haraldwolff/qemu-patch-raspberry4
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target/m68k: Rename DISAS_UPDATE and gen_lookup_tb

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The name gen_lookup_tb is at odds with tcg_gen_lookup_and_goto_tb.
For these cases, we do indeed want to exit back to the main loop.
Similarly, DISAS_UPDATE performs no actual update, whereas DISAS_EXIT
does what it says.

Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
Message-Id: <20180512050250.12774-6-richard.henderson@linaro.org>
Signed-off-by: Laurent Vivier <laurent@vivier.eu>
This commit is contained in:
Richard Henderson 2018-05-11 22:02:46 -07:00 committed by Laurent Vivier
parent 8aaf7da9c3
commit 4106f26e95
1 changed files with 10 additions and 10 deletions
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20
target/m68k/translate.c
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@ -198,7 +198,7 @@ static void do_writebacks(DisasContext *s)
/* is_jmp field values */
#define DISAS_JUMP DISAS_TARGET_0 /* only pc was modified dynamically */
#define DISAS_UPDATE DISAS_TARGET_1 /* cpu state was modified dynamically */
#define DISAS_EXIT DISAS_TARGET_1 /* cpu state was modified dynamically */
#if defined(CONFIG_USER_ONLY)
#define IS_USER(s) 1
@ -1446,11 +1446,11 @@ static void gen_jmpcc(DisasContext *s, int cond, TCGLabel *l1)
}
/* Force a TB lookup after an instruction that changes the CPU state. */
static void gen_lookup_tb(DisasContext *s)
static void gen_exit_tb(DisasContext *s)
{
update_cc_op(s);
tcg_gen_movi_i32(QREG_PC, s->pc);
s->is_jmp = DISAS_UPDATE;
s->is_jmp = DISAS_EXIT;
}
#define SRC_EA(env, result, opsize, op_sign, addrp) do { \
@ -4604,7 +4604,7 @@ DISAS_INSN(move_to_sr)
return;
}
gen_move_to_sr(env, s, insn, false);
gen_lookup_tb(s);
gen_exit_tb(s);
}
DISAS_INSN(move_from_usp)
@ -4680,7 +4680,7 @@ DISAS_INSN(cf_movec)
reg = DREG(ext, 12);
}
gen_helper_cf_movec_to(cpu_env, tcg_const_i32(ext & 0xfff), reg);
gen_lookup_tb(s);
gen_exit_tb(s);
}
DISAS_INSN(m68k_movec)
@ -4705,7 +4705,7 @@ DISAS_INSN(m68k_movec)
} else {
gen_helper_m68k_movec_from(reg, cpu_env, tcg_const_i32(ext & 0xfff));
}
gen_lookup_tb(s);
gen_exit_tb(s);
}
DISAS_INSN(intouch)
@ -5749,7 +5749,7 @@ DISAS_INSN(to_macsr)
TCGv val;
SRC_EA(env, val, OS_LONG, 0, NULL);
gen_helper_set_macsr(cpu_env, val);
gen_lookup_tb(s);
gen_exit_tb(s);
}
DISAS_INSN(to_mask)
@ -6144,9 +6144,9 @@ void gen_intermediate_code(CPUState *cs, TranslationBlock *tb)
tcg_gen_lookup_and_goto_ptr();
break;
default:
case DISAS_UPDATE:
update_cc_op(dc);
/* indicate that the hash table must be used to find the next TB */
case DISAS_EXIT:
/* We updated CC_OP and PC in gen_exit_tb, but also modified
other state that may require returning to the main loop. */
tcg_gen_exit_tb(NULL, 0);
break;
case DISAS_NORETURN: