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Diffstat (limited to 'src/instructions.c')
| -rw-r--r-- | src/instructions.c | 173 |
1 files changed, 173 insertions, 0 deletions
diff --git a/src/instructions.c b/src/instructions.c new file mode 100644 index 000000000..2ed70f381 --- /dev/null +++ b/src/instructions.c @@ -0,0 +1,173 @@ +/* Copyright (C) 2001 Free Software Foundation, Inc. + * + * This program is free software; you can redistribute it and/or modify + * it under the terms of the GNU General Public License as published by + * the Free Software Foundation; either version 2, or (at your option) + * any later version. + * + * This program is distributed in the hope that it will be useful, + * but WITHOUT ANY WARRANTY; without even the implied warranty of + * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the + * GNU General Public License for more details. + * + * You should have received a copy of the GNU General Public License + * along with this software; see the file COPYING. If not, write to + * the Free Software Foundation, Inc., 59 Temple Place, Suite 330, + * Boston, MA 02111-1307 USA + * + * As a special exception, the Free Software Foundation gives permission + * for additional uses of the text contained in its release of GUILE. + * + * The exception is that, if you link the GUILE library with other files + * to produce an executable, this does not by itself cause the + * resulting executable to be covered by the GNU General Public License. + * Your use of that executable is in no way restricted on account of + * linking the GUILE library code into it. + * + * This exception does not however invalidate any other reasons why + * the executable file might be covered by the GNU General Public License. + * + * This exception applies only to the code released by the + * Free Software Foundation under the name GUILE. If you copy + * code from other Free Software Foundation releases into a copy of + * GUILE, as the General Public License permits, the exception does + * not apply to the code that you add in this way. To avoid misleading + * anyone as to the status of such modified files, you must delete + * this exception notice from them. + * + * If you write modifications of your own for GUILE, it is your choice + * whether to permit this exception to apply to your modifications. + * If you do not wish that, delete this exception notice. */ + +#if HAVE_CONFIG_H +# include <config.h> +#endif + +#include <string.h> +#include "instructions.h" + +struct scm_instruction scm_instruction_table[] = { +#define VM_INSTRUCTION_TO_TABLE 1 +#include "vm_expand.h" +#include "vm_system.i" +#include "vm_scheme.i" +#include "vm_loader.i" +#undef VM_INSTRUCTION_TO_TABLE + {scm_op_last} +}; + +/* C interface */ + +struct scm_instruction * +scm_lookup_instruction (SCM name) +{ + struct scm_instruction *ip; + char *symbol; + + if (SCM_SYMBOLP (name)) + for (ip = scm_instruction_table; ip->opcode != scm_op_last; ip++) + { + symbol = scm_to_locale_string (scm_symbol_to_string (name)); + if ((symbol) && (strcmp (ip->name, symbol) == 0)) + { + free (symbol); + return ip; + } + + if (symbol) + free (symbol); + } + + return 0; +} + +/* Scheme interface */ + +SCM_DEFINE (scm_instruction_list, "instruction-list", 0, 0, 0, + (void), + "") +#define FUNC_NAME s_scm_instruction_list +{ + SCM list = SCM_EOL; + struct scm_instruction *ip; + for (ip = scm_instruction_table; ip->opcode != scm_op_last; ip++) + list = scm_cons (scm_from_locale_symbol (ip->name), list); + return scm_reverse_x (list, SCM_EOL); +} +#undef FUNC_NAME + +SCM_DEFINE (scm_instruction_p, "instruction?", 1, 0, 0, + (SCM obj), + "") +#define FUNC_NAME s_scm_instruction_p +{ + return SCM_BOOL (SCM_INSTRUCTION_P (obj)); +} +#undef FUNC_NAME + +SCM_DEFINE (scm_instruction_length, "instruction-length", 1, 0, 0, + (SCM inst), + "") +#define FUNC_NAME s_scm_instruction_length +{ + SCM_VALIDATE_INSTRUCTION (1, inst); + return SCM_I_MAKINUM (SCM_INSTRUCTION_LENGTH (inst)); +} +#undef FUNC_NAME + +SCM_DEFINE (scm_instruction_pops, "instruction-pops", 1, 0, 0, + (SCM inst), + "") +#define FUNC_NAME s_scm_instruction_pops +{ + SCM_VALIDATE_INSTRUCTION (1, inst); + return SCM_I_MAKINUM (SCM_INSTRUCTION_POPS (inst)); +} +#undef FUNC_NAME + +SCM_DEFINE (scm_instruction_pushes, "instruction-pushes", 1, 0, 0, + (SCM inst), + "") +#define FUNC_NAME s_scm_instruction_pushes +{ + SCM_VALIDATE_INSTRUCTION (1, inst); + return SCM_I_MAKINUM (SCM_INSTRUCTION_PUSHES (inst)); +} +#undef FUNC_NAME + +SCM_DEFINE (scm_instruction_to_opcode, "instruction->opcode", 1, 0, 0, + (SCM inst), + "") +#define FUNC_NAME s_scm_instruction_to_opcode +{ + SCM_VALIDATE_INSTRUCTION (1, inst); + return SCM_I_MAKINUM (SCM_INSTRUCTION_OPCODE (inst)); +} +#undef FUNC_NAME + +SCM_DEFINE (scm_opcode_to_instruction, "opcode->instruction", 1, 0, 0, + (SCM op), + "") +#define FUNC_NAME s_scm_opcode_to_instruction +{ + int i; + SCM_MAKE_VALIDATE (1, op, I_INUMP); + i = SCM_I_INUM (op); + SCM_ASSERT_RANGE (1, op, 0 <= i && i < scm_op_last); + return scm_from_locale_symbol (scm_instruction_table[i].name); +} +#undef FUNC_NAME + +void +scm_init_instructions (void) +{ +#ifndef SCM_MAGIC_SNARFER +#include "instructions.x" +#endif +} + +/* + Local Variables: + c-file-style: "gnu" + End: +*/ |