| /* |
| SPARC translation |
| |
| Copyright (C) 2003 Thomas M. Ogrisegg <tom@fnord.at> |
| Copyright (C) 2003 Fabrice Bellard |
| |
| 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, write to the Free Software |
| Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA |
| */ |
| |
| /* |
| TODO-list: |
| |
| NPC/PC static optimisations (use JUMP_TB when possible) |
| FPU-Instructions |
| Privileged instructions |
| Coprocessor-Instructions |
| Optimize synthetic instructions |
| Optional alignment and privileged instruction check |
| */ |
| |
| #include <stdarg.h> |
| #include <stdlib.h> |
| #include <stdio.h> |
| #include <string.h> |
| #include <inttypes.h> |
| |
| #include "cpu.h" |
| #include "exec-all.h" |
| #include "disas.h" |
| |
| #define DEBUG_DISAS |
| |
| #define DYNAMIC_PC 1 /* dynamic pc value */ |
| #define JUMP_PC 2 /* dynamic pc value which takes only two values |
| according to jump_pc[T2] */ |
| |
| typedef struct DisasContext { |
| target_ulong pc; /* current Program Counter: integer or DYNAMIC_PC */ |
| target_ulong npc; /* next PC: integer or DYNAMIC_PC or JUMP_PC */ |
| target_ulong jump_pc[2]; /* used when JUMP_PC pc value is used */ |
| int is_br; |
| int mem_idx; |
| struct TranslationBlock *tb; |
| } DisasContext; |
| |
| static uint16_t *gen_opc_ptr; |
| static uint32_t *gen_opparam_ptr; |
| extern FILE *logfile; |
| extern int loglevel; |
| |
| enum { |
| #define DEF(s,n,copy_size) INDEX_op_ ## s, |
| #include "opc.h" |
| #undef DEF |
| NB_OPS |
| }; |
| |
| #include "gen-op.h" |
| |
| #define GET_FIELD(X, FROM, TO) \ |
| ((X) >> (31 - (TO)) & ((1 << ((TO) - (FROM) + 1)) - 1)) |
| |
| #define IS_IMM (insn & (1<<13)) |
| |
| static void disas_sparc_insn(DisasContext * dc); |
| |
| static GenOpFunc *gen_op_movl_TN_reg[2][32] = { |
| { |
| gen_op_movl_g0_T0, |
| gen_op_movl_g1_T0, |
| gen_op_movl_g2_T0, |
| gen_op_movl_g3_T0, |
| gen_op_movl_g4_T0, |
| gen_op_movl_g5_T0, |
| gen_op_movl_g6_T0, |
| gen_op_movl_g7_T0, |
| gen_op_movl_o0_T0, |
| gen_op_movl_o1_T0, |
| gen_op_movl_o2_T0, |
| gen_op_movl_o3_T0, |
| gen_op_movl_o4_T0, |
| gen_op_movl_o5_T0, |
| gen_op_movl_o6_T0, |
| gen_op_movl_o7_T0, |
| gen_op_movl_l0_T0, |
| gen_op_movl_l1_T0, |
| gen_op_movl_l2_T0, |
| gen_op_movl_l3_T0, |
| gen_op_movl_l4_T0, |
| gen_op_movl_l5_T0, |
| gen_op_movl_l6_T0, |
| gen_op_movl_l7_T0, |
| gen_op_movl_i0_T0, |
| gen_op_movl_i1_T0, |
| gen_op_movl_i2_T0, |
| gen_op_movl_i3_T0, |
| gen_op_movl_i4_T0, |
| gen_op_movl_i5_T0, |
| gen_op_movl_i6_T0, |
| gen_op_movl_i7_T0, |
| }, |
| { |
| gen_op_movl_g0_T1, |
| gen_op_movl_g1_T1, |
| gen_op_movl_g2_T1, |
| gen_op_movl_g3_T1, |
| gen_op_movl_g4_T1, |
| gen_op_movl_g5_T1, |
| gen_op_movl_g6_T1, |
| gen_op_movl_g7_T1, |
| gen_op_movl_o0_T1, |
| gen_op_movl_o1_T1, |
| gen_op_movl_o2_T1, |
| gen_op_movl_o3_T1, |
| gen_op_movl_o4_T1, |
| gen_op_movl_o5_T1, |
| gen_op_movl_o6_T1, |
| gen_op_movl_o7_T1, |
| gen_op_movl_l0_T1, |
| gen_op_movl_l1_T1, |
| gen_op_movl_l2_T1, |
| gen_op_movl_l3_T1, |
| gen_op_movl_l4_T1, |
| gen_op_movl_l5_T1, |
| gen_op_movl_l6_T1, |
| gen_op_movl_l7_T1, |
| gen_op_movl_i0_T1, |
| gen_op_movl_i1_T1, |
| gen_op_movl_i2_T1, |
| gen_op_movl_i3_T1, |
| gen_op_movl_i4_T1, |
| gen_op_movl_i5_T1, |
| gen_op_movl_i6_T1, |
| gen_op_movl_i7_T1, |
| } |
| }; |
| |
| static GenOpFunc *gen_op_movl_reg_TN[3][32] = { |
| { |
| gen_op_movl_T0_g0, |
| gen_op_movl_T0_g1, |
| gen_op_movl_T0_g2, |
| gen_op_movl_T0_g3, |
| gen_op_movl_T0_g4, |
| gen_op_movl_T0_g5, |
| gen_op_movl_T0_g6, |
| gen_op_movl_T0_g7, |
| gen_op_movl_T0_o0, |
| gen_op_movl_T0_o1, |
| gen_op_movl_T0_o2, |
| gen_op_movl_T0_o3, |
| gen_op_movl_T0_o4, |
| gen_op_movl_T0_o5, |
| gen_op_movl_T0_o6, |
| gen_op_movl_T0_o7, |
| gen_op_movl_T0_l0, |
| gen_op_movl_T0_l1, |
| gen_op_movl_T0_l2, |
| gen_op_movl_T0_l3, |
| gen_op_movl_T0_l4, |
| gen_op_movl_T0_l5, |
| gen_op_movl_T0_l6, |
| gen_op_movl_T0_l7, |
| gen_op_movl_T0_i0, |
| gen_op_movl_T0_i1, |
| gen_op_movl_T0_i2, |
| gen_op_movl_T0_i3, |
| gen_op_movl_T0_i4, |
| gen_op_movl_T0_i5, |
| gen_op_movl_T0_i6, |
| gen_op_movl_T0_i7, |
| }, |
| { |
| gen_op_movl_T1_g0, |
| gen_op_movl_T1_g1, |
| gen_op_movl_T1_g2, |
| gen_op_movl_T1_g3, |
| gen_op_movl_T1_g4, |
| gen_op_movl_T1_g5, |
| gen_op_movl_T1_g6, |
| gen_op_movl_T1_g7, |
| gen_op_movl_T1_o0, |
| gen_op_movl_T1_o1, |
| gen_op_movl_T1_o2, |
| gen_op_movl_T1_o3, |
| gen_op_movl_T1_o4, |
| gen_op_movl_T1_o5, |
| gen_op_movl_T1_o6, |
| gen_op_movl_T1_o7, |
| gen_op_movl_T1_l0, |
| gen_op_movl_T1_l1, |
| gen_op_movl_T1_l2, |
| gen_op_movl_T1_l3, |
| gen_op_movl_T1_l4, |
| gen_op_movl_T1_l5, |
| gen_op_movl_T1_l6, |
| gen_op_movl_T1_l7, |
| gen_op_movl_T1_i0, |
| gen_op_movl_T1_i1, |
| gen_op_movl_T1_i2, |
| gen_op_movl_T1_i3, |
| gen_op_movl_T1_i4, |
| gen_op_movl_T1_i5, |
| gen_op_movl_T1_i6, |
| gen_op_movl_T1_i7, |
| }, |
| { |
| gen_op_movl_T2_g0, |
| gen_op_movl_T2_g1, |
| gen_op_movl_T2_g2, |
| gen_op_movl_T2_g3, |
| gen_op_movl_T2_g4, |
| gen_op_movl_T2_g5, |
