| : stack-type-name ( addr u "name" -- ) |
: stack-type-name ( addr u "name" -- ) |
| single 0 create-type ; |
single 0 create-type ; |
| |
|
| s" Cell" stack-type-name w |
wordlist constant type-names \ this is here just to meet the requirement |
| s" Float" stack-type-name r |
\ that a type be a word; it is never used for lookup |
| |
|
| s" IP" save-mem w make-stack inst-stream |
: stack ( "name" "stack-pointer" "type" -- ) |
| |
\ define stack |
| |
name { d: stack-name } |
| |
name { d: stack-pointer } |
| |
name { d: stack-type } |
| |
get-current type-names set-current |
| |
stack-type 2dup nextname stack-type-name |
| |
set-current |
| |
stack-pointer lastxt >body stack-name nextname make-stack ; |
| |
|
| |
stack inst-stream IP Cell |
| ' inst-in-index inst-stream stack-in-index-xt ! |
' inst-in-index inst-stream stack-in-index-xt ! |
| ' inst-stream <is> inst-stream-f |
' inst-stream <is> inst-stream-f |
| |
|
| s" sp" save-mem w make-stack data-stack |
|
| s" fp" save-mem r make-stack fp-stack |
|
| s" rp" save-mem w make-stack return-stack |
|
| \ !! initialize stack-in and stack-out |
\ !! initialize stack-in and stack-out |
| |
|
| \ offset computation |
\ offset computation |
