diff options
Diffstat (limited to 'powerpc/Asm.v')
| -rw-r--r-- | powerpc/Asm.v | 16 |
1 files changed, 15 insertions, 1 deletions
diff --git a/powerpc/Asm.v b/powerpc/Asm.v index ad24f563..4fb38ff8 100644 --- a/powerpc/Asm.v +++ b/powerpc/Asm.v @@ -231,6 +231,7 @@ Inductive instruction : Type := | Pfres: freg -> freg -> instruction (**r approximate inverse *) | Pfsel: freg -> freg -> freg -> freg -> instruction (**r FP conditional move *) | Pisel: ireg -> ireg -> ireg -> crbit -> instruction (**r integer select *) + | Pfsel_gen: freg -> freg -> freg -> crbit -> instruction (**r floating point select *) | Pisync: instruction (**r ISYNC barrier *) | Picbi: ireg -> ireg -> instruction (**r instruction cache invalidate *) | Picbtls: int -> ireg -> ireg -> instruction (**r instruction cache block touch and lock set *) @@ -860,6 +861,20 @@ Definition exec_instr (f: function) (i: instruction) (rs: regset) (m: mem) : out Next (nextinstr (rs#rd <- (Val.subf rs#r1 rs#r2))) m | Pfsubs rd r1 r2 => Next (nextinstr (rs#rd <- (Val.subfs rs#r1 rs#r2))) m + | Pisel rd r1 r2 bit => + let v := + match rs#(reg_of_crbit bit) with + | Vint n => if Int.eq n Int.zero then rs#r2 else (gpr_or_zero rs r1) + | _ => Vundef + end in + Next (nextinstr (rs #rd <- v #GPR0 <- Vundef)) m + | Pfsel_gen rd r1 r2 bit => + let v := + match rs#(reg_of_crbit bit) with + | Vint n => if Int.eq n Int.zero then rs#r2 else rs#r1 + | _ => Vundef + end in + Next (nextinstr (rs #rd <- v #GPR0 <- Vundef)) m | Plbz rd cst r1 => load1 Mint8unsigned rd cst r1 rs m | Plbzx rd r1 r2 => @@ -1073,7 +1088,6 @@ Definition exec_instr (f: function) (i: instruction) (rs: regset) (m: mem) : out | Pfrsqrte _ _ | Pfres _ _ | Pfsel _ _ _ _ - | Pisel _ _ _ _ | Plwarx _ _ _ | Plwbrx _ _ _ | Picbi _ _ |