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8f5cfc81 | 1 | /* Copyright (C) 2001 Free Software Foundation, Inc. |
560b9c25 AW |
2 | * |
3 | * This library is free software; you can redistribute it and/or | |
4 | * modify it under the terms of the GNU Lesser General Public | |
5 | * License as published by the Free Software Foundation; either | |
6 | * version 2.1 of the License, or (at your option) any later version. | |
a98cef7e | 7 | * |
560b9c25 | 8 | * This library is distributed in the hope that it will be useful, |
a98cef7e | 9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
560b9c25 AW |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
11 | * Lesser General Public License for more details. | |
a98cef7e | 12 | * |
560b9c25 AW |
13 | * You should have received a copy of the GNU Lesser General Public |
14 | * License along with this library; if not, write to the Free Software | |
15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA | |
16 | */ | |
a98cef7e | 17 | |
8f5cfc81 KN |
18 | #ifndef _SCM_VM_H_ |
19 | #define _SCM_VM_H_ | |
a98cef7e KN |
20 | |
21 | #include <libguile.h> | |
22f4ee48 | 22 | #include <libguile/programs.h> |
a98cef7e | 23 | |
17e90c5e KN |
24 | #define SCM_VM_BOOT_HOOK 0 |
25 | #define SCM_VM_HALT_HOOK 1 | |
26 | #define SCM_VM_NEXT_HOOK 2 | |
7a0d0cee KN |
27 | #define SCM_VM_BREAK_HOOK 3 |
28 | #define SCM_VM_ENTER_HOOK 4 | |
29 | #define SCM_VM_APPLY_HOOK 5 | |
30 | #define SCM_VM_EXIT_HOOK 6 | |
31 | #define SCM_VM_RETURN_HOOK 7 | |
32 | #define SCM_VM_NUM_HOOKS 8 | |
a98cef7e | 33 | |
6d14383e AW |
34 | struct scm_vm; |
35 | ||
36 | typedef SCM (*scm_t_vm_engine) (struct scm_vm *vp, SCM program, SCM *argv, int nargs); | |
37 | ||
38 | #define SCM_VM_REGULAR_ENGINE 0 | |
39 | #define SCM_VM_DEBUG_ENGINE 1 | |
40 | #define SCM_VM_NUM_ENGINES 2 | |
41 | ||
17e90c5e KN |
42 | struct scm_vm { |
43 | scm_byte_t *ip; /* instruction pointer */ | |
44 | SCM *sp; /* stack pointer */ | |
45 | SCM *fp; /* frame pointer */ | |
46 | size_t stack_size; /* stack size */ | |
47 | SCM *stack_base; /* stack base address */ | |
48 | SCM *stack_limit; /* stack limit address */ | |
6d14383e | 49 | int engine; /* which vm engine we're using */ |
17e90c5e KN |
50 | SCM hooks[SCM_VM_NUM_HOOKS]; /* hooks */ |
51 | SCM options; /* options */ | |
17e90c5e KN |
52 | unsigned long time; /* time spent */ |
53 | unsigned long clock; /* bogos clock */ | |
b1b942b7 | 54 | SCM trace_frame; /* a frame being traced */ |
17e90c5e | 55 | }; |
a98cef7e | 56 | |
560b9c25 | 57 | SCM_API SCM scm_the_vm_fluid; |
7bbed518 | 58 | |
17e90c5e KN |
59 | #define SCM_VM_P(x) SCM_SMOB_PREDICATE (scm_tc16_vm, x) |
60 | #define SCM_VM_DATA(vm) ((struct scm_vm *) SCM_SMOB_DATA (vm)) | |
61 | #define SCM_VALIDATE_VM(pos,x) SCM_MAKE_VALIDATE (pos, x, VM_P) | |
a98cef7e | 62 | |
560b9c25 AW |
63 | SCM_API SCM scm_the_vm (); |
64 | SCM_API SCM scm_make_vm (void); | |
65 | SCM_API SCM scm_vm_apply (SCM vm, SCM program, SCM args); | |
66 | SCM_API SCM scm_c_vm_run (SCM vm, SCM program, SCM *argv, int nargs); | |
67 | SCM_API SCM scm_vm_option_ref (SCM vm, SCM key); | |
68 | SCM_API SCM scm_vm_option_set_x (SCM vm, SCM key, SCM val); | |
69 | ||
70 | SCM_API SCM scm_vm_version (void); | |
71 | SCM_API SCM scm_the_vm (void); | |
72 | SCM_API SCM scm_vm_p (SCM obj); | |
73 | SCM_API SCM scm_vm_ip (SCM vm); | |
74 | SCM_API SCM scm_vm_sp (SCM vm); | |
75 | SCM_API SCM scm_vm_fp (SCM vm); | |
76 | SCM_API SCM scm_vm_boot_hook (SCM vm); | |
77 | SCM_API SCM scm_vm_halt_hook (SCM vm); | |
78 | SCM_API SCM scm_vm_next_hook (SCM vm); | |
79 | SCM_API SCM scm_vm_break_hook (SCM vm); | |
80 | SCM_API SCM scm_vm_enter_hook (SCM vm); | |
81 | SCM_API SCM scm_vm_apply_hook (SCM vm); | |
82 | SCM_API SCM scm_vm_exit_hook (SCM vm); | |
83 | SCM_API SCM scm_vm_return_hook (SCM vm); | |
84 | SCM_API SCM scm_vm_option (SCM vm, SCM key); | |
85 | SCM_API SCM scm_set_vm_option_x (SCM vm, SCM key, SCM val); | |
86 | SCM_API SCM scm_vm_stats (SCM vm); | |
87 | SCM_API SCM scm_vm_trace_frame (SCM vm); | |
b1b942b7 AW |
88 | |
89 | struct scm_vm_cont { | |
90 | scm_byte_t *ip; | |
7aa6f86b AW |
91 | SCM *sp; |
92 | SCM *fp; | |
b1b942b7 AW |
93 | scm_t_ptrdiff stack_size; |
94 | SCM *stack_base; | |
95 | scm_t_ptrdiff reloc; | |
96 | }; | |
97 | ||
560b9c25 | 98 | SCM_API scm_t_bits scm_tc16_vm_cont; |
b1b942b7 AW |
99 | #define SCM_VM_CONT_P(OBJ) SCM_SMOB_PREDICATE (scm_tc16_vm_cont, OBJ) |
100 | #define SCM_VM_CONT_DATA(CONT) ((struct scm_vm_cont *) SCM_CELL_WORD_1 (CONT)) | |
fcd4901b | 101 | |
560b9c25 AW |
102 | SCM_API SCM scm_vm_capture_continuations (void); |
103 | SCM_API void scm_vm_reinstate_continuations (SCM conts); | |
bfffd258 | 104 | |
560b9c25 | 105 | SCM_API SCM scm_load_compiled_with_vm (SCM file); |
07e56b27 | 106 | |
560b9c25 | 107 | SCM_INTERNAL void scm_init_vm (void); |
a98cef7e | 108 | |
8f5cfc81 | 109 | #endif /* _SCM_VM_H_ */ |
a98cef7e | 110 | |
17e90c5e KN |
111 | /* |
112 | Local Variables: | |
113 | c-file-style: "gnu" | |
114 | End: | |
115 | */ |