 0x0: /* l.movhi */ LOG_DIS("l.movhi r%d, %d\n", rd, K16); tcg_gen_movi_tl(cpu_R[rd], (K16 << 16)); break; case 0x1: /* l.macrc */ LOG_DIS("l.macrc r%d\n", rd); tcg_gen_trunc_i64_tl(cpu_R[rd], cpu_mac); tcg_gen_movi_i64(cpu_mac, 0); break; default: gen_illegal_exception(dc); break; } } static void dec_comp(DisasContext *dc, uint32_t insn) { uint32_t op0; uint32_t ra, rb; op0 = extract32(insn, 21, 5); ra = extract32(insn, 16, 5); rb = extract32(insn, 11, 5); /* unsigned integers */ tcg_gen_ext32u_tl(cpu_R[ra], cpu_R[ra]); tcg_gen_ext32u_tl(cpu_R[rb], cpu_R[rb]); switch (op0) { case 0x0: /* l.sfeq */ LOG_DIS("l.sfeq r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_EQ, cpu_sr_f, cpu_R[ra], cpu_R[rb]); break; case 0x1: /* l.sfne */ LOG_DIS("l.sfne r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_NE, cpu_sr_f, cpu_R[ra], cpu_R[rb]); break; case 0x2: /* l.sfgtu */ LOG_DIS("l.sfgtu r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_GTU, cpu_sr_f, cpu_R[ra], cpu_R[rb]); break; case 0x3: /* l.sfgeu */ LOG_DIS("l.sfgeu r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_GEU, cpu_sr_f, cpu_R[ra], cpu_R[rb]); break; case 0x4: /* l.sfltu */ LOG_DIS("l.sfltu r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_LTU, cpu_sr_f, cpu_R[ra], cpu_R[rb]); break; case 0x5: /* l.sfleu */ LOG_DIS("l.sfleu r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_LEU, cpu_sr_f, cpu_R[ra], cpu_R[rb]); break; case 0xa: /* l.sfgts */ LOG_DIS("l.sfgts r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_GT, cpu_sr_f, cpu_R[ra], cpu_R[rb]); break; case 0xb: /* l.sfges */ LOG_DIS("l.sfges r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_GE, cpu_sr_f, cpu_R[ra], cpu_R[rb]); break; case 0xc: /* l.sflts */ LOG_DIS("l.sflts r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_LT, cpu_sr_f, cpu_R[ra], cpu_R[rb]); break; case 0xd: /* l.sfles */ LOG_DIS("l.sfles r%d, r%d\n", ra, rb); tcg_gen_setcond_tl(TCG_COND_LE, cpu_sr_f, cpu_R[ra], cpu_R[rb]); break; default: gen_illegal_exception(dc); break; } } static void dec_compi(DisasContext *dc, uint32_t insn) { uint32_t op0, ra; int32_t I16; op0 = extract32(insn, 21, 5); ra = extract32(insn, 16, 5); I16 = sextract32(insn, 0, 16); switch (op0) { case 0x0: /* l.sfeqi */ LOG_DIS("l.sfeqi r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_EQ, cpu_sr_f, cpu_R[ra], I16); break; case 0x1: /* l.sfnei */ LOG_DIS("l.sfnei r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_NE, cpu_sr_f, cpu_R[ra], I16); break; case 0x2: /* l.sfgtui */ LOG_DIS("l.sfgtui r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_GTU, cpu_sr_f, cpu_R[ra], I16); break; case 0x3: /* l.sfgeui */ LOG_DIS("l.sfgeui r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_GEU, cpu_sr_f, cpu_R[ra], I16); break; case 0x4: /* l.sfltui */ LOG_DIS("l.sfltui r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_LTU, cpu_sr_f, cpu_R[ra], I16); break; case 0x5: /* l.sfleui */ LOG_DIS("l.sfleui r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_LEU, cpu_sr_f, cpu_R[ra], I16); break; case 0xa: /* l.sfgtsi */ LOG_DIS("l.sfgtsi r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_GT, cpu_sr_f, cpu_R[ra], I16); break; case 0xb: /* l.sfgesi */ LOG_DIS("l.sfgesi r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_GE, cpu_sr_f, cpu_R[ra], I16); break; case 