On Tue, Jan 12, 2021 at 10:55 PM Philippe Mathieu-Daudé <f4...@amsat.org> wrote:
>
> DIV.G and DDIV.G are very similar. Provide gen_lext_DIV_G() a
> 'is_double' argument so it can generate DIV.G (divide 32-bit
> signed integers).
>
> With this commit we explicit the template used to generate
> opcode for 32/64-bit word variants. Next commits will be less
> verbose by providing both variants at once.
>
> Signed-off-by: Philippe Mathieu-Daudé <f4...@amsat.org>
> ---
> target/mips/godson2.decode | 1 +
> target/mips/loong-ext.decode | 1 +
> target/mips/loong_translate.c | 28 ++++++++++++++++++++++------
> target/mips/translate.c | 26 --------------------------
> 4 files changed, 24 insertions(+), 32 deletions(-)
...
> @@ -51,18 +54,26 @@ static bool gen_lext_DIV_G(DisasContext *s, int rd, int
> rs, int rt)
> gen_load_gpr(t0, rs);
> gen_load_gpr(t1, rt);
>
> + if (!is_double) {
> + tcg_gen_ext32s_tl(t0, t0);
> + tcg_gen_ext32s_tl(t0, t0);
Oops copy/paste problem...
> + tcg_gen_ext32s_tl(t1, t1);
> + }
> tcg_gen_brcondi_tl(TCG_COND_NE, t1, 0, l1);
> tcg_gen_movi_tl(cpu_gpr[rd], 0);
> tcg_gen_br(l3);
> gen_set_label(l1);
...