| gen_op_movl_T2_g6, |
| gen_op_movl_T2_g7, |
| gen_op_movl_T2_o0, |
| gen_op_movl_T2_o1, |
| gen_op_movl_T2_o2, |
| gen_op_movl_T2_o3, |
| gen_op_movl_T2_o4, |
| gen_op_movl_T2_o5, |
| gen_op_movl_T2_o6, |
| gen_op_movl_T2_o7, |
| gen_op_movl_T2_l0, |
| gen_op_movl_T2_l1, |
| gen_op_movl_T2_l2, |
| gen_op_movl_T2_l3, |
| gen_op_movl_T2_l4, |
| gen_op_movl_T2_l5, |
| gen_op_movl_T2_l6, |
| gen_op_movl_T2_l7, |
| gen_op_movl_T2_i0, |
| gen_op_movl_T2_i1, |
| gen_op_movl_T2_i2, |
| gen_op_movl_T2_i3, |
| gen_op_movl_T2_i4, |
| gen_op_movl_T2_i5, |
| gen_op_movl_T2_i6, |
| gen_op_movl_T2_i7, |
| } |
| }; |
| |
| static GenOpFunc1 *gen_op_movl_TN_im[3] = { |
| gen_op_movl_T0_im, |
| gen_op_movl_T1_im, |
| gen_op_movl_T2_im |
| }; |
| |
| #define GEN32(func, NAME) \ |
| static GenOpFunc *NAME ## _table [32] = { \ |
| NAME ## 0, NAME ## 1, NAME ## 2, NAME ## 3, \ |
| NAME ## 4, NAME ## 5, NAME ## 6, NAME ## 7, \ |
| NAME ## 8, NAME ## 9, NAME ## 10, NAME ## 11, \ |
| NAME ## 12, NAME ## 13, NAME ## 14, NAME ## 15, \ |
| NAME ## 16, NAME ## 17, NAME ## 18, NAME ## 19, \ |
| NAME ## 20, NAME ## 21, NAME ## 22, NAME ## 23, \ |
| NAME ## 24, NAME ## 25, NAME ## 26, NAME ## 27, \ |
| NAME ## 28, NAME ## 29, NAME ## 30, NAME ## 31, \ |
| }; \ |
| static inline void func(int n) \ |
| { \ |
| NAME ## _table[n](); \ |
| } |
| |
| /* floating point registers moves */ |
| GEN32(gen_op_load_fpr_FT0, gen_op_load_fpr_FT0_fprf); |
| GEN32(gen_op_load_fpr_FT1, gen_op_load_fpr_FT1_fprf); |
| GEN32(gen_op_load_fpr_FT2, gen_op_load_fpr_FT2_fprf); |
| GEN32(gen_op_store_FT0_fpr, gen_op_store_FT0_fpr_fprf); |
| GEN32(gen_op_store_FT1_fpr, gen_op_store_FT1_fpr_fprf); |
| GEN32(gen_op_store_FT2_fpr, gen_op_store_FT2_fpr_fprf); |
| |
| GEN32(gen_op_load_fpr_DT0, gen_op_load_fpr_DT0_fprf); |
| GEN32(gen_op_load_fpr_DT1, gen_op_load_fpr_DT1_fprf); |
| GEN32(gen_op_load_fpr_DT2, gen_op_load_fpr_DT2_fprf); |
| GEN32(gen_op_store_DT0_fpr, gen_op_store_DT0_fpr_fprf); |
| GEN32(gen_op_store_DT1_fpr, gen_op_store_DT1_fpr_fprf); |
| GEN32(gen_op_store_DT2_fpr, gen_op_store_DT2_fpr_fprf); |
| |
| #if defined(CONFIG_USER_ONLY) |
| #define gen_op_ldst(name) gen_op_##name##_raw() |
| #define OP_LD_TABLE(width) |
| #define supervisor(dc) 0 |
| #else |
| #define gen_op_ldst(name) (*gen_op_##name[dc->mem_idx])() |
| #define OP_LD_TABLE(width) \ |
| static GenOpFunc *gen_op_##width[] = { \ |
| &gen_op_##width##_user, \ |
| &gen_op_##width##_kernel, \ |
| }; \ |
| \ |
| static void gen_op_##width##a(int insn, int is_ld, int size, int sign) \ |
| { \ |
| int asi; \ |
| \ |
| asi = GET_FIELD(insn, 19, 26); \ |
| switch (asi) { \ |
| case 10: /* User data access */ \ |
| gen_op_##width##_user(); \ |
| break; \ |
| case 11: /* Supervisor data access */ \ |
| gen_op_##width##_kernel(); \ |
| break; \ |
| case 0x20 ... 0x2f: /* MMU passthrough */ \ |
| if (is_ld) \ |
| gen_op_ld_asi(asi, size, sign); \ |
| else \ |
| gen_op_st_asi(asi, size, sign); \ |
| break; \ |
| default: \ |
| if (is_ld) \ |
| gen_op_ld_asi(asi, size, sign); \ |
| else \ |
| gen_op_st_asi(asi, size, sign); \ |
| break; \ |
| } \ |
| } |
| |
| #define supervisor(dc) (dc->mem_idx == 1) |
| #endif |
| |
| OP_LD_TABLE(ld); |
| OP_LD_TABLE(st); |
| OP_LD_TABLE(ldub); |
| OP_LD_TABLE(lduh); |
| OP_LD_TABLE(ldsb); |
| OP_LD_TABLE(ldsh); |
| OP_LD_TABLE(stb); |
| OP_LD_TABLE(sth); |
| OP_LD_TABLE(std); |
| OP_LD_TABLE(ldstub); |
| OP_LD_TABLE(swap); |
| OP_LD_TABLE(ldd); |
| OP_LD_TABLE(stf); |
| OP_LD_TABLE(stdf); |
| OP_LD_TABLE(ldf); |
| OP_LD_TABLE(lddf); |
| |
| static inline void gen_movl_imm_TN(int reg, int imm) |
| { |
| gen_op_movl_TN_im[reg] (imm); |
| } |
| |
| static inline void gen_movl_imm_T1(int val) |
| { |
| gen_movl_imm_TN(1, val); |
| } |
| |
| static inline void gen_movl_imm_T0(int val) |
| { |
| gen_movl_imm_TN(0, val); |
| } |
| |
| static inline void gen_movl_reg_TN(int reg, int t) |
| { |
| if (reg) |
| gen_op_movl_reg_TN[t][reg] (); |
| else |
| gen_movl_imm_TN(t, 0); |
| } |
| |
| static inline void gen_movl_reg_T0(int reg) |
| { |
| gen_movl_reg_TN(reg, 0); |
| } |
| |
| static inline void gen_movl_reg_T1(int reg) |
| { |
| gen_movl_reg_TN(reg, 1); |
| } |
| |
| static inline void gen_movl_reg_T2(int reg) |
| { |
| gen_movl_reg_TN(reg, 2); |
| } |
| |
| static inline void gen_movl_TN_reg(int reg, int t) |
| { |
| if (reg) |
| gen_op_movl_TN_reg[t][reg] (); |
| } |
| |
| static inline void gen_movl_T0_reg(int reg) |
| { |
| gen_movl_TN_reg(reg, 0); |
| } |
| |
| static inline void gen_movl_T1_reg(int reg) |
| { |
| gen_movl_TN_reg(reg, 1); |
| } |
| |
| /* call this function before using T2 as it may have been set for a jump */ |
| static inline void flush_T2(DisasContext * dc) |
| { |
| if (dc->npc == JUMP_PC) { |
| gen_op_generic_branch(dc->jump_pc[0], dc->jump_pc[1]); |
| dc->npc = DYNAMIC_PC; |
| } |
| } |
| |
| static inline void save_npc(DisasContext * dc) |
| { |
| if (dc->npc == JUMP_PC) { |
| gen_op_generic_branch(dc->jump_pc[0], dc->jump_pc[1]); |
