diff options
Diffstat (limited to 'target-sparc/translate.c')
| -rw-r--r-- | target-sparc/translate.c | 1281 |
1 files changed, 701 insertions, 580 deletions
diff --git a/target-sparc/translate.c b/target-sparc/translate.c index d302c3dec..a5c1dbe6f 100644 --- a/target-sparc/translate.c +++ b/target-sparc/translate.c @@ -34,18 +34,13 @@ and the 'anull' bit in the branch instruction opcode is set. This is currently solved by doing a jump after the delay slot instruction. - There is also one big (currently unsolved) bug in the branch code: - If a delay slot modifies the condition codes then the new condition - codes, instead of the old ones will be used. - TODO-list: + Register window overflow/underflow check FPU-Instructions Coprocessor-Instructions - Fix above bug Check signedness issues Privileged instructions - Register window overflow/underflow check Optimize synthetic instructions Optional alignment and privileged instruction check @@ -65,14 +60,10 @@ #define DEBUG_DISAS typedef struct DisasContext { - uint8_t *pc; - uint8_t *npc; - void (*branch) (struct DisasContext *, uint32_t, uint32_t); - unsigned int delay_slot:2; - uint32_t insn; - uint32_t target; - int is_br; - struct TranslationBlock *tb; + uint8_t *pc; /* NULL means dynamic value */ + uint8_t *npc; /* NULL means dynamic value */ + int is_br; + struct TranslationBlock *tb; } DisasContext; static uint16_t *gen_opc_ptr; @@ -84,7 +75,7 @@ enum { #define DEF(s,n,copy_size) INDEX_op_ ## s, #include "opc.h" #undef DEF - NB_OPS + NB_OPS }; #include "gen-op.h" @@ -94,651 +85,781 @@ enum { #define IS_IMM (insn & (1<<13)) -static void disas_sparc_insn (DisasContext *dc); +static void disas_sparc_insn(DisasContext * dc); -typedef void (GenOpFunc)(void); -typedef void (GenOpFunc1)(long); -typedef void (GenOpFunc2)(long, long); -typedef void (GenOpFunc3)(long, long, long); +typedef void (GenOpFunc) (void); +typedef void (GenOpFunc1) (long); +typedef void (GenOpFunc2) (long, long); +typedef void (GenOpFunc3) (long, long, long); 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, - } + { + 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, - } + { + 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 + gen_op_movl_T0_im, + gen_op_movl_T1_im, + gen_op_movl_T2_im }; -static inline void gen_movl_imm_TN (int reg, int imm) +static inline void gen_movl_imm_TN(int reg, int imm) { - gen_op_movl_TN_im[reg](imm); + gen_op_movl_TN_im[reg] (imm); } -static inline void gen_movl_imm_T1 (int val) +static inline void gen_movl_imm_T1(int val) { - gen_movl_imm_TN (1, val); + gen_movl_imm_TN(1, val); } -static inline void gen_movl_imm_T0 (int val) +static inline void gen_movl_imm_T0(int val) { - gen_movl_imm_TN (0, val); + gen_movl_imm_TN(0, val); } -static inline void gen_movl_reg_TN (int reg, int t) +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); + 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) +static inline void gen_movl_reg_T0(int reg) { - gen_movl_reg_TN (reg, 0); + gen_movl_reg_TN(reg, 0); } -static inline void gen_movl_reg_T1 (int reg) +static inline void gen_movl_reg_T1(int reg) { - gen_movl_reg_TN (reg, 1); + gen_movl_reg_TN(reg, 1); } -static inline void gen_movl_reg_T2 (int reg) +static inline void gen_movl_reg_T2(int reg) { - gen_movl_reg_TN (reg, 2); + gen_movl_reg_TN(reg, 