0xc: /* l.sfltsi */ LOG_DIS("l.sfltsi r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_LT, cpu_sr_f, cpu_R[ra], I16); break; case 0xd: /* l.sflesi */ LOG_DIS("l.sflesi r%d, %d\n", ra, I16); tcg_gen_setcondi_tl(TCG_COND_LE, cpu_sr_f, cpu_R[ra], I16); break; default: gen_illegal_exception(dc); break; } } static void dec_sys(DisasContext *dc, uint32_t insn) { uint32_t op0; uint32_t K16; op0 = extract32(insn, 16, 10); K16 = extract32(insn, 0, 16); switch (op0) { case 0x000: /* l.sys */ LOG_DIS("l.sys %d\n", K16); tcg_gen_movi_tl(cpu_pc, dc->pc); gen_exception(dc, EXCP_SYSCALL); dc->is_jmp = DISAS_UPDATE; break; case 0x100: /* l.trap */ LOG_DIS("l.trap %d\n", K16); tcg_gen_movi_tl(cpu_pc, dc->pc); gen_exception(dc, EXCP_TRAP); break; case 0x300: /* l.csync */ LOG_DIS("l.csync\n"); break; case 0x200: /* l.msync */ LOG_DIS("l.msync\n"); tcg_gen_mb(TCG_MO_ALL); break; case 0x270: /* l.psync */ LOG_DIS("l.psync\n"); break; default: gen_illegal_exception(dc); break; } } static void dec_float(DisasContext *dc, uint32_t insn) { uint32_t op0; uint32_t ra, rb, rd; op0 = extract32(insn, 0, 8); ra = extract32(insn, 16, 5); rb = extract32(insn, 11, 5); rd = extract32(insn, 21, 5); switch (op0) { case 0x00: /* lf.add.s */ LOG_DIS("lf.add.s r%d, r%d, r%d\n", rd, ra, rb); check_r0_write(rd); gen_helper_float_add_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x01: /* lf.sub.s */ LOG_DIS("lf.sub.s r%d, r%d, r%d\n", rd, ra, rb); check_r0_write(rd); gen_helper_float_sub_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x02: /* lf.mul.s */ LOG_DIS("lf.mul.s r%d, r%d, r%d\n", rd, ra, rb); check_r0_write(rd); gen_helper_float_mul_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x03: /* lf.div.s */ LOG_DIS("lf.div.s r%d, r%d, r%d\n", rd, ra, rb); check_r0_write(rd); gen_helper_float_div_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x04: /* lf.itof.s */ LOG_DIS("lf.itof r%d, r%d\n", rd, ra); check_r0_write(rd); gen_helper_itofs(cpu_R[rd], cpu_env, cpu_R[ra]); break; case 0x05: /* lf.ftoi.s */ LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra); check_r0_write(rd); gen_helper_ftois(cpu_R[rd], cpu_env, cpu_R[ra]); break; case 0x06: /* lf.rem.s */ LOG_DIS("lf.rem.s r%d, r%d, r%d\n", rd, ra, rb); check_r0_write(rd); gen_helper_float_rem_s(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x07: /* lf.madd.s */ LOG_DIS("lf.madd.s r%d, r%d, r%d\n", rd, ra, rb); check_r0_write(rd); gen_helper_float_madd_s(cpu_R[rd], cpu_env, cpu_R[rd], cpu_R[ra], cpu_R[rb]); break; case 0x08: /* lf.sfeq.s */ LOG_DIS("lf.sfeq.s r%d, r%d\n", ra, rb); gen_helper_float_eq_s(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x09: /* lf.sfne.s */ LOG_DIS("lf.sfne.s r%d, r%d\n", ra, rb); gen_helper_float_ne_s(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x0a: /* lf.sfgt.s */ LOG_DIS("lf.sfgt.s r%d, r%d\n", ra, rb); gen_helper_float_gt_s(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x0b: /* lf.sfge.s */ LOG_DIS("lf.sfge.s r%d, r%d\n", ra, rb); gen_helper_float_ge_s(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x0c: /* lf.sflt.s */ LOG_DIS("lf.sflt.s r%d, r%d\n", ra, rb); gen_helper_float_lt_s(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x0d: /* lf.sfle.s */ LOG_DIS("lf.sfle.s