| dc->npc = DYNAMIC_PC; |
| } else if (dc->npc != DYNAMIC_PC) { |
| gen_op_movl_npc_im(dc->npc); |
| } |
| } |
| |
| static inline void save_state(DisasContext * dc) |
| { |
| gen_op_jmp_im(dc->pc); |
| save_npc(dc); |
| } |
| |
| static inline void gen_mov_pc_npc(DisasContext * dc) |
| { |
| if (dc->npc == JUMP_PC) { |
| gen_op_generic_branch(dc->jump_pc[0], dc->jump_pc[1]); |
| gen_op_mov_pc_npc(); |
| dc->pc = DYNAMIC_PC; |
| } else if (dc->npc == DYNAMIC_PC) { |
| gen_op_mov_pc_npc(); |
| dc->pc = DYNAMIC_PC; |
| } else { |
| dc->pc = dc->npc; |
| } |
| } |
| |
| static void gen_cond(int cond) |
| { |
| switch (cond) { |
| case 0x1: |
| gen_op_eval_be(); |
| break; |
| case 0x2: |
| gen_op_eval_ble(); |
| break; |
| case 0x3: |
| gen_op_eval_bl(); |
| break; |
| case 0x4: |
| gen_op_eval_bleu(); |
| break; |
| case 0x5: |
| gen_op_eval_bcs(); |
| break; |
| case 0x6: |
| gen_op_eval_bneg(); |
| break; |
| case 0x7: |
| gen_op_eval_bvs(); |
| break; |
| case 0x9: |
| gen_op_eval_bne(); |
| break; |
| case 0xa: |
| gen_op_eval_bg(); |
| break; |
| case 0xb: |
| gen_op_eval_bge(); |
| break; |
| case 0xc: |
| gen_op_eval_bgu(); |
| break; |
| case 0xd: |
| gen_op_eval_bcc(); |
| break; |
| case 0xe: |
| gen_op_eval_bpos(); |
| break; |
| default: |
| case 0xf: |
| gen_op_eval_bvc(); |
| break; |
| } |
| } |
| |
| static void gen_fcond(int cond) |
| { |
| switch (cond) { |
| case 0x1: |
| gen_op_eval_fbne(); |
| break; |
| case 0x2: |
| gen_op_eval_fblg(); |
| break; |
| case 0x3: |
| gen_op_eval_fbul(); |
| break; |
| case 0x4: |
| gen_op_eval_fbl(); |
| break; |
| case 0x5: |
| gen_op_eval_fbug(); |
| break; |
| case 0x6: |
| gen_op_eval_fbg(); |
| break; |
| case 0x7: |
| gen_op_eval_fbu(); |
| break; |
| case 0x9: |
| gen_op_eval_fbe(); |
| break; |
| case 0xa: |
| gen_op_eval_fbue(); |
| break; |
| case 0xb: |
| gen_op_eval_fbge(); |
| break; |
| case 0xc: |
| gen_op_eval_fbuge(); |
| break; |
| case 0xd: |
| gen_op_eval_fble(); |
| break; |
| case 0xe: |
| gen_op_eval_fbule(); |
| break; |
| default: |
| case 0xf: |
| gen_op_eval_fbo(); |
| break; |
| } |
| } |
| |
| /* XXX: potentially incorrect if dynamic npc */ |
| static void do_branch(DisasContext * dc, int32_t offset, uint32_t insn) |
| { |
| unsigned int cond = GET_FIELD(insn, 3, 6), a = (insn & (1 << 29)); |
| target_ulong target = dc->pc + offset; |
| |
| if (cond == 0x0) { |
| /* unconditional not taken */ |
| if (a) { |
| dc->pc = dc->npc + 4; |
| dc->npc = dc->pc + 4; |
| } else { |
| dc->pc = dc->npc; |
| dc->npc = dc->pc + 4; |
| } |
| } else if (cond == 0x8) { |
| /* unconditional taken */ |
| if (a) { |
| dc->pc = target; |
| dc->npc = dc->pc + 4; |
| } else { |
| dc->pc = dc->npc; |
| dc->npc = target; |
| } |
| } else { |
| flush_T2(dc); |
| gen_cond(cond); |
| if (a) { |
| gen_op_branch_a((long)dc->tb, target, dc->npc); |
| dc->is_br = 1; |
| } else { |
| dc->pc = dc->npc; |
| dc->jump_pc[0] = target; |
| dc->jump_pc[1] = dc->npc + 4; |
| dc->npc = JUMP_PC; |
| } |
| } |
| } |
| |
| /* XXX: potentially incorrect if dynamic npc */ |
| static void do_fbranch(DisasContext * dc, int32_t offset, uint32_t insn) |
| { |
| unsigned int cond = GET_FIELD(insn, 3, 6), a = (insn & (1 << 29)); |
| target_ulong target = dc->pc + offset; |
| |
| if (cond == 0x0) { |
| /* unconditional not taken */ |
| if (a) { |
| dc->pc = dc->npc + 4; |
| dc->npc = dc->pc + 4; |
| } else { |
| dc->pc = dc->npc; |
| dc->npc = dc->pc + 4; |
| } |
| } else if (cond == 0x8) { |
| /* unconditional taken */ |
| if (a) { |
| dc->pc = target; |
| dc->npc = dc->pc + 4; |
| } else { |
| dc->pc = dc->npc; |
| dc->npc = target; |
| } |
| } else { |
| flush_T2(dc); |
| gen_fcond(cond); |
| if (a) { |
| gen_op_branch_a((long)dc->tb, target, dc->npc); |
| dc->is_br = 1; |
| } else { |
| dc->pc = dc->npc; |
| dc->jump_pc[0] = target; |
| dc->jump_pc[1] = dc->npc + 4; |
| dc->npc = JUMP_PC; |
| } |
| } |
| } |
| |
| #define GET_FIELDs(x,a,b) sign_extend (GET_FIELD(x,a,b), (b) - (a) + 1) |
| |
| static int sign_extend(int x, int len) |
| { |
| len = 32 - len; |
| return (x << len) >> len; |
| } |
| |
| /* before an instruction, dc->pc must be static */ |
| static void disas_sparc_insn(DisasContext * dc) |
| { |
| unsigned int insn, opc, rs1, rs2, rd; |
| |
| insn = ldl_code(dc->pc); |
| opc = GET_FIELD(insn, 0, 1); |
| |
| rd = GET_FIELD(insn, 2, 6); |
| switch (opc) { |
| case 0: /* branches/sethi */ |
| { |
| unsigned int xop = GET_FIELD(insn, 7, 9); |
| int32_t target; |
| target = GET_FIELD(insn, 10, 31); |
| switch (xop) { |
| case 0x0: /* UNIMPL */ |
| case 0x1: /* V9 BPcc */ |
| case 0x3: /* V9 BPr */ |
| case 0x5: /* V9 FBPcc */ |
| default: |
| goto illegal_insn; |
| case 0x2: /* BN+x */ |
| { |
| target <<= 2; |
| target = sign_extend(target, 22); |
| do_branch(dc, target, insn); |
| goto jmp_insn; |
| } |
| case 0x6: /* FBN+x */ |
| { |
| #if !defined(CONFIG_USER_ONLY) |
| gen_op_trap_ifnofpu(); |
| #endif |
| target <<= 2; |
| target = sign_extend(target, 22); |
