diff options
Diffstat (limited to 'mppa_k1c/Asmblock.v')
| -rw-r--r-- | mppa_k1c/Asmblock.v | 22 |
1 files changed, 17 insertions, 5 deletions
diff --git a/mppa_k1c/Asmblock.v b/mppa_k1c/Asmblock.v index 386106d6..d335801e 100644 --- a/mppa_k1c/Asmblock.v +++ b/mppa_k1c/Asmblock.v @@ -85,7 +85,8 @@ Module Pregmap := EMap(PregEq). (** Conventional names for stack pointer ([SP]) and return address ([RA]). *) Notation "'SP'" := GPR12 (only parsing) : asm. -Notation "'FP'" := GPR14 (only parsing) : asm. +Notation "'FP'" := GPR17 (only parsing) : asm. +Notation "'MFP'" := R17 (only parsing) : asm. Notation "'GPRA'" := GPR16 (only parsing) : asm. Notation "'RTMP'" := GPR32 (only parsing) : asm. @@ -178,6 +179,8 @@ Inductive ex_instruction : Type := | Pbuiltin: external_function -> list (builtin_arg preg) -> builtin_res preg -> ex_instruction (**r built-in function (pseudo) *) + | Pdiv (**r 32 bits integer division, call to __divdi3 *) + | Pdivu (**r 32 bits integer division, call to __udivdi3 *) . (** FIXME: comment not up to date ! @@ -543,9 +546,8 @@ Proof. assert (b :: body = nil). eapply H; eauto. discriminate. - destruct body; destruct exit. all: simpl; auto; try constructor. - + exploreInst. + + exploreInst; try discriminate. simpl. contradiction. - discriminate. + intros. discriminate. Qed. @@ -1481,10 +1483,20 @@ Definition exec_control (f: function) (oc: option control) (rs: regset) (m: mem) | (None, _) => Stuck end - (** Pseudo-instructions *) | Pbuiltin ef args res => Stuck (**r treated specially below *) + | Pdiv => + match Val.divs (rs GPR0) (rs GPR1) with + | Some v => Next (rs # GPR0 <- v # RA <- (rs RA)) m + | None => Stuck + end + + | Pdivu => + match Val.divu (rs GPR0) (rs GPR1) with + | Some v => Next (rs # GPR0 <- v # RA <- (rs RA)) m + | None => Stuck + end end | None => Next rs m end. @@ -1506,7 +1518,7 @@ Definition preg_of (r: mreg) : preg := match r with | R0 => GPR0 | R1 => GPR1 | R2 => GPR2 | R3 => GPR3 | R4 => GPR4 | R5 => GPR5 | R6 => GPR6 | R7 => GPR7 | R8 => GPR8 | R9 => GPR9 - | R10 => GPR10 | R11 => GPR11 (* | R12 => GPR12 | R13 => GPR13 | *) | R14 => GPR14 + | R10 => GPR10 | R11 => GPR11 (* | R12 => GPR12 | R13 => GPR13 | R14 => GPR14 *) | R15 => GPR15 (* | R16 => GPR16 *) | R17 => GPR17 | R18 => GPR18 | R19 => GPR19 | R20 => GPR20 | R21 => GPR21 | R22 => GPR22 | R23 => GPR23 | R24 => GPR24 | R25 => GPR25 | R26 => GPR26 | R27 => GPR27 | R28 => GPR28 | R29 => GPR29 |