feat: fix typos

interp/README.md

@@ -70,7 +70,7 @@ object. Every memory object is given an index, and pointers use that index to
 look up the current active object for the pointer to load from or to copy
 when storing to it.
 
-Rolling back a function should roll back everyting, including the few
+Rolling back a function should roll back everything, including the few
 instructions emitted at runtime. This is done by treating instructions much
 like memory objects and removing the created instructions when necessary.
 
@@ -88,7 +88,7 @@ LLVM than initialization code. Also, there are a few other benefits:
     they can be propagated and provide some opportunities for other
     optimizations (like dead code elimination when branching on the contents of
     a global).
-  * Constants are much more efficent on microcontrollers, as they can be
+  * Constants are much more efficient on microcontrollers, as they can be
     allocated in flash instead of RAM.
 
 The Go SSA package does not create constant initializers for globals.

interp/compiler.go

@@ -254,7 +254,7 @@ func (r *runner) compileFunction(llvmFn llvm.Value) *function {
 					}
 				}
 			case llvm.BitCast, llvm.IntToPtr, llvm.PtrToInt:
-				// Bitcasts are ususally used to cast a pointer from one type to
+				// Bitcasts are usually used to cast a pointer from one type to
 				// another leaving the pointer itself intact.
 				inst.name = llvmInst.Name()
 				inst.operands = []value{

interp/memory.go

@@ -12,7 +12,7 @@ package interp
 //     done in interp and results in a revert.
 //
 // Right now the memory is assumed to be little endian. This will need an update
-// for big endian arcitectures, if TinyGo ever adds support for one.
+// for big endian architectures, if TinyGo ever adds support for one.
 
 import (
 	"encoding/binary"