| do_fbranch(dc, target, insn); |
| goto jmp_insn; |
| } |
| case 0x4: /* SETHI */ |
| #define OPTIM |
| #if defined(OPTIM) |
| if (rd) { // nop |
| #endif |
| gen_movl_imm_T0(target << 10); |
| gen_movl_T0_reg(rd); |
| #if defined(OPTIM) |
| } |
| #endif |
| break; |
| } |
| break; |
| } |
| break; |
| case 1: |
| /*CALL*/ { |
| target_long target = GET_FIELDs(insn, 2, 31) << 2; |
| |
| gen_op_movl_T0_im(dc->pc); |
| gen_movl_T0_reg(15); |
| target += dc->pc; |
| gen_mov_pc_npc(dc); |
| dc->npc = target; |
| } |
| goto jmp_insn; |
| case 2: /* FPU & Logical Operations */ |
| { |
| unsigned int xop = GET_FIELD(insn, 7, 12); |
| if (xop == 0x3a) { /* generate trap */ |
| int cond; |
| rs1 = GET_FIELD(insn, 13, 17); |
| gen_movl_reg_T0(rs1); |
| if (IS_IMM) { |
| rs2 = GET_FIELD(insn, 25, 31); |
| #if defined(OPTIM) |
| if (rs2 != 0) { |
| #endif |
| gen_movl_imm_T1(rs2); |
| gen_op_add_T1_T0(); |
| #if defined(OPTIM) |
| } |
| #endif |
| } else { |
| rs2 = GET_FIELD(insn, 27, 31); |
| #if defined(OPTIM) |
| if (rs2 != 0) { |
| #endif |
| gen_movl_reg_T1(rs2); |
| gen_op_add_T1_T0(); |
| #if defined(OPTIM) |
| } |
| #endif |
| } |
| save_state(dc); |
| /* V9 icc/xcc */ |
| cond = GET_FIELD(insn, 3, 6); |
| if (cond == 0x8) { |
| gen_op_trap_T0(); |
| dc->is_br = 1; |
| goto jmp_insn; |
| } else if (cond != 0) { |
| gen_cond(cond); |
| gen_op_trapcc_T0(); |
| } |
| } else if (xop == 0x28) { |
| rs1 = GET_FIELD(insn, 13, 17); |
| switch(rs1) { |
| case 0: /* rdy */ |
| gen_op_rdy(); |
| gen_movl_T0_reg(rd); |
| break; |
| case 15: /* stbar / V9 membar */ |
| break; /* no effect? */ |
| default: |
| case 0x2: /* V9 rdccr */ |
| case 0x3: /* V9 rdasi */ |
| case 0x4: /* V9 rdtick */ |
| case 0x5: /* V9 rdpc */ |
| case 0x6: /* V9 rdfprs */ |
| goto illegal_insn; |
| } |
| #if !defined(CONFIG_USER_ONLY) |
| } else if (xop == 0x29) { |
| if (!supervisor(dc)) |
| goto priv_insn; |
| gen_op_rdpsr(); |
| gen_movl_T0_reg(rd); |
| break; |
| } else if (xop == 0x2a) { |
| if (!supervisor(dc)) |
| goto priv_insn; |
| gen_op_rdwim(); |
| gen_movl_T0_reg(rd); |
| break; |
| } else if (xop == 0x2b) { |
| if (!supervisor(dc)) |
| goto priv_insn; |
| gen_op_rdtbr(); |
| gen_movl_T0_reg(rd); |
| break; |
| #endif |
| } else if (xop == 0x34) { /* FPU Operations */ |
| #if !defined(CONFIG_USER_ONLY) |
| gen_op_trap_ifnofpu(); |
| #endif |
| rs1 = GET_FIELD(insn, 13, 17); |
| rs2 = GET_FIELD(insn, 27, 31); |
| xop = GET_FIELD(insn, 18, 26); |
| switch (xop) { |
| case 0x1: /* fmovs */ |
| gen_op_load_fpr_FT0(rs2); |
| gen_op_store_FT0_fpr(rd); |
| break; |
| case 0x5: /* fnegs */ |
| gen_op_load_fpr_FT1(rs2); |
| gen_op_fnegs(); |
| gen_op_store_FT0_fpr(rd); |
| break; |
| case 0x9: /* fabss */ |
| gen_op_load_fpr_FT1(rs2); |
| gen_op_fabss(); |
| gen_op_store_FT0_fpr(rd); |
| break; |
| case 0x29: /* fsqrts */ |
| gen_op_load_fpr_FT1(rs2); |
| gen_op_fsqrts(); |
| gen_op_store_FT0_fpr(rd); |
| break; |
| case 0x2a: /* fsqrtd */ |
| gen_op_load_fpr_DT1(rs2); |
| gen_op_fsqrtd(); |
| gen_op_store_DT0_fpr(rd); |
| break; |
| case 0x2b: /* fsqrtq */ |
| goto nfpu_insn; |
| case 0x41: |
| gen_op_load_fpr_FT0(rs1); |
| gen_op_load_fpr_FT1(rs2); |
| gen_op_fadds(); |
| gen_op_store_FT0_fpr(rd); |
| break; |
| case 0x42: |
| gen_op_load_fpr_DT0(rs1); |
| gen_op_load_fpr_DT1(rs2); |
| gen_op_faddd(); |
| gen_op_store_DT0_fpr(rd); |
| break; |
| case 0x43: /* faddq */ |
| goto nfpu_insn; |
| case 0x45: |
| gen_op_load_fpr_FT0(rs1); |
| gen_op_load_fpr_FT1(rs2); |
| gen_op_fsubs(); |
| gen_op_store_FT0_fpr(rd); |
| break; |
| case 0x46: |
| gen_op_load_fpr_DT0(rs1); |
| gen_op_load_fpr_DT1(rs2); |
| gen_op_fsubd(); |
| gen_op_store_DT0_fpr(rd); |
| break; |
| case 0x47: /* fsubq */ |
| goto nfpu_insn; |
| case 0x49: |
| gen_op_load_fpr_FT0(rs1); |
| gen_op_load_fpr_FT1(rs2); |
| gen_op_fmuls(); |
| gen_op_store_FT0_fpr(rd); |
| break; |
| case 0x4a: |
| gen_op_load_fpr_DT0(rs1); |
| gen_op_load_fpr_DT1(rs2); |
| gen_op_fmuld(); |
| gen_op_store_DT0_fpr(rd); |
| break; |
| case 0x4b: /* fmulq */ |
| goto nfpu_insn; |
| case 0x4d: |
| gen_op_load_fpr_FT0(rs1); |
| gen_op_load_fpr_FT1(rs2); |
| gen_op_fdivs(); |
| gen_op_store_FT0_fpr(rd); |
| break; |
| case 0x4e: |
| gen_op_load_fpr_DT0(rs1); |
| gen_op_load_fpr_DT1(rs2); |
| gen_op_fdivd(); |
| gen_op_store_DT0_fpr(rd); |
| break; |
| case 0x4f: /* fdivq */ |
| goto nfpu_insn; |
| case 0x69: |
| gen_op_load_fpr_FT0(rs1); |
| gen_op_load_fpr_FT1(rs2); |
| gen_op_fsmuld(); |
| gen_op_store_DT0_fpr(rd); |
| break; |
| case 0x6e: /* fdmulq */ |
| goto nfpu_insn; |
| case 0xc4: |
| gen_op_load_fpr_FT1(rs2); |
| gen_op_fitos(); |
| gen_op_store_FT0_fpr(rd); |
| break; |
| case 0xc6: |
| gen_op_load_fpr_DT1(rs2); |
| gen_op_fdtos(); |
| gen_op_store_FT0_fpr(rd); |
| break; |
| case 0xc7: /* fqtos */ |
| goto nfpu_insn; |
| case 0xc8: |
| gen_op_load_fpr_FT1(rs2); |
| gen_op_fitod(); |
| gen_op_store_DT0_fpr(rd); |
| break; |
| case 0xc9: |
| gen_op_load_fpr_FT1(rs2); |
| gen_op_fstod(); |
