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8f5cfc81 | 1 | /* Copyright (C) 2001 Free Software Foundation, Inc. |
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2 | * |
3 | * This program is free software; you can redistribute it and/or modify | |
4 | * it under the terms of the GNU General Public License as published by | |
5 | * the Free Software Foundation; either version 2, or (at your option) | |
6 | * any later version. | |
7 | * | |
8 | * This program is distributed in the hope that it will be useful, | |
9 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
10 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
11 | * GNU General Public License for more details. | |
12 | * | |
13 | * You should have received a copy of the GNU General Public License | |
14 | * along with this software; see the file COPYING. If not, write to | |
15 | * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, | |
16 | * Boston, MA 02111-1307 USA | |
17 | * | |
18 | * As a special exception, the Free Software Foundation gives permission | |
19 | * for additional uses of the text contained in its release of GUILE. | |
20 | * | |
21 | * The exception is that, if you link the GUILE library with other files | |
22 | * to produce an executable, this does not by itself cause the | |
23 | * resulting executable to be covered by the GNU General Public License. | |
24 | * Your use of that executable is in no way restricted on account of | |
25 | * linking the GUILE library code into it. | |
26 | * | |
27 | * This exception does not however invalidate any other reasons why | |
28 | * the executable file might be covered by the GNU General Public License. | |
29 | * | |
30 | * This exception applies only to the code released by the | |
31 | * Free Software Foundation under the name GUILE. If you copy | |
32 | * code from other Free Software Foundation releases into a copy of | |
33 | * GUILE, as the General Public License permits, the exception does | |
34 | * not apply to the code that you add in this way. To avoid misleading | |
35 | * anyone as to the status of such modified files, you must delete | |
36 | * this exception notice from them. | |
37 | * | |
38 | * If you write modifications of your own for GUILE, it is your choice | |
39 | * whether to permit this exception to apply to your modifications. | |
40 | * If you do not wish that, delete this exception notice. */ | |
41 | ||
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42 | #ifndef _SCM_INSTRUCTIONS_H_ |
43 | #define _SCM_INSTRUCTIONS_H_ | |
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44 | |
45 | #include <libguile.h> | |
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46 | |
47 | enum scm_opcode { | |
48 | #define VM_INSTRUCTION_TO_OPCODE 1 | |
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49 | #include "vm-expand.h" |
50 | #include "vm-i-system.i" | |
51 | #include "vm-i-scheme.i" | |
52 | #include "vm-i-loader.i" | |
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53 | #undef VM_INSTRUCTION_TO_OPCODE |
54 | scm_op_last | |
55 | }; | |
56 | ||
57 | struct scm_instruction { | |
58 | enum scm_opcode opcode; /* opcode */ | |
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59 | const char *name; /* instruction name */ |
60 | signed char len; /* Instruction length. This may be -1 for | |
61 | the loader (see the `VM_LOADER' | |
62 | macro). */ | |
63 | signed char npop; /* The number of values popped. This may be | |
64 | -1 for insns like `call' which can take | |
65 | any number of arguments. */ | |
46cd9a34 | 66 | char npush; /* the number of values pushed */ |
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67 | }; |
68 | ||
69 | #define SCM_INSTRUCTION_P(x) (scm_lookup_instruction (x)) | |
70 | #define SCM_INSTRUCTION_OPCODE(i) (scm_lookup_instruction (i)->opcode) | |
71 | #define SCM_INSTRUCTION_NAME(i) (scm_lookup_instruction (i)->name) | |
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72 | #define SCM_INSTRUCTION_LENGTH(i) (scm_lookup_instruction (i)->len) |
73 | #define SCM_INSTRUCTION_POPS(i) (scm_lookup_instruction (i)->npop) | |
74 | #define SCM_INSTRUCTION_PUSHES(i) (scm_lookup_instruction (i)->npush) | |
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75 | #define SCM_VALIDATE_INSTRUCTION(p,x) SCM_MAKE_VALIDATE (p, x, INSTRUCTION_P) |
76 | ||
77 | #define SCM_INSTRUCTION(i) (&scm_instruction_table[i]) | |
78 | ||
79 | extern struct scm_instruction scm_instruction_table[]; | |
80 | extern struct scm_instruction *scm_lookup_instruction (SCM name); | |
81 | ||
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82 | extern SCM scm_instruction_list (void); |
83 | extern SCM scm_instruction_p (SCM obj); | |
84 | extern SCM scm_instruction_length (SCM inst); | |
85 | extern SCM scm_instruction_pops (SCM inst); | |
86 | extern SCM scm_instruction_pushes (SCM inst); | |
87 | extern SCM scm_instruction_to_opcode (SCM inst); | |
88 | extern SCM scm_opcode_to_instruction (SCM op); | |
89 | ||
07e56b27 | 90 | extern void scm_bootstrap_instructions (void); |
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91 | extern void scm_init_instructions (void); |
92 | ||
8f5cfc81 | 93 | #endif /* _SCM_INSTRUCTIONS_H_ */ |
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94 | |
95 | /* | |
96 | Local Variables: | |
97 | c-file-style: "gnu" | |
98 | End: | |
99 | */ |