r%d, r%d\n", ra, rb); gen_helper_float_le_s(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); break; /* not used yet, open it when we need or64. */ /*#ifdef TARGET_OPENRISC64 case 0x10: lf.add.d LOG_DIS("lf.add.d r%d, r%d, r%d\n", rd, ra, rb); check_of64s(dc); check_r0_write(rd); gen_helper_float_add_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x11: lf.sub.d LOG_DIS("lf.sub.d r%d, r%d, r%d\n", rd, ra, rb); check_of64s(dc); check_r0_write(rd); gen_helper_float_sub_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x12: lf.mul.d LOG_DIS("lf.mul.d r%d, r%d, r%d\n", rd, ra, rb); check_of64s(dc); check_r0_write(rd); gen_helper_float_mul_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x13: lf.div.d LOG_DIS("lf.div.d r%d, r%d, r%d\n", rd, ra, rb); check_of64s(dc); check_r0_write(rd); gen_helper_float_div_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x14: lf.itof.d LOG_DIS("lf.itof r%d, r%d\n", rd, ra); check_of64s(dc); check_r0_write(rd); gen_helper_itofd(cpu_R[rd], cpu_env, cpu_R[ra]); break; case 0x15: lf.ftoi.d LOG_DIS("lf.ftoi r%d, r%d\n", rd, ra); check_of64s(dc); check_r0_write(rd); gen_helper_ftoid(cpu_R[rd], cpu_env, cpu_R[ra]); break; case 0x16: lf.rem.d LOG_DIS("lf.rem.d r%d, r%d, r%d\n", rd, ra, rb); check_of64s(dc); check_r0_write(rd); gen_helper_float_rem_d(cpu_R[rd], cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x17: lf.madd.d LOG_DIS("lf.madd.d r%d, r%d, r%d\n", rd, ra, rb); check_of64s(dc); check_r0_write(rd); gen_helper_float_madd_d(cpu_R[rd], cpu_env, cpu_R[rd], cpu_R[ra], cpu_R[rb]); break; case 0x18: lf.sfeq.d LOG_DIS("lf.sfeq.d r%d, r%d\n", ra, rb); check_of64s(dc); gen_helper_float_eq_d(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x1a: lf.sfgt.d LOG_DIS("lf.sfgt.d r%d, r%d\n", ra, rb); check_of64s(dc); gen_helper_float_gt_d(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x1b: lf.sfge.d LOG_DIS("lf.sfge.d r%d, r%d\n", ra, rb); check_of64s(dc); gen_helper_float_ge_d(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x19: lf.sfne.d LOG_DIS("lf.sfne.d r%d, r%d\n", ra, rb); check_of64s(dc); gen_helper_float_ne_d(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x1c: lf.sflt.d LOG_DIS("lf.sflt.d r%d, r%d\n", ra, rb); check_of64s(dc); gen_helper_float_lt_d(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); break; case 0x1d: lf.sfle.d LOG_DIS("lf.sfle.d r%d, r%d\n", ra, rb); check_of64s(dc); gen_helper_float_le_d(cpu_sr_f, cpu_env, cpu_R[ra], cpu_R[rb]); break; #endif*/ default: gen_illegal_exception(dc); break; } } static void disas_openrisc_insn(DisasContext *dc, OpenRISCCPU *cpu) { uint32_t op0; uint32_t insn; insn = cpu_ldl_code(&cpu->env, dc->pc); op0 = extract32(insn, 26, 6); switch (op0) { case 0x06: dec_M(dc, insn); break; case 0x08: dec_sys(dc, insn); break; case 0x2e: dec_logic(dc, insn); break; case 0x2f: dec_compi(dc, insn); break; case 0x31: dec_mac(dc, insn); break; case 0x32: dec_float(dc, insn); break; case 0x38: dec_calc(dc, insn); break; case 0x39: dec_comp(dc, insn); break; default: dec_misc(dc, insn); break; } } void gen_intermediate_code(CPUState *cs, struct TranslationBlock *tb) { CPUOpenRISCState *env = cs->env_ptr; OpenRISCCPU *cpu = openrisc_env_get_cpu(env); struct DisasContext ctx, *dc = &ctx; uint32_t pc_start; uint32_t next_page_start; int num_insns; int