| gen_op_store_DT0_fpr(rd); |
| break; |
| case 0xcb: /* fqtod */ |
| goto nfpu_insn; |
| case 0xcc: /* fitoq */ |
| goto nfpu_insn; |
| case 0xcd: /* fstoq */ |
| goto nfpu_insn; |
| case 0xce: /* fdtoq */ |
| goto nfpu_insn; |
| case 0xd1: |
| gen_op_load_fpr_FT1(rs2); |
| gen_op_fstoi(); |
| gen_op_store_FT0_fpr(rd); |
| break; |
| case 0xd2: |
| gen_op_load_fpr_DT1(rs2); |
| gen_op_fdtoi(); |
| gen_op_store_FT0_fpr(rd); |
| break; |
| case 0xd3: /* fqtoi */ |
| goto nfpu_insn; |
| default: |
| case 0x2: /* V9 fmovd */ |
| case 0x6: /* V9 fnegd */ |
| case 0xa: /* V9 fabsd */ |
| case 0x81: /* V9 fstox */ |
| case 0x82: /* V9 fdtox */ |
| case 0x84: /* V9 fxtos */ |
| case 0x88: /* V9 fxtod */ |
| |
| case 0x3: /* V9 fmovq */ |
| case 0x7: /* V9 fnegq */ |
| case 0xb: /* V9 fabsq */ |
| case 0x83: /* V9 fqtox */ |
| case 0x8c: /* V9 fxtoq */ |
| goto illegal_insn; |
| } |
| } else if (xop == 0x35) { /* FPU Operations */ |
| #if !defined(CONFIG_USER_ONLY) |
| gen_op_trap_ifnofpu(); |
| #endif |
| rs1 = GET_FIELD(insn, 13, 17); |
| rs2 = GET_FIELD(insn, 27, 31); |
| xop = GET_FIELD(insn, 18, 26); |
| /* V9 fmovscc: x5, cond = x >> 1 */ |
| /* V9 fmovdcc: x6, cond = x >> 1 */ |
| |
| /* V9 fmovqcc: x7, cond = x >> 1 */ |
| switch (xop) { |
| case 0x51: |
| gen_op_load_fpr_FT0(rs1); |
| gen_op_load_fpr_FT1(rs2); |
| gen_op_fcmps(); |
| break; |
| case 0x52: |
| gen_op_load_fpr_DT0(rs1); |
| gen_op_load_fpr_DT1(rs2); |
| gen_op_fcmpd(); |
| break; |
| case 0x53: /* fcmpq */ |
| goto nfpu_insn; |
| case 0x55: /* fcmpes */ |
| gen_op_load_fpr_FT0(rs1); |
| gen_op_load_fpr_FT1(rs2); |
| gen_op_fcmps(); /* XXX should trap if qNaN or sNaN */ |
| break; |
| case 0x56: /* fcmped */ |
| gen_op_load_fpr_DT0(rs1); |
| gen_op_load_fpr_DT1(rs2); |
| gen_op_fcmpd(); /* XXX should trap if qNaN or sNaN */ |
| break; |
| case 0x57: /* fcmpeq */ |
| goto nfpu_insn; |
| default: |
| goto illegal_insn; |
| } |
| #if defined(OPTIM) |
| } else if (xop == 0x2) { |
| // clr/mov shortcut |
| |
| rs1 = GET_FIELD(insn, 13, 17); |
| if (rs1 == 0) { |
| // or %g0, x, y -> mov T1, x; mov y, T1 |
| if (IS_IMM) { /* immediate */ |
| rs2 = GET_FIELDs(insn, 19, 31); |
| gen_movl_imm_T1(rs2); |
| } else { /* register */ |
| rs2 = GET_FIELD(insn, 27, 31); |
| gen_movl_reg_T1(rs2); |
| } |
| gen_movl_T1_reg(rd); |
| } else { |
| gen_movl_reg_T0(rs1); |
| if (IS_IMM) { /* immediate */ |
| // or x, #0, y -> mov T1, x; mov y, T1 |
| rs2 = GET_FIELDs(insn, 19, 31); |
| if (rs2 != 0) { |
| gen_movl_imm_T1(rs2); |
| gen_op_or_T1_T0(); |
| } |
| } else { /* register */ |
| // or x, %g0, y -> mov T1, x; mov y, T1 |
| rs2 = GET_FIELD(insn, 27, 31); |
| if (rs2 != 0) { |
| gen_movl_reg_T1(rs2); |
| gen_op_or_T1_T0(); |
| } |
| } |
| gen_movl_T0_reg(rd); |
| } |
| #endif |
| } else if (xop < 0x38) { |
| rs1 = GET_FIELD(insn, 13, 17); |
| gen_movl_reg_T0(rs1); |
| if (IS_IMM) { /* immediate */ |
| rs2 = GET_FIELDs(insn, 19, 31); |
| gen_movl_imm_T1(rs2); |
| } else { /* register */ |
| rs2 = GET_FIELD(insn, 27, 31); |
| gen_movl_reg_T1(rs2); |
| } |
| if (xop < 0x20) { |
| switch (xop & ~0x10) { |
| case 0x0: |
| if (xop & 0x10) |
| gen_op_add_T1_T0_cc(); |
| else |
| gen_op_add_T1_T0(); |
| break; |
| case 0x1: |
| gen_op_and_T1_T0(); |
| if (xop & 0x10) |
| gen_op_logic_T0_cc(); |
| break; |
| case 0x2: |
| gen_op_or_T1_T0(); |
| if (xop & 0x10) |
| gen_op_logic_T0_cc(); |
| break; |
| case 0x3: |
| gen_op_xor_T1_T0(); |
| if (xop & 0x10) |
| gen_op_logic_T0_cc(); |
| break; |
| case 0x4: |
| if (xop & 0x10) |
| gen_op_sub_T1_T0_cc(); |
| else |
| gen_op_sub_T1_T0(); |
| break; |
| case 0x5: |
| gen_op_andn_T1_T0(); |
| if (xop & 0x10) |
| gen_op_logic_T0_cc(); |
| break; |
| case 0x6: |
| gen_op_orn_T1_T0(); |
| if (xop & 0x10) |
| gen_op_logic_T0_cc(); |
| break; |
| case 0x7: |
| gen_op_xnor_T1_T0(); |
| if (xop & 0x10) |
| gen_op_logic_T0_cc(); |
| break; |
| case 0x8: |
| if (xop & 0x10) |
| gen_op_addx_T1_T0_cc(); |
| else |
| gen_op_addx_T1_T0(); |
| break; |
| case 0xa: |
| gen_op_umul_T1_T0(); |
| if (xop & 0x10) |
| gen_op_logic_T0_cc(); |
| break; |
| case 0xb: |
| gen_op_smul_T1_T0(); |
| if (xop & 0x10) |
| gen_op_logic_T0_cc(); |
| break; |
| case 0xc: |
| if (xop & 0x10) |
| gen_op_subx_T1_T0_cc(); |
| else |
| gen_op_subx_T1_T0(); |
| break; |
| case 0xe: |
| gen_op_udiv_T1_T0(); |
| if (xop & 0x10) |
| gen_op_div_cc(); |
| break; |
| case 0xf: |
| gen_op_sdiv_T1_T0(); |
| if (xop & 0x10) |
| gen_op_div_cc(); |
| break; |
| default: |
| case 0x9: /* V9 mulx */ |
| case 0xd: /* V9 udivx */ |
| goto illegal_insn; |
| } |
| gen_movl_T0_reg(rd); |
| } else { |
| switch (xop) { |
| case 0x20: /* taddcc */ |
| case 0x21: /* tsubcc */ |
| case 0x22: /* taddcctv */ |
| case 0x23: /* tsubcctv */ |
| goto illegal_insn; |
| case 0x24: /* mulscc */ |
| gen_op_mulscc_T1_T0(); |
| gen_movl_T0_reg(rd); |
| break; |
| case 0x25: /* sll, V9 sllx */ |
| gen_op_sll(); |
| gen_movl_T0_reg(rd); |
| break; |
| case 0x26: /* srl, V9 srlx */ |
