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target/m68k: Use tcg_gen_ext_i32 

We still need to check OS_{BYTE,WORD,LONG},
because m68k includes floating point in OS_*.

Reviewed-by: Philippe Mathieu-Daudé <philmd@linaro.org>
Signed-off-by: Richard Henderson <richard.henderson@linaro.org>
master
Richard Henderson 2023-10-19 11:20:12 -07:00
parent 23f3d586e4
commit 443025e4d0
1 changed files with 3 additions and 20 deletions
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23
target/m68k/translate.c
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@ -520,21 +520,9 @@ static inline void gen_ext(TCGv res, TCGv val, int opsize, int sign)
{
switch (opsize) {
case OS_BYTE:
if (sign) {
tcg_gen_ext8s_i32(res, val);
} else {
tcg_gen_ext8u_i32(res, val);
}
break;
case OS_WORD:
if (sign) {
tcg_gen_ext16s_i32(res, val);
} else {
tcg_gen_ext16u_i32(res, val);
}
break;
case OS_LONG:
tcg_gen_mov_i32(res, val);
tcg_gen_ext_i32(res, val, opsize | (sign ? MO_SIGN : 0));
break;
default:
g_assert_not_reached();
@ -1072,15 +1060,10 @@ static int gen_ea_mode_fp(CPUM68KState *env, DisasContext *s, int mode,
tmp = tcg_temp_new();
switch (opsize) {
case OS_BYTE:
tcg_gen_ext8s_i32(tmp, reg);
gen_helper_exts32(tcg_env, fp, tmp);
break;
case OS_WORD:
tcg_gen_ext16s_i32(tmp, reg);
gen_helper_exts32(tcg_env, fp, tmp);
break;
case OS_LONG:
gen_helper_exts32(tcg_env, fp, reg);
tcg_gen_ext_i32(tmp, reg, opsize | MO_SIGN);
gen_helper_exts32(tcg_env, fp, tmp);
break;
case OS_SINGLE:
gen_helper_extf32(tcg_env, fp, reg);