diff options
author | Richard Henderson <richard.henderson@linaro.org> | 2018-05-11 22:02:47 -0700 |
---|---|---|
committer | Laurent Vivier <laurent@vivier.eu> | 2018-06-11 12:43:38 +0200 |
commit | a575cbe01caecf22ab322a9baa5930a6d9e39ca6 (patch) | |
tree | 92c0e49a2540f8fd216b2aa191ee8aeff6da0968 | |
parent | 4106f26e95c83b8759c3fe61a4d3a1fa740db0a9 (diff) |
target/m68k: Convert to DisasContextBase
Removed ctx->insn_pc in favour of ctx->base.pc_next.
Yes, it is annoying, but didn't want to waste its 4 bytes.
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180512050250.12774-7-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
-rw-r--r-- | target/m68k/translate.c | 137 |
1 files changed, 67 insertions, 70 deletions
diff --git a/target/m68k/translate.c b/target/m68k/translate.c index 0cbd715550..12a74b0b59 100644 --- a/target/m68k/translate.c +++ b/target/m68k/translate.c @@ -111,14 +111,11 @@ void m68k_tcg_init(void) /* internal defines */ typedef struct DisasContext { + DisasContextBase base; CPUM68KState *env; - target_ulong insn_pc; /* Start of the current instruction. */ target_ulong pc; - int is_jmp; CCOp cc_op; /* Current CC operation */ int cc_op_synced; - struct TranslationBlock *tb; - int singlestep_enabled; TCGv_i64 mactmp; int done_mac; int writeback_mask; @@ -203,10 +200,10 @@ static void do_writebacks(DisasContext *s) #if defined(CONFIG_USER_ONLY) #define IS_USER(s) 1 #else -#define IS_USER(s) (!(s->tb->flags & TB_FLAGS_MSR_S)) -#define SFC_INDEX(s) ((s->tb->flags & TB_FLAGS_SFC_S) ? \ +#define IS_USER(s) (!(s->base.tb->flags & TB_FLAGS_MSR_S)) +#define SFC_INDEX(s) ((s->base.tb->flags & TB_FLAGS_SFC_S) ? \ MMU_KERNEL_IDX : MMU_USER_IDX) -#define DFC_INDEX(s) ((s->tb->flags & TB_FLAGS_DFC_S) ? \ +#define DFC_INDEX(s) ((s->base.tb->flags & TB_FLAGS_DFC_S) ? \ MMU_KERNEL_IDX : MMU_USER_IDX) #endif @@ -278,7 +275,7 @@ static void gen_jmp_im(DisasContext *s, uint32_t dest) { update_cc_op(s); tcg_gen_movi_i32(QREG_PC, dest); - s->is_jmp = DISAS_JUMP; + s->base.is_jmp = DISAS_JUMP; } /* Generate a jump to the address in qreg DEST. */ @@ -286,7 +283,7 @@ static void gen_jmp(DisasContext *s, TCGv dest) { update_cc_op(s); tcg_gen_mov_i32(QREG_PC, dest); - s->is_jmp = DISAS_JUMP; + s->base.is_jmp = DISAS_JUMP; } static void gen_exception(DisasContext *s, uint32_t dest, int nr) @@ -300,12 +297,12 @@ static void gen_exception(DisasContext *s, uint32_t dest, int nr) gen_helper_raise_exception(cpu_env, tmp); tcg_temp_free_i32(tmp); - s->is_jmp = DISAS_NORETURN; + s->base.is_jmp = DISAS_NORETURN; } static inline void gen_addr_fault(DisasContext *s) { - gen_exception(s, s->insn_pc, EXCP_ADDRESS); + gen_exception(s, s->base.pc_next, EXCP_ADDRESS); } /* Generate a load from the specified address. Narrow values are @@ -1003,7 +1000,7 @@ static void gen_load_fp(DisasContext *s, int opsize, TCGv addr, TCGv_ptr fp, break; case