| gen_op_srl(); |
| gen_movl_T0_reg(rd); |
| break; |
| case 0x27: /* sra, V9 srax */ |
| gen_op_sra(); |
| gen_movl_T0_reg(rd); |
| break; |
| case 0x30: |
| { |
| gen_op_xor_T1_T0(); |
| switch(rd) { |
| case 0: |
| gen_op_wry(); |
| break; |
| default: |
| case 0x2: /* V9 wrccr */ |
| case 0x3: /* V9 wrasi */ |
| case 0x6: /* V9 wrfprs */ |
| case 0xf: /* V9 sir */ |
| goto illegal_insn; |
| } |
| } |
| break; |
| #if !defined(CONFIG_USER_ONLY) |
| case 0x31: /* wrpsr, V9 saved, restored */ |
| { |
| if (!supervisor(dc)) |
| goto priv_insn; |
| gen_op_xor_T1_T0(); |
| gen_op_wrpsr(); |
| } |
| break; |
| case 0x32: /* wrwim, V9 wrpr */ |
| { |
| if (!supervisor(dc)) |
| goto priv_insn; |
| gen_op_xor_T1_T0(); |
| gen_op_wrwim(); |
| } |
| break; |
| case 0x33: |
| { |
| if (!supervisor(dc)) |
| goto priv_insn; |
| gen_op_xor_T1_T0(); |
| gen_op_wrtbr(); |
| } |
| break; |
| #endif |
| default: |
| case 0x2a: /* V9 rdpr */ |
| case 0x2b: /* V9 flushw */ |
| case 0x2c: /* V9 movcc */ |
| case 0x2d: /* V9 sdivx */ |
| case 0x2e: /* V9 popc */ |
| case 0x2f: /* V9 movr */ |
| goto illegal_insn; |
| } |
| } |
| } else { |
| rs1 = GET_FIELD(insn, 13, 17); |
| gen_movl_reg_T0(rs1); |
| if (IS_IMM) { /* immediate */ |
| rs2 = GET_FIELDs(insn, 19, 31); |
| #if defined(OPTIM) |
| if (rs2) { |
| #endif |
| gen_movl_imm_T1(rs2); |
| gen_op_add_T1_T0(); |
| #if defined(OPTIM) |
| } |
| #endif |
| } else { /* register */ |
| rs2 = GET_FIELD(insn, 27, 31); |
| #if defined(OPTIM) |
| if (rs2) { |
| #endif |
| gen_movl_reg_T1(rs2); |
| gen_op_add_T1_T0(); |
| #if defined(OPTIM) |
| } |
| #endif |
| } |
| switch (xop) { |
| case 0x38: /* jmpl */ |
| { |
| if (rd != 0) { |
| gen_op_movl_T1_im(dc->pc); |
| gen_movl_T1_reg(rd); |
| } |
| gen_mov_pc_npc(dc); |
| gen_op_movl_npc_T0(); |
| dc->npc = DYNAMIC_PC; |
| } |
| goto jmp_insn; |
| #if !defined(CONFIG_USER_ONLY) |
| case 0x39: /* rett, V9 return */ |
| { |
| if (!supervisor(dc)) |
| goto priv_insn; |
| gen_mov_pc_npc(dc); |
| gen_op_movl_npc_T0(); |
| dc->npc = DYNAMIC_PC; |
| gen_op_rett(); |
| } |
| goto jmp_insn; |
| #endif |
| case 0x3b: /* flush */ |
| gen_op_flush_T0(); |
| break; |
| case 0x3c: /* save */ |
| save_state(dc); |
| gen_op_save(); |
| gen_movl_T0_reg(rd); |
| break; |
| case 0x3d: /* restore */ |
| save_state(dc); |
| gen_op_restore(); |
| gen_movl_T0_reg(rd); |
| break; |
| default: |
| case 0x3e: /* V9 done/retry */ |
| goto illegal_insn; |
| } |
| } |
| break; |
| } |
| break; |
| case 3: /* load/store instructions */ |
| { |
| unsigned int xop = GET_FIELD(insn, 7, 12); |
| rs1 = GET_FIELD(insn, 13, 17); |
| gen_movl_reg_T0(rs1); |
| if (IS_IMM) { /* immediate */ |
| rs2 = GET_FIELDs(insn, 19, 31); |
| #if defined(OPTIM) |
| if (rs2 != 0) { |
| #endif |
| gen_movl_imm_T1(rs2); |
| gen_op_add_T1_T0(); |
| #if defined(OPTIM) |
| } |
| #endif |
| } else { /* register */ |
| rs2 = GET_FIELD(insn, 27, 31); |
| #if defined(OPTIM) |
| if (rs2 != 0) { |
| #endif |
| gen_movl_reg_T1(rs2); |
| gen_op_add_T1_T0(); |
| #if defined(OPTIM) |
| } |
| #endif |
| } |
| if (xop < 4 || (xop > 7 && xop < 0x14) || \ |
| (xop > 0x17 && xop < 0x20)) { |
| switch (xop) { |
| case 0x0: /* load word */ |
| gen_op_ldst(ld); |
| break; |
| case 0x1: /* load unsigned byte */ |
| gen_op_ldst(ldub); |
| break; |
| case 0x2: /* load unsigned halfword */ |
| gen_op_ldst(lduh); |
| break; |
| case 0x3: /* load double word */ |
| gen_op_ldst(ldd); |
| gen_movl_T0_reg(rd + 1); |
| break; |
| case 0x9: /* load signed byte */ |
| gen_op_ldst(ldsb); |
| break; |
| case 0xa: /* load signed halfword */ |
| gen_op_ldst(ldsh); |
| break; |
| case 0xd: /* ldstub -- XXX: should be atomically */ |
| gen_op_ldst(ldstub); |
| break; |
| case 0x0f: /* swap register with memory. Also atomically */ |
| gen_movl_reg_T1(rd); |
| gen_op_ldst(swap); |
| break; |
| #if !defined(CONFIG_USER_ONLY) |
| case 0x10: /* load word alternate */ |
| if (!supervisor(dc)) |
| goto priv_insn; |
| gen_op_lda(insn, 1, 4, 0); |
| break; |
| case 0x11: /* load unsigned byte alternate */ |
| if (!supervisor(dc)) |
| goto priv_insn; |
| gen_op_lduba(insn, 1, 1, 0); |
| break; |
| case 0x12: /* load unsigned halfword alternate */ |
| if (!supervisor(dc)) |
| goto priv_insn; |
| gen_op_lduha(insn, 1, 2, 0); |
| break; |
| case 0x13: /* load double word alternate */ |
| if (!supervisor(dc)) |
| goto priv_insn; |
| gen_op_ldda(insn, 1, 8, 0); |
| gen_movl_T0_reg(rd + 1); |
| break; |
| case 0x19: /* load signed byte alternate */ |
| if (!supervisor(dc)) |
| goto priv_insn; |
| gen_op_ldsba(insn, 1, 1, 1); |
| break; |
| case 0x1a: /* load signed halfword alternate */ |
| if (!supervisor(dc)) |
| goto priv_insn; |
| gen_op_ldsha(insn, 1, 2 ,1); |
| break; |
| case 0x1d: /* ldstuba -- XXX: should be atomically */ |
| if (!supervisor(dc)) |
| goto priv_insn; |
| gen_op_ldstuba(insn, 1, 1, 0); |
| break; |
| case 0x1f: /* swap reg with alt. memory. Also atomically */ |
| if (!supervisor(dc)) |
| goto priv_insn; |
