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a6029b97 | 1 | /* Copyright (C) 2001, 2009, 2010 Free Software Foundation, Inc. |
560b9c25 AW |
2 | * |
3 | * This library is free software; you can redistribute it and/or | |
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4 | * modify it under the terms of the GNU Lesser General Public License |
5 | * as published by the Free Software Foundation; either version 3 of | |
6 | * the License, or (at your option) any later version. | |
a98cef7e | 7 | * |
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8 | * This library is distributed in the hope that it will be useful, but |
9 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
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10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
11 | * Lesser General Public License for more details. | |
a98cef7e | 12 | * |
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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 | |
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15 | * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA |
16 | * 02110-1301 USA | |
560b9c25 | 17 | */ |
a98cef7e | 18 | |
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19 | #ifndef _SCM_VM_H_ |
20 | #define _SCM_VM_H_ | |
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21 | |
22 | #include <libguile.h> | |
22f4ee48 | 23 | #include <libguile/programs.h> |
a98cef7e | 24 | |
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25 | #define SCM_VM_BOOT_HOOK 0 |
26 | #define SCM_VM_HALT_HOOK 1 | |
27 | #define SCM_VM_NEXT_HOOK 2 | |
7a0d0cee KN |
28 | #define SCM_VM_BREAK_HOOK 3 |
29 | #define SCM_VM_ENTER_HOOK 4 | |
30 | #define SCM_VM_APPLY_HOOK 5 | |
31 | #define SCM_VM_EXIT_HOOK 6 | |
32 | #define SCM_VM_RETURN_HOOK 7 | |
33 | #define SCM_VM_NUM_HOOKS 8 | |
a98cef7e | 34 | |
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35 | struct scm_vm; |
36 | ||
7656f194 | 37 | typedef SCM (*scm_t_vm_engine) (SCM vm, SCM program, SCM *argv, int nargs); |
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38 | |
39 | #define SCM_VM_REGULAR_ENGINE 0 | |
40 | #define SCM_VM_DEBUG_ENGINE 1 | |
41 | #define SCM_VM_NUM_ENGINES 2 | |
42 | ||
17e90c5e | 43 | struct scm_vm { |
2fb924f6 | 44 | scm_t_uint8 *ip; /* instruction pointer */ |
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45 | SCM *sp; /* stack pointer */ |
46 | SCM *fp; /* frame pointer */ | |
47 | size_t stack_size; /* stack size */ | |
48 | SCM *stack_base; /* stack base address */ | |
49 | SCM *stack_limit; /* stack limit address */ | |
6d14383e | 50 | int engine; /* which vm engine we're using */ |
17e90c5e KN |
51 | SCM hooks[SCM_VM_NUM_HOOKS]; /* hooks */ |
52 | SCM options; /* options */ | |
7656f194 | 53 | int trace_level; /* traces enabled if trace_level > 0 */ |
2d026f04 | 54 | scm_t_int64 cookie; /* used to detect unrewindable continuations */ |
17e90c5e | 55 | }; |
a98cef7e | 56 | |
560b9c25 | 57 | SCM_API SCM scm_the_vm_fluid; |
7bbed518 | 58 | |
6f3b0cc2 AW |
59 | #define SCM_VM_P(x) (SCM_NIMP (x) && SCM_TYP7 (x) == scm_tc7_vm) |
60 | #define SCM_VM_DATA(vm) ((struct scm_vm *) SCM_CELL_WORD_1 (vm)) | |
17e90c5e | 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); | |
14aa25e4 | 67 | SCM_API SCM scm_vm_call_with_new_stack (SCM vm, SCM thunk, SCM id); |
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68 | SCM_API SCM scm_vm_option_ref (SCM vm, SCM key); |
69 | SCM_API SCM scm_vm_option_set_x (SCM vm, SCM key, SCM val); | |
70 | ||
71 | SCM_API SCM scm_vm_version (void); | |
72 | SCM_API SCM scm_the_vm (void); | |
73 | SCM_API SCM scm_vm_p (SCM obj); | |
74 | SCM_API SCM scm_vm_ip (SCM vm); | |
75 | SCM_API SCM scm_vm_sp (SCM vm); | |
76 | SCM_API SCM scm_vm_fp (SCM vm); | |
77 | SCM_API SCM scm_vm_boot_hook (SCM vm); | |
78 | SCM_API SCM scm_vm_halt_hook (SCM vm); | |
79 | SCM_API SCM scm_vm_next_hook (SCM vm); | |
80 | SCM_API SCM scm_vm_break_hook (SCM vm); | |
81 | SCM_API SCM scm_vm_enter_hook (SCM vm); | |
82 | SCM_API SCM scm_vm_apply_hook (SCM vm); | |
83 | SCM_API SCM scm_vm_exit_hook (SCM vm); | |
84 | SCM_API SCM scm_vm_return_hook (SCM vm); | |
85 | SCM_API SCM scm_vm_option (SCM vm, SCM key); | |
86 | SCM_API SCM scm_set_vm_option_x (SCM vm, SCM key, SCM val); | |
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87 | SCM_API SCM scm_vm_trace_level (SCM vm); |
88 | SCM_API SCM scm_set_vm_trace_level_x (SCM vm, SCM level); | |
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89 | |
90 | struct scm_vm_cont { | |
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91 | SCM *sp; |
92 | SCM *fp; | |
d8873dfe | 93 | scm_t_uint8 *ra, *mvra; |
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94 | scm_t_ptrdiff stack_size; |
95 | SCM *stack_base; | |
96 | scm_t_ptrdiff reloc; | |
97 | }; | |
98 | ||
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99 | #define SCM_VM_CONT_P(OBJ) (SCM_NIMP (OBJ) && SCM_TYP7 (OBJ) == scm_tc7_vm_cont) |
100 | #define SCM_VM_CONT_DATA(CONT) ((struct scm_vm_cont *) SCM_CELL_WORD_1 (CONT)) | |
fcd4901b | 101 | |
560b9c25 | 102 | SCM_API SCM scm_load_compiled_with_vm (SCM file); |
07e56b27 | 103 | |
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104 | SCM_INTERNAL void scm_i_vm_print (SCM x, SCM port, |
105 | scm_print_state *pstate); | |
d8873dfe | 106 | SCM_INTERNAL SCM scm_i_vm_capture_continuation (SCM vm); |
6f3b0cc2 AW |
107 | SCM_INTERNAL void scm_i_vm_cont_print (SCM x, SCM port, |
108 | scm_print_state *pstate); | |
a6029b97 | 109 | SCM_INTERNAL void scm_bootstrap_vm (void); |
560b9c25 | 110 | SCM_INTERNAL void scm_init_vm (void); |
a98cef7e | 111 | |
8f5cfc81 | 112 | #endif /* _SCM_VM_H_ */ |
a98cef7e | 113 | |
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114 | /* |
115 | Local Variables: | |
116 | c-file-style: "gnu" | |
117 | End: | |
118 | */ |