OS_EXTENDED: if (m68k_feature(s->env, M68K_FEATURE_CF_FPU)) { - gen_exception(s, s->insn_pc, EXCP_FP_UNIMP); + gen_exception(s, s->base.pc_next, EXCP_FP_UNIMP); break; } tcg_gen_qemu_ld32u(tmp, addr, index); @@ -1017,7 +1014,7 @@ static void gen_load_fp(DisasContext *s, int opsize, TCGv addr, TCGv_ptr fp, /* unimplemented data type on 68040/ColdFire * FIXME if needed for another FPU */ - gen_exception(s, s->insn_pc, EXCP_FP_UNIMP); + gen_exception(s, s->base.pc_next, EXCP_FP_UNIMP); break; default: g_assert_not_reached(); @@ -1057,7 +1054,7 @@ static void gen_store_fp(DisasContext *s, int opsize, TCGv addr, TCGv_ptr fp, break; case OS_EXTENDED: if (m68k_feature(s->env, M68K_FEATURE_CF_FPU)) { - gen_exception(s, s->insn_pc, EXCP_FP_UNIMP); + gen_exception(s, s->base.pc_next, EXCP_FP_UNIMP); break; } tcg_gen_ld16u_i32(tmp, fp, offsetof(FPReg, l.upper)); @@ -1071,7 +1068,7 @@ static void gen_store_fp(DisasContext *s, int opsize, TCGv addr, TCGv_ptr fp, /* unimplemented data type on 68040/ColdFire * FIXME if needed for another FPU */ - gen_exception(s, s->insn_pc, EXCP_FP_UNIMP); + gen_exception(s, s->base.pc_next, EXCP_FP_UNIMP); break; default: g_assert_not_reached(); @@ -1203,7 +1200,7 @@ static int gen_ea_mode_fp(CPUM68KState *env, DisasContext *s, int mode, break; case OS_EXTENDED: if (m68k_feature(s->env, M68K_FEATURE_CF_FPU)) { - gen_exception(s, s->insn_pc, EXCP_FP_UNIMP); + gen_exception(s, s->base.pc_next, EXCP_FP_UNIMP); break; } tmp = tcg_const_i32(read_im32(env, s) >> 16); @@ -1217,7 +1214,7 @@ static int gen_ea_mode_fp(CPUM68KState *env, DisasContext *s, int mode, /* unimplemented data type on 68040/ColdFire * FIXME if needed for another FPU */ - gen_exception(s, s->insn_pc, EXCP_FP_UNIMP); + gen_exception(s, s->base.pc_next, EXCP_FP_UNIMP); break; default: g_assert_not_reached(); @@ -1450,7 +1447,7 @@ static void gen_exit_tb(DisasContext *s) { update_cc_op(s); tcg_gen_movi_i32(QREG_PC, s->pc); - s->is_jmp = DISAS_EXIT; + s->base.is_jmp = DISAS_EXIT; } #define SRC_EA(env, result, opsize, op_sign, addrp) do { \ @@ -1474,8 +1471,8 @@ static void gen_exit_tb(DisasContext *s) static inline bool use_goto_tb(DisasContext *s, uint32_t dest) { #ifndef CONFIG_USER_ONLY - return (s->tb->pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) || - (s->insn_pc & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK); + return (s->base.pc_first & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK) + || (s->base.pc_next & TARGET_PAGE_MASK) == (dest & TARGET_PAGE_MASK); #else return true; #endif @@ -1484,17 +1481,17 @@ static inline bool use_goto_tb(DisasContext *s, uint32_t dest) /* Generate a jump to an immediate address. */ static void gen_jmp_tb(DisasContext *s, int n, uint32_t dest) { - if (unlikely(s->singlestep_enabled)) { + if (unlikely(s->base.singlestep_enabled)) { gen_exception(s, dest, EXCP_DEBUG); } else