| gen_movl_reg_T1(rd); |
| gen_op_swapa(insn, 1, 4, 0); |
| break; |
| |
| /* avoid warnings */ |
| (void) &gen_op_stfa; |
| (void) &gen_op_stdfa; |
| (void) &gen_op_ldfa; |
| (void) &gen_op_lddfa; |
| #endif |
| default: |
| case 0x08: /* V9 ldsw */ |
| case 0x0b: /* V9 ldx */ |
| case 0x18: /* V9 ldswa */ |
| case 0x1b: /* V9 ldxa */ |
| case 0x2d: /* V9 prefetch */ |
| case 0x30: /* V9 ldfa */ |
| case 0x33: /* V9 lddfa */ |
| case 0x3d: /* V9 prefetcha */ |
| |
| case 0x32: /* V9 ldqfa */ |
| goto illegal_insn; |
| } |
| gen_movl_T1_reg(rd); |
| } else if (xop >= 0x20 && xop < 0x24) { |
| #if !defined(CONFIG_USER_ONLY) |
| gen_op_trap_ifnofpu(); |
| #endif |
| switch (xop) { |
| case 0x20: /* load fpreg */ |
| gen_op_ldst(ldf); |
| gen_op_store_FT0_fpr(rd); |
| break; |
| case 0x21: /* load fsr */ |
| gen_op_ldfsr(); |
| gen_op_store_FT0_fpr(rd); |
| break; |
| case 0x22: /* load quad fpreg */ |
| goto nfpu_insn; |
| case 0x23: /* load double fpreg */ |
| gen_op_ldst(lddf); |
| gen_op_store_DT0_fpr(rd); |
| break; |
| default: |
| goto illegal_insn; |
| } |
| } else if (xop < 8 || (xop >= 0x14 && xop < 0x18)) { |
| gen_movl_reg_T1(rd); |
| switch (xop) { |
| case 0x4: |
| gen_op_ldst(st); |
| break; |
| case 0x5: |
| gen_op_ldst(stb); |
| break; |
| case 0x6: |
| gen_op_ldst(sth); |
| break; |
| case 0x7: |
| flush_T2(dc); |
| gen_movl_reg_T2(rd + 1); |
| gen_op_ldst(std); |
| break; |
| #if !defined(CONFIG_USER_ONLY) |
| case 0x14: |
| if (!supervisor(dc)) |
| goto priv_insn; |
| gen_op_sta(insn, 0, 4, 0); |
| break; |
| case 0x15: |
| if (!supervisor(dc)) |
| goto priv_insn; |
| gen_op_stba(insn, 0, 1, 0); |
| break; |
| case 0x16: |
| if (!supervisor(dc)) |
| goto priv_insn; |
| gen_op_stha(insn, 0, 2, 0); |
| break; |
| case 0x17: |
| if (!supervisor(dc)) |
| goto priv_insn; |
| flush_T2(dc); |
| gen_movl_reg_T2(rd + 1); |
| gen_op_stda(insn, 0, 8, 0); |
| break; |
| #endif |
| default: |
| case 0x0e: /* V9 stx */ |
| case 0x1e: /* V9 stxa */ |
| goto illegal_insn; |
| } |
| } else if (xop > 0x23 && xop < 0x28) { |
| #if !defined(CONFIG_USER_ONLY) |
| gen_op_trap_ifnofpu(); |
| #endif |
| switch (xop) { |
| case 0x24: |
| gen_op_load_fpr_FT0(rd); |
| gen_op_ldst(stf); |
| break; |
| case 0x25: /* stfsr, V9 stxfsr */ |
| gen_op_load_fpr_FT0(rd); |
| gen_op_stfsr(); |
| break; |
| case 0x26: /* stdfq */ |
| goto nfpu_insn; |
| case 0x27: |
| gen_op_load_fpr_DT0(rd); |
| gen_op_ldst(stdf); |
| break; |
| default: |
| case 0x34: /* V9 stfa */ |
| case 0x37: /* V9 stdfa */ |
| case 0x3c: /* V9 casa */ |
| case 0x3e: /* V9 casxa */ |
| |
| case 0x36: /* V9 stqfa */ |
| goto illegal_insn; |
| } |
| } else if (xop > 0x33 && xop < 0x38) { |
| /* Co-processor */ |
| goto illegal_insn; |
| } |
| else |
| goto illegal_insn; |
| } |
| break; |
| } |
| /* default case for non jump instructions */ |
| if (dc->npc == DYNAMIC_PC) { |
| dc->pc = DYNAMIC_PC; |
| gen_op_next_insn(); |
| } else if (dc->npc == JUMP_PC) { |
| /* we can do a static jump */ |
| gen_op_branch2((long)dc->tb, dc->jump_pc[0], dc->jump_pc[1]); |
| dc->is_br = 1; |
| } else { |
| dc->pc = dc->npc; |
| dc->npc = dc->npc + 4; |
| } |
| jmp_insn: |
| return; |
| illegal_insn: |
| save_state(dc); |
| gen_op_exception(TT_ILL_INSN); |
| dc->is_br = 1; |
| return; |
| #if !defined(CONFIG_USER_ONLY) |
| priv_insn: |
| save_state(dc); |
| gen_op_exception(TT_PRIV_INSN); |
| dc->is_br = 1; |
| return; |
| #endif |
| nfpu_insn: |
| save_state(dc); |
| gen_op_fpexception_im(FSR_FTT_UNIMPFPOP); |
| dc->is_br = 1; |
| } |
| |
| static inline int gen_intermediate_code_internal(TranslationBlock * tb, |
| int spc, CPUSPARCState *env) |
| { |
| target_ulong pc_start, last_pc; |
| uint16_t *gen_opc_end; |
| DisasContext dc1, *dc = &dc1; |
| int j, lj = -1; |
| |
| memset(dc, 0, sizeof(DisasContext)); |
| dc->tb = tb; |
| pc_start = tb->pc; |
| dc->pc = pc_start; |
| last_pc = dc->pc; |
| dc->npc = (target_ulong) tb->cs_base; |
| #if defined(CONFIG_USER_ONLY) |
| dc->mem_idx = 0; |
| #else |
| dc->mem_idx = ((env->psrs) != 0); |
| #endif |
| gen_opc_ptr = gen_opc_buf; |
| gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; |
| gen_opparam_ptr = gen_opparam_buf; |
| |
| do { |
| if (env->nb_breakpoints > 0) { |
| for(j = 0; j < env->nb_breakpoints; j++) { |
| if (env->breakpoints[j] == dc->pc) { |
| if (dc->pc != pc_start) |
| save_state(dc); |
| gen_op_debug(); |
| gen_op_movl_T0_0(); |
| gen_op_exit_tb(); |
| dc->is_br = 1; |
| goto exit_gen_loop; |
| } |
| } |
| } |
| if (spc) { |
| if (loglevel > 0) |
| fprintf(logfile, "Search PC...\n"); |
| j = gen_opc_ptr - gen_opc_buf; |
| if (lj < j) { |
| lj++; |
| while (lj < j) |
| gen_opc_instr_start[lj++] = 0; |
| gen_opc_pc[lj] = dc->pc; |
| gen_opc_npc[lj] = dc->npc; |
| gen_opc_instr_start[lj] = 1; |
| } |
| } |
| last_pc = dc->pc; |
| disas_sparc_insn(dc); |
| if (dc->is_br) |
| break; |
| /* if the next PC is different, we abort now */ |
| if (dc->pc != (last_pc + 4)) |
| break; |