2); } -static inline void gen_movl_TN_reg (int reg, int t) +static inline void gen_movl_TN_reg(int reg, int t) { - if (reg) gen_op_movl_TN_reg[t][reg](); + if (reg) + gen_op_movl_TN_reg[t][reg] (); } -static inline void gen_movl_T0_reg (int reg) +static inline void gen_movl_T0_reg(int reg) { - gen_movl_TN_reg (reg, 0); + gen_movl_TN_reg(reg, 0); } -static inline void gen_movl_T1_reg (int reg) +static inline void gen_movl_T1_reg(int reg) { - gen_movl_TN_reg (reg, 1); + gen_movl_TN_reg(reg, 1); } -static void do_branch (DisasContext *dc, uint32_t target, uint32_t insn) +static void gen_cond(int cond) { - unsigned int cond = GET_FIELD (insn, 3, 6), a = (insn & (1<<29)), ib = 0; - target += (uint32_t) dc->pc-4; - if (!a) disas_sparc_insn (dc); switch (cond) { - case 0x0: gen_op_movl_T0_0 (); break; - 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 0x8: gen_op_movl_T0_1 (); 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; - case 0xf: gen_op_eval_bvc (); break; - } - if (a && ((cond|0x8) != 0x8)) { - gen_op_generic_branch_a ((uint32_t) dc->tb, - (uint32_t) dc->pc+4, target); - disas_sparc_insn (dc); - ib = 1; + case 0x0: + gen_op_movl_T2_0(); + break; + 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 0x8: + gen_op_movl_T2_1(); + 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; } - else - if (cond && !a) { - gen_op_generic_branch ((uint32_t) dc->tb, (uint32_t) target, - (uint32_t) dc->pc); - ib = 1; - } - if (ib) dc->is_br = DISAS_JUMP; } -/* target == 0x1 means CALL- else JMPL-instruction */ -static void do_jump (DisasContext *dc, uint32_t target, uint32_t rd) + +static void do_branch(DisasContext * dc, uint32_t target, uint32_t insn) { - uint32_t orig_pc = (uint32_t) dc->pc-8; - if (target != 0x1) - gen_op_generic_jmp_1 (orig_pc, target); - else - gen_op_generic_jmp_2 (orig_pc); - gen_movl_T1_reg (rd); - dc->is_br = DISAS_JUMP; - gen_op_movl_T0_0 (); + unsigned int cond = GET_FIELD(insn, 3, 6), a = (insn & (1 << 29)); + target += (uint32_t) dc->pc; + 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 = (uint8_t *) target; + dc->npc = dc->pc + 4; + } else { + dc->pc = dc->npc; + dc->npc = (uint8_t *) target; + } + } else { + gen_cond(cond); + if (a) { + gen_op_generic_branch_a((uint32_t) target, + (uint32_t) (dc->npc)); + dc->is_br = 1; + dc->pc = NULL; + dc->npc = NULL; + } else { + dc->pc = dc->npc; + gen_op_generic_branch((uint32_t) target, + (uint32_t) (dc->npc + 4)); + dc->npc = NULL; + } + } } -#define GET_FIELDs(x,a,b) sign_extend (GET_FIELD(x,a,b), b-a) +#define GET_FIELDs(x,a,b) sign_extend (GET_FIELD(x,a,b), (b) - (a) + 1) -static int -sign_extend (x, len) - int x, len; +static int sign_extend(int x, int len) { - int signbit = (1 << (len - 1)); - int mask = (signbit << 1) - 1; - return ((x & mask) ^ signbit) - signbit; + len = 32 - len; + return (x << len) >> len; } -static void disas_sparc_insn (DisasContext *dc) +static inline void save_state(DisasContext * dc) { - unsigned int insn, opc, rs1, rs2, rd; + gen_op_jmp_im((uint32_t)dc->pc); + if (dc->npc != NULL) + gen_op_movl_npc_im((long) dc->npc); +} - if (dc->delay_slot == 1) { - insn = dc->insn; - } else { - if (dc->delay_slot) dc->delay_slot--; - insn = htonl (*(unsigned int *) (dc->pc)); - dc->pc += 4; - } +static void disas_sparc_insn(DisasContext * dc) +{ + unsigned int insn, opc, rs1, rs2, rd; - opc = GET_FIELD (insn, 0, 1); + 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); - int target; - target = GET_FIELD (insn, 10, 31); - switch (xop) { - case 0x0: case 0x1: /* UNIMPL */ - printf ("UNIMPLEMENTED: %p\n", dc->pc-4); - exit (23); - break; - case 0x2: /* BN+x */ - { - target <<= 2; - target = sign_extend (target, 22); - do_branch (dc, target, insn); - break; - } - case 0x3: /* FBN+x */ - break; - case 0x4: /* SETHI */ - gen_movl_imm_T0 (target<<10); - gen_movl_T0_reg (rd); - break; - case 0x5: /*CBN+x*/ - break; - } - break; - } - case 1: /*CALL*/ + rd = GET_FIELD(insn, 2, 6); + switch (opc) { + case 0: /* branches/sethi */ + { + unsigned int xop = GET_FIELD(insn, 7, 9); + int target; + target = GET_FIELD(insn, 10, 31); + switch (xop) { + case 0x0: + case 0x1: /* UNIMPL */ + goto illegal_insn; + case 0x2: /* BN+x */ { - unsigned int target = GET_FIELDs (insn, 2, 31) << 2; - if (dc->delay_slot) { - do_jump (dc, target, 15); - dc->delay_slot = 0; - } else { - dc->insn = insn; - dc->delay_slot = 2; - } - break; + target <<= 2; + target = sign_extend(target, 22); + do_branch(dc, target, insn); + goto jmp_insn; } - case 2: /* FPU & Logical Operations */ - { - unsigned int xop = GET_FIELD (insn, 7, 12); - if (xop == 58) { /* generate trap */ - dc->is_br = DISAS_JUMP; - gen_op_jmp_im ((uint32_t) dc->pc); - if (IS_IMM) gen_op_trap (GET_FIELD (insn, 25, 31)); - /* else XXX*/ - gen_op_movl_T0_0 (); - break; - } - if (xop == 0x34 || xop == 0x35) { /* FPU Operations */ - exit (33); - } - rs1 = GET_FIELD (insn, 13, 17); - gen_movl_reg_T0 (rs1); - if (IS_IMM) { /* immediate */ - rs2 = GET_FIELDs (insn, 20, 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: - gen_op_add_T1_T0 (); - break; - case 0x1: - gen_op_and_T1_T0 (); - break; - case 0x2: - gen_op_or_T1_T0 (); - break; - case 0x3: - gen_op_xor_T1_T0 (); - break; - case 0x4: - gen_op_sub_T1_T0 (); - break; - case 0x5: - gen_op_andn_T1_T0 (); - break; - case 0x6: - gen_op_orn_T1_T0 (); - break; - case 0x7: - gen_op_xnor_T1_T0 (); - break; - case 0x8: - gen_op_addx_T1_T0 (); - break; - case 0xa: - gen_op_umul_T1_T0 (); - break; - case 0xb: - gen_op_smul_T1_T0 (); - break; - case 0xc: - gen_op_subx_T1_T0 (); - break; - case 0xe: - gen_op_udiv_T1_T0 (); - break; - case 0xf: - gen_op_sdiv_T1_T0 (); - break; - default: - exit (17); - break; - } - gen_movl_T0_reg (rd); - if (xop & 0x10) { - gen_op_set_flags (); - } - } else { - switch (xop) { - case 0x25: /* SLL */ - gen_op_sll (); - break; - case 0x26: - gen_op_srl (); - break; - case 0x27: - gen_op_sra (); - break; - case 0x28: case 0x30: - { - unsigned int rdi = GET_FIELD (insn, 13, 17); - if (!rdi) (xop==0x28?gen_op_rdy ():gen_op_wry()); - /* else gen_op_su_trap (); */ - break; - } - /* Problem with jmpl: if restore is executed in the delay - slot, then the wrong registers are beeing used */ - case 0x38: /* jmpl */ - { - if (dc->delay_slot) { - gen_op_add_T1_T0 (); - do_jump (dc, 1, rd); - dc->delay_slot = 0; - } else { - gen_op_add_T1_T0 (); - gen_op_jmpl (); - dc->insn = insn; - dc->delay_slot = 2; - } - break; - } - case 0x3c: /* save */ - gen_op_add_T1_T0 (); - gen_op_save (); - gen_movl_T0_reg (rd); - break; - case 0x3d: /* restore */ - gen_op_add_T1_T0 (); - gen_op_restore (); - gen_movl_T0_reg (rd); - break; - } - } - break; + case 0x3: /* FBN+x */ + break; + case 0x4: /* SETHI */ + gen_movl_imm_T0(target << 10); + gen_movl_T0_reg(rd); + break; + case 0x5: /*CBN+x */ + break; + } + break; + } + case 1: + /*CALL*/ { + unsigned int target = GET_FIELDs(insn, 2, 31) << 2; + + gen_op_movl_T0_im((long) (dc->pc)); + gen_movl_T0_reg(15); + target = (long) dc->pc + target; + dc->pc = dc->npc; + dc->npc = (uint8_t *) 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) { + gen_movl_imm_T1(GET_FIELD(insn, 25, 31)); + } else { + rs2 = GET_FIELD(insn, 27, 31); + gen_movl_reg_T1(rs2); + } + gen_op_add_T1_T0(); + save_state(dc); + cond = GET_FIELD(insn, 3, 6); + if (cond == 0x8) { + gen_op_trap_T0(); + dc->is_br = 1; + goto jmp_insn; + } else { + 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; + default: + goto illegal_insn; + } + } else if (xop == 0x34 || xop == 0x35) { /* FPU Operations */ + 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); + 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: + gen_op_addx_T1_T0(); + if (xop & 0x10) + gen_op_set_flags(); + 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: + gen_op_subx_T1_T0(); + if (xop & 0x10) + gen_op_set_flags(); + 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: + goto illegal_insn; + } + gen_movl_T0_reg(rd); + } else { + switch (xop) { + case 0x24: /* mulscc */ + gen_op_mulscc_T1_T0(); + gen_movl_T0_reg(rd); + break; + case 0x25: /* SLL */ + gen_op_sll(); + gen_movl_T0_reg(rd); + break; + case 0x26: + gen_op_srl(); + gen_movl_T0_reg(rd); + break; + case 0x27: + 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: + goto illegal_insn; + } + } + break; + case 0x38: /* jmpl */ + { + gen_op_add_T1_T0(); + gen_op_movl_npc_T0(); + if (rd != 0) { + gen_op_movl_T0_im((long) (dc->pc)); + gen_movl_T0_reg(rd); + } + dc->pc = dc->npc; + dc->npc = NULL; + } + goto jmp_insn; + case 0x3b: /* flush */ + /* nothing to do */ + break; + case 0x3c: /* save */ + save_state(dc); + gen_op_add_T1_T0(); + gen_op_save(); + gen_movl_T0_reg(rd); + break; + case 0x3d: /* restore */ + save_state(dc); + gen_op_add_T1_T0(); + gen_op_restore(); + gen_movl_T0_reg(rd); + break; + default: + goto illegal_insn; + } + } + } + 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); + gen_movl_imm_T1(rs2); + } else { /* register */ + rs2 = GET_FIELD(insn, 27, 31); + gen_movl_reg_T1(rs2); + } + gen_op_add_T1_T0(); + if (xop < 4 || xop > 7) { + switch (xop) { + case 0x0: /* load word */ + gen_op_ld(); + break; + case 0x1: /* load unsigned byte */ + gen_op_ldub(); + break; + case 0x2: /* load unsigned halfword */ + gen_op_lduh(); + break; + case 0x3: /* load double word */ + gen_op_ldd(); + gen_movl_T0_reg(rd + 1); + break; + case 0x9: /* load signed byte */ + gen_op_ldsb(); + break; + case 0xa: /* load signed halfword */ + gen_op_ldsh(); + break; + case 0xd: /* ldstub -- XXX: should be atomically */ + gen_op_ldstub(); + break; + case 0x0f: /* swap register with memory. Also atomically */ + gen_op_swap(); + 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, 20, 31); - gen_movl_imm_T1 (rs2); - } else { /* register */ - rs2 = GET_FIELD (insn, 27, 31); - gen_movl_reg_T1 (rs2); - } - gen_op_add_T1_T0 (); - if (xop < 4 || xop > 7) { - switch (xop) { - case 0x0: /* load word */ - gen_op_ld (); - break; - case 