diff options
Diffstat (limited to 'target/microblaze/translate.c')
| -rw-r--r-- | target/microblaze/translate.c | 24 |
1 files changed, 22 insertions, 2 deletions
diff --git a/target/microblaze/translate.c b/target/microblaze/translate.c index 0e7d24ddca..8da477457d 100644 --- a/target/microblaze/translate.c +++ b/target/microblaze/translate.c @@ -327,8 +327,28 @@ DO_TYPEBV(addic, true, gen_addc) DO_TYPEBI(addik, false, tcg_gen_addi_i32) DO_TYPEBV(addikc, true, gen_addkc) -DO_TYPEA(cmp, false, gen_helper_cmp) -DO_TYPEA(cmpu, false, gen_helper_cmpu) +static void gen_cmp(TCGv_i32 out, TCGv_i32 ina, TCGv_i32 inb) +{ + TCGv_i32 lt = tcg_temp_new_i32(); + + tcg_gen_setcond_i32(TCG_COND_LT, lt, inb, ina); + tcg_gen_sub_i32(out, inb, ina); + tcg_gen_deposit_i32(out, out, lt, 31, 1); + tcg_temp_free_i32(lt); +} + +static void gen_cmpu(TCGv_i32 out, TCGv_i32 ina, TCGv_i32 inb) +{ + TCGv_i32 lt = tcg_temp_new_i32(); + + tcg_gen_setcond_i32(TCG_COND_LTU, lt, inb, ina); + tcg_gen_sub_i32(out, inb, ina); + tcg_gen_deposit_i32(out, out, lt, 31, 1); + tcg_temp_free_i32(lt); +} + +DO_TYPEA(cmp, false, gen_cmp) +DO_TYPEA(cmpu, false, gen_cmpu) /* No input carry, but output carry. */ static void gen_rsub(TCGv_i32 out, TCGv_i32 ina, TCGv_i32 inb) |