| /* if we reach a page boundary, we stop generation so that the |
| PC of a TT_TFAULT exception is always in the right page */ |
| if ((dc->pc & (TARGET_PAGE_SIZE - 1)) == 0) |
| break; |
| /* if single step mode, we generate only one instruction and |
| generate an exception */ |
| if (env->singlestep_enabled) { |
| gen_op_jmp_im(dc->pc); |
| gen_op_movl_T0_0(); |
| gen_op_exit_tb(); |
| break; |
| } |
| } while ((gen_opc_ptr < gen_opc_end) && |
| (dc->pc - pc_start) < (TARGET_PAGE_SIZE - 32)); |
| |
| exit_gen_loop: |
| if (!dc->is_br) { |
| if (dc->pc != DYNAMIC_PC && |
| (dc->npc != DYNAMIC_PC && dc->npc != JUMP_PC)) { |
| /* static PC and NPC: we can use direct chaining */ |
| gen_op_branch((long)tb, dc->pc, dc->npc); |
| } else { |
| if (dc->pc != DYNAMIC_PC) |
| gen_op_jmp_im(dc->pc); |
| save_npc(dc); |
| gen_op_movl_T0_0(); |
| gen_op_exit_tb(); |
| } |
| } |
| *gen_opc_ptr = INDEX_op_end; |
| if (spc) { |
| j = gen_opc_ptr - gen_opc_buf; |
| lj++; |
| while (lj <= j) |
| gen_opc_instr_start[lj++] = 0; |
| tb->size = 0; |
| #if 0 |
| if (loglevel > 0) { |
| page_dump(logfile); |
| } |
| #endif |
| gen_opc_jump_pc[0] = dc->jump_pc[0]; |
| gen_opc_jump_pc[1] = dc->jump_pc[1]; |
| } else { |
| tb->size = last_pc + 4 - pc_start; |
| } |
| #ifdef DEBUG_DISAS |
| if (loglevel & CPU_LOG_TB_IN_ASM) { |
| fprintf(logfile, "--------------\n"); |
| fprintf(logfile, "IN: %s\n", lookup_symbol(pc_start)); |
| target_disas(logfile, pc_start, last_pc + 4 - pc_start, 0); |
| fprintf(logfile, "\n"); |
| if (loglevel & CPU_LOG_TB_OP) { |
| fprintf(logfile, "OP:\n"); |
| dump_ops(gen_opc_buf, gen_opparam_buf); |
| fprintf(logfile, "\n"); |
| } |
| } |
| #endif |
| return 0; |
| } |
| |
| int gen_intermediate_code(CPUSPARCState * env, TranslationBlock * tb) |
| { |
| return gen_intermediate_code_internal(tb, 0, env); |
| } |
| |
| int gen_intermediate_code_pc(CPUSPARCState * env, TranslationBlock * tb) |
| { |
| return gen_intermediate_code_internal(tb, 1, env); |
| } |
| |
| extern int ram_size; |
| |
| void cpu_reset(CPUSPARCState *env) |
| { |
| memset(env, 0, sizeof(*env)); |
| tlb_flush(env, 1); |
| env->cwp = 0; |
| env->wim = 1; |
| env->regwptr = env->regbase + (env->cwp * 16); |
| #if defined(CONFIG_USER_ONLY) |
| env->user_mode_only = 1; |
| #else |
| env->psrs = 1; |
| env->psrps = 1; |
| env->pc = 0xffd00000; |
| env->gregs[1] = ram_size; |
| env->mmuregs[0] = (0x04 << 24); /* Impl 0, ver 4, MMU disabled */ |
| env->npc = env->pc + 4; |
| #endif |
| } |
| |
| CPUSPARCState *cpu_sparc_init(void) |
| { |
| CPUSPARCState *env; |
| |
| cpu_exec_init(); |
| |
| if (!(env = malloc(sizeof(CPUSPARCState)))) |
| return (NULL); |
| cpu_single_env = env; |
| cpu_reset(env); |
| return (env); |
| } |
| |
| #define GET_FLAG(a,b) ((env->psr & a)?b:'-') |
| |
| void cpu_dump_state(CPUState *env, FILE *f, |
| int (*cpu_fprintf)(FILE *f, const char *fmt, ...), |
| int flags) |
| { |
| int i, x; |
| |
| cpu_fprintf(f, "pc: " TARGET_FMT_lx " npc: " TARGET_FMT_lx "\n", env->pc, env->npc); |
| cpu_fprintf(f, "General Registers:\n"); |
| for (i = 0; i < 4; i++) |
| cpu_fprintf(f, "%%g%c: " TARGET_FMT_lx "\t", i + '0', env->gregs[i]); |
| cpu_fprintf(f, "\n"); |
| for (; i < 8; i++) |
| cpu_fprintf(f, "%%g%c: " TARGET_FMT_lx "\t", i + '0', env->gregs[i]); |
| cpu_fprintf(f, "\nCurrent Register Window:\n"); |
| for (x = 0; x < 3; x++) { |
| for (i = 0; i < 4; i++) |
| cpu_fprintf(f, "%%%c%d: " TARGET_FMT_lx "\t", |
| (x == 0 ? 'o' : (x == 1 ? 'l' : 'i')), i, |
| env->regwptr[i + x * 8]); |
| cpu_fprintf(f, "\n"); |
| for (; i < 8; i++) |
| cpu_fprintf(f, "%%%c%d: " TARGET_FMT_lx "\t", |
| (x == 0 ? 'o' : x == 1 ? 'l' : 'i'), i, |
| env->regwptr[i + x * 8]); |
| cpu_fprintf(f, "\n"); |
| } |
| cpu_fprintf(f, "\nFloating Point Registers:\n"); |
| for (i = 0; i < 32; i++) { |
| if ((i & 3) == 0) |
| cpu_fprintf(f, "%%f%02d:", i); |
| cpu_fprintf(f, " %016lf", env->fpr[i]); |
| if ((i & 3) == 3) |
| cpu_fprintf(f, "\n"); |
| } |
| cpu_fprintf(f, "psr: 0x%08x -> %c%c%c%c %c%c%c wim: 0x%08x\n", GET_PSR(env), |
| GET_FLAG(PSR_ZERO, 'Z'), GET_FLAG(PSR_OVF, 'V'), |
| GET_FLAG(PSR_NEG, 'N'), GET_FLAG(PSR_CARRY, 'C'), |
| env->psrs?'S':'-', env->psrps?'P':'-', |
| env->psret?'E':'-', env->wim); |
| cpu_fprintf(f, "fsr: 0x%08x\n", env->fsr); |
| } |
| |
| #if defined(CONFIG_USER_ONLY) |
| target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr) |
| { |
| return addr; |
| } |
| |
| #else |
| extern int get_physical_address (CPUState *env, target_phys_addr_t *physical, int *prot, |
| int *access_index, target_ulong address, int rw, |
| int is_user); |
| |
| target_ulong cpu_get_phys_page_debug(CPUState *env, target_ulong addr) |
| { |
| target_phys_addr_t phys_addr; |
| int prot, access_index; |
| |
| if (get_physical_address(env, &phys_addr, &prot, &access_index, addr, 2, 0) != 0) |
| return -1; |
| return phys_addr; |
| } |
| #endif |
| |
| void helper_flush(target_ulong addr) |
| { |
| addr &= ~7; |
| tb_invalidate_page_range(addr, addr + 8); |
| } |
