Add storeimm32 and storeimm64 syntax

These explicitly allow usage of storeimm32 and storeimm64 in the
assembler syntax. It will also warn you if you try to store a value
that's too large using the storeimm32 instruction

Signed-off-by: Alek Ratzloff <alekratz@gmail.com>

src/vm/obj/syn/ast.rs

@@ -59,6 +59,8 @@ pub enum Inst {
     Load(Reg, Reg),
     Store(Reg, Reg),
     StoreImm(Reg, ImmValue),
+    StoreImm32(Reg, ImmValue),
+    StoreImm64(Reg, ImmValue),
     MemCopy(Reg, Reg),
     RegCopy(Reg, Reg),
 
@@ -101,6 +103,8 @@ impl Inst {
                     STOREIMM64
                 }
             }
+            Inst::StoreImm32(_, _) => STOREIMM32,
+            Inst::StoreImm64(_, _) => STOREIMM64,
             Inst::MemCopy(_, _) => MEMCOPY,
             Inst::RegCopy(_, _) => REGCOPY,
 

src/vm/obj/syn/parser.lalrpop

@@ -59,6 +59,8 @@ Inst: Inst = {
     "load" <d:Reg> "," <s:Reg> => Inst::Load(d, s),
     "store" <d:Reg> "," <s:Reg> => Inst::Store(d, s),
     "storeimm" <d:Reg> "," <s:ImmValue> => Inst::StoreImm(d, s),
+    "storeimm32" <d:Reg> "," <s:ImmValue> => Inst::StoreImm32(d, s),
+    "storeimm64" <d:Reg> "," <s:ImmValue> => Inst::StoreImm64(d, s),
     "memcopy" <d:Reg> "," <s:Reg> => Inst::MemCopy(d, s),
     "regcopy" <d:Reg> "," <s:Reg> => Inst::RegCopy(d, s),
     "nop" => Inst::Nop,