haraldwolff/qemu-patch-raspberry4
1
0
Fork 0
Code Issues Pull requests Packages Projects Releases Wiki Activity

target-sh4: optimize addc using add2

Browse source 
Reviewed-by: Richard Henderson <rth@twiddle.net>
Signed-off-by: Aurelien Jarno <aurelien@aurel32.net>
This commit is contained in:
Aurelien Jarno 2015-05-25 01:28:56 +02:00
parent 3408694525
commit a2368e01c9
1 changed files with 4 additions and 7 deletions
Show stats Download patch file Download diff file Expand all files Collapse all files

11
target-sh4/translate.c
View file

@ -644,15 +644,12 @@ static void _decode_opc(DisasContext * ctx)
case 0x300e: /* addc Rm,Rn */ case 0x300e: /* addc Rm,Rn */
{ {
TCGv t0, t1; TCGv t0, t1;
t0 = tcg_temp_new(); t0 = tcg_const_tl(0);
t1 = tcg_temp_new(); t1 = tcg_temp_new();
tcg_gen_add_i32(t0, REG(B7_4), REG(B11_8)); tcg_gen_add2_i32(t1, cpu_sr_t, cpu_sr_t, t0, REG(B7_4), t0);
tcg_gen_add_i32(t1, cpu_sr_t, t0); tcg_gen_add2_i32(REG(B11_8), cpu_sr_t,
tcg_gen_setcond_i32(TCG_COND_GTU, cpu_sr_t, REG(B11_8), t0); REG(B11_8), t0, t1, cpu_sr_t);
tcg_gen_setcond_i32(TCG_COND_GTU, t0, t0, t1);
tcg_gen_or_i32(cpu_sr_t, cpu_sr_t, t0);
tcg_temp_free(t0); tcg_temp_free(t0);
tcg_gen_mov_i32(REG(B11_8), t1);
tcg_temp_free(t1); tcg_temp_free(t1);
} }
return; return;