Refactor the parsing and register assignment
Instead of using bare lists/conses/numbers for register assignments we now use
a separate data type. This is a bit more wordy, but far easier to read and work
with.
| author |
Steve Losh <steve@stevelosh.com> |
| date |
Thu, 14 Apr 2016 17:16:20 +0000 |
| parents |
fdb771cc2b8c |
| children |
1dd07907df49 |
(in-package #:bones.wam)
(deftype heap-cell ()
`(unsigned-byte ,+cell-width+))
(deftype heap-cell-tag ()
`(unsigned-byte ,+cell-tag-width+))
(deftype heap-cell-value ()
`(unsigned-byte ,+cell-value-width+))
(deftype heap-index ()
`(integer 0 ,(1- +heap-limit+)))
(deftype register-index ()
`(integer 0 ,(1- +register-count+)))
(deftype functor-index ()
`(integer 0 ,(1- array-total-size-limit)))
(deftype arity ()
`(integer 0 ,+maximum-arity+))
(deftype functor ()
'(cons symbol arity))
(deftype code-word ()
`(unsigned-byte ,+code-word-size+))
(deftype code-index ()
; either an address or the sentinal
`(integer 0 ,(1- +code-limit+)))
(deftype opcode ()
'(integer 0 12))