diff options
Diffstat (limited to 'backend/Mach.v')
-rw-r--r-- | backend/Mach.v | 14 |
1 files changed, 12 insertions, 2 deletions
diff --git a/backend/Mach.v b/backend/Mach.v index 223d5ab1..3210a9e2 100644 --- a/backend/Mach.v +++ b/backend/Mach.v @@ -60,11 +60,16 @@ Inductive instruction: Type := | Mcall: signature -> mreg + ident -> instruction | Mtailcall: signature -> mreg + ident -> instruction | Mbuiltin: external_function -> list mreg -> mreg -> instruction + | Mannot: external_function -> list annot_param -> instruction | Mlabel: label -> instruction | Mgoto: label -> instruction | Mcond: condition -> list mreg -> label -> instruction | Mjumptable: mreg -> list label -> instruction - | Mreturn: instruction. + | Mreturn: instruction + +with annot_param: Type := + | APreg: mreg -> annot_param + | APstack: memory_chunk -> Z -> annot_param. Definition code := list instruction. @@ -87,7 +92,12 @@ Definition funsig (fd: fundef) := Definition genv := Genv.t fundef unit. -(** * Dynamic semantics *) +(** * Elements of dynamic semantics *) + +(** The operational semantics is in module [Machsem]. *) + +Definition chunk_of_type (ty: typ) := + match ty with Tint => Mint32 | Tfloat => Mfloat64 end. Module RegEq. Definition t := mreg. |