0x1: /* load unsigned byte */ - gen_op_ldub (); - break; - case 0x2: /* load unsigned halfword */ - gen_op_lduh (); - break; - case 0x3: /* load double word */ - gen_op_ldd (); - gen_movl_T0_reg (rd+1); - break; - case 0x9: /* load signed byte */ - gen_op_ldsb (); - break; - case 0xa: /* load signed halfword */ - gen_op_ldsh (); - break; - case 0xd: /* ldstub -- XXX: should be atomically */ - gen_op_ldstub (); - break; - case 0x0f: /* swap register with memory. Also atomically */ - gen_op_swap (); - break; - } - gen_movl_T1_reg (rd); - } else if (xop < 8) { - gen_movl_reg_T1 (rd); - switch (xop) { - case 0x4: - gen_op_st (); - break; - case 0x5: - gen_op_stb (); - break; - case 0x6: - gen_op_sth (); - break; - case 0x7: - gen_op_st (); - gen_movl_reg_T1 (rd+1); - gen_op_st (); - break; - } - } + gen_movl_T1_reg(rd); + } else if (xop < 8) { + gen_movl_reg_T1(rd); + switch (xop) { + case 0x4: + gen_op_st(); + break; + case 0x5: + gen_op_stb(); + break; + case 0x6: + gen_op_sth(); + break; + case 0x7: + gen_movl_reg_T2(rd + 1); + gen_op_std(); + break; } + } } + } + /* default case for non jump instructions */ + if (dc->npc != NULL) { + dc->pc = dc->npc; + dc->npc = dc->npc + 4; + } else { + dc->pc = NULL; + gen_op_next_insn(); + } + jmp_insn:; + return; + illegal_insn: + gen_op_jmp_im((uint32_t)dc->pc); + if (dc->npc != NULL) + gen_op_movl_npc_im((long) dc->npc); + gen_op_exception(TT_ILL_INSN); + dc->is_br = 1; } -static inline int gen_intermediate_code_internal (TranslationBlock *tb, int spc) +static inline int gen_intermediate_code_internal(TranslationBlock * tb, + int spc) { - uint8_t *pc_start = (uint8_t *) tb->pc; - uint16_t *gen_opc_end; - DisasContext dc; - - memset (&dc, 0, sizeof (dc)); - if (spc) { - printf ("SearchPC not yet supported\n"); - exit (0); - } - dc.tb = tb; - dc.pc = pc_start; - - gen_opc_ptr = gen_opc_buf; - gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; - gen_opparam_ptr = gen_opparam_buf; - - do { - disas_sparc_insn (&dc); - } while (!dc.is_br && (gen_opc_ptr < gen_opc_end) && - (dc.pc - pc_start) < (TARGET_PAGE_SIZE - 32)); - - switch (dc.is_br) { - case DISAS_JUMP: - case DISAS_TB_JUMP: - gen_op_exit_tb (); - break; - } - - *gen_opc_ptr = INDEX_op_end; + uint8_t *pc_start, *last_pc; + uint16_t *gen_opc_end; + DisasContext dc1, *dc = &dc1; + + memset(dc, 0, sizeof(DisasContext)); + if (spc) { + printf("SearchPC not yet supported\n"); + exit(0); + } + dc->tb = tb; + pc_start = (uint8_t *) tb->pc; + dc->pc = pc_start; + dc->npc = (uint8_t *) tb->cs_base; + + gen_opc_ptr = gen_opc_buf; + gen_opc_end = gen_opc_buf + OPC_MAX_SIZE; + gen_opparam_ptr = gen_opparam_buf; + + do { + 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; + } while ((gen_opc_ptr < gen_opc_end) && + (dc->pc - pc_start) < (TARGET_PAGE_SIZE - 32)); + if (dc->pc != NULL) + gen_op_jmp_im((long) dc->pc); + if (dc->npc != NULL) + gen_op_movl_npc_im((long) dc->npc); + gen_op_movl_T0_0(); + gen_op_exit_tb(); + + *gen_opc_ptr = INDEX_op_end; #ifdef DEBUG_DISAS - if (loglevel) { - fprintf (logfile, "--------------\n"); - fprintf (logfile, "IN: %s\n", lookup_symbol (pc_start)); - disas(logfile, pc_start, dc.pc - pc_start, 0, 0); - fprintf(logfile, "\n"); - fprintf(logfile, "OP:\n"); - dump_ops(gen_opc_buf, gen_opparam_buf); - fprintf(logfile, "\n"); - } + if (loglevel) { + fprintf(logfile, "--------------\n"); + fprintf(logfile, "IN: %s\n", lookup_symbol(pc_start)); + disas(logfile, pc_start, last_pc + 4 - pc_start, 0, 0); + fprintf(logfile, "\n"); + fprintf(logfile, "OP:\n"); + dump_ops(gen_opc_buf, gen_opparam_buf); + fprintf(logfile, "\n"); + } #endif - return 0; + return 0; } -int gen_intermediate_code (CPUSPARCState *env, TranslationBlock *tb) +int gen_intermediate_code(CPUSPARCState * env, TranslationBlock * tb) { - return gen_intermediate_code_internal(tb, 0); + return gen_intermediate_code_internal(tb, 0); } -int gen_intermediate_code_pc (CPUSPARCState *env, TranslationBlock *tb) +int gen_intermediate_code_pc(CPUSPARCState * env, TranslationBlock * tb) { - return gen_intermediate_code_internal(tb, 1); + return gen_intermediate_code_internal(tb, 1); } -void *mycpu; - -CPUSPARCState *cpu_sparc_init (void) +CPUSPARCState *cpu_sparc_init(void) { - CPUSPARCState *env; - - cpu_exec_init (); - - if (!(env = malloc (sizeof(CPUSPARCState)))) - return (NULL); - memset (env, 0, sizeof (*env)); - if (!(env->regwptr = malloc (0x2000))) - return (NULL); - memset (env->regwptr, 0, 0x2000); - env->regwptr += 127; - env->user_mode_only = 1; - mycpu = env; - return (env); + CPUSPARCState *env; + + cpu_exec_init(); + + if (!(env = malloc(sizeof(CPUSPARCState)))) + return (NULL); + memset(env, 0, sizeof(*env)); + env->cwp = 0; + env->wim = 1; + env->regwptr = env->regbase + (env->cwp * 16); + env->user_mode_only = 1; + return (env); } #define GET_FLAG(a,b) ((env->psr & a)?b:'-') -void cpu_sparc_dump_state (CPUSPARCState *env, FILE *f, int flags) +void cpu_sparc_dump_state(CPUSPARCState * env, FILE * f, int flags) { - int i, x; - - fprintf (f, "@PC: %p\n", (void *) env->pc); - fprintf (f, "General Registers:\n"); - for (i=0;i<4;i++) - fprintf (f, "%%g%c: %%%08x\t", i+'0', env->gregs[i]); - fprintf (f, "\n"); - for (;i<8;i++) - fprintf (f, "%%g%c: %%%08x\t", i+'0', env->gregs[i]); - fprintf (f, "\nCurrent Register Window:\n"); - for (x=0;x<3;x++) { - for (i=0;i<4;i++) - fprintf (f, "%%%c%d: %%%08x\t", (x==0?'o':(x==1?'l':'i')), i, env->regwptr[i+x*8]); - fprintf (f, "\n"); - for (;i<8;i++) - fprintf (f, "%%%c%d: %%%08x\t", (x==0?'o':x==1?'l':'i'), i, env->regwptr[i+x*8]); - fprintf (f, "\n"); - } - fprintf (f, "PSR: %x -> %c%c%c%c\n", env->psr, - GET_FLAG(PSR_ZERO, 'Z'), GET_FLAG(PSR_OVF, 'V'), - GET_FLAG(PSR_NEG, 'N'), GET_FLAG(PSR_CARRY, 'C')); + int i, x; + + fprintf(f, "pc: 0x%08x npc: 0x%08x\n", (int) env->pc, (int) env->npc); + fprintf(f, "General Registers:\n"); + for (i = 0; i < 4; i++) + fprintf(f, "%%g%c: 0x%08x\t", i + '0', env->gregs[i]); + fprintf(f, "\n"); + for (; i < 8; i++) + fprintf(f, "%%g%c: 0x%08x\t", i + '0', env->gregs[i]); + fprintf(f, "\nCurrent Register Window:\n"); + for (x = 0; x < 3; x++) { + for (i = 0; i < 4; i++) + fprintf(f, "%%%c%d: 0x%08x\t", + (x == 0 ? 'o' : (x == 1 ? 'l' : 'i')), i, + env->regwptr[i + x * 8]); + fprintf(f, "\n"); + for (; i < 8; i++) + fprintf(f, "%%%c%d: 0x%08x\t", + (x == 0 ? 'o' : x == 1 ? 'l' : 'i'), i, + env->regwptr[i + x * 8]); + fprintf(f, "\n"); + } + fprintf(f, "psr: 0x%08x -> %c%c%c%c wim: 0x%08x\n", env->psr | env->cwp, + GET_FLAG(PSR_ZERO, 'Z'), GET_FLAG(PSR_OVF, 'V'), + GET_FLAG(PSR_NEG, 'N'), GET_FLAG(PSR_CARRY, 'C'), + env->wim); } |