blob: 8c3539a56a6663d488a4c5851ebab36337493cd6 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
|
(***********************************************************************)
(* *)
(* Caml Special Light *)
(* *)
(* Xavier Leroy, projet Cristal, INRIA Rocquencourt *)
(* *)
(* Copyright 1995 Institut National de Recherche en Informatique et *)
(* Automatique. Distributed only by permission. *)
(* *)
(***********************************************************************)
(* $Id$ *)
open Lambda
type label = int (* Symbolic code labels *)
type instruction =
Klabel of label
| Kacc of int
| Kenvacc of int
| Kpush
| Kpop of int
| Kassign of int
| Kpush_retaddr of label
| Kapply of int (* number of arguments *)
| Kappterm of int * int (* number of arguments, slot size *)
| Kreturn of int (* slot size *)
| Krestart
| Kgrab of int (* number of arguments *)
| Kclosure of label * int
| Kclosurerec of label * int
| Kgetglobal of Ident.t
| Ksetglobal of Ident.t
| Kconst of structured_constant
| Kmakeblock of int * int (* size, tag *)
| Kgetfield of int
| Ksetfield of int
| Kdummy of int
| Kupdate of int
| Kvectlength
| Kgetvectitem
| Ksetvectitem
| Kgetstringchar
| Ksetstringchar
| Kbranch of label
| Kbranchif of label
| Kbranchifnot of label
| Kstrictbranchif of label
| Kstrictbranchifnot of label
| Kswitch of label array * label array
| Kboolnot
| Kpushtrap of label
| Kpoptrap
| Kraise
| Kcheck_signals
| Kccall of string * int
| Knegint | Kaddint | Ksubint | Kmulint | Kdivint | Kmodint
| Kandint | Korint | Kxorint | Klslint | Klsrint | Kasrint
| Kintcomp of comparison
| Koffsetint of int
| Koffsetref of int
| Kgetmethod
| Kstop
let immed_min = -0x40000000
and immed_max = 0x3FFFFFFF
(* Actually the abstract machine accomodates -0x80000000 to 0x7FFFFFFF,
but these numbers overflow the Caml type int if the compiler runs on
a 32-bit processor. *)
|