max_insns; pc_start = tb->pc; dc->tb = tb; dc->is_jmp = DISAS_NEXT; dc->pc = pc_start; dc->mem_idx = cpu_mmu_index(&cpu->env, false); dc->tb_flags = tb->flags; dc->delayed_branch = (dc->tb_flags & TB_FLAGS_DFLAG) != 0; dc->singlestep_enabled = cs->singlestep_enabled; next_page_start = (pc_start & TARGET_PAGE_MASK) + TARGET_PAGE_SIZE; num_insns = 0; max_insns = tb->cflags & CF_COUNT_MASK; if (max_insns == 0) { max_insns = CF_COUNT_MASK; } if (max_insns > TCG_MAX_INSNS) { max_insns = TCG_MAX_INSNS; } if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM) && qemu_log_in_addr_range(pc_start)) { qemu_log_lock(); qemu_log("----------------\n"); qemu_log("IN: %s\n", lookup_symbol(pc_start)); } gen_tb_start(tb); /* Allow the TCG optimizer to see that R0 == 0, when it's true, which is the common case. */ if (dc->tb_flags & TB_FLAGS_R0_0) { cpu_R[0] = tcg_const_tl(0); } else { cpu_R[0] = cpu_R0; } do { tcg_gen_insn_start(dc->pc, (dc->delayed_branch ? 1 : 0) | (num_insns ? 2 : 0)); num_insns++; if (unlikely(cpu_breakpoint_test(cs, dc->pc, BP_ANY))) { tcg_gen_movi_tl(cpu_pc, dc->pc); gen_exception(dc, EXCP_DEBUG); dc->is_jmp = DISAS_UPDATE; /* The address covered by the breakpoint must be included in [tb->pc, tb->pc + tb->size) in order to for it to be properly cleared -- thus we increment the PC here so that the logic setting tb->size below does the right thing. */ dc->pc += 4; break; } if (num_insns == max_insns && (tb->cflags & CF_LAST_IO)) { gen_io_start(); } disas_openrisc_insn(dc, cpu); dc->pc = dc->pc + 4; /* delay slot */ if (dc->delayed_branch) { dc->delayed_branch--; if (!dc->delayed_branch) { tcg_gen_mov_tl(cpu_pc, jmp_pc); tcg_gen_discard_tl(jmp_pc); dc->is_jmp = DISAS_UPDATE; break; } } } while (!dc->is_jmp && !tcg_op_buf_full() && !cs->singlestep_enabled && !singlestep && (dc->pc < next_page_start) && num_insns < max_insns); if (tb->cflags & CF_LAST_IO) { gen_io_end(); } if ((dc->tb_flags & TB_FLAGS_DFLAG ? 1 : 0) != (dc->delayed_branch != 0)) { tcg_gen_movi_i32(cpu_dflag, dc->delayed_branch != 0); } tcg_gen_movi_tl(cpu_ppc, dc->pc - 4); if (dc->is_jmp == DISAS_NEXT) { dc->is_jmp = DISAS_UPDATE; tcg_gen_movi_tl(cpu_pc, dc->pc); } if (unlikely(cs->singlestep_enabled)) { gen_exception(dc, EXCP_DEBUG); } else { switch (dc->is_jmp) { case DISAS_NEXT: gen_goto_tb(dc, 0, dc->pc); break; default: case DISAS_JUMP: break; case DISAS_UPDATE: /* indicate that the hash table must be used to find the next TB */ tcg_gen_exit_tb(0); break; case DISAS_TB_JUMP: /* nothing more to generate */ break; } } gen_tb_end(tb, num_insns); tb->size = dc->pc - pc_start; tb->icount = num_insns; if (qemu_loglevel_mask(CPU_LOG_TB_IN_ASM) && qemu_log_in_addr_range(pc_start)) { log_target_disas(cs, pc_start, tb->size, 0); qemu_log("\n"); qemu_log_unlock(); } } void openrisc_cpu_dump_state(CPUState *cs, FILE *f, fprintf_function cpu_fprintf, int flags) { OpenRISCCPU *cpu = OPENRISC_CPU(cs); CPUOpenRISCState *env = &cpu->env; int i; cpu_fprintf(f, "PC=%08x\n", env->pc); for (i = 0; i < 32; ++i) { cpu_fprintf(f, "R%02d=%08x%c", i, cpu_get_gpr(env, i), (i % 4) == 3 ? '\n' : ' '); } } void restore_state_to_opc(CPUOpenRISCState *env, TranslationBlock *tb, target_ulong *data) { env->pc = data[0]; env->dflag = data[1] & 1; if (data[1] & 2) { env->ppc = env->pc - 4; } }