if (use_goto_tb(s, dest)) { tcg_gen_goto_tb(n); tcg_gen_movi_i32(QREG_PC, dest); - tcg_gen_exit_tb(s->tb, n); + tcg_gen_exit_tb(s->base.tb, n); } else { gen_jmp_im(s, dest); tcg_gen_exit_tb(NULL, 0); } - s->is_jmp = DISAS_NORETURN; + s->base.is_jmp = DISAS_NORETURN; } DISAS_INSN(scc) @@ -1541,12 +1538,12 @@ DISAS_INSN(dbcc) DISAS_INSN(undef_mac) { - gen_exception(s, s->insn_pc, EXCP_LINEA); + gen_exception(s, s->base.pc_next, EXCP_LINEA); } DISAS_INSN(undef_fpu) { - gen_exception(s, s->insn_pc, EXCP_LINEF); + gen_exception(s, s->base.pc_next, EXCP_LINEF); } DISAS_INSN(undef) @@ -1555,8 +1552,8 @@ DISAS_INSN(undef) for the 680x0 series, as well as those that are implemented but actually illegal for CPU32 or pre-68020. */ qemu_log_mask(LOG_UNIMP, "Illegal instruction: %04x @ %08x\n", - insn, s->insn_pc); - gen_exception(s, s->insn_pc, EXCP_UNSUPPORTED); + insn, s->base.pc_next); + gen_exception(s, s->base.pc_next, EXCP_UNSUPPORTED); } DISAS_INSN(mulw) @@ -1616,7 +1613,7 @@ DISAS_INSN(divl) if (ext & 0x400) { if (!m68k_feature(s->env, M68K_FEATURE_QUAD_MULDIV)) { - gen_exception(s, s->insn_pc, EXCP_ILLEGAL); + gen_exception(s, s->base.pc_next, EXCP_ILLEGAL); return; } @@ -2310,7 +2307,7 @@ DISAS_INSN(arith_im) break; case OS_WORD: if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } src1 = gen_get_sr(s); @@ -2479,7 +2476,7 @@ DISAS_INSN(cas2w) (REG(ext1, 6) << 3) | (REG(ext2, 0) << 6) | (REG(ext1, 0) << 9)); - if (tb_cflags(s->tb) & CF_PARALLEL) { + if (tb_cflags(s->base.tb) & CF_PARALLEL) { gen_helper_exit_atomic(cpu_env); } else { gen_helper_cas2w(cpu_env, regs, addr1, addr2); @@ -2529,7 +2526,7 @@ DISAS_INSN(cas2l) (REG(ext1, 6) << 3) | (REG(ext2, 0) << 6) | (REG(ext1, 0) << 9)); - if (tb_cflags(s->tb) & CF_PARALLEL) { + if (tb_cflags(s->base.tb) & CF_PARALLEL) { gen_helper_cas2l_parallel(cpu_env, regs, addr1, addr2); } else { gen_helper_cas2l(cpu_env, regs, addr1, addr2); @@ -2720,7 +2717,7 @@ DISAS_INSN(swap) DISAS_INSN(bkpt) { - gen_exception(s, s->insn_pc, EXCP_DEBUG); + gen_exception(s, s->base.pc_next, EXCP_DEBUG); } DISAS_INSN(pea) @@ -2773,7 +2770,7 @@ DISAS_INSN(pulse) DISAS_INSN(illegal) { - gen_exception(s, s->insn_pc, EXCP_ILLEGAL); + gen_exception(s, s->base.pc_next, EXCP_ILLEGAL); } /* ??? This should be atomic. */ @@ -2803,7 +2800,7 @@ DISAS_INSN(mull) if (ext & 0x400) { if (!m68k_feature(s->env, M68K_FEATURE_QUAD_MULDIV)) { - gen_exception(s, s->insn_pc, EXCP_UNSUPPORTED); + gen_exception(s, s->base.pc_next, EXCP_UNSUPPORTED); return; } @@ -2904,7 +2901,7 @@ DISAS_INSN(unlk) DISAS_INSN(reset) { if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } @@ -4375,7 +4372,7 @@ DISAS_INSN(chk) } /* fallthru */ default: - gen_exception(s, s->insn_pc, EXCP_ILLEGAL); + gen_exception(s, s->base.pc_next, EXCP_ILLEGAL); return; } SRC_EA(env, src, opsize, 1, NULL); @@ -4402,13 +4399,13 @@ DISAS_INSN(chk2) opsize = OS_LONG; break; default: - gen_exception(s, s->insn_pc, EXCP_ILLEGAL); + gen_exception(s, s->base.pc_next, EXCP_ILLEGAL); return; } ext = read_im16(env, s); if ((ext & 0x0800) == 0) { - gen_exception(s, s->insn_pc, EXCP_ILLEGAL); + gen_exception(s, s->base.pc_next, EXCP_ILLEGAL); return; } @@ -4468,7 +4465,7 @@ DISAS_INSN(move16_reg) ext = read_im16(env, s); if ((ext & (1 << 15)) == 0) { - gen_exception(s, s->insn_pc, EXCP_ILLEGAL); + gen_exception(s, s->base.pc_next, EXCP_ILLEGAL); } m68k_copy_line(AREG(ext, 12), AREG(insn, 0), index); @@ -4530,7 +4527,7 @@ DISAS_INSN(move_from_sr) TCGv sr; if (IS_USER(s) && !m68k_feature(env, M68K_FEATURE_M68000)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } sr = gen_get_sr(s); @@ -4547,7 +4544,7 @@ DISAS_INSN(moves) int extend; if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } @@ -4600,7 +4597,7 @@ DISAS_INSN(moves) DISAS_INSN(move_to_sr) { if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } gen_move_to_sr(env, s, insn, false); @@ -4610,7 +4607,7 @@ DISAS_INSN(move_to_sr) DISAS_INSN(move_from_usp) { if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } tcg_gen_ld_i32(AREG(insn, 0), cpu_env, @@ -4620,7 +4617,7 @@ DISAS_INSN(move_from_usp) DISAS_INSN(move_to_usp) { if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } tcg_gen_st_i32(AREG(insn, 0), cpu_env, @@ -4630,7 +4627,7 @@ DISAS_INSN(move_to_usp) DISAS_INSN(halt) { if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } @@ -4642,7 +4639,7 @@ DISAS_INSN(stop) uint16_t ext; if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } @@ -4656,10 +4653,10 @@ DISAS_INSN(stop) DISAS_INSN(rte) { if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } - gen_exception(s, s->insn_pc, EXCP_RTE); + gen_exception(s, s->base.pc_next, EXCP_RTE); } DISAS_INSN(cf_movec) @@ -4668,7 +4665,7 @@ DISAS_INSN(cf_movec) TCGv reg; if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } @@ -4689,7 +4686,7 @@ DISAS_INSN(m68k_movec) TCGv reg; if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } @@ -4711,7 +4708,7 @@ DISAS_INSN(m68k_movec) DISAS_INSN(intouch) { if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } /* ICache fetch. Implement as no-op. */ @@ -4720,7 +4717,7 @@ DISAS_INSN(intouch) DISAS_INSN(cpushl) { if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } /* Cache push/invalidate. Implement as no-op. */ @@ -4729,7 +4726,7 @@ DISAS_INSN(cpushl) DISAS_INSN(cpush) { if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } /* Cache push/invalidate. Implement as no-op. */ @@ -4738,7 +4735,7 @@ DISAS_INSN(cpush) DISAS_INSN(cinv) { if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } /* Invalidate cache line. Implement as no-op. */ @@ -4750,7 +4747,7 @@ DISAS_INSN(pflush) TCGv opmode; if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } @@ -4764,7 +4761,7 @@ DISAS_INSN(ptest) TCGv is_read; if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } is_read = tcg_const_i32((insn >> 5) & 1); @@ -4775,7 +4772,7 @@ DISAS_INSN(ptest) DISAS_INSN(wddata) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); } DISAS_INSN(wdebug) @@ -4783,7 +4780,7 @@ DISAS_INSN(wdebug) M68kCPU *cpu = m68k_env_get_cpu(env); if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } /* TODO: Implement wdebug. */ @@ -4793,7 +4790,7 @@ DISAS_INSN(wdebug) DISAS_INSN(trap) { - gen_exception(s, s->insn_pc, EXCP_TRAP0 + (insn & 0xf)); + gen_exception(s, s->base.pc_next, EXCP_TRAP0 + (insn & 0xf)); } static void gen_load_fcr(DisasContext *s, TCGv res, int reg) @@ -4860,7 +4857,7 @@ static void gen_op_fmove_fcr(CPUM68KState *env, DisasContext *s, switch (mode) { case 0: /* Dn */ if (mask != M68K_FPIAR && mask != M68K_FPSR && mask != M68K_FPCR) { - gen_exception(s, s->insn_pc, EXCP_ILLEGAL); + gen_exception(s, s->base.pc_next, EXCP_ILLEGAL); return; } if (is_write) { @@ -4871,7 +4868,7 @@ static void gen_op_fmove_fcr(CPUM68KState *env, DisasContext *s, return; case 1: /* An, only with FPIAR */ if (mask != M68K_FPIAR) { - gen_exception(s, s->insn_pc, EXCP_ILLEGAL); + gen_exception(s, s->base.pc_next, EXCP_ILLEGAL); return; } if (is_write) { @@ -5429,7 +5426,7 @@ DISAS_INSN(frestore) TCGv addr; if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } if (m68k_feature(s->env, M68K_FEATURE_M68040)) { @@ -5443,7 +5440,7 @@ DISAS_INSN(frestore) DISAS_INSN(fsave) { if (IS_USER(s)) { - gen_exception(s, s->insn_pc, EXCP_PRIVILEGE); + gen_exception(s, s->base.pc_next, EXCP_PRIVILEGE); return; } @@ -6075,14 +6072,14 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) /* generate intermediate code */ pc_start = tb->pc; - dc->tb = tb; + dc->base.tb = tb; dc->env = env; - dc->is_jmp = DISAS_NEXT; + dc->base.is_jmp = DISAS_NEXT; dc->pc = pc_start; dc->cc_op = CC_OP_DYNAMIC; dc->cc_op_synced = 1; - dc->singlestep_enabled = cs->singlestep_enabled; + dc->base.singlestep_enabled = cs->singlestep_enabled; dc->done_mac = 0; dc->writeback_mask = 0; num_insns = 0; @@ -6116,9 +6113,9 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) gen_io_start(); } - dc->insn_pc = dc->pc; + dc->base.pc_next = dc->pc; disas_m68k_insn(env, dc); - } while (!dc->is_jmp && !tcg_op_buf_full() && + } while (!dc->base.is_jmp && !tcg_op_buf_full() && !cs->singlestep_enabled && !singlestep && (pc_offset) < (TARGET_PAGE_SIZE - 32) && @@ -6128,13 +6125,13 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb) gen_io_end(); if (unlikely(cs->singlestep_enabled)) { /* Make sure the pc is updated, and raise a debug exception. */ - if (!dc->is_jmp) { + if (!dc->base.is_jmp) { update_cc_op(dc); tcg_gen_movi_i32(QREG_PC, dc->pc); } gen_helper_raise_exception(cpu_env, tcg_const_i32(EXCP_DEBUG)); } else { - switch(dc->is_jmp) { + switch (dc->base.is_jmp) { case DISAS_NEXT: update_cc_op(dc); gen_jmp_tb(dc